Roadbed pavement detection point positioning device

Abstract

The utility model provides a roadbed pavement detection point positioning device, and relates to the technical field of roadbed pavement detection point positioning devices, a main body structure is respectively connected with a driving structure and a sliding spraying structure, and the main body structure is used for driving the driving structure and the sliding spraying structure to move; the driving structure is connected with the sliding spraying structure, and the driving structure is used for driving the sliding spraying structure to rotate or move in the first direction; the moving assembly is connected with the driving structure; the sliding assembly is used for moving in the first direction relative to the driving structure through the moving assembly. The positioning assembly is connected with the nozzle assembly and the sliding assembly, the positioning assembly is used for driving the nozzle assembly to move in the second direction, and the second direction is perpendicular to the first direction. The technical problem that in the prior art, when positioning marking is conducted through marking liquid, due to the fact that a marking device can not move up and down, the marking liquid is prone to being affected by wind and then deviates when encountering strong wind weather is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to roadbed pavement detection point positioning device's technical field, especially a kind of roadbed pavement detection point positioning device. BACKGROUND

[0002] Roadbed and pavement are two important components of highway structure, and their quality directly affects the safety, comfort and service life of the road.

[0003] In the roadbed pavement detection process, the first step is usually to locate the detection point, and the traditional positioning method is to measure the road surface with a tape measure, and mark the detection point with chalk or paint. However, due to the large detection range, multiple detection points and the need for cooperation with others, the entire process will consume a lot of time and manpower; and the existing positioning device, which uses marking liquid for positioning marking, when encountering strong winds, the marking device cannot move up and down, and the marking liquid is easily affected by the wind, causing deviation, reducing the accuracy of point placement. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a kind of roadbed pavement detection point positioning device to alleviate the technical problems that the existing technology uses marking liquid for positioning marking when encountering strong winds, the marking device cannot move up and down, and the marking liquid is easily affected by the wind, and then deviates.

[0005] To achieve the above-mentioned purpose, the utility model embodiment adopts the following technical solutions:

[0006] Firstly, the utility model provides a kind of roadbed pavement detection point positioning device, which includes a main body structure, a driving structure and a sliding spraying structure, the main body structure is connected with the driving structure and the sliding spraying structure respectively, and the main body structure is used to drive the driving structure and the sliding spraying structure to move;

[0007] The driving structure is connected with the sliding spraying structure, and the driving structure is used to drive the sliding spraying structure to rotate or move in the first direction;

[0008] The sliding spraying structure includes a moving assembly, a sliding assembly, a positioning assembly and a nozzle assembly, and the moving assembly is connected with the driving structure;

[0009] The sliding assembly is connected with the moving assembly, and the sliding assembly is used to move in the first direction relative to the driving structure through the moving assembly;

[0010] The positioning assembly is connected with the nozzle assembly, and the positioning assembly is connected with the sliding assembly, and the positioning assembly is used for driving the nozzle assembly to move in a second direction, and the second direction is perpendicular to the first direction.

[0011] Further, the main body structure comprises a vehicle shell, and a containing cavity is formed in the vehicle shell, and the containing cavity is used for containing the driving structure and the sliding spraying structure.

[0012] The driving structure has two groups, and the two groups of driving structures are oppositely distributed.

[0013] Each group of driving structures comprises a driving member, a worm and a support frame, and the driving member and the support frame are connected with the vehicle shell.

[0014] One end of the worm is connected with the output end of the driving member, and the other end is rotatably connected with the support frame, and the two worms are connected with the sliding spraying structure, so as to drive the sliding spraying structure to rotate or move in a first direction.

[0015] Further, the moving assembly comprises a rotating gear, a connecting block and a sliding block, and the rotating gear is respectively connected with the two worms on its two sides.

[0016] One end of the connecting block is connected with the rotating gear, and the other end is connected with the sliding block.

[0017] The cavity wall of the containing cavity in the vehicle shell is provided with a sliding groove along the first direction, and the sliding block is slidably connected with the sliding groove.

[0018] Further, the sliding assembly comprises a sliding plate, a connecting plate, a rotating block, a rotating gear, a first sliding groove and a second sliding groove.

[0019] The vehicle shell is provided with a support rod in the containing cavity along the first direction, the sliding plate has two groups, and the two groups of sliding plates are slidably connected with the support rod.

[0020] The connecting plate is arranged between the two groups of sliding plates and connected with the sliding plates.

[0021] One end of the rotating block is connected with the rotating gear, and the other end is connected with the rotating gear after penetrating through the connecting plate, so as to make the rotating gear and the rotating gear coaxial.

[0022] One side of the sliding plate is slidably connected with the positioning assembly through the first sliding groove, and the other side of the sliding plate is slidably connected with the nozzle assembly through the second sliding groove.

[0023] Further, the support rod has two groups and is spaced apart.

[0024] Both ends of each sliding plate are provided with through holes, and the sliding plate is slidably connected with the corresponding support rod through the through holes.

[0025] Further, the positioning assembly comprises a rack, a connecting rod and a sliding rod, the rack is connected with the nozzle assembly, and the rack is provided with insertion holes spaced apart along the second direction, and the rack is toothed with the rotating gear through the insertion holes;

[0026] The rack is slidably connected with the first sliding groove, and both ends of the rack are connected with the sliding rod through the connecting rod, and the sliding rod penetrates through the second sliding groove.

[0027] Further, the nozzle assembly comprises a support and a nozzle body, one end of the support is connected with the rack, and the other end is slidably connected with the second sliding groove;

[0028] The nozzle body is connected with the support.

[0029] Further, the roadbed pavement detection point positioning device further comprises a positioning structure, the positioning structure is connected with the main body structure, and the positioning structure is used for fixing the main body structure.

[0030] Further, the positioning structure comprises a support column, a pushing plate and a limiting assembly, both ends of the pushing plate are provided with the support column, and the support column is slidably connected with the main body structure;

[0031] One end of the limiting assembly is connected with the main body structure, and the other end is used for being inserted into the positioning groove formed in the support column.

[0032] Further, the limiting assembly comprises a limiting block and an elastic member, one end of the elastic member is connected with the main body structure, and the other end is connected with the limiting block, so as to push the limiting block to be inserted into the corresponding positioning groove.

[0033] The utility model can realize the following beneficial effects:

[0034] The utility model provides a kind of roadbed pavement detection point positioning device, including main body structure, drive structure and sliding spraying structure, main body structure is connected with drive structure and sliding spraying structure respectively, and main body structure is used to drive drive structure and sliding spraying structure to move;Drive structure is connected with sliding spraying structure, and drive structure is used to drive sliding spraying structure to rotate or move along first direction;Sliding spraying structure includes moving assembly, sliding assembly, positioning assembly and nozzle assembly, moving assembly is connected with drive structure;Sliding assembly is connected with moving assembly, and sliding assembly is used to move along first direction relative to drive structure by moving assembly;Positioning assembly is connected with nozzle assembly, and positioning assembly is connected with sliding assembly, positioning assembly is used to drive nozzle assembly to move along second direction, second direction is perpendicular to first direction.

[0035] In the utility model, main body structure is arranged at detection point position, and sliding spraying structure is driven to move along first direction by drive structure, and positioning assembly drives nozzle assembly to move along second direction by rotating moving assembly, to realize that sliding spraying structure is positioned on specified detection point position, to facilitate subsequent spraying work.

[0036] Compared with prior art, the roadbed pavement detection point positioning device provided by the utility model drives sliding spraying structure to move along first direction by drive structure first, and then drives moving assembly to rotate, to drive positioning assembly along with nozzle assembly to move along second direction, so that nozzle assembly can be accurately positioned at to-be-detected position.

[0037] To sum up, the utility model at least alleviates the technical problem that, in prior art, positioning mark using marking liquid is deviated due to that marking device cannot move up and down and marking liquid is easily affected by wind in strong wind weather. ACCURACY

[0038] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in prior art, the following will briefly introduce the drawings needed to be used in specific embodiments or prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor according to these drawings.

[0039] Figure 1 The overall structure schematic diagram of roadbed pavement detection point positioning device under the first visual angle provided by the utility model embodiment is shown;

[0040] Figure 2 The overall structure schematic diagram of roadbed pavement detection point positioning device under the second visual angle provided by the utility model embodiment is shown;

[0041] Figure 3 For Figure 2 A structure in the enlarged schematic view of part A;

[0042] Figure 4 For the internal structure of the roadbed pavement detection point positioning device provided by the embodiment of the utility model is partially shown schematically;

[0043] Figure 5 For the internal structure of the roadbed pavement detection point positioning device provided by the embodiment of the utility model is partially shown schematically;

[0044] Figure 6 For the internal structure of the roadbed pavement detection point positioning device provided by the embodiment of the utility model is partially shown schematically;

[0045] Icon: 1-main structure;11-car body;111-housing cavity;112-sliding groove;12-handle;13-universal wheel;14-supporting rod;2-positioning structure;21-supporting column;211-positioning groove;22-pushing plate;23-limiting assembly;231-limiting block;232-elastic member;3-driving structure;31-driving member;32-worm;33-supporting frame;4-sliding spraying structure;41-moving assembly;411-rotary gear;412-connection block;413-sliding block;42-sliding assembly;421-sliding plate;4211-through hole;422-connection plate;423-rotating block;424-rotary gear;425-first sliding slot;426-second sliding slot;43-positioning assembly;431-rack;4311-jack;432-connection rod;433-sliding rod;44-nozzle assembly;441-supporting member;442-nozzle body. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0047] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0048] It should be noted that like reference numerals and letters refer to like items in the several views, and once an item is defined in one view, it should not require further defining and explaining in the subsequent views.

[0049] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "upper", "lower", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship commonly placed when the utility model product is used, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0050] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0051] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "setting", "mounting", "connecting" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0052] Some embodiments of the utility model will be described in detail below with reference to the drawings. In the case of no conflict, the following examples and features in the examples can be combined with each other.

[0053] Example one

[0054] The embodiment provides a roadbed pavement detection point positioning device, which refers to Figure 1 and Figure 5The roadbed pavement detection point positioning device comprises a main body structure 1, a driving structure 3 and a sliding spraying structure 4, the main body structure 1 is connected with the driving structure 3 and the sliding spraying structure 4 respectively, and the main body structure 1 is used for driving the driving structure 3 and the sliding spraying structure 4 to move; the driving structure 3 is connected with the sliding spraying structure 4, and the driving structure 3 is used for driving the sliding spraying structure 4 to rotate or move along a first direction; the sliding spraying structure 4 comprises a moving assembly 41, a sliding assembly 42, a positioning assembly 43 and a nozzle assembly 44, the moving assembly 41 is connected with the driving structure 3; the sliding assembly 42 is connected with the moving assembly 41, and the sliding assembly 42 is used for moving along the first direction relative to the driving structure 3 through the moving assembly 41; the positioning assembly 43 is connected with the nozzle assembly 44, and the positioning assembly 43 is connected with the sliding assembly 42, and the positioning assembly 43 is used for driving the nozzle assembly 44 to move along a second direction, and the second direction is perpendicular to the first direction.

[0055] The embodiment of the utility model at least alleviated the technical problem that the existing technology in the encounter windy weather, because the marking device cannot move up and down, the marking liquid is easy to be influenced by the wind, and then the deviation occurs when using the marking liquid to mark.

[0056] In the embodiment of the utility model, the main body structure 1 is arranged at the detection point position, and the sliding spraying structure 4 is driven to move along the first direction through the driving structure 3, and the nozzle assembly 44 is driven to move along the second direction through the rotating moving assembly 41, thereby realizing the positioning of the sliding spraying structure 4 at the specified detection point position, so as to facilitate the subsequent spraying work.

[0057] Compared with the prior art, the roadbed pavement detection point positioning device provided by the embodiment of the utility model first drives the sliding spraying structure 4 to move along the first direction through the driving structure 3, and then drives the moving assembly 41 to rotate, and then drives the positioning assembly 43 and the nozzle assembly 44 to move along the second direction, so that the nozzle assembly 44 can be accurately positioned at the position to be detected.

[0058] In the optional implementation of the embodiment, referring to Figure 1 , Figure 4 and Figure 5 , the main body structure 1 comprises a vehicle shell 11, a containing cavity 111 is formed in the vehicle shell 11, and the containing cavity 111 is used for containing the driving structure 3 and the sliding spraying structure 4; the driving structure 3 has two groups, and the two groups of driving structures 3 are oppositely distributed and spaced apart; each group of driving structures 3 comprises a driving piece 31, a worm 32 and a support frame 33, and the driving piece 31 and the support frame 33 are connected with the vehicle shell 11; one end of the worm 32 is connected with the output end of the driving piece 31, the other end is rotatably connected with the support frame 33, and the two worms 32 are connected with the sliding spraying structure 4, so as to drive the sliding spraying structure 4 to rotate or move along the first direction.

[0059] Specifically, the inner bottom of the vehicle shell 11 is provided with a containing cavity 111, and two groups of driving structures 3 are arranged in the containing cavity 111. Each group of driving structures 3 is provided with a driving piece 31, a worm 32 and a support frame 33. The specific connection mode is that the output end of the driving piece 31 is provided with the worm 32 along the first direction, and the other end of the worm 32 is rotatably connected with the support frame 33. The two groups of driving structures 3 are spaced apart and opposite in direction, and the sliding spraying structure 4 is arranged between the two groups of driving structures 3 and is driven to move or rotate by the two groups of driving structures 3. It should be noted that the driving piece 31 is preferably a rotating motor.

[0060] Further, referring to Figure 5 , the moving assembly 41 comprises a rotating gear 411, a connecting block 412 and a sliding block 413. The rotating gear 411 is respectively toothed with the two worms 32 on its two sides. One end of the connecting block 412 is connected with the rotating gear 411, and the other end is connected with the sliding block 413. The cavity wall of the containing cavity 111 of the vehicle shell 11 is provided with a sliding groove 112 along the first direction. The sliding block 413 is slidably connected with the sliding groove 112.

[0061] Specifically, the sliding block 413 is slidably arranged in the sliding groove 112, and the sliding block 413 is rotatably connected with the rotating gear 411 through the connecting block 412. The rotating gear 411 is arranged between the two worms 32 and is toothed with the two worms 32. In use, the two worms 32 are rotated in the same direction to drive the rotating gear 411 to move along the first direction, and the two worms 32 are rotated in opposite directions to make the rotating gear 411 rotate.

[0062] Further, referring to Figure 6 , the sliding assembly 42 comprises a sliding plate 421, a connecting plate 422, a rotating block 423, a rotating gear 424, a first sliding groove 425 and a second sliding groove 426. The vehicle shell 11 is provided with a support rod 14 along the first direction in the containing cavity 111. The sliding plate 421 has two groups, and the two groups of sliding plates 421 are slidably connected with the support rod 14. The connecting plate 422 is arranged between the two groups of sliding plates 421 and connected with the sliding plates 421. One end of the rotating block 423 is connected with the rotating gear 411, and the other end is connected with the rotating gear 424 after penetrating through the connecting plate 422, so as to make the rotating gear 411 and the rotating gear 424 coaxial. One side of the sliding plate 421 is slidably connected with the positioning assembly 43 through the first sliding groove 425, and the other side of the sliding plate 421 is slidably connected with the nozzle assembly 44 through the second sliding groove 426.

[0063] Specifically, the support rod 14 is arranged in the accommodating cavity 111 along a first direction, and the sliding plate 421 is used for sliding connection with the support rod 14, and the rotating block 423 penetrates through the connecting plate 422 and is connected with the rotating gear 424 and the rotating gear 411 at two ends respectively, so that the rotating gear 411 drives the rotating gear 424 to rotate through the rotating block 423, and the rotating gear 424 is connected with the positioning assembly 43, and the positioning assembly 43 is driven to move by rotating the rotating gear 424; and the positioning assembly 43 is slidingly connected with the first sliding groove 425 to realize sliding relative to the sliding plate 421.

[0064] Further, referring to Figure 4 , the support rod 14 is provided with two groups and is distributed at intervals; the two ends of each sliding plate 421 are provided with through holes 4211, and the sliding plate 421 is slidingly connected with the corresponding support rod 14 through the through holes 4211.

[0065] Specifically, the support rod 14 is provided with two groups and is distributed at intervals, and the two groups of support rods 14 are horizontally distributed, and the two ends of each sliding plate 421 are provided with through holes 4211, and the sliding plate 421 is slidingly connected with the support rod 14 through the through holes 4211 provided in the sliding plate 421, so that the sliding plate 421 is arranged between the two groups of support rods 14, and the sliding plate 421 is stably slid along the support rod 14.

[0066] In an optional implementation manner of the embodiment, referring to Figure 6 , the positioning assembly 43 comprises a rack 431, a connecting rod 432 and a sliding rod 433, the rack 431 is connected with the nozzle assembly 44, and the rack 431 is provided with insertion holes 4311 at intervals along a second direction, and the rack 431 is toothedly connected with the rotating gear 424 through the insertion holes 4311; the rack 431 is slidingly connected with the first sliding groove 425, and the two ends of the rack 431 are connected with the sliding rod 433 through the connecting rod 432, and the sliding rod 433 penetrates through the second sliding groove 426.

[0067] Specifically, a plurality of insertion holes 4311 are provided at intervals on the side of the rack 431 facing the rotating gear 424 along the extension direction of the rack 431, and the rack 431 is toothedly connected with the rotating gear 424 through the insertion holes 4311; and the two ends of the rack 431 are connected with the two ends of the sliding rod 433 through the connecting rod 432, that is, a rectangular frame structure is formed by the rack 431, the sliding rod 433 and the two connecting rods 432; and the sliding rod 433 penetrates through the second sliding groove 426, and the second sliding groove 426 is provided with a hole matching the outer wall of the sliding rod 433 along the extension direction thereof.

[0068] Further, referring to Figure 6 , the nozzle assembly 44 comprises a support 441 and a nozzle body 442, one end of the support 441 is connected with the rack 431, the other end is slidingly connected with the second sliding groove 426; and the nozzle body 442 is connected with the support 441.

[0069] Specifically, two sides of the support 441 are bent downward, one side of the support 441 is connected with the upper surface of the rack 431, and the other side is connected with the top groove of the second sliding groove 426 in a sliding manner; in use, the support 441 is driven to move by the rack 431, and then the nozzle body 442 is driven to move, and the nozzle body 442 is used to be connected with an external feeding device.

[0070] In an optional embodiment of the present embodiment, referring to Figure 2 and Figure 3 , the roadbed and pavement detection point positioning device further comprises a positioning structure 2, the positioning structure 2 is connected with the main body structure 1, and the positioning structure 2 is used to fix the main body structure 1.

[0071] Specifically, the positioning structure 2 is connected with the main body structure 1, and in use, the positioning structure 2 is placed to support and fix the main body structure 1 after the main body structure 1 is moved to a corresponding position.

[0072] Further, referring to Figure 3 , the positioning structure 2 comprises a support column 21, a pushing plate 22, and a limiting assembly 23, both ends of the pushing plate 22 are provided with the support column 21, and the support column 21 is connected with the main body structure 1 in a sliding manner; one end of the limiting assembly 23 is connected with the main body structure 1, and the other end is used to be inserted into the positioning groove 211 provided on the support column 21.

[0073] Specifically, both ends of the pushing plate 22 are respectively provided with the support column 21, and the support column 21 is provided in the vehicle shell 11 in a sliding manner along the vertical direction, and the pushing plate 22 is fixedly provided on the top of the support column 21; in use, the pushing plate 22 is used to pull the support column 21 to move, so that the support column 21 is released from the positioning of the vehicle shell 11, and the vehicle shell 11 can move; and one end of the limiting assembly 23 is connected with the main body structure 1, and the other end is used to be inserted into the positioning groove 211 provided on the support column 21, so as to limit the support column 21 relative to the vehicle shell 11.

[0074] Further, referring to Figure 3 , the limiting assembly 23 comprises a limiting block 231 and an elastic member 232, one end of the elastic member 232 is connected with the main body structure 1, and the other end is connected with the limiting block 231, so as to push the limiting block 231 to be inserted into the corresponding positioning groove 211.

[0075] Specifically, one end of the elastic member 232 is connected with the main body structure 1, and the other end is inserted into the positioning groove 211 through the limiting block 231, so as to limit the support column 21 relative to the main body structure 1, and the limiting block 231 is preferably provided horizontally.

[0076] It should be noted that the main body structure 1 further comprises a handle 12 and universal wheels 13, the handle 12 is connected with the outer wall of the vehicle shell 11, and the universal wheels 13 are preferably provided with four, and the four universal wheels 13 are arranged on the bottom of the vehicle shell 11, so as to move the vehicle shell 11 by pushing the handle 12.

[0077] Finally, it should be noted that: each embodiment in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between each embodiment can be referred to each other. The above embodiments in the specification are used to illustrate the technical solutions of the utility model, but not to limit them. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced equivalently. The modification or replacement does not change the essence of the corresponding technical solution, which is still within the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A subgrade pavement detection point positioning device, characterized in that, The main body structure (1) is connected with the driving structure (3) and the sliding spraying structure (4) respectively and is used to drive the driving structure (3) and the sliding spraying structure (4) to move; The driving structure (3) is connected with the sliding spraying structure (4) and is used to drive the sliding spraying structure (4) to rotate or move in the first direction; The sliding spraying structure (4) comprises a moving assembly (41), a sliding assembly (42), a positioning assembly (43) and a nozzle assembly (44), the moving assembly (41) is connected with the driving structure (3); The sliding assembly (42) is connected with the moving assembly (41) and is used to move relative to the driving structure (3) in the first direction through the moving assembly (41); The positioning assembly (43) is connected with the nozzle assembly (44) and is connected with the sliding assembly (42), and the positioning assembly (43) is used to drive the nozzle assembly (44) to move in the second direction, and the second direction is perpendicular to the first direction.

2. The sub-grade pavement detection point positioning apparatus according to claim 1, wherein, The main body structure (1) comprises a vehicle shell (11), and a containing cavity (111) is arranged in the vehicle shell (11) and used for containing the driving structure (3) and the sliding spraying structure (4); The driving structure (3) comprises two groups, and the two groups of driving structures (3) are oppositely arranged and spaced apart; Each group of driving structures (3) comprises a driving piece (31), a worm (32) and a support frame (33), and the driving piece (31) and the support frame (33) are connected with the vehicle shell (11); One end of the worm (32) is connected with the output end of the driving piece (31), the other end is rotatably connected with the support frame (33), and the two worms (32) are connected with the sliding spraying structure (4) and used to drive the sliding spraying structure (4) to rotate or move in the first direction.

3. The sub-grade pavement detection point positioning apparatus of claim 2, wherein, The moving assembly (41) comprises a rotating gear (411), a connecting block (412) and a sliding block (413), and the rotating gear (411) is toothedly connected with the two worms (32) on the two sides thereof respectively; One end of the connecting block (412) is connected with the rotating gear (411), and the other end is connected with the sliding block (413); The cavity wall of the containing cavity (111) is provided with a sliding groove (112) in the first direction, and the sliding block (413) is slidably connected with the sliding groove (112).

4. The sub-grade pavement detection point positioning apparatus of claim 3, wherein, The sliding assembly (42) comprises a sliding plate (421), a connecting plate (422), a rotating block (423), a rotating gear (424), a first sliding groove (425) and a second sliding groove (426); The support rod (14) is arranged in the first direction in the accommodating cavity (111), the sliding plates (421) are arranged in two groups, and the two groups of sliding plates (421) are slidably connected with the support rod (14); The connecting plate (422) is arranged between the two groups of sliding plates (421) and is connected with the sliding plates (421); One end of the rotating block (423) is connected with the rotating gear (411), and the other end penetrates through the connecting plate (422) and is connected with the rotating gear (424), so as to coaxially arrange the rotating gear (411) and the rotating gear (424); The sliding plates (421) on one side are slidably connected with the positioning assembly (43) through the first sliding groove (425), and the sliding plates (421) on the other side are slidably connected with the nozzle assembly (44) through the second sliding groove (426).

5. The sub-grade pavement detection point positioning apparatus of claim 4, wherein, The support rod (14) is arranged in two groups and is spaced apart; Both ends of each sliding plate (421) are provided with through holes (4211), and the sliding plate (421) is slidably connected with the corresponding support rod (14) through the through hole (4211).

6. Subgrade pavement detection point positioning apparatus according to claim 4 or 5, characterized in that The positioning assembly (43) comprises a rack (431), a connecting rod (432) and a sliding rod (433), the rack (431) is connected with the nozzle assembly (44), the rack (431) is spaced apart along the second direction and is provided with an insertion hole (4311), and the rack (431) is toothedly connected with the rotating gear (424) through the insertion hole (4311); The rack (431) is slidably connected with the first sliding groove (425), both ends of the rack (431) are connected with the sliding rod (433) through the connecting rod (432), and the sliding rod (433) penetrates through the second sliding groove (426).

7. The sub-grade pavement detection point positioning apparatus of claim 6, wherein, The nozzle assembly (44) comprises a support (441) and a nozzle body (442), one end of the support (441) is connected with the rack (431), and the other end is slidably connected with the second sliding groove (426); The nozzle body (442) is connected with the support (441).

8. The sub-grade pavement detection point positioning apparatus of claim 1, wherein, The positioning structure (2) is connected with the main body structure (1), and the positioning structure (2) is used for fixing the main body structure (1).

9. The sub-grade pavement detection point positioning apparatus of claim 8, wherein, The positioning structure (2) comprises a support column (21), a pushing plate (22) and a limiting assembly (23), both ends of the pushing plate (22) are provided with the support column (21), and the support column (21) is slidably connected with the main body structure (1); One end of the limiting assembly (23) is connected with the main body structure (1), and the other end is used for being inserted into the positioning groove (211) arranged in the support column (21).

10. The sub-grade pavement detection point positioning apparatus of claim 9, wherein, The limiting assembly (23) comprises a limiting block (231) and an elastic member (232), one end of the elastic member (232) is connected with the main body structure (1), and the other end is connected with the limiting block (231) for pushing the limiting block (231) to insert into the corresponding positioning groove (211).

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