Municipal road safety detection device
By introducing sampling and auxiliary components into the municipal road safety inspection device, and utilizing servo motors and threaded sleeve structures, the stability of the drill bit and the overall stability of the device are enhanced, the offset problem when the drilling depth increases is solved, and the drilling accuracy and efficiency are improved.
Patent Information
- Application Number
- CN202522827620.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-12-31
AI Technical Summary
Existing borehole sampling devices struggle to enhance the stability of the borehole and the device when drilling deep holes, leading to drill bit deviation or device wobbling and reducing borehole sampling efficiency.
The device employs a sampling assembly and an auxiliary assembly. A servo motor drives a lead screw to rotate, which in turn lowers the moving plate and sliding sleeve. The sampling drill bit rotates as it descends, while the inclined rod and contact rod increase the opening angle to improve stability. The auxiliary assembly rises via a threaded sleeve and a side rod, which drives the adsorption cylinder to adsorb the road surface, enhancing the overall stability of the device.
It improves drilling accuracy and stability, reduces drilling deviation, enhances the overall stability of the device when drilling deep holes, and improves sampling efficiency.
Smart Images

Figure CN223856767U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of detection and sampling technology, specifically a municipal road safety detection device. Background Technology
[0002] Municipal roads connect all areas of a city, serving as transportation routes and pedestrian access within the city. They facilitate residents' lives, work, and cultural and recreational activities, and connect with roads outside the city, bearing the burden of external transportation. Before construction, municipal roads require staff to use sampling devices for municipal road engineering testing to sample and test the roadbed, thereby improving construction quality.
[0003] A road inspection drilling and sampling device, disclosed in CN221325951U, includes a sampling base and a sampling drill bit. An L-shaped support frame is fixedly connected to one side of the upper end of the sampling base. A guide stabilizing rod is fixedly connected between the sampling base and the L-shaped support frame. A protective stabilizing mechanism is positioned and installed on one side of the upper end of the sampling base. A push handle is fixedly connected to the rear end of the L-shaped support frame. A cylinder is fixedly connected to the upper end of the L-shaped support frame. Through the set disassembly and assembly mechanism, the connecting rod and the sampling drill bit can be quickly disassembled, facilitating later replacement and maintenance. One end of the semi-circular locking block and one end of the support connecting block are movable through a hinge, and the other end is inserted into the inside of the slot through an insert block. The positioning block is locked into the inside of the positioning slot for positioning, wrapping the sampling drill bit inside, which can enhance stability during sampling.
[0004] However, the patent still has the following problems in actual use: During road drilling and sampling, as the drilling depth increases, the lateral constraint force of the surrounding soil and rock usually decreases, which may make the hole wall more prone to collapse or deformation. Existing drilling and sampling devices usually use a fixed structure to maintain the drilling stability of the device, which is not convenient to enhance the drilling stability and the overall stability of the device according to the drilling depth. When drilling deep holes, the drill bit may still deviate or the device may shake and become unstable, which may easily cause damage to the drill bit and reduce the efficiency of drilling and sampling.
[0005] Therefore, a municipal road safety detection device was proposed to solve the aforementioned problems. Utility Model Content
[0006] The purpose of this utility model is to provide a municipal road safety inspection device to solve the problem that existing drilling sampling devices are not convenient for enhancing the stability of drilling and the overall stability of the device according to the drilling depth. When drilling deep holes, the drill bit may still deviate or the device may shake and become unstable, which reduces the drilling sampling efficiency.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a municipal road safety inspection device, comprising a base plate and casters fixedly installed around the bottom of the base plate, a support plate fixedly connected to one side of the top of the base plate, and a top plate fixedly connected to the top of the support plate;
[0008] Also includes:
[0009] A sampling component is provided on the other side of the top of the base plate, an auxiliary component is provided in the middle of the top of the base plate, and a clearance groove is also provided on the other side of the top of the base plate.
[0010] The sampling component includes a servo motor fixedly installed on the top of the top plate. The output end of the servo motor is fixedly connected to a lead screw through the top plate. A lower plate is fixedly connected to the inner wall of the clearance groove near the support plate. The lead screw is rotatably connected to the lower plate. A movable plate is slidably installed on the outer side of the lead screw.
[0011] A drive motor is fixedly installed on the top of the moving plate. A sampling drill bit is installed through the output end of the drive motor through the moving plate. An outer cylinder is sleeved on the outside of the sampling drill bit. A diagonal rod is rotatably installed on the outside of the outer cylinder.
[0012] Preferably, a push rod is fixedly connected to the outer side of the top plate, two fixed cylinders are fixedly connected to the top center of the bottom plate, and sliding sleeves are fixedly connected to the outer front and back sides of the movable plate. The sliding sleeves are sleeved on the outer side of the fixed cylinders and are slidably connected to the fixed cylinders. A fixed plate is fixedly connected to the bottom side of the movable plate, and the output end of the drive motor passes through the fixed plate and is fixedly connected to the sampling drill bit.
[0013] Preferably, the outer cylinder is threadedly fixed to the fixed plate, and the bottom of the movable plate is also fixedly connected to the lower cylinder, which is sleeved on the outside of the lead screw.
[0014] Preferably, a clamping plate is fixedly connected to the side of the lower cylinder near the outer cylinder, the clamping plate abuts against the outer cylinder, and mounting blocks are symmetrically fixedly connected to the outer side of the outer cylinder, and the diagonal rod is rotatably installed between the inner sides of two adjacent mounting blocks.
[0015] Preferably, a contact rod is fixedly connected to the bottom end of the inclined rod, a spring is fixedly connected between the inclined rod and the outer cylinder, a conical platform is fixedly connected to the side of the lower plate away from the support plate, and the outer cylinder is slidably connected to the conical platform.
[0016] Preferably, the auxiliary component includes a threaded sleeve threaded to the outside of the lead screw, the thread direction of the inner wall of the threaded sleeve being opposite to the thread direction inside the moving plate, two side rods being symmetrically fixedly connected to the outside of the threaded sleeve, a strip groove being provided on the upper part of the fixed cylinder near the lead screw, the side rods being slidably connected to the strip groove, and an inner rod being slidably connected inside the fixed cylinder, the top end of the inner rod being fixedly connected to the bottom end of the side rods.
[0017] Preferably, an adsorption cylinder is fixedly connected to the bottom of the base plate, the inner rod is slidably connected to the adsorption cylinder, and a piston is fixedly connected to the bottom end of the inner rod, the piston being slidably connected to the adsorption cylinder.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up sampling components and auxiliary components, the lower the height of the outer cylinder descent, the deeper the drilling depth of the sampling drill bit, and the larger the opening angle of the contact rod, thereby increasing the stability of the sampling drill bit, reducing drilling deviation, and improving drilling accuracy. At the same time, the adsorption cylinder stably adsorbs the road surface, further improving the overall stability of the device during drilling and sampling. The specific details are as follows:
[0019] By setting up the sampling assembly, the operator pushes the push rod, which moves the device to the sampling position on the road surface and locks the caster wheel. Then, the servo motor and drive motor are started. The servo motor drives the lead screw to rotate, and the fixed cylinder limits the sliding sleeve and the moving plate. The rotation of the lead screw causes the moving plate and sliding sleeve to descend. The moving plate drives the sampling drill bit and the outer cylinder to descend. The drive motor drives the sampling drill bit to rotate. The sampling drill bit descends and rotates while sampling. The outer cylinder also drives the mounting block to descend. The mounting block drives the inclined rod and contact rod to descend. The contact rod contacts the road surface. The inclined rod is squeezed by the conical platform as it descends and rotates outward. At the same time, the inclined rod stretches the spring. The spring force causes the contact rod to press against the road surface. As the outer cylinder descends, the sampling drill bit drills deeper and the contact rod opens at a larger angle, which makes the sampling drill bit more stable, reduces the drilling deviation of the sampling drill bit, and improves the drilling accuracy.
[0020] By setting auxiliary components, the screw rotation also drives the threaded sleeve to rise, which in turn drives the side rod to rise. The side rod rises inside the strip groove, which in turn drives the inner rod to rise. The inner rod slides inside the fixed cylinder, and the inner rod also drives the piston to rise. The adsorption cylinder adheres to the road surface. At this time, the piston rises, which increases the volume inside the adsorption cylinder and below the piston, reducing the pressure and keeping the adsorption cylinder stably adsorbing the road surface. This improves the overall stability of the device during drilling and sampling, and also helps to improve the stability of drilling. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the first three-dimensional overall structure of the present invention;
[0022] Figure 2 This is a schematic diagram of the second three-dimensional integral structure of the present invention;
[0023] Figure 3 This is a schematic diagram of the sliding sleeve structure of this utility model;
[0024] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;
[0025] Figure 5 This is a schematic diagram of the movable plate structure of this utility model;
[0026] Figure 6 This is a cross-sectional view of the fixed cylinder structure of this utility model;
[0027] Figure 7 This utility model Figure 6 Enlarged structural diagram at point B.
[0028] In the diagram: 1. Base plate; 2. Casters; 3. Support plate; 4. Top plate; 5. Sampling assembly; 51. Servo motor; 52. Lower plate; 53. Lead screw; 54. Fixed cylinder; 55. Moving plate; 56. Sliding sleeve; 57. Drive motor; 58. Fixed plate; 59. Sampling drill bit; 510. Outer cylinder; 511. Lower cylinder; 512. Clamping plate; 513. Mounting block; 514. Diagonal rod; 515. Contact rod; 516. Spring; 517. Conical platform; 6. Auxiliary assembly; 61. Strip groove; 62. Threaded sleeve; 63. Side rod; 64. Inner rod; 65. Adsorption cylinder; 66. Piston part; 7. Relief groove; 8. Push rod. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Please see Figure 1 - Figure 7 The present invention provides a technical solution: a municipal road safety detection device, including a base plate 1 and casters 2 fixedly installed around the bottom of the base plate 1. A support plate 3 is fixedly connected to one side of the top of the base plate 1, and a top plate 4 is fixedly connected to the top of the support plate 3.
[0031] A sampling component 5 is provided on the other side of the top of the base plate 1, and a clearance groove 7 is also provided on the other side of the top of the base plate 1.
[0032] The sampling component 5 includes a servo motor 51 fixedly installed on the top of the top plate 4. The output end of the servo motor 51 is fixedly connected to a lead screw 53 through the top plate 4. A lower plate 52 is fixedly connected to the inner wall of the clearance groove 7 near the support plate 3. The lead screw 53 is rotatably connected to the lower plate 52. A movable plate 55 is slidably installed on the outer side of the lead screw 53.
[0033] A drive motor 57 is fixedly installed on the top of the moving plate 55. A sampling drill bit 59 is installed through the output end of the drive motor 57 and passes through the moving plate 55. An outer cylinder 510 is sleeved on the outside of the sampling drill bit 59. A diagonal rod 514 is rotatably installed on the outside of the outer cylinder 510.
[0034] A push rod 8 is fixedly connected to the outer side of the top plate 4. Two fixed cylinders 54 are fixedly connected to the top center of the bottom plate 1. Sliding sleeves 56 are fixedly connected to the front and back sides of the movable plate 55. The sliding sleeves 56 are sleeved on the outside of the fixed cylinders 54 and are slidably connected to the fixed cylinders 54. A fixed plate 58 is fixedly connected to the bottom side of the movable plate 55. The output end of the drive motor 57 passes through the fixed plate 58 and is fixedly connected to the sampling drill bit 59.
[0035] The outer cylinder 510 is threadedly fixed to the fixed plate 58, and the bottom of the movable plate 55 is also fixedly connected to the lower cylinder 511, which is sleeved on the outside of the lead screw 53.
[0036] A clamping plate 512 is fixedly connected to the side of the lower cylinder 511 near the outer cylinder 510. The clamping plate 512 abuts against the outer cylinder 510. Mounting blocks 513 are symmetrically fixedly connected to the outer side of the outer cylinder 510. The diagonal rod 514 is rotatably installed between the inner sides of two adjacent mounting blocks 513.
[0037] A contact rod 515 is fixedly connected to the bottom end of the inclined rod 514, and a spring 516 is fixedly connected between the inclined rod 514 and the outer cylinder 510. A conical platform 517 is fixedly connected to the side of the lower plate 52 away from the support plate 3, and the outer cylinder 510 is slidably connected to the conical platform 517.
[0038] The operator pushes the push rod 8, which moves the device to the sampling position on the road surface and locks the caster wheel 2. Then, the servo motor 51 and drive motor 57 are started. The servo motor 51 drives the lead screw 53 to rotate. The fixed cylinder 54 limits the sliding sleeve 56 and the moving plate 55. The rotation of the lead screw 53 causes the moving plate 55 and the sliding sleeve 56 to descend. The moving plate 55 drives the sampling drill bit 59 and the outer cylinder 510 to descend. The drive motor 57 drives the sampling drill bit 59 to rotate. The sampling drill bit 59 descends and rotates while sampling.
[0039] Furthermore, the outer cylinder 510 will also cause the mounting block 513 to descend, and the mounting block 513 will cause the inclined rod 514 and the contact rod 515 to descend. The contact rod 515 will contact the road surface, and the inclined rod 514 will be squeezed by the conical platform 517 as it descends, causing it to rotate outward. At the same time, the inclined rod 514 will stretch the spring 516, and the elastic force of the spring 516 will cause the contact rod 515 to press against the road surface. As the height of the outer cylinder 510 descends, the drilling depth of the sampling drill bit 59 will be deeper, and the opening angle of the contact rod 515 will be larger, which will make the stability of the sampling drill bit 59 higher, reduce the drilling deviation of the sampling drill bit 59, and improve the drilling accuracy.
[0040] An auxiliary component 6 is provided at the top center of the base plate 1. The auxiliary component 6 includes a threaded sleeve 62 that is threaded to the outside of the lead screw 53. The thread direction of the inner wall of the threaded sleeve 62 is opposite to the thread direction inside the moving plate 55. Two side rods 63 are symmetrically fixedly connected to the outside of the threaded sleeve 62. A strip groove 61 is provided on the upper part of the fixed cylinder 54 near the lead screw 53. The side rods 63 are slidably connected to the strip groove 61. An inner rod 64 is slidably connected inside the fixed cylinder 54. The top end of the inner rod 64 is fixedly connected to the bottom end of the side rods 63.
[0041] As the lead screw 53 rotates, it also drives the threaded sleeve 62 to rise, which in turn drives the side rod 63 to rise. The side rod 63 rises inside the strip groove 61, and the side rod 63 drives the inner rod 64 to rise. The inner rod 64 slides inside the fixed cylinder 54.
[0042] The inner rod 64 also drives the piston 66 to rise, and the adsorption cylinder 65 adsorbs onto the road surface. At this time, the piston 66 rises, which increases the volume inside the adsorption cylinder 65 and below the piston 66, and reduces the pressure. This keeps the adsorption cylinder 65 adsorbing onto the road surface stably, thereby improving the overall stability of the device during drilling and sampling, and also improving the stability of the drilling.
[0043] An adsorption cylinder 65 is fixedly connected to the bottom of the base plate 1. The inner rod 64 is slidably connected to the adsorption cylinder 65. A piston part 66 is fixedly connected to the bottom end of the inner rod 64. The piston part 66 is slidably connected to the adsorption cylinder 65.
[0044] Working principle:
[0045] Before using this type of municipal road safety detection device, it is necessary to check the overall condition of the device to ensure that it can function properly. Figure 1 - Figure 7As shown, the operator pushes the push rod 8, which moves the device to the sampling position on the road surface. The servo motor 51 and drive motor 57 are activated, and the sampling drill bit 59 descends and rotates while sampling. Simultaneously, the outer cylinder 510 causes the mounting block 513 to descend, which in turn causes the inclined rod 514 and contact rod 515 to descend. The contact rod 515 contacts the road surface, and the descending inclined rod 514, compressed by the conical platform 517, rotates outward. At the same time, the inclined rod 514 stretches the spring 516, and the spring force of the spring 516 causes the contact rod 515 to press firmly against the road surface. As the outer cylinder 510 descends, the sampling drill bit 59 drills... The deeper the hole and the larger the opening angle of the contact rod 515, the higher the stability of the sampling drill bit 59. While the lead screw 53 rotates, it also drives the threaded sleeve 62 to rise. The threaded sleeve 62 drives the side rod 63 to rise. The side rod 63 rises inside the strip groove 61. The side rod 63 drives the inner rod 64 to rise. The inner rod 64 slides inside the fixed cylinder 54. The inner rod 64 also drives the piston part 66 to rise. The adsorption cylinder 65 adsorbs the road surface. At this time, the piston part 66 rises, which increases the volume inside the adsorption cylinder 65 and the lower part of the piston part 66, and reduces the pressure, keeping the adsorption cylinder 65 stably adsorbing the road surface.
[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A municipal road safety detection device, comprising a bottom plate (1) and a universal wheel (2) fixedly installed around the bottom of the bottom plate (1), one side of the top of the bottom plate (1) is fixedly connected with a supporting plate (3), and the top of the supporting plate (3) is fixedly connected with a top plate (4); characterized in that Further comprising: The other side of the top of the bottom plate (1) is provided with a sampling assembly (5), and the middle of the top of the bottom plate (1) is provided with an auxiliary assembly (6), and the other side of the top of the bottom plate (1) is also provided with a gap slot (7); Wherein, the sampling assembly (5) comprises a servo motor (51) fixedly installed on the top of the top plate (4), the output end of the servo motor (51) is fixedly connected with a lead screw (53) penetrating through the top plate (4), the inner wall of one side of the gap slot (7) close to the supporting plate (3) is fixedly connected with a lower plate (52), the lead screw (53) is rotatably connected with the lower plate (52), and the outer side of the lead screw (53) is slidably connected with a moving plate (55); The top of the moving plate (55) is fixedly connected with a driving motor (57), the output end of the driving motor (57) is provided with a sampling drill bit (59) penetrating through the moving plate (55), the outer side of the sampling drill bit (59) is sleeved with an outer cylinder (510), and the outer side of the outer cylinder (510) is rotatably connected with an inclined rod (514).
2. The municipal road safety detection device according to claim 1, characterized in that: The outer side of the top plate (4) is also fixedly connected with a push rod (8), the top of the bottom plate (1) is fixedly connected with two fixed cylinders (54), the front and back sides of the outer side of the moving plate (55) are fixedly connected with a sliding sleeve (56), the sliding sleeve (56) is sleeved on the outer side of the fixed cylinder (54), the sliding sleeve (56) is slidably connected with the fixed cylinder (54), one side of the bottom of the moving plate (55) is fixedly connected with a fixed disc (58), and the output end of the driving motor (57) is fixedly connected with the sampling drill bit (59) penetrating through the fixed disc (58).
3. The municipal road safety detection device according to claim 2, characterized in that: The outer cylinder (510) and the fixed disc (58) are threadedly fixedly installed, and the bottom of the moving plate (55) is also fixedly connected with a lower cylinder (511), and the lower cylinder (511) is sleeved on the outer side of the lead screw (53).
4. The municipal road safety detection device according to claim 3, characterized in that: One side of the lower cylinder (511) close to the outer cylinder (510) is fixedly connected with an abutting plate (512), the abutting plate (512) is in abutting connection with the outer cylinder (510), the outer side of the outer cylinder (510) is fixedly connected with a mounting block (513) in a symmetrical manner, and the inclined rod (514) is rotatably installed between the inner sides of two adjacent mounting blocks (513).
5. The municipal road safety detection device according to claim 4, characterized in that: The bottom end of the inclined rod (514) is fixedly connected with a contact rod (515), the inclined rod (514) and the outer cylinder (510) are fixedly connected with a spring (516), one side of the lower plate (52) away from the supporting plate (3) is fixedly connected with a conical table (517), and the outer cylinder (510) is slidably connected with the conical table (517).
6. The municipal road safety detection device according to claim 2, characterized in that: The auxiliary assembly (6) comprises a threaded sleeve (62) which is screwed outside a lead screw (53), the threaded sleeve (62) is opposite to the threaded direction inside the moving plate (55), the outer side of the threaded sleeve (62) is fixedly connected with two side rods (63) in a symmetrical manner, the upper part of the fixed cylinder (54) is provided with a strip-shaped slot (61) near one side of the lead screw (53), the side rod (63) is slidably connected with the strip-shaped slot (61), and the inside of the fixed cylinder (54) is slidably connected with an inner rod (64), and the top end of the inner rod (64) is fixedly connected with the bottom of the side rod (63).
7. The municipal road safety detection device according to claim 6, characterized in that: The bottom of the bottom plate (1) is also fixedly connected with a suction cylinder (65), the inner rod (64) is slidably connected with the suction cylinder (65), the bottom end of the inner rod (64) is fixedly connected with a piston part (66), and the piston part (66) is slidably connected with the suction cylinder (65).
Citation Information
Patent Citations
Drilling and sampling device for road detection
CN221325951U