A road smoothness detection auxiliary bracket

Abstract

This utility model discloses an auxiliary support for road smoothness testing, including a tripod and an auxiliary support mechanism installed on top of the tripod. The auxiliary support mechanism includes: a U-shaped support connected to the top of the tripod; and a ball sleeve embedded and fixed to the top of the U-shaped support, with openings at both the top and bottom. A universal ball is movably fitted inside the ball, and a circular groove is formed at the top of the universal ball. This utility model, through a series of structures, facilitates convenient and quick pre-leveling of the U-shaped carrier plate in the blind groove. After leveling, it provides fixed support for the level or other instruments used for road smoothness testing that require tripod support. This eliminates the need for personnel to adjust the legs and make individual observations, improving the convenience and efficiency of leveling. Furthermore, it allows for convenient and quick adjustment of the instrument's orientation by simply pushing and rotating it when in use, eliminating the need to move and rotate the entire support and readjust the level, thus improving ease of use.

Description

Technical Field

[0001] This utility model relates to the field of testing instrument bracket technology, specifically an auxiliary bracket for road smoothness testing. Background Technology

[0002] During road construction, a level is needed to check the height of the side formwork during installation to ensure that the formwork is installed flat. Flat formwork is a crucial prerequisite for a smooth road surface after pouring and paving, preventing unevenness or significant differences in formwork height that could compromise road surface flatness. A tripod is required for supporting the level, and it is also necessary for subsequent flatness testing using a slope meter or flatness tester. Tripods are common auxiliary supports for these road surface flatness testing instruments. However, the current method of directly using tripods for auxiliary support has the following shortcomings:

[0003] 1. Because leveling instruments and other testing instruments require a horizontal support base, although tripods can be used to level the upper instrument when the ground is tilted by adjusting each leg individually, this requires individual adjustment of each leg and observation and judgment by personnel, lacking a convenient and quick leveling mechanism for blind operation, resulting in poor convenience and efficiency in leveling; 2. There is a lack of a mechanism for conveniently and quickly adjusting the testing orientation of the instrument when the support is erected, requiring the entire support to be moved and rotated before re-leveling, which is inconvenient when changing the testing orientation; In view of this, this application proposes an auxiliary support for road smoothness testing to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary support for road smoothness detection to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a road smoothness testing auxiliary support, comprising a tripod and an auxiliary support mechanism mounted on top of the tripod, wherein the auxiliary support mechanism includes:

[0006] A U-shaped support is attached to the top of the tripod;

[0007] The ball sleeve is fitted and fixed to the top of the U-shaped support. Both its top and bottom are open, and a universal ball is movably fitted inside it. A circular groove is opened on the top of the universal ball.

[0008] The threaded clamping assembly is threadedly fitted into the top left side of the U-shaped support and presses against the left side of the universal ball; the threaded clamping assembly is used to lock or unlock the universal ball.

[0009] The rotating shaft is rotatably fitted into a circular groove;

[0010] The spring-loaded locking rotary drive assembly is installed in a circular groove and slidably embedded in the bottom end of the rotating shaft. Its bottom end extends movably to the bottom of the universal ball and is fixedly connected to a counterweight.

[0011] The instrument support clamping assembly is fixedly connected to the top of the rotating shaft; the spring-loaded locking rotary drive assembly is used to cooperate with the gravity of the counterweight to spring-load the rotating shaft for rotation, and is also used to unlock and drive the rotating shaft to rotate when the personnel move up and rotate the counterweight, so that the personnel can easily rotate and adjust the orientation and lock the instrument support clamping assembly during use; the counterweight is set to adaptively drive the universal ball to rotate when it is not locked and the entire device is tilted, so as to achieve the automatic rotation of the instrument support clamping assembly to the horizontal through the rotating shaft, so as to achieve the effect of convenient and quick adjustment of the blind groove; the instrument support clamping assembly is used to fix and support instruments such as levels used for road flatness testing.

[0012] Preferably, the U-shaped support is bonded to the top of the tripod using 3M strong double-sided adhesive.

[0013] Preferably, the U-shaped support is detachably connected to the top of the tripod. The bottom of the U-shaped support has four slots in a ring shape. A strong magnet is fixedly connected to the inner wall of the top of the slots. The top of the tripod has four iron blocks fixedly connected in a ring shape. The iron blocks are movably locked in the corresponding slots and attracted to the strong magnets.

[0014] Preferably, the threaded fastening assembly includes a long-shank T-shaped screw and an anti-slip rubber block. A threaded hole is provided on the top left side of the U-shaped support. The long-shank T-shaped screw is threaded into the threaded hole. A circular through hole is provided on the left side of the ball sleeve, which is movably fitted onto the outside of the long-shank T-shaped screw. The anti-slip rubber block is bonded and fixed to the right end of the long-shank T-shaped screw, and the anti-slip rubber block is pressed tightly against the left side of the universal ball.

[0015] Preferably, the spring-loaded locking rotary drive assembly includes a square guide rod, a compression spring, a pressure plate, and an annular hard anti-slip pad. A square groove is provided at the bottom of the rotating shaft, and the square guide rod is slidably fitted inside the square groove. The annular hard anti-slip pad is bonded and fixed to the inner wall of the bottom of the circular groove. The pressure plate is fixedly fitted on the square guide rod. The bottom of the pressure plate has multiple conical protrusions integrally arranged in annular shape at equal intervals. The multiple conical protrusions are pressed tightly against the top of the annular hard anti-slip pad. The compression spring is in a compressed state and is fixedly connected between the top of the pressure plate and the bottom of the rotating shaft. The compression spring is movably fitted on the square guide rod, and the bottom end of the square guide rod movably extends below the universal ball and is fixedly connected to the top of the counterweight.

[0016] Preferably, the detector support clamping assembly includes a U-shaped carrier plate, four knob bolts, and four clamping blocks. The U-shaped carrier plate is fixedly connected to the top of the rotating shaft. Two threaded through holes are opened on the inner walls of both sides of the U-shaped carrier plate. The four knob bolts are respectively threaded into the corresponding threaded through holes. The sides of the four knob bolts that are close to each other are fixedly connected to the corresponding clamping blocks. Anti-slip rubber blocks are glued and fixed to the sides of the four clamping blocks that are close to each other.

[0017] Preferably, the weight of the detector support clamping assembly is less than the weight of the counterweight.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. By using a tripod, U-shaped support, ball sleeve, universal ball, threaded clamping assembly, rotating shaft, spring-loaded locking rotary drive assembly, instrument support clamping assembly and counterweight, the U-shaped carrier plate can be pre-leveled quickly and easily in the blind groove. After leveling, the level used for road flatness testing or other instruments that require tripod support can be fixedly supported. This eliminates the need for personnel to adjust the legs and make observations one by one, achieving the effect of quick and convenient blind groove adjustment and support application, and improving the convenience and efficiency of leveling.

[0020] 2. Through the combination of the rotating shaft, spring-loaded locking rotary drive assembly, detector support clamping assembly and counterweight, the instrument can be easily and quickly rotated and its detection orientation adjusted by simply pushing and rotating when the support frame is in use. There is no need to move the entire support frame and readjust the level, which improves the ease of use.

[0021] 3. By using a different design for the U-shaped support, tripod, slot, strong magnet, and iron block, it is easy to assemble and disassemble the tripod and auxiliary support mechanism, which facilitates subsequent disassembly, transportation, and carrying, and improves the flexibility of use.

[0022] This utility model features a series of structures that facilitate quick and easy pre-leveling of the U-shaped carrier plate in the blind groove. After leveling, it securely supports the level used for road smoothness testing or other instruments that require tripod support. This eliminates the need for personnel to adjust the legs and make individual judgments, improving the convenience and efficiency of leveling. Furthermore, when the support is in use, the instrument can be easily and quickly rotated and its testing orientation adjusted by simply pushing and rotating it. This eliminates the need to move the entire support and readjust the level, further enhancing ease of use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an auxiliary support for road smoothness detection proposed in this utility model;

[0024] Figure 2This is a three-dimensional structural diagram of the auxiliary support mechanism for a road smoothness detection auxiliary support proposed in this utility model;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure viewed from below;

[0026] Figure 4 This is a schematic diagram of the front sectional view of an auxiliary support for road smoothness detection proposed in this utility model;

[0027] Figure 5 for Figure 4 A magnified structural diagram of part A in the diagram.

[0028] In the diagram: 1. Tripod; 101. Iron clamp; 2. U-shaped support; 201. U-shaped carrier plate; 2011. Knob bolt; 2012. Clamping block; 202. Ball sleeve; 2021. Universal ball; 2022. Circular groove; 2023. Long-handled T-shaped screw; 2024. Anti-slip rubber block; 203. Rotating shaft; 2031. Square guide rod; 2032. Pressure plate; 2033. Annular hard anti-slip rubber pad; 2034. Compression spring; 204. Counterweight. 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] Example 1

[0031] like Figures 1 to 5 As shown, this embodiment proposes a road smoothness testing auxiliary support, including a tripod 1 and an auxiliary support mechanism installed on top of the tripod 1. The auxiliary support mechanism includes:

[0032] The U-shaped support 2 is connected to the top of the tripod 1;

[0033] The ball sleeve 202 is embedded and fixed on the top of the U-shaped support 2. Both its top and bottom are set as openings. The universal ball 2021 is movably sleeved inside it. The top of the universal ball 2021 is provided with a circular groove 2022.

[0034] The threaded clamping assembly is threadedly fitted into the top left side of the U-shaped support 2 and presses against the left side of the universal ball 2021; the threaded clamping assembly is used to lock or unlock the universal ball 2021.

[0035] The rotating shaft 203 is rotatably fitted inside the circular groove 2022;

[0036] The spring-loaded locking rotary drive assembly is installed in the circular groove 2022 and slidably embedded in the bottom end of the rotating shaft 203. Its bottom end extends movably to the bottom of the universal ball 2021 and is fixedly connected to the counterweight block 204.

[0037] The instrument support clamping assembly is fixedly connected to the top of the rotating shaft 203; the spring-loaded locking rotary drive assembly is used to cooperate with the gravity of the counterweight 204 to spring-load and lock the rotating shaft 203, and is also used to unlock and drive the rotating shaft 203 to rotate when the personnel move up and rotate the counterweight 204, so that the personnel can easily adjust the orientation and lock the instrument support clamping assembly during use; the counterweight 204 is set to adaptively drive the universal ball 2021 to rotate when the universal ball 2021 is not locked and the entire device is tilted, so as to achieve the automatic rotation of the instrument support clamping assembly to the horizontal through the rotating shaft 203, so as to achieve the effect of convenient and quick adjustment of the blind groove; the instrument support clamping assembly is used to fix and support instruments such as the level used for road flatness testing;

[0038] In this embodiment, two bearings are fixedly fitted inside the circular groove 2022, and the inner ring of the bearing is fixedly fitted to the outer side of the rotating shaft 203, so as to achieve the effect of rotating the rotating shaft 203; the top of the U-shaped support 2 is provided with an insert hole for fixed connection with the outer side of the ball sleeve 202.

[0039] Furthermore, the U-shaped support 2 is firmly attached to the top of the tripod 1 using 3M strong double-sided adhesive.

[0040] Furthermore, such as Figure 2 , 4 As shown in Figure 5, the threaded fastening assembly includes a long-handled T-shaped screw 2023 and an anti-slip rubber block 2024. A threaded hole is provided on the top left side of the U-shaped support 2. The long-handled T-shaped screw 2023 is threadedly fitted into the threaded hole. A circular through hole is provided on the left side of the ball sleeve 202, which is movably fitted onto the outside of the long-handled T-shaped screw 2023. The anti-slip rubber block 2024 is bonded and fixed to the right end of the long-handled T-shaped screw 2023. The anti-slip rubber block 2024 is pressed tightly against the left side of the universal ball 2021.

[0041] In this embodiment, the long-handled T-shaped screw 2023 and the anti-slip rubber block 2024 work together. By rotating the long-handled T-shaped screw 2023 in the opposite direction, it rotates within the threaded hole and moves to the left, causing the anti-slip rubber block 2024 to unlock the universal ball 2021 to the left. When the long-handled T-shaped screw 2023 is rotated in the forward direction, the anti-slip rubber block 2024 is driven to squeeze and lock the universal ball 2021 to the right, thus achieving the effect of conveniently unlocking or locking the universal ball 2021.

[0042] Furthermore, such as Figure 4 and 5As shown, the spring-loaded locking rotary drive assembly includes a square guide rod 2031, a compression spring 2034, a pressure plate 2032, and an annular hard anti-slip pad 2033. The bottom end of the rotating shaft 203 has a square sliding groove, and the square guide rod 2031 is slidably sleeved in the square sliding groove. The annular hard anti-slip pad 2033 is bonded and fixed to the inner wall of the bottom of the circular groove 2022. The pressure plate 2032 is fixedly sleeved on the square guide rod 2031. The bottom of the pressure plate 2032 has multiple conical protrusions integrally arranged in an annular shape at equal intervals. The multiple conical protrusions are pressed tightly against the top of the annular hard anti-slip pad 2033. The compression spring 2034 is in a compressed state and is fixedly connected between the top of the pressure plate 2032 and the bottom end of the rotating shaft 203. The compression spring 2034 is movably sleeved on the square guide rod 2031. The bottom end of the square guide rod 2031 movably extends to the bottom of the universal ball 2021 and is fixedly connected to the top of the counterweight block 204.

[0043] In this embodiment, a through hole is provided on the bottom inner wall of the circular groove 2022, and the square guide rod 2031 is located in the through hole and does not contact its inner side, so as to allow the square guide rod 2031 to move through; the top of the pressure plate 2032 is provided with a fitting hole for fixed connection with the outer side of the square guide rod 2031.

[0044] In this embodiment, the square guide rod 2031, compression spring 2034, pressure plate 2032, and annular hard anti-slip pad 2033 work together. The elastic force of the compression spring 2034 tightens the conical protrusion on the pressure plate 2032 downwards onto the top of the annular hard anti-slip pad 2033. The weight of the counterweight 204 presses the pressure plate 2032 down through the square guide rod 2031, further ensuring that it is tightly pressed against the annular hard anti-slip pad 2033. Under the combined action of the elastic tension and the downward weight, the conical protrusion on the pressure plate 2032... The raised structure and the annular hard anti-slip rubber pad 2033 are effectively squeezed together. Under the squeezing friction between the two, the pressure plate 2032 is locked, which in turn locks the square guide rod 2031. Utilizing the angular engagement characteristic of the square guide rod 2031 and the square slide groove, the rotation of the rotating shaft 203 is restricted. When subsequent adjustments are needed, the counterweight 204 is pushed upwards and rotated. The counterweight 204 drives the square guide rod 2031 to move upwards and rotate. The square guide rod 2031 then drives the pressure plate 2032 and the annular hard anti-slip rubber pad 203 to engage. 3. Separation and compression of the compression spring 2034 release the lock. When the square guide rod 2031 rotates, it also drives the pressure plate 2032 to rotate. At the same time, the square guide rod 2031 drives the rotating shaft 203 to rotate through the inner edge of the square slide groove, realizing the effect of unlocking and adjusting the rotating shaft 203. This facilitates the unlocking and adjustment of the detector support clamping assembly during use. After adjustment, when the upward thrust is released, the weight of the counterweight 204 and the elasticity of the compression spring 2034 drive the pressure plate 2032 downward to squeeze it tightly against the annular hard anti-slip rubber pad 2033. The device performs a grinding and locking anti-rotation operation, achieving a convenient and quick locking effect on the rotating shaft 203 when the rotation is loosened or unlocked. In addition, when the universal ball 2021 is unlocked or not locked, and the device tilts as a whole due to the inclination of the ground, the counterweight 204 automatically rotates downward to the vertical under its own weight. Then, through the square guide rod 2031 and the rotating shaft 203, it drives the universal ball 2021 to rotate adaptively within the ball sleeve 202. The rotating shaft 203 drives the detection instrument support clamping assembly to automatically rotate to the horizontal, achieving a convenient and quick leveling effect for the blind groove.

[0045] Furthermore, such as Figure 2 and 4 As shown, the testing instrument support clamping assembly includes a U-shaped carrier plate 201, four knob bolts 2011, and four clamping blocks 2012. The U-shaped carrier plate 201 is fixedly connected to the top of the rotating shaft 203. Two threaded through holes are opened on both sides of the inner wall of the U-shaped carrier plate 201. The four knob bolts 2011 are respectively threaded into the corresponding threaded through holes. The sides of the four knob bolts 2011 that are close to each other are fixedly connected to the corresponding clamping blocks 2012. Anti-slip rubber blocks are glued and fixed on the sides of the four clamping blocks 2012 that are close to each other.

[0046] In this embodiment, the U-shaped carrier plate 201, four knob bolts 2011, four clamping blocks 2012, and four anti-slip rubber blocks work together to place a level or other instrument used for road smoothness testing that requires tripod support inside the U-shaped carrier plate 201. Rotating the four knob bolts 2011 clockwise causes them to rotate and move laterally within their corresponding threaded holes. The knob bolts 2011 then move the corresponding clamping blocks 2012 closer to the instrument. The four clamping blocks 2012 then clamp the corresponding anti-slip rubber blocks, thus securing the instrument and achieving the effect of fixing and supporting the level or other instrument used for road smoothness testing that requires tripod support.

[0047] Furthermore, the weight of the detector support clamping assembly is less than the weight of the counterweight 204.

[0048] It should be noted that the ball sleeve 202, universal ball 2021, pivot 203, long-shank T-bolt 2023, square guide rod 2031, pressure plate 2032, U-shaped carrier plate 201, knob bolt 2011 and clamping block 2012 are preferably made of stainless steel. The long-shank T-bolt 2023 and knob bolt 2011 have a high wear-resistant load-bearing specification with an outer thread clearance of 1-2mm. The stainless steel material has the advantages of high hardness, high wear resistance and good maintenance-free effect, which ensures long-term connection and drive support stability.

[0049] Tripod 1 is preferably made of Bosch BT160 aluminum alloy tripod, which is a tripod with excellent overall performance, high stability, and wide legs, which can provide good support for level instruments and other instruments that require tripod support. It also has the advantage of height adjustment.

[0050] This embodiment facilitates the quick and easy pre-leveling of the U-shaped carrier plate 201 in the blind groove, and after leveling, it can be used to fix and support the level or other instruments that require tripod support for road flatness testing. This eliminates the need for personnel to adjust the legs and make observations and judgments one by one, improving the convenience and efficiency of leveling. Furthermore, it allows for easy and quick adjustment of the instrument's orientation by simply pushing and rotating it when the support is in use, without having to move the entire support and readjust the level, thus improving ease of use.

[0051] The usage method of this embodiment is as follows: When using the road flatness detection auxiliary support, after setting up the tripod 1, the entire device will tilt due to the inevitable tilting of the ground. At this time, the operator directly rotates the long-handled T-shaped screw 2023 in the opposite direction to make it rotate in the threaded hole and move to the left. The long-handled T-shaped screw 2023 drives the anti-slip rubber block 2024 to the left to unlock the universal ball 2021. At this time, under the action of gravity, the counterweight block 204 automatically rotates downward to the vertical position under its own weight, and then drives the universal ball 2021 to rotate adaptively in the ball sleeve 202 through the square guide rod 2031 and the rotating shaft 203 in sequence. The rotating shaft 203 drives the U-shaped carrier plate 201 to automatically rotate to the horizontal, realizing the effect of convenient and quick blind groove leveling. Then, rotate the long-handled T-shaped screw 2023 in the forward direction to make it drive the anti-slip rubber block 2024 to the right to squeeze and lock the universal ball 2021 to prevent it from rotating during use.

[0052] After the U-shaped carrier plate 201 is leveled, the level used for road smoothness testing or other instruments that require tripod support are placed inside the U-shaped carrier plate 201. The four knob bolts 2011 are rotated in the forward direction. The knob bolts 2011 rotate and move laterally in the corresponding threaded through holes. The knob bolts 2011 drive the corresponding clamps 2012 to move closer to the instrument. The four clamps 2012 drive the corresponding anti-slip rubber blocks to squeeze and clamp the instrument, thus achieving the effect of fixing and supporting the level used for road smoothness testing or other instruments that require tripod support. Moreover, by pre-leveling the U-shaped carrier plate 201 with a convenient and quick blind groove, it is possible to conveniently fix and support the level or other instruments that require tripod support without the need for personnel to adjust the legs and observe and judge each one, thus improving the convenience and efficiency of leveling.

[0053] When the orientation needs to be changed during subsequent support testing, first push the counterweight 204 upwards and then rotate it. The counterweight 204 drives the square guide rod 2031 to move upwards and rotate. The square guide rod 2031 causes the pressure plate 2032 to separate from the annular hard anti-slip pad 2033 and compresses the compression spring 2034, releasing the lock. When the square guide rod 2031 rotates, it also drives the pressure plate 2032 to rotate. At the same time, the square guide rod 2031 drives the rotating shaft 203 to rotate through the inner edge of the square slide groove. The rotating shaft 203 drives the U-shaped carrier plate 201 to rotate, thereby causing the instrument to rotate and change its orientation. After adjustment, release the upward push. At this time, the weight of the counterweight 204 and the elasticity of the compression spring 2034 drive the pressure plate 2032 downwards and squeeze it tightly against the annular hard anti-slip pad 2033. The conical protrusion structure at the bottom of the pressure plate 2032 rubs against the annular hard anti-slip pad 2033. Under force, the square guide rod 2031 is locked in place. Utilizing the angular fit between the square guide rod 2031 and the square slide groove, the rotation of the shaft 203 is restricted and prevented from rotating. This process locks and prevents rotation of the U-shaped carrier plate 201 and the instrument. The spring force of the compression spring 2034 tightens the conical protrusion on the pressure plate 2032 downwards onto the top of the annular hard anti-slip pad 2033. The weight of the counterweight 204 presses down on the pressure plate 2032 through the square guide rod 2031. Under the combined action of the spring tension and the downward weight, the conical protrusion on the pressure plate 2032 is effectively squeezed against the annular hard anti-slip pad 2033, achieving effective locking. This allows for convenient and quick adjustment of the instrument's rotation and detection orientation by simply pushing and rotating it when the support is erected, eliminating the need to move the entire support and readjust the level, thus improving ease of use.

[0054] Example 2

[0055] like Figures 3 to 4 As shown, this embodiment differs from Embodiment 1 in that: the U-shaped support 2 is detachably connected to the top of the tripod 1, the bottom of the U-shaped support 2 has four slots in a ring shape, and a strong magnet is fixedly connected to the inner wall of the top of the slots. The top of the tripod 1 has four iron blocks 101 fixedly connected in a ring shape, and the iron blocks 101 are movably locked in the corresponding slots and attracted to the strong magnets.

[0056] This embodiment facilitates the subsequent disassembly and assembly of the tripod 1 and the auxiliary support mechanism, making subsequent disassembly, transportation, and carrying easier and improving the flexibility of use.

[0057] The method of use in this embodiment is as follows: The difference from Embodiment 1 is that, based on Embodiment 1, it also has the following functions: By using the set slots, strong magnets and iron blocks 101 in cooperation, the iron blocks 101 are engaged with the corresponding slots, and the strong magnets are attracted to each other, so as to achieve the effect of convenient magnetic connection between the U-shaped support 2 and the tripod 1. When the U-shaped support 2 and the tripod 1 are pulled together by force, the tripod 1 will cause the four iron blocks 101 to separate from the corresponding slots and strong magnets respectively, so as to facilitate the subsequent disassembly and assembly of the tripod 1 and the auxiliary support mechanism, which will facilitate the subsequent disassembly, transportation and carrying work and improve the flexibility of use.

[0058] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A road flatness detection auxiliary support, comprising a tripod (1) and an auxiliary support mechanism installed on the top of the tripod (1), characterized in that: The auxiliary support mechanism includes: The U-shaped support (2) is connected to the top of the tripod (1); The ball sleeve (202) is fitted and fixed on the top of the U-shaped support (2). Its top and bottom are both open. The universal ball (2021) is movably fitted inside it. The top of the universal ball (2021) has a circular groove (2022). The threaded fastening assembly is threadedly fitted into the top left side of the U-shaped support (2) and pressed tightly against the left side of the universal ball (2021); The rotating shaft (203) is rotatably fitted inside the circular groove (2022); The spring-loaded locking rotary drive assembly is installed in the circular groove (2022) and slidably embedded in the bottom end of the rotating shaft (203). Its bottom end extends movably to the bottom of the universal ball (2021) and is fixedly connected to a counterweight (204). The instrument support clamping assembly is fixedly connected to the top of the rotating shaft (203).

2. The road flatness detection auxiliary support according to claim 1, characterized in that: The U-shaped support (2) is bonded to the top of the tripod (1) with 3M strong double-sided adhesive.

3. The road flatness detection auxiliary support according to claim 1, characterized in that: The U-shaped support (2) is detachably connected to the top of the tripod (1). The bottom of the U-shaped support (2) has four slots in a ring shape. A strong magnet is fixedly connected to the inner wall of the top of the slot. The top of the tripod (1) has four iron blocks (101) fixedly connected in a ring shape. The iron blocks (101) are movably locked in the corresponding slots and attracted to the strong magnet.

4. The road flatness detection auxiliary support according to claim 1, characterized in that: The threaded fastening assembly includes a long-shank T-shaped screw (2023) and an anti-slip rubber block (2024). The top left side of the U-shaped support (2) has a threaded hole. The long-shank T-shaped screw (2023) is threaded into the threaded hole. The ball sleeve (202) has a circular through hole on the left side that is movably fitted onto the outside of the long-shank T-shaped screw (2023). The anti-slip rubber block (2024) is bonded and fixed to the right end of the long-shank T-shaped screw (2023). The anti-slip rubber block (2024) is pressed tightly against the left side of the universal ball (2021).

5. The road flatness detection auxiliary support according to claim 1, characterized in that: The spring-loaded locking and rotating drive assembly includes a square guide rod (2031), a compression spring (2034), a pressure plate (2032), and an annular hard anti-slip rubber pad (2033). A square groove is provided at the bottom of the rotating shaft (203). The square guide rod (2031) is slidably fitted within the square groove. The annular hard anti-slip rubber pad (2033) is bonded and fixed to the inner wall of the bottom of the circular groove (2022). The pressure plate (2032) is fixedly fitted onto the square guide rod (2031). The bottom of the pressure plate (2032) is... The ring is integrally set with multiple conical protrusions at equal intervals. The multiple conical protrusions are pressed tightly against the top of the ring hard anti-slip rubber pad (2033). The compression spring (2034) is in a compressed state and is fixedly connected between the top of the pressure plate (2032) and the bottom of the rotating shaft (203). The compression spring (2034) is movably sleeved on the square guide rod (2031). The bottom end of the square guide rod (2031) moves out to the bottom of the universal ball (2021) and is fixedly connected to the top of the counterweight (204).

6. The road flatness detection auxiliary support according to claim 5, characterized in that: The detector support clamping assembly includes a U-shaped carrier plate (201), four knob bolts (2011), and four clamping blocks (2012). The U-shaped carrier plate (201) is fixedly connected to the top of the rotating shaft (203). Two threaded through holes are opened on both sides of the inner wall of the U-shaped carrier plate (201). The four knob bolts (2011) are threaded into the corresponding threaded through holes. The sides of the four knob bolts (2011) that are close to each other are fixedly connected to the corresponding clamping blocks (2012). Anti-slip rubber blocks are glued and fixed on the sides of the four clamping blocks (2012) that are close to each other.

7. The road flatness detection auxiliary support according to claim 6, characterized in that: The weight of the detector support clamping assembly is less than the weight of the counterweight (204).

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