Device for rapidly detecting flatness of padstone

By designing a device for quickly detecting the flatness of the pad stones, and utilizing foldable support legs and a horizontal detection mechanism, the problem of cumbersome and time-consuming traditional detection methods has been solved, achieving efficient and safe pad stone flatness detection and improving the quality of bridge construction.

CN223910204UActive Publication Date: 2026-02-13CHINA FIRST HIGHWAY ENGINEERING CO LTD +1
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Patent Information

Application Number
CN202520723558.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-02-13
Estimated Expiration
2035-04-17

AI Technical Summary

Technical Problem

Traditional methods for testing the flatness of bridge paving stones are cumbersome, time-consuming, and pose safety risks associated with working at heights, making it difficult to meet the high-efficiency construction requirements of bridge construction.

Method used

A device for rapidly detecting the flatness of pad stones was designed, including foldable support legs and a horizontal detection mechanism. The device can be quickly assembled and accurately detected by the extension and limiting components of the support legs. A horizontal bubble meter is used to determine the flatness of the pad stones.

Benefits of technology

The inspection process was simplified, inspection efficiency was improved, the safety of construction personnel was ensured, and the accuracy of the flatness of the foundation stones was guaranteed, providing a high-quality construction foundation for bridge construction.

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Abstract

The utility model relates to the technical field of bridge construction detection equipment, and discloses a device for rapidly detecting the flatness of a padstone, which comprises two transverse rods which are arranged in parallel and are not collinear; foldable supporting legs are arranged at the two ends of the transverse rod, the supporting legs can be parallel to or perpendicular to the transverse rod by folding the supporting legs, and telescopic supporting feet are arranged at the bottoms of the supporting legs; a longitudinal rod is vertically and fixedly connected between the other two supporting legs on the same side; and the two transverse rods and the two longitudinal rods are respectively provided with a horizontal detection mechanism for measuring the length directions of the transverse rods and the longitudinal rods. During detection, the supporting legs are overturned to be in a vertical state and placed on the cushion stone, the extension lengths of the supporting legs are adjusted according to the horizontal detection mechanism, horizontal debugging of the transverse rod and the longitudinal rod is completed, and the extension lengths of the four supporting legs are measured, and if the extension lengths are consistent, the flat stroke of the cushion stone is qualified. Detection can be carried out only by assembling and debugging the device on the ground and placing the device on a padstone, so that the life safety of constructors is effectively guaranteed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to bridge construction detection equipment technical field, especially a device for fast detection of cushion stone flatness. BACKGROUND

[0002] In the field of bridge engineering construction, as a key component supporting the upper structure of the bridge, the flatness of the cushion stone plays a decisive role in the stability and service life of the bridge structure. Precise control of the flatness of the cushion stone is directly related to whether the bridge can uniformly bear the upper load during long-term service and avoid structural damage and safety hazards caused by local stress concentration.

[0003] Currently, the traditional cushion stone flatness detection methods mainly include manual steel wire pulling combined with leveling instrument measurement and measurement with the help of ruler and calipers. However, such methods have many limitations. On the one hand, the operation process is complex and time-consuming, requiring a large amount of manpower and time, resulting in extremely low detection efficiency, which is difficult to meet the efficient construction rhythm of large-scale bridge construction projects; on the other hand, when detecting high cushion stones, workers need to perform delicate operations in high-altitude environments, facing great safety risks, seriously threatening the safety of construction personnel.

[0004] With the continuous development of bridge construction towards large-scale and high-efficiency, there is an urgent need for an innovative cushion stone flatness rapid and accurate detection device to improve the detection efficiency during construction and ensure that the cushion stone construction quality meets high standards, thereby effectively promoting the improvement of overall bridge construction efficiency and the guarantee of engineering quality. SUMMARY

[0005] The utility model aims at providing a device for fast detection of cushion stone flatness to overcome the above-mentioned shortcomings.

[0006] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0007] A device for fast detection of cushion stone flatness, comprising:

[0008] Two horizontal rods arranged in parallel and not in line;

[0009] Both ends of the horizontal rod are provided with foldable support legs, which can be parallel or perpendicular to the horizontal rod by folding the support legs, and the bottom of the support leg is provided with a telescopic support foot;

[0010] Between the other two support legs on the same side, a vertical rod is vertically and fixedly connected; and

[0011] Two horizontal rods and two vertical rods are provided with horizontal detection mechanisms for measuring the length direction.

[0012] Further, further comprising:

[0013] Both ends of the transverse rod are provided with sliding grooves arranged along the length direction of the transverse rod, and sliding rods are correspondingly and slidably connected in the sliding grooves, one end of the sliding rod is connected with the connecting rod, the other end of the connecting rod is hingedly connected with the middle part of the supporting leg, and the top of the supporting leg is hingedly connected with the end of the transverse rod.

[0014] A limiting assembly is arranged on the transverse rod, and the limiting assembly selectively limits the other end of the connecting rod to achieve the vertical arrangement of the transverse rod and the supporting leg.

[0015] Further, the limiting assembly comprises:

[0016] A stop rod is rotationally connected to the middle part of the transverse rod, the rotation axis of the stop rod and the transverse rod is below the sliding groove, and the end of the stop rod close to the supporting leg is upwardly turned to releasably lock the sliding rod on the side of the sliding groove close to the supporting leg, so as to achieve the vertical arrangement of the supporting leg and the transverse rod.

[0017] Further, an elastic member is arranged between the stop rod and the transverse rod, and the elastic member is used to drive the end of the stop rod close to the supporting leg to be upwardly turned.

[0018] Further, the elastic member is a torsion spring, the torsion spring is sleeved on the rotation axis between the stop rod and the transverse rod, one end of the torsion spring is connected with the stop rod, the other end of the torsion spring is connected with the transverse rod, and the torsion spring is used to drive the end of the stop rod away from the supporting leg to be downwardly turned.

[0019] Further, the end of the stop rod away from the supporting leg is downwardly turned under the gravity of the stop rod.

[0020] Further, a threaded sleeve is fixedly installed at the bottom of the supporting leg, the supporting foot comprises a screw rod, the screw rod is threadedly connected with the threaded sleeve, and the screw rod is arranged along the length direction of the supporting leg.

[0021] Further, the supporting foot further comprises a supporting pad, and the lower end of the screw rod is fixedly connected with the supporting pad.

[0022] Further, the horizontal detection mechanism is arranged in the middle of the transverse rod and is used to detect the horizontal information of the transverse rod along the length direction of the transverse rod, and the horizontal detection mechanism is arranged in the middle of the longitudinal rod and is used to detect the horizontal information of the longitudinal rod along the length direction of the longitudinal rod.

[0023] Further, the horizontal detection mechanism is a horizontal bubble instrument.

[0024] Compared with the prior art, the utility model has at least the following advantages:

[0025] During detection, the support legs are turned over to the vertical state and placed on the cushion stone, the extension length of the support legs is adjusted according to the horizontal detection mechanism, the horizontal adjustment of the transverse rod and the longitudinal rod is completed, the extension length of the four support legs is measured, and if the lengths are consistent, it is indicated that the cushion stone is qualified in the horizontal plane.

[0026] The utility model discloses device structure design is reasonable, and the support leg can be folded and is accomodated, and convenient to carry, and the operating personnel need not carry out complicated operation in high altitude. Construction personnel only need to assemble and debug the device on the ground, place on the cushion stone and can carry out detection, effectively guarantee the life safety of construction personnel, and provide powerful guarantee for bridge construction safety.

[0027] The device is provided with the horizontal detection mechanism on the transverse rod and the longitudinal rod, adopts the common and accurate horizontal bubble instrument, can comprehensively detect the horizontal information in the transverse and longitudinal directions, and comprehensively and accurately judges the cushion stone flatness. Whether the cushion stone surface is horizontal is judged by measuring the length of the four support cushion blocks, the device position is detected for many times, the accuracy and reliability of the detection result are ensured, the cushion stone construction quality is effectively guaranteed, and a solid foundation is laid for long-term stable service of the bridge. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0029] Fig. 1 It is the whole structure schematic view of the device embodiment one of the utility model for quickly detecting the cushion stone flatness.

[0030] Fig. 2 It is the sectional view of the transverse rod, the support leg and the connecting rod and other components in the embodiment one of the utility model.

[0031] The drawings are as follows: 1, transverse rod;2, support leg;3, support foot;4, longitudinal rod;5, horizontal detection mechanism;6, sliding groove;7, sliding rod;8, connecting rod;9, stop rod;10, torsion spring;21, threaded sleeve;31, screw;32, support cushion block. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0033] In order to make the above-mentioned purposes, features and advantages of the utility model more apparent, obvious and easy to understand, the utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0034] Embodiment one:

[0035] With reference to Figs. 1-2 The utility model provides a device of quick detection of mat stone flatness. The device mainly is by horizontal bar 1, support leg 2, longitudinal bar 4 and horizontal detection mechanism 5 constitutes. Wherein, horizontal bar 1 is equipped with two, two parallel and not collinear. In the both ends of every horizontal bar 1, foldable support leg 2 is installed. This support leg 2 design is flexible, through corresponding folding operation, can make it with horizontal bar 1 parallel or perpendicular state, and also be equipped with telescopic support foot 3 in support leg 2 bottom. Between two support legs 2 of the same side, longitudinal bar 4 is installed in the perpendicular fixed connection mode. The projection of two horizontal bars 1 and two longitudinal bars 4 in vertical direction is rectangle. Horizontal bar 1 and longitudinal bar 4 are all configured with horizontal detection mechanism 5 that can measure its length direction, to realize the accurate detection of mat stone flatness.

[0036] In the both ends of horizontal bar 1, sliding slot 6 along its length direction is set up. Corresponding set up a sliding rod 7 in every sliding slot 6, and sliding rod 7 can be slidingly connected in sliding slot 6. Sliding rod 7 one end is connected with connecting rod 8 one end, and the other end of connecting rod 8 is hinged with the middle part of support leg 2, and simultaneously, the top of support leg 2 and the end of horizontal bar 1 are also connected in the hinged mode. The connecting structure design makes support leg 2 can be folded and unfolded operation flexibly.

[0037] In the utility model, horizontal bar 1 and support leg 2 all adopt channel steel structure, and the end of horizontal bar 1 is erected in the inner side of support leg 2. Every support leg 2 is connected with two connecting rods 8 respectively, and the two connecting rods 8 are located at the front and back sides of support leg 2 respectively. By overturning support leg 2, it can be buckled in the outer side of horizontal bar 1, at this time, two are parallel, and the device is in the storage state, on the contrary, overturning support leg 2 makes it perpendicular to horizontal bar 1, and the device is in the working state.

[0038] To ensure the stable state of the transverse rod 1 and the support leg 2 when they are arranged vertically, a limiting assembly is arranged on the transverse rod 1. The limiting assembly comprises a stopper rod 9, the middle part of which is rotationally connected with the transverse rod 1, and the rotation axis of the stopper rod 9 and the transverse rod 1 is located below the sliding groove 6. When it is needed to keep the support leg 2 and the transverse rod 1 vertically, the end of the stopper rod 9 close to the support leg 2 is turned up to lock the sliding rod 7 on the side of the sliding groove 6 close to the support leg 2 in a releasable manner, so as to realize the vertical and stable arrangement of the support leg 2 and the transverse rod 1.

[0039] An elastic member is arranged between the stopper rod 9 and the transverse rod 1, which drives the end of the stopper rod 9 close to the support leg 2 to turn up, so as to quickly and accurately lock the sliding rod 7 in place when limiting is needed. In the embodiment, the elastic member is a torsion spring 10, which is sleeved on the rotation axis between the stopper rod 9 and the transverse rod 1, one end of which is connected with the stopper rod 9 and the other end of which is connected with the transverse rod 1. When limiting operation is performed, the end of the stopper rod 9 away from the support leg 2 is turned down under the elastic force of the torsion spring 10, so as to realize the locking and limiting of the sliding rod 7.

[0040] The process of converting the transverse rod 1 and the support leg 2 from the parallel state to the vertical state is as follows: only the support leg 2 needs to be turned outwards, at the same time, the sliding rod 7 slides from the end of the sliding groove away from the support leg 2 to the end close to the support leg 2, and the torsion spring 10 is pressed, so that the end of the stopper rod 9 close to the support leg 2 is turned down; until the sliding rod 7 slides to the end of the sliding groove 6 close to the support leg 2, at this time, the support leg 2 and the transverse rod 1 are vertical, the end of the stopper rod 9 close to the support leg 2 is turned up under the action of the torsion spring 10, and the locking of the sliding rod 7 is realized, at this time, a stable vertical connection relationship is formed between the support leg 2 and the transverse rod 1.

[0041] The process of converting the transverse rod 1 and the support leg 2 from the vertical state to the parallel state is as follows: the force of the torsion spring 10 is overcome by artificial operation, so that the end of the stopper rod 9 away from the support leg 2 is turned up, and the stopper rod 9 is located below the sliding groove 6, then the support leg 2 is turned in the opposite direction, so that the support leg 2 and the transverse rod 1 are parallel. At this time, the artificial operation on the stopper rod 9 is stopped, the end of the stopper rod 9 close to the support leg 2 is turned up under the action of the torsion spring 10, until it abuts against the transverse rod 1.

[0042] A threaded sleeve 21 is fixedly installed at the bottom of the support leg 2. The support foot 3 comprises a screw rod 31, which is threadedly connected with the threaded sleeve 21 and is arranged along the length direction of the support leg 2. By rotating the screw rod 31, the extension and retraction adjustment of the support foot 3 can be realized. To further enhance the support stability, the support foot 3 further comprises a support pad 32, the lower end of the screw rod 31 being fixedly connected with the support pad 32. In use, the support pad 32 contacts with the pad stone, so as to increase the force receiving area and improve the support stability.

[0043] In one embodiment of the utility model, the threaded sleeve 21 is located inside the support leg 2 and is fixedly connected to the bottom of the web of the support leg 2. By rotating the support pad 32, the support pad 32 can be stored inside the support leg 2. When the support leg 2 is parallel to the transverse rod 1, the threaded sleeve 21, the screw rod 31 and the support foot 3 are clamped between the support leg 2 and the transverse rod 1.

[0044] At the middle positions of the transverse rod 1 and the longitudinal rod 4, horizontal detection mechanisms 5 are arranged. The horizontal detection mechanism 5 at the middle position of the transverse rod 1 is used to detect the horizontal information of the transverse rod 1 along its length direction, and the horizontal detection mechanism 5 at the middle position of the longitudinal rod 4 is used to detect the horizontal information of the longitudinal rod 4 along its length direction. By detecting the horizontal information in the two directions, the flatness of the cushion stone can be comprehensively judged.

[0045] In one embodiment of the utility model, the horizontal detection mechanism 5 adopts a horizontal bubble instrument. The horizontal bubble instrument is a common and relatively accurate horizontal detection tool. By observing the position of the bubble in the glass tube, it can be directly and accurately judged whether the measured object is in a horizontal state. It is simple to operate and has low cost, and can meet the precision requirements of the device for detecting the flatness of the cushion stone.

[0046] The working principle of the utility model is as follows: the support leg 2 is turned to a perpendicular state with the transverse rod 1, and the device is placed on the upper surface of the cushion stone which has been completed. By observing the horizontal bubble instrument, the four support pads 32 are rotated respectively so that they protrude below the support leg 2, and the length of the support pad 32 is adjusted until the transverse rod 1 and the longitudinal rod 4 are in a horizontal state, that is, the bubble in the horizontal bubble instrument is located at the central position in the glass tube. Then the lengths of the four support pads 32 extending from the support leg 2 are measured. If the four lengths are equal, it can be judged that the surface of the cushion stone is in a horizontal state. The position of the device on the upper surface of the cushion stone is adjusted several times. If the results are the same, it means that the flatness of the cushion stone is qualified. Otherwise, the flatness of the cushion stone has defects.

[0047] Embodiment two:

[0048] The difference between this embodiment and embodiment one is that no elastic member is arranged in this scheme. Specifically, the center of the stop rod 9 is located on the side of the stop rod 9 away from the rotating point of the transverse rod 1 and the support leg 2, that is, the end of the stop rod 9 away from the support leg 2 is turned down under the action of its own gravity. This design is also helpful to a certain extent to realize the locking and limiting function of the sliding rod 7.

[0049] The working principle of this embodiment is the same as that of embodiment one, and will not be described here.

[0050] In the description of the utility model, need understanding is, the term "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the utility model, and not indicate or imply that the indicated device or element must have a particular orientation, construct and operate in a particular orientation, therefore can not be understood as limiting the utility model.

[0051] The above-described embodiments are only descriptions of the preferred modes of the utility model, and do not limit the scope of the utility model, and various modifications and improvements to the technical solutions of the utility model made by those skilled in the art without departing from the design spirit of the utility model should fall within the protection scope defined by the claims of the utility model.

Claims

1. A device for quickly detecting the flatness of a bed stone, characterized in that, The utility model relates to a kind of horizontal and vertical support frame, including: Two parallel and non-collinear transverse bars (1) are arranged; Two ends of the transverse bar (1) are provided with foldable support legs (2), which can be parallel or perpendicular to the transverse bar (1) by folding the support legs (2), and the bottom of the support leg (2) is provided with a telescopic support foot (3); Two support legs (2) on the same side are vertically fixedly connected with longitudinal bars (4) between them;And Two transverse bars (1) and two longitudinal bars (4) are provided with horizontal detection mechanisms (5) along the length direction.

2. The device for quickly detecting the flatness of a bed stone according to claim 1, wherein Also includes: Two ends of the transverse bar (1) are provided with sliding grooves (6) along the length direction, and the sliding grooves (6) are one-to-one slidingly connected with sliding rods (7), the sliding rod (7) is connected with one end of connecting rod (8), the other end of the connecting rod (8) is hinged with the middle part of the support leg (2), and the top of the support leg (2) is hinged with the end of the transverse bar (1); A limiting component is arranged on the transverse bar (1), and the other end of the connecting rod (8) is selectively limited by the limiting component to realize the vertical arrangement of the transverse bar (1) and the support leg (2).

3. The device for quickly detecting the flatness of a bed stone according to claim 2, wherein The limiting component includes: The stop rod (9) is rotatably connected to the middle of the transverse bar (1), the rotation axis of the stop rod (9) and the transverse bar (1) is below the sliding groove (6), and the end of the stop rod (9) close to the support leg (2) is turned up to releasably lock the sliding rod (7) in the side of the sliding groove (6) close to the support leg (2), so as to realize the vertical arrangement of the support leg (2) and the transverse bar (1).

4. The device for quickly detecting the flatness of a bed stone according to claim 3, wherein The stop rod (9) and the transverse bar (1) are provided with an elastic member, which is used to drive the end of the stop rod (9) close to the support leg (2) to turn up.

5. The device for quickly detecting the flatness of a bed stone according to claim 4, wherein The elastic member is a torsion spring (10), which is sleeved on the rotation axis between the stop rod (9) and the transverse bar (1), one end of the torsion spring (10) is connected with the stop rod (9), the other end is connected with the transverse bar (1), and the torsion spring (10) is used to drive the end of the stop rod (9) away from the support leg (2) to turn down.

6. The device for quickly detecting the flatness of a bed stone according to claim 3, wherein The end of the stop rod (9) away from the support leg (2) turns down under its own gravity.

7. The device for quickly detecting the flatness of a bed stone according to claim 1, wherein The bottom of the support leg (2) is fixedly installed with a threaded sleeve (21), the support foot (3) includes a screw rod (31), the screw rod (31) is threadedly connected with the threaded sleeve (21), and is arranged along the length direction of the support leg (2).

8. The device for quickly detecting the flatness of a bed stone according to claim 7, wherein The support foot (3) further includes a support pad (32), and the lower end of the screw rod (31) is fixedly connected with the support pad (32).

9. The device for quickly detecting the flatness of a bed stone according to claim 1, wherein The horizontal detection mechanism (5) is arranged in the middle of the transverse bar (1) and is used for detecting the horizontal information of the transverse bar (1) along the length direction, and the horizontal detection mechanism (5) is arranged in the middle of the longitudinal bar (4) and is used for detecting the horizontal information of the longitudinal bar (4) along the length direction.

10. The device for quickly detecting the flatness of a padstone according to any one of claims 1 to 9, characterized in that, The level detection mechanism (5) is a level bubble. The level detection mechanism (5) is a level bubble.