Pavement flatness detection device

Abstract

The utility model belongs to the field of detection devices, and discloses a pavement flatness detection device, which comprises a main board, and a telescopic handle and a graduated scale are mounted on the top surface of the main board; a connecting rod is slidably inserted into the top surface of the auxiliary plate, moving wheels are mounted at the bottom of the connecting rod, an identification piece is mounted at the top of the connecting rod, and the connecting rod is sleeved with a first spring; the splicing block is installed on one side of the auxiliary plate, and splicing grooves are formed in one side of the auxiliary plate and the two sides of the main plate correspondingly; the limiting mechanism is used for limiting the position of the splicing block relative to the splicing groove. The splicing blocks are matched with the splicing grooves, so that the splicing blocks can enter the splicing grooves in an inserted mode, the positions of the splicing blocks can be limited by the limiting mechanisms after the splicing blocks enter the splicing grooves through the arrangement of the limiting mechanisms, and then the stability of the positions between the main board and the auxiliary boards and the stability of the positions between the auxiliary boards are guaranteed; and the situation that the splicing blocks slide out of the splicing grooves due to the situations of vibration, shaking and the like during use is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of detection device, specifically related to a road surface flatness detection device. BACKGROUND

[0002] Road surface flatness is an important index in road surface evaluation and road surface construction acceptance, mainly reflects the deviation value of longitudinal concave-convex amount of road surface, and corresponding detection equipment needs to be used for detection in the detection process.

[0003] In the related prior art, for example, a road surface flatness detection device is disclosed in Chinese patent No. CN222390205U, which comprises an adjusting main plate, a connecting plate is arranged on the adjusting main plate, an adjusting mechanism is arranged on the connecting plate, a vertical scale is arranged on the adjusting main plate, a plurality of adjusting sub-plates are detachably connected on both sides of the adjusting main plate, a detection mechanism is arranged on each of the plurality of adjusting sub-plates, the number or length of the adjusting sub-plates can be increased to adapt to different lengths of the road surface for flatness detection, and the length of the adjusting sub-plates can be increased or decreased by detaching to cover a wider road surface area, and the flatness detection of different length road surfaces can be adapted.

[0004] However, in actual use, since the adjusting main plate and the adjusting sub-plate or the adjusting sub-plate and the adjusting sub-plate are only inserted and clamped by the clamping part, when the device is used, the clamping part has the risk of detaching from the first or second clamping groove, which may cause the adjusting sub-plate and the adjusting sub-plate or the adjusting sub-plate and the adjusting main plate to disintegrate, i.e. the stability of the above-mentioned scheme is poor when used, which is not conducive to actual use. UTILITY MODEL CONTENTS

[0005] The utility model intends to provide a road surface flatness detection device to solve the problem of poor stability of the existing detection device mentioned above.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a road surface flatness detection device, comprising

[0007] The main plate is installed with a telescopic handle and a scale on the top surface.

[0008] The sub-plate is installed with a connecting rod on the top surface, the bottom of the connecting rod is installed with a moving wheel, the top of the connecting rod is installed with an identification element, the bottom edge of the identification element is higher than the top surface of the sub-plate, a first spring is sleeved on the connecting rod, and the first spring is located between the bottom surface of the sub-plate and the moving wheel.

[0009] The splicing block is installed on one side of the sub-plate close to the main plate.

[0010] The splicing groove is arranged on the side of the sub-plate away from the main plate and the two sides of the main plate, and the splicing block is matched with the splicing groove.

[0011] The position limiting mechanism is provided with a plurality of position limiting mechanisms corresponding to the splicing grooves respectively, and is used for limiting the position of the splicing block relative to the splicing groove.

[0012] The principle and effect of the technical scheme are as follows:

[0013] 1. Through the matching of the splicing block and the splicing groove, the splicing block can enter the splicing groove in a plug-in manner, and through the provision of the position limiting mechanism, the position of the splicing block after entering the splicing groove can be limited by the position limiting mechanism, thereby ensuring the stability of the positions between the main plate and the sub-plate and between the sub-plates, and avoiding the splicing block from sliding out of the splicing groove due to vibration and shaking during use.

[0014] 2. Through the provision of the connecting rod, the moving wheel, the first spring, the identification piece and the scale, when the device is used and passes through a road section with uneven road surface, the compression amount between the first springs is different, that is, the height corresponding to the identification piece is different, and then the road surface flatness at this position can be obtained according to the height of the different identification pieces and the scale.

[0015] The utility model further sets up: the cross section of splicing block is T-shaped, and the end of splicing block is connected with sub-plate.

[0016] The principle and effect of the technical scheme are as follows: the provision of the T-shaped splicing block has a difference between the protrusion and the depression, thereby facilitating the clamping and limiting of the position limiting mechanism without the need to open a slot hole on the splicing block.

[0017] The utility model further sets up: the side wall of main plate and the side wall of sub-plate are respectively provided with containing groove, the position limiting mechanism includes two position limiting units which are symmetrical about splicing groove, the position limiting unit includes limiting plate, pressing plate, second spring, baffle and pull ring, the pressing plate is slidably matched in the containing groove, the pressing plate is sleeved and fixed on the limiting plate, the end of limiting plate extends into the splicing groove, the side of limiting plate away from the splicing groove is abutted with the head of splicing block, the baffle is fixed on the side of containing groove away from splicing groove, and the baffle is slidably sleeved on the limiting plate, the pull ring is fixed on the end of limiting plate away from splicing block, and the pull ring is located on the side of baffle away from splicing groove, the second spring is installed in the containing groove and is located on the side of pressing plate away from splicing groove.

[0018] The principle and effects of the technical scheme are as follows: through the arrangement of the accommodating groove, the baffle, the limiting plate, the pressing plate and the second spring, the pressing plate is driven to move close to the splicing groove under the rebounding force of the second spring, and then when the head of the splicing block passes through the limiting plate, the limiting plate can clamp and limit the head of the splicing block, and the position of the limiting plate will not change due to vibration or shaking in the use process, thereby ensuring the stability of the clamping and limiting of the limiting plate, that is, ensuring the stability of the use of the sub-plate and the sub-plate or the sub-plate and the main plate, and the limiting plate can be moved away from the splicing groove by pulling the pull ring, thereby the clamping and limiting of the head of the splicing block by the limiting plate is contacted, so that the splicing block is pulled out of the splicing groove, the design is convenient to disassemble and assemble, the connection stability is high, and the actual use is facilitated.

[0019] The utility model further sets up: the side of limiting plate is close to the splicing groove mouth has the guide sliding surface.

[0020] The principle and effects of the technical scheme are as follows: the arrangement of the guide sliding surface enables the splicing block to drive the limiting plate to move away from the splicing groove by pressing when entering the splicing groove, thereby making room for the head of the splicing block, and the position of the limiting plate does not need to be controlled by manpower, thereby making the actual use more convenient and saving manpower.

[0021] The utility model further sets up: the limiting mechanism still includes the ejection unit, the ejection unit includes the top plate and the elastic piece, the top plate is close to the splicing groove mouth with the head of splicing block and is opposite and connects one side of the top plate away from the splicing groove mouth.

[0022] The principle and effects of the technical scheme are as follows: through the arrangement of the top plate and the elastic piece, when the splicing block is clamped in the splicing groove by the limiting unit, the top plate is tightly abutted on the head of the splicing block under the rebounding force of the elastic piece, thereby increasing the friction force between the splicing block and the limiting unit, making the splicing relationship more reliable, and after removing the limitation of the limiting unit on the splicing block, the top plate will spontaneously drive the splicing block to leave the splicing groove under the rebounding force of the elastic piece, thereby saving manpower without controlling the position of the splicing block while controlling the limiting unit.

[0023] The utility model further sets up: the elastic piece includes the guide rod, the sliding block and the third spring, the sliding block is fixed on the side wall of the top plate, the inner wall of the splicing groove is provided with the sliding cavity, the sliding block and the sliding cavity are slidably connected, one end of the guide rod is connected with the side of the sliding block away from the splicing block, the other end of the guide rod is slidably inserted into the groove wall of the splicing groove, and the third spring is installed in the sliding cavity and located at the side of the sliding block away from the splicing block.

[0024] The principle and effects of the technical scheme are as follows: through the sliding of the sliding block in the sliding cavity, the guiding of the guide rod and the limiting of the third spring, the rebounding force of the third spring can drive the top plate to automatically approach the splicing groove opening, and the third spring has a large extension amount, thereby better providing the position change of the top plate.

[0025] The utility model further sets up: the identification piece includes the identification board that section presents inverted U shape, the top of connecting rod is connected with the top of inside of identification board, the horizontal length of identification board is same with the horizontal length of vice board, the side wall of identification board is made with scale.

[0026] The principle and effects of the technical scheme are as follows: through the sliding of the sliding block in the sliding cavity, the guiding of the guide rod and the limiting of the third spring, the rebounding force of the third spring can drive the top plate to automatically approach the splicing groove opening, and the third spring has a large extension amount, thereby better providing the position change of the top plate. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the front view of the utility model;

[0028] Figure 2 It is Figure 1 The enlarged structure diagram of the main plate;

[0029] Figure 3 It is Figure 1 The enlarged structure diagram of the vice plate;

[0030] Figure 4 It is Figure 1 The enlarged sectional structure diagram of the splicing groove and the splicing block cooperation;

[0031] Figure 5 It is Figure 4 The enlarged structure diagram of the top plate;

[0032] Figure 6 It is Figure 1 The enlarged sectional structure diagram of the splicing groove and the splicing block cooperation; DETAILED DESCRIPTION

[0033] The utility model will be further explained in detail in combination with the drawings and implementation:

[0034] The reference signs in the drawings of the specification include:

[0035] 110, main plate; 120, telescopic handle; 130, scale.

[0036] 210, sub-plate; 220, connecting rod; 230, moving wheel; 240, identification plate; 250, first spring;

[0037] 310, splicing block; 320, splicing groove; 321, sliding cavity; 330, containing groove;

[0038] 410, limiting plate; 411, guide sliding surface; 420, pressing plate; 430, second spring; 440, baffle; 450, pull ring;

[0039] 510, top plate; 520, sliding block; 530, guide rod; 540, third spring;

[0040] Embodiments:

[0041] As shown in the accompanying drawings Figures 1-6 The utility model discloses a road surface flatness detection device, including mainboard 110, sub-plate 210, splicing block 310, splicing groove 320 and limiting mechanism, the top surface of mainboard 110 is installed with telescopic handle 120 and scale 130, telescopic handle 120 can be held and pushed by the user, and scale 130 is located at both sides of mainboard 110, the top surface of sub-plate 210 is slidably inserted with connecting rod 220, the bottom of connecting rod 220 is installed with moving wheel 230, and connecting rod 220 is sleeved with first spring 250, moving wheel 230 is composed of wheel frame and gyroscopically installed roller on the wheel frame, and first spring 250 is located at the top of wheel frame, and first spring 250 is located at the bottom surface of sub-plate 210, the top of connecting rod 220 is installed with identification element, and the identification element includes identification plate 240 with inverted U-shaped cross section, the bottom edge of identification plate 240 is higher than the top surface of sub-plate 210, the top of connecting rod 220 is connected with the top of the inner side of identification plate 240, the horizontal length of identification plate 240 is same with the horizontal length of sub-plate 210, and scale is made on the side wall of identification plate 240.

[0042] The side of sub-plate 210 is fixed with splicing block 310, the other side of sub-plate 210 is provided with splicing groove 320, and the left and right sides of mainboard 110 are provided with splicing groove 320 respectively, splicing groove 320 is matched with splicing block 310, the cross section of splicing block 310 is T-shaped, and the end of splicing block 310 is connected with sub-plate 210, scale 130 is provided with two and is located at the both sides of the top surface of mainboard 110, and when using, identification plate 240 connected with mainboard 110 abuts with scale 130.

[0043] The front and rear sidewalls of the main plate 110 and the front and rear sidewalls of the auxiliary plate 210 are respectively provided with accommodating grooves 330, the positions of the accommodating grooves 330 correspond to the positions of the splicing grooves 320, and the number ratio is 2:1, that is, one splicing groove 320 corresponds to two symmetrical accommodating grooves 330, the limiting mechanism includes two limiting units symmetrical about the splicing groove 320, the limiting unit includes a limiting plate 410, a pressing plate 420, a second spring 430, a baffle 440 and a pull ring 450, the pressing plate 420 is slidingly fitted in the accommodating groove 330, the pressing plate 420 is sleeved and fixed on the limiting plate 410, the end of the limiting plate 410 extends into the splicing groove 320, the side of the limiting plate 410 away from the slot of the splicing groove 320 abuts against the head of the splicing block 310, the baffle 440 is fixed on the side of the accommodating groove 330 away from the splicing groove 320, and the baffle 440 is slidingly sleeved on the limiting plate 410, the pull ring 450 is fixed on the end of the limiting plate 410 away from the splicing block 310, and the pull ring 450 is located on the side of the baffle 440 away from the splicing groove 320, the second spring 430 is installed in the accommodating groove 330 and located on the side of the pressing plate 420 away from the splicing groove 320, and the side of the limiting plate 410 close to the slot of the splicing groove 320 has a guide sliding surface 411.

[0044] The limiting mechanism further includes an ejection unit, the ejection unit includes a top plate 510 and an elastic member, the top plate 510 is slidingly fitted with the splicing groove 320, and the side of the top plate 510 close to the slot of the splicing groove 320 abuts against the head of the splicing block 310, the elastic member includes a guide rod 530, a sliding block 520 and a third spring 540, the sliding block 520 is fixed on the sidewall of the top plate 510, a sliding cavity 321 is formed on the inner wall of the splicing groove 320, the sliding block 520 is slidingly fitted with the sliding cavity 321, one end of the guide rod 530 is connected to the side of the sliding block 520 away from the splicing block 310, the other end of the guide rod 530 is slidingly inserted into the groove wall of the splicing groove 320, and the third spring 540 is installed in the sliding cavity 321 and located on the side of the sliding block 520 away from the splicing block 310.

[0045] The specific implementation process is as follows:

[0046] When in use, the splicing block 310 can be inserted into the splicing groove 320 corresponding to the main plate 110 or the splicing groove 320 corresponding to the auxiliary plate 210 in a plug-in manner, the abutment of the splicing block 310 to the guide sliding surface 411 of the limiting plate 410, and the pressing of the top plate 510, so that the top plate 510 and the limiting plate 410 respectively give way to the sliding of the splicing block 310, and when the head of the splicing block 310 completely passes through the end of the limiting plate 410, the end of the limiting plate 410 slides into the splicing groove 320 under the rebounding force of the second spring 430 to abut and limit the head of the splicing block 310, so that the splicing block 310 cannot slide out of the splicing groove 320 without contacting the limiting plate 410, thereby ensuring the stability of the device when in use. The third spring 540 drives the top plate 510 to tightly abut the head of the splicing block 310, so that the head of the splicing block 310 tightly abuts the limiting plate 410, thereby avoiding the slight shaking of the splicing block 310 in the splicing groove 320 due to manufacturing errors, and improving the stability when in use.

[0047] When disassembly is needed, the limiting plate 410 can be driven away from the splicing groove 320 by pulling the pull ring 450 on both sides of the splicing groove 320, so that the head of the splicing block 310 does not abut the limiting plate 410, and the top plate 510 will push the splicing block 310 away from the splicing groove 320 under the rebounding force of the third spring 540, thereby saving manpower, and when holding the whole auxiliary plate 210, the connection between the identification plate 240 and the connecting rod 220 can be held, thereby facilitating the holding of the whole auxiliary plate 210.

[0048] When the device is detected, the first spring 250 will be compressed to a certain extent due to the weight of the main plate 110, the auxiliary plate 210, etc. After the connecting rod 220 remains stable, the compression amount of the first spring 250 corresponding to different road surface heights is different, that is, the height of the corresponding identification plate 240 is different. The height of the identification plate 240 located at the center relative to the scale 130 is recorded, and the height of the adjacent identification plate 240 can be recorded by the height difference between the identification plates 240 when recording in turn to the edge. Finally, the heights are arranged in turn, and then the corresponding road surface height can be obtained according to the addition and subtraction of the scale corresponding to the center.

[0049] The above only is the embodiment of the present application, and the well-known specific technical solutions or common knowledge in the scheme are not described in detail. It should be pointed out that, for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope claimed in the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A road surface flatness detection device characterized by comprising: Comprising a main plate, a top surface of which is provided with a telescopic handle and a scale; a sub plate, a top surface of which is slidably provided with a connecting rod, a bottom of the connecting rod is provided with a moving wheel, a top of the connecting rod is provided with an identification element, a bottom edge of the identification element is higher than the top surface of the sub plate, a first spring is sleeved on the connecting rod, and the first spring is located between the bottom surface of the sub plate and the moving wheel; a splicing block, which is installed on one side of the sub plate close to the main plate; a splicing groove, which is provided on one side of the sub plate away from the main plate and two sides of the main plate, the splicing groove is matched with the splicing block; a limiting mechanism, which is provided with a plurality of limiting mechanisms and is respectively matched with the splicing groove, the limiting mechanism is used for limiting the position of the splicing block relative to the splicing groove.

2. The road surface flatness detection device according to claim 1, wherein The cross section of the splicing block is T-shaped, and the end of the splicing block is connected with the sub plate.

3. A road surface evenness detection device as claimed in claim 2, characterized in that: The side wall of the main plate and the side wall of the sub plate are respectively provided with a receiving groove, the limiting mechanism includes two limiting units which are symmetrical about the splicing groove, the limiting unit includes a limiting plate, a pressing plate, a second spring, a baffle and a pull ring, the pressing plate is slidably fitted in the receiving groove, the pressing plate is sleeved and fixed on the limiting plate, the end of the limiting plate extends into the splicing groove, the side of the limiting plate away from the slot of the splicing groove abuts against the head of the splicing block, the baffle is fixed on the side of the receiving groove away from the splicing groove, and the baffle is slidably sleeved on the limiting plate, the pull ring is fixed on one end of the limiting plate away from the splicing block, and the pull ring is located on the side of the baffle away from the splicing groove, the second spring is installed in the receiving groove and located on the side of the pressing plate away from the splicing groove.

4. The road surface flatness detection device of claim 3, wherein: The side of the limiting plate close to the slot of the splicing groove has a guide sliding surface.

5. The road surface flatness detection device of claim 3, wherein: The limiting mechanism further includes an ejection unit, the ejection unit includes a top plate and an elastic element, the top plate is slidably fitted with the splicing groove, and the side of the top plate close to the slot of the splicing groove abuts against the head of the splicing block, the elastic element is installed on the side of the top plate away from the slot of the splicing groove.

6. A road surface evenness detection device as claimed in claim 5, characterised in that: The elastic element includes a guide rod, a sliding block and a third spring, the sliding block is fixed on the side wall of the top plate, a sliding cavity is formed on the inner wall of the splicing groove, the sliding block is slidably fitted with the sliding cavity, one end of the guide rod is connected with the side of the sliding block away from the splicing block, the other end of the guide rod is slidably installed with the slot wall of the splicing groove, and the third spring is installed in the sliding cavity and located on the side of the sliding block away from the splicing block.

7. The road surface flatness detection device of claim 1, wherein: The identification element includes an identification plate with an inverted U-shaped cross section, the top of the connecting rod is connected with the top of the inner side of the identification plate, the horizontal length of the identification plate is the same as the horizontal length of the sub plate, and a scale is formed on the side wall of the identification plate.

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