Road and bridge pressure resistance detection device

Abstract

The utility model relates to the technical field of bridge pavement detection, in particular to a road bridge pressure resistance detection device which comprises a physical testing machine body and a springback detector, a driving mechanism and a driven mechanism are arranged on the physical testing machine body, the driven mechanism comprises a support fixedly installed with the physical testing machine body, and a rolling shaft is rotationally arranged on the support. The side, close to the driven mechanism, of the physical testing machine body is provided with an intermittent driving assembly used for physical testing and rotating in cooperation with the rolling shaft. By arranging the driven mechanism, the intermittent driving assembly for physical testing, the linkage assembly for physical testing and the telescopic adjusting assembly for physical testing, the distance between measuring points of the springback detector can be adjusted according to requirements, and the effect of road and bridge pressure resistance detection is effectively ensured; and through cooperation among the driven mechanism, the linkage assembly for physical testing and the intermittent driving assembly for physical testing, the intermittent driving assembly for physical testing can operate along with movement of the physical testing machine body.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge pavement detection, in particular to a road bridge compression resistance detection device. Background Art

[0002] After the construction of a bridge is completed and before it is put into use, multiple indicators of its pavement must be tested and evaluated to determine whether it is suitable for use. This is done through a variety of methods to assess the structural health, load-bearing capacity and safety of the bridge, and to promptly identify and resolve potential problems.

[0003] A road bridge compression resistance detection device disclosed in Chinese patent publication number CN220932593U drives the entire detection device to perform intermittent motion through a driving mechanism. The second rotating shaft drives the directional wheel to rotate intermittently through the intermittent rotation of the pinion gear, and drives the entire device to move forward intermittently. When the device stops moving, the rebound detector is driven down by the lifting cylinder. When the rebound detector collides with the concrete surface, the instrument will measure the rebound energy or rebound value to detect the bridge pavement.

[0004] However, compared with the existing technologies in the related fields, since the number of teeth on the large gear and the small gear is fixed, the distance between each start and stop of the vehicle is fixed, which will cause the distance between the measuring points to be fixed. As a result, the device cannot adjust the distance between the measuring points according to actual needs. At the same time, during measurement, in order to ensure that the lifting cylinder of the device can drive the rebound detector to descend when it stops, the lifting cylinder and the device need to be highly coordinated in terms of electronic control. Therefore, the equipment debugging process is more complicated and the overall production cost is higher. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background technology, and provide a road bridge compression resistance detection device.

[0006] The purpose of the utility model is achieved through the following technical solutions: a road bridge compression resistance detection device, including a physical test body and a rebound detector, the physical test body is provided with a driving mechanism and a driven mechanism, the driven mechanism includes a bracket fixedly mounted with the physical test body, a roller is rotatably provided on the bracket, both ends of the roller are fixedly mounted with a rotating wheel, a physical test intermittent drive component for rotating with the roller is provided on the side of the physical test body close to the driven mechanism, the physical test intermittent drive component is used to control the rebound detector to reciprocate up and down; the physical test intermittent drive component includes a fixed cylinder and a fixed rod fixedly mounted with the physical test body, a rotating shaft is rotatably provided on the fixed rod, a rotating disk is fixedly installed at one end of the rotating shaft close to the fixed cylinder, the rotating shaft rotates in cooperation with the roller through a physical test linkage component, a sliding rod is longitudinally slidably provided inside the fixed cylinder, a fixed frame is fixedly mounted at the bottom end of the sliding rod, a support for controlling the reciprocating sliding of the fixed frame up and down is slidably provided on the rotating disk, and the bottom of the fixed frame is mounted in cooperation with the rebound detector through a telescopic adjustment component for physical testing.

[0007] The linkage assembly for physical testing includes a first pulley fixedly installed at the end of a rotating shaft, a second pulley fixedly installed at a position corresponding to the first pulley on the outer surface of the roller, and the first pulley and the second pulley are connected by a transmission belt.

[0008] An adjusting slot is provided at a position of the rotating disk corresponding to the support column, a first screw rod is provided for rotating the rotating disk corresponding to the extending direction of the adjusting slot, and the support column is threadedly connected with the first screw rod.

[0009] A bearing sleeve is sleeved on the outer surface of the pillar near one end of the fixed frame, a first rotating hole is opened at a position of the rotating disk corresponding to the first screw rod, and the first screw rod is matched and connected with the first rotating hole through a bearing.

[0010] The telescopic adjustment assembly for physical testing includes a sleeve fixedly connected to a fixed frame, a slider is slidably provided inside the sleeve, a slot is opened on one side of the sleeve, an adjustment block is fixedly provided on the top side of the slider close to the slot, a fixed block is fixedly provided on the outer surface of the sleeve at a position corresponding to the adjustment block, a second screw is rotatably provided on the fixed block, and the adjustment block is threadedly connected to the second screw.

[0011] The rebound detector is connected to the bottom flange of the slider, a second rotating hole is opened at the position of the fixed block corresponding to the second screw rod, and the second screw rod is matched and connected with the second rotating hole through a bearing. Beneficial Effects

[0012] The road and bridge compression resistance detection device, by providing a driven mechanism, an intermittent driving component for physical testing, a linkage component for physical testing and a telescopic adjustment component for physical testing, can, on the one hand, adjust the spacing between the measuring points of the rebound detector according to demand, effectively ensuring the effect of the road and bridge compression resistance detection, and the spacing between the measuring points of the rebound detector can be adjusted without reducing or increasing the speed of the physical testing body, effectively ensuring the efficiency of the road and bridge compression resistance detection, and on the other hand, by utilizing the cooperation between the driven mechanism, the linkage component for physical testing and the intermittent driving component for physical testing, the intermittent driving component for physical testing can be operated with the movement of the physical testing body, and the fixed frame can drive the sliding rod, the telescopic adjustment component for physical testing and the rebound detector to slide back and forth up and down, effectively reducing energy loss and the production cost of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the bracket of the utility model;

[0015] Figure 3 This is a schematic diagram of the state of the utility model rebound tester before testing;

[0016] Figure 4 This is a schematic diagram of the state of the utility model rebound tester during testing;

[0017] Figure 5 This is a schematic diagram of the structure of the intermittent drive assembly for physical testing of the utility model;

[0018] Figure 6 It is a structural schematic diagram of the adjusting groove and the first screw rod of the utility model;

[0019] Figure 7 It is a structural schematic diagram of the linkage assembly for physical testing of the utility model;

[0020] Figure 8 This is a structural schematic diagram of the fixed frame of the utility model;

[0021] Fig. 9 For this utility model Figure 8 A schematic diagram of the enlarged structure at point A in the middle.

[0022] In the figure: 1. physical test body; 2. driving mechanism; 3. driven mechanism; 301. bracket; 302. roller; 303. rotating wheel; 4. rebound tester; 5. intermittent drive assembly for physical test; 501. fixed cylinder; 502. fixed rod; 503. rotating shaft; 504. turntable; 5041. adjusting groove; 5042. first screw rod; 505. sliding rod; 506. fixed frame; 507. pillar; 5071. bearing sleeve; 6. linkage assembly for physical test; 601. first pulley; 602. second pulley; 603. transmission belt; 7. telescopic adjustment assembly for physical test; 701. sleeve; 702. slider; 703. notch; 704. adjusting block; 705. fixed block; 706. second screw rod. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0024] Additional aspects and advantages of the present invention will be further described below in conjunction with the accompanying drawings, and some will become apparent from the following description or be learned through practice of the present invention.

[0025] like Figures 1 to 9As shown, a road bridge compression resistance detection device comprises a physical test body 1 and a rebound detector 4. The physical test body 1 is provided with a driving mechanism 2 and a driven mechanism 3. The driven mechanism 3 comprises a bracket 301 fixedly mounted with the physical test body 1. A roller 302 is rotatably provided on the bracket 301. Both ends of the roller 302 are fixedly mounted with a rotating wheel 303. A physical test intermittent driving component 5 for rotating with the roller 302 is provided on one side of the physical test body 1 close to the driven mechanism 3. The physical test intermittent driving component 5 is used to control the rebound detector 4 to reciprocate up and down. The physical test intermittent driving component 5 comprises a bracket 301 fixedly mounted with the physical test body 1. The fixed cylinder 501 and the fixed rod 502 are fixedly installed on the physical test body 1, and a rotating shaft 503 is rotatably provided on the fixed rod 502. A rotating disk 504 is fixedly installed on one end of the rotating shaft 503 close to the fixed cylinder 501. The rotating shaft 503 rotates in coordination with the roller 302 through a physical test linkage component 6. A sliding rod 505 is longitudinally slidably provided inside the fixed cylinder 501. A fixed frame 506 is fixedly installed at the bottom end of the sliding rod 505. A support 507 for controlling the reciprocating sliding of the fixed frame 506 up and down is slidably provided on the rotating disk 504. The bottom of the fixed frame 506 is installed in coordination with the rebound tester 4 through a physical test telescopic adjustment component 7. Figure 1 As shown, the physical test body 1 is provided with a camera unit, a control unit and a power supply unit. The camera unit is used to facilitate remote operation by the staff, the power supply unit is used to supply power to the camera unit, the camera unit and the driving mechanism 2, and the control unit is used to adjust the camera angle of the camera unit and the forward, backward, left and right movement of the driving mechanism 2. The above-mentioned driving mechanism 2, camera unit, control unit and power supply unit are all well-known technologies in the technical field, so their specific structures and working principles are not described in detail.

[0026] like Figure 2 As shown, the linkage assembly 6 for physical testing includes a first pulley 601 fixedly installed at the end of the rotating shaft 503, and a second pulley 602 is fixedly installed on the outer surface of the roller 302 at a position corresponding to the first pulley 601. The first pulley 601 and the second pulley 602 are connected by a transmission belt 603. When the roller 302 and the rotating wheel 303 of the driven mechanism 3 rotate, the rotation of the rotating shaft 503 can be controlled by utilizing the cooperation between the first pulley 601, the second pulley 602 and the transmission belt 603, and then the rotating shaft 503 controls the rotation of the turntable 504.

[0027] like Figures 6 to 8As shown, the rotating disk 504 is provided with an adjustment groove 5041 at a position corresponding to the pillar 507, and the rotating disk 504 is provided with a first screw rod 5042 for rotation in the extending direction of the adjustment groove 5041. The pillar 507 is threadedly connected with the first screw rod 5042, and a bearing sleeve 5071 is sleeved on the outer surface of the pillar 507 close to one end of the fixed frame 506. The bearing sleeve 5071 can be used to avoid hard friction between the pillar 507 and the fixed frame 506. The rotating disk 504 is provided with a first rotation hole at a position corresponding to the first screw rod 5042, and the first screw rod 5042 is matched and connected with the first rotation hole through a bearing. The above-mentioned bearing can ensure the stability of the first screw rod 5042 when rotating. When it is necessary to adjust the spacing between the measuring points, the position of the pillar 507 is adjusted by the first screw rod 5042, and then the amplitude of the up and down reciprocating activities of the telescopic adjustment component 7 for physical testing and the rebound detector 4 will change accordingly (such as Figures 3 to 5 as shown).

[0028] like Figure 8 and Fig. 9 As shown, the telescopic adjustment component 7 for physical testing includes a sleeve 701 fixedly connected to the fixed frame 506, a slider 702 is slidably provided inside the sleeve 701, a notch 703 is provided on one side of the sleeve 701, an adjustment block 704 is fixedly provided on the side of the top of the slider 702 close to the notch 703, a fixed block 705 is fixedly provided on the outer surface of the sleeve 701 corresponding to the position of the adjustment block 704, a second screw 706 is rotatably provided on the fixed block 705, the adjustment block 704 is threadedly connected to the second screw 706, the rebound detector 4 is flange-connected to the bottom end of the slider 702, a second rotation hole is provided on the fixed block 705 corresponding to the position of the second screw 706, and the second screw 706 is matched and connected to the second rotation hole through a bearing. By using the above-mentioned bearing, the stability of the second screw 706 during rotation can be improved, so that the second screw 706 can adjust the position of the slider 702 through the adjustment block 704, thereby changing the relative distance between the rebound detector 4 and the ground, so as to ensure that the contact of the rebound detector 4 can be retracted into the rebound detector 4.

[0029] The working process is as follows:

[0030] S1, such as Figure 1 and Figure 2 As shown, during the test, the driving mechanism 2 controls the physical test body 1 to move on the road bridge. When the roller 302 and the rotating wheel 303 of the driven mechanism 3 rotate, the first pulley 601, the second pulley 602 and the transmission belt 603 cooperate to control the rotation of the rotating shaft 503, and then the rotating shaft 503 controls the rotation of the rotating disk 504.

[0031] S2, such as Figure 3 , Figure 4 and Fig. 9As shown, when the turntable 504 rotates, the support 507 and the fixed frame 506 cooperate to allow the fixed frame 506 to drive the sliding rod 505, the physical test telescopic adjustment component 7 and the rebound tester 4 to slide up and down (as shown in FIG. Figure 4 and Figure 5 As shown, when the support 507 rotates upward with the turntable 504, the sliding rod 505 moves to the currently highest position, and when the support 507 rotates downward with the turntable 504, the sliding rod 505 moves to the currently lowest position);

[0032] S3, such as Figures 3 to 9 As shown, by sliding the telescopic adjustment assembly 7 for physical testing back and forth up and down, the contact of the rebound detector 4 can be intermittently contacted with the road bridge pavement, so that when the contact of the rebound detector 4 collides with the concrete surface, the instrument will measure the rebound energy or rebound value, and when the rebound detector 4 is separated from the concrete surface, the contact of the rebound detector 4 will return to the initial state (such as Figure 3 As shown, the initial state is that the contacts of the rebound detector 4 are all extended, as shown in FIG. Figure 4 As shown, the test state is that the contact of the rebound detector 4 is retracted into the rebound detector 4);

[0033] S4, such as Figures 3 to 9 As shown, when the spacing between the measuring points needs to be adjusted, the position of the support 507 is adjusted by the first screw rod 5042, and then the amplitude of the up-and-down reciprocating movement of the telescopic adjustment component 7 for physical testing and the rebound detector 4 will change accordingly (the closer the support 507 is to the center position of the turntable 504, the smaller the amplitude of the up-and-down reciprocating movement of the telescopic adjustment component 7 for physical testing and the rebound detector 4 will be, and vice versa, the larger the amplitude of the up-and-down reciprocating movement of the telescopic adjustment component 7 for physical testing and the rebound detector 4 will be);

[0034] S5, such as Figures 3 to 9 As shown, after the position of the support 507 is adjusted, the second screw 706 can adjust the position of the slider 702 through the threaded connection between the adjusting block 704 and the second screw 706, thereby changing the relative distance between the rebound detector 4 and the ground to ensure that the contact of the rebound detector 4 can be retracted into the rebound detector 4 (when the amplitude of the up and down reciprocating activities of the telescopic adjustment component 7 for physical testing and the rebound detector 4 becomes smaller, the distance between the rebound detector 4 and the ground will also become larger, so it is necessary to adjust the distance between the rebound detector 4 and the ground in time) when the amplitude of the up and down reciprocating activities of the telescopic adjustment component 7 for physical testing and the rebound detector 4 becomes smaller, the distance between the measuring points will also become shorter.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A road and bridge compression resistance detection device, characterized in that: The invention comprises a physical testing machine (1) and a rebound detector (4), wherein the physical testing machine (1) is provided with a driving mechanism (2) and a driven mechanism (3), wherein the driven mechanism (3) comprises a bracket (301) fixedly mounted on the physical testing machine (1), a roller (302) being rotatably mounted on the bracket (301), and rotating wheels (303) being fixedly mounted on both ends of the roller (302), and an intermittent driving component (5) for physical testing which rotates in cooperation with the roller (302) being provided on a side of the physical testing machine (1) close to the driven mechanism (3), and the intermittent driving component (5) for physical testing is used to control the rebound detector (4) to perform up and down reciprocating motion; The intermittent drive assembly (5) for physical testing comprises a fixed cylinder (501) and a fixed rod (502) fixedly mounted on the physical testing machine body (1); a rotating shaft (503) is rotatably mounted on the fixed rod (502); a rotating disk (504) is fixedly mounted on one end of the rotating shaft (503) close to the fixed cylinder (501); the rotating shaft (503) rotates in cooperation with the roller (302) through a linkage assembly (6) for physical testing; a sliding rod (505) is longitudinally slidably mounted inside the fixed cylinder (501); a fixed frame (506) is fixedly mounted on the bottom end of the sliding rod (505); a support (507) for controlling the reciprocating sliding of the fixed frame (506) up and down is slidably mounted on the rotating disk (504); and the bottom of the fixed frame (506) is mounted in cooperation with the rebound detector (4) through a telescopic adjustment assembly (7) for physical testing.

2. A road bridge compression resistance detection device according to claim 1, characterized in that: The linkage assembly (6) for physical testing comprises a first pulley (601) fixedly mounted on the end of the rotating shaft (503); a second pulley (602) is fixedly mounted on the outer surface of the roller (302) at a position corresponding to the first pulley (601); the first pulley (601) and the second pulley (602) are connected via a transmission belt (603).

3. A road bridge compression resistance detection device according to claim 1, characterized in that: The rotating disk (504) is provided with an adjustment slot (5041) at a position corresponding to the support (507), and the rotating disk (504) is provided with a first screw rod (5042) that rotates in a direction corresponding to the extension direction of the adjustment slot (5041), and the support (507) is threadedly connected to the first screw rod (5042).

4. A road bridge compression resistance detection device according to claim 3, characterized in that: A bearing sleeve (5071) is sleeved on one end of the outer surface of the support (507) close to the fixed frame (506), and a first rotating hole is opened on the rotating disk (504) at a position corresponding to the first screw rod (5042), and the first screw rod (5042) is connected to the first rotating hole through a bearing.

5. A road bridge compression resistance detection device according to claim 1, characterized in that: The telescopic adjustment assembly (7) for physical testing comprises a sleeve (701) fixedly connected to the fixed frame (506); a slider (702) is slidably provided inside the sleeve (701); a notch (703) is provided on one side of the sleeve (701); an adjustment block (704) is fixedly provided on the top of the slider (702) near the notch (703); a fixed block (705) is fixedly provided on the outer surface of the sleeve (701) at a position corresponding to the adjustment block (704); a second screw (706) is rotatably provided on the fixed block (705); and the adjustment block (704) is threadedly connected to the second screw (706).

6. A road bridge compression resistance detection device according to claim 5, characterized in that: The rebound detector (4) is connected to the bottom flange of the slider (702); a second rotation hole is provided at a position of the fixed block (705) corresponding to the second screw rod (706); and the second screw rod (706) is connected to the second rotation hole through a bearing.

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