A portable bridge deck stiffness testing device for building bridges

Abstract

This invention discloses a portable bridge deck stiffness testing device for building bridges, comprising a housing, which is the main outer shell structure of the testing device. A caster wheel is fixedly mounted on the bottom surface of the housing; a handwheel extends through the top surface of the housing, and a transmission gear is fixedly mounted on the bottom surface of the handwheel; a first testing chamber is formed on one side surface of the housing, and a second testing chamber is formed on the other side surface of the housing. This portable bridge deck stiffness testing device can be moved to the desired testing section via the caster wheel, allowing the material to be tested to be placed on a barrier plate simultaneously. When a tension spring drives a support block to strike the material via a striking block on a fixed rod (achieving the first testing method), the striking block, through the fixed plate and support plate, simultaneously drives a striking ball on the support rod to strike the bridge deck, thus achieving simultaneous testing.

Description

Technical Field

[0001] This invention relates to the field of building and bridge technology, specifically to a portable bridge deck stiffness testing device for building and bridge construction. Background Technology

[0002] During the construction, paving, and maintenance of bridges, a stiffness testing device is needed to test the bridge deck or its materials. This facilitates the assessment of the deck and its materials' stiffness, aiding in inspection and maintenance. However, this testing device has some drawbacks:

[0003] Firstly, most testing equipment lacks the ability to be easily carried and moved to simultaneously test bridge decks and bridge deck materials, which is inconvenient and requires multiple tests or the use of multiple devices.

[0004] Secondly, it lacks the ability to perform multiple detection methods, resulting in a limited range of detection options and the inability to consider various factors, which is quite troublesome. Summary of the Invention

[0005] The purpose of this invention is to provide a portable bridge deck stiffness testing device for building bridges, so as to solve the problems mentioned in the background art, such as inconvenience in carrying and simultaneously testing materials and bridge decks, and lack of multiple testing methods.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a portable bridge deck stiffness testing device for building bridges, comprising:

[0007] The housing is the main outer shell structure of the testing equipment, and casters are fixedly installed on the bottom surface of the housing.

[0008] A handwheel extends through the top surface of the housing, and a transmission gear is fixedly installed on the bottom surface of the handwheel;

[0009] A first test chamber is formed on one side surface of the housing, and a second test chamber is formed on the other side surface of the housing;

[0010] A material guide trough is formed on the outer surface of the box body, and both the outer surfaces of the box body and the material guide trough are penetrated by a baffle plate.

[0011] As a preferred embodiment of the present invention, a limiting block is provided inside the handwheel, and the limiting block and the handwheel form a sliding structure for engaging. A first bolt is fixedly connected to the bottom surface of the limiting block. The first bolt passes through the outer surface of the transmission gear and the inner surface of the first test cavity, respectively. The first bolt is threadedly connected to the housing, and the limiting block is square in shape.

[0012] Using the above technical solution, when the handwheel rotates, it can drive the limiting block, which is restricted from rotating inside, to rotate together. At this time, the limiting block will drive the first bolt to rotate. The first bolt is threadedly connected to the housing, so the first bolt will rotate and slide downwards, achieving a downward pressing function that rotates and moves simultaneously.

[0013] As a preferred embodiment of the present invention, a driven gear is connected to the outer surface of the transmission gear, and the outer surface of the driven gear is penetrated by a screw. Both the screw and the transmission gear are meshed with the driven gear. A square block is fixedly provided on the bottom surface of the screw, and the square block and the housing form a sliding structure that engages. The top surface of the screw is in contact with the lower surface of the push plate. The push plate penetrates the outer surface of the support block and the housing respectively. One end of the bottom surface of the push plate is inclined. The support block is located inside the housing.

[0014] Using the above technical solution, when the transmission gear is driven to rotate, the transmission gear will mesh with the driven gear, so that the driven gear rotates and meshes with the screw, thereby allowing the screw to slide. When the screw slides upward, the screw can squeeze the inclined surface of the push plate.

[0015] As a preferred embodiment of the present invention, a support spring is fixedly installed inside the support block, and a push plate is fixedly connected to the end of the support spring. The push plate and the support block form an elastic sliding structure through the support spring. A tension spring is fixedly connected to the bottom surface of the support block. The tension spring is fixedly installed inside the box body, and the box body and the support block form an elastic structure through the tension spring.

[0016] Using the above technical solution, when the push plate is pressed in an inclined shape, the push plate will slide in the support block and compress and charge the support spring. At this time, the tension spring that is stretched and charged will quickly pull the support block to move downward.

[0017] As a preferred embodiment of the present invention, a fixing rod is fixedly connected to the bottom surface of the support block, and a striking block is fixedly connected to the bottom surface of the fixing rod. The striking block is located above the barrier plate, and the barrier plate, the fixing rod, and the support block all form a sliding structure with the box body.

[0018] Using the above technical solution, the support block being pulled downwards will quickly drive the impact block on the fixed rod downwards, achieving an impact effect, thereby impacting the materials placed on the barrier plate.

[0019] As a preferred embodiment of the present invention, a fixing plate is fixedly connected to one side surface of the impact block, a support plate is fixedly provided on the bottom surface of the fixing plate, a fixing spring is fixedly provided inside the bottom end of the support plate, a support rod is fixedly connected to the bottom end of the fixing spring, the support rod and the fixing plate form a sliding elastic structure through the fixing spring, the support rod penetrates the bottom surface of the box, and an impact ball is fixedly connected to the bottom surface of the support rod.

[0020] Using the above technical solution, when the impact block moves downward, it can drive the fixed plate to move, which in turn drives the support plate to move. At this time, the support plate will drive the impact ball on the support rod to quickly smash the ground through the fixed spring, thereby achieving the function of bridge deck stiffness detection. At the same time, the impact force will rebound back to the fixed spring on the support rod, weakening the impact force.

[0021] As a preferred embodiment of the present invention, a connecting gear is connected to the outer surface of the transmission gear, and the outer surface of the connecting gear is penetrated by a second bolt. The second bolt and the connecting gear are threaded together, and the connecting gear and the transmission gear are meshed together. The second bolt penetrates the inner surface of the housing and the inner surface of the second test chamber respectively. A guide block is fixedly connected to the top surface of the second bolt. The guide block is square in shape and forms a sliding structure with the housing. A pressing block is fixedly connected to the bottom surface of the second bolt.

[0022] Using the above technical solution, when the transmission gear rotates, it can mesh with the connecting gear, causing the connecting gear to rotate. The connecting gear will then connect with the second bolt through a threaded connection, so that the second bolt, after being subjected to thread force, will only slide through the guide block and will not rotate. This achieves a different extrusion effect between the second bolt and the first bolt, thus achieving multiple testing effects.

[0023] Compared with the prior art, the beneficial effects of the present invention are: the portable bridge deck stiffness testing device for building bridges:

[0024] 1. The entire unit can be moved to the section of road to be tested using casters. The material to be tested can also be placed on the barrier plate at the same time. When the tension spring drives the support block to strike the material through the impact block on the fixed rod to achieve the first testing method, the impact block will drive the impact ball on the support rod to strike the bridge surface through the fixed plate and support plate, thereby achieving the effect of simultaneous testing.

[0025] 2. At the same time, the rotation of the handwheel and transmission gear will drive the first bolt to rotate through the limit block, so that the first bolt can be threaded into the housing. While rotating, it will rotate and squeeze the material inside the first test chamber downward, achieving the effect of the second detection method, which can cope with the detection of more factors.

[0026] 3. When the transmission gear rotates, it meshes with the connecting gear, allowing the connecting gear to connect with the second bolt via a thread. This allows the second bolt to move straight up and down via the guide block without rotating, achieving the second type of compression effect. Therefore, in summary, it has three detection methods: impact, rotational compression, and linear compression, and can detect the stiffness of various factors. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall front sectional structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall left sectional structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the overall right cross-sectional structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the overall top sectional structure of the present invention;

[0031] Figure 5 This is a top sectional view of the connection between the transmission gear and the connecting gear of the present invention.

[0032] Figure 6 This is a top sectional view of the connection between the limiting block and the handwheel in this invention.

[0033] In the diagram: 1. Housing; 2. Caster wheel; 3. Handwheel; 4. Transmission gear; 5. Limiting block; 6. First bolt; 7. First test chamber; 8. Driven gear; 9. Screw; 10. Square block; 11. Push plate; 12. Support block; 13. Support spring; 14. Tension spring; 15. Fixing rod; 16. Impact block; 17. Guide chute; 18. Barrier plate; 19. Fixing plate; 20. Support plate; 21. Fixing spring; 22. Support rod; 23. Impact ball; 24. Connecting gear; 25. Second bolt; 26. Guide block; 27. Extrusion block; 28. Second test chamber. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1-6This invention provides a technical solution: a portable bridge deck stiffness testing device for building bridges, comprising a housing 1, casters 2, handwheel 3, transmission gear 4, limiting block 5, first bolt 6, first test chamber 7, driven gear 8, screw 9, square block 10, push plate 11, support block 12, support spring 13, tension spring 14, fixing rod 15, impact block 16, guide trough 17, barrier plate 18, fixing plate 19, support plate 20, fixing spring 21, support rod 22, impact ball 23, connecting gear 24, second bolt 25, guide block 26, extrusion block 27, and second test chamber 28.

[0036] Box 1, which is the main outer shell structure of the testing equipment, has casters 2 fixedly installed on the bottom surface of box 1;

[0037] Handwheel 3 penetrates the top surface of housing 1, and a transmission gear 4 is fixedly installed on the bottom surface of handwheel 3;

[0038] The first test chamber 7 is opened on one side surface of the box body 1, and the second test chamber 28 is opened on the other side surface of the box body 1.

[0039] The material guide trough 17 is formed on the outer surface of the box 1, and the outer surfaces of both the box 1 and the material guide trough 17 are penetrated by the baffle plate 18.

[0040] The handwheel 3 has a limiting block 5 inside, which forms a sliding structure with the handwheel 3. The bottom surface of the limiting block 5 is fixedly connected to the first bolt 6, which passes through the outer surface of the transmission gear 4 and the inner surface of the first test cavity 7. The first bolt 6 is threaded to the housing 1. The limiting block 5 is square in shape. When the handwheel 3 rotates, it can drive the limiting block 5, which is limited and cannot rotate inside, to rotate together. At this time, the limiting block 5 will drive the first bolt 6 to rotate. Since the first bolt 6 is threaded to the housing 1, the first bolt 6 will rotate and slide downwards, achieving a downward pressing function that rotates and moves at the same time.

[0041] The outer surface of the transmission gear 4 is connected to the driven gear 8, and the outer surface of the driven gear 8 is penetrated by the screw 9. Both the screw 9 and the transmission gear 4 are meshed with the driven gear 8. A square block 10 is fixedly provided on the bottom surface of the screw 9, and the square block 10 and the housing 1 form a sliding structure that engages. The top surface of the screw 9 is in contact with the lower surface of the push plate 11. The push plate 11 penetrates the support block 12 and the outer surface of the housing 1 respectively. One end of the bottom surface of the push plate 11 is inclined. The support block 12 is located inside the housing 1. When the transmission gear 4 is driven to rotate, the transmission gear 4 will mesh with the driven gear 8, so that the driven gear 8 rotates and meshes with the screw 9, thereby allowing the screw 9 to slide. When the screw 9 slides upward, the screw 9 can squeeze the inclined surface of the push plate 11.

[0042] A support spring 13 is fixedly installed inside the support block 12. A push plate 11 is fixedly connected to the end of the support spring 13. The push plate 11 and the support block 12 form an elastic sliding structure through the support spring 13. A tension spring 14 is fixedly connected to the bottom surface of the support block 12. The tension spring 14 is fixedly installed inside the box body 1. The box body 1 and the support block 12 form an elastic structure through the tension spring 14. When the inclined surface of the push plate 11 is pressed, the push plate 11 will slide in the support block 12 and compress and charge the support spring 13. At this time, the tension spring 14, which is stretched and charged, will quickly pull the support block 12 downward.

[0043] A fixing rod 15 is fixedly connected to the bottom surface of the support block 12, and a striking block 16 is fixedly connected to the bottom surface of the fixing rod 15. The striking block 16 is located above the barrier plate 18. The barrier plate 18, the fixing rod 15, and the support block 12 all form a sliding structure with the box 1. When the support block 12 is pulled down, it will quickly drive the striking block 16 on the fixing rod 15 down, achieving a striking effect, thereby striking the material placed on the barrier plate 18.

[0044] A fixing plate 19 is fixedly connected to one side surface of the impact block 16. A support plate 20 is fixedly installed on the bottom surface of the fixing plate 19. A fixing spring 21 is fixedly installed inside the bottom end of the support plate 20. A support rod 22 is fixedly connected to the bottom end of the fixing spring 21. The support rod 22 forms a sliding elastic structure with the fixing plate 19 through the fixing spring 21. The support rod 22 penetrates the bottom surface of the box body 1. An impact ball 23 is fixedly connected to the bottom surface of the support rod 22. When the impact block 16 moves downward, the impact block 16 can drive the fixing plate 19 to move, which in turn drives the support plate 20 to move. At this time, the support plate 20 will drive the impact ball 23 on the support rod 22 to quickly hit the ground through the fixing spring 21, thereby achieving the function of bridge deck stiffness detection. At the same time, the impact force generated will rebound back to the fixing spring 21 on the support rod 22, weakening the impact force.

[0045] A connecting gear 24 is connected to the outer surface of the transmission gear 4. The outer surface of the connecting gear 24 is penetrated by a second bolt 25. The second bolt 25 and the connecting gear 24 are threadedly connected, and the connecting gear 24 and the transmission gear 4 are meshed. The second bolt 25 penetrates the inner surface of the housing 1 and the inner surface of the second test chamber 28. A guide block 26 is fixedly connected to the top surface of the second bolt 25. The guide block 26 is square in shape and forms a sliding structure with the housing 1. A pressing block 27 is fixedly connected to the bottom surface of the second bolt 25. When the transmission gear 4 rotates, the transmission gear 4 can mesh with the connecting gear 24, causing the connecting gear 24 to rotate. The connecting gear 24 is threadedly connected to the second bolt 25, so that the second bolt 25 slides only through the guide block 26 after being subjected to thread force and does not rotate. This achieves a pressing effect of the second bolt 25 that is different from that of the first bolt 6, thus achieving multiple testing effects.

[0046] Working principle: When using this portable bridge deck stiffness testing equipment for bridge construction, according to... Figure 1-6First, the housing 1 is moved to the position where the bridge deck stiffness needs to be tested using the casters 2. Then, the material to be paved and repaired is placed on the baffle plate 18 of the first test chamber 7, the second test chamber 28, and the guide chute 17. Then, the handwheel 3 is rotated. The handwheel 3 will drive the transmission gear 4 and the limiting block 5 to rotate. The limiting block 5 will drive the first bolt 6 to rotate. Through its threaded connection with the housing 1, the first bolt 6 rotates downwards while simultaneously pressing down on the material inside the first test chamber 7 to perform the first type of stiffness test. At the same time, the transmission gear 4 rotates... The gear 4 engages with the connecting gear 24, which is threaded onto the second bolt 25. The second bolt 25 descends linearly through the guide block 26 and passes through the extrusion block 27 to extrude the material in the second test chamber 28 for a second type of stiffness test. Simultaneously, the transmission gear 4 engages with the driven gear 8, causing the driven gear 8 to rotate and engage with the screw 9. This drives the screw 9 to slide through the square block 10 and extrude pressure on the inclined surface of the push plate 11. Consequently, the push plate 11 compresses the support spring 13, which slides within the support block 12. No longer subjected to the top pressure of screw 9, the support block 12 under the action of tension spring 14 is quickly pulled downward, allowing the support block 12 to quickly strike the material on the barrier plate 18 through the impact block 16 on the fixed rod 15, thus conducting a third stiffness test impact. At the same time, the impact block 16 will drive the support plate 20 downward through the fixed plate 19, and strike the bridge deck through the impact ball 23 on the support rod 22, and the fixed spring 21 will provide shock absorption, thereby achieving three different material stiffness tests and one bridge deck stiffness test. The impact detection function can complete four detection methods at once, which is very convenient. When it needs to be reset for use, the screw 9 can be lowered by rotating the handwheel 3 in the opposite direction. At this time, the push plate 11 will spring back to above the screw 9 under the action of the support spring 13. When the screw 9 rises again, the push plate 11 and the support block 12 can be pulled up to raise the tension spring 14 for charging, which is convenient for impact. This effectively prevents the support block 12 from rising under the action of the tension spring 14 due to insufficient manual force, thus increasing the overall practicality.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable bridge deck stiffness testing device for building bridges, characterized in that, include: Box (1), the box (1) is the main outer shell structure of the testing equipment, and the bottom surface of the box (1) is fixedly provided with casters (2). The handwheel (3) penetrates the top surface of the housing (1), and a transmission gear (4) is fixedly provided on the bottom surface of the handwheel (3). The first test chamber (7) is opened on one side surface of the box (1), and the second test chamber (28) is opened on the other side surface of the box (1). A guide trough (17) is formed on the outer surface of the box (1), and both the outer surfaces of the box (1) and the guide trough (17) are penetrated by a baffle plate (18); The handwheel (3) has a limiting block (5) inside. The limiting block (5) and the handwheel (3) form a sliding structure that engages. The bottom surface of the limiting block (5) is fixedly connected with a first bolt (6). The first bolt (6) passes through the outer surface of the transmission gear (4) and the inner surface of the first test cavity (7). The first bolt (6) is threadedly connected to the housing (1). The limiting block (5) is square in shape. The outer surface of the transmission gear (4) is connected to the driven gear (8), and the outer surface of the driven gear (8) is penetrated by the screw (9). The screw (9) and the transmission gear (4) are meshed with the driven gear (8). A square block (10) is fixedly provided on the bottom surface of the screw (9), and the square block (10) and the housing (1) form a sliding structure that engages. The top surface of the screw (9) is in contact with the lower surface of the push plate (11). The push plate (11) penetrates the outer surface of the support block (12) and the housing (1) respectively. One end of the bottom surface of the push plate (11) is inclined. The support block (12) is located inside the housing (1). A support spring (13) is fixedly installed inside the support block (12). A push plate (11) is fixedly connected to the end of the support spring (13). The push plate (11) and the support block (12) form an elastic sliding structure through the support spring (13). A tension spring (14) is fixedly connected to the bottom surface of the support block (12). The tension spring (14) is fixedly installed inside the box (1). The box (1) and the support block (12) form an elastic structure through the tension spring (14). A fixing rod (15) is fixedly connected to the bottom surface of the support block (12), and a striking block (16) is fixedly connected to the bottom surface of the fixing rod (15). The striking block (16) is located above the barrier plate (18). The barrier plate (18), the fixing rod (15) and the support block (12) all form a sliding structure with the box body (1). A fixing plate (19) is fixedly connected to one side surface of the impact block (16). A support plate (20) is fixedly installed on the bottom surface of the fixing plate (19). A fixing spring (21) is fixedly installed inside the bottom end of the support plate (20). A support rod (22) is fixedly connected to the bottom end of the fixing spring (21). The support rod (22) forms a sliding elastic structure with the fixing plate (19) through the fixing spring (21). The support rod (22) penetrates the bottom surface of the box (1). An impact ball (23) is fixedly connected to the bottom surface of the support rod (22).

2. The portable bridge deck stiffness testing device for building bridges according to claim 1, characterized in that: The outer surface of the transmission gear (4) is connected to a connecting gear (24). The outer surface of the connecting gear (24) is penetrated by a second bolt (25). The second bolt (25) and the connecting gear (24) are threaded together. The connecting gear (24) and the transmission gear (4) are meshed together. The second bolt (25) penetrates the inner surface of the housing (1) and the inner surface of the second test chamber (28) respectively. A guide block (26) is fixedly connected to the top surface of the second bolt (25). The guide block (26) is square in shape and forms a sliding structure with the housing (1). A pressing block (27) is fixedly connected to the bottom surface of the second bolt (25).

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