Convenient road deflection detection device for engineering
By designing a structure that integrates the main beam, secondary beam, support base, and dial gauge test piece, the problem of inconvenient loading and installation of the Beckman deflectometer was solved, enabling rapid assembly and disassembly, reducing the equipment length, and facilitating transportation and use.
Patent Information
- Application Number
- CN202520538152.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Existing Beckman deflectometers are inconvenient to load and install due to the long overall size of the support rod and lever, requiring multiple people to operate them.
Design a convenient road deflection detection device for engineering purposes. The main technical solution is to use a structure that integrates main and secondary beams, support plates, and brackets. The main and secondary beams are quickly assembled and disassembled through plug-in and snap-fit components. Locking is achieved using locking slots and plug-in slots, and auxiliary wheel sets are used for movement and locking.
It enables rapid assembly and disassembly of the main beam and secondary beam, facilitating loading and installation, reducing the equipment's service length, and improving operational convenience and stability.
Smart Images

Figure CN223936959U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of road surface measurement equipment, and in particular to a convenient road deflection detection device for engineering applications. Background Technology
[0002] A pavement deflectometer is a device used to determine the rebound deflection value of a pavement. It is primarily used to evaluate the overall strength and quality of the pavement. A commonly used type is the Beckman deflectometer, also known as a lever deflectometer or simply a Beckman beam. It measures the rebound deflection value of a pavement under vehicle loads. It can also measure the rebound deflection value of the entire subgrade and base course.
[0003] A Chinese patent with publication number CN208668232U discloses an automatic road deflection detection device, including a deflection meter body. The deflection meter body includes a support rod and a lever. A mounting plate is slidably sleeved on the top of the outer wall of the support rod, and a limit ring is fixedly sleeved on the outer wall of the support rod below the mounting plate. A connecting ring is slidably sleeved on the outer wall of the support rod above the mounting plate. Rotating rods are symmetrically hinged to the bottom side of the connecting ring on both sides of the support rod. A locking block is fixedly connected to the end of the rotating rod away from the connecting ring. Limit blocks are symmetrically fixedly connected to the bottom side of the connecting ring on the outer side of the two rotating rods. The mounting plate has symmetrically formed slots on the top side on both sides of the support rod.
[0004] Regarding the aforementioned technologies, the inventors discovered that existing Beckman deflectometers are often inconvenient to load and install due to the long overall size of the support rod and lever, requiring multiple people to cooperate during installation, making operation and use very inconvenient. Utility Model Content
[0005] For the purpose of facilitating folding and easy installation, this application provides a convenient road deflection detection device for engineering applications.
[0006] The technical solution of the convenient road deflection detection device for engineering applications provided in this application is as follows:
[0007] A convenient road deflection testing device for engineering applications includes a main beam, a secondary beam, and a support base. The secondary beam is installed at one end of the main beam and is fixed to the main beam via a plug-in assembly. A dial indicator is installed at the other end of the main beam. The support base is installed below the middle of the main beam and is rotatably connected to the main beam. Both the main beam and the secondary beam include a central frame and side frames. The side frames are symmetrically installed at both ends of the central frame, with one side of the side frame rotatably connected to the central frame and the other side of the side frame having a locking assembly that interlocks with the central frame.
[0008] By adopting the above technical solution, the road deflection detection device is designed with a main beam, secondary beam, support base, and dial indicator test piece. When easy to use, the main beam and secondary beam can be quickly assembled and connected; when not in use, they can be disassembled for easier loading and transportation. Furthermore, the main beam and secondary beam are configured with a central frame and two sets of side frames. This allows the side frames at both ends of the central frame to be flipped for use, and when not in use, they can be flipped and attached to the central frame. This effectively reduces the length of the equipment in use, and allows for flexible deployment when needed. The side frames at both ends are flipped to the ends of the middle frame for use. At the same time, by installing locking components on the side frames, it is possible to quickly lock them when the side frames are flipped out for use, ensuring a stable connection between the side frames and the middle frame. Moreover, the locking components can be slidably operated, so that the locking can be quickly released when the side frames need to be bent. It has the advantages of convenient operation and good locking effect. Furthermore, by setting plug-in components between the sub-beam rods and the main beam rods, it is convenient to quickly connect them when needed, and it is also convenient to quickly disassemble them when not in use.
[0009] Optionally, the two sides of the middle frame are provided with locking slots for sliding installation of the locking assembly, and the side frame is provided with a corresponding insertion slot for the locking assembly. The middle part of the middle frame is provided with a connecting shaft for mounting the support base, and the connecting shaft is fixedly connected to the middle frame.
[0010] By adopting the above technical solution, locking slots are opened on both sides of the middle frame, which facilitates the installation of locking components during use. At the same time, the setting of the plug slot is used to cooperate with the locking slot for locking. This ensures that when locking is required, the locking component can be directly slid into the locking slot for locking. Furthermore, by setting a connecting shaft in the middle of the middle frame, the support base can stably support the middle frame. At the same time, it can also ensure that the middle frame can be stably rotated and adjusted on the support base during measurement.
[0011] Optionally, the support includes a seat plate and a bracket. An auxiliary wheel set is symmetrically mounted on the lower end face of the seat plate. The auxiliary wheel set is rotatably connected to the seat plate. The bracket is mounted on the upper end face of the seat plate and is fixedly connected to the seat plate.
[0012] By adopting the above technical solution, the support base is designed as a structure in which a base plate and a bracket cooperate. When in use, the bracket can be supported by the base plate. At the same time, by installing auxiliary wheels at the lower end of the base plate, it is easier to move and use. The auxiliary wheels are also equipped with a corresponding locking structure to ensure that they can be locked after being placed in the determined position, thus ensuring stability during the measurement process. The bracket is designed to cooperate with the connecting shaft on the middle frame, so that the two can be stably rotated and connected.
[0013] Optionally, the bracket includes a support shell and side lugs rotatably connected to the connecting shaft. The support shell is fixedly installed on the upper end face of the seat plate, and the side lugs are symmetrically installed on the upper end face of the support shell, and the side lugs are integrally formed with the support shell.
[0014] By adopting the above technical solution, the bracket is designed with a structure in which the support shell and the side lugs cooperate. When in use, the support shell can be fixedly installed on the upper surface of the seat plate, and then the two sets of side lugs can be rotated and installed on the connecting shaft to achieve mutual cooperation and connection between the two.
[0015] Optionally, the engaging assembly includes an elastic bracket and a movable socket. The elastic bracket is fixedly installed at both ends of the central frame, and the movable socket is installed on one side of the elastic bracket and is slidably connected to the central frame.
[0016] By adopting the above technical solution, the locking assembly is designed as a structure that combines a flexible bracket and a movable socket. When in use, it can be fixedly installed on the middle frame by the flexible bracket, and then the movable socket can be supported by the flexible bracket, so that the movable socket can be stably inserted into the locking slot for locking connection.
[0017] Optionally, the elastic support includes a frame base, a support spring, and a connecting plate. The frame base is fixedly installed on one side of the central frame, the support springs are evenly installed on one side of the frame base, and one end of the support spring is fixedly connected to the frame base. The connecting plate is fixedly connected to the other end of the support spring.
[0018] By adopting the above technical solution, the elastic bracket is designed as a structure in which the bracket, support spring and connecting plate cooperate. This ensures that it can be fixedly installed on one side of the middle frame through the bracket during use. At the same time, by fixing the support spring on the bracket and fixing the connecting plate on the support spring, the connecting plate can cooperate with the movable socket to achieve the purpose of stable support for the movable socket and ensure the stability of the movable socket when it is plugged in and locked.
[0019] Optionally, the movable socket includes a middle housing and a limiting slide plate. The limiting slide plate is symmetrically installed at the upper and lower ends of the middle housing and is integrally formed with the middle housing. A handle is fixedly installed on the outer side of the middle housing.
[0020] By adopting the above technical solution, the movable socket is designed with a structure in which the middle shell and the limiting slide plate cooperate. In this way, the limiting slide plate can be installed through the middle shell during use, ensuring that the upper and lower limiting slide plates can move synchronously through the middle shell. The limiting slide plates can then cooperate with the plug slot to lock. By fixing a handle on the middle shell, it is convenient for the operator to slide and adjust the socket more easily.
[0021] Optionally, the plug-in assembly includes a back plate, plug rods, and a limiting frame. The plug rods are evenly installed on the four corners of one side of the back plate and are fixedly connected to the back plate. The side frame has plug holes for installing the plug rods. The limiting frame includes a main frame plate and a lever plate. The lever plate is fixedly installed on one end of the main frame plate. The plug rod has a slot for installing the main frame plate.
[0022] By adopting the above technical solution, the plug-in assembly is designed as a structure in which a back plate, plug rod, and limiting frame cooperate. When easy to use, the plug rod can be installed through the back plate, ensuring that the main beam rod and the secondary beam rod can be connected by inserting the plug rod into the plug hole. After the plug rod is inserted into the plug hole, the limiting frame can limit and lock the plug rod, ensuring that the plug rod can be stably locked to each other. By designing the limiting frame as a structure in which a main frame plate and a lever plate cooperate, when easy to use, the main frame plate can cooperate with the slot opened on the plug rod. The lever plate is set to ensure better plug-in operation during use.
[0023] Optionally, two sets of positioning strips are symmetrically installed on the end of the main frame plate away from the push plate. The positioning strips are slidably connected to the main frame plate, and an ejector spring supporting the positioning strips is fixedly installed in the main frame plate.
[0024] By adopting the above technical solution, by installing two sets of positioning clips in the main frame plate and supporting the positioning clips with push-out springs, it is ensured that the main frame plate can be locked by the positioning clips after being inserted into the plug rod.
[0025] In summary, this application includes at least one of the following beneficial technical effects: By designing the main beam and secondary beam as detachable structures, they can be quickly connected and installed using plug-in components when in use, and when not in use, the plug-in components can be disassembled to directly separate the main beam and secondary beam. Furthermore, both the main beam and secondary beam adopt a structure with a central frame and two sets of side frames, ensuring that both the main beam and secondary beam can be flipped and folded during use, effectively reducing the overall length of the equipment. This not only facilitates loading but also makes installation easier for personnel. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application.
[0027] Figure 2 This is a perspective view of the main beam and support seat in the embodiment of this application.
[0028] Figure 3 yes Figure 2 Front view of the device shown.
[0029] Figure 4 This is a perspective view of the plug-in component in the embodiments of this application.
[0030] Figure 5 yes Figure 4 Front view of the device shown.
[0031] Explanation of reference numerals in the attached drawings: 1. Main beam rod; 11. Middle frame; 111. Locking slot; 112. Connecting shaft rod; 12. Side frame; 120. Insertion slot; 121. Insertion hole; 2. Sub-beam rod; 3. Support seat; 31. Seat plate; 311. Auxiliary wheel set; 32. Bracket; 321. Support shell; 322. Side ear plate; 4. Dial indicator test piece; 5. Engaging assembly; 51. Elastic bracket; 511. Frame base; 512. Support spring; 513. Connecting plate; 52. Movable socket; 521. Middle seat shell; 522. Limiting slide plate; 523. Grip; 6. Insertion assembly; 61. Back plate; 62. Insertion rod; 621. Slot; 63. Limiting insertion frame; 631. Main frame plate; 632. Pulley plate; 633. Positioning clip; 634. Ejection spring. Detailed Implementation
[0032] The present application will be further described in detail below with reference to the accompanying drawings.
[0033] This application discloses a convenient road deflection detection device for engineering applications. (Refer to...) Figure 1 , Figure 2 and Figure 3As shown, a convenient road deflection testing device for engineering applications includes a main beam 1, a secondary beam 2, and a support base 3. The secondary beam 2 is installed at one end of the main beam 1 and is fixed to the main beam 1 via a plug-in assembly 6. A dial indicator test piece 4 is installed at the other end of the main beam 1. The support base 3 is installed below the middle of the main beam 1 and is rotatably connected to the main beam 1. Both the main beam 1 and the secondary beam 2 include a central frame 11 and a side frame 12. The side frames 12 are symmetrically installed at both ends of the central frame 11, and one side of the side frame 12 is rotatably connected to the central frame 11. The other side of the side frame 12 is equipped with a locking assembly 5 that locks with the central frame 11. By configuring the road deflection detection device into a structure consisting of a main beam 1, a secondary beam 2, a support base 3, and a dial indicator test piece 4, the main beam 1 and secondary beam 2 can be quickly assembled and connected when in use, and can be disassembled when not in use, facilitating loading and transportation. Furthermore, the main beam 1 and secondary beam 2 are configured as a central frame 11 and two sets of side frames 12, allowing the side frames 12 at both ends of the central frame 11 to be flipped for use. When not in use, the side frames 12 at both ends can be flipped and attached to the central frame 11, effectively reducing the length of the equipment in use. When needed, the side frames at both ends can be... The side frame 12 is flipped to both ends of the middle frame 11 for use. Simultaneously, by installing locking components 5 on the side frame 12, it is ensured that when the side frame 12 is flipped out for use, it can be quickly locked using the locking components 5, ensuring a stable connection between the side frame 12 and the middle frame 11. Furthermore, the locking components 5 can be slidably operated, allowing for quick unlocking when the side frame 12 needs to be bent. This provides advantages such as convenient operation and good locking effect. Additionally, by setting plug-in components 6 between the secondary beam 2 and the main beam 1, it is convenient to quickly connect when needed, and also facilitates quick disassembly when not in use. The middle frame 11 has locking slots 111 on both sides for sliding installation of the locking components 5, and the side frame 12 has corresponding plug-in slots 120. A connecting shaft 112 for mounting the support base 3 is provided in the middle of the middle frame 11, and the connecting shaft 112 is fixedly connected to the middle frame 11. By opening locking slots 111 on both sides of the middle frame 11, the locking assembly 5 can be installed through the locking slots 111 for convenient use. At the same time, the insertion slot 120 is set to cooperate with the locking slots 111 for locking. This ensures that when locking is required, the locking assembly 5 can be directly slid into the locking slots 111 for locking. Furthermore, by setting a connecting shaft 112 in the middle of the middle frame 11, the support base 3 can stably support the middle frame 11. At the same time, it can also ensure that the middle frame 11 can be stably flipped and adjusted on the support base 3 during measurement.
[0034] Reference Figure 2 and Figure 3As shown, the support base 3 includes a base plate 31 and a bracket 32. An auxiliary wheel set 311 is symmetrically mounted on the lower end face of the base plate 31, and the auxiliary wheel set 311 is rotatably connected to the base plate 31. The bracket 32 is mounted on the upper end face of the base plate 31 and is fixedly connected to the base plate 31. By designing the support base 3 with a structure in which the base plate 31 and the bracket 32 cooperate, the bracket 32 can be supported and mounted using the base plate 31. Simultaneously, the auxiliary wheel set 311 is mounted on the lower end of the base plate 31, facilitating easier movement during use. The auxiliary wheel set 311 also has a corresponding locking structure, ensuring that it can be locked after being placed in the determined position, guaranteeing stability during the measurement process. The bracket 32 facilitates cooperation with the connecting shaft 112 on the middle frame 11, allowing for a stable rotational connection between the two. The bracket 32 includes a housing 321 and side lugs 322 rotatably connected to the connecting shaft 112. The housing 321 is fixedly installed on the upper end face of the seat plate 31, and the side lugs 322 are symmetrically installed on the upper end face of the housing 321, and the side lugs 322 and the housing 321 are integrally formed. By setting the bracket 32 into a structure in which the housing 321 and the side lugs 322 cooperate, it is convenient to use the housing 321 to be fixedly installed on the upper end face of the seat plate 31, and then the two sets of side lugs 322 are rotatably installed on the connecting shaft 112 to achieve mutual cooperation and connection between the two.
[0035] Reference Figure 2 and Figure 3As shown, the locking assembly 5 includes an elastic bracket 51 and a movable socket 52. The elastic bracket 51 is fixedly installed at both ends of the middle frame 11, and the movable socket 52 is installed on one side of the elastic bracket 51, and the movable socket 52 is slidably connected to the middle frame 11. By designing the locking assembly 5 into a structure in which the elastic bracket 51 and the movable socket 52 cooperate, it can be easily fixedly installed on the middle frame 11 using the elastic bracket 51, and then the movable socket 52 can be supported by the elastic bracket 51, so that the movable socket 52 can be stably inserted into the locking slot 111 for locking connection. The elastic bracket 51 includes a base 511, a support spring 512, and a connecting plate 513. The base 511 is fixedly installed on one side of the middle frame 11, the support spring 512 is evenly installed on one side of the base 511, and one end of the support spring 512 is fixedly connected to the base 511, and the connecting plate 513 is fixedly connected to the other end of the support spring 512. By designing the elastic bracket 51 into a structure that combines a base 511, a support spring 512, and a connecting plate 513, it is ensured that the base 511 can be fixedly installed on one side of the middle frame 11 during use. Simultaneously, by fixing the support spring 512 to the base 511 and the connecting plate 513 to the support spring 512, the connecting plate 513 can cooperate with the movable socket 52 to achieve stable support for the movable socket 52, ensuring the stability of the movable socket 52 during insertion and locking. The movable socket 52 includes a middle housing 521 and a limiting slide plate 522. The limiting slide plate 522 is symmetrically installed at the upper and lower ends of the middle housing 521, and is integrally formed with the middle housing 521. A handle 523 is fixedly installed on the outer surface of the middle housing 521. By designing the movable socket 52 into a structure in which the middle base shell 521 and the limiting slide plate 522 cooperate, the limiting slide plate 522 can be installed through the middle base during use. This ensures that the limiting slide plates 522 at both ends can move synchronously through the middle base during use, and the limiting slide plates 522 can cooperate with the plug slot 120 to lock. By fixing the handle 523 on the middle base shell 521, the operator can better slide and adjust it through the handle 523.
[0036] Reference Figure 4 and Figure 5As shown, the plug-in assembly 6 includes a back plate 61, plug rods 62, and a limiting frame 63. The plug rods 62 are evenly installed at the four corners of one side of the back plate 61, and the plug rods 62 are fixedly connected to the back plate 61. The side frame 12 has a plug hole 121 for installing the plug rods 62. The limiting frame 63 includes a main frame plate 631 and a lever plate 632. The lever plate 632 is fixedly installed at one end of the main frame plate 631. The plug rods 62 have a slot 621 for installing the main frame plate 631. By designing the plug-in assembly 6 as a structure in which the back plate 61, the plug rod 62, and the limiting frame 63 cooperate, the plug rod 62 can be installed through the back plate 61 when it is easy to use, ensuring that the main beam rod 1 and the secondary beam rod 2 can be connected by inserting the plug rod 62 into the plug hole 121. After the plug rod 62 is inserted into the plug hole 121, the limiting frame 63 can limit and lock the plug rod 62, ensuring that the plug rod 62 can be stably locked to each other. By designing the limiting frame 63 as a structure in which the main frame plate 631 and the lever plate 632 cooperate, the main frame plate 631 can cooperate with the slot 621 opened on the plug rod 62 when it is easy to use, and the lever plate 632 is set to ensure better plug-in operation during use. Two sets of positioning strips 633 are symmetrically installed on the end of the main frame plate 631 away from the lever plate 632. The positioning strips 633 are slidably connected to the main frame plate 631, and a push-out spring 634 supporting the positioning strips 633 is fixedly installed in the main frame plate 631. By installing two sets of positioning strips 633 in the main frame plate 631 and supporting the positioning strips 633 with the push-out spring 634, it is ensured that the main frame plate 631 can be locked through the positioning strips 633 after being inserted into the plug rod 62.
[0037] The implementation principle of the convenient road deflection detection device for engineering purposes according to this application embodiment is as follows: When not in use, the plug-in component 6 is disassembled from the main beam 1 and the secondary beam 2, and then the main beam 1 and the secondary beam 2 can be separated from each other. After the main beam 1 and the secondary beam 2 are folded, they can be loaded for use. When needed, the main beam 1 and the secondary beam 2 are flipped and unfolded, and locked by the locking component 5. After unfolding, the main beam 1 and the secondary beam 2 can be spliced together, and finally locked by the plug-in component 6.
[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A convenient road deflection detection device for engineering projects, comprising a main beam (1), a secondary beam (2), and a support base (3), characterized in that: The secondary beam (2) is installed at one end of the main beam (1), and the secondary beam (2) is fixed to the main beam (1) by a plug-in assembly (6). A dial gauge test piece (4) is installed at the other end of the main beam (1). The support seat (3) is installed below the middle part of the main beam (1), and the support seat (3) is rotatably connected to the main beam (1). Both the main beam (1) and the secondary beam (2) include a middle frame (11) and a side frame (12). The side frame (12) is symmetrically installed at both ends of the middle frame (11), and one side of the side frame (12) is rotatably connected to the middle frame (11). The other side of the side frame (12) is equipped with a locking assembly (5) that locks with the middle frame (11).
2. The convenient road deflection detection device for engineering applications according to claim 1, characterized in that: The middle frame (11) has locking slots (111) on both sides for sliding installation of the locking assembly (5), and the side frame (12) has insertion slots (120) corresponding to the locking assembly (5). The middle part of the middle frame (11) is provided with a connecting shaft (112) for installation of the support base (3), and the connecting shaft (112) is fixedly connected to the middle frame (11).
3. The convenient road deflection detection device for engineering applications according to claim 2, characterized in that: The support base (3) includes a seat plate (31) and a bracket (32). An auxiliary wheel set (311) is symmetrically installed on the lower end face of the seat plate (31). The auxiliary wheel set (311) is rotatably connected to the seat plate (31). The bracket (32) is installed on the upper end face of the seat plate (31) and is fixedly connected to the seat plate (31).
4. The convenient road deflection detection device for engineering applications according to claim 3, characterized in that: The bracket (32) includes a support shell (321) and a side ear plate (322) rotatably connected to the connecting shaft (112). The support shell (321) is fixedly installed on the upper end face of the seat plate (31), and the side ear plate (322) is symmetrically installed on the upper end face of the support shell (321). The side ear plate (322) and the support shell (321) are integrally formed.
5. The convenient road deflection detection device for engineering applications according to claim 4, characterized in that: The locking assembly (5) includes an elastic bracket (51) and a movable socket (52). The elastic bracket (51) is fixedly installed at both ends of the middle frame (11), and the movable socket (52) is installed on one side of the elastic bracket (51) and is slidably connected to the middle frame (11).
6. The convenient road deflection detection device for engineering applications according to claim 5, characterized in that: The elastic support (51) includes a frame (511), a support spring (512), and a connecting plate (513). The frame (511) is fixedly installed on one side of the middle frame (11). The support spring (512) is evenly installed on one side of the frame (511), and one end of the support spring (512) is fixedly connected to the frame (511). The connecting plate (513) is fixedly connected to the other end of the support spring (512).
7. The convenient road deflection detection device for engineering applications according to claim 6, characterized in that: The active socket (52) includes a middle base shell (521) and a limiting slide plate (522). The limiting slide plate (522) is symmetrically installed at the upper and lower ends of the middle base shell (521), and the limiting slide plate (522) is integrally formed with the middle base shell (521). A handle (523) is fixedly installed on the outer side of the middle base shell (521).
8. The convenient road deflection detection device for engineering applications according to claim 7, characterized in that: The plug-in assembly (6) includes a back plate (61), a plug rod (62), and a limiting frame (63). The plug rod (62) is evenly installed on the four corners of one side of the back plate (61), and the plug rod (62) is fixedly connected to the back plate (61). The side frame (12) is provided with a plug hole (121) for the plug rod (62) to be installed. The limiting frame (63) includes a main frame plate (631) and a lever plate (632). The lever plate (632) is fixedly installed on one end of the main frame plate (631). The plug rod (62) is provided with a slot (621) for the main frame plate (631) to be installed.
9. A convenient road deflection detection device for engineering applications according to claim 8, characterized in that: Two sets of positioning clips (633) are symmetrically installed on one end of the main frame plate (631) away from the dial plate (632). The positioning clips (633) are slidably connected to the main frame plate (631), and a push-out spring (634) supporting the positioning clips (633) is fixedly installed in the main frame plate (631).
Citation Information
Patent Citations
Automatic deflection detection device of road
CN208668232U