Auxiliary beam installation limiting structure

Abstract

The utility model relates to the technical field of construction auxiliary beams, and discloses an auxiliary beam installation limiting structure which comprises a longitudinal beam, a base, a cross beam, a first installation plate and a second installation plate. According to the auxiliary beam installation limiting structure, by arranging a first installation bolt, a second installation bolt and an installation threaded cylinder, people can conveniently install and connect a first installation plate and a second installation plate, and the positions of a first limiting block and a second limiting block can be adjusted by rotating a first rotary knob and a second rotary knob correspondingly; through movement of a first limiting block and a second limiting block, a longitudinal beam rib plate can be clamped from the two sides, symmetrical rigid constraint can be formed, longitudinal beam displacement is prevented, through arrangement of a placement groove, a second mounting plate can be embedded into the longitudinal beam, a second contraction box can be stored, exposed structure interference is reduced, and through transmission of a worm gear and a worm, the longitudinal beam rib plate can be clamped from the two sides. A high reduction ratio and a self-locking function can be provided, millimeter-level adjustment of the limiting block can be achieved, and looseness is avoided after long-term use.

Description

Technical Field

[0001] This application relates to the field of construction temporary beam technology, specifically a temporary beam installation limiting structure. Background Technology

[0002] During construction, to resolve the conflict between construction and train operation, temporary construction beams are erected and dismantled for bridges or culverts. Specifically, these temporary construction beams are temporary structures used during bridge construction on existing lines or at stations to allow for bridge and culvert excavation and construction without disrupting traffic. After the bridge and culvert construction is completed, the temporary beams are removed, the track is restored, and trains resume normal speed operation.

[0003] An existing patent (publication number: CN218580470U) discloses a railway splicing construction temporary beam, belonging to the technical field of construction temporary beams. It includes a left railway construction temporary beam and a right railway construction temporary beam, with a right railway construction temporary beam located on the right side of the left beam. Both the left and right railway construction temporary beams have auxiliary moving mechanisms on their outer sides. Splicing mechanisms are located on the front and rear sides of both beams. A first horizontal rail is located on the opposite surfaces of the left and right railway construction temporary beams, and a second horizontal rail is located below the first horizontal rail. Both the first and second horizontal rails have through holes. Multiple limiting protrusions are located below the second horizontal rail. Connecting corners are located on the front and rear sides of each limiting protrusion, and a crossbar is connected to the bottom surface of the connecting corner. The construction temporary beam is spliced ​​and installed by connecting the protrusions with the insertion holes, then rotating the connecting bolts to fix them.

[0004] While the device in the aforementioned comparative document solves the problem that the existing temporary beams have limited construction length and cannot cope with construction environments of varying lengths, the device lacks an installation limiting structure and the limiting is relatively simple. After the beam is installed, the adjustment accuracy of the limiting device is insufficient, which can easily lead to large positioning deviations of the temporary beam. In order to solve the above problems, a temporary beam installation limiting structure is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a temporary beam installation limiting structure, which has advantages such as a simple installation limiting structure and solves the problem that the limiting device is relatively simple and the adjustment accuracy is insufficient after the beam is installed, which can easily lead to large positioning deviations of the temporary beam.

[0006] To achieve the above objectives, this application provides the following technical solution: a temporary beam installation limiting structure, including a longitudinal beam, a base, a crossbeam, a first mounting plate and a second mounting plate, wherein there are two longitudinal beams and a crossbeam is provided between the two longitudinal beams, and there are two bases, wherein the two longitudinal beams are respectively provided on the top of the two bases, and multiple stiffening plates are provided on both opposite sides of the longitudinal beams;

[0007] The base has two first mounting bolts on its top. The first mounting plate has two first mounting holes on its top. The top of each first mounting bolt is positioned in one of the first mounting holes and threadedly connected to a threaded cylinder. The first mounting plate has a first shrink box fixedly connected to its top. The first shrink box has a first threaded cylinder slidably connected inside it. One end of the first threaded cylinder is fixedly connected to a first limiting block. The first limiting block has a groove inside it. A reinforcing rib is positioned in the groove. The longitudinal beam has a placement groove inside it. The second mounting plate is positioned in the placement groove. The base has two second mounting bolts on its top. The second mounting plate has two second mounting holes on its top. The top of each second mounting bolt is positioned in one of the second mounting holes and threadedly connected to a threaded cylinder. The second mounting plate has a second shrink box fixedly connected to its top. The second shrink box has a second threaded cylinder slidably connected inside it. One end of the second threaded cylinder is fixedly connected to a second limiting block.

[0008] The above scheme facilitates the installation and connection of the first and second mounting plates by setting the first mounting bolt, the second mounting bolt, and the mounting threaded cylinder. After installation, the movement of the first and second limiting blocks can clamp the longitudinal beam stiffeners from both sides, forming a symmetrical rigid constraint to prevent longitudinal beam displacement. By setting the placement groove, the second mounting plate can be embedded inside the longitudinal beam, which can accommodate the second shrink box and reduce interference from the exposed structure.

[0009] Furthermore, a first rotating shaft is tightly nested inside the first shrink box via bearings, a first threaded rod is fixedly connected to one end of the first rotating shaft, a first threaded cylinder is threadedly connected to the surface of the first threaded rod, a first worm gear is fixedly connected to the surface of the first rotating shaft, a first transmission rod is tightly nested on the top of the first shrink box via bearings, a first worm is fixedly connected to the surface of the first transmission rod, and the first worm gear and the first worm mesh with each other.

[0010] Through the above scheme, linear thrust can be generated by the meshing of the first threaded rod and the first threaded cylinder. Precise adjustment of the first limit block can be achieved through threaded transmission. The meshing of the first worm gear and the first worm has a large reduction ratio, which can achieve precise adjustment. At the same time, the self-locking characteristic can prevent the clamping from loosening.

[0011] Furthermore, a first knob is fixedly connected to the top of the first transmission rod, and multiple limiting rods are fixedly connected to the side of the first limiting block. One end of each limiting rod slides through the side of the first shrink box and is fixedly connected to a first limiting plate.

[0012] The above scheme provides power for the rotation of the first transmission rod by setting a first knob and rotating the first knob. By setting a limit rod and a first limit plate, the rotation of the limit block can be prevented, thus ensuring the accuracy of linear movement.

[0013] Furthermore, the inner side of the second shrink box is connected to a second rotating shaft via a bearing, and one end of the second rotating shaft is fixedly connected to a second threaded rod, with the second threaded cylinder threadedly connected to the second threaded rod.

[0014] With the above scheme, by setting a second rotating shaft, the power of the second worm gear can be transmitted to the second threaded rod. Through the threaded connection between the second threaded rod and the second threaded cylinder, the linear movement of the second limit block can be realized.

[0015] Furthermore, a second worm gear is fixedly connected to the surface of the second rotating shaft, a second transmission rod is tightly nested on the side of the second shrink box via a bearing, a second worm is fixedly connected to the surface of the second transmission rod, the second worm gear and the second worm mesh with each other, and a second knob is fixedly connected to one end of the second transmission rod.

[0016] The above scheme provides a symmetrical self-locking function by meshing the second worm gear with the second worm, preventing bidirectional loosening. By setting a second knob, power can be provided for the rotation of the second transmission rod.

[0017] Furthermore, a second limiting plate is fixedly connected to the surface of the second threaded cylinder, and the second limiting plate is slidably connected inside the second shrink box.

[0018] The above solution, by setting a second limiting plate, can restrict the rotation of the second threaded cylinder and ensure linear movement.

[0019] Furthermore, two insertion holes are provided on one side of the longitudinal beam, and two sockets are fixedly connected to the other side of the longitudinal beam.

[0020] The above solution provides a modular connection interface by setting up sockets and outlets, allowing adjacent longitudinal beams to be quickly spliced ​​together, supporting the splicing of multiple longitudinal beams and adapting to different span requirements.

[0021] Furthermore, both the socket and the receptacle are provided with threaded holes for connection.

[0022] The above solution simplifies the installation process by using bolts to fix the device through the provided threaded holes.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This convenient beam installation limiting structure, by setting a first mounting bolt, a second mounting bolt, and a mounting threaded cylinder, facilitates the installation and connection of the first mounting plate and the second mounting plate. After installation, rotating the first and second knobs respectively removes the first and second threaded cylinders from the first and second shrink boxes, allowing adjustment of the positions of the first and second limiting blocks. Through the movement of the first and second limiting blocks, the longitudinal beam stiffeners can be clamped from both sides, forming a symmetrical rigid constraint to prevent longitudinal beam displacement. By setting a placement groove, the second mounting plate can be embedded inside the longitudinal beam, and the second shrink box can be housed, reducing interference from exposed structures. Through the transmission of worm gear and worm, a high reduction ratio and self-locking function can be provided, enabling millimeter-level adjustment of the limiting blocks and preventing loosening during long-term use. Attached Figure Description

[0025] Figure 1 This is a frontal three-dimensional structural diagram of this application;

[0026] Figure 2 This is a side-view perspective three-dimensional structural diagram of this application;

[0027] Figure 3 This is a schematic diagram of the socket structure in this application;

[0028] Figure 4 This is a structural schematic diagram of the cross-section of the first shrink box in this application;

[0029] Figure 5 This is a structural schematic diagram of the cross-section of the second shrink box in this application.

[0030] In the picture:

[0031] 1. Longitudinal beam; 101. Insertion hole; 102. Socket; 103. Threaded connection hole; 104. Placement slot; 105. Stiffening plate;

[0032] 2. Base; 201. First mounting bolt; 202. Second mounting bolt;

[0033] 3. Crossbeam;

[0034] 4. First mounting plate; 401. First mounting hole; 402. First shrink box; 403. First rotating shaft; 404. First threaded rod; 405. First threaded cylinder; 406. First limiting block; 407. Limiting rod; 408. First limiting plate; 409. First worm gear; 4010. First transmission rod; 4011. First knob; 4012. First worm; 4013. Groove;

[0035] 5. Second mounting plate; 501. Second mounting hole; 502. Second shrink box; 503. Second rotating shaft; 504. Second worm gear; 505. Second threaded rod; 506. Second threaded cylinder; 507. Second limiting plate; 508. Second limiting block; 509. Second transmission rod; 5010. Second knob; 5011. Second worm gear;

[0036] 6. Install the threaded cylinder. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] Please see Figure 3 , Figure 4 and Figure 5 The present embodiment of a temporary beam installation limiting structure includes a longitudinal beam 1, a base 2, a crossbeam 3, a first mounting plate 4 and a second mounting plate 5. There are two longitudinal beams 1, and a crossbeam 3 is provided between the two longitudinal beams 1. There are two bases 2, and the two longitudinal beams 1 are respectively provided on the top of the two bases 2. Multiple stiffening plates 105 are provided on both sides of the longitudinal beams 1.

[0039] The base 2 has two first mounting bolts 201 on its top. The first mounting plate 4 has two first mounting holes 401 on its top. The top of the first mounting bolts 201 is placed in the first mounting holes 401 and threadedly connected to a threaded cylinder 6. The top of the first mounting plate 4 is fixedly connected to a first shrink box 402. The first shrink box 402 is slidably connected to a first threaded cylinder 405. One end of the first threaded cylinder 405 is fixedly connected to a first limiting block 406. The first limiting block 406 has a groove 4013 inside. A stiffening plate 105 is placed in the groove 4013. The longitudinal beam 1 has a placement groove 104 inside. The second mounting plate 5 is placed in the placement groove 104. The base 2 has two second mounting bolts 202 on its top. The second mounting plate 5 has two second mounting holes 501 on its top. The top of the first mounting plate 4 is located in the second mounting hole 501 and is threadedly connected to the mounting threaded cylinder 6. The top of the second mounting plate 5 is fixedly connected to the second shrink box 502. The second threaded cylinder 506 is slidably connected inside the second shrink box 502. One end of the second threaded cylinder 506 is fixedly connected to the second limiting block 508. By setting the first mounting bolt 201, the second mounting bolt 202 and the mounting threaded cylinder 6, it is convenient for people to install and connect the first mounting plate 4 and the second mounting plate 5. After installation, by moving the first limiting block 406 and the second limiting block 508, the stiffening plate 105 of the longitudinal beam 1 can be clamped from both sides, which can form a symmetrical rigid constraint to prevent the longitudinal beam 1 from shifting. By setting the placement groove 104, the second mounting plate 5 can be embedded inside the longitudinal beam 1, which can accommodate the second shrink box 502 and reduce interference from the exposed structure.

[0040] Please see Figure 4 and Figure 5The first shrink box 402 has a first rotating shaft 403 tightly nested inside its inner side via bearings. One end of the first rotating shaft 403 is fixedly connected to a first threaded rod 404. A first threaded cylinder 405 is threadedly connected to the surface of the first threaded rod 404. A first worm gear 409 is fixedly connected to the surface of the first rotating shaft 403. The top of the first shrink box 402 has a first transmission rod 4010 tightly nested inside its top via bearings. A first worm gear 4012 is fixedly connected to the surface of the first transmission rod 4010. The first worm gear 409 and the first worm gear 4012 mesh with each other. Through the meshing of the first threaded rod 404 and the first threaded cylinder 405, a linear thrust can be generated. Through threaded transmission, the first limit can be achieved. The precise adjustment of the positioning block 406 is achieved through the meshing of the first worm gear 409 and the first worm 4012, which has a large reduction ratio and can achieve precise adjustment. Simultaneously, its self-locking characteristic prevents loosening of the clamp. A first knob 4011 is fixedly connected to the top of the first transmission rod 4010. Multiple limiting rods 407 are fixedly connected to the side of the first limiting block 406. One end of each limiting rod 407 slides through the side of the first shrink box 402 and is fixedly connected to a first limiting plate 408. By setting the first knob 4011, rotation of the first knob 4011 provides power for the rotation of the first transmission rod 4010. By setting the limiting rods 407 and the first limiting plate 408, the rotation of the first transmission rod 4010 can be achieved. To prevent the limit block from rotating and ensure linear movement accuracy, a second rotating shaft 503 is connected to the inner side of the second shrink box 502 via a bearing. One end of the second rotating shaft 503 is fixedly connected to a second threaded rod 505. A second threaded cylinder 506 is threadedly connected to the surface of the second threaded rod 505. By setting the second rotating shaft 503, the power of the second worm gear 504 can be transmitted to the second threaded rod 505. Through the threaded connection between the second threaded rod 505 and the second threaded cylinder 506, linear movement of the second limit block 508 can be achieved. The second worm gear 504 is fixedly connected to the surface of the second rotating shaft 503. A second transmission rod 509 is tightly nested on the side of the second shrink box 502 via a bearing. A second worm gear 5011 is fixedly connected to the surface of the moving rod 509. The second worm wheel 504 meshes with the second worm gear 5011. A second knob 5010 is fixedly connected to one end of the second transmission rod 509. The meshing of the second worm wheel 504 with the second worm gear 5011 provides a symmetrical self-locking function to prevent bidirectional loosening. The second knob 5010 provides power for the rotation of the second transmission rod 509. A second limiting plate 507 is fixedly connected to the surface of the second threaded cylinder 506. The second limiting plate 507 is slidably connected inside the second shrink box 502. The second limiting plate 507 restricts the rotation of the second threaded cylinder 506 to ensure linear movement.

[0041] Please see Figure 1 , Figure 2 and Figure 3Two insertion holes 101 are provided on one side of the longitudinal beam 1, and two sockets 102 are fixedly connected to the other side of the longitudinal beam 1. By setting the insertion holes 101 and sockets 102, a modular connection interface can be provided, which can enable adjacent longitudinal beams 1 to be quickly spliced ​​by insertion. It supports the splicing of multiple longitudinal beams 1 to adapt to different span requirements. Both the insertion holes 101 and sockets 102 are provided with connection threaded holes 103. The bolts can be used to fix the beams by the provided connection threaded holes 103, which can simplify the installation process.

[0042] In this embodiment, by setting the first mounting bolt 201, the second mounting bolt 202, and the mounting threaded cylinder 6, it is convenient for people to install and connect the first mounting plate 4 and the second mounting plate 5. After installation, by rotating the first knob 4011 and the second knob 5010 respectively, the first threaded cylinder 405 and the second threaded cylinder 506 can be moved out of the first shrink box 402 and the second shrink box 502 respectively. The positions of the first limit block 406 and the second limit block 508 can be adjusted. By moving the first limit block 406 and the second limit block 508, the stiffening plate 105 of the longitudinal beam 1 can be clamped from both sides, forming a symmetrical rigid constraint to prevent the longitudinal beam 1 from shifting. By setting the placement groove 104, the second mounting plate 5 can be embedded inside the longitudinal beam 1, and the second shrink box 502 can be housed, reducing interference from the exposed structure. Through the transmission of the worm gear and worm, a high reduction ratio and self-locking function can be provided, and the limit blocks can be adjusted at the millimeter level, without loosening after long-term use.

[0043] The working principle of the above embodiment is as follows: In use, the first mounting plate 4 and the second mounting plate 5 can be installed and connected by the first mounting bolt 201, the second mounting bolt 202, and the mounting threaded cylinder 6. After installation, rotating the first knob 4011 can rotate the first transmission rod 4010 and the first worm gear 409. Through the meshing of the first worm gear 409 and the first worm 4012, the first rotating shaft 403 and the first threaded rod 404 can be driven to rotate. By the limiting rod 407, the first threaded cylinder 405 can be moved out of the first shrink box 402. Rotating the second knob 5010 can rotate the second transmission rod 509 and the first threaded rod 404. The second worm gear 504 rotates, and through the meshing of the second worm gear 504 and the second worm 5011, the second rotating shaft 503 and the second threaded rod 505 can be rotated. Through the limiting of the second limiting plate 507, the second threaded cylinder 506 can be moved out of the second shrink box 502. By moving the first threaded cylinder 405 and the second threaded cylinder 506 out of the first shrink box 402 and the second shrink box 502 respectively, the positions of the first limiting block 406 and the second limiting block 508 can be adjusted. Through the movement of the first limiting block 406 and the second limiting block 508, the stiffening plate 105 of the longitudinal beam 1 can be clamped from both sides, forming a symmetrical rigid constraint to prevent the longitudinal beam 1 from displacing.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temporary beam installation limiting structure, comprising a longitudinal beam (1), a base (2), a transverse beam (3), a first mounting plate (4), and a second mounting plate (5), characterized in that: There are two longitudinal beams (1), and a crossbeam (3) is provided between the two longitudinal beams (1). There are two bases (2), and the two longitudinal beams (1) are respectively provided on the top of the two bases (2). Multiple stiffening plates (105) are provided on both sides of the longitudinal beams (1). The base (2) is provided with two first mounting bolts (201) on its top. The first mounting plate (4) is provided with two first mounting holes (401) on its top. The top of the first mounting bolts (201) is provided in the first mounting holes (401) and is threadedly connected to a mounting threaded cylinder (6). The first mounting plate (4) is fixedly connected to the top of the first shrink box (402). The first shrink box (402) is slidably connected to the first threaded cylinder (405). One end of the first threaded cylinder (405) is fixedly connected to a first limiting block (406). The first limiting block (406) is provided with a groove (4013) inside. A rib plate (105) is provided in the groove (4013). Inside the longitudinal beam (1), a placement groove (104) is provided inside. The second mounting plate (5) is placed inside the placement groove (104). The base (2) is provided with two second mounting bolts (202) on the top. The second mounting plate (5) is provided with two second mounting holes (501) on the top. The top of the second mounting bolt (202) is placed inside the second mounting hole (501) and is threadedly connected to a mounting threaded cylinder (6). The top of the second mounting plate (5) is fixedly connected to a second shrink box (502). The second shrink box (502) is slidably connected to a second threaded cylinder (506) inside. One end of the second threaded cylinder (506) is fixedly connected to a second limiting block (508).

2. The temporary beam installation limiting structure according to claim 1, characterized in that: The first shrink box (402) has a first rotating shaft (403) tightly nested inside the side of the first rotating shaft (403) via bearings. One end of the first rotating shaft (403) is fixedly connected to a first threaded rod (404). The first threaded cylinder (405) is threadedly connected to the surface of the first threaded rod (404). The surface of the first rotating shaft (403) is fixedly connected to a first worm gear (409). The top of the first shrink box (402) has a first transmission rod (4010) tightly nested inside the first rotating shaft (402) via bearings. The surface of the first transmission rod (4010) is fixedly connected to a first worm (4012). The first worm gear (409) and the first worm (4012) mesh with each other.

3. The temporary beam installation limiting structure according to claim 2, characterized in that: The first transmission rod (4010) is fixedly connected to the top of the first knob (4011), and the first limiting block (406) is fixedly connected to the side of the multiple limiting rods (407). One end of the limiting rod (407) slides through the side of the first shrink box (402) and is fixedly connected to the first limiting plate (408).

4. The temporary beam installation limiting structure according to claim 1, characterized in that: The inner side of the second shrink box (502) is connected to the second rotating shaft (503) via a bearing. One end of the second rotating shaft (503) is fixedly connected to the second threaded rod (505), and the second threaded cylinder (506) is threadedly connected to the second threaded rod (505).

5. The temporary beam installation limiting structure according to claim 4, characterized in that: A second worm gear (504) is fixedly connected to the surface of the second rotating shaft (503). A second transmission rod (509) is tightly nested on the side of the second shrink box (502) through a bearing. A second worm (5011) is fixedly connected to the surface of the second transmission rod (509). The second worm gear (504) and the second worm (5011) mesh with each other. A second knob (5010) is fixedly connected to one end of the second transmission rod (509).

6. The temporary beam installation limiting structure according to claim 1, characterized in that: The second threaded cylinder (506) is fixedly connected to a second limiting plate (507), and the second limiting plate (507) is slidably connected inside the second shrink box (502).

7. The temporary beam installation limiting structure according to claim 1, characterized in that: Two insertion holes (101) are provided on one side of the longitudinal beam (1), and two sockets (102) are fixedly connected to the other side of the longitudinal beam (1).

8. The temporary beam installation limiting structure according to claim 7, characterized in that: Both the socket (101) and the receptacle (102) are provided with threaded holes (103).

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