Flange type quick bolt set connecting support

Abstract

This utility model discloses a flange-type quick-bolt connection support, aiming to solve the problems of existing supports being difficult to adjust precisely, prone to vibration and loosening, and susceptible to corrosion. The support includes an upper support, a lower support, and an elastic washer ring between them. Its core feature is a lifting mechanism within the lower support, driven by a worm gear and a worm wheel that rotates a T-shaped lead screw, thereby lifting the upper support. This mechanism has a self-locking characteristic, enabling effortless and precise fine-tuning and maintaining high stability over a long period. The upper and lower supports are rigidly connected by a flange-type connection using studs and anti-loosening nuts pre-installed in the lower support, providing strong load-bearing capacity. The elastic washer ring acts as a buffer and vibration damper. This utility model integrates precise height adjustment, vibration resistance, anti-loosening, and long-term protection, significantly improving the installation accuracy, safety, and durability of track supports.

Description

Technical Field

[0001] This utility model relates to the field of connecting support technology, specifically a flange-type quick bolt assembly connecting support. Background Technology

[0002] In rail transit systems such as railways, urban rail transit, and maglev, track supports are key structural components that connect track beams to bridge piers or foundations. Their core function is to reliably transmit train loads and allow the track system to undergo certain displacement and rotation under the influence of factors such as temperature changes and concrete shrinkage and creep. Therefore, the performance of track supports is directly related to driving safety, ride comfort, and the long-term durability of the entire line. During the construction and installation of track engineering, there are extremely high precision requirements for the elevation and smoothness of the top surface of the track. However, due to factors such as foundation settlement, construction errors and dimensional deviations of prefabricated components, the height of the supports often needs to be finely adjusted during actual installation to ensure that the track alignment meets the design standards. Currently, traditional methods for adjusting the height of track supports typically involve placing a thin steel plate between the support base plate and the foundation, or using a simple jack to lift the support and then filling it with epoxy mortar. These methods have many drawbacks: First, the method of adding shims has low adjustment accuracy, is cumbersome, and makes it difficult to achieve continuous and precise fine-tuning. Secondly, the construction method using jacks and epoxy mortar is complicated, requires waiting for the materials to cure, has a long construction period, and the adjusted height is irreversible, making it difficult to correct errors once they occur. Utility Model Content

[0003] In view of the above-mentioned shortcomings in the existing technology, the purpose of this utility model is to provide a connecting support with adjustable support height to meet the requirements of high-precision installation and positioning.

[0004] The technical solution adopted by this utility model to achieve the above-mentioned objective is as follows: a flange-type quick bolt assembly connection support, including an upper support, a lower support, an elastic washer, and a lifting mechanism. A lower flange platform is fixedly connected to the top surface of the lower support, and the lifting mechanism is provided inside the lower flange platform. An upper flange platform is fixedly connected to the bottom surface of the upper support. The lifting mechanism cooperates with the upper flange platform. The elastic washer is provided between the upper flange platform and the lower flange platform. The upper flange platform and the lower flange platform are connected by a bolt assembly.

[0005] In the above technical solution, the lifting mechanism adopts the following: The lower flange platform is provided with a lower groove cavity, and the upper flange platform is provided with an upper chamber. The lifting mechanism includes a guide column, a T-shaped lead screw, a worm gear, and a worm wheel. The guide column is fixedly connected in the lower groove cavity. The upper flange platform is provided with a sliding hole corresponding to the guide column, and the guide column is slidably connected to the sliding hole. The lower groove cavity is rotatably connected to the T-shaped lead screw, and the upper flange is fixedly connected to the lead screw sleeve corresponding to the T-shaped lead screw. The T-shaped lead screw and the lead screw sleeve are threadedly connected. The bottom end of the T-shaped lead screw is fixedly connected to the worm wheel, and the worm is rotatably connected in the lower groove cavity. The worm meshes with the worm wheel, and one end of the worm passes through the lower flange and is provided with an operating groove. Furthermore, the operating groove is a hexagonal groove.

[0006] In the above technical solution, the bolt assembly adopts the following structure: The bolt assembly includes studs and lock nuts, and multiple sets of the studs are fixedly connected to the lower flange platform; The upper flange platform has flange holes corresponding to each set of studs. The studs pass through the flange holes and are threaded with anti-loosening nuts.

[0007] In the above technical solution, in order to realize the use of the elastic washer, the elastic washer is provided with a through hole for each set of studs, and the studs pass through the through hole.

[0008] The beneficial effects of this utility model are: 1. The lifting mechanism allows for minute adjustments to the height of the upper support, meeting the requirements for high-precision installation and positioning. The lifting mechanism employs a T-shaped screw with a worm gear and worm shaft. Both the T-shaped screw and the worm gear and worm shaft have a reverse self-locking function, ensuring that the upper support will not sink or rotate due to the load above after adjustment, thus guaranteeing long-term height stability. Simultaneously, the worm gear and worm shaft transmission has a large reduction ratio; heavy equipment and the upper support can be easily lifted by turning the worm shaft with a small wrench (through the operating groove), making operation labor-saving. Furthermore, the entire lifting mechanism is built into the lower flange platform, resulting in a compact structure that does not occupy additional space. 2. The upper and lower flange platforms are connected by studs and lock nuts. This structure allows multiple bolt assemblies to be evenly distributed, enabling them to withstand enormous pressure, tension, and overturning moment. The load is transmitted through the path of the upper support, upper flange platform, elastic washer, lower flange platform, and lower support, ensuring smooth force flow and reasonable structural stress distribution. Furthermore, the studs are pre-fixed to the lower flange platform, and during installation, only the lock nuts on top need to be tightened, simplifying on-site operations. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic cross-sectional view of the present invention. Figure 3 This is an exploded structural diagram of the present invention; Figure 4 This is a structural diagram of the present invention from another angle.

[0010] In the diagram: 100 Upper support, 101 Upper flange platform, 102 Upper chamber, 103 Flange hole, 200 Lower support, 201 Lower flange platform, 202 Lower groove, 300 Elastic washer ring, 301 Through hole, 401 Guide post, 402 T-shaped screw, 403 Worm, 404 Worm wheel, 405 Screw sleeve, 406 Operating groove, 501 Stud, 502 Anti-loosening nut. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0012] Please see Figures 1-4 This utility model provides a flange-type quick bolt assembly connection support, which can achieve precise fine adjustment of the support height of the track beam and has excellent vibration resistance, anti-loosening and corrosion resistance.

[0013] In a typical embodiment of this utility model, the connecting support mainly consists of an upper support 100, a lower support 200, an elastic washer ring 300, a lifting mechanism, and a bolt assembly; Among them, the lower support 200 is a rectangular block structure integrally cast and anchored to the bridge pier or foundation by anchor bolts. The center of the top surface of the lower support 200 protrudes upward to form a lower flange platform 201, and the lower flange platform 201 has a lower groove cavity 202 machined inside. Furthermore, the upper support 100 is also a rectangular block structure integrally cast. Its top is used to support the track beam. The bottom center of the upper support 100 protrudes downward to form an upper flange platform 101. An upper chamber 102 is provided inside the upper flange platform 101. In addition, the lifting mechanism is located in the lower groove 202 of the lower flange platform 201, and is mainly used to drive the upper support 100 to perform precise vertical lifting. The lifting mechanism includes a guide column 401, a T-shaped lead screw 402, a worm gear 403 and a worm wheel 404. Specifically, there are two guide columns 401, with their lower ends vertically fixed to the bottom surface of the lower groove cavity 202. The bottom of the upper flange platform 101 is provided with two smooth sliding holes corresponding to the positions of the two guide columns 401. The upper ends of the guide columns 401 pass through the sliding holes and form a sliding fit with the sliding holes, thereby providing precise vertical guidance for the lifting and lowering of the upper support 100 and preventing it from deflecting horizontally. The bottom end of the T-shaped lead screw 402 is rotatably connected to the bottom surface of the lower groove cavity 202 through a bearing. Its axis is located between two guide columns 401. A lead screw sleeve 405 is fixedly embedded in the bottom center of the upper flange platform 101. The lead screw sleeve 405 has a thread that matches the T-shaped lead screw 402. The T-shaped lead screw 402 is screwed into the lead screw sleeve 405 to form a threaded transmission pair. At the bottom end of the T-shaped lead screw 402, a worm gear 404 is fixedly installed via a key connection. The worm 403 is horizontally supported between the side walls of the lower cavity 202 by two rolling bearings, and its axis is spatially perpendicular to the axis of the worm gear 404. The teeth of the worm 403 mesh with the teeth of the worm gear 404 to form a worm gear 404-worm gear 403 transmission pair. One end of the worm 403 extends and passes through the side wall of the lower flange 201. Its exposed end is machined with a standard hexagonal operating groove 406 for inserting a hexagonal wrench for operation. Furthermore, the elastic gasket 300 is made of neoprene rubber and is circular in shape. The elastic gasket 300 is placed on the top surface of the lower flange platform 201 and is located between the upper flange platform 101 and the lower flange platform 201. The bolt assembly is used to finally lock the upper and lower supports 200. It includes multiple high-strength studs 501 and matching anti-loosening nuts 502. Specifically, the lower ends of the multiple studs 501 are fixed to the top surface of the lower flange 201 and are evenly distributed along the circumference. A through hole, called a flange hole 103, is opened on the upper flange 101 corresponding to the position of each stud 501. A through hole 301 for the studs 501 to pass through is also opened on the elastic washer 300. During installation, the studs 501 pre-fixed on the lower flange platform 201 pass through the through hole 301 of the elastic washer 300 and the flange hole 103 of the upper flange platform 101 in sequence, and a lock nut 502 is screwed onto the upper end of each stud 501.

[0014] The working process of this utility model embodiment is as follows: When adjusting the support height, first use a wrench to slightly loosen all the lock nuts 502, allowing the elastic washer ring 300 to regain its elastic deformation capacity, creating a small gap between the upper flange 101 and the stud 501. Then, insert a hexagonal wrench into the hexagonal operating groove 406 at the end of the worm gear 403 and rotate it. The rotation of the worm gear 403 drives the worm wheel 404 to rotate, thereby driving the T-shaped screw 402 to rotate. The rotational motion of the T-shaped screw 402 is then converted into the upper support 100 and the upper flange 101 moving along the guide... The vertical lifting motion of column 401 can achieve fine-tuning of height due to the large transmission ratio of worm gear 404 and worm 403. After adjusting to the predetermined height, all anti-loosening nuts 502 are tightened to the specified torque value with a torque wrench. At this time, the elastic washer ring 300 is compressed, and the upper and lower flanges 201 are rigidly connected by bolt assembly. The lifting mechanism is kept in a fixed position due to the self-locking characteristics of T-shaped screw 402 and worm gear 404 and worm 403. The protective cover provides continuous protection for the threaded connection parts during daily use.

[0015] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0016] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flange-type quick bolt assembly support, comprising an upper support (100), a lower support (200), an elastic washer (300), and a lifting mechanism, characterized in that: The lower support (200) is fixedly connected to the top surface of the lower flange platform (201), and the lower flange platform (201) is provided with the lifting mechanism. The upper support (100) is fixedly connected to the bottom surface of the upper flange platform (101). The lifting mechanism cooperates with the upper flange platform (101). The elastic gasket (300) is provided between the upper flange platform (101) and the lower flange platform (201). The upper flange platform (101) and the lower flange platform (201) are connected by bolt assembly.

2. The flange-type quick bolt assembly support according to claim 1, characterized in that: The lower flange platform (201) is provided with a lower groove cavity (202), and the upper flange platform (101) is provided with an upper chamber (102). The lifting mechanism includes a guide column (401), a T-shaped lead screw (402), a worm (403), and a worm wheel (404). The guide column (401) is fixedly connected in the lower groove cavity (202). The upper flange platform (101) is provided with a sliding hole corresponding to the guide column (401). The guide column (401) is slidably connected to the sliding hole. The T-shaped lead screw (402) is rotatably connected in the lower groove cavity (202), and a lead screw sleeve (405) is fixedly connected to the upper flange platform (101) corresponding to the T-shaped lead screw (402). The T-shaped lead screw (402) and the lead screw sleeve (405) are threadedly connected. The bottom end of the T-shaped lead screw (402) is fixedly connected to the worm wheel (404), and the worm (403) is rotatably connected in the lower groove cavity (202). The worm (403) meshes with the worm wheel (404), and one end of the worm (403) extends out of the lower flange platform (201) and is provided with an operating groove (406).

3. The flange-type quick bolt assembly support according to claim 1, characterized in that: The bolt assembly includes studs (501) and lock nuts (502), and multiple sets of studs (501) are fixedly connected to the lower flange (201). The upper flange platform (101) is provided with flange holes (103) for each set of studs (501), the studs (501) pass through the flange holes (103), and the anti-loosening nuts (502) are threaded on the studs (501).

4. A flange-type quick bolt assembly connection support according to claim 3, characterized in that: The elastic washer ring (300) is provided with a through hole (301) for each set of studs (501), and the studs (501) pass through the through hole (301).

5. A flange-type quick bolt assembly connection support according to claim 2, characterized in that: The operating groove (406) is a hexagonal groove.

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