Lateral anti-seismic bracket of bridge

Abstract

The utility model discloses a lateral anti-seismic bracket of a bridge, and relates to the technical field of anti-seismic brackets. Threaded holes are formed in the bottoms of the two side walls of the U-shaped plate, a through groove is formed in the inner wall of the bottom end of the U-shaped plate, and two sliding grooves are symmetrically formed in the bottom of the through groove relative to the vertical center line of the through groove. The height of the mounting plate is adjusted by arranging the telescopic plates and the limiting grooves and through matched use of the screws, the nuts and the fixing holes, and meanwhile the distance between the two lateral fixing plates is adjusted by arranging the sliding blocks capable of sliding along the interiors of the sliding grooves and the lateral fixing plates. Through the arrangement of the through grooves and the sealing plates, internal parts are sealed and protected and prevented from being damaged and corroded, the positions of the lateral fixing plates are limited and fixed through the sliding grooves, the sliding blocks and the reset springs, the lateral fixing plates can complete self-locking of the bridge conveniently, and therefore the bridge lateral anti-seismic support is convenient to use and high in practicability. The use limitation is reduced, the service life is prolonged, and installation is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of seismic brackets, and particularly relates to a lateral seismic bracket for a cable tray. Background Technique

[0002] The cable tray is divided into structures such as a trough cable tray, a tray cable tray, a ladder-type cable tray, and a grid cable tray, and is composed of brackets, cantilever arms, installation accessories, etc. It can be erected independently or laid on various buildings (structures) and pipe gallery brackets, reflecting the characteristics of simple structure, beautiful shape, flexible configuration, and convenient maintenance. For example, the trough cable tray is a trough component bent from a whole steel plate, and is usually used in combination with a seismic bracket for line laying. The seismic bracket has the functions of stabilizing the cable tray and increasing the seismic resistance of the cable tray:

[0003] The existing lateral seismic brackets for trough cable trays are customized according to the width of the cable tray and the distance from the top of the cable tray to the wall after the cable tray is installed, and cannot be adapted to the installation of cable trays with different widths and heights, resulting in their inability to meet the installation of trough cable trays with different widths and heights, having certain limitations.

[0004] Therefore, the existing lateral seismic brackets for cable trays cannot meet the requirements in actual use, so there is an urgent need for improved technologies in the market to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a lateral seismic bracket for a cable tray, which is provided with a telescopic plate and a limiting groove, and the height of the mounting plate is adjusted by the cooperation of a screw rod, a nut and a fixing hole. At the same time, the distance between two lateral fixing plates is adjusted by setting a slider that can slide inside a sliding groove and a lateral fixing plate, solving the problem that the existing lateral seismic brackets for trough cable trays are customized according to the width of the cable tray and the distance from the top of the cable tray to the wall after the cable tray is installed, and cannot be adapted to the installation of cable trays with different widths and heights, resulting in their inability to meet the installation of trough cable trays with different widths and heights, having certain limitations.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model relates to a lateral seismic support for a bridge truss, which comprises a U-shaped plate with threaded holes opened at the bottoms of both side walls, and two lateral fixing plates. A through groove is opened at the inner wall of the bottom end of the U-shaped plate, and two sliding grooves are symmetrically opened at the bottom of the through groove with respect to its vertical center line. Sealing plates are fixedly arranged at the bottom ends of the two lateral fixing plates, and sliding blocks are fixedly arranged at the bottom ends of the two sealing plates. The sliding blocks slide inside the sliding grooves. A lead screw is screwed inside the threaded hole, and a positioning plate is fixedly arranged at one end of the lead screw. The position of the lateral fixing plate is limited by the cooperation of the sliding block and the sliding groove to complete the width adjustment, and the position of the lateral fixing plate is fixed by the cooperation of the threaded hole and the lead screw to push the positioning plate to press the lateral fixing plate.

[0008] Limit grooves are opened at the top ends of both side walls of the U-shaped plate, and telescopic plates slide inside the limit grooves. An installation plate is fixedly arranged at the top end of the telescopic plate, and two screws are uniformly fixedly arranged at the bottom of the telescopic plate. Four fixing holes are uniformly opened on both sides of the limit groove. The two screws slide inside the four fixing holes uniformly, and four nuts are uniformly screwed on the outer cylindrical surfaces of the two screws. The height of the installation plate is adjusted by the cooperation of the limit groove and the telescopic plate, and the position of the telescopic plate is fixed by the cooperation of the screw, the fixing hole and the nut, so as to fix the position of the installation plate.

[0009] Furthermore, limit holes are opened at the top of both side walls of the U-shaped plate, and the sealing plate slides inside the through groove. The components inside the through groove and the sliding groove are hermetically protected by the cooperation of the sealing plate and the through groove to prevent damage and corrosion and increase the service life.

[0010] Furthermore, sliding rods are fixedly arranged at the top of the two lateral fixing plates on the opposite sides. The sliding rods slide inside the limit holes. The moving position of the lateral fixing plate is limited again by the cooperation of the sliding rod and the limit hole to ensure that the lateral fixing plate will not be stuck during movement.

[0011] Furthermore, reset springs are fixedly arranged on the opposite sides of the two sliding blocks, and one end of the reset spring is fixed to the inner wall of one end of the sliding groove. The elastic potential energy of the reset spring is used to push the lateral fixing plate to press the bridge truss to complete locking, and manual adjustment is not required.

[0012] Furthermore, a rubber sleeve is sleeved and fixed at one end of the lead screw, and the rubber sleeve is convenient for increasing the surface softness of the lead screw.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model adjusts the height of the mounting plate by setting a telescopic plate, a limiting groove and by using a screw rod, a nut and a fixing hole in cooperation. At the same time, the distance between two lateral fixing plates is adjusted by setting a slider that can slide inside the chute and a lateral fixing plate, so that the lateral seismic support of the bridge can be adapted to the installation of bridges with different widths and heights, reducing its usage limitations.

[0015] 2. The utility model seals and protects its internal components by setting a through groove and a sealing plate to prevent them from being damaged and corroded, increasing the service life of the lateral seismic support of the bridge. At the same time, the position of the lateral fixing plate is limited and fixed by the chute, the slider and the return spring, facilitating the lateral fixing plate to complete self-locking for the bridge, making the installation of the lateral seismic support of the bridge more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 is an exploded view of the U-shaped plate, the lead screw and the telescopic plate structures of the utility model;

[0018] Figure 3 is a schematic diagram of the structure of the lateral fixing plate of the utility model.

[0019] In the drawings, the list of components represented by each reference numeral is as follows:

[0020] 101, U-shaped plate; 102, through groove; 103, chute; 104, threaded hole; 105, limiting hole; 106, limiting groove; 107, fixing hole; 108, telescopic plate; 109, mounting plate; 110, screw rod; 120, nut; 130, lead screw; 140, positioning plate; 150, rubber sleeve; 201, lateral fixing plate; 202, sealing plate; 203, slider; 204, return spring; 205, slide bar. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model.

[0022] Please refer to Figures 1 - 3As shown in the figure, the utility model relates to a lateral seismic support for a bridge truss, which includes a U-shaped plate 101 with threaded holes 104 opened at the bottoms of both side walls, and two lateral fixing plates 201. A through groove 102 is opened at the inner wall of the bottom end of the U-shaped plate 101, and two sliding grooves 103 are symmetrically opened at the bottom of the through groove 102 with respect to its vertical center line. Sealing plates 202 are fixedly arranged at the bottom ends of the two lateral fixing plates 201, and sliding blocks 203 are fixedly arranged at the bottom ends of the two sealing plates 202. The sliding blocks 203 slide inside the sliding grooves 103. A lead screw 130 is screwed inside the threaded hole 104, and a positioning plate 140 is fixedly arranged at one end of the lead screw 130. The position of the lateral fixing plate 201 is limited by the cooperation of the sliding block 203 and the sliding groove 103 to complete the width adjustment, and the positioning plate 140 is pushed by the cooperation of the threaded hole 104 and the lead screw 130 to squeeze the lateral fixing plate 201, thereby fixing the position of the lateral fixing plate 201;

[0023] Limit grooves 106 are opened at the top ends of both side walls of the U-shaped plate 101, and telescopic plates 108 slide inside the limit grooves 106. An installation plate 109 is fixedly arranged at the top end of the telescopic plate 108, and two screw rods 110 are uniformly fixedly arranged at the bottom of the telescopic plate 108. Four fixing holes 107 are uniformly opened on both sides of the limit groove 106. The two screw rods 110 slide inside the four fixing holes 107 uniformly, and four nuts 120 are uniformly screwed on the outer cylindrical surfaces of the two screw rods 110. The height of the installation plate 109 is adjusted by the cooperation of the limit groove 106 and the telescopic plate 108, and the position of the telescopic plate 108 is fixed by the cooperation of the screw rod 110, the fixing hole 107 and the nut 120, thereby fixing the position of the installation plate 109.

[0024] Among them, as Figures 2 - 3 shown, limit holes 105 are opened at the top of both side walls of the U-shaped plate 101. The sealing plate 202 slides inside the through groove 102. The components inside the through groove 102 and the sliding groove 103 are sealed and protected by the cooperation of the sealing plate 202 and the through groove 102 to prevent damage and corrosion and increase the service life. Slide rods 205 are fixedly arranged at the top of the two lateral fixing plates 201 on the opposite sides. The slide rods 205 slide inside the limit holes 105. The moving position of the lateral fixing plate 201 is limited again by the cooperation of the slide rod 205 and the limit hole 105 to ensure that the lateral fixing plate 201 will not be stuck during movement. Return springs 204 are fixedly arranged on the opposite sides of the two sliding blocks 203, and one end of the return spring 204 is fixed to the inner wall of one end of the sliding groove 103. The elastic potential energy of the return spring 204 is used to push the lateral fixing plate 201 to squeeze the bridge truss to complete the locking, without manual adjustment. A rubber sleeve 150 is sleeved and fixed at one end of the lead screw 130, and the rubber sleeve 150 is convenient for increasing the surface softness of the lead screw 130.

[0025] Working principle:

[0026] When installing the bridge frame, the mounting plate 109 can be first installed on the wall by means of expansion bolts. Then, according to the height of the bridge frame, the telescopic plate 108 is adjusted to slide inside the limiting groove 106 to a suitable position, and then the nut 120 is tightened to complete the fixation. Then, the bridge frame is placed between the two lateral fixing plates 201. After the bridge frame exerts a squeezing force to push the lateral fixing plates 201 backward, the lateral fixing plates 201 squeeze the return spring 204. Under the elastic force of the return spring 204, the lateral fixing plates 201 are closely attached to the side wall of the bridge frame. Finally, the screw rod 130 is rotated forward along the threaded hole 104, and the positioning plate 140 is pushed to squeeze and fix the lateral fixing plates 201 to complete the fixation.

[0027] The above are only the preferred embodiments of the present invention and do not limit the present invention. Any modification of the technical solutions recorded in the foregoing embodiments, any equivalent replacement of some technical features, and any modification, equivalent replacement, and improvement made thereof all fall within the protection scope of the present invention.

Claims

1. Lateral seismic support for bridge truss, characterized in that: It includes a U-shaped plate (101) with threaded holes (104) opened at the bottoms of both side walls, and two lateral fixing plates (201). A through groove (102) is opened at the inner wall of the bottom end of the U-shaped plate (101), and two sliding grooves (103) are symmetrically opened at the bottom of the through groove (102) with respect to its vertical center line. Sealing plates (202) are fixedly provided at the bottom ends of the two lateral fixing plates (201), and sliders (203) are fixedly provided at the bottom ends of the two sealing plates (202). The sliders (203) slide inside the sliding grooves (103). A lead screw (130) is screwed inside the threaded hole (104), and a positioning plate (140) is fixedly provided at one end of the lead screw (130). Limit grooves (106) are opened at the top ends of both side walls of the U-shaped plate (101), and telescopic plates (108) slide inside the limit grooves (106). A mounting plate (109) is fixedly provided at the top end of the telescopic plate (108), and two screw rods (110) are uniformly fixedly provided at the bottom of the telescopic plate (108). Four fixing holes (107) are uniformly opened on both sides of the limit groove (106). The two screw rods (110) uniformly slide inside the four fixing holes (107), and four nuts (120) are uniformly screwed on the outer cylindrical surfaces of the two screw rods (110).

2. The lateral seismic support for bridge truss according to claim 1, characterized in that: Limit holes (105) are opened at the top of both side walls of the U-shaped plate (101), and the sealing plate (202) slides inside the through groove (102).

3. The lateral seismic support for bridge truss according to claim 1, wherein: Slide rods (205) are fixedly provided at the top of the two lateral fixing plates (201) on the opposite sides, and the slide rods (205) slide inside the limit holes (105).

4. The lateral seismic support for bridge truss according to claim 1, characterized in that: Return springs (204) are fixedly provided on the opposite sides of the two sliders (203), and one end of the return spring (204) is fixed to the inner wall of one end of the sliding groove (103).

5. The lateral seismic support for bridge truss according to claim 1, wherein: A rubber sleeve (150) is sleeved and fixed at one end of the lead screw (130).

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