CN219410502U - A Block Limiting Device Applicable to Various Earthquake Situations - Google Patents

Abstract

The utility model relates to the technical field of bridge engineering and discloses a stop block limiting device applicable to various earthquake conditions, which comprises a cover beam, wherein the upper surface of the cover beam is provided with a box beam, the upper surface of the cover beam is symmetrically provided with transverse grooves, the front and rear surfaces of the interiors of the transverse grooves are respectively provided with a sliding groove, the interiors of the two sliding grooves are connected with mounting seats in a sliding manner, the upper surface of each mounting seat is provided with a mounting groove, a baffle is inserted into each mounting groove, the tops of the two baffle are positioned above the cover beam, and a supporting plate is fixed.

Description

A Block Limiting Device Applicable to Various Earthquake Situations

technical field

The utility model relates to the technical field of bridge engineering, in particular to a stopper limiting device applicable to various earthquake situations.

Background technique

The anti-seismic block of the bridge is set on the pier and abutment and placed on both sides of the beam end. The purpose is to prevent the main girder from falling in the direction of the bridge. Most of the continuous beam bridges with small and medium spans in my country use plate rubber bearings. For this type of bridge, the support will have a large displacement under the action of an earthquake.

After the existing anti-seismic block is used for a long time, due to the friction at the bottom of the bridge, a certain loss will occur, thereby reducing the shock absorption effect of the bridge anti-seismic block. However, the traditional anti-seismic block is mostly welded or poured because of the connection method installed, which makes it difficult to replace the energy-consuming section. Long-term use will extend and affect the anti-seismic effect and stability of the bridge. Now there is a lack of a block limit device suitable for various earthquake situations.

Utility model content

(1) Solved technical problems

Aiming at the deficiencies of the prior art, the utility model provides a stopper limiting device applicable to various earthquake situations, which solves the problems raised in the above-mentioned background.

(2) Technical solutions

In order to achieve the above object, the utility model provides the following technical solutions: a block-limiting device applicable to various earthquake situations, comprising a cover beam, the upper surface of the cover beam is provided with a box girder, and the upper surface of the cover beam is symmetrically provided with transverse grooves, the front and rear surfaces of the inside of the transverse groove are provided with chutes, the inside of the two chutes are jointly slidably connected to a mounting seat, the upper surface of the mounting seat is provided with a mounting groove, and a baffle is inserted inside the mounting groove, and a supporting plate is fixed on the top of the two baffles above the cover beam.

Preferably, two cavities are provided inside the mounting base below the mounting groove, and slots 1 are provided on the front and rear surfaces of the baffle plate. Lifting parts are slidably connected inside the cavity. The inner side of the cavity is slidably connected with elastic rods on the side away from the lifter, the top ends of the two elastic rods penetrate into the inside of the installation groove, the side of the elastic rods close to the gear cylinder is provided with a slot two, and the end of the tooth plate close to the elastic rods is inserted into the second slots.

Preferably, several gear teeth are fixed on the lower surface of the tooth plate and the side of the lifting member close to the elastic rod, and the tooth plate and the lifting member are meshed with the gear cylinder through the teeth.

Preferably, a plastic plate is fixed on the inner lower surface of the transverse groove.

Preferably, the top ends of the two elastic rods are in contact with the lower surface of the baffle.

Preferably, the lifting member is a U-shaped structure.

Preferably, spring two is fixed at the bottom of the spring bar, and the bottom of spring two is fixedly connected to the inner lower surface of the cavity, spring one is fixed at the end of the tooth plate far away from the spring bar, and the end of spring one far away from the tooth plate is fixedly connected with the inner surface of the cavity.

(3) Beneficial effects

The utility model provides a stopper limiting device applicable to various earthquake situations, which has the following beneficial effects:

In the process of practical use, the external bridge block is welded to the upper surface of the supporting plate, and the block is used in conjunction with the box girder. When the box girder shakes due to earthquakes and other reasons, the block and the mounting seat are pushed to move outward. When the shaking strength is greater than the strength of the plastic plate, the plastic plate breaks, and the mounting seat moves outward until it stops under the limit of the inner wall of the horizontal groove. The effect of two-stage limit fixation is achieved, which is suitable for earthquakes of different strengths; Squeeze the slide bar to make the insert slide inward, disengage from slot 1, and at the same time drive the tooth plate to move laterally through the gear cylinder, and leave slot 2. Spring 2 will push the spring bar to move up. In slot one, the baffle plate is fixed, and after installation, the new block and the supporting plate are welded to complete.

Description of drawings

Fig. 1 is the structural representation of the utility model

Fig. 2 is a side sectional structural schematic diagram of the mounting seat in the present invention.

In the figure: 1, cover beam; 2, transverse groove; 3, chute; 4, mounting seat; 5, baffle; 6, supporting plate; 7, plastic plate; 8, card slot one; .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Fig. 1-2, the utility model provides a technical solution: a block limiter applicable to various earthquake situations, including a cover beam 1, characterized in that: a box girder 21 is provided on the upper surface of the cover beam 1, and a transverse groove 2 is opened symmetrically on the upper surface of the cover beam 1, and a chute 3 is opened on the front and rear surfaces of the transverse groove 2, and a mounting seat 4 is slidingly connected inside the two chute 3, and a mounting groove 20 is provided on the upper surface of the mounting seat 4. There is a supporting plate 6, and the external bridge block is welded to the upper surface of the supporting plate 6, and the blocking block is bonded to the box girder 21.

Further, two cavities 9 are provided inside the mounting base 4 below the mounting groove 20, and a slot-8 is provided on the front and rear surfaces of the baffle plate 5. The inside of the cavity 9 is slidably connected with a lifter 10. The inside of the cavity 9 is rotatably connected with a gear cylinder 14, and a gear plate 15 is arranged above the gear cylinder 14. The inside of the cavity 9 is slidingly connected with a spring bar 17 on the side away from the lifting member 10. The tops of the two spring rods 17 both penetrate into the installation groove 20. The side of the spring bar 17 close to the gear cylinder 14 is provided with a slot 2 19. The end of the tooth plate 15 close to the spring bar 17 is plugged into the slot 2 19. The end of the tooth plate 15 near the spring bar 17 is inserted into the slot 2 19. The baffle 5 can be inserted The mounting groove 20 is automatically locked, and only two lifters 10 need to be pressed for disassembly.

Further, a number of gear teeth are fixed on the lower surface of the tooth plate 15 and the side of the lifting member 10 close to the elastic rod 17, and the tooth plate 15 and the lifting member 10 are meshed with the gear cylinder 14 through the gear teeth, so that the tooth plate 15, the lifting member 10, and the gear cylinder 14 form a linkage relationship.

Furthermore, a plastic plate 7 is fixed on the inner lower surface of the transverse groove 2. The plastic plate 7 is made of plastic material and has a certain strength, but it will break after being squeezed and impacted beyond a certain strength.

Further, the top ends of the two elastic rods 17 are in contact with the lower surface of the baffle 5 , and the baffle 5 presses the two elastic rods 17 .

Further, the lifting member 10 has a U-shaped structure, so that the spring one 16 can be located inside the lifting member 10, and the tooth plate 15 will not be hindered when moving.

Further, spring two 18 is fixed on the bottom of spring bar 17, and the bottom of spring two 18 is fixedly connected with the inner lower surface of cavity 9, and one end of tooth plate 15 away from spring bar 17 is fixed with spring one 16, and one end of spring one 16 away from tooth plate 15 is fixedly connected with the inner surface of cavity 9, through spring two 18.

In summary, the working process of the present utility model is as follows: the external bridge block is welded to the upper surface of the supporting plate 6, and the block is used in conjunction with the box girder 21. When the box girder 21 shakes due to earthquakes and other reasons, the block and the mounting seat 4 are pushed to move outward. When the shaking strength is greater than the strength of the plastic plate 7, the plastic plate 7 breaks, and the mounting seat 4 moves outward until it stops under the limit of the inner wall of the transverse groove 2, reaching the effect of two-stage limit. When the block, baffle plate 5, and support plate 6 need to be removed , press the two lifters 10 to lower the lifter 10, squeeze the slide bar 12 through the inner wall of the chute 11 to make the insert 13 slide inwardly, break away from the first slot 8, and drive the toothed plate 15 to move laterally through the gear cylinder 14, break away from the second slot 19, and the spring two 18 will push the spring bar 17 upward, and the two rising spring bars 17 will push the baffle plate 5 to rise. Squeeze the elastic bar 17 at the bottom to make it fall. When the slot two 19 is aligned with the tooth plate 15, the spring one 16 pushes the tooth plate 15 to snap into the slot two 19, and the lifting member 10 rises through the tooth cylinder 14. At this time, the insert block 13 is inserted into the slot one 8 again, and the baffle plate 5 is fixed. After installation, the new block and the supporting plate 6 are welded to complete.

It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements but also other elements not expressly listed or which are inherent to such process, method, article or apparatus.

Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. A block-limiting device applicable to multiple earthquake situations, comprising a cover beam (1), characterized in that: the upper surface of the cover beam (1) is provided with a box girder (21), the upper surface of the cover beam (1) is symmetrically provided with transverse grooves (2), the inner front and rear surfaces of the transverse groove (2) are provided with chutes (3), and the inside of the two chute (3) is jointly slidably connected with a mounting seat (4), and the upper surface of the mounting seat (4) is provided with a mounting groove (20), and the inside of the mounting groove (20) A baffle (5) is plugged in, and the tops of the two baffles (5) are above the cover beam (1) and are fixed with supporting plates (6). 2. A block-limiting device applicable to various earthquake situations according to claim 1, characterized in that two cavities (9) are provided inside the installation seat (4) below the installation groove (20), the front and rear surfaces of the baffle plate (5) are provided with a slot one (8), the inside of the cavity (9) is slidably connected with a lifter (10), the tops of the two lifters (10) penetrate above the installation seat (4), and the left and right sides of the lifter (10) are provided with inclined slots (11), the inside of the two chute (11) is slidably connected with a slide bar (12), the outer surface of the slide bar (12) is fixed with an insert (13), the end of the insert (13) close to the baffle plate (5) penetrates into the inside of the slot one (8), the inside of the cavity (9) is rotatably connected with a gear cylinder (14), and a tooth plate (15) is arranged above the gear cylinder (14), and the inside of the cavity (9) is slidably connected to the side away from the lifter (10) There are elastic rods (17), the tops of the two elastic rods (17) penetrate into the installation groove (20), the elastic rod (17) is provided with a slot two (19) on the side close to the tooth cylinder (14), and the end of the tooth plate (15) close to the elastic rod (17) is inserted into the second slot (19). 3. A block-limiting device applicable to various earthquake situations according to claim 2, characterized in that: the lower surface of the tooth plate (15) and the side of the elevating member (10) close to the elastic rod (17) are fixed with a number of gear teeth, and the tooth plate (15) and the elevating member (10) are meshed and connected to the gear cylinder (14) through the gear teeth. 4. A stopper limiting device applicable to various earthquake situations according to claim 1, characterized in that: a plastic plate (7) is fixed on the inner lower surface of the transverse groove (2). 5. A stopper limiting device applicable to various earthquake situations according to claim 3, characterized in that: the top ends of the two elastic rods (17) are in contact with the lower surface of the baffle (5). 6. A stopper limiting device applicable to various earthquake situations according to claim 2, characterized in that: the lifting member (10) is a U-shaped structure. 7. One of the gear restrictions that can be suitable for multiple earthquake conditions according to claim 2, which is characterized by: a spring two (18) at the bottom of the bomb (17) at the bottom, the bottom of the spring two (18) is connected to the inner surface of the empty cavity (9), which is far from the one (15) from the one (15). The end is fixed with a spring one (16), which is fixed with the inner surface of the empty cavity (9) in the inner surface of the empty cavity (9).