Protective fence frame for railway bridge construction

Abstract

The utility model relates to the technical field of railway construction, and provides a protective fence frame for railway bridge construction, which comprises two bases and two cross rods, upright posts are nested in the two bases, two ends of the two cross rods are respectively positioned in the two upright posts, and the two cross rods are respectively positioned in the two upright posts. The protective fence comprises two stand columns, two symmetrically-arranged side plates are jointly welded between the two stand columns, two symmetrically-arranged sliding blocks are slidably assembled on the two sides of each side plate, a connecting rod is movably hinged to one side of each sliding block, and due to the arrangement of a buffer plate, a damping spring and other structures, the protective fence can be collided in the using process, and the service life of the protective fence is prolonged. When being impacted, the buffer plate moves towards the middle, the connecting rod pushes the sliding block to move, and the guide block also moves in the guide sleeve, so that the damping spring and the damper are used for buffering, the whole protective fence is better in protective effect and not prone to damage, and through the technical scheme, the problems that in the prior art, the protective fence is prone to damage and high in cost are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of railway construction, and in particular to a protective guardrail frame for railway bridge construction. Background Art

[0002] At present, in order to ensure construction safety, guardrails are usually required to be set up during railway bridge construction. Traditional guardrails have some problems, such as inconvenient installation, poor stability, and unsuitability for various terrains. Therefore, it is necessary to develop a new type of guardrail for railway bridge construction to improve construction safety and efficiency.

[0003] The authorization announcement number in the prior art is: CN217400548U, and the name is: a guardrail frame for railway bridge construction, including two base plates, columns fixed on the base plates and multiple vertically arranged placement openings, a guardrail assembly is provided between every two horizontally arranged placement openings, the assembly includes a sleeve and a plug rod movably inserted at both ends of the sleeve, and the plug rod is fixedly connected with a positioning pin at one end away from the sleeve. By respectively setting the plug rods of the guardrail assembly in the placement openings, and then fixing the plug rods through a clamping plate, the installation purpose of the guardrail assembly is achieved. This patent is easy to disassemble, carry and transport, and reduces the overall volume of the device. One end of the plug rod can move inside the sleeve, and the position of the plug rod is locked and fixed by bolts to adjust the protection range. However, this patent cannot protect the guardrail itself when in use. The guardrail is easily deformed by impact during use, and is easily damaged.

[0004] The authorization announcement number in the prior art is: CN215441467U, and the name is: a guardrail for highway bridge construction, including a fixed plate and a buffer unit, a plurality of fixing holes are opened on the edge of the fixed plate, and fixing bolts are arranged in the fixing holes. A sliding groove is also opened on the fixed plate, and the cross-section of the sliding groove is T-shaped. The buffer unit is placed in the sliding groove, and the buffer unit includes a sliding plate, a buffer spring and a connecting rod of the vertical plate. The sliding plate is slidably connected in the sliding groove, and the bottom side wall of the sliding plate is connected to the sliding groove through the buffer spring. A plug hole is opened on the upper plate surface of the sliding plate, and the plug hole is located above the buffer spring. One end of the vertical plate is inserted into the plug hole, and a plurality of card slots are evenly opened on the back of the vertical plate from top to bottom. One end of two connecting rods are symmetrically clamped in the card slot, and adjacent vertical plates are connected by connecting rods. However, the internal structure of this patent is relatively complicated. Although it can improve stability to a certain extent, when the internal structure is deformed and damaged, maintenance is more troublesome and costly. Utility Model Content

[0005] The utility model provides a protective guardrail frame for railway bridge construction, which solves the problems of easy damage and high cost in related technologies.

[0006] The technical solution of the utility model is as follows: a guardrail for railway bridge construction, comprising two bases and two cross bars, wherein columns are nested inside the two bases, and the two ends of the two cross bars are respectively located inside the two columns, and two symmetrically arranged side plates are welded between the two columns, and two symmetrically arranged sliders are slidably mounted on both sides of the side plates, and a connecting rod is movably hinged on one side of the slider, and a fixed block is movably hinged on one end of the connecting rod;

[0007] One side of each of the four fixed blocks is commonly connected to a buffer plate by screws, and two symmetrically arranged guide sleeves are nested on both sides of the side plate. A guide block is slidably assembled inside the guide sleeve, and the guide block is fixedly connected to one side of the buffer plate by screws.

[0008] Preferably, a limiting block is slidably mounted inside the two columns, one end of the limiting block is inclined, and one side of the limiting block is fixedly connected to a push rod by a screw.

[0009] Preferably, two symmetrically arranged limit grooves are provided inside the two columns, the limit block is slidably connected inside the limit groove, and a second spring is commonly connected between one side of the limit block and the limit groove to facilitate resetting of the limit block.

[0010] Preferably, grooves are provided inside the two bases, and the bottom ends of the two columns are respectively nested in the two grooves. Two symmetrically arranged square grooves are provided inside the two columns, and one end of the cross bar is located inside the square groove to facilitate fixing the columns and the cross bar.

[0011] Preferably, two symmetrically arranged sliding grooves are provided on both sides of the two side plates, the slider is slidably connected inside the sliding groove, and a first spring is commonly connected between the slider and the side wall of the sliding groove to facilitate resetting of the slider.

[0012] Preferably, two symmetrically arranged circular grooves are provided on both sides of the two side plates, and the guide sleeves are nested inside the circular grooves to facilitate fixing of the guide sleeves.

[0013] Preferably, a straight groove is provided inside the guide sleeve, the guide block is slidably connected inside the straight groove, a shock-absorbing spring is connected between the guide block and the straight groove, and a damper is provided inside the shock-absorbing spring to facilitate buffering of the buffer plate.

[0014] Preferably, two symmetrically arranged vertical grooves are provided inside the two columns, part of the push rod is slidably connected inside the vertical grooves, both ends of the cross bar are provided with slots, and one end of the limit block is located inside the slot to facilitate fixing the cross bar.

[0015] The working principle and beneficial effects of the utility model are:

[0016] 1. In the utility model, by setting structures such as a buffer plate and a shock-absorbing spring, the guardrail will be subject to some impact when in use. When the buffer plate is impacted, it will move toward the middle, the connecting rod will push the slider to move, and the guide block will also move inside the guide sleeve, so that the shock-absorbing spring and the damper can be buffered, so that the protection effect of the entire guardrail is better and it is not easy to be damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the side panel of the utility model;

[0020] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the internal structure of the column of the utility model;

[0022] Figure 5 Schematic diagram of the internal structure of the guide sleeve of the utility model

[0023] In the figure: 1. base; 2. column; 3. buffer plate; 4. cross bar; 5. side plate; 6. push rod; 7. round groove; 8. slider; 9. guide sleeve; 10. connecting rod; 11. first spring; 12. fixed block; 13. slide groove; 14. limit block; 15. slot; 16. square groove; 17. second spring; 18. guide block; 19. shock-absorbing spring; 20. damper. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] like Figure 1~Figure 5As shown, this embodiment proposes a guardrail for railway bridge construction, including two bases 1 and two cross bars 4, the two bases 1 are embedded with columns 2, the two ends of the two cross bars 4 are respectively located inside the two columns 2, two symmetrically arranged side plates 5 are welded between the two columns 2, and two symmetrically arranged sliders 8 are slidably mounted on both sides of the side plates 5, one side of the slider 8 is movably hinged with a connecting rod 10, one end of the connecting rod 10 is movably hinged with a fixed block 12, and one side of each of the four fixed blocks 12 is commonly fixedly connected with a buffer plate 3 by screws, and the side plates Two symmetrically arranged guide sleeves 9 are nested on both sides of 5, and a guide block 18 is slidably assembled inside the guide sleeve 9. The guide block 18 is fixedly connected to one side of the buffer plate 3 by screws. Through the arrangement of the buffer plate 3 and the shock-absorbing spring 19 and other structures, the guardrail will be hit when in use. When the buffer plate 3 is hit, it will move toward the middle, and the connecting rod 10 will push the slider 8 to move, and the guide block 18 will also move inside the guide sleeve 9, so that the shock-absorbing spring 19 and the damper 20 can be buffered, so that the protection effect of the entire guardrail is better and it is not easy to be damaged.

[0027] like Figure 1 As shown, the two bases 1 are provided with grooves inside, the bottom ends of the two columns 2 are respectively nested in the two grooves, and the two columns 2 are provided with two symmetrically arranged square grooves 16 inside, and one end of the cross bar 4 is located inside the square groove 16.

[0028] like Figure 2~Figure 3 As shown, two symmetrically arranged sliding grooves 13 are provided on both sides of the two side plates 5 , the slider 8 is slidably connected inside the sliding groove 13 , and a first spring 11 is commonly connected between the slider 8 and the side wall of the sliding groove 13 .

[0029] like Figure 2~Figure 3 As shown, two symmetrically arranged circular grooves 7 are provided on both sides of the two side plates 5 , and the guide sleeves 9 are nested inside the circular grooves 7 .

[0030] like Figure 5 As shown, a straight groove is provided inside the guide sleeve 9, a guide block 18 is slidably connected inside the straight groove, a shock absorbing spring 19 is connected between the guide block 18 and the straight groove, and a damper 20 is provided inside the shock absorbing spring 19.

[0031] In this embodiment, firstly, the two bases 1 are placed where the guardrail needs to be installed, and then the two columns 2 are respectively inserted into the inside of the two bases 1, and then the cross bar 4 is fixed between the two columns 2. When the guardrail is hit, the buffer plate 3 will be hit first. At this time, the buffer plate 3 will move to the side close to the side plate 5. Since the fixing block 12 is fixed on one side of the buffer plate 3, one end of the connecting rod 10 will rotate, and the other end of the connecting rod 10 will drive the slider 8 to move inside the slide groove 13, so that the slider 8 will not cause a large impact on the same place of the side plate, increase the force-bearing area of ​​the entire side plate 8, and make the side plate 8 not easily deformed. Then the guide block 18 slides inside the guide sleeve 9, and the shock-absorbing spring 19 and the damper 20 buffer it, reducing the impact force on the buffer plate 3 and the guardrail as a whole. After the impact, the first spring 11 can also reset the slider 8 and the buffer plate 3, so that the protection effect of the entire guardrail is better, it is not easy to be damaged, and the cost is reduced.

[0032] Example 2

[0033] like Figure 2~Figure 4 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that the two columns 2 are internally slidably equipped with limit blocks 14, one end of the limit block 14 is inclined, and one side of the limit block 14 is fixedly connected to the push rod 6 by screws.

[0034] like Figure 4 As shown, two symmetrically arranged limiting grooves are provided inside the two uprights 2, and the limiting blocks 14 are slidably connected inside the limiting grooves. A second spring 17 is commonly connected between one side of the limiting block 14 and the limiting grooves.

[0035] like Figure 4 As shown, two vertical grooves arranged symmetrically are provided inside the two columns 2, and part of the push rod 6 is slidably connected inside the vertical grooves. Slots 15 are provided at both ends of the cross bar 4, and one end of the limit block 14 is located inside the slot 15.

[0036] In this embodiment, since the guardrail is relatively large as a whole, it is inconvenient to transport and disassemble it. Therefore, the cross bar 4 and the column 2 are arranged to be detachable. When moving, the cross bar 4, the column 2 and the base 1 can be separately disassembled for transportation, which is more convenient to use. A limit block 14 is arranged inside the column 2, a push rod 6 is arranged on one side of the limit block 14, and a second spring 17 is arranged on one side of the limit rod, so that when the cross bar 4 is inserted into the column 2, the limit rod fixes it, the overall structure is not easy to loosen, and the stability is better.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A guardrail for railway bridge construction, characterized in that: The invention comprises two bases (1) and two cross bars (4), wherein the two bases (1) are each nested with a column (2), the two ends of the two cross bars (4) are respectively located inside the two columns (2), two symmetrically arranged side plates (5) are welded between the two columns (2), two symmetrically arranged sliders (8) are slidably mounted on both sides of the side plates (5), one side of the slider (8) is movably hinged with a connecting rod (10), and one end of the connecting rod (10) is movably hinged with a fixing block (12); One side of each of the four fixing blocks (12) is fixedly connected to a buffer plate (3) by means of screws, two symmetrically arranged guide sleeves (9) are nested on both sides of the side plate (5), a guide block (18) is slidably mounted inside the guide sleeve (9), and the guide block (18) is fixedly connected to one side of the buffer plate (3) by means of screws.

2. A guardrail for railway bridge construction according to claim 1, characterized in that: A limit block (14) is slidably mounted inside the two uprights (2), one end of the limit block (14) is inclined, and one side of the limit block (14) is fixedly connected to a push rod (6) via screws.

3. A guardrail for railway bridge construction according to claim 2, characterized in that: Two symmetrically arranged limit slots are provided inside the two uprights (2), the limit blocks (14) are slidably connected inside the limit slots, and a second spring (17) is commonly connected between one side of the limit block (14) and the limit slots.

4. A guardrail for railway bridge construction according to claim 1, characterized in that: The two bases (1) are each provided with a groove, the bottom ends of the two upright posts (2) are respectively nested in the two grooves, the two upright posts (2) are each provided with two symmetrically arranged square grooves (16), and one end of the cross bar (4) is located in the square groove (16).

5. The protective guardrail for railway bridge construction according to claim 1, characterized in that: Two symmetrically arranged sliding grooves (13) are provided on both sides of the two side plates (5); the sliding block (8) is slidably connected inside the sliding groove (13); and a first spring (11) is commonly connected between the sliding block (8) and the side wall of the sliding groove (13).

6. The protective guardrail for railway bridge construction according to claim 1, characterized in that: Two symmetrically arranged circular grooves (7) are provided on both sides of the two side plates (5), and the guide sleeves (9) are nested inside the circular grooves (7).

7. The protective guardrail for railway bridge construction according to claim 1, characterized in that: A straight groove is provided inside the guide sleeve (9), the guide block (18) is slidably connected inside the straight groove, a shock absorbing spring (19) is connected between the guide block (18) and the straight groove, and a damper (20) is provided inside the shock absorbing spring (19).

8. The protective guardrail for railway bridge construction according to claim 2, characterized in that: Two symmetrically arranged vertical slots are provided inside the two uprights (2), a portion of the push rod (6) is slidably connected inside the vertical slots, both ends of the cross bar (4) are provided with slots (15), and one end of the limit block (14) is located inside the slot (15).

Images