Railway bridge deck construction spraying protection device

Abstract

The utility model discloses a railway bridge deck construction spraying protection device, which comprises baffles, mounting seats, shaft tubes and supporting wheels, the mounting seats are fixed on the outer side walls of side plates of the baffles by bolts, one mounting seat is fixed on each side wall of four groups of baffles, two shaft tubes respectively and sequentially penetrate through shaft tube holes of the four mounting seats on the same side, and the supporting wheels are fixed on the shaft tubes. The four groups of baffles are connected into a whole; the two ends of each shaft pipe are each provided with a supporting wheel, the supporting wheels can stably move on channels in the inner sides of the A wall and the protective wall, and the wall surface is prevented from being damaged. Kidney-shaped holes are formed in the side plates on the two sides of the baffle, so that the position of the mounting base is convenient to adjust to adapt to different working conditions. Hemispherical protruding blocks arranged in a matrix mode are arranged on the back face of the baffle so that friction force and stability can be enhanced. The device fully adapts to the complex construction environment of the three-wall structure of the railway bridge floor, and the situation that the surface of a protective wall is polluted due to paint splashing caused by improper manual operation or the influence of strong wind weather during waterproof paint spraying operation is effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of railway bridge deck construction spraying tooling technology, and in particular to a railway bridge deck construction spraying protection device mainly used for the application of waterproof layer coating on the inner side of railway bridge protective walls. Background Technology

[0002] In railway bridge deck engineering, the protective walls (A-wall, B-wall, and crash barrier, collectively referred to as the three walls) are key structures, undertaking important functions such as preventing accidental impacts, resisting wind loads, protecting the main bridge structure, housing train control signal cables, providing maintenance access, and assisting in drainage. Generally, a waterproof layer needs to be sprayed between the A-wall, B-wall, and crash barrier to ensure waterproofing between the three walls. However, traditional manual spraying methods are difficult to control the spraying area, easily causing the waterproof coating to splash onto the outer surface, contaminating the surface of the three walls. Therefore, developing a protective device specifically designed for applying a waterproof layer to the inner side of the protective walls on railway bridge decks has become an urgent problem to be solved. Summary of the Invention

[0003] The purpose of this utility model is to provide a protective spraying device for railway bridge deck construction.

[0004] The purpose of this utility model is achieved as follows:

[0005] A protective spraying device for railway bridge deck construction comprises baffles, mounting seats, axle tubes, and support wheels. Four identical sets of baffles, each with a C-shaped structure, are placed vertically at intervals. Each set of baffles has a side plate on each side. A slotted hole, penetrating the center of each side plate, is used to fix the mounting seat. A through-hole, horizontally extending axle tube is located in the center of each mounting seat. A bolt hole, perpendicular to the axle tube hole, is located on the side wall of the mounting seat. Bolts pass through the slotted hole from the inside out and are screwed into the bolt hole on the side wall of the mounting seat, fixing the mounting seat to the outer side wall of the baffle's side plate. The position of the mounting seat on the baffle is adjustable. One mounting seat is fixed to each side wall of the four sets of baffles, with eight mounting seats on the same horizontal plane. Two axle tubes pass sequentially through the axle tube holes of the four mounting seats on the same side, connecting the four sets of baffles into a single unit. A support wheel is mounted at each end of each axle tube via a deep groove ball bearing.

[0006] Furthermore, protruding bumps are evenly distributed on the back of each set of baffles.

[0007] Furthermore, the protrusions are hemispherical and arranged in a matrix on the back of the baffle, with a spacing of 10-20 mm between adjacent protrusions.

[0008] Furthermore, each shaft tube is tightly fitted with the shaft tube hole of the mounting base.

[0009] Furthermore, the device is secured to the protective wall, which consists of wall A, wall B, and a crash barrier. The back of the leftmost set of baffles is attached to the inner side of wall A on the left, the back of the rightmost set of baffles is attached to the inner side of the crash barrier on the right, and the backs of the two middle sets of baffles are attached to the left and right sides of wall B in the middle, respectively. The support wheels on the two sides of the device are placed on the grooves on the inner side of wall A and the inner side of the crash barrier, respectively.

[0010] Furthermore, the shaft tube is made of stainless steel with a diameter of 30mm, and the outer surface of the support wheels with a diameter of 100mm at both ends of the shaft tube is covered with a rubber layer, the Shore hardness of which is between 60-80HA.

[0011] Furthermore, the length of the waist-shaped hole is 30-50mm and the width is 8-12mm, which facilitates precise position adjustment of the mounting base within the waist-shaped hole.

[0012] Furthermore, the side plates are made of 3mm thick carbon steel, and the height of the side plates is the same as the height of the baffle to enhance the overall strength and stability of the baffle; the mounting base is made of cast aluminum alloy.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This device is ingeniously designed. Through the cooperation of support wheels and baffles, it can move stably on the inner channel of the A wall and the crash barrier, which can fully adapt to the complex construction environment of the three-wall structure of the railway bridge deck. It can effectively avoid the paint splashing on the surface of the protective wall due to improper manual operation or strong winds when spraying waterproof coating, thus avoiding appearance pollution.

[0015] 2. A slotted hole is provided on the baffle for fixing the mounting base. The size of the slotted hole is reasonable, so that the position of the mounting base can be precisely adjusted. This allows for flexible adjustment of the position of the shaft tube and support wheel according to different construction locations and working conditions, ensuring that the device can maintain a good working posture under various conditions and improving the convenience and accuracy of construction.

[0016] 3. The baffle adopts a C-shaped structure with side plates, which enhances its strength and stability and can better withstand external forces during construction. The hemispherical protrusions on the back of the baffle are arranged in a matrix, which increases the friction with the protective wall and prevents the device from sliding. On the other hand, it plays a buffering role to a certain extent, protecting the surface of the protective wall and helping to maintain the stability of the device during movement.

[0017] 4. The outer surface of the support wheel is covered with a rubber layer with a Shore hardness between 60-80HA. While ensuring support and movement functions, it reduces wear on the protective wall, avoids unnecessary damage to the protective wall during construction, extends the service life of the protective wall, and reduces maintenance costs. Attached Figure Description

[0018] Figure 1 This is an installation diagram of the present invention;

[0019] Figure 2 This is a three-dimensional schematic diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the baffle of this utility model;

[0021] Figure 4 This is a front view of the mounting base of this utility model;

[0022] Figure 5 for Figure 4 Side view;

[0023] The following are the labels in the diagram: 1. Protective wall; 2. Waist-shaped hole; 3. Shaft tube; 4. Mounting base; 41. Shaft tube hole; 42. Screw hole; 5. Support wheel; 6. Baffle; 61. Protrusion; 62. Side plate; 7. A wall; 8. B wall; 9. Anti-collision wall; 10. Channel. Detailed Implementation

[0024] 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.

[0025] A protective spraying device for railway bridge deck construction comprises baffles 6, mounting bases 4, shaft tubes 3, and support wheels 5. Four sets of identical baffles 6, each with a C-shaped structure, are placed vertically at intervals. Each set of baffles 6 has a side plate 62 on each side. A slotted hole 2, penetrating the center of each side plate 62, is provided for fixing the mounting base 4. A shaft tube hole 41, extending from left to right, is provided in the center of the mounting base 4. Screw holes 42, perpendicular to the shaft tube holes 41, are provided on the side wall of the mounting base 4. Bolts are inserted from the inside out. After passing through the waist-shaped hole 2, it is screwed into the screw hole 42 on the side wall of the mounting seat 4, fixing the mounting seat 4 to the outer side wall of the side plate 62 of the baffle 6, and the position of the mounting seat 4 on the baffle 6 can be adjusted; each side wall of the four sets of baffles 6 is fixed with a mounting seat 4, and the eight mounting seats 4 are on the same horizontal plane; two shaft tubes 3 pass through the shaft tube holes 41 of the four mounting seats 4 on the same side in sequence, connecting the four sets of baffles 6 into one piece; a support wheel 5 is installed at both ends of each shaft tube 3 by a deep groove ball bearing.

[0026] Furthermore, protrusions 61 protruding outwards are evenly provided on the back of each set of baffles 6.

[0027] Furthermore, the protrusion 61 is hemispherical and arranged in a matrix on the back of the baffle 6, with a spacing of 10-20mm between adjacent protrusions 61.

[0028] Furthermore, each shaft tube 3 is tightly fitted with the shaft tube hole 41 of the mounting base 4.

[0029] Furthermore, the device is secured to the protective wall 1, which consists of wall A 7, wall B 8, and crash barrier 9. The back of the leftmost set of baffles 6 is attached to the inner side of wall A 7 on the left, the back of the rightmost set of baffles 6 is attached to the inner side of crash barrier 9 on the right, and the backs of the two middle sets of baffles 6 are attached to the left and right sides of wall B 8 in the middle, respectively. The support wheels 5 on the two sides of the device are placed on the grooves 10 inside wall A 7 and inside crash barrier 9, respectively.

[0030] Furthermore, the shaft tube 3 is made of stainless steel with a diameter of 30mm. The outer surface of the support wheels 5 with a diameter of 100mm at both ends of the shaft tube 3 is covered with a rubber layer, and the Shore hardness of the rubber layer is between 60-80HA.

[0031] Furthermore, the length of the waist-shaped hole 2 is 30-50mm and the width is 8-12mm, which facilitates the precise position adjustment of the mounting base 4 within the waist-shaped hole 2.

[0032] Furthermore, the side plate 62 is made of carbon steel with a thickness of 3mm, and the height of the side plate 62 is the same as the height of the baffle 6 to enhance the overall strength and stability of the baffle 6; the mounting base 4 is made of aluminum alloy.

[0033] Working principle:

[0034] 1. Before construction, the surface of the protective wall 1 needs to be cleaned and pre-treated; use a high-pressure water gun to wash the surface of the protective wall 1 to remove dust, oil and debris, and ensure that the surface cleanliness reaches more than 95%; then check the flatness of the surface of the protective wall 1. For any uneven areas, use cement mortar to repair them. After repair, the flatness error should be controlled within ±3mm to provide a good foundation for the stable operation of this device.

[0035] 2. Assemble the device according to the design drawings, and debug and inspect the overall structure of the device; place the device on a horizontal ground and observe whether the four support wheels 5 of the device are in uniform contact with the ground. If some support wheels 5 are suspended or have poor contact, adjust the position of the mounting seat 4 in the waist-shaped hole 2 to correct the situation so that the device is in a horizontal and stable state.

[0036] 3. Prepare the mixed paint and spray gun; install a traction rope on the shaft tube of this device to move the device to the starting construction position of the protective wall 1. The four sets of baffles 6 are tightly attached to the surface of the protective wall 1, and the support wheels 5 are placed on the inner channel 10 of the A wall 7 and the inner channel 10 of the anti-collision wall 9 respectively.

[0037] 4. The operator stands behind the device and holds the spray gun, adjusting it to a suitable spraying angle, generally at a 60-75° angle to the surface of the protective wall 1, and begins the spraying operation; spray twice, with an interval of 30-60 minutes in between; the paint should be sprayed twice to a thickness of 2mm and the edge sealing should be no less than 8cm to ensure uniformity;

[0038] 5. As the paint is continuously sprayed, the operator ties one end of the traction rope to the middle of the shaft tube 3 on one side of the device, and pulls the other end of the traction rope to control the device to move slowly along the protective wall 1, so as to avoid the paint being sprayed on the protective wall 1 due to moving too fast or too slow, and effectively improve the protective effect during the spraying process.

[0039] 6. Based on the actual condition of the surface of the protective wall 1, if there are any local protrusions or depressions, adjust the position and spraying angle of this device in time; by adjusting the position of the mounting seat 4 inside the waist-shaped hole 2, change the relative position of the shaft tube 3 and the support wheel 5, so that this device can better adapt to the changes on the surface of the protective wall 1, ensure that the baffle 6 is always tightly attached to the protective wall 1, and improve the fault tolerance rate of operation in different scenarios.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective spraying device for railway bridge deck construction, characterized in that: Composed of baffles, mounting seats, shaft tubes, and support wheels, four identical sets of C-shaped baffles are placed vertically at intervals. Each set of baffles has a side plate on each side, with a through-hole in the center of each side plate for fixing the mounting seat. The mounting seat has a through-hole in the center, and a threaded hole perpendicular to but not communicating with the threaded hole on its side wall. Bolts pass through the through-hole from the inside to the outside and are screwed into the threaded hole on the side wall of the mounting seat, fixing the mounting seat to the outer side wall of the baffle's side plate. The position of the mounting seat on the baffle is adjustable. Each of the four sets of baffles has one mounting seat fixed to its side wall, with eight mounting seats on the same horizontal plane. Two shaft tubes pass sequentially through the shaft tube holes of the four mounting seats on the same side, connecting the four sets of baffles into one unit. A support wheel is mounted at each end of each shaft tube via a deep groove ball bearing.

2. The railway bridge deck construction spray protection device according to claim 1, characterized in that: Evenly distributed outward protrusions are provided on the back of each set of baffles.

3. The railway bridge deck construction spray protection device according to claim 2, characterized in that: The protrusions are hemispherical and arranged in a matrix on the back of the baffle, with a spacing of 10-20mm between adjacent protrusions.

4. The railway bridge deck construction spray protection device according to claim 1, characterized in that: Each shaft tube fits tightly into the shaft tube hole of the mounting base.

5. The railway bridge deck construction spray protection device according to claim 1, characterized in that: The shaft tube is made of stainless steel with a diameter of 30mm. The outer surface of the support wheels with a diameter of 100mm at both ends of the shaft tube is covered with a rubber layer with a Shore hardness between 60-80HA.

6. The railway bridge deck construction spray protection device according to claim 1, characterized in that: The device is secured to a protective wall, which consists of an A wall, a B wall, and a crash barrier. The back of the leftmost set of baffles is attached to the inner side of the A wall on the left, the back of the rightmost set of baffles is attached to the inner side of the crash barrier on the right, and the backs of the two middle sets of baffles are attached to the left and right sides of the B wall in the middle, respectively. The support wheels on the two sides of the device are placed on the grooves on the inner side of the A wall and the inner side of the crash barrier, respectively.

7. The railway bridge deck construction spray protection device according to claim 1, characterized in that: The waist-shaped hole has a length of 30-50mm and a width of 8-12mm.

8. The railway bridge deck construction spray protection device according to claim 1, characterized in that: The side panels are made of 3mm thick carbon steel, and the height of the side panels is the same as the height of the baffle; the mounting base is made of cast aluminum alloy.

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