Air return and light transmission shielding grating assembly

Abstract

In order to solve the problem that structures with gratings, such as toilet doors of railway vehicles and the like, cannot be used due to the fact that the shielding function is completely lost due to the fact that the gratings are easily damaged or the angles of the gratings are changed under the condition that the railway vehicles run for a long time, the utility model provides the air-returning and light-passing shielding grating assembly for the railway vehicles. Comprising a rectangular frame and a plurality of grating strips. The rectangular frame comprises two cross beams and two vertical beams; the upper portions of the grating strips are cavities, connecting columns are arranged on the upper portions and the lower portions in the cavities in the length direction of the grating strips, and the outer sides of the bottoms of the cavities extend downwards in an inclined mode to form blocking strips. The grating strips are fixedly connected with the longitudinal beams and are parallel to the cross beams, and the bottom ends of the upper row of grating strips are higher than the top ends of the lower row of grating strips; the door has the advantages of being simple in structure, convenient to install, good in shielding effect, high in strength, firm, reliable and not prone to deformation or damage even if a railway vehicle runs for a long time, and high in safety degree in use of the door.

Description

Technical Field

[0001] The utility model relates to a rail vehicle, in particular to a return air light grille component of the rail vehicle. Background Art

[0002] The structure of the toilet door of a rail vehicle needs to achieve the effects of air return, light transmission, and shielding. When looking straight ahead, you cannot see what is inside. Ordinary grilles are prone to damage or angle changes during long-term operation of rail vehicles. Once damaged or the angle changes, the shielding function will be completely lost, resulting in the door being unusable. Summary of the invention

[0003] In order to solve the above problems, the utility model provides a grille component for rail vehicle return air passage and light shielding which has simple structure, convenient installation, good shielding effect, firmness, reliability and not easy to deform.

[0004] The utility model discloses a grille with shieldable return air passage for rail vehicles, comprising a rectangular frame and a plurality of grille bars; the rectangular frame comprises two cross beams and two vertical beams; the upper portion of the grille bars is a cavity, and connecting columns are arranged at the upper and lower portions of the cavity along the length direction of the grille bars, and the outer side of the bottom of the cavity extends obliquely downward to form a stop bar; the grille bars are fixedly connected to the longitudinal beams, and are parallel to the cross beams, and the bottom ends of the upper row of grille bars are higher than the top ends of the lower row of grille bars.

[0005] Furthermore, the upper portion of the baffle is an arc surface, and the lower portion is a vertical plane.

[0006] Furthermore, the end of the baffle bar is also provided with a horizontal bend inwardly at 90°.

[0007] Furthermore, the grille bars are fixedly connected to the longitudinal beams by countersunk screws or by closed-type flat round head blind rivets.

[0008] Furthermore, the connecting column is a cylinder, which penetrates the cavity of the entire grid bar along the length direction of the grid bar. The connecting column also plays a role in strengthening the strength of the grid bar.

[0009] Furthermore, the inner side surface of the grille bar cavity is a vertical plane, so that the plane where a plurality of grille bars are arranged is parallel to the door surface.

[0010] Furthermore, the transverse beam and the longitudinal beam are provided with flanges, and the flanges are bonded to the door body by structural adhesive and then fixedly connected by screws.

[0011] The crossbeam and the longitudinal beam of the utility model are composed of a grille that can block the return air of the rail vehicle and can be installed on the doors of the rail vehicle toilet, storage room, etc. It has a simple structure, is easy to install, has a good shielding effect, and has high strength. Even if the rail vehicle runs for a long time, it is firm and reliable, not easy to deform or damage, so that the use of the door has a high degree of safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of the grille composition and door installation of the rail vehicle return air light-blocking grille of the utility model.

[0013] Figure 2 for Figure 1 Longitudinal cross-sectional view of .

[0014] The markings in the figure are:

[0015] 1- cross beam; 2- longitudinal beam; 3- grille bar; 4- cavity; 5- stop bar; 6- connecting column; 7- countersunk screw; 8- closed type flat round head blind rivet; 9- cross beam flange; 10- structural adhesive. DETAILED DESCRIPTION

[0016] Combine the following Figure 1-2 The components of the grille capable of shielding return air from the rail vehicle of the utility model are described in detail.

[0017] The utility model discloses a grille composition of a rail vehicle return air passage and light shielding, comprising a rectangular frame and a plurality of grille bars 3; the rectangular frame comprises two cross beams 1 and two vertical beams 2.

[0018] The upper part of the grille bar 3 is a cavity 4, and the inner side of the cavity 4 is a vertical plane. In this way, the plane where the grille bars are arranged is parallel to the door surface.

[0019] Connecting columns 6 are provided above and below the cavity 4 along the length direction of the grille bar 1. The connecting columns 6 are cylindrical and penetrate the cavity 4 of the entire grille bar 3 along the length direction of the grille bar 3. The connecting columns 6 also play a role in strengthening the strength of the grille bar 3.

[0020] The outer side of the bottom of the cavity 4 extends obliquely downward to form a stop bar 5; the upper part of the stop bar 5 is an arc surface, and the lower part is a vertical plane. The end of the stop bar 5 is also provided with a horizontal bend inward at 90 degrees.

[0021] The connecting column 6 in the grid bar 3 is fixedly connected to the longitudinal beam 2 at one end by a closed flat round head blind rivet 8, and the other end is fixedly connected by a countersunk screw 7. The grid bar 3 is parallel to the cross beam 1, and the bottom end of the upper grid bar 3 is higher than the top end of the lower grid bar 3.

[0022] The top end of the upper crossbeam 1 and the bottom end of the lower crossbeam 1 are provided with crossbeam flanges 9, and correspondingly, the outer end of the longitudinal beam 2 is also provided with flanges, which are fixedly connected to the door body. The flanges are bonded to the door body by structural adhesive 10 and then fixedly connected by screws.

[0023] The utility model is a grille composition for returning air to and through the rail vehicle and capable of being shielded, which can be installed on doors of toilets, storage rooms, etc. of rail vehicles, has a simple structure, is easy to install, has a good shielding effect, and has high strength. Even if the rail vehicle is in operation for a long time, it is firm and reliable, not easy to be deformed or damaged, and the use of the door has a high degree of safety.

[0024] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A grille composition with light-blocking function for return air, characterized in that: It includes a rectangular frame and a plurality of grille bars; the rectangular frame includes two horizontal beams and two vertical beams; the upper part of the grille bar is a cavity, and connecting columns are provided above and below the cavity along the length direction of the grille bar, and the outer side of the bottom of the cavity extends obliquely downward to form a stop bar; the grille bar is fixedly connected to the longitudinal beam and is parallel to the horizontal beam, and the bottom end of the upper row of grille bars is higher than the top end of the lower row of grille bars.

2. The grille composition for return air and light shielding according to claim 1 is characterized in that: The upper part of the baffle bar is an arc surface, and the lower part is a vertical plane.

3. The grille composition for return air and light shielding according to claim 2 is characterized in that: The end of the baffle bar is also provided with a horizontal bend inwardly at 90°.

4. The grille assembly for return air and light shielding according to any one of claims 1 to 3, characterized in that: The grille bars are fixedly connected to the longitudinal beams by countersunk screws or by closed-type flat round head blind rivets.

5. The grille assembly for return air and light shielding according to any one of claims 1 to 3, characterized in that: The connecting column is a cylinder and penetrates the cavity of the entire grid bar along the length direction of the grid bar.

6. The grille assembly for return air and light shielding according to any one of claims 1 to 3, characterized in that: The inner side surface of the grid bar cavity is a vertical plane.

7. The grille assembly for return air and light shielding according to any one of claims 1 to 3, characterized in that: The transverse beam and the longitudinal beam are provided with flanges, and the flanges are bonded to the door body by structural adhesive and then fixedly connected by screws.

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