Subway roof air conditioner opening protection device

Abstract

The utility model discloses a subway roof air conditioner opening protection device which comprises a protection frame, the protection frame comprises two end portion frames and two side plates, the two end portion frames and the two side plates are sequentially arranged at intervals and connected end to end, and a square frame is formed. Top supporting frames are evenly distributed between the two end frames in the square frame, the left end and the right end of each top supporting frame are connected with the inner sides of the corresponding side plates respectively, the inner sides of the two end frames are connected through longitudinal beams, waterproof covers are laid on the tops of the end frames, the side plates and the top supporting frames, and the waterproof covers are fixed to the square frame through rivets. Sealing rubber strips are arranged at the bottoms of the end frames and the bottoms of the side plates, and lifting lugs are symmetrically arranged on the outer sides of the two side plates. The device is simple in overall structure, and the production efficiency of the subway roof is improved while the vehicle body raining experiment conditions are effectively met.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical engineering, and particularly relates to a protection device for an air-conditioning opening on the roof of a subway car. Background Technique

[0002] Aluminum alloy car bodies have the advantages of light weight, corrosion resistance, good appearance flatness, and being easy to manufacture car bodies with complex and beautiful curved surfaces, so they are welcomed by urban transportation companies and railway transportation departments around the world. At present, more than 30,000 aluminum alloy urban rail vehicles and railway transportation vehicles have been put into operation, and some developing countries are also vigorously developing aluminum alloy car bodies and have the ability to mass-produce aluminum alloy car bodies.

[0003] After the aluminum alloy subway is assembled by welding, it is necessary to conduct a rain test on the whole vehicle. Turn on the rain test device. After the pressure gauge shows a pressure of 0.10 - 0.30 MPa, start raining. The rain head moves back and forth at a constant speed of (8 - 10) m / min. The water flow sprayed by the nozzle should cover the roof, and a uniform and slow water flow should form on the entire outer surface of the vehicle body. Continuously spray water on the vehicle for 20 - 23 minutes. Its main function is to simulate the rain erosion in the natural environment to test the waterproof performance and sealing performance of the subway car body. In this way, we can ensure that the subway car body can maintain a good operating state in a real rain environment.

[0004] According to the structure of the aluminum alloy car body, the air-conditioning opening on the roof is a hollow square frame structure. When conducting a rain test on the whole vehicle, the air-conditioning opening on the roof is not closed. If it is not protected, the water flow will flow into the vehicle through the air-conditioning opening, affecting the rain test result. Therefore, it is necessary to design a special protection device for the air-conditioning opening to ensure the accuracy of the test result. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is: in the prior art, when conducting a rain test on the whole subway vehicle, the air-conditioning opening on the roof is not closed. If it is not protected, the water flow will flow into the vehicle through the air-conditioning opening, affecting the rain test result.

[0006] To solve the above technical problem, a technical solution provided by the utility model is:

[0007] A protection device for the air conditioner outlet on the subway car roof, comprising a protection frame. The protection frame includes end frames and side plates. There are two end frames and two side plates respectively. The two end frames and the two side plates are arranged at intervals in sequence and connected end to end to form a square frame. Inside the square frame, top support frames are evenly distributed between the two end frames. The left and right ends of each top support frame are respectively connected to the inner sides of the corresponding side plates. The inner sides of the two end frames are connected by longitudinal beams. The height of the end frame at the connection part with the side plate is the same as the height of the side plate. A waterproof cover is laid on the tops of the end frame, the side plate and the top support frame. The waterproof cover is fixed on the square frame by rivets. Sealing rubber strips are arranged at the bottoms of the end frame and the side plate. When this device is placed on the car roof, the sealing rubber strips are in contact with the upper surface of the car roof, making the contact surface between the whole frame and the car roof form a seal, preventing water from entering the car through the gap between the frame and the car roof during the rain test and affecting the test results. On the outer sides of the two side plates, lifting lugs are symmetrically arranged respectively, which is convenient for the crane to hoist this device onto the subway car roof that needs to be tested.

[0008] Further, the two end frames have the same size and are symmetrically arranged with each other. The two side plates have the same size and are symmetrically arranged with each other. The tops of the two end frames are arc-shaped tops. The top support frame is an arc-shaped top support frame, and its arc degree is the same as the arc degree of the top of the end frame. One end of the top support frame is connected to the inner side of one of the side plates, and the other end is connected to the inner side of the other side plate. The tops of the top support frame and the end frame are both on the same radian surface, which is convenient for the above-mentioned waterproof cover to cover. After the waterproof cover covers, the circumference of the waterproof cover is fixed on the outer side surfaces of the end frame and the side plate by the rivets, and when the fixed waterproof cover is undergoing the rain test, there shall be no water leakage phenomenon.

[0009] Further, the top support frames near the two end frames are respectively connected to the corresponding end frames, which is convenient for the waterproof cloth to cover and makes the waterproof cloth have a support at the end. The longitudinal beam is arranged below the top support frame and is fixedly connected together at the intersection with the top support frame, increasing the support of the overall frame.

[0010] Further, the bottoms of the end frame and the side plate are on the same plane, and its flatness is not greater than 2 mm, avoiding the phenomenon of excessive water seepage at the bottom.

[0011] Further, the waterproof cover is a waterproof nylon cloth.

[0012] Further, the sealing rubber strip is an ethylene propylene diene monomer (EPDM) sealing strip.

[0013] Furthermore, all connections of this device are welded, and all connection welds are full welds. After full welding, the welds need to be polished to make them smooth, preventing the waterproof nylon cloth on them from being scratched and affecting the experimental results.

[0014] Furthermore, the overall size of this device matches the roof air-conditioning opening of the subway to be subjected to the rain test.

[0015] The beneficial effects of the present utility model are as follows:

[0016] 1. In this device, waterproof covers fixed by rivets are laid on the tops of the end frames, side plates, and top support frames. Sealing rubber strips are provided at the bottoms of the end frames and side plates. When this device is placed on the air-conditioning opening of the subway that needs to be subjected to the rain test, it can form a seal at the contact surface between the entire frame and the roof, preventing water from entering the vehicle through the gap between the frame and the roof during the rain test and affecting the experimental results.

[0017] 2. While the top of this protective device is used for the waterproof test with the waterproof cover, it can also reduce the weight of this protective device. It is light in weight and convenient for this device to be lifted and transported using the lifting lugs on it, and it is easy to use.

[0018] 3. The overall structure of this device is simple. While effectively meeting the conditions for the rain test of the vehicle body, it also improves the production efficiency of the subway roof.

[0019] In order to make the above and other purposes, features, and advantages of the present utility model more obvious and understandable, the following specifically gives preferred embodiments and, in conjunction with the accompanying drawings, makes the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only partial schematic diagrams of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a front structural schematic diagram of a protective device for a subway roof air-conditioning opening of the present utility model;

[0022] Figure 2 It is a reverse structural schematic diagram of a protective device for a subway roof air-conditioning opening of the present utility model;

[0023] Figure 3 It is Figure 2 a top view of;

[0024] Figure 4 It is Figure 2 a bottom view of;

[0025] Figure 5 For Figure 1 or Figure 2 Structural schematic diagram of the middle end frame.

[0026] In the figure, 1 - end frame, 2 - side plate, 3 - top support frame, 4 - longitudinal beam, 5 - lifting lug, 6 - waterproof nylon cloth, 7 - ethylene propylene diene monomer (EPDM) sealing strip, 8 - rivet. Specific implementation mode

[0027] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present invention. It should be understood that the drawings and embodiments of the present invention are only for illustrative purposes and are not used to limit the protection scope of the present invention.

[0028] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only for illustrative purposes and are not used to limit the scope of these messages or information.

[0030] Embodiment: A protection device for the air - conditioning opening on the roof of a subway car, including a protection frame. The protection frame includes two end frames 1 and two side plates 2. The top of the two end frames 1 is an arc - shaped top, and the highest point of the arc is located at the mid - point of the end frame 1, and the height of the highest point of the arc is higher than the heights of the two ends of the end frame 1; the two side plates 2 are flat plates with the same height, and the heights of the two ends of the two end frames 1 are consistent with the heights of the two side plates 2.

[0031] The two end frames 1 and the two side plates 2 are arranged at intervals in sequence and welded end - to - end to form a square frame. The size of this square frame is larger than the size of the air - conditioning opening on the subway car roof to be protected, so as to be able to completely cover the air - conditioning opening. The welded joints are all full - welds, and the welds after welding are polished smoothly. The bottoms of the two end frames 1 and the bottoms of the two side plates 2 are on the same plane, and the flatness is not greater than 2 mm.

[0032] There are seven top support frames 3 evenly distributed between the two end frames 1 inside the square frame. All seven top support frames 3 are arc-shaped top support frames 3, and their arc degrees and arc directions are consistent with the arc degrees and arc directions of the tops of the end frames 1.

[0033] One end of each top support frame 3 is respectively connected to the inner side of one of the side plates 2, and the other end is connected to the inner side of the other side plate 2. The tops of the top support frames 3 and the tops of the end frames 1 are all arranged on the same radian surface.

[0034] In addition, the top support frames 3 close to the tops of the two end frames 1 are respectively connected to the corresponding top frames. Full welding is carried out at the joints of the top support frames 3 and the side plates 2 and at the joints of the top support frames 3 and the end frames 1, and the weld seams after welding are polished.

[0035] The two inner sides of the two end frames 1 inside the square frame are connected by longitudinal beams 4. The longitudinal beams 4 are arranged below the top support frames 3, and the intersections of the longitudinal beams 4 and the top support frames 3 are all welded together to increase the support of the overall frame. Full welding is carried out at the joints of the longitudinal beams 4 and the end frames 1 and at the joints of the longitudinal beams 4 and the top support frames 3, and the weld seams after welding are polished.

[0036] Two lifting lugs 5 are symmetrically arranged on the outer sides of the two side plates 2, which is convenient for the overhead crane to lift this device.

[0037] The tops of the top support frames 3 and the tops of the end frames 1 are all arranged on the same radian surface. A waterproof nylon cloth 6 is laid on the tops of the end frames 1, side plates 2 and top support frames 3. The circumference of the waterproof nylon cloth 6 is fastened to the outer sides of the side plates 2 and end frames 1 by rivets 8. When fastening, there should be no water leakage between the waterproof nylon cloth 6 and the outer sides of the side plates 2 and end frames 1.

[0038] EPDM sealing strips 7 are arranged at the bottoms of the end frames 1 and side plates 2. When this device is placed on the roof of the vehicle, the sealing strips 7 are in contact with the upper end face of the roof, so that the contact surface between the whole frame and the roof forms a seal, preventing water from entering the vehicle through the gap between the frame and the roof during the rain test and affecting the test results.

[0039] When in use, pass the sling through the lifting lugs 5, and use the overhead crane to lift and place it at the air-conditioning outlet of the subway that needs to be subjected to the rain test. This device completely covers the air-conditioning outlet, checks the sealing degree of the EPDM sealing strips 7, prevents water from entering the vehicle through the gap between the frame and the roof during the rain test and affecting the test results. After there is no problem, the rain test can be carried out.

[0040] In addition to being used for the rain test, when the vehicle body is being transported, this device can be placed at the air-conditioning outlet. After the whole vehicle is covered with canvas, the height of the air-conditioning outlet can be ensured so that there is no water accumulation at the air-conditioning outlet.

[0041] Note that the above is only the preferred embodiment of the present utility model and the technical principles applied. Those skilled in the art will understand that the present utility model is not limited to the specific embodiments here. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present utility model. Therefore, although the present utility model has been described in detail through the above embodiments, the present utility model is not limited to the above embodiments only. Without departing from the concept of the present utility model, more other equivalent embodiments can be included, and the scope of the present utility model is determined by the scope of the appended claims.

Claims

1. A protection device for the air-conditioning opening on the subway roof, comprising a protection frame, characterized in that: The protective frame includes end frames and side plates. There are two end frames and two side plates. The two end frames and the two side plates are arranged at intervals in sequence and connected end to end to form a square frame. Inside the square frame, top support frames are evenly distributed between the two end frames. The left and right ends of each top support frame are respectively connected to the inner sides of the corresponding side plates. The inner sides of the two end frames are connected by longitudinal beams. Waterproof covers are laid on the tops of the end frames, side plates and the top support frames. The waterproof covers are fixed to the square frame with rivets. Sealing rubber strips are provided at the bottoms of the end frames and the side plates. Lifting lugs are symmetrically arranged on the outer sides of the two side plates.

2. The protection device for the air-conditioning opening on the subway car roof according to claim 1 is characterized in that: The two end frames have the same size and are symmetrically arranged with each other. The two side plates have the same size and are symmetrically arranged with each other. The tops of the two end frames are arc-shaped tops. The top support frame is an arc-shaped top support frame, and its arc degree is consistent with the arc degree of the top of the end frame. One end of the top support frame is connected to the inner side of one of the side plates, and the other end is connected to the inner side of the other side plate. The tops of the top support frame and the end frame are arranged on the same arc surface.

3. The protection device for the air-conditioning opening on the subway car roof according to claim 2, characterized in that: The top support frames close to the two end frames are respectively connected to the corresponding end frames. The longitudinal beams are arranged below the top support frames and are fixedly connected together at the intersections with the top support frames.

4. The protection device for the air conditioner opening on the subway car roof according to claim 3, characterized in that: The bottoms of the end frames and the bottoms of the side plates are on the same plane, and the flatness is not greater than 2 mm.

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