Integrally-formed automobile EPP ceiling

Abstract

The utility model relates to the technical field of automobile accessories, in particular to an integrally-formed automobile EPP ceiling which comprises an integrally-formed automobile EPP ceiling body. The reinforcing structure is installed inside the integrally-formed automobile EPP ceiling in an embedded mode, and the end of the reinforcing structure penetrates through the outside of the integrally-formed automobile EPP ceiling; when a user completely opens or closes the ventilation pipe, the elastic piece can be automatically clamped with the corresponding clamping groove, the opening and closing piece can be locked at the angle so as to ensure that the ventilation pipe can be normally ventilated or closed, the user does not need to constantly control the angle of the opening and closing piece, and the state of the user in the automobile is not affected. And the burden of ventilation of a user through the integrally-formed automobile EPP ceiling is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to an integrally formed automobile EPP roof. Background Art

[0002] The one-piece EPP car roof is made of expanded polypropylene (EPP) material, which has the advantages of environmental protection, light weight, good economy, excellent mechanical properties and assembly. This kind of roof is manufactured through one-piece molding process, which not only reduces the harm of glass fiber to workers, improves the air quality in the car, but also reduces the weight of the whole vehicle, improves fuel economy and driving performance.

[0003] At present, a Chinese patent discloses an anti-seismic and compression-resistant EPP automobile protective ceiling (publication number CN213383837U). The EPP automobile protective ceiling of the utility model adopts EPP integrated foaming molding, and adds a steel support structure therein, while maintaining the temperature resistance and sound insulation performance of the EPP board, its anti-seismic and compression performance is improved, and high-density EPP material is added at the connection to further improve its stability. The EPP automobile protective ceiling of the utility model is provided with air holes, so that passengers can use their fingers to press the pressure plate to open the air holes while pulling the safety handle, thereby enhancing the air circulation in the car.

[0004] Since the above-mentioned device improves the ventilation effect in the vehicle by adding a second reinforcement structure, the second reinforcement mechanism requires the user to press continuously for normal ventilation. However, ventilation also takes a certain amount of time. When the user is driving or in other states where it is inconvenient to contact the second reinforcement structure, continuously pressing the second reinforcement structure will interfere with the user's state, posing a safety hazard.

[0005] Therefore, an integrally formed automobile EPP roof is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide an integrally formed automobile EPP ceiling in order to solve the above-mentioned problem, thereby improving the problem that the existing integrally formed automobile EPP ceiling with ventilation function needs to be continuously pressed for ventilation, which easily interferes with the original state of the user.

[0007] The utility model achieves the above-mentioned purpose through the following technical scheme, an integrally formed automobile EPP roof, comprising: an integrally formed automobile EPP roof; a reinforcement structure, wherein the reinforcement structure is embedded and installed inside the integrally formed automobile EPP roof, and the end of the reinforcement structure passes through the outside of the integrally formed automobile EPP roof.

[0008] Preferably, the reinforcement structure includes a reinforcement steel bar embedded and installed inside the one-piece automobile EPP ceiling, a ventilation pipe is fixedly connected to the surface of the reinforcement steel bar, one end of the ventilation pipe passes through the outside of the one-piece automobile EPP ceiling, an opening and closing piece is rotatably connected to the inside of the ventilation pipe, the bottom of the opening and closing piece passes through the ventilation pipe in turn and extends to the outside of the one-piece automobile EPP ceiling, the two ends of the ventilation pipe are separated by the opening and closing piece, the surface of the opening and closing piece is sleeved with a cylinder fixedly connected to the ventilation pipe, and the inner side of the cylinder is provided with two card slots, The angle between the two card slots is ninety degrees, and the intersection of the angle between the two card slots coincides with the axis line of the opening and closing piece. The surface of the opening and closing piece is fixedly connected with a spring piece that is engaged with the adjacent card slot. When the user fully opens or closes the ventilation pipe, the spring piece can automatically engage with the corresponding card slot, which can lock the opening and closing piece at this angle to ensure that the ventilation pipe can be ventilated or closed normally. This does not require the user to control the angle of the opening and closing piece at all times, does not affect the status of the user in the car, and reduces the burden on the user to ventilate through the one-piece molded car EPP ceiling.

[0009] Preferably, the horizontal cross-section of the slot is an isosceles triangle, and the horizontal cross-section of the spring piece is a V-shape, which ensures that the user can rotate the spring piece in or out of the slot by rotating it vigorously, without the user having to actively adjust the shape of the spring piece before rotating it, thereby reducing the adjustment burden on the user.

[0010] Preferably, the edges and corners of the spring sheet and the slot are rounded, which can prevent the spring sheet from being unable to enter and exit the slot normally due to mutual interference between the spring sheet and the slot, thereby reducing the failure rate of the reinforcement structure.

[0011] Preferably, a fan-shaped groove connected to the card slot is provided inside the cylinder, a positioning block slidingly connected to the fan-shaped groove is fixedly connected to the surface of the opening and closing piece, the spring piece is fixedly connected to one end of the positioning block, and the positioning block can be rotated within the fan-shaped groove at an angle of ninety degrees, which can limit the opening and closing piece to only rotate ninety degrees, not only ensuring that the opening and closing piece can open the ventilation pipe to the maximum extent or completely separate the ventilation pipe, but also assisting the user to align the spring piece with the card slot, reducing the locking burden on the opening and closing piece.

[0012] Preferably, a reserved groove is provided at one end of the positioning block, and the spring sheet is fixedly connected to the inside of the reserved groove, which can reserve sufficient deformation space for the spring sheet and further reduce the failure rate of the reinforcement structure.

[0013] Preferably, an adjusting cross bar is fixedly connected to the bottom of the opening and closing piece, and both ends of the adjusting cross bar are rounded. The user can rotate the opening and closing piece more easily by adjusting the cross bar, further reducing the adjustment difficulty for the user.

[0014] Preferably, the bottom of the ventilation duct is fixedly connected and communicated with a high-temperature resistant rubber air guide frame, and the bottom of the high-temperature resistant rubber air guide frame extends to the outside of the one-piece molded automobile EPP roof. When a user under the high-temperature resistant rubber air guide frame collides with the high-temperature resistant rubber air guide frame, the high-temperature resistant rubber air guide frame can be deformed accordingly to prevent the user from colliding with foreign objects, thereby reducing the probability of user injury and thereby improving the safety factor of the reinforcement structure.

[0015] Preferably, a dustproof net is embedded in the interior of the ventilation duct and is arranged on the side of the opening and closing piece facing away from the high-temperature resistant rubber air guide frame. This can prevent external dust from entering the vehicle through the ventilation duct, thereby improving the cleanliness of the ventilation in the vehicle.

[0016] The beneficial effects of the utility model are:

[0017] 1. When the user fully opens or closes the ventilation pipe, the spring piece can automatically engage with the corresponding card slot, which can lock the opening and closing piece at this angle to ensure that the ventilation pipe can be ventilated or closed normally. In addition, the user does not need to control the angle of the opening and closing piece at all times, and does not affect the status of the user in the car, reducing the burden of the user ventilating through the one-piece EPP car ceiling;

[0018] 2. The design of fan-shaped groove and positioning block can limit the opening and closing piece to rotate only ninety degrees. It can not only ensure that the opening and closing piece can open the ventilation pipe to the maximum extent or completely separate the ventilation pipe, but also assist the user to align the spring piece with the slot, reducing the locking burden on the opening and closing piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the reinforcement structure in the utility model;

[0021] Figure 3 It is a structural schematic diagram of a partial cutout of the reinforcement structure in the utility model;

[0022] Figure 4 It is a cross-sectional schematic diagram of a local cut-away structure of the reinforcement structure in the utility model;

[0023] Figure 5 It is a schematic diagram of the arrangement of the fan-shaped grooves and the clamping grooves inside the cylinder in the utility model.

[0024] In the figure: 1. One-piece EPP car roof; 2. Reinforcement structure; 201. Reinforced steel bars; 202. Ventilation duct; 203. Opening and closing piece; 204. Cylinder; 205. Slot; 206. Shrapnel; 207. Fan-shaped slot; 208. Positioning block; 209. Reserved slot; 210. Adjustment cross bar; 211. High temperature resistant rubber air guide frame; 212. Dustproof net. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in 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 in 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.

[0026] When implementing: Figure 1-5 As shown, an integrally formed automobile EPP roof comprises: an integrally formed automobile EPP roof 1; a reinforcement structure 2, wherein the reinforcement structure 2 is embedded and installed inside the integrally formed automobile EPP roof 1, and an end of the reinforcement structure 2 penetrates to the outside of the integrally formed automobile EPP roof 1;

[0027] The specific steps of manufacturing the one-piece automotive EPP roof 1 are as follows:

[0028] 1. Prepare materials: Select suitable polypropylene raw materials and add appropriate additives as needed, such as antistatic agents, flame retardants, etc., and then install the prefabricated reinforcement structure 2 in the corresponding position of the matching mold of the one-piece automotive EPP roof 1.

[0029] 2. Melting: Heat the polypropylene raw material to its melting point to make it viscous and reach an injectable state.

[0030] 3. Injecting the foaming agent: Inject the molten polypropylene and the foaming agent into a matching mold of the one-piece automobile EPP roof 1, and control the injection amount and injection speed to make the foaming agent evenly distributed in the polypropylene.

[0031] 4. Foaming reaction: Under the preset temperature and pressure, the foaming agent reacts with the polypropylene to produce a large amount of gas, which causes the polypropylene to expand and form an integrated automotive EPP roof 1.

[0032] 5. Cooling: The one-piece automobile EPP roof 1 is cooled and solidified by lowering the temperature.

[0033] 6. Dimension trimming: as required, the dimension of the one-piece molded automobile EPP ceiling 1 after solidification is trimmed, such as cutting, grinding, etc.

[0034] 7. Quality inspection: Inspect the finished product of the one-piece automobile EPP ceiling 1 to ensure that its quality meets the requirements.

[0035] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the reinforcement structure 2 includes a reinforcement steel bar 201 embedded and installed inside the one-piece EPP roof 1 of the automobile. A ventilation pipe 202 is fixedly connected to the surface of the reinforcement steel bar 201. One end of the ventilation pipe 202 penetrates to the outside of the one-piece EPP roof 1 of the automobile. The inside of the ventilation pipe 202 is rotatably connected to an opening and closing piece 203. The bottom of the opening and closing piece 203 sequentially penetrates the ventilation pipe 202 and extends to the outside of the one-piece EPP roof 1 of the automobile. At this time, both ends of the ventilation pipe 202 are connected by The opening and closing piece 203 is separated, and the surface of the opening and closing piece 203 is sleeved with a cylinder 204 fixedly connected to the ventilation pipe 202. Two card slots 205 are opened on the inner side of the cylinder 204. The angle between the two card slots 205 is 90 degrees. The intersection of the angle between the two card slots 205 coincides with the axis of the opening and closing piece 203. The surface of the opening and closing piece 203 is fixedly connected with a spring piece 206 that is engaged with the adjacent card slot 205; the horizontal cross-section shape of the card slot 205 is an isosceles triangle, and the spring piece 206 is The horizontal cross-section is V-shaped; the corners of the spring piece 206 and the slot 205 are rounded; the cylinder 204 is provided with a fan-shaped slot 207 connected to the slot 205, and the surface of the opening and closing piece 203 is fixedly connected with a positioning block 208 that is slidably connected to the fan-shaped slot 207, the spring piece 206 is fixedly connected to one end of the positioning block 208, and the positioning block 208 can rotate within the fan-shaped slot 207 at an angle of ninety degrees; a reserved slot 209 is provided at one end of the positioning block 208, and the spring piece 206 is fixedly connected to the fan-shaped slot 207. Inside the reserved groove 209; the bottom of the opening and closing piece 203 is fixedly connected with an adjusting cross bar 210, and both ends of the adjusting cross bar 210 are rounded; the bottom of the ventilation pipe 202 is fixedly connected and connected with a high-temperature resistant rubber air guide frame 211, and the bottom of the high-temperature resistant rubber air guide frame 211 passes through the outside of the one-piece molded automobile EPP roof 1; the interior of the ventilation pipe 202 is embedded with a dustproof net 212, and the dustproof net 212 is arranged on the side of the opening and closing piece 203 facing away from the high-temperature resistant rubber air guide frame 211.

[0036] When the utility model is in use, taking the state in which the opening and closing piece 203 blocks the ventilation pipe 202 as an example, when the user needs to ventilate the vehicle, the user only needs to rotate the opening and closing piece 203 in the corresponding direction, and the two side walls of the opening and closing piece 203 are separated from the ventilation pipe 202 during the rotation. At this time, the outside air can quickly flow in through the space between the ventilation pipe 202 and the opening and closing piece 203 to achieve the purpose of ventilation. During the rotation of the opening and closing piece 203, the opening and closing piece 203 synchronously drives the spring piece 206 to rotate through the positioning block 208. At this time, the spring piece 206 is separated from the connected slot 205 and is close to another slot. 205. When the opening and closing piece 203 rotates ninety degrees, the spring piece 206 is just aligned with another slot 205. The spring piece 206 loses its obstruction and is stuck in the slot 205. The opening and closing piece 203 is firmly locked in the ventilation pipe 202 by the cylinder 204 through the slot 205, the spring piece 206 and the positioning block 208. This can make the airflow pass through the ventilation pipe 202 more stably or make the opening and closing piece 203 stably block the ventilation pipe 202. This does not require the user to control the angle of the opening and closing piece 203 at all times, does not affect the status of the user in the car, and reduces the burden of the user ventilating through the one-piece molded automobile EPP ceiling 1.

[0037] It should be noted that the one-piece automobile EPP roof 1 and the dustproof net 212 in the above description are both relatively mature devices in the existing technology. The specific model can be selected according to actual needs and will not be described in detail here.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An integrally formed automotive EPP roof, characterized in that: include: One-piece automotive EPP roof (1); A reinforcement structure (2), wherein the reinforcement structure (2) is embedded and installed inside the one-piece automobile EPP roof (1), and an end of the reinforcement structure (2) penetrates to the outside of the one-piece automobile EPP roof (1); The reinforcement structure (2) comprises a reinforcement steel bar (201) embedded and installed inside the one-piece EPP roof (1) of the automobile, a ventilation pipe (202) is fixedly connected to the surface of the reinforcement steel bar (201), one end of the ventilation pipe (202) penetrates to the outside of the one-piece EPP roof (1) of the automobile, an opening and closing piece (203) is rotatably connected inside the ventilation pipe (202), the bottom of the opening and closing piece (203) penetrates through the ventilation pipe (202) in sequence and extends to the outside of the one-piece EPP roof (1) of the automobile, and the ventilation pipe (202) is connected to the outside of the one-piece EPP roof (1) of the automobile. The two ends of the air duct (202) are separated by an opening and closing piece (203). The surface of the opening and closing piece (203) is sleeved with a cylinder (204) fixedly connected to the ventilation duct (202). The inner side of the cylinder (204) is provided with two slots (205). The angle between the two slots (205) is ninety degrees. The intersection of the angle between the two slots (205) coincides with the axis of the opening and closing piece (203). The surface of the opening and closing piece (203) is fixedly connected with a spring piece (206) that is engaged with the adjacent slot (205).

2. The one-piece EPP roof for automobile according to claim 1, characterized in that: The horizontal cross-sectional shape of the clamping slot (205) is an isosceles triangle, and the horizontal cross-sectional shape of the spring sheet (206) is a V-shape.

3. The one-piece EPP roof for automobile according to claim 2, characterized in that: The edges and corners of the spring sheet (206) and the slot (205) are rounded.

4. The one-piece EPP roof for automobile according to claim 1, characterized in that: The cylinder (204) is provided with a fan-shaped groove (207) in communication with the clamping groove (205), the surface of the opening and closing piece (203) is fixedly connected with a positioning block (208) which is slidably connected with the fan-shaped groove (207), the spring piece (206) is fixedly connected to one end of the positioning block (208), and the positioning block (208) can rotate within the fan-shaped groove (207) at an angle of ninety degrees.

5. The one-piece EPP roof for automobile according to claim 4, characterized in that: A reserved groove (209) is provided at one end of the positioning block (208), and the spring piece (206) is fixedly connected to the inside of the reserved groove (209).

6. The one-piece EPP roof for automobile according to claim 1, characterized in that: The bottom of the opening and closing piece (203) is fixedly connected with an adjusting cross bar (210), and both ends of the adjusting cross bar (210) are rounded.

7. The one-piece EPP roof for automobile according to claim 1, characterized in that: The bottom of the ventilation pipe (202) is fixedly connected to and communicates with a high-temperature resistant rubber air guide frame (211), and the bottom of the high-temperature resistant rubber air guide frame (211) penetrates to the outside of the one-piece molded automobile EPP roof (1).

8. The one-piece EPP roof for automobile according to claim 7, characterized in that: A dustproof net (212) is embedded and installed inside the ventilation pipe (202), and the dustproof net (212) is arranged on a side of the opening and closing piece (203) facing away from the high-temperature resistant rubber air guide frame (211).

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