Connecting structure of passenger car air duct plate and passenger car framework

Abstract

The utility model discloses a connecting structure of a passenger car air duct plate and a passenger car framework, which comprises an air duct plate, a passenger car inner side framework and a connecting piece, one side of the air duct plate is rotatably connected with a top supporting piece in a passenger car through a hinge, the upper end of the other side of the air duct plate extends outwards to form a lap joint flange, and the passenger car inner side framework is fixedly connected with a plurality of supporting plates at intervals. The connecting piece is provided with a connecting wall which is in contact with the lower end faces of the supporting plates at the same time, each supporting plate is provided with a first through hole, the connecting wall is provided with a plurality of second through holes, each second through hole corresponds to one first through hole, the connecting piece is further provided with a supporting shoulder below one side of the connecting wall, and the lap joint flange abuts against the supporting shoulder. Bolts penetrate through the corresponding second through holes and the first through holes to be screwed with nuts so that the connecting walls of the connecting pieces can be fixedly connected with the supporting plates together. The air duct plate is convenient to mount and dismount, the air duct is convenient to maintain, and the safety in use can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bus manufacturing, in particular to a connection structure between a bus air duct plate and a bus frame. Background Art

[0002] The bus air duct is a structure that must be configured in existing buses. The bus air duct is used to transport hot and cold air into the car to adjust the temperature inside the car.

[0003] The connection between the conventional bus air duct plate and the bus side frame is achieved by on-site drilling, and then mutually locking and fixing with self-tapping screws. For example, on July 10, 2013, a Chinese utility model patent with the patent number ZL201220584902.0 and the name “A Bus Air Duct” was disclosed, which includes a roof frame, a bus interior roof panel arranged on the inner side of the roof frame, a side eave frame connected to the roof frame, and a suspension beam fixedly connected to the side eave frame. It also includes an air duct assembly, which is obliquely placed between the roof frame and the side eave frame, and is respectively connected to the roof frame and the side eave frame; the air duct assembly includes an upper air duct panel, an advertising light box assembly connected to the upper air duct panel, a middle air duct panel connected to the advertising light box, and a lower air duct panel connected to the middle air duct panel, and the other end of the lower air duct panel is connected to the side eave frame. From the attached manual, Figure 1-2 It can be clearly seen that the lower base plate 10 of the air duct is fixed to the side eaves frame 16 of the bus using a drill and self-tapping screws. Although this connection method is relatively simple, it still has the following problems: First, during the drilling process, iron filings will fall into the air duct as the drill bit rotates, causing iron filings to accumulate inside the air duct. At this time, the air duct is fixed, and tools cannot effectively remove the iron filings and other impurities inside. When the air duct transports hot or cold air, the iron filings will be blown out of the air outlet with the air flow, posing a safety hazard. Second, it is difficult to disassemble the air duct plate. When reinstalling, the self-tapping screws often do not align with the original screw holes, making maintenance inconvenient. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a connection structure between a bus air duct plate and a bus frame, wherein the air duct plate is easy to install and disassemble, facilitates air duct maintenance, and can also improve safety during use.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is: a connection structure between a bus air duct plate and a bus frame, comprising an air duct plate, an inner side frame of the bus and a connecting piece, one side of the air duct plate is rotatably connected to the top support member inside the bus through a hinge, and an overlapping flange extends outward from the upper end of the other side of the air duct plate, and a plurality of support plates are fixedly connected to the inner side frame of the bus at intervals, and the connecting piece is provided with a connecting wall that contacts the lower end surfaces of the plurality of support plates at the same time, each support plate is provided with a first through hole, and a plurality of second through holes are provided on the connecting wall, and each second through hole corresponds to a first through hole, and the connecting piece is further provided with a supporting shoulder under one side of the connecting wall, and the overlapping flange rests on the supporting shoulder, and bolts pass through the corresponding second through holes and the first through holes and are tightened with nuts to fix the connecting wall of the connecting piece to the plurality of support plates together.

[0006] A further improvement is that the connector has an opening below the connecting wall, a decorative piece is clipped onto the opening, and the decorative piece has an air outlet. A first vent is provided in the portion of the connecting wall that does not contact the support plate, connecting the air duct and the air outlet. This allows hot and cold air to be delivered to the vehicle compartment through the opening of the connector, effectively regulating the vehicle compartment temperature. Furthermore, the decorative piece makes the connecting bolts invisible, resulting in a more aesthetically pleasing appearance.

[0007] Preferably, the cross section of the connecting piece is a convex shape with an open lower end, and a clamping groove is provided on the inner side of both side walls of the lower portion of the connecting piece. Deformable clamping arms are provided on both sides of the decorative piece, and each clamping arm is provided with a clamping protrusion, and the clamping protrusion on each clamping arm cooperates with a clamping groove on the connecting piece, thereby facilitating the clamping connection between the decorative piece and the connecting piece.

[0008] It is further preferred that the decorative part includes a top and two side parts connecting the two sides of the top, the lower ends of the two side parts extend two limiting parts in two opposite directions respectively, the two clamping arms are respectively connected to the two limiting parts, the air outlet is arranged on the top, and the lower end surface of the top also extends a plurality of ribs downward at intervals.

[0009] A further improvement is that the second through hole is an elongated through hole, and the first through hole is a circular through hole, with an inner diameter of Ø1 and a bolt diameter of Ø2, where Ø1 ≥ 1.2 × Ø2. This allows the bolt to be displaced in multiple directions, facilitating installation and allowing the lap flange to rest better on the support shoulder, eliminating unnecessary stress.

[0010] In a further improvement, a cover is connected to the upper end surface of the support plate around the first through hole, and the nut is movable in the space between the cover and the upper end surface of the support plate, and the cover restricts the nut from separating from the support plate. In this way, the nut can be displaced within a certain range while ensuring that the bolt and the nut can be engaged.

[0011] Preferably, the cover includes an upper plate with four connecting plates extending downward from the edges of the upper plate. The lower end of each connecting plate is fixedly connected to the upper end surface of the support plate. A clearance hole is provided in the middle of the upper plate to allow the bolt to extend through the clearance hole. A gap is formed between two adjacent connecting plates to facilitate the displacement of the nut.

[0012] As another solution, the first through hole is a pre-processed threaded hole. After removing the nut, the bolt passes through the corresponding second through hole and is directly tightened with the first through hole to fix the connecting wall of the connecting piece and the multiple support plates together.

[0013] Preferably, the air duct plate is composed of a profile and a bent plate, the profile is connected to the hinge, the profile and the bent plate are fixedly connected by riveting, and the overlapping flange is arranged on the bent plate.

[0014] A further improvement is that after the air duct plate is installed, a ventilation gap is left between the side of the air duct plate near the middle of the car and the top decorative panel inside the bus. Multiple second ventilation holes are provided on the top support member inside the bus, connecting the air duct with the ventilation gap. This allows the hot and cold air in the air duct to be delivered more directly to the middle of the car, achieving a more uniform temperature throughout the car.

[0015] In the present invention, a plurality of support plates are fixedly connected to the inner side frame of the bus at intervals, and the connecting member is provided with a connecting wall that contacts the lower end surfaces of the plurality of support plates at the same time. Each support plate is provided with a first through hole, and the connecting wall is provided with a plurality of second through holes, each second through hole corresponding to a first through hole. The connecting member is also provided with a supporting shoulder on the lower side of the connecting wall, and the overlapping flange rests on the supporting shoulder. Then, bolts are passed through the corresponding second through holes and the first through holes and tightened with nuts to fix the connecting wall of the connecting member to the plurality of support plates. In this way, during the entire installation process of the air duct plate, there is no need for drilling and the use of self-tapping screws, which simplifies the installation process, facilitates assembly, and does not generate iron filings. When inspection and maintenance are required, the bolts are removed and the connecting member is removed, and the air duct plate can be rotated to open the air duct, which is also relatively convenient for maintenance. Therefore, the air duct plate of the present invention is easy to install and disassemble, facilitates air duct maintenance, and can also improve safety during use.

[0016] In addition, the utility model can also improve the overall aesthetics of the air duct and achieve the effect of diffuse and constantly open air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a bottom-up stereogram of the present invention;

[0018] Figure 2 yes Figure 1 A magnified view of point A;

[0019] Figure 3 yes Figure 1 Enlarged view of point B;

[0020] Figure 4 It is a top perspective view of the present utility model;

[0021] Figure 5 yes Figure 4 Enlarged view of point C;

[0022] Figure 6 yes Figure 4 Enlarged view of point D;

[0023] Figure 7 It is a three-dimensional schematic diagram of a connecting piece and a plurality of support plates connected to each other through bolts and nuts;

[0024] Figure 8 It is a three-dimensional image of the decorative part. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0026] Figures 1 to 8 As shown, a connection structure between a bus air duct plate and a bus frame includes an air duct plate 1, an inner side frame 2 of the bus, and a plurality of interconnected connecting parts 3. One side of the air duct plate 1 is rotatably connected to the top support part 5 in the bus through a hinge 4, and a lap flange 11 is extended outward from the upper end of the other side of the air duct plate 1. The inner side frame 2 of the bus is fixedly connected with a plurality of support plates 6 at intervals. The connecting part 3 is provided with a connecting wall 31 that is in contact with the lower end surfaces of the plurality of support plates 6 at the same time, each support plate 6 is provided with a first through hole 61, and the connecting wall 31 is provided with a plurality of second through holes 311, each second through hole 311 corresponds to a first through hole 61, and the connecting part 3 is further provided with a supporting shoulder 32 under one side of the connecting wall 31, and the lap flange 11 rests on the supporting shoulder 32, and the bolt 7 passes through the corresponding second through hole 311 and the first through hole 61 and is tightened with the nut 71 to fix the connecting wall 31 of the connecting part 3 to the plurality of support plates 6 together.

[0027] The connecting member 3 is provided with an opening 33 below the connecting wall 31, and a decorative member 8 is clamped on the opening 33. The decorative member 8 is provided with multiple air outlet holes 81. The connecting wall 31 is provided with multiple first ventilation holes 312 in the part that is not in contact with the support plate 6. The first ventilation holes 312 connect the air duct 10 and the air outlet holes 81.

[0028] The cross-section of the connecting member 3 is a convex shape with an open lower end. A card slot 34 is provided on the inner side of the two side walls of the lower part of the connecting member 3. A deformable card arm 82 is provided on both sides of the decorative member 8. Each card arm 82 is provided with a card protrusion 821. The card protrusion 821 on each card arm 82 cooperates with a card slot 34 on the connecting member 3.

[0029] Figure 8As further shown, the decorative member 8 includes a top 8a and two side portions 8b connected to both sides of the top 8a. The lower ends of the two side portions 8b extend two limit portions 8c in two opposite directions. The two clamping arms 82 are respectively connected to the two limit portions 8c. The air outlet 81 is provided on the top 8a. The lower end surface of the top 8a also extends downwardly with multiple ribs 8d. Figure 5 As shown, when the decorative member 8 is clamped to the connecting member 3 , the two limiting portions 8 c respectively abut against the lower ends of the two side walls of the lower portion of the connecting member 3 .

[0030] The second through hole 311 is an elongated through hole, and the first through hole 61 is a circular through hole. The inner diameter of the circular through hole is Φ1, and the diameter of the bolt 7 is Φ2, where Φ1≧1.2×Φ2.

[0031] The upper end surface of the support plate 6 is connected to a cover 9 around the first through hole 61 , and the nut 71 is movable in the space between the cover 9 and the upper end surface of the support plate 6 , and the cover 9 restricts the nut 71 from separating from the support plate 6 .

[0032] The cover 9 includes an upper plate 91 with four connecting plates 92 extending downward from its edges. The lower end of each connecting plate 92 is fixedly connected to the upper end surface of the support plate 6. A clearance hole 911 is provided in the middle of the upper plate 91 to allow the bolt 7 to extend through the clearance hole 911. A gap is formed between two adjacent connecting plates 92 to facilitate the displacement of the nut 71.

[0033] The air duct plate 1 is composed of a profile 12 and a bent plate 13 . The profile 12 is connected to the hinge 4 . The profile 12 and the bent plate 13 are fixedly connected by riveting. The overlapping flange 11 is provided on the bent plate 13 .

[0034] After the air duct plate 1 is installed, a ventilation gap 14 is left between the side of the air duct plate 1 near the middle of the vehicle compartment, specifically the side of the profile 12, and the decorative panel of the passenger compartment ceiling 8a. The support member 5 of the passenger compartment ceiling 8a is provided with a plurality of second ventilation holes 51, which connect the air duct 10 with the ventilation gap 14. This facilitates the direct delivery of hot and cold air in the air duct 10 to the middle of the vehicle compartment, thereby achieving a more uniform temperature throughout the vehicle compartment.

[0035] As a variation, if the displacement of the bolt 7 is not considered, the nut 71 can also be fixedly connected to the support plate 6 or a threaded hole can be directly opened on the support plate 6 to cooperate with the bolt 7 without the nut.

[0036] During installation of this embodiment, the air duct plate 1 is first connected to the hinge 4 via the profile 12. The air duct plate 1 is then rotated so that the overlapping flange 11 on the other side of the air duct plate 1 rests on the supporting shoulder 32 of the connector 3. Bolts 7 are then passed through the corresponding second through-holes 311 and first through-holes 61 and tightened with nuts 71 to securely connect the connecting wall 31 of the connector 3 to the multiple support plates 6. The decorative piece 8 is then snapped onto the opening 33 of the connector 3. This completes the installation process, which eliminates the need for drilling and self-tapping screws, generating no iron filings. This facilitates installation and improves the safety of the air duct 10.

[0037] If the air duct 10 needs to be maintained, the decorative piece 8 is pulled down, the bolt 7 is unscrewed, and the connecting piece 3 can be removed. At this time, the air duct plate 1 can be rotated in the opposite direction, which makes it easy to maintain the air duct 10 and has good repeatability when reinstalling.

[0038] Although the present invention has been specifically demonstrated and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes can be made to the form and details of the present invention without departing from the spirit and scope of the present invention as defined by the appended claims, and all of these changes are within the scope of protection of the present invention.

Claims

1. A connection structure between a bus air duct plate and a bus frame, comprising the air duct plate and a bus inner side frame, characterized in that: It also includes a connecting piece, one side of the air duct plate is rotatably connected to the top support piece in the bus through a hinge, and a lap flange extends outward from the upper end of the other side of the air duct plate. A plurality of support plates are fixedly connected to the side frame of the bus at intervals. The connecting piece is provided with a connecting wall that is in contact with the lower end surfaces of the plurality of support plates at the same time, each support plate is provided with a first through hole, and a plurality of second through holes are provided on the connecting wall, each second through hole corresponds to a first through hole, and the connecting piece is further provided with a supporting shoulder under one side of the connecting wall, the lap flange rests on the supporting shoulder, and bolts pass through the corresponding second through holes and the first through holes and are tightened with nuts to fix the connecting wall of the connecting piece to the plurality of support plates together.

2. The connection structure between a bus air duct plate and a bus frame according to claim 1, characterized in that: The connecting member is provided with an opening below the connecting wall, a decorative member is clamped on the opening, and the decorative member is provided with an air outlet. The connecting wall is provided with a first ventilation hole at a portion not in contact with the support plate, and the first ventilation hole connects the air duct and the air outlet.

3. The connection structure between the bus air duct plate and the bus frame according to claim 2, characterized in that: The cross-section of the connecting piece is a convex shape with an open lower end. There are card slots on the inner sides of the two side walls of the lower part of the connecting piece. There are deformable card arms on both sides of the decorative piece. Each card arm is provided with a card protrusion. The card protrusion on each card arm cooperates with a card slot on the connecting piece.

4. The connection structure between the bus air duct plate and the bus frame according to claim 3, characterized in that: The decorative component includes a top and two side portions connected to both sides of the top, and two limiting portions extend from the lower ends of the two side portions in two opposite directions respectively. The two clamping arms are respectively connected to the two limiting portions. The air outlet is arranged on the top, and the lower end surface of the top also extends a plurality of ribs downward at intervals.

5. The connection structure between the bus air duct plate and the bus frame according to claim 1, characterized in that: The second through hole is an elongated through hole, the first through hole is a circular through hole, the inner diameter of the circular through hole is Φ1, the diameter of the bolt is Φ2, and Φ1≧1.2×Φ2.

6. The connection structure between a bus air duct plate and a bus frame according to claim 1, characterized in that: The upper end surface of the support plate is connected to a cover body around the first through hole, and the nut is movable in the space between the cover body and the upper end surface of the support plate, and the cover body restricts the nut from being separated from the support plate.

7. The connection structure between the bus air duct plate and the bus frame according to claim 6, characterized in that: The cover body includes an upper plate, and four connecting plates extend downward from the edges of the upper plate. The lower end of each connecting plate is fixedly connected to the upper end surface of the support plate. A clearance hole is provided in the middle of the upper plate so that the bolt can extend from the clearance hole; a gap is formed between two adjacent connecting plates.

8. The connection structure between a bus air duct plate and a bus frame according to claim 1, characterized in that: The first through hole is a pre-processed threaded hole. After removing the nut, the bolt passes through the corresponding second through hole and is directly tightened with the first through hole to fix the connecting wall of the connecting piece and the multiple support plates together.

9. The connection structure between a bus air duct plate and a bus frame according to claim 1, characterized in that: The air duct plate is composed of a profile and a bent plate. The profile is connected to a hinge. The profile and the bent plate are fixedly connected by riveting. The overlapping flange is arranged on the bent plate.

10. The connection structure of a bus air duct plate and a bus frame according to any one of claims 1 to 9, characterized in that: After the air duct plate is installed, a ventilation gap is left between the air duct plate near the middle of the car and the top decorative panel inside the bus. A plurality of second ventilation holes are provided on the top support member inside the bus, and the second ventilation holes connect the air duct and the ventilation gap.

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