fender

Abstract

The application discloses a fender and relates to the technical field of automobiles, which comprises a fender body, a connecting support connected with an A column of a vehicle body is arranged on the fender body, and a lateral mounting bracket connected with a front bumper of the vehicle body is also arranged on the fender body. The connecting support on the fender body is connected with the A column of the vehicle body, and the lateral mounting bracket on the fender body is connected with the front bumper of the vehicle body, so that the structure which is not easy to demold on the fender body can be separately manufactured, and the fender is convenient and fast to manufacture and low in manufacturing cost.

Description

Technical Field

[0001] This invention relates to the field of automotive technology, and more particularly to fenders. Background Technology

[0002] The fender is the outer body panel that covers the wheels. It is named after the shape and position of this part on old cars, which resembles a bird's wing. The function of the fender is to prevent sand and mud kicked up by the wheels from splashing onto the bottom of the car body and causing the vehicle surface to get dirty during the car's operation.

[0003] For example, CN112078669A, published on December 15, 2020, discloses an automobile fender structure, including a fender body and a connecting plate. The fender body includes a first plate and a second plate that are connected to each other and arranged at an angle along the longitudinal direction. Both the first plate and the second plate extend laterally. The first plate and the second plate are adjacent to each other along a first side of the lateral direction and a second side of the lateral direction to form a connecting side. The transition between the connecting side and the first side is arc-shaped. The connecting plate includes a first side plate extending downward from the connecting side and a second side plate extending laterally outward from the end of the first side plate away from the connecting side. The second side plate is used to connect with the automobile bumper. The first side plate extends longitudinally in a curved shape adapted to the connecting side. However, due to the complex structure of the fender, the fender cannot be demolded normally during demolding. Summary of the Invention

[0004] The purpose of this invention is to provide a fender that is easy to manufacture and demold. This invention connects the fender to the A-pillar and front bumper via a connecting bracket and a side mounting bracket, thereby facilitating the separate manufacturing of the less easily demolded parts of the fender, thus simplifying the demolding process of the fender.

[0005] To achieve the above objectives, the technical solution adopted by the present invention to solve its technical problem is: a fender, including a fender body, wherein the fender body is provided with a connecting bracket connected to the A-pillar of the vehicle body, and the fender body is also provided with a side mounting bracket connected to the front bumper of the vehicle body.

[0006] The fender body is provided with a mounting plate, and the connecting bracket includes a base plate and a side plate. The base plate is bonded to the fender body, and the mounting plate is snapped into the side plate.

[0007] The mounting plate is provided with a plug plate, and the side plate is provided with an extension plate, which is engaged with the plug plate.

[0008] The insert plate has an L-shaped cross-section, the extension plate has a side block, the side block has a recessed groove, and one side of the side block has a slot that engages with the insert plate. The slot and the recessed groove are connected.

[0009] The end of the insert plate is provided with a slot, and a connecting spring is provided in the slot. The spring has a raised part.

[0010] A first inclined plate is provided at the connection between the base plate and the side plate, and a reinforcing rib is provided on the first inclined plate; a vertical plate is provided between the first inclined plate and the base plate, and a bent edge is provided on the mounting plate to abut against the vertical plate. A limiting strip is provided on the bent edge, and an inner groove for accommodating the limiting strip is provided on the vertical plate.

[0011] The base plate, side plate, and extension plate are provided with a first adhesive groove, and the first adhesive groove contains adhesive.

[0012] The mounting plate and the side plate are flush. Both the mounting plate and the side plate are provided with an inner groove. The inner groove is provided with a through hole, and positioning strips are provided on both sides of the through hole.

[0013] The fender body is provided with a mounting protrusion, and the mounting protrusion is provided with a mounting seat for mounting wheel arches. The connection between the mounting protrusion and the mounting seat is provided with a recessed mounting groove. The mounting groove is provided with a snap-fit ​​groove. The mounting seat is also provided with a positioning groove. The positioning groove is spaced between the snap-fit ​​grooves. The mounting groove is also provided with a positioning rib, which is provided on both sides of the positioning groove.

[0014] The mounting base is provided with a clearance hole and a positioning through hole. The mounting base is also provided with a positioning transverse groove, a positioning groove, and a positioning protrusion.

[0015] One side of the side mounting bracket is snapped into the fender body. The fender body is provided with a first fixing seat and a second fixing seat. The first fixing seat is connected to the side mounting bracket by a first bolt, and the second fixing seat is connected to the side mounting bracket by a second bolt. The side mounting bracket is glued to the fender body, and the fender body has a second adhesive groove.

[0016] The fender body is provided with a flange, which abuts against the side mounting bracket. The flange is provided with a buckle groove, the side mounting bracket is provided with a buckle that abuts against the buckle groove, and the side mounting bracket is provided with an abutting protrusion that abuts against the flange.

[0017] The first fixed base is provided with a positioning column and a connecting column, and the side mounting bracket is provided with a first mounting platform. The first mounting platform is snapped into the positioning column, and the connecting column is connected to the first mounting platform by a first bolt.

[0018] The second fixed seat is provided with a snap-fit ​​spring piece, and the side mounting bracket is provided with a second mounting platform that snaps into the snap-fit ​​spring piece. The second bolt passes through the second fixed seat and the second mounting platform, and the second bolt is threadedly engaged with the snap-fit ​​spring piece.

[0019] The side mounting bracket is provided with a mounting protrusion, the mounting protrusion is provided with a fixing spring, the side mounting bracket is provided with a positioning protrusion, and both the mounting protrusion and the positioning protrusion are provided with clearance cavities at their side ends.

[0020] The side mounting bracket is provided with an extension frame, and the extension frame is provided with a first mounting through hole.

[0021] The fender body is provided with a body connecting plate that connects to the vehicle body. The body connecting plate is provided with a second mounting through hole that mates with bolts, and the body connecting plate is provided with a clearance groove.

[0022] The beneficial effects of this invention are:

[0023] The fender body is connected to the A-pillar of the vehicle body via a connecting bracket on the fender body, and to the front bumper of the car via a side mounting bracket on the fender body. This makes it easier to manufacture the fender body separately, which is not easy to demold, thus making the fender manufacturing convenient, quick and easy, and low in manufacturing cost.

[0024] The connecting bracket engages with the insert plate of the mounting plate on the fender body through the slot in the side block on the extension plate, thereby achieving a stable connection between the connecting bracket and the mounting plate of the fender body after the bottom plate of the connecting bracket is glued to the fender body. Furthermore, the first inclined plate of the connecting bracket is provided with a reinforcing rib plate, which facilitates the increase of the overall strength of the connecting bracket.

[0025] The side mounting bracket is initially positioned by engaging with the buckle and the groove on the flange of the fender body, which facilitates the connection of the first bolt, the second bolt, the first fixing seat, and the second fixing seat. After the side mounting bracket is glued, a stable connection is achieved, preventing the side mounting bracket from falling off after connection. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the fender of the present invention.

[0027] Figure 2 for Figure 1 Another perspective structural diagram.

[0028] Figure 3 for Figure 2 A partial structural diagram.

[0029] Figure 4 for Figure 1 A schematic diagram of the fender body structure.

[0030] Figure 5 for Figure 1 A schematic diagram of the connecting bracket structure.

[0031] Figure 6 for Figure 5 Another perspective structural diagram.

[0032] Figure 7 for Figure 5 Another perspective structural diagram.

[0033] Figure 8 for Figure 1 A cross-sectional view showing the connection between the connecting bracket and the fender body.

[0034] Figure 9 for Figure 4 A magnified view of a portion of the fender body.

[0035] Figure 10 for Figure 9 A magnified view of a portion of the image.

[0036] Figure 11 for Figure 1 A magnified view of a portion of the image.

[0037] Figure 12 for Figure 1 A partial enlarged view of the connection between the fender body and the side mounting bracket.

[0038] Figure 13 for Figure 12 A magnified view of a portion of the image.

[0039] Figure 14 for Figure 13 A schematic diagram from another perspective.

[0040] Figure 15 for Figure 14 A schematic diagram from another perspective.

[0041] Figure 16 for Figure 12 A schematic diagram from another perspective.

[0042] Figure 17 for Figure 1 Schematic diagram of the side mounting bracket

[0043] Figure 18 for Figure 17 A magnified view of a portion of the image.

[0044] In the attached image:

[0045] 1-Fender body, 101-Mounting plate, 1011-Insert plate, 1012-Gap, 1013-Connecting spring, 1014-Warped, 102-Bent edge, 103-Limiting strip

[0046] 2-Connecting bracket, 201-Base plate, 202-Side plate, 203-Extension plate, 204-Side block, 205-Slot, 206-Slot, 207-First inclined plate, 208-Vertical plate, 209-Inner groove, 210-Reinforcing rib plate,

[0047] 3-Side mounting bracket, 4-First adhesive groove, 5-Inner groove, 6-Through hole, 7-Positioning strip, 8-Mounting protrusion, 9-Mounting base, 10-Mounting groove, 11-Snap-fit ​​groove, 12-Positioning groove, 13-Positioning rib, 14-Allowing hole, 15-Positioning through hole, 16-Positioning transverse groove, 17-Positioning recess, 18-Positioning protrusion, 19-First fixing base, 20-Second fixing base, 21-First bolt, 22-Second bolt, 2 3-Second adhesive groove, 24-Flanged edge, 25-Snap groove, 26-Snap fastener, 27-Abutting protrusion, 28-Positioning post, 29-Connecting post, 30-First mounting platform, 31-Snap-fit ​​spring, 32-Second mounting platform, 33-Mounting protrusion, 34-Fixing spring, 35-Positioning protrusion, 36-Allowing cavity, 37-Extension bracket, 38-First mounting through hole, 39-Body connecting plate, 40-Second mounting through hole, 41-Allowing groove. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0049] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0050] like Figure 1-18 As shown, the fender includes a fender body 1, a connecting bracket 2 that connects to the A-pillar of the vehicle body, and a side mounting bracket 3 that connects to the front bumper of the vehicle body. The connecting bracket 2 and the side mounting bracket 3 are respectively located on both sides of the fender body 1. Specifically, the fender body 1 has an inner side and an outer side, and the connecting bracket 2 and the side mounting bracket 3 are both located on the inner side of the fender body 1.

[0051] In use, the fender body 1 is connected to the A-pillar of the vehicle body through the connecting bracket 2, and the fender body 1 is connected to the front bumper of the vehicle body through the side mounting bracket 3. The part of the fender body 1 that is not easy to demold is split into the connecting bracket 2 and the side mounting bracket 3, which facilitates the demolding of the entire fender. The fender is easy and quick to manufacture and has low manufacturing cost.

[0052] Specifically, refer to Figure 1-10The fender body 1 is provided with a mounting plate 101. The connecting bracket 2 includes a base plate 201 and a side plate 202. The base plate 201 is bonded to the fender body 1, and the mounting plate 101 is snapped into the side plate 202. The bonding and snapping achieve convenient installation of the connecting bracket on the fender body 1. Therefore, when installing the connecting bracket 2, glue is first applied to the base plate 201 and the fender body 1, and then the side plate 202 is snapped into the mounting plate 101, thereby ensuring a stable connection between the fender body 1 and the connecting bracket 2.

[0053] Specifically, the mounting plate 101 is provided with a plug plate 1011, and the side plate 202 is provided with an extension plate 203. The extension plate 203 is snapped into the plug plate 101. The mounting plate 101 and the side plate 202 are connected by the snapping of the plug plate 1011 and the extension plate 203 on the side plate 202, thereby realizing the snapping of the connecting bracket 2 on the fender body 1.

[0054] The insert plate 1101 has an L-shaped cross section. The extension plate 203 is provided with a side block 204. The side block 204 is provided with a recess 205. One side of the side block 204 is provided with a slot 206 that engages with the insert plate 1011. The slot 206 and the recess 205 are connected. When the connecting bracket 2 is installed, the insert plate 1011 on the extension plate 203 and the mounting plate 101 is inserted into the recess 205 of the side block 204, thereby moving the insert plate 1011 to engage with the slot 206, thus realizing the engagement of the insert plate 1011 with the extension plate 203.

[0055] The end of the insert plate 1011 is provided with a slot 1012, and a connecting spring 1013 is provided in the slot 1012. The spring 1013 is provided with a protrusion 1014. When the insert plate 1011 moves into the recess 205, the protrusion 1014 presses against the wall of the recess 205, causing the spring 1013 to deform until the protrusion 1014 at the end of the insert plate 1011 passes through the slot 206, thereby resetting the spring 1013. Then, under the action of the protrusion 1014, the insert plate 1011 cannot be moved out of the slot 1011, thereby realizing the snap-fit ​​between the mounting plate 101 and the side plate 202.

[0056] Reference Figure 8 A first inclined plate 207 is provided at the connection between the base plate 201 and the side plate 202. A reinforcing rib 210 is provided on the first inclined plate 207 to increase the strength of the entire connecting bracket 2. A vertical plate 208 is provided between the first inclined plate 207 and the base plate 201. A bent edge 102 is provided on the mounting plate 101 to abut against the vertical plate 208. A limiting strip 103 is provided on the bent edge 102. An inner groove 209 is provided on the vertical plate 208 to accommodate the limiting strip 103. Through the cooperation of the limiting groove 103 on the bent edge 102 and the inner groove 209, the connecting bracket 2 is stably installed on the fender body 1.

[0057] The base plate 201, side plate 202, and extension plate 203 are provided with a first adhesive groove 4, which contains adhesive. The adhesive in the first adhesive groove 4 enables a stable connection between the connecting bracket 2 and the fender body 1. The fender body 1 is also provided with a first adhesive groove 4. The positions of the first adhesive groove 4 on the fender body 1 and the adhesive groove 4 on the base plate 201 are matched to ensure a stable connection between the base plate 201 and the fender body 1.

[0058] The mounting plate 101 and the side plate 202 are flush, thus ensuring a stable connection between the connecting bracket 2 and the mounting plate 101 after installation, thereby increasing the stability of the connecting bracket 2 after connection. Both the mounting plate 101 and the side plate 202 are provided with an inner groove 5, in which a through hole 6 is provided, and positioning strips 7 are provided on both sides of the through hole 6. The through hole 6 facilitates the passage of bolts, thereby facilitating the connection between the mounting plate 101 and the A-pillar of the vehicle body. The positioning strips 7 facilitate the positioning of the mounting plate 101 during installation. The inner groove 5 facilitates the storage of the bolt head. There are two positioning strips 7, symmetrically arranged on both sides of the through hole 6 of the inner groove 5, to reinforce the inner groove 5.

[0059] Reference Figure 1-11 The fender body 1 is provided with a mounting protrusion 8, and a mounting seat 9 for mounting wheel arches is provided on the mounting protrusion 8. A recessed mounting groove 10 is provided at the connection between the mounting protrusion 8 and the mounting seat 9. A snap-fit ​​groove 11 is provided in the mounting groove 10. The mounting seat 9 is also provided with a positioning groove 12, which is spaced between the snap-fit ​​grooves 11. A positioning rib 13 is also provided in the mounting groove 10. The positioning rib 13 is provided on both sides of the positioning groove 12. The snap-fit ​​groove 11 facilitates the installation of wheel arches. The positioning groove 12 facilitates the positioning work during the installation of wheel arches. The positioning rib 13 facilitates the further positioning work when the positioning groove 12 is connected to the positioning structure on the wheel arch. The positioning groove 12 and the positioning structure on the wheel arch are mutually adapted to achieve precise installation of the wheel arches. The positioning rib 13 and the positioning groove structure on the wheel arch are adapted to further ensure precise installation of the wheel arches.

[0060] The mounting base 9 is provided with a clearance hole 14 and a positioning through hole 15. The mounting base 9 is also provided with a positioning transverse groove 16, a positioning groove 17, and a positioning protrusion 18. The clearance hole 14 is provided to allow the reinforcing structure on the wheel arch to make clearance. The positioning through hole 15 is provided to cooperate with the positioning structure on the wheel arch to achieve the positioning work during wheel arch installation. The positioning transverse groove 16 and the positioning groove 17 facilitate the precise fit of the wheel arch on the mounting base 9.

[0061] Reference Figure 12-18The side mounting bracket 3 is snapped into the fender body 1 on one side. The fender body 1 is provided with a first fixing seat 19 and a second fixing seat 20. The first fixing seat 19 is connected to the side mounting bracket 3 by a first bolt 21, and the second fixing seat 20 is connected to the side mounting bracket 3 by a second bolt 22. The side mounting bracket 3 is glued to the fender body 1. The fender body 1 has a second adhesive groove 23. Through the cooperation of the first bolt 21 and the second bolt 22, the side mounting bracket 3 is stably installed. The second adhesive groove 23 is provided with adhesive to ensure the adhesion between the side mounting bracket 3 and the fender body 1. Specifically, the axes of the first bolt 21 and the second bolt 22 are perpendicular to each other to achieve the stable installation of the side mounting bracket 3.

[0062] The fender body 1 is provided with a flange 24, which abuts against the side mounting bracket 3. The flange 24 is provided with a snap groove 25, and the side mounting bracket 3 is provided with a buckle 26 that abuts against the snap groove 25. After the flange 24 is snapped against the side of the side mounting bracket 23, the side mounting bracket 3 is stably connected by the cooperation of the buckle 26 and the snap groove 25. The buckle 26 and the snap groove 25 can also achieve the initial positioning of the side mounting bracket 3 when connected. After the flange 24 is snapped against the side mounting bracket 3, the first bolt 21 and the second bolt 22 are connected to achieve the precise connection of the side mounting bracket 3. The side mounting bracket 3 is provided with an abutting protrusion 27 that abuts against the flange 24. The setting of the abutting protrusion 27 facilitates the stable connection of the side mounting bracket 3.

[0063] Reference Figure 13-18 The first fixed base 19 is provided with a positioning post 28 and a connecting post 29. The side mounting bracket 3 is provided with a first mounting platform 30. The first mounting platform 30 is snapped into the positioning post 28. The connecting post 29 is connected to the first mounting platform 30 by a first bolt 21. The positioning post 28 is designed to cooperate with the positioning pin hole of the first mounting platform 30, so that the first fixed base 19 and the first mounting platform 30 can be connected by the first bolt 21 after positioning. The connecting post 29 is provided with a threaded hole, so as to cooperate with the first bolt 21.

[0064] The second fixed base 20 is provided with a snap-fit ​​spring 31, and the side mounting bracket 3 is provided with a second mounting platform 32 that snaps into the snap-fit ​​spring 31. The second bolt 22 passes through the second fixed base 20 and the second mounting platform 32. The second bolt 22 is threadedly engaged with the snap-fit ​​spring 31. The second mounting platform 32 snaps into the snap-fit ​​spring 31, and then the second bolt 22 is connected to the second mounting platform 32, thereby ensuring a stable connection between the second fixed base 20 and the side mounting bracket 3.

[0065] The side mounting bracket 3 is provided with a mounting boss 33, and the mounting boss 33 is provided with a fixing spring 34. The fixing spring 34 is used to increase the connection stability of the mounting boss 33 after the bolt passes through, thereby facilitating the connection between the mounting boss 33 and the front bumper of the vehicle. The side mounting bracket 3 is provided with a positioning boss 35. The positioning boss 35 is provided to facilitate the positioning of the side mounting bracket 3 during connection. Both the mounting boss 33 and the positioning boss 35 are provided with clearance cavities 36 on their side ends. The clearance cavities 36 are provided to facilitate the connection between the side mounting bracket 3 and the front bumper of the vehicle.

[0066] The side mounting bracket 3 is provided with an extension bracket 37, and the extension bracket 37 is provided with a first mounting through hole 38. The first mounting through hole 38 on the extension bracket 27 facilitates the connection between the side mounting bracket 3 and the front bumper of the vehicle.

[0067] The fender body 1 is provided with a body connecting plate 39 that is connected to the body. The body connecting plate 39 is provided with a second mounting through hole 40 that mates with bolts. The second mounting through hole 40 is provided to facilitate the bolts to pass through and connect to the body. The body connecting plate 39 is provided with a clearance groove 41. The clearance groove 41 is provided to facilitate the body connecting plate 39 to avoid protruding structures on the body.

[0068] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fender, characterized in that, Includes a fender body (1), the fender body (1) is provided with a connecting bracket (2) connected to the A-pillar of the vehicle body, and the fender body (1) is also provided with a side mounting bracket (3) connected to the front bumper of the vehicle body. The fender body (1) is provided with an mounting plate (101), and the connecting bracket (2) includes a base plate (201) and a side plate (202). The base plate (201) is bonded to the fender body (1), and the mounting plate (101) is snapped into the side plate (202). The mounting plate (101) is provided with a plug plate (1011), and the side plate (202) is provided with an extension plate (203), the extension plate (203) being snapped into the plug plate (1011); The insert plate (1011) has an L-shaped cross section. The extension plate (203) is provided with a side block (204). The side block (204) is provided with a recess (205). One side of the side block (204) is provided with a slot (206) that engages with the insert plate (1011). The slot (206) and the recess (205) are connected. The end of the insert plate (1011) is provided with a slot (1012), a connecting spring piece (1013) is provided in the slot (1012), and a protrusion (1014) is provided on the connecting spring piece (1013). A first inclined plate (207) is provided at the connection between the base plate (201) and the side plate (202), and a reinforcing rib plate (210) is provided on the first inclined plate (207); a vertical plate (208) is provided between the first inclined plate (207) and the base plate (201), and a bent edge (102) abutting against the vertical plate (208) is provided on the mounting plate (101), a limiting strip (103) is provided on the bent edge (102), and an inner groove (209) for accommodating the limiting strip (103) is provided on the vertical plate (208). The base plate (201), side plate (202), and extension plate (203) are provided with a first adhesive groove (4), and the first adhesive groove (4) is provided with adhesive. The mounting plate (101) and the side plate (202) are flush. Both the mounting plate (101) and the side plate (202) are provided with an inner groove (5). The inner groove (5) is provided with a through hole (6), and the through hole (6) is provided with positioning strips (7) on both sides. The side mounting bracket (3) is snapped into the fender body (1) on one side. The fender body (1) is provided with a first fixing seat (19) and a second fixing seat (20). The first fixing seat (19) is connected to the side mounting bracket (3) by a first bolt (21). The second fixing seat (20) is connected to the side mounting bracket (3) by a second bolt (22). The side mounting bracket (3) is glued to the fender body (1). The fender body (1) is provided with a second glue groove (23).

2. The fender according to claim 1, characterized in that, The fender body (1) is provided with a mounting protrusion (8), and the mounting protrusion (8) is provided with a mounting seat (9) for mounting wheel arches. The connection between the mounting protrusion (8) and the mounting seat (9) is provided with a recessed mounting groove (10). The mounting groove (10) is provided with a snap-fit ​​groove (11). The mounting seat (9) is also provided with a positioning groove (12). The positioning grooves (12) are spaced apart between the snap-fit ​​grooves (11). The mounting groove (10) is also provided with a positioning rib (13). The positioning ribs (13) are provided on both sides of the positioning groove (12).

3. The fender according to claim 2, characterized in that, The fender body (1) is provided with a flange (24), the flange (24) abuts against the side mounting bracket (3), the flange (24) is provided with a buckle groove (25), the side mounting bracket (3) is provided with a buckle (26) that engages with the buckle groove (25), and the side mounting bracket (3) is provided with an abutting protrusion (27) that abuts against the flange (24).

4. The fender according to claim 3, characterized in that, The first fixed base (19) is provided with a positioning column (28) and a connecting column (29). The side mounting bracket (3) is provided with a first mounting platform (30). The first mounting platform (30) is snapped into the positioning column (28). The connecting column (29) is connected to the first mounting platform (30) by a first bolt (21).

5. The fender according to claim 1, characterized in that, The second fixed seat (20) is provided with a snap-fit ​​spring piece (31), and the side mounting bracket (3) is provided with a second mounting platform (32) that snaps into the snap-fit ​​spring piece (31). The second bolt (22) passes through the second fixed seat (20) and the second mounting platform (32), and the second bolt (22) is threadedly engaged with the snap-fit ​​spring piece (31).

6. The fender according to any one of claims 1-5, characterized in that, The side mounting bracket (3) is provided with a mounting boss (33), the mounting boss (33) is provided with a fixing spring (34), the side mounting bracket (3) is provided with a positioning boss (35), and the side ends of the mounting boss (33) and the positioning boss (35) are provided with clearance cavities (36). The side mounting bracket (3) is provided with an extension bracket (37), and the extension bracket (37) is provided with a first mounting through hole (38).

Images