A high-strength automobile luggage rack

Abstract

The present invention relates to the field of automobile luggage racks, and in particular to a high-strength automobile luggage rack, comprising a cross bar, a connecting piece, a fixing seat, and a luggage rack assembly unit; a conventional luggage rack generally comprises two parts: a cross bar and a fixing seat; the cross bar is generally used to support goods or containers for holding goods, and the fixing seat is plugged into both ends of the cross bar, and then the fixing seat is fixedly mounted on the roof with bolts; a connecting piece for connecting with the fixing seat is arranged in the cross bar of the present invention, and the plug-in portion of the connecting piece and the fixing seat is arranged in an arc shape, and the connecting piece and the cross bar, and the connecting piece and the fixing seat are fixed by bolts, which can increase the supporting strength of the cross bar; and the vertical section of the connecting piece can play a certain supporting role when supporting heavy objects, so as to prevent the cross bar from deforming; the present invention also provides an assembling method of the luggage rack, and after the luggage racks to be assembled are placed in designated positions respectively, the luggage rack can be assembled by simply rotating the pressure rod downward, which is convenient and quick.

Description

Technical Field

[0001] The invention relates to the field of automobile luggage racks, and in particular to a high-strength automobile luggage rack. Background Art

[0002] A car luggage rack is a device mounted on the roof or rear of a car to increase the car's carrying capacity; it provides additional storage space for carrying large, bulky or items that do not fit inside the car, such as luggage, bicycles, skis, fishing gear, etc. For strength and safety reasons, car luggage racks are usually made of metal or synthetic materials and have a strong and durable structure.

[0003] Conventional luggage racks generally include two parts: a crossbar and a fixing seat; the crossbar is generally used to support cargo or a container for cargo, and the fixing seat is plugged into both ends of the crossbar and is generally fixed to the roof with bolts.

[0004] In daily use, luggage racks are generally used to carry items that are larger in size or mass, and the main load-bearing body of the luggage rack when carrying items is the cross bar, so for safety reasons, the cross bar must have sufficient strength; the cross bars currently on the market are all mounted on the roof through fixed seats, and the length of the cross bars is generally longer. When driving on bumpy roads, they may be deformed due to insufficient strength, posing a safety hazard; at the same time, after a certain period of use, the bolts used to connect the cross bar and the fixed seat are also at risk of falling off, which also poses a certain safety hazard. Summary of the invention

[0005] In order to solve the above problems, the present invention adopts the following technical scheme: a high-strength automobile luggage rack, which includes a cross bar, a connecting piece, and a fixing seat; the upper end surface of the cross bar is symmetrically provided with two circular holes for installing countersunk bolts, and the lower end surface of the cross bar is provided with a limited sliding groove along its length direction, and two connecting pieces are symmetrically slidably installed in the limited sliding groove; the cross bar is connected to the fixing seats at both ends through two connecting pieces; the connecting piece includes a horizontal section, a vertical section and an arc section, the horizontal section of the connecting piece is slidably installed in the limiting sliding groove, and the upper end surface of the horizontal section is provided with a connecting piece that is symmetrically slidable with the cross bar A threaded hole corresponds to the upper circular hole, and the lower end face of the horizontal section is fixedly connected with the vertical section. The horizontal section is also fixedly connected with an arc section on the end face close to the circular hole, and the upper end face of the arc section is also provided with a threaded hole; a rubber pad is also sleeved on the bottom of the connecting piece to prevent damage to the roof due to too small a contact area; a socket is provided inside the fixing seat to cooperate with the arc section of the connecting piece, and a through hole corresponding to the threaded hole on the arc section of the connecting piece is provided on the upper end face of the fixing seat, and a mounting hole for mounting on the roof of the car is also provided on the lower end face of the arc section; the luggage rack is assembled through a luggage rack assembly unit.

[0006] The luggage rack assembly unit includes an assembly table, a linkage assembly, a connecting rod, a pressing assembly, a gear set, a two-way stretching assembly, a receiving assembly, a No. 1 hinged plate assembly, and a plug-in assembly; the assembly table includes a U-shaped plate and a vertical plate, and a strip placement groove is provided in the middle of the horizontal section of the U-shaped plate along its length direction; the upper end surface of the horizontal section of the U-shaped plate is fixedly connected to the vertical plate at a position close to the rear, and a T-shaped slide groove in the middle of the vertical plate is provided in the up and down directions; the horizontal section of the U-shaped plate is symmetrically provided with two notches at the positions located on the left and right sides of the T-shaped slide groove; the T-shaped slide groove and the notch have a common A linkage component is slidably installed; a pressing component is fixedly arranged on the upper end surface of the horizontal section of the U-shaped plate between the T-shaped slide groove and the strip placement groove; the pressing component and the linkage component are hingedly connected by a connecting rod; a two-way stretching component is arranged on the lower end surface of the horizontal section of the U-shaped plate, and the two-way stretching component is connected to the linkage component through a gear set; a receiving component is arranged on the left and right sides of the horizontal section of the U-shaped plate; the receiving component is connected to the plug-in component through a No. 1 hinged plate group; the No. 1 hinged plate group is a scissor-fork structure composed of two No. 1 hinged plates hingedly connected in the middle part.

[0007] In one possible implementation, the linkage assembly includes a convex slide, a connecting plate, a No. 1 tooth plate, a return spring, and a linkage gear; the convex slide is slidably installed in the T-shaped slide groove, a connecting plate is fixedly connected to the front end face of the convex slide, and two No. 1 tooth plates are symmetrically fixedly connected to the rear end face of the connecting plate; the No. 1 tooth plates are slidably installed up and down in the grooves on the U-shaped plate; the lower end of the No. 1 tooth plate is meshed and connected to the gear set through a linkage gear; a return spring is also fixedly connected to the bottom of the convex slide; the return spring fixes the other end of the convex slide to the U-shaped plate in the initial state.

[0008] In one possible implementation, the pressing assembly includes a mounting seat and a pressure rod; the mounting seat is composed of a rectangular block and two mounting plates that are symmetrically fixedly connected to the upper end surface of the rectangular block; the mounting seat is arranged between the T-shaped slide groove and the strip placement groove, and the mounting seat is fixedly connected to the upper end surface of the horizontal section of the U-shaped plate; a pressure rod is rotatably installed between the two mounting plates, and the upper end surface of the pressure rod is hinged with a connecting rod through two ear plates; the other end of the connecting rod is hingedly connected to the connecting plate.

[0009] In one possible implementation, the biaxial stretching assembly includes a No. 2 tooth plate and a push rod; the No. 2 tooth plate is composed of two pieces at the front and rear, and two groups are symmetrically arranged left and right; the two No. 2 tooth plates in each group are fixedly connected by a push rod; the two groups of No. 2 tooth plates are both slidably installed in the slide rail on the lower end surface of the horizontal section of the U-shaped plate that is symmetrically arranged front and back in a fixed manner.

[0010] In one possible implementation, the number of the receiving components is two, and the two receiving components are symmetrically arranged on both sides of the U-shaped plate, and the receiving components include a support plate, a limit plate, an upper connecting seat, a lower connecting seat, a second hinge plate group, a bottom rail, and a return spring; the front and rear end surfaces of the support plate are fixedly connected to the limit plate, and the lower end surface of the support plate is provided with a T-shaped slide rail along its length direction, and two upper connecting seats are slidably arranged on the T-shaped slide rail; the two upper connecting seats are connected to the two lower connecting seats through the second hinge plate group; the second hinge plate group is a scissor structure formed by hinged middle parts of two second hinge plates; the two lower connecting seats are slidably sleeved on the bottom rail; the bottom rail is composed of two square plates arranged front and back and a guide rod fixedly connected between the square plates; the two square plates are fixedly connected to the bottoms of the two vertical sections of the U-shaped plate respectively; the two lower connecting seats are also connected to the plug-in assembly through the first hinge plate group.

[0011] In one possible implementation, the number of the plug-in components is two, and the two plug-in components are symmetrically arranged on both sides of the receiving component. The plug-in components include a cross rail, a bottom plate, a push-fit module, and a support module; the cross rail is composed of two long rods arranged front and back; the two long rods are respectively fixedly connected to the two square plates on the bottom rail; a push-fit module is arranged on the cross rail; a bottom plate is fixedly arranged on the cross rail below the push-fit module; a support module is fixedly arranged on the bottom plate at a position between the push-fit module and the first hinge plate.

[0012] In one possible implementation, the pushing-and-closing module includes a traction coupling, a U-shaped slide, a curved push block, and a trapezoidal push plate; the number of the traction couplings is two, and the two traction couplings are respectively slidably mounted on two long rods on the horizontal rail; the two traction couplings are fixedly connected to round rods on the end faces away from the No. 1 hinge plate group, and the other ends of the two round rods are commonly fixedly connected to the U-shaped slide; the two vertical sections of the U-shaped slide are respectively slidably connected to the two long rods on the horizontal rail; an curved push block is fixedly provided on the upper end face of the horizontal section of the U-shaped slide, and the curved surface on the curved push block has the same curvature as the curved surface on the outer side of the fixed seat; the horizontal section of the U-shaped slide is fixedly connected to a trapezoidal push plate on the end face close to the No. 1 hinge plate.

[0013] In one possible implementation, the support module includes a support, a fan-shaped plate, a support platform, a positioning column, and a limit strip; the number of the supports is two, and the two supports are symmetrically fixed on the bottom plate in the front and rear directions. The support platform is rotatably installed on the support through the fan-shaped plate, and the fan-shaped plate is fixedly connected to the limit strip at the bottom of the end surface close to the first hinge plate group; the support platform is composed of a rectangular support plate and an arc block located above the support and fixedly connected to the upper end surface of the rectangular support plate, and the arc surface of the arc block has the same arc as the inner arc surface of the fixed seat; a positioning column that cooperates with the mounting hole at the bottom of the fixed seat is also fixedly provided on the upper end surface of the support platform; a triangular slide groove that cooperates with the trapezoidal push plate is provided at the bottom of the support platform.

[0014] The beneficial effects of the present invention are: 1. A connecting piece for connecting to a fixing seat is arranged inside the cross bar of the present invention, the plug-in portion between the connecting piece and the fixing seat is arranged to be arc-shaped, and the connecting piece and the cross bar, as well as the connecting piece and the fixing seat are fixed by bolts to enhance the connection strength among the three; the vertical section of the connecting piece can play a certain supporting role when supporting heavy objects, to prevent deformation of the cross bar due to excessive weight of the consigned items.

[0015] 2. The present invention also provides an assembly method for the luggage rack. When the luggage rack is assembled using this method, it only needs to rotate the pressure rod downward to complete the connection between the connector and the fixing seat through the bidirectional stretching component and the plug-in component, which is convenient and quick. At the same time, when the luggage rack is assembled in this way, the relative positions of the circular holes on the crossbar, the threaded holes on the connector and the through holes on the fixing seat correspond more accurately, which is convenient for the subsequent installation of bolts and screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below with reference to the accompanying drawings and examples.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the high-strength automobile luggage rack of the present invention.

[0018] Figure 2 The present invention Figure 1 Top view of the .

[0019] Figure 3 The present invention Figure 2 Sectional view at AA.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of a high-strength automobile luggage rack and a luggage rack assembly unit of the present invention.

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the luggage rack assembly unit in the present invention.

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the assembly platform, connecting rod, pressing component, gear set and bidirectional stretching component in the present invention.

[0023] Figure 7 It is a partial cross-sectional view of the assembly platform, connecting rod, pressing assembly, gear set, and bidirectional stretching assembly in the present invention.

[0024] Figure 8 The present invention Figure 7 main view.

[0025] Fig. 9 It is a partial three-dimensional structural schematic diagram of the receiving component, the first hinge plate group and the plug-in component in the present invention.

[0026] Fig.10 The present invention Fig. 9 Top view of the .

[0027] Fig.11 The present invention Fig.10 Cross-sectional view at the middle BB.

[0028] In the figure: 1, luggage rack; 11, cross bar; 12, connecting piece; 13, fixing seat; 14, rubber pad; 2, luggage rack assembly unit; 21, assembly table; 22, linkage assembly; 221, convex sliding seat; 222, connecting plate; 223, No. 1 tooth plate; 224, return spring; 225, linkage gear; 23, connecting rod; 24, pressing assembly; 241, mounting seat; 242, pressing rod; 25, gear set; 26, two-way stretching assembly; 261, No. 2 tooth plate; 262, push rod; 27, receiving assembly; 271, support plate; 27 2. Limiting plate; 273. Upper connecting seat; 274. Lower connecting seat; 275. No. 2 hinged plate group; 276. Bottom rail; 277. Return spring; 28. No. 1 hinged plate group; 29. ​​Plug-in assembly; 291. Cross rail; 292. Bottom plate; 293. Push-in module; 2931. Traction connecting seat; 2932. U-shaped sliding seat; 2933. Arc push block; 2934. Trapezoidal push plate; 294. Support module; 2941. Support seat; 2942. Fan-shaped plate; 2943. Support table; 2944. Positioning column; 2945. Limiting strip. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

[0030] See also Figure 1 , Figure 2 , Figure 3 , Figure 4A high-strength luggage rack for automobiles, the luggage rack 1 comprising a cross bar 11, a connecting piece 12, a fixing seat 13, and a rubber pad 14; the upper end surface of the cross bar 11 is symmetrically provided with two round holes for installing countersunk bolts, the lower end surface of the cross bar 11 is provided with a limited slide groove along its length direction, and two connecting pieces 12 are symmetrically slidably installed in the limited slide groove; the cross bar 11 is connected to the fixing seats 13 at both ends through two connecting pieces 12; the connecting piece 12 comprises a horizontal section, a vertical section, and an arc section, the horizontal section of the connecting piece 12 is slidably installed in the limiting slide groove, and the upper end surface of the horizontal section is provided with a connecting piece slidably connected to the upper end surface of the cross bar 11 A threaded hole corresponding to the circular hole, a vertical section is fixedly connected to the lower end face of the horizontal section, and an arc section is also fixedly connected to the end face of the horizontal section close to the circular hole, and a threaded hole is also provided on the upper end face of the arc section; a rubber pad 14 is also sleeved on the bottom of the connecting piece 12 to prevent damage to the roof due to too small a contact area; a socket is provided inside the fixing seat 13 to cooperate with the arc section of the connecting piece 12, a through hole corresponding to the threaded hole on the arc section of the connecting piece 12 is provided on the upper end face of the fixing seat 13, and a mounting hole for mounting on the roof of a car is also provided on the lower end face of the arc section; the luggage rack 1 is assembled by the luggage rack assembly unit 2.

[0031] During specific operation, the luggage rack 1 is assembled through the luggage rack assembly unit 2, and then the fixing seat 13 of the luggage rack 1 is connected to the roof of the car through bolts and screws; when the luggage rack 1 is used to transport heavy objects, the vertical section on the connecting piece 12 will abut against the roof of the car to play a supporting role, thereby improving the supporting strength of the luggage rack 1.

[0032] See also Figure 4 , Figure 5 and Figure 7The luggage rack assembly unit 2 includes an assembly table 21, a linkage assembly 22, a connecting rod 23, a pressing assembly 24, a gear set 25, a biaxial stretching assembly 26, a receiving assembly 27, a first hinged plate assembly 28, and a plug-in assembly 29; the assembly table 21 includes a U-shaped plate and a vertical plate, and a strip placement groove is provided in the middle of the horizontal section of the U-shaped plate along its length direction; the upper end surface of the horizontal section of the U-shaped plate is fixedly connected with the vertical plate at a position close to the rear, and a T-shaped slide groove in the middle of the vertical plate is provided in the up and down directions; the horizontal section of the U-shaped plate has two notches symmetrically provided at the positions on the left and right sides of the T-shaped slide groove; the T-shaped slide groove and the notch are slidably arranged together A linkage component 22 is installed; a pressing component 24 is fixedly arranged on the upper end surface of the horizontal section of the U-shaped plate between the T-shaped slide groove and the strip placement groove; the pressing component 24 and the linkage component 22 are hingedly connected via a connecting rod 23; a bidirectional stretching component 26 is arranged on the lower end surface of the horizontal section of the U-shaped plate, and the bidirectional stretching component 26 is connected to the linkage component 22 via a gear set 25; a receiving component 27 is arranged on the left and right sides of the horizontal section of the U-shaped plate; the receiving component 27 is connected to the plug-in component 29 via a No. 1 hinge plate group 28; the No. 1 hinge plate group 28 is a scissor-fork structure composed of two No. 1 hinge plates hingedly connected in the middle part.

[0033] In the specific operation, firstly, the cross bar 11 of the luggage rack 1 is placed on the receiving assembly 27 by manual or automated equipment, and the vertical section of the connecting piece 12 is located in the strip placement groove on the assembly table 21, and then the two fixing seats 13 are respectively placed on the plug-in assemblies 29 located on both sides of the assembly table 21; finally, the cross bar 11 is moved downward by the pressing assembly 24 and finally fits with the assembly table 21; in this process, the linkage assembly 22 will drive the bidirectional stretching assembly 26 to move synchronously in the opposite direction through the gear set 25, thereby pushing the two connecting pieces 12 to move horizontally at the same time. The two ends of the rod 11 move; at the same time, the cross bar 11 will drive the receiving assembly 27 to press down during the downward movement, and then drive the fixing seat 13 to move in the direction of the connecting piece 12 through the No. 1 hinge plate group 28; when the cross bar 11 is completely in contact with the assembly table 21, the arc section of the connecting piece 12 is also just inserted into the socket of the fixing seat 13; at this time, countersunk bolts are respectively inserted into the socket on the cross bar 11 and the through hole on the fixing seat 13 through manual or automated equipment, and then the rubber pad 14 is put on the bottom of the connecting piece 12, and the luggage rack 1 is assembled.

[0034] See also Figure 6 and Figure 7The linkage assembly 22 includes a convex slide 221, a connecting plate 222, a No. 1 tooth plate 223, a return spring 224, and a linkage gear 225; the convex slide 221 is slidably mounted in the T-shaped slide groove, a connecting plate 222 is fixedly connected to the front end surface of the convex slide 221, and two No. 1 tooth plates 223 are fixedly connected symmetrically on the rear end surface of the connecting plate 222; the No. 1 tooth plate 223 is slidably mounted up and down in the notches on the U-shaped plate; the lower end of the No. 1 tooth plate 223 is meshed and connected with the gear set 25 through the linkage gear 225; a return spring 224 is also fixedly connected to the bottom of the convex slide 221; the other end of the return spring 224 is fixedly connected to the U-shaped plate.

[0035] See also Figure 6 The pressing assembly 24 includes a mounting seat 241 and a pressure rod 242; the mounting seat 241 is composed of a rectangular block and two mounting plates fixedly connected to the upper end surface of the rectangular block symmetrically on the left and right; the mounting seat 241 is arranged between the T-shaped slide groove and the strip placement groove, and the mounting seat 241 is fixedly connected to the upper end surface of the horizontal section of the U-shaped plate; a pressure rod 242 is rotatably installed between the two mounting plates, and the upper end surface of the pressure rod 242 is hinged with a connecting rod 23 through two ear plates; the other end of the connecting rod 23 is hingedly connected to the connecting plate 222.

[0036] During specific operation, the return spring 224 will push the convex slide 221 to the highest point along the T-shaped slide groove in the initial state. At this time, under the traction of the connecting rod 23, the pressure rod 242 is tilted away from one end of the convex slide 221 to avoid obstruction when the cross bar 11 is placed on the receiving assembly 27.

[0037] See also Figure 7 The biaxial stretching assembly 26 includes a No. 2 tooth plate 261 and a push rod 262; the No. 2 tooth plate 261 is composed of two pieces at the front and rear as a group, and two groups are symmetrically arranged left and right; the two No. 2 tooth plates 261 in each group are fixedly connected by a push rod 262; the two groups of No. 2 tooth plates 261 are both slidably installed in the slide rails that are symmetrically arranged front and back on the lower end surface of the horizontal section of the U-shaped plate in a fixed manner.

[0038] During specific operation, the pressure rod 242 is rotated downward, and the convex slide seat 221 is driven to slide downward along the T-shaped slide groove through the connecting rod 23, and then the connecting plate 222 and the No. 1 tooth plate 223 will also move downward synchronously; while the No. 1 tooth plate 223 moves downward, it will drive the No. 2 tooth plate 261 and the push rod 262 to move synchronously in the opposite direction through the connecting gear 225 and the gear set 25, thereby pushing the two connecting parts 12 to move to the left and right ends of the cross bar 11 respectively and then dock with the fixed seat 13; when the installation is completed, the pressure rod 242 is released, and the convex slide seat 221 will slide upward along the T-shaped slide groove under the action of the reset spring 224, and then the pressure rod 242 is driven to reset through the connecting rod 23 to avoid affecting the placement of the cross bar 11 into the strip placement groove.

[0039] See also Fig. 9 , Fig.10 , Fig.11 The number of the receiving components 27 is two, and the two receiving components 27 are symmetrically arranged on both sides of the U-shaped plate. The receiving components 27 include a support plate 271, a limit plate 272, an upper connecting seat 273, a lower connecting seat 274, a second hinge plate group 275, a bottom rail 276, and a return spring 277; the front and rear end surfaces of the support plate 271 are fixedly connected to the limit plate 272, and the lower end surface of the support plate 271 is provided with a T-shaped slide rail along its length direction, and two upper connecting seats 273 are slidably arranged on the T-shaped slide rail; the two upper connecting seats 273 are fixedly connected to the upper and lower end surfaces of the support plate 271. The seat 273 is connected to the two lower connecting seats 274 through the second hinge plate group 275; the second hinge plate group 275 is a scissor structure formed by hinged middle parts of two second hinge plates; the two lower connecting seats 274 are slidably mounted on the bottom rail 276; the bottom rail 276 is composed of two square plates arranged front and back and a guide rod fixedly connected between the square plates; the two square plates are respectively fixedly connected to the bottoms of the two vertical sections of the U-shaped plate; the two lower connecting seats 274 are also connected to the plug-in assembly 29 through the first hinge plate group 28.

[0040] During specific operation, the initial state of the support plate 271 is higher than the horizontal section of the U-shaped plate under the action of the return spring 277, and it will support the cross bar 11 when the cross bar 11 is initially placed on the assembly seat; in the process of pressing down and fixing the cross bar 11 by the pressure rod 242, the support plate 271 will be pressed down as the cross bar 11 descends, and at the same time, the angle between the two No. 2 hinged plates in the No. 2 hinged plate group 275 will change, so that the two lower connecting seats 274 will slide synchronously in opposite directions along the guide rod; when sliding, the lower connecting seat 274 will drive the angle between the No. 1 hinged plates on the No. 1 hinged plate group 28 to change, and then drive the fixed seat 13 to move in the direction of the connecting member 12 through the plug-in assembly 29.

[0041] See also Fig. 9 , Fig.10 , Fig.11 There are two plug-in components 29, which are symmetrically arranged on both sides of the receiving component 27. The plug-in components 29 include a cross rail 291, a bottom plate 292, a push-fit module 293, and a support module 294; the cross rail 291 is composed of two long rods arranged front and back; the two long rods are fixedly connected to the two square plates on the bottom rail 276 respectively; a push-fit module 293 is arranged on the cross rail 291; a bottom plate 292 is fixedly arranged on the cross rail 291 below the push-fit module 293; a support module 294 is fixedly arranged on the bottom plate 292 at a position between the push-fit module 293 and the first hinge plate.

[0042] See also Fig. 9 , Fig.10 , Fig.11 The pushing module 293 includes a traction seat 2931, a U-shaped slide 2932, an arc push block 2933, and a trapezoidal push plate 2934; the number of the traction seats 2931 is two, and the two traction seats 2931 are respectively slidably mounted on the two long rods on the cross rail 291; the two traction seats 2931 are fixedly connected with round rods on the end faces away from the first hinge plate group 28, and the other ends of the two round rods are jointly fixedly connected with the U-shaped slide 2932; the two vertical sections of the U-shaped slide 2932 are respectively slidably connected with the two long rods on the cross rail 291; an arc push block 2933 is fixedly arranged on the upper end face of the horizontal section of the U-shaped slide 2932, and the arc surface on the arc push block 2933 has the same arc as the arc surface on the outer side of the fixed seat 13; the horizontal section of the U-shaped slide 2932 is fixedly connected with a trapezoidal push plate 2934 on the end face close to the first hinge plate.

[0043] See also Fig. 9 , Fig.10 , Fig.11 The support module 294 includes a support 2941, a fan-shaped plate 2942, a support platform 2943, a positioning column 2944, and a limit bar 2945; the number of the support 2941 is two, and the two supports 2941 are fixedly arranged on the bottom plate 292 symmetrically in front and back, and the support platform 2943 is rotatably installed on the support 2941 through the fan-shaped plate 2942, and the fan-shaped plate 2942 is fixedly connected to the limit bar 294 at the bottom of the end surface close to the first hinge plate group 28 5; the support platform 2943 is composed of a rectangular support plate and an arc block located above the support 2941 and fixedly connected to the upper end surface of the rectangular support plate, the arc surface of the arc block has the same curvature as the inner arc surface of the fixed seat 13; a positioning column 2944 matched with the mounting hole at the bottom of the fixed seat 13 is also fixedly arranged on the upper end surface of the support platform 2943; a triangular sliding groove matched with the trapezoidal push plate 2934 is provided at the bottom of the support platform 2943.

[0044] During specific operation, in the initial state, the trapezoidal push plate 2934 and the triangular slide groove at the bottom of the support platform 2943 are in a separated state. At this time, the right end of the support platform 2943 is in contact with the bottom plate 292, and the left end of the support platform 2943 is higher than the right end under the support of the fan-shaped plate 2942. Therefore, when the fixed seat 13 is placed on the support platform 2943, it is in a state of left high and right low; then, as the pressure rod 242 is pressed down, the angle of the No. 1 hinge plate group 28 changes, which will drive the traction connecting seat 2931 to slide in the direction of the cross bar 11, thereby pushing the support platform 2943 to the position of the cross bar 11 through the U-shaped slide 2932, the arc push block 2933 and the trapezoidal push plate 2934. The position is moved, and finally the fixed seat 13 and the connecting piece 12 are plugged in. In this process, since the insertion hole in the fixed seat 13 is arc-shaped, the conventional straight line horizontal pushing method cannot make the arc-shaped section of the connecting piece 12 smoothly plugged into the insertion hole. Therefore, a fan-shaped plate 2942 and an arc-shaped push plate are set here. Under the joint action of the two, the support platform 2943 and the fixed seat 13 have an arc-shaped movement trajectory during the process of plugging with the plug-in piece, which is consistent with the plug-in trajectory. When the cross bar 11 happens to fit with the assembly table 21, the support platform 2943 happens to be in a horizontal state and no longer rotates under the obstruction of the limit bar 2945. At this time, the connecting piece 12 is also plugged into the fixed seat 13, and the assembly is completed.

[0045] 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. A high-strength automobile luggage rack, the luggage rack (1) comprising a crossbar (11), a connecting piece (12), and a fixing seat (13); characterized in that: The upper end surface of the cross bar (11) is symmetrically provided with two circular holes for installing countersunk bolts, and the lower end surface of the cross bar (11) is provided with a limit slide groove along its length direction, and two connecting members (12) are symmetrically slidably installed in the limit slide groove; the cross bar (11) is connected to the fixing seats (13) at both ends through the two connecting members (12); the connecting member (12) includes a horizontal section, a vertical section and an arc section, the horizontal section of the connecting member (12) is slidably installed in the limit slide groove, the upper end surface of the horizontal section is provided with a threaded hole corresponding to the circular hole on the cross bar (11), and the lower end surface of the horizontal section is fixedly connected with The vertical section and the horizontal section are also fixedly connected to an arc section on the end surface close to the circular hole, and the upper end surface of the arc section is also provided with a threaded hole; the bottom of the connecting piece (12) is also sleeved with a rubber pad (14) to prevent damage to the roof due to too small a contact area; the interior of the fixing seat (13) is provided with a plug hole that matches the arc section of the connecting piece (12); the upper end surface of the fixing seat (13) is provided with a through hole corresponding to the threaded hole on the arc section of the connecting piece (12); and the lower end surface of the arc section is also provided with a mounting hole for mounting on the roof of the car; the luggage rack (1) is assembled by a luggage rack assembly unit (2); The luggage rack assembly unit (2) comprises an assembly platform (21), a linkage component (22), a connecting rod (23), a pressing component (24), a gear group (25), a bidirectional stretching component (26), a receiving component (27), a first hinge plate group (28), and a plug-in component (29); the assembly platform (21) comprises a U-shaped plate and a vertical plate, wherein a strip placement groove is provided in the middle of the horizontal section of the U-shaped plate along its length direction; the upper end surface of the horizontal section of the U-shaped plate is fixedly connected to the vertical plate at a position close to the rear, and a T-shaped slide groove is provided in the middle of the vertical plate in the up-and-down direction; the horizontal section of the U-shaped plate is symmetrically provided with two notches at positions located on the left and right sides of the T-shaped slide groove; a linkage is slidably installed in the T-shaped slide groove and the notch. A pressing assembly (24) is fixedly arranged on the upper end surface of the horizontal section of the U-shaped plate between the T-shaped slide groove and the strip placement groove; the pressing assembly (24) and the linkage assembly (22) are hingedly connected via a connecting rod (23); a bidirectional stretching assembly (26) is arranged on the lower end surface of the horizontal section of the U-shaped plate, and the bidirectional stretching assembly (26) is connected to the linkage assembly (22) via a gear set (25); a receiving assembly (27) is arranged on the left and right sides of the horizontal section of the U-shaped plate; the receiving assembly (27) is connected to the plug-in assembly (29) via a No. 1 hinged plate assembly (28); the No. 1 hinged plate assembly (28) is a scissor-fork structure composed of two No. 1 hinged plates hingedly connected at the middle part; The linkage assembly (22) comprises a convex slide (221), a connecting plate (222), a first tooth plate (223), a return spring (224), and a linkage gear (225); the convex slide (221) is slidably mounted in the T-shaped slide groove, a connecting plate (222) is fixedly connected to the front end surface of the convex slide (221), and two first tooth plates (223) are symmetrically fixedly connected to the rear end surface of the connecting plate (222); the first tooth plates (223) are slidably mounted in the notches on the U-shaped plate respectively; the lower end of the first tooth plate (223) is meshed and connected to the gear set (25) through the linkage gear (225); a return spring (224) is also fixedly connected to the bottom of the convex slide (221); the return spring (224) fixes the other end of the convex slide (221) to the U-shaped plate in an initial state; The pressing assembly (24) comprises a mounting seat (241) and a pressing rod (242); the mounting seat (241) comprises a rectangular block and two mounting plates fixedly connected to the upper end surface of the rectangular block in a left-right symmetrical manner; the mounting seat (241) is arranged between the T-shaped sliding groove and the strip placement groove, and the mounting seat (241) is fixedly connected to the upper end surface of the horizontal section of the U-shaped plate; a pressing rod (242) is rotatably mounted between the two mounting plates, and the upper end surface of the pressing rod (242) is hingedly connected to a connecting rod (23) via two ear plates; the other end of the connecting rod (23) is hingedly connected to the connecting plate (222); The biaxial stretching assembly (26) comprises a second tooth plate (261) and a push rod (262); the second tooth plate (261) comprises two front and rear pieces as one group, and two groups are symmetrically arranged left and right; the two second tooth plates (261) in each group are fixedly connected via the push rod (262); the two groups of second tooth plates (261) are slidably mounted in a slide rail that is symmetrically arranged front and back on the lower end surface of the horizontal section of the U-shaped plate in a fixed manner; The number of the receiving components (27) is two, and the two receiving components (27) are symmetrically arranged on both sides of the U-shaped plate. The receiving components (27) include a support plate (271), a limit plate (272), an upper connecting seat (273), a lower connecting seat (274), a second hinge plate group (275), a bottom rail (276), and a return spring (277); the limit plate (272) is fixedly connected to the front and rear end surfaces of the support plate (271), and a T-shaped slide rail is arranged on the lower end surface of the support plate (271) along its length direction, and two upper connecting seats (273) are slidably arranged on the T-shaped slide rail; the two The upper connecting seat (273) is connected to the two lower connecting seats (274) through the second hinge plate group (275); the second hinge plate group (275) is a scissor structure formed by hinged middle parts of two second hinge plates; the two lower connecting seats (274) are slidably sleeved on the bottom rail (276); the bottom rail (276) is composed of two square plates arranged front and back and a guide rod fixedly connected between the square plates; the two square plates are respectively fixedly connected to the bottoms of the two vertical sections of the U-shaped plate; the two lower connecting seats (274) are also connected to the plug-in assembly (29) through the first hinge plate group (28); The number of the plug-in components (29) is two, and the two plug-in components (29) are symmetrically arranged on both sides of the receiving component (27). The plug-in components (29) include a cross rail (291), a bottom plate (292), a push-fit module (293), and a support module (294); the cross rail (291) is composed of two long rods arranged front and back; the two long rods are respectively fixedly connected to two square plates on the bottom rail (276); the cross rail (291) is provided with a push-fit module (293); the bottom plate (292) is fixedly arranged on the cross rail (291) below the push-fit module (293); and the support module (294) is fixedly arranged on the bottom plate (292) at a position between the push-fit module (293) and the first hinge plate.

2. According to claim 1, a high-strength automobile luggage rack is characterized in that: The push-to-close module (293) comprises a traction seat (2931), a U-shaped slide seat (2932), a curved push block (2933), and a trapezoidal push plate (2934); the number of the traction seats (2931) is two, and the two traction seats (2931) are respectively slidably mounted on two long rods on the cross rail (291); the two traction seats (2931) are fixedly connected to round rods on the end surfaces away from the first hinge plate group (28), and the other ends of the two round rods are fixedly connected together A U-shaped slide (2932) is provided; two vertical sections of the U-shaped slide (2932) are respectively slidably connected to two long rods on the horizontal rail (291); an arc-shaped push block (2933) is fixedly arranged on the upper end surface of the horizontal section of the U-shaped slide (2932); the arc surface on the arc-shaped push block (2933) has the same arc as the outer arc surface of the fixed seat (13); a trapezoidal push plate (2934) is fixedly connected to the end surface of the horizontal section of the U-shaped slide (2932) close to the first hinge plate.

3. According to claim 2, a high-strength automobile luggage rack is characterized in that: The support module (294) comprises a support (2941), a fan-shaped plate (2942), a support platform (2943), a positioning column (2944), and a limit bar (2945); the number of the supports (2941) is two, and the two supports (2941) are fixedly arranged on the bottom plate (292) symmetrically in the front and rear directions; the support platform (2943) is rotatably mounted on the support (2941) via the fan-shaped plate (2942); the fan-shaped plate (2942) is fixedly connected to the limit bar at the bottom of the end surface close to the first hinge plate group (28); The support platform (2943) is composed of a rectangular support plate and an arc block located above the support (2941) and fixedly connected to the upper end surface of the rectangular support plate, the arc surface of the arc block having the same curvature as the inner arc surface of the fixed seat (13); a positioning column (2944) is fixedly provided on the upper end surface of the support platform (2943) and is matched with the mounting hole at the bottom of the fixed seat (13); a triangular slide groove is provided at the bottom of the support platform (2943) and is matched with the trapezoidal push plate (2934).

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