Automobile rear wall cross beam convenient to assemble and disassemble

Abstract

The utility model discloses an automobile rear wall cross beam convenient to assemble and disassemble, and particularly relates to the technical field of automobile part mounting structures, the automobile rear wall cross beam convenient to assemble and disassemble comprises a center beam, the sides, away from each other, of two connecting mechanisms are movably connected with limiting mechanisms, and the sides, away from each other, of the two limiting mechanisms are in threaded connection with clamping mechanisms; transmission assemblies are movably connected to the front portions of the two tray arms correspondingly, and positioning parts are symmetrically and fixedly connected to the upper sides and the lower sides of the interiors of the two transmission assemblies. According to the automobile rear wall cross beam convenient to assemble and disassemble, the position of the connecting mechanism can be locked through the limiting mechanism, meanwhile, the position of the limiting mechanism can be fixed through the clamping mechanism, and the positioning component can be fixed through the transmission assembly; and the relative position of the transmission assembly and the center beam can be locked through the positioning component, so that the practicability and universality of the device are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile part mounting structure, especially relates to a car rear wall beam which is convenient to assemble and disassemble. BACKGROUND

[0002] The car rear wall beam is a part of the automobile frame, located at the rear of the vehicle, used to ensure the torsional stiffness of the frame and withstand longitudinal load, while supporting the main components on the car. The main function of the rear wall beam is to absorb and disperse impact force when the vehicle collides, thereby protecting the safety of the passengers inside the vehicle.

[0003] The design and material of the rear wall beam are also very important. It is usually stamped from low alloy steel plate, with a cross-section of channel or I-shaped, sometimes causing a box-shaped cross-section. This design can ensure effective absorption and dispersion of impact force when colliding, protecting the vehicle structure and passengers.

[0004] Chinese patent document CN202413937U discloses an automobile rear beam mounting structure, aiming to provide a rear beam mounting structure which is convenient to install, disassemble and maintain, and can also improve the energy absorption effect of the rear beam. The above patent document includes connecting plates respectively arranged on the left and right sides of the rear beam, and an energy absorption beam perpendicular to the connecting plates is arranged between the rear beam and the connecting plates; the connecting plates are connected with the rear floor or rear wall by bolts.

[0005] The above patent document can improve the energy absorption effect of the rear beam during implementation, but the rear wall beam is a whole structure, which needs to be installed or disassembled from the rear of the vehicle at the same time, and the rear wall beam cannot be divided into multiple structures for installation and disassembly one by one, resulting in increased difficulty for workers to install the rear wall beam, and affecting the work efficiency of the workers. UTILITY MODEL CONTENTS

[0006] The main purpose of the utility model is to provide a car rear wall beam which is convenient to assemble and disassemble, and can effectively solve the problem that the rear wall beam cannot be divided into multiple structures for installation and disassembly one by one.

[0007] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0008] A rear crossbeam of an automobile that is easy to load and unload, includes a center beam, and positioning holes communicating with the outside world are opened on the left and right parts of the upper and lower ends of the outer surface of the center beam, and internal threaded holes communicating with the outside world are symmetrically opened on the left and right parts of the front end of the outer surface of the center beam, and the middle parts of the left and right ends of the outer surface of the center beam are symmetrically fixedly connected with connecting mechanisms, and the sides of the two connecting mechanisms that are away from each other are movably connected with limiting mechanisms, and the sides of the two limiting mechanisms that are away from each other are threadedly connected with clamping mechanisms, and the left and right parts of the outer surface of the center beam are symmetrically and movably connected with tray arms, and the fronts of the two tray arms are movably connected with transmission components, and the middle parts of the two transmission components are threadedly connected with external threaded rods, and the upper and lower sides of the two transmission components are symmetrically and fixedly connected with positioning components.

[0009] Preferably, the connecting mechanism includes a fixed block, and a rectangular through groove communicating with the outside world is provided at one end of the outer surface of the fixed block away from the center beam, an annular cavity communicating with the outside world is provided on the side of the inner cavity of the rectangular through groove close to the center beam, and a rectangular card groove communicating with the inner cavity of the annular cavity is provided on the side of the inner cavity of the annular cavity away from the center beam.

[0010] Preferably, the limiting mechanism includes a movable pin, and the outer surface of the movable pin is fixedly connected to a rectangular bar at one end close to the center beam, and an inner threaded hole two communicating with the outside world is opened in the middle of the end of the outer surface of the movable pin away from the center beam, and the outer surface of the rectangular bar is movably connected to the inner cavity of the corresponding annular cavity.

[0011] Preferably, the clamping mechanism includes a clamping ring, an outer surface of the clamping ring is fixedly connected to the middle of one end close to the center beam with an external threaded column, and the outer surface of the external threaded column is threadedly connected to the inner surfaces of the corresponding internal threaded holes.

[0012] Preferably, the transmission assembly includes a U-shaped plate, and the top wall and the bottom wall of the inner surface of the U-shaped plate are symmetrically provided with cylindrical holes communicating with the outside.

[0013] Preferably, the positioning component includes a fixed sleeve, and the front wall and the rear wall of the inner surface of the fixed sleeve are symmetrically provided with guide grooves communicating with the inner cavity of the fixed sleeve, the top wall of the inner cavity of the fixed sleeve is fixedly connected with an elastic component, and the outer surface of the fixed sleeve is fixedly connected to the inner wall of the corresponding cylindrical hole.

[0014] Preferably, the elastic component includes a spring, the lower part of the outer surface of the spring is fixedly connected to a limiting plate, the lower end of the outer surface of the limiting plate is fixedly connected to a hemispherical block, and the outer surface of the limiting plate is slidably connected to the inner cavities of the two guide grooves corresponding thereto, and the upper part of the outer surface of the spring is fixedly connected to the top wall of the inner cavity of the fixed sleeve.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The utility model can realize the function of connecting with the corresponding limiting mechanism through the connecting mechanism, and can lock the position of the connecting mechanism through the limiting mechanism. At the same time, the position of the limiting mechanism can be fixed through the clamping mechanism, thereby improving the practicality of the device. The positioning component can be fixed through the transmission assembly, and the position of the transmission assembly can be locked under the action of the external threaded rod. Moreover, the relative position of the transmission assembly and the center beam can be locked through the positioning component, thereby improving the practicality and universality of the device.

[0017] 2. When the center beam and the two tray arms need to be disassembled, the corresponding clamping rings and external threaded rods are rotated and disassembled in turn, and then the two U-shaped plates are slid out from the inner cavities of the corresponding tray arms to release the relative positions of the center beam and the two tray arms. At this time, the two tray arms and the center beam can be disassembled from the rear of the vehicle in turn, thereby improving the practicality and universality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of a half-section structure of the present utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the connecting mechanism, limiting mechanism, clamping mechanism, and transmission assembly of the utility model;

[0021] Figure 4 It is an enlarged structural diagram of Figure A in the present utility model.

[0022] In the figure: 1. Center beam; 11. Positioning hole; 12. Internal threaded hole 1; 2. Connecting mechanism; 21. Fixed block; 22. Rectangular through groove; 23. Annular cavity; 24. Rectangular slot; 3. Limiting mechanism; 31. Movable pin; 32. Rectangular bar; 33. Internal threaded hole 2; 4. Clamping mechanism; 41. Clamping ring; 42. Externally threaded column; 5. Tray arm; 6. Transmission assembly; 61. U-shaped plate; 62. Cylindrical hole; 7. Externally threaded rod; 8. Positioning component; 81. Fixed sleeve; 82. Guide groove; 83. Elastic assembly; 831. Spring; 832. Limiting plate; 833. Hemispherical block. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1As shown, a kind of automobile rear wall crossbeam convenient to load and unload, including center beam 1, the left and right parts of the upper end and lower end of the outer surface of center beam 1 are provided with the positioning hole 11 communicated with the outside, the left and right parts of the front end of the outer surface of center beam 1 are provided with the inner thread hole one 12 communicated with the outside, the middle part of the left end and the right end of the outer surface of center beam 1 is fixedly connected with connecting mechanism 2, can realize and with the corresponding limiting mechanism 3 connection effect, the side of two connecting mechanisms 2 away from each other is movably connected with limiting mechanism 3, can realize the position of connecting mechanism 2 is locked effect, the left and right parts of the outer surface of center beam 1 are movably connected with tray arm 5, the front of two tray arms 5 is movably connected with transmission assembly 6, can realize the fixed effect of positioning part 8, the middle part of two transmission assemblies 6 is screw-connected with outer thread rod 7, can realize the position of transmission assembly 6 is locked effect, the inside upper side and lower side of two transmission assemblies 6 are fixedly connected with positioning part 8, can realize the relative position of transmission assembly 6 and center beam 1 is locked effect.

[0025] In order to realize the purpose of connecting with the corresponding limiting mechanism 3, referring to Figure 3 , connecting mechanism 2 includes fixed block 21, the end of the outer surface of fixed block 21 away from center beam 1 is provided with the rectangular through slot 22 communicated with the outside, can realize the movement of movable pin 31 and rectangular strip 32 is guided effect, the side of the inner cavity of rectangular through slot 22 close to center beam 1 is provided with the annular cavity 23 communicated with the outside, can realize the rotating effect of rectangular strip 32, the side of the inner cavity of annular cavity 23 away from center beam 1 is provided with the rectangular clamping groove 24 communicated with the inner cavity of annular cavity 23, can realize the position of rectangular strip 32 is clamped effect.

[0026] In order to realize the purpose of locking the position of connecting mechanism 2, referring to Figure 3 , limiting mechanism 3 includes movable pin 31, the end of the outer surface of movable pin 31 close to center beam 1 is fixedly connected with rectangular strip 32, the middle part of the end of the outer surface of movable pin 31 away from center beam 1 is provided with the inner thread hole two 33 communicated with the outside, can realize the connecting effect with corresponding outer thread column 42, and the outer surface of rectangular strip 32 and the inner cavity of corresponding annular cavity 23 are movably connected.

[0027] In order to realize the purpose of fixing the position of limiting mechanism 3, referring to Figure 3 , clamping mechanism 4 includes clamping ring 41, the middle part of the end of the outer surface of clamping ring 41 close to center beam 1 is fixedly connected with outer thread column 42, and the outer surface of outer thread column 42 and the inner surface of corresponding inner thread hole two 33 are screw-connected.

[0028] When it is needed to lock the position of the fixed block 21 and the tray arm 5, first of all, the movable pin 31 and the rectangular strip 32 are slid along the corresponding rectangular through slot 22 inner cavity and are inserted into the annular cavity 23 inner cavity, the movable pin 31 is rotated by 90 degrees, then the movable pin 31 is pulled outwards and is clamped in the rectangular clamping groove 24 inner cavity, at this time, the externally threaded column 42 is rotated into the corresponding internally threaded hole two 33 inner cavity, then the clamping ring 41 is completely attached to the outer wall of the tray arm 5.

[0029] In order to achieve the purpose of fixing the positioning component 8, referring to Figure 3 , the transmission assembly 6 comprises a U-shaped plate 61, the inner surface top wall and the bottom wall of the U-shaped plate 61 are symmetrically provided with a columnar hole 62 which is communicated with the outside, which can realize the installation and fixing of the positioning component 8.

[0030] In order to achieve the purpose of locking the relative position of the transmission assembly 6 and the center beam 1, referring to Figure 4 , the positioning component 8 comprises a fixed sleeve 81, the front wall and the rear wall of the inner surface of the fixed sleeve 81 are symmetrically provided with a guide groove 82 which is communicated with the inner cavity of the fixed sleeve 81, which can realize the guiding and limiting of the movement of the limiting disc 832, the inner cavity top wall of the fixed sleeve 81 is fixedly connected with an elastic assembly 83, which can realize the clamping of the U-shaped plate 61 and the center beam 1, and the outer surface of the fixed sleeve 81 and the inner wall of the corresponding columnar hole 62 are fixedly connected.

[0031] In order to achieve the purpose of clamping the U-shaped plate 61 and the center beam 1, referring to Figure 4 , the elastic assembly 83 comprises a spring 831, the lower part of the outer surface of the spring 831 is fixedly connected with a limiting disc 832, the lower end of the outer surface of the limiting disc 832 is fixedly connected with a hemispherical block 833, the outer surface of the limiting disc 832 and the inner cavities of the two guide grooves 82 corresponding thereto are slidingly connected, and the upper part of the outer surface of the spring 831 is fixedly connected with the inner cavity top wall of the fixed sleeve 81.

[0032] After the U-shaped plate 61 is inserted into the corresponding U-shaped plate 61 inner cavity, the hemispherical block 833 will be extruded with the outer surface of the center beam 1, so that the hemispherical block 833 extrudes the corresponding spring 831 and enters the corresponding fixed sleeve 81 inner cavity, until the hemispherical block 833 reaches the corresponding positioning hole 11 inner cavity, at this time, the hemispherical block 833 will push the hemispherical block 833 to clamp into the corresponding positioning hole 11 inner cavity under the elastic force of the corresponding spring 831, so as to lock the position of the center beam 1 and the tray arm 5.

[0033] The working principle of the present invention is as follows: when the new rear cross beam needs to be disassembled from the rear of the vehicle, first, the two externally threaded rods 7 are rotated and removed from the middle of the corresponding U-shaped plate 61, and then the U-shaped plate 61 is pulled out, and then the two clamping rings 41 are rotated and removed from the inner cavity of the corresponding internally threaded hole 23, and then the two movable pins 31 are pushed toward the rear so that the two rectangular bars 32 respectively enter the inner cavity of the corresponding annular cavity 23, and then the two movable pins 31 are rotated to make them slide out along the inner cavity of the corresponding rectangular through groove 22. At this time, the two tray arms 5 can be disassembled from the left and right sides of the center beam 1 respectively.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A rear crossbeam of an automobile that is easy to load and unload, comprising a center beam (1), characterized in that: The upper and lower left and right parts of the outer surface of the center beam (1) are both provided with positioning holes (11) communicating with the outside world, and the left and right parts of the front end of the outer surface of the center beam (1) are symmetrically provided with internal threaded holes (12) communicating with the outside world. The middle parts of the left and right ends of the outer surface of the center beam (1) are symmetrically fixedly connected with connecting mechanisms (2), and the sides of the two connecting mechanisms (2) away from each other are movably connected with limiting mechanisms (3), and the sides of the two limiting mechanisms (3) away from each other are threadedly connected with clamping mechanisms (4), and the left and right parts of the outer surface of the center beam (1) are symmetrically movably connected with tray arms (5), and the front parts of the two tray arms (5) are both movably connected with transmission components (6), and the middle parts of the two transmission components (6) are both threadedly connected with external threaded rods (7), and the upper and lower sides of the interiors of the two transmission components (6) are symmetrically fixedly connected with positioning components (8).

2. The automobile rear cross member that is easy to load and unload according to claim 1, characterized in that: The connecting mechanism (2) comprises a fixing block (21); an end of the outer surface of the fixing block (21) away from the center beam (1) is provided with a rectangular through groove (22) communicating with the outside world; an inner cavity of the rectangular through groove (22) is provided with an annular cavity (23) communicating with the outside world on a side close to the center beam (1); and an inner cavity of the annular cavity (23) is provided with a rectangular clamping groove (24) communicating with the inner cavity of the annular cavity (23) on a side away from the center beam (1).

3. The automobile rear cross member that is easy to load and unload according to claim 2, characterized in that: The limiting mechanism (3) comprises a movable pin (31), an outer surface of the movable pin (31) having an end close to the center beam (1) fixedly connected to a rectangular bar (32), an outer surface of the movable pin (31) having an end away from the center beam (1) having a second internal threaded hole (33) in communication with the outside world, and an outer surface of the rectangular bar (32) and an inner cavity of the corresponding annular cavity (23) being movably connected.

4. The automobile rear cross member that is easy to assemble and disassemble according to claim 3, characterized in that: The clamping mechanism (4) comprises a clamping ring (41), the outer surface of the clamping ring (41) being fixedly connected to an external threaded column (42) at the middle of one end close to the center beam (1), and the outer surface of the external threaded column (42) being threadedly connected to the inner surface of the corresponding second internal threaded hole (33).

5. The automobile rear cross member that is easy to assemble and disassemble according to claim 1, characterized in that: The transmission assembly (6) comprises a U-shaped plate (61), and the top wall and the bottom wall of the inner surface of the U-shaped plate (61) are symmetrically provided with cylindrical holes (62) communicating with the outside.

6. The automobile rear cross member that is easy to assemble and disassemble according to claim 5, characterized in that: The positioning component (8) includes a fixed sleeve (81), the front wall and the rear wall of the inner surface of the fixed sleeve (81) are symmetrically provided with guide grooves (82) communicating with the inner cavity of the fixed sleeve (81), the top wall of the inner cavity of the fixed sleeve (81) is fixedly connected with an elastic component (83), and the outer surface of the fixed sleeve (81) is fixedly connected to the inner wall of the corresponding cylindrical hole (62).

7. The automobile rear cross member that is easy to assemble and disassemble according to claim 6, characterized in that: The elastic component (83) includes a spring (831), the lower portion of the outer surface of the spring (831) is fixedly connected to a limiting plate (832), the lower end of the outer surface of the limiting plate (832) is fixedly connected to a hemispherical block (833), and the outer surface of the limiting plate (832) is slidably connected to the inner cavities of two corresponding guide grooves (82), and the upper portion of the outer surface of the spring (831) is fixedly connected to the top wall of the inner cavity of the fixed housing (81).

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