Vehicle-mounted hanger capable of being firmly connected with automobile

Abstract

The utility model relates to a vehicle-mounted hanger capable of being firmly connected with an automobile, which comprises a frame for placing a bicycle, and a connecting pipe connected with the automobile is arranged on the frame; the tensioning device is characterized in that a tensioning block capable of longitudinally moving and a driving block capable of axially moving are restrained in the connecting pipe, a through hole for the tensioning block to extend out is formed in the pipe wall of the connecting pipe, and the driving block and the tensioning block are in mutual slope contact. And the axial movement of the driving block can push the tensioning block to longitudinally move so as to adjust the degree of the tensioning block extending out of the through hole. The tensioning block and the driving block are arranged in the connecting pipe, and the driving block and the tensioning block are in mutual inclined surface contact, so that the axial movement of the driving block can push the tensioning block to move longitudinally to adjust the degree of the tensioning block extending out of the through hole, and therefore, after the connecting pipe is inserted into the insertion pipe at the tail of the vehicle, even if a gap is formed between the connecting pipe and the insertion pipe, the tensioning block can be pulled out. The outwards-extending tensioning block can be tensioned in the insertion pipe, the gap between the connecting pipe and the insertion pipe is filled, and it is ensured that the connecting pipe and the insertion pipe are tightly matched together.

Description

Technical Field

[0001] The utility model relates to an additional device for an automobile, in particular to a platform-type vehicle-mounted hanging rack connected to the rear of the automobile, the hanging rack can be used to hang bicycles or other articles. Background Art

[0002] The vehicle-mounted rack is a device installed at the rear of the car for transporting bicycles, motorcycles and other items to solve the problem that bicycles and other items are inconvenient to carry with the car due to their large size. There are two common ways to fix the vehicle-mounted rack to the car: the first is to fix the connecting device on the vehicle-mounted rack with the ball head connector at the rear of the car; the second is to use a connecting pipe and a tail pipe to be plugged in and connected by pins, wherein the connecting pipe is set on the vehicle-mounted rack and the tail pipe is set at the rear of the car.

[0003] For example, a Chinese utility model patent "A convenient rear bicycle rack" with patent number ZL202222850275.7 (publication number CN218616475U) discloses a vehicle-mounted rack that adopts the aforementioned second connection method with the car, including a rear rod fixedly connected to the rear of the car by bolts, and a mounting frame is provided at the end of the rear rod away from the car, and a wheel seat for placing the wheel is provided on the mounting frame. Another example is a Chinese utility model patent "Bicycle rack for vehicle" with patent number ZL202021181699.3 (publication number CN212422996U) which also discloses a vehicle-mounted rack that adopts the aforementioned second connection method with the car.

[0004] In order to facilitate the insertion of the connecting pipe into the plug at the rear of the car, the two are loosely matched, which also causes the connecting pipe to shake easily after being inserted into the plug, and the first plug hole on the side of the connecting pipe for the plug to be inserted and the second plug hole on the side wall of the plug for the plug to be inserted are not easy to align, making the entire frame assembly inconvenient. In addition, during the operation of the car, the connecting pipe and the plug are a little loose, resulting in a clanging sound, a loud noise, and long-term shaking can easily damage the bolts, causing safety hazards. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a vehicle-mounted bracket with a reasonable structural design that can be firmly connected to a car in view of the above-mentioned existing technical status, which can ensure the convenient installation of the bracket with the rear end of the car and ensure the tight and stable connection between the connecting pipe and the parking space pipe.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a vehicle-mounted hanger that can be firmly connected to a car, including a frame for placing a bicycle, and a connecting pipe connected to the car is provided on the frame; the characteristic is that a tensioning block that can move longitudinally and a driving block that can move axially are constrained in the connecting pipe, and a through hole for the tensioning block to extend out is opened on the tube wall of the connecting pipe, and the driving block and the tensioning block are in oblique contact with each other, so that the axial movement of the driving block can push the tensioning block to move longitudinally to adjust the degree to which the tensioning block extends out of the through hole.

[0007] In order to make the connection pipe more stably connected to the plug-in pipe at the rear of the vehicle, the connection pipe has two through-holes, namely, an upper through-hole located on the top wall of the connection pipe and a right through-hole located on the right wall of the connection pipe; the tension block has an upper tension part extending upward and passing through the upper through-hole, and a right tension part extending rightward and passing through the right through-hole. There are two tension parts, which pass through the through-holes on different sides of the connection pipe respectively, so that it can be tensioned with the plug-in pipe in two directions.

[0008] To ensure that the axial movement of the drive block can synchronously drive the tension block to move up and left, the drive block has a lower bevel and a left bevel; the tension block has an upper bevel that contacts and slides with the lower bevel, and a right bevel that contacts and slides with the left bevel.

[0009] As a specific inclined surface setting method, the right side of the driving block has a first wall extending upward, the top surface of the first wall is a lower inclined surface, and the left side of the driving block has a second wall extending rightward, the side surface of the second wall is a left inclined surface. The first wall and the second wall are arranged in a staggered manner to support the tensioning block respectively.

[0010] In order to make the tension block move better along the preset track, a lower guide groove is provided at the bottom of the tension block, and the bottom of the lower guide groove constitutes the upper inclined surface; a side guide groove is provided on the left side of the tension block, and the bottom of the side guide groove constitutes the right inclined surface. The lower guide groove can guide the first wall, and the side guide groove can guide the second wall.

[0011] This solution is another way of matching the tension block with the connecting tube. The connecting tube is a square tube. The tension block is attached to the top of the driving block. The top surface of the driving block is a lower inclined surface. The bottom surface of the tension block is an upper inclined surface. The through hole is an upper through hole located on the top wall of the connecting tube. The top surface of the tension block has an upper tensioning part extending upward and passing through the upper through hole. In this method, the structures of the driving block and the tension block are simpler, and at least there is only one tensioning part.

[0012] As a preferred method for driving the driving block to move axially, the frame is constrained with a driving rod that can rotate around its own axis, and the driving rod is threadedly connected to the driving block. By rotating the driving rod, the driving block can be driven to move axially under the action of the threaded transmission, which is easy to operate, and the threaded connection has a locking effect. Of course, driving the driving block is not limited to the above structure.

[0013] For easy operation, the frame includes a main frame and a rear frame, wherein the rear frame is connected to the rear end of the main frame, the connecting pipe is fixed to the back plate of the rear frame, and the driving rod is passed through the back plate of the rear frame. The main frame is used to place the bicycle, and the rear frame is used to install the connecting pipe. At the same time, the installation operation is carried out on the rear frame part, which is easy to operate.

[0014] In order to further ensure the connection between the bracket and the plug at the rear of the vehicle is secure, a first pin hole is provided on the side wall of the connecting tube, a latch that can slide left and right is constrained on the back plate of the rear frame, one side of the connecting tube is arranged next to the latch, the end of the latch has a locking portion that is bent toward the connecting tube and inserted into the first pin hole, and the latch is acted on by a spring so that the locking portion of the latch has a tendency to be inserted into the first pin hole. When the connecting tube is tightened in the plug by the tightening block, the connecting tube is axially constrained in the plug by inserting the latch into the first pin hole.

[0015] As a mounting structure of the bolt, the front end of the bolt is provided with a guide rod extending in the left and right directions, a cover is fixed on the back plate of the rear frame, the guide rod is inserted through the cover and the side wall of the connecting pipe and can move left and right, the spring is sleeved on the guide rod and acts on the bolt, and the front end of the cover is provided with a guide groove for the bolt to pass through and slide. The setting of the spring prevents the bolt from being separated from the first pin hole in the case of shaking, and the bolt is connected to a guide rod, and the bolt can be operated by operating the guide rod. The setting of the cover also provides a suitable installation position for the guide rod.

[0016] Compared with the prior art, the advantages of the present invention are that a tension block and a driving block are arranged in the connecting tube, and the driving block and the tension block are in oblique contact with each other, so that the axial movement of the driving block can push the tension block to move longitudinally to adjust the degree to which the tension block extends out of the perforation. In this way, when the connecting tube is inserted into the insert tube at the rear of the vehicle, even if there is a gap between the connecting tube and the insert tube, the extended tension block can be tightened in the insert tube to fill the gap between the connecting tube and the insert tube, thereby ensuring that the connecting tube and the insert tube are tightly fitted together. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the embodiment of the utility model after removing the main frame Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the embodiment of the utility model after removing the main frame Figure 2 ;

[0020] Figure 4 This is a schematic diagram of the cooperation between the tensioning block and the driving block in the embodiment of the utility model;

[0021] Figure 5 This is a cross-sectional view of an embodiment of the utility model after the main frame is removed;

[0022] Figure 6 This is a three-dimensional exploded view of the embodiment of the utility model after removing the main frame;

[0023] Figure 7 This is a three-dimensional schematic diagram of a tensioning block in an embodiment of the utility model;

[0024] Figure 8 This is a three-dimensional schematic diagram of a driving block in an embodiment of the utility model;

[0025] Fig. 9 This is a diagram of the use status of the embodiment of the utility model connected to the insertion tube at the rear of the vehicle. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0027] like Figures 1 to 8 Shown is a preferred embodiment of the utility model.

[0028] A vehicle-mounted rack which can be firmly connected to a vehicle comprises a frame 1 for placing a bicycle, wherein the frame 1 is provided with a connecting pipe 2 which is connected to the vehicle.

[0029] A tension block 3 capable of longitudinal movement and a driving block 5 capable of axial movement are constrained in the connecting tube 2. A through hole 21 for the tension block 3 to extend out is opened on the tube wall of the connecting tube 2. The driving block 5 and the tension block 3 are in oblique contact with each other, so that the axial movement of the driving block 5 can push the tension block 3 to move longitudinally to adjust the degree to which the tension block 3 extends out of the through hole 21.

[0030] The connecting tube 2 has two through holes 21, namely an upper through hole 21a located on the top wall of the connecting tube 2 and a right through hole 21b located on the right wall of the connecting tube 2; the tensioning block 3 has an upper tensioning portion 3a extending upward and passing through the upper through hole 21a, and a right tensioning portion 3b extending rightward and passing through the right through hole 21b.

[0031] The driving block 5 has a lower inclined surface 511 and a left inclined surface 521; the tensioning block 3 has an upper inclined surface 311 that contacts and slides with the lower inclined surface 511, and a right inclined surface 321 that contacts and slides with the left inclined surface 521. The right side of the driving block 5 has a first wall 51 extending upward, the top surface of the first wall 51 is the lower inclined surface 511, and the left side of the driving block has a second wall 52 extending rightward, the side surface of the second wall 52 is the left inclined surface 521. The bottom of the tensioning block 3 is provided with a lower guide groove 31, the bottom of the lower guide groove 31 constitutes the upper inclined surface 311; the left side of the tensioning block is provided with a side guide groove 32, the bottom of the side guide groove 32 constitutes the right inclined surface 321.

[0032] The frame 1 is constrained with a driving rod 6 that can rotate around its own axis, and the driving rod 6 is threadedly connected to the driving block 5. The driving rod 6 in this embodiment is a screw rod, and the outer end of the driving rod 6 is connected to a knob 61 for driving the driving rod 6 to rotate. The driving block 5 is provided with a threaded hole that matches the screw thread; it is also possible to set a protrusion in the hole of the driving rod or the driving block, and to match the threaded transmission accordingly.

[0033] The frame 1 includes a main frame 1a and a rear frame 1b, wherein the rear frame 1b is connected to the rear end of the main frame 1a, the connecting pipe 2 is fixed to the back plate of the rear frame 1b, and the driving rod 6 is inserted through the back plate of the rear frame 1b. A first pin hole 22 is opened on the side wall of the connecting pipe 2, and a latch 7 capable of sliding left and right is constrained on the back plate of the rear frame 1b. The latch 7 is arranged beside one side of the connecting pipe 2, and the end of the latch 7 has a locking portion 71 bent toward the connecting pipe 2 and inserted into the first pin hole 22. The latch 7 is acted on by a spring 4 so that the locking portion 71 of the latch 7 has a tendency to be inserted into the first pin hole 22. A guide rod 8 extending left and right is provided at the front end of the latch 7, and a cover 9 is fixed to the back plate of the rear frame 1b. The guide rod 8 is inserted through the cover 9 and the side wall of the connecting pipe 2 and can move left and right. The spring 4 is sleeved on the guide rod 8 and acts on the latch 7. A guide groove 91 is provided at the front end of the cover 9 for the latch 7 to pass through and slide.

[0034] When assembling, Fig. 9 As shown, the connecting pipe 2 is inserted into the inserting tube 10 at the rear of the vehicle, and the locking portion 71 of the latch 7 is passed through the second pin hole 101 on the side wall of the inserting tube 10 and then inserted into the first pin hole 22 of the connecting pipe; then, by driving the driving rod 6 to rotate, the driving block 5 is driven to move axially, and under the cooperation of the upper inclined surface 311 and the lower inclined surface 511, the right inclined surface 321 and the left inclined surface 521, the tightening block 3 moves upward and rightward, and the upper tightening portion 3a passes through the upper through hole 21a, and the right tightening portion 3b passes through the right through hole 21b, so that they are tightened with the inner wall of the inserting tube 10 at the rear of the vehicle respectively, to make up the gap between the connecting pipe 2 and the inserting tube 10, and ensure that the connecting pipe 2 and the inserting tube 10 are tightly fitted together.

[0035] The axial direction is the length direction along the connecting pipe, which is the front-to-back direction in this embodiment, and the X direction as shown in the figure. The longitudinal direction is the direction perpendicular to the axial direction, which is the up-down direction and / or the left-right direction in this embodiment.

[0036] It should be noted that in the description of this embodiment, the terms "front, rear", "left, right", "up, down", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. The terms "install", "connect", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A vehicle-mounted rack that can be securely connected to a vehicle, comprising a frame (1) for placing a bicycle, the frame (1) being provided with a connecting pipe (2) for connecting to the vehicle; the characteristics are: A tension block (3) capable of longitudinal movement and a driving block (5) capable of axial movement are constrained in the connecting tube (2); a through hole (21) for the tension block (3) to extend out is provided on the tube wall of the connecting tube (2); the driving block (5) and the tension block (3) are in oblique contact with each other, so that the axial movement of the driving block (5) can push the tension block (3) to move longitudinally to adjust the extent to which the tension block (3) extends out of the through hole (21).

2. The vehicle-mounted bracket that can be securely connected to a vehicle according to claim 1 is characterized in that: The connecting tube (2) has two through holes (21), namely an upper through hole (21a) located on the top wall of the connecting tube (2) and a right through hole (21b) located on the right wall of the connecting tube (2); the tensioning block (3) has an upper tensioning portion (3a) extending upward and passing through the upper through hole (21a), and a right tensioning portion (3b) extending rightward and passing through the right through hole (21b).

3. The vehicle-mounted bracket that can be securely connected to a vehicle according to claim 2 is characterized in that: The driving block (5) has a lower inclined surface (511) and a left inclined surface (521); the tensioning block (3) has an upper inclined surface (311) that contacts and slides with the lower inclined surface (511), and a right inclined surface (321) that contacts and slides with the left inclined surface (521).

4. The vehicle-mounted bracket that can be securely connected to a vehicle according to claim 3 is characterized in that: The right side of the driving block (5) has a first wall (51) extending upward, the top surface of the first wall (51) is a lower inclined surface (511), and the left side of the driving block has a second wall (52) extending rightward, the side surface of the second wall (52) is a left inclined surface (521).

5. The vehicle-mounted bracket that can be securely connected to a vehicle according to claim 4 is characterized in that: A lower guide groove (31) is provided at the bottom of the tension block (3), and the groove bottom of the lower guide groove (31) constitutes the upper inclined surface (311); a side guide groove (32) is provided on the left side of the tension block, and the groove bottom of the side guide groove (32) constitutes the right inclined surface (321).

6. The vehicle-mounted bracket that can be securely connected to a vehicle according to claim 1 is characterized in that: The connecting tube (2) is a square tube, the tensioning block (3) is arranged above the driving block (5), the top surface of the driving block (5) is a lower inclined surface (511), the bottom surface of the tensioning block (3) is an upper inclined surface (311), the through hole (21) is an upper through hole (21a) located on the top wall of the connecting tube (2), and the top surface of the tensioning block (3) has an upper tensioning portion (3a) extending upward and passing through the upper through hole (21a).

7. The vehicle-mounted bracket capable of being securely connected to a vehicle according to any one of claims 1 to 6, characterized in that: A driving rod (6) capable of rotating around its own axis is constrained on the frame (1), and the driving rod (6) is threadedly connected to the driving block (5).

8. The vehicle-mounted bracket capable of being securely connected to a vehicle according to claim 7, characterized in that: The frame (1) comprises a main frame (1a) and a rear frame (1b), wherein the rear frame (1b) is connected to the rear end of the main frame (1a), the connecting pipe (2) is fixed to the back plate of the rear frame (1b), and the driving rod (6) is passed through the back plate of the rear frame (1b).

9. The vehicle-mounted bracket capable of being securely connected to a vehicle according to claim 8, characterized in that: The side wall of the connecting tube (2) is provided with a first pin hole (22); a latch pin (7) capable of sliding left and right is constrained on the back plate of the rear frame (1b); the latch pin (7) is arranged beside one side of the connecting tube (2); the end of the latch pin (7) has a locking portion (71) bent toward the connecting tube (2) and used for inserting into the first pin hole (22); the latch pin (7) is acted upon by a spring (4) so ​​that the locking portion (71) of the latch pin (7) has a tendency to be inserted into the first pin hole (22).

10. The vehicle-mounted bracket capable of being securely connected to a vehicle according to claim 9, characterized in that: A guide rod (8) extending in the left and right directions is provided at the front end of the latch (7); a cover (9) is fixed on the back plate of the rear frame (1b); the guide rod (8) is passed through the cover (9) and the side wall of the connecting pipe (2) so as to be movable left and right; the spring (4) is sleeved on the guide rod (8) and acts on the latch (7); and a guide groove (91) is provided at the front end of the cover (9) for the latch (7) to pass through and slide.

Images