Safety frame for tractor

Abstract

The utility model discloses the technical field of tractors, and particularly relates to a safety frame for a tractor, which comprises two vertically-arranged circular-tube-shaped first frame bodies and an inverted-U-shaped circular-tube-shaped second frame body located at the top ends of the two first frame bodies, and two folding devices are symmetrically arranged between the top ends of the first frame bodies and the second frame body. The second frame body is rotationally installed at the top ends of the two first frame bodies through the two folding devices, the two first frame bodies are provided with [-shaped side frames capable of rotating around the two first frame bodies, and the two side frames are fixed to the first frame bodies through the two symmetrically-arranged limiting devices respectively. The safety frame for the tractor can be folded more conveniently and quickly, the longitudinal occupied space is reduced, and the tractor can be better parked. Meanwhile, the left side face and the right side face of the driver can be protected, when the tractor turns on one side, a self-rescue and danger-escape space can be created for the driver no matter the tractor turns on one side on the left or on the right or on the front or back, and life danger of the driver is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of tractors, in particular to a safety frame for tractors. Background Art

[0002] Tractors can pull and drive other working machines, so they are widely used in production activities such as agriculture and industry that require the use of large working machines. In order to prevent the driver from being injured by the tractor tipping over or flipping over, a safety rack is usually installed on a tractor without a roof. The safety rack can create a space for the driver to save himself and escape from danger, ensuring the driver's life safety. In addition, the safety rack can also reduce the damage to the tractor in the event of an accident.

[0003] Tractor safety racks are often too high to be accessible in some areas, which delays transportation progress. When the tractor is idle, the safety rack also limits its placement space, which is not conducive to daily parking. Therefore, in the prior art, a mounting seat is usually set on the safety rack, and a rotating bolt is set in the mounting seat to provide rotation for the safety rack and fold the safety rack. However, using bolts to fold the safety rack is cumbersome and time-consuming, and tractors are mostly parked outdoors, and the bolts are prone to rust, which affects their use.

[0004] At the same time, the existing safety frame only protects the front and back of the driver, ignoring the protection of the sides. The overturning of the tractor still poses a certain safety threat to the driver. Summary of the invention

[0005] The utility model aims to solve the above problems and provide a tractor safety frame which can be more conveniently folded and can protect the sides.

[0006] To achieve the above-mentioned purpose, the utility model discloses a safety frame for a tractor, which comprises two vertically arranged circular tubular first frames and an inverted U-shaped circular tubular second frame located at the top of the two first frames, characterized in that two folding devices are symmetrically arranged between the top of the two first frames and the second frame, the second frame is rotatably mounted on the top of the two first frames through the two folding devices, and the two first frames are mounted with U-shaped side frames that can rotate around them, and the two side frames are respectively fixed to the first frames through two symmetrically arranged limiting devices. This safety frame for a tractor can be folded more conveniently and quickly, and at the same time, the protection on the left and right sides is strengthened.

[0007] Preferably, the second frame includes a horizontally arranged crossbar and vertical rods arranged vertically at both ends of the crossbar, the ends of the two vertical rods away from the crossbar are respectively connected to the tops of the two first frames, and the two folding devices are respectively arranged between the corresponding first frames and the vertical rods. The second frame can create a space for the driver to save himself and escape when the tractor flips forward or backward, so as to prevent the driver from being in danger of life.

[0008] Preferably, the folding device comprises a vertically arranged connecting block, the connecting block is mounted on the top of the first frame, a rotating opening adapted to the connecting block is opened upward on the side wall at the bottom end of the vertical rod, the rotating opening is arranged to be open front and back, a rotating shaft horizontally arranged along the left and right directions is fixedly connected in the rotating opening, a rotating hole adapted to the rotating shaft is opened along the left and right directions on the connecting block, and the connecting block is rotatably connected to the rotating shaft through the rotating hole. The folding device folds the safety frame quickly and conveniently when the tractor is not in use, reduces the space occupied by the safety frame in the longitudinal direction, and facilitates the parking of the tractor.

[0009] Preferably, the two vertical rods are sleeved with a fixing sleeve that can move along the length direction thereof, the lower end of the inner side wall of the fixing sleeve is provided with an internal thread, and the outer surface of the upper end of the two first frames is provided with an external thread matching the internal thread, and when the fixing sleeve is sleeved on the outside of the folding device, the internal thread is threadedly connected with the external thread, at which time the upper end of the fixing sleeve is located above the rotating opening, and the second frame is arranged upward. The fixing sleeve can fix the safety frame during the driving process of the tractor, so that the safety frame is supported and arranged vertically to protect the safety of the driver.

[0010] Preferably, when the fixing sleeve is completely moved upward to the first frame, the internal thread is not connected to the external thread, and the lower end of the fixing sleeve is located above the folding device, and the second frame can rotate around the first frame. When the tractor is not working, it is convenient to fold the safety frame. The setting of the fixing sleeve makes it more convenient to fold or vertically erect the safety frame, reducing the need to repeatedly disassemble the bolts when folding the traditional safety frame, and the operation is faster.

[0011] Preferably, the two first frames are each provided with a rotating rod, and the open ends of the two side frames are respectively fixedly connected to the two rotating rods. The side frames provide left and right protection for the driver, and when the tractor flips left and right, the driver is provided with space for self-rescue and escape, thereby preventing the driver from being in danger of life.

[0012] Preferably, the limiting device includes a fixing rod, which is located at the lower end of the rotating rod and is arranged vertically downward. The lower end of the first frame is connected to a fixing block. The upper surface of the fixing block is downwardly provided with a fixing groove that is compatible with the fixing rod. The fixing rod is inserted into the fixing groove. The limiting device allows the side frame to be opened and closed more quickly, making it convenient for the driver to get on and off the tractor.

[0013] Preferably, the upper end and the lower end of the side wall of the first frame body are respectively provided with an upper slide groove and a lower slide groove vertically arranged up and down, and the upper ends of the upper slide groove and the lower slide groove are both provided with an arc-shaped upper notch and a lower notch communicating therewith along the circumference of the first frame body, and when the side frame is fully lifted upward, the upper horizontal rod of the side frame can be slidably arranged in the upper slide groove and the upper notch, and the lower horizontal rod of the side frame can be slidably arranged in the lower slide groove and the lower notch, so that the side frame can be smoothly opened and closed, which is convenient for the driver to get on and off the vehicle and can protect it at the same time.

[0014] Preferably, when the fixing rod is fully inserted into the fixing groove, the upper end of the rotating rod is located above the upper notch, so that the rotating rod is more stable.

[0015] Preferably, the lower surfaces of the two first frames are connected with horizontally arranged mounting plates to facilitate the installation of the safety frame.

[0016] In summary, the beneficial effects of the utility model are: the tractor safety frame can be folded more conveniently and quickly, reducing the space occupied longitudinally and better parking the tractor. At the same time, it can protect the left and right sides of the driver, and can create space for the driver to save himself and escape from danger, whether it is a left-right rollover or a front-back rollover, to prevent the driver from being in danger of life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a right side schematic diagram of the utility model;

[0019] Figure 3 It is a top view schematic diagram of the utility model;

[0020] Figure 4 yes Figure 3 Sectional view along AA direction;

[0021] Figure 5 yes Figure 3 Middle section view along BB direction;

[0022] Figure 6 yes Figure 5 Sectional view along CC direction;

[0023] Figure 7 It is a schematic diagram of the second frame of the utility model in a folded state.

[0024] In the figure: 1, the first frame body; 2, the second frame body; 201, the cross bar; 202, the vertical bar; 3, the side frame; 4, the connecting block; 5, the rotating opening; 6, the mounting plate; 7, the rotating shaft; 8, the rotating hole; 9, the fixed sleeve; 10, the internal thread; 11, the external thread; 12, the upper sliding groove; 13, the rotating rod; 14, the fixed rod; 15, the fixed groove; 16, the upper notch; 17, the lower notch; 18, the lower sliding groove; 19, the fixed block. Detailed implementation manners

[0025] The following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0026] The following is a description of the preferred embodiments of the present utility model in conjunction with the drawings.

[0027] Refer to the attached Figure 1 , 2 , a safety frame for a tractor, includes two vertically arranged circular tubular first frame bodies 1 and an inverted U-shaped circular tubular second frame body 2 located at the top ends of the two first frame bodies 1. Two folding devices are symmetrically arranged between the top ends of the two first frame bodies 1 and the second frame body 2. The second frame body 2 is rotatably installed at the top ends of the two first frame bodies 1 through the two folding devices. Two rotatable C-shaped side frames 3 are installed on the two first frame bodies 1, and the two side frames 3 are respectively fixed to the first frame body 1 through two symmetrically arranged limiting devices.

[0028] Refer to the attached Figure 1 , the second frame body 2 includes a horizontally arranged cross bar 201 and vertical bars 202 vertically arranged at both ends of the cross bar 201. The ends of the two vertical bars 202 far from the cross bar 201 are respectively connected to the top ends of the two first frame bodies 1. The two folding devices are respectively arranged between the corresponding first frame body 1 and the vertical bar 202.

[0029] Refer to the attached Figure 1 , 4 , the folding device includes a vertically arranged connecting block 4. The connecting block 4 is installed at the top end of the first frame body 1. A rotating opening 5 adapted to the connecting block 4 is upwardly opened on the side wall of the bottom end of the vertical bar 202. The rotating opening 5 is provided with front and rear openings. A horizontally arranged rotating shaft 7 is fixedly connected in the rotating opening 5 along the left-right direction. A rotating hole 8 adapted to the rotating shaft 7 is opened in the connecting block 4 along the left-right direction. The connecting block 4 is rotatably connected to the rotating shaft 7 through the rotating hole 8, driving the second frame body 2 to rotate, so that it can be folded forward or backward, reducing the longitudinally occupied space. The upper end of the connecting block 4 is arc-shaped. The height of the rotating opening 5 is greater than the height of the connecting block 4. The connecting block 4 is fixedly connected to the left and right side walls of the rotating opening 5, so that the second frame body 2 can rotate more smoothly.

[0030] See attached Figure 4 , the two vertical rods 202 are sleeved with fixed sleeves 9 that can move along their length direction, the lower end of the inner side wall of the fixed sleeve 9 is provided with an internal thread 10, and the outer surface of the upper end of the two first frames 1 is provided with an external thread 11 that matches the internal thread 10. When the fixed sleeve 9 is sleeved on the outside of the folding device, the internal thread 10 is threadedly connected with the external thread 11. At this time, the upper end of the fixed sleeve 9 is located above the rotating port 5, and the second frame 2 is set upward. The fixed sleeve 9 can move up and down along the vertical rod 202. When the tractor is in working state, the safety frame needs to be erected. At this time, the fixed sleeves 9 on both sides are moved downward. When they move to the external thread 11 of the first frame 1, the fixed sleeve 9 is screwed so that the internal thread 10 is threadedly connected with the external thread 11. At this time, the lower end of the fixed sleeve 9 is fixed on the first frame 1, and the upper end is located above the rotating groove 6, connecting the first frame 1 with the two second frames 2, and the second frames 2 extend upward, that is, the crossbar 201 is at the highest end at this time.

[0031] See attached Figure 4 , 7 When the fixing sleeve 9 is completely moved upward to the first frame 1, the internal thread 10 is not connected to the external thread 11, and the lower end of the fixing sleeve 9 is located above the folding device, and the second frame 2 can rotate around the first frame 1. When the tractor is not in operation, the fixing sleeve 9 installed on the vertical rod 202 and the first frame 1 is twisted upward so that the internal thread 10 and the external thread 11 are no longer threadedly connected, and the fixing sleeve 9 is moved upward until it is completely located on the vertical rod 202. At this time, the second frame 2 is moved forward or backward, and the second frame 2 rotates around the rotation axis 7 to be folded.

[0032] See attached Figure 5 , 6, a rotating rod 13 is provided in each of the two first frames 1, and the open ends of the two side frames 3 are fixedly connected to the two rotating rods 13 respectively. The limiting device includes a fixing rod 14, which is located at the lower end of the rotating rod 13 and is vertically arranged downward. A fixing block 19 is connected to the lower end of the first frame 1, and a fixing groove 15 adapted to the fixing rod 14 is opened downward on the upper surface of the fixing block 19, and the fixing rod 14 is inserted into the fixing groove 15. The upper end and lower end of the side wall of the first frame 1 are respectively provided with an upper slide groove 12 and a lower slide groove 18 vertically arranged up and down, and the upper ends of the upper slide groove 12 and the lower slide groove 18 are both provided with an arc-shaped upper notch 16 and a lower notch 17 communicating with the first frame 1 along the circumference of the first frame 1. When the side frame 3 is fully lifted upward, the upper horizontal rod of the side frame 3 can be slidably arranged in the upper slide groove 12 and the upper notch 16, and the lower horizontal rod of the side frame 3 can be slidably arranged in the lower slide groove 18 and the lower notch 17. The heights of the upper chute 12 and the lower chute 18 are higher than the height of the fixing rod 14, so when the side frame 3 is lifted up, the fixing rod 14 can be separated from the fixing groove 15, and the side frame 3 can rotate smoothly. The upper notch 16 and the lower notch 17 as well as the upper chute 12 and the lower chute 18 are arranged correspondingly up and down, and the notch sizes of the upper notch 16 and the lower notch 17 match when the side frame 3 is closed and opened, so as to ensure that the side frame 3 can be opened and closed smoothly. When the side frame 3 needs to be opened, the side frame 3 is lifted up, and the upper and lower horizontal rods of the side frame 3 move to the top along the upper chute 12 and the lower chute 18 respectively, and then move along the upper notch 16 and the lower notch 17, and the side frame 3 can be opened. After the driver gets on the car, he moves to the original position along the upper notch 16 and the lower notch 17 as well as the upper chute 12 and the lower chute 18, and the fixing rod 14 is inserted into the fixing groove 15 to fix the side frame 3. The polygonal arrangement of the fixing rod 14 and the fixing groove 15 makes it more stably fixed.

[0033] See attached Figure 5 When the fixing rod 14 is fully inserted into the fixing groove 15, the upper end of the rotating rod 13 is located above the upper notch 16, so that the installation of the rotating rod 13 is more stable.

[0034] See attached Figure 2 The lower surfaces of the two first frames 1 are connected with horizontally arranged mounting plates 6. The safety frame is mounted on the tractor through the mounting plates 6, and bolt holes may be provided on the mounting plates 6, which are connected by bolts or directly welded.

[0035] See attached Figure 1 , 4When using this tractor safety frame, install it on the tractor frame through the mounting plate 618, pull up the left or right side frame 3, the fixing rod 14 is disengaged from the fixing groove 15, and the side frame 3 is opened outward. After the driver enters the driver's seat, pull up the side frame 3 again, close the side frame 3 inward, and insert the fixing rod 14 into the fixing groove 15 so that the side frame 3 can be fixed. When the tractor is not working, screw the fixing sleeves 9 on both sides upward so that they are completely located on the vertical rod 202, rotate the second frame 2 backward, and fold the second frame 2 to reduce the longitudinal occupied space. When the tractor is working, screw the fixing sleeve 9 downward so that the internal thread 10 is threadedly connected with the external thread 11, and the two first frames 1 and the second frame 2 are connected.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A safety frame for a tractor, comprising two vertically arranged circular tubular first frames (1) and an inverted U-shaped circular tubular second frame (2) located at the top ends of the two first frames (1), characterized in that: Two folding devices are symmetrically arranged between the tops of the two first frames (1) and the second frame (2). The second frame (2) is rotatably installed at the tops of the two first frames (1) through the two folding devices. Two U-shaped side frames (3) that can rotate around them are installed on the two first frames (1). The two side frames (3) are respectively fixed to the first frame (1) through two symmetrically arranged limiting devices.

2. The tractor safety frame according to claim 1, characterized in that: The second frame (2) includes a horizontally arranged cross bar (201) and vertical rods (202) vertically arranged at both ends of the cross bar (201). The ends of the two vertical rods (202) far from the cross bar (201) are respectively connected to the tops of the two first frames (1). The two folding devices are respectively arranged between the corresponding first frame (1) and the vertical rod (202).

3. The tractor safety frame according to claim 2, characterized in that: The folding device includes a vertically arranged connecting block (4). The connecting block (4) is installed at the top of the first frame (1). A rotating opening (5) adapted to the connecting block (4) is upwardly opened on the side wall of the bottom end of the vertical rod (202). The rotating opening (5) is provided with front and rear openings. A rotating shaft (7) horizontally arranged in the left-right direction is fixedly connected in the rotating opening (5). A rotating hole (8) adapted to the rotating shaft (7) is opened in the connecting block (4) in the left-right direction. The connecting block (4) is rotatably connected to the rotating shaft (7) through the rotating hole (8).

4. The tractor safety frame according to claim 3, characterized in that: Fixing sleeves (9) that can move along their lengths are sleeved outside the two vertical rods (202). Internal threads (10) are provided at the lower ends of the inner side walls of the fixing sleeves (9). External threads (11) matching the internal threads (10) are provided on the outer surfaces of the upper ends of the two first frames (1). When the fixing sleeve (9) is sleeved outside the folding device, the internal thread (10) is threadedly connected to the external thread (11). At this time, the upper end of the fixing sleeve (9) is located above the rotating opening (5), and the second frame (2) is arranged upward.

5. The tractor safety frame according to claim 4, characterized in that: When the fixing sleeve (9) completely moves upward to the first frame (1), the internal thread (10) is not connected to the external thread (11). At this time, the lower end of the fixing sleeve (9) is located above the folding device, and the second frame (2) can rotate around the first frame (1).

6. The tractor safety frame according to claim 1, characterized in that: Rotating rods (13) are arranged inside the two first frames (1). The open ends of the two side frames (3) are respectively fixedly connected to the two rotating rods (13).

7. The tractor safety frame according to claim 1, characterized in that: The limiting device includes a fixed rod (14). The fixed rod (14) is located at the lower end of the rotating rod (13) and is vertically arranged downward. A fixed block (19) is connected to the lower end of the first frame (1). A fixed groove (15) adapted to the fixed rod (14) is downwardly opened on the upper surface of the fixed block (19). The fixed rod (14) is inserted into the fixed groove (15).

8. The tractor safety frame according to claim 7, characterized in that: The upper end and lower end of the side wall of the first frame body (1) are respectively provided with an upper slide groove (12) and a lower slide groove (18) vertically arranged up and down, and the upper ends of the upper slide groove (12) and the lower slide groove (18) are both provided with an arc-shaped upper notch (16) and a lower notch (17) communicating with the first frame body (1) along the circumference of the first frame body (1). When the side frame (3) is fully lifted upward, the upper horizontal rod of the side frame (3) can be slidably arranged in the upper slide groove (12) and the upper notch (16), and the lower horizontal rod of the side frame (3) can be slidably arranged in the lower slide groove (18) and the lower notch (17).

9. The tractor safety frame according to claim 7, characterized in that: When the fixing rod (14) is fully inserted into the fixing groove (15), the upper end of the rotating rod (13) is located above the upper notch (16).

10. The tractor safety frame according to claim 1, characterized in that: The lower surfaces of the two first frames (1) are both connected with a horizontally arranged mounting plate (6).

Images