Roll-over stand linkage box body lock for pull arm

Abstract

The utility model relates to the field of hoisting equipment, and particularly discloses a turnover frame linkage box body lock for a pull arm, the turnover frame linkage box body lock comprises a lifting frame, a turnover frame, a locking matching piece and a box body locking block, the lifting frame is used for bearing a box body and is matched with other power mechanisms to drive the box body to ascend and descend, the turnover frame is rotationally arranged on the lifting frame, and the turnover frame is in linkage with the pull arm; the pull arm rotates along with the action of the pull arm; the locking matching piece is rotationally arranged on the lifting frame and is in linkage with the overturning frame, the box body locking block is fixed to the bottom of the box body, and when the box body is hooked to the lifting frame through the pull arm, the box body locking block at the bottom of the box body stretches into the limiting groove. The device has the advantages of convenience in use and low cost.

Description

Technical Field

[0001] The present application relates to the field of lifting equipment, and particularly to a linkage box lock for a tipping frame of a pulling arm. Background Art

[0002] The pulling-arm type self-loading and unloading device is a special working device, usually installed on a special vehicle, and realizes functions such as loading, unloading, lifting and transporting of the box through the rotation, sliding or swinging of the pulling hook arm. This device is widely used in the fields of environmental sanitation, logistics, etc., and particularly plays an important role in the loading and unloading operations of roll-off garbage trucks.

[0003] After the roll-off garbage truck fixes the box to the pulling-arm hook device, it is required that the box locking mechanism can firmly lock the box and maintain the stability of the carriage during the vehicle driving. Most of the box locking mechanisms of the common pulling-arm hook devices are hydraulic locking mechanisms, which require the driver to perform separate control and operation, and require a corresponding hydraulic and electric control interlock system, resulting in a high cost. Utility Model Content

[0004] In order to more conveniently lock the box, the present application provides a linkage box lock for a tipping frame of a pulling arm, which uses a mechanical structure to fix the box and has the advantages of convenient use and low cost.

[0005] The linkage box lock for a tipping frame of a pulling arm provided by the present application adopts the following technical solutions:

[0006] A linkage box lock for a tipping frame of a pulling arm includes a lifting frame, a tipping frame and a locking fitting. The tipping frame is rotatably arranged on the lifting frame and rotates following the movement of the pulling arm. The locking fitting is arranged on the lifting frame and is linked with the tipping frame. The locking fitting forms a limiting groove, and a box lock block is arranged at the bottom of the box. When the pulling arm hooks the box onto the lifting frame: the tipping frame is horizontal, and the box lock block is inserted and matched with the limiting groove.

[0007] By adopting the above technical solutions, the limiting groove is used to limit the box lock block, and then the position of the box is locked, preventing the box from shaking greatly during the vehicle movement, effectively improving the stability of the box; the mechanical structure is used for locking, which is convenient and stable and reliable to implement, and there is no need to set a hydraulic and electric control system, reducing the implementation cost; in addition, the linkage structure of the locking fitting and the tipping frame can effectively avoid interference between the two during the rotation process, and prevent the locking fitting from affecting the normal rotation of the tipping frame to ensure the normal hooking of the box.

[0008] Optionally, the box lock block is of an L-shaped structure. One end of the L-shaped structure of the box lock block is fixed to the box, and the other end is inserted and matched with the limiting groove.

[0009] By adopting the above technical solution, the box lock block with an L-shaped structure is more convenient for the limiting groove to achieve plug-in fit, optimizing the structural layout and improving the fitting accuracy.

[0010] Optionally, when the pulling arm hooks the box body onto the lifting frame, the opening direction of the limiting groove is horizontal.

[0011] By adopting the above technical solution, the horizontal notch is more convenient for the box lock block to be inserted from one side, and the implementation is more convenient.

[0012] Optionally, the lifting frame includes a cross bar and two side arms. The two side arms are arranged in parallel, the cross bar is vertically fixed between the two side arms, and a mounting shaft is rotatably arranged between the two side arms. The turning frame is fixed to the side wall of the mounting shaft.

[0013] By adopting the above technical solution, the turning installation of the turning frame is realized by using the mounting shaft. The mounting shaft forms a stable connection with the two side arms, which can ensure the stability of the turning frame during the turning process.

[0014] Optionally, the locking and fitting member includes a main body and two connecting parts. The connecting parts are formed on both sides of the main body, and the two connecting parts are respectively rotatably connected to the two side arms. The limiting groove is opened on the main body.

[0015] By adopting the above technical solution, by respectively connecting the two connecting parts to the two side arms, the forces on both sides of the locking and fitting member are evenly distributed, providing stability during rotation.

[0016] Optionally, a pin shaft is rotatably arranged on both of the side arms, and the pin shaft penetrates through the side arms. The connecting part includes two connecting plates, and the two connecting plates respectively extend to both sides of the side arms and are respectively connected to both ends of the pin shaft.

[0017] By adopting the above technical solution, the two connecting plates are respectively connected to both sides of the side arm, further improving the connection strength between the locking and fitting member and the side arm, and the installation is convenient and easy to implement.

[0018] Optionally, it further includes two connecting rods. One end of each of the two connecting rods is provided with a hinge hole. Two hinge columns are respectively fixed on one side where the two connecting parts are close to each other. The two hinge columns respectively extend into the two hinge holes and form hinges. The ends of the two connecting rods far from the hinge holes are rotatably connected to the turning frame.

[0019] By adopting the above technical solution, by respectively hinging both ends of the connecting rod to the turning frame and the locking and fitting member, the rotational linkage between the turning frame and the locking and fitting member is realized, so as to avoid the coincidence of their positions and affect the normal rotation of the turning frame.

[0020] Optionally, the hinge hole is an oblong hole.

[0021] By adopting the above technical solution, the articulated column has some moving space in the articulated hole, so as to avoid jamming of the linkage structure and improve the smoothness of the rotation of the locking fitting.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The limiting groove is used to limit the box body lock block, and then lock the position of the box body, preventing the box body from shaking greatly during the movement of the vehicle, effectively improving the stability of the box body; the mechanical structure locking is convenient to implement, stable and reliable, without setting hydraulic and electric control systems, reducing the implementation cost; in addition, the linkage structure of the locking fitting and the turnover frame can effectively avoid interference between the two during rotation, preventing the locking fitting from affecting the normal rotation of the turnover frame to ensure the normal hooking of the box body;

[0024] 2. By connecting the two connecting plates to both sides of the side arm respectively, the connection strength between the locking fitting and the side arm is further improved, and the installation is convenient and easy to implement;

[0025] 3. By hinging both ends of the connecting rod to the turnover frame and the locking fitting respectively, the rotational linkage between the turnover frame and the locking fitting is realized, so as to avoid the coincidence of their positions and affect the normal rotation of the turnover frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0027] Figure 2 is Figure 1 the enlarged view at A in

[0028] Figure 3 is a schematic diagram showing the folded state of the turnover frame in an embodiment of the present application.

[0029] Reference numerals: 1, lifting frame; 11, cross bar; 12, side arm; 13, mounting shaft; 2, turnover frame; 3, locking fitting; 31, main body; 32, connecting part; 321, connecting plate; 322, pin shaft; 4, box body lock block; 5, limiting groove; 6, connecting rod; 61, articulated hole; 62, articulated column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following is a further detailed description of the present application in conjunction with the attached Figures 1 - 3 drawings.

[0031] An embodiment of the present application discloses a linkage box body lock for a turnover frame of a pulling arm. Refer to Figures 1 - 3, including a lifting frame 1, a tipping frame 2, a locking fitting 3 and a box body lock 4. The lifting frame 1 is used to carry the box body and cooperate with other power mechanisms to drive the box body to lift and lower. The tipping frame 2 is rotatably arranged on the lifting frame 1, and the tipping frame 2 is linked with the pulling arm and rotates following the movement of the pulling arm; the locking fitting 3 is rotatably arranged on the lifting frame 1 and is linked with the tipping frame 2. The box body lock 4 is fixed to the bottom of the box body. Moreover, when the pulling arm hooks the box body onto the lifting frame 1, the box body lock 4 located at the bottom of the box body extends into the limiting groove 5 and is in plug-in fit with the limiting groove 5.

[0032] During specific use, when the pulling arm rotates towards the box body to be hooked, it drives the tipping frame 2 and the locking fitting 3 to rotate synchronously on the lifting frame 1. After the pulling arm hooks the box body, it starts to rotate in the opposite direction, and the tipping frame 2 and the locking fitting 3 rotate in the corresponding reverse direction. After the movement of the pulling arm is completed, the box body is located on the lifting frame 1, and the box body lock 4 at the bottom of the box body is inserted into the limiting groove 5. The side wall of the limiting groove 5 forms a limiting effect on the box body lock 4, thereby locking the box body and improving the stability of the box body during vehicle driving.

[0033] In this embodiment, two limiting grooves 5 are provided, and two box body locks 4 are correspondingly arranged at the bottom of the box body.

[0034] Specifically, referring to Figure 1 and Figure 2 , the lifting frame 1 includes a cross bar 11 and two side arms 12. The two side arms 12 are arranged parallel to each other. The two ends of the cross bar 11 are respectively fixed to the two side arms 12 and are perpendicular to the two side arms 12. The cross bar 11 and the two side arms 12 cooperate to form a frame structure for installing other components.

[0035] Referring to Figure 1 and Figure 2 , a mounting shaft 13 is rotatably arranged between the two side arms 12. The two ends of the mounting shaft 13 are located inside the side arms 12 and are rotatably matched with the side arms 12. One end of the tipping frame 2 is fixed to the side arm 12 of the mounting shaft 13, and the tipping frame 2 rotates around the axis of the mounting shaft 13.

[0036] Furthermore, referring to Figure 1 and Figure 2 , the locking fitting 3 includes a main body 31 and two connecting parts 32. The two connecting parts 32 are integrally formed on both sides of the main body 31 and form an approximately U-shaped structure. The two connecting parts 32 are respectively rotatably connected to the two side arms 12, and the limiting groove 5 is provided on the main body 31. Since the position of the locking fitting 3 is on the tipping path of the tipping frame 2, by rotatably arranging the locking fitting 3 and linking it with the tipping frame 2, when the tipping frame 2 rotates, the locking fitting 3 rotates synchronously, and the two do not interfere with each other to ensure that the pulling arm can normally hook the box body.

[0037] Referring to Figure 1, the box body lock block 4 is of an L-shaped structure. One end of its L-shaped structure is fixed to the box body, and the other end is inserted and matched with the limiting groove 5. When the pulling arm hooks the box body onto the lifting frame 1, the notch of the limiting groove 5 faces horizontally. One end of the box body lock block 4 is inserted into the limiting groove 5 along the horizontal direction, which can effectively prevent the box body from shaking greatly during transportation and improve the stability of the box body.

[0038] Further, referring to Figure 1 and Figure 2 , the connecting portion 32 includes two connecting plates 321. The two connecting plates 321 respectively extend to both sides of the side arm 12. At the same time, pin shafts 322 are rotatably arranged on both side arms 12, and the pin shafts 322 penetrate through the side arms 12. The connecting plates 321 located on both sides of the side arm 12 are respectively fixed to both ends of the pin shafts 322 to form a rotational connection structure, and the structure is simple and stable.

[0039] Referring to Figure 2 , a connecting rod 6 is arranged between the turning frame 2 and the locking and matching member 3. In this embodiment, two connecting rods 6 are provided. One end of each of the two connecting rods 6 is provided with a hinge hole 61. Hinge columns 62 are fixed on both connecting plates 321 located between the two side arms 12, and the two hinge columns 62 are located on the side where the two connecting plates 321 are close to each other. The two hinge columns 62 respectively extend into the two hinge holes 61 to rotatably connect the connecting rod 6 with the locking and matching member 3; at the same time, the ends of the two connecting rods 6 far from the hinge holes 61 are rotatably connected to the turning frame 2. When the turning frame 2 rotates, the connecting rod 6 drives the locking and matching member 3 to rotate synchronously, realizing the linkage between the two.

[0040] Further, referring to Figure 2 , the hinge hole 61 is an oval hole, and the hinge column 62 has a moving space in the hinge hole 61 to avoid jamming of the linkage structure and improve the smoothness of the rotation of the locking and matching member 3.

[0041] The implementation principle of a turning frame of a pulling arm linked with a box body lock disclosed in the embodiment of the present application is as follows:

[0042] During hooking, the pulling arm moves towards the box body to be hooked, synchronously driving the turning frame 2 and the locking and matching member 3 to rotate towards the box body. The two rotate synchronously without interference;

[0043] After the pulling arm hooks the box body, the pulling arm moves in the reverse direction, driving the turning frame 2 and the locking and matching member 3 to rotate in the opposite direction, and hooking the box body above the lifting frame 1. At this time, the locking and matching member 3 is located at the bottom of the box body, and the box body lock block 4 at the bottom of the box body is inserted into the limiting groove 5 to limit the box body and improve the stability of the box body during transportation.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A box lock linked to a flip frame for a pull arm, characterized in that: The utility model comprises a lifting frame (1), a tilting frame (2) and a locking fitting (3), wherein the tilting frame (2) is rotatably arranged on the lifting frame (1) and rotates following the movement of the pulling arm, the locking fitting (3) is arranged on the lifting frame (1) and is linked to the tilting frame (2), the locking fitting (3) forms a limiting groove (5), and a box body locking block (4) is arranged at the bottom of the box body; When the pulling arm hooks the box onto the lifting frame (1), the turning frame (2) is horizontal, and the box locking block (4) is plugged into and matched with the limiting groove (5).

2. A box lock linked to a flip frame for a pull arm according to claim 1, characterized in that: The box body locking block (4) is an L-shaped structure, one end of the L-shaped structure of the box body locking block (4) is fixed to the box body, and the other end is plugged into and matched with the limiting groove (5).

3. The flip frame linked box lock for a pull arm according to claim 1, characterized in that: When the pulling arm hooks the box onto the lifting frame (1), the notch of the limiting groove (5) is oriented horizontally.

4. The flip frame linked box lock for a pull arm according to claim 1, characterized in that: The lifting frame (1) comprises a cross bar (11) and two side arms (12), the two side arms (12) are arranged in parallel, the cross bar (11) is vertically fixed between the two side arms (12), a mounting shaft (13) is rotatably arranged between the two side arms (12), and the flip frame (2) is fixed to the side wall of the mounting shaft (13).

5. The flip frame linked box lock for a pull arm according to claim 4, characterized in that: The locking fitting (3) comprises a main body (31) and two connecting parts (32), wherein the connecting parts (32) are formed on both sides of the main body (31), and the two connecting parts (32) are rotatably connected to the arms (12) on both sides respectively, and the limiting groove (5) is provided on the main body (31).

6. A box lock linked to a flip frame for a pull arm according to claim 5, characterized in that: The two side arms (12) are both rotatably provided with a pin shaft (322), and the pin shaft (322) passes through the side arms (12). The connecting portion (32) includes two connecting plates (321), and the two connecting plates (321) respectively extend to both sides of the side arms (12) and are respectively connected to both ends of the pin shaft (322).

7. The flip frame linked box lock for a pull arm according to claim 5, characterized in that: It also includes two connecting rods (6), one end of each of the two connecting rods (6) is provided with a hinge hole (61), and two connecting parts (32) are located on a side close to each other and are respectively fixed with two hinge columns (62), and the two hinge columns (62) are respectively extended into the two hinge holes (61) to form a hinge, and the ends of the two connecting rods (6) away from the hinge holes (61) are rotatably connected to the flip frame (2).

8. The flip frame linked box lock for a pull arm according to claim 7, characterized in that: The hinge hole (61) is a waist-shaped hole.

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