Adjustable spin lock device

Abstract

The invention relates to an adjustable spin lock device which comprises a lock frame and a locking assembly, the lock frame is rotatably connected with a frame, the lock frame is provided with a containing cavity, and a through hole is formed in the upper side of the containing cavity; the locking assembly is slidably arranged on the lock frame and comprises a lock sleeve and a lock head, the lock sleeve is arranged outside the lock head, the lock head can rotate relative to the lock sleeve, the lock head comprises a main body and a locking part arranged at one end of the main body, and the locking part extends out of one end of the lock sleeve; the device has an initial state and a locking state, when the device is in the initial state, the lock frame and the locking assembly are both contained in the frame, and the locking part of the lock head is located in the containing cavity of the lock frame; in the locking state, the lock frame part and the locking assembly are both located outside the frame, and the locking part of the lock head is located outside the containing cavity of the lock frame. According to the adjustable spin lock device provided by the invention, the width and height dimensions of an engineering vehicle can be effectively reduced, the cost of the engineering vehicle is reduced, and the passing performance of the engineering vehicle under special working conditions is improved.

Description

Technical Field

[0001] The invention relates to an adjustable twist lock device. Background Art

[0002] In traditional container transport engineering vehicles, the locking device is set outside the engineering vehicle. The locking device is large in size, which makes the width and height of the engineering vehicle larger and the cost of the engineering vehicle high. In addition, under some special working conditions, the engineering vehicle cannot pass through and has poor flexibility. Summary of the invention

[0003] The purpose of the present invention is to provide an adjustable rotary lock device for a container transport engineering vehicle.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] An adjustable twist lock device, comprising:

[0006] A lock frame, the lock frame is rotatably connected to the frame, the lock frame has a receiving cavity, and a through hole is formed on the upper side of the receiving cavity;

[0007] A locking assembly, wherein the locking assembly is slidably arranged on the lock frame, the locking assembly comprises a lock sleeve and a lock head, the lock sleeve is arranged outside the lock head, the lock head can rotate relative to the lock sleeve, the lock head comprises a main body, and a locking part arranged at one end of the main body, the locking part extends out of one end of the lock sleeve;

[0008] The device has an initial state and a locking state. When in the initial state, the lock frame and the locking assembly are both accommodated in the frame, and the locking portion of the lock head is located in the accommodating cavity of the lock frame; when in the locking state, the lock frame part and the locking assembly are both located outside the frame, and the locking portion of the lock head is located outside the accommodating cavity of the lock frame.

[0009] According to some implementation aspects of the present invention, a first clamping portion and a second clamping portion are disposed on the outer periphery of the locking sleeve, the first clamping portion and the second clamping portion are disposed along the axial direction of the locking sleeve, and the first clamping portion is closer to the locking portion than the second clamping portion;

[0010] When the device is in an initial state, the first clamping portion is located in the accommodating cavity, a fastener is connected to the lock frame, and the fastener abuts against the first clamping portion;

[0011] When the device is in a locked state, the second clamping portion is located above the through hole, and the second clamping portion abuts against the upper side of the locking frame.

[0012] According to some implementation aspects of the present invention, the locking sleeve includes a first section and a second section connected to each other, the first section and the second section are arranged along the axial direction of the locking sleeve, the width of the first section is greater than the width of the second section, the locking portion extends out of an end of the first section away from the second section, the other end of the main body of the lock head extends out of an end of the second section away from the first section, and the first clamping portion and the second clamping portion are arranged on the outer periphery of the first section.

[0013] According to some implementation aspects of the present invention, the top surface area of ​​the locking portion of the lock head is smaller than the bottom surface area thereof; and the shape of the upper end surface of the lock sleeve is adapted to the shape of the bottom surface of the locking portion of the lock head.

[0014] According to some implementation aspects of the present invention, when the device is in a locked state, the locking assembly has a first position and a second position. When in the first position, the projection surface of the bottom of the locking portion coincides with the projection surface of the top of the locking sleeve; when in the second position, the projection surface of the bottom of the locking portion coincides with the projection surface of the top of the locking sleeve.

[0015] According to some implementation aspects of the present invention, the lock frame includes a fixing portion, an upper support plate, a front support plate, and a rear support plate, the upper support plate is arranged on the upper side of the fixing portion, the upper support plate is provided with the perforation, the front support plate and the rear support plate are respectively arranged on the front and rear sides of the fixing portion, the front support plate and the rear support plate are both located on the lower side of the upper support plate, and the accommodating cavity is formed between the upper support plate, the fixing portion and the front support plate and the rear support plate.

[0016] According to some implementation aspects of the present invention, the lock sleeve is provided with a first hole and a second hole, the first hole and the second hole are distributed along the axial direction of the lock sleeve, and the center lines of the first hole and the second hole are parallel; the lock head is provided with a third hole and a fourth hole, the third hole and the fourth hole are distributed along the axial direction of the lock head, and the center lines of the third hole and the fourth hole are perpendicular; the front support plate and the rear support plate are provided with a corresponding fifth hole, a corresponding sixth hole and a corresponding seventh hole, and the fifth hole, the sixth hole and the seventh hole are arranged in sequence from top to bottom;

[0017] When the device is in an initial state, a fastener is disposed in the seventh hole, and the fastener abuts against the first clamping portion;

[0018] When the device is in a locked state and the locking assembly is in a first position, the first hole, the third hole, and the fifth hole are concentrically arranged, and a first positioning shaft passes through the first hole, the third hole, and the fifth hole in sequence;

[0019] When the device is in a locked state and when the locking assembly is in a second position, the second hole, the fourth hole and the sixth hole are concentrically arranged, and a second positioning shaft passes through the second hole, the fourth hole and the sixth hole in sequence.

[0020] According to some implementation aspects of the present invention, the device further comprises a base, and the other end of the main body of the lock away from the locking portion is connected to the base, and when the device is in an initial state, the base is disposed in the frame.

[0021] According to some implementation aspects of the present invention, the lock frame is rotatably connected to the vehicle frame via a rotating shaft, a connecting plate is provided at one end of the rotating shaft, corresponding mounting holes are provided on the connecting plate and the lock frame, and the lock frame is fixedly connected to the rotating shaft by arranging a fixing member in the mounting hole.

[0022] According to some embodiments of the present invention, the device also includes a support frame, which is arranged on the upper side of the lock frame. The support frame includes a top surface and an annular side surface, and the annular side surface is arranged on the lower side of the top surface. The top surface is perpendicular to the annular side surface and is connected to enclose a accommodating space with an opening at the bottom. The accommodating space is connected to the accommodating cavity of the lock frame, and the accommodating space is used to accommodate the lock sleeve part. The locking part of the lock head is located above the accommodating space, and an opening is provided on the top surface for the lock sleeve to pass through.

[0023] According to some implementation aspects of the present invention, a first flexible pad is provided on the top surface of the support frame, a second flexible pad is provided on one side of the annular side surface of the support frame, and the second flexible pad is located between the support frame and the frame.

[0024] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0025] Compared with traditional container transport engineering vehicles, the adjustable twist lock device provided by the present invention can effectively reduce the width and height dimensions of the engineering vehicle, reduce the cost of the engineering vehicle, and improve the passing performance of the engineering vehicle under special working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Attached Figure 1 A structural diagram of the adjustable rotary lock device provided by the present invention in a locked state;

[0027] Attached Figure 2 For attachment Figure 1 Structural diagram of the middle locking assembly;

[0028] Attached Figure 3 For attachment Figure 1Structural diagram of the middle locking assembly (without support frame);

[0029] Attached Figure 4 A structural diagram of the adjustable rotary lock device provided by the present invention in a locked state (without the frame);

[0030] Attached Figure 5 A structural diagram of a locking assembly of the adjustable rotary lock device provided by the present invention in a locked state;

[0031] Attached Figure 6 A structural diagram of a lock head and a base of the adjustable rotary lock device provided by the present invention in a locked state;

[0032] Attached Figure 7 A structural diagram of a lock head of an adjustable rotary lock device provided by the present invention;

[0033] Attached Figure 8 A structural diagram of a base of an adjustable rotary lock device provided by the present invention;

[0034] Attached Fig. 9 A structural diagram of a lock sleeve of an adjustable rotary lock device provided by the present invention;

[0035] Attached Fig.10 A structural diagram of the adjustable rotary lock device provided by the present invention in an initial state;

[0036] Attached Fig.11 For attachment Fig.10 Structural diagram of the middle locking assembly;

[0037] Attached Fig.12 For attachment Fig.10 Structural diagram of the middle locking assembly;

[0038] Attached Fig.13 For attachment Fig.10 Structural diagram of the middle locking assembly (without the front support plate and the rear support plate);

[0039] Attached Fig.14 A front cross-sectional view of the adjustable rotary lock device provided by the present invention in a locked state;

[0040] Attached Fig.15 A side cross-sectional view of the adjustable rotary lock device provided by the present invention in a locked state;

[0041] Attached Fig.16 A front cross-sectional view of the adjustable twist lock device provided by the present invention in an initial state;

[0042] Attached Fig.17 A structural diagram of the bottom surface of the locking portion and the top surface of the locking sleeve of the adjustable rotary lock device provided by the present invention in a locked state.

[0043] In the above attached figure:

[0044] 1-rotating shaft, 10-oil channel;

[0045] 2-locking frame, 21-fixing part, 22-upper supporting plate, 221-perforation, 23-front supporting plate, rear supporting plate, 231-fifth hole, 232-sixth hole, 233-seventh hole;

[0046] 3-locking head, 31-locking part, 32-main body, 321-third hole, 322-fourth hole;

[0047] 4-locking sleeve, 41-first section, 42-second section, 421-first hole, 422-second hole, 43-first clamping part, 44-second clamping part;

[0048] 5-fastener; 6-fixing piece; 7-first positioning shaft; 8-fastening connector; 9-base, 91-through hole; 11-support frame; 12-first flexible pad; 13-second flexible pad; 14-connecting plate; 15-frame; 16-elastic cylindrical pin; 17-circlip pin; 18-oil nozzle. DETAILED DESCRIPTION

[0049] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0051] See also Figures 1 to 17 An adjustable rotary lock device is provided, comprising a lock frame 2 and a locking assembly, wherein:

[0052] The lock frame 2 is rotatably connected to the vehicle frame 15 via the rotating shaft 1. The lock frame 2 has a receiving cavity. A through hole 221 is formed on the upper side of the receiving cavity. The through hole 221 is connected to the receiving cavity.

[0053] The locking assembly is slidably arranged on the lock frame 2, and the locking assembly can move along the height direction of the accommodating cavity and can pass through the through hole 221; the locking assembly can also be rotatably arranged on the lock frame 2; the locking assembly includes a lock sleeve 4 and a lock head 3, the lock sleeve 4 is arranged outside the lock head 3, the lock head 3 can rotate relative to the lock sleeve 4, the lock sleeve 4 and the lock head 3 extend in the same direction, the lock head 3 includes a main body 32 and a locking portion 31 arranged at one end of the main body 32, the main body 32 and the locking portion 31 are axially arranged along the lock head 3, the locking portion 31 extends out of one end of the lock sleeve 4, the other end of the main body 32 of the lock head 3 away from the locking portion 31 extends out of the other end of the lock sleeve 4, and the main body 32 of the lock head 3 is cylindrical.

[0054] The device has an initial state and a locked state. When in the initial state, the lock frame 2 and the locking assembly are both accommodated in the frame 15, the locking portion 31 of the lock head 3 is located in the accommodating cavity of the lock frame 2, the lock sleeve 4 is partially located in the accommodating cavity, and the remaining portion of the lock sleeve 4 (the second section of the lock sleeve 4) is located outside the accommodating cavity; when in the locked state, the lock frame 2 and the locking assembly are both located outside the frame 15, the locking portion 31 of the lock head 3 is located outside the accommodating cavity of the lock frame 2, the lock sleeve 4 is partially located in the accommodating cavity, and the remaining portion of the lock sleeve 4 is located outside the accommodating cavity, the locking portion 31 is used to lock the container, and an opening matching the locking portion 31 is provided in the container, and the shape of the bottom of the locking portion 31 is adapted to the shape of the opening in the container. When locking the container, the locking portion 31 first extends into the opening in the container, and then the lock head 3 is rotated so that the locking portion 31 can be stuck in the opening in the container (the opposite ends of the locking portion 31 respectively protrude from the opposite ends of the opening in the container, that is, the lock head 3 locks the container).

[0055] The locking assembly of this example can move along the height direction of the accommodating cavity, and the device can be switched between the initial state and the locking state by adjusting the position of the locking assembly.

[0056] In some embodiments, a first clamping portion 43 and a second clamping portion 44 are provided on the outer periphery of the locking sleeve 4, and the first clamping portion 43 and the second clamping portion 44 are arranged along the axial direction of the locking sleeve 4, and the first clamping portion 43 is closer to the locking portion 31 than the second clamping portion 44; when the device is in an initial state, the first clamping portion 43 is located in the accommodating cavity, a fastener is connected to the lock frame 2, and the fastener abuts against the first clamping portion 43 to fix the locking assembly relative to the lock frame 2; when the device is in a locked state, the second clamping portion 44 is located above the accommodating space, and the second clamping portion 44 abuts against the upper side of the lock frame 2 to fix the locking assembly relative to the lock frame 2.

[0057] In a preferred embodiment, see Fig. 9 The lock sleeve 4 includes a first section 41 and a second section 42 connected to each other. The width of the first section 41 is ( Fig. 9The first section 41 is wider than the second section 42, the first section 41 is wide at the top and narrow at the bottom, the second section 42 is cylindrical, the first section 41 and the second section 42 are arranged along the axial direction of the lock sleeve 4, the locking portion 31 extends out of the end of the first section 41 away from the second section 42, and the other end of the lock head 3 extends out of the end of the second section 42 away from the first section 41, and the outer periphery of the first section 41 is provided with a first clamping portion 43 and a second clamping portion 44.

[0058] The first section 41 of the locking sleeve 4 in this example includes a first part, a second part and a third part connected in sequence, the first part is close to the locking part 31, the width of the first part is greater than the width of the second part, the width of the second part is greater than the width of the third part, a first clamping part 43 is formed at the connection between the first part and the second part, and a second clamping part 44 is formed at the connection between the second part and the third part.

[0059] In this example, the first clamping portion 43 and the second clamping portion 44 are both L-shaped steps.

[0060] In some embodiments, the top surface area of ​​the locking portion 31 of the lock head 3 is smaller than its bottom surface area, that is, the locking portion 31 has a narrow top and wide bottom structure; the bottom surface shape of the locking portion 31 of the lock head 3 is adapted to the upper end surface shape of the lock sleeve 4 (they have the same shape), and the bottom surface area of ​​the locking portion 31 is less than or equal to the upper end surface area of ​​the lock sleeve 4; a gap is maintained between the bottom surface of the locking portion 31 of the lock head 3 and the upper end surface of the lock sleeve 4.

[0061] When the device is in a locked state, the locking assembly has a first position and a second position. When in the first position, the projection surface (bottom surface) of the bottom of the locking portion 31 coincides with the projection surface top (top surface) of the locking sleeve 4 (the projection surface of the bottom surface of the locking portion 31 projected on the top surface of the locking sleeve 4 coincides with the top surface of the locking sleeve 4); when in the second position, the projection surface of the bottom of the locking portion 31 partially coincides with the projection surface of the top of the locking sleeve 4, that is, the opposite ends of the locking portion 31 ( Fig.17 a and b in the figure) extend out from opposite sides of the top surface of the lock sleeve 4 ( Fig.17 When locking the container, the locking assembly is first in the first position, the locking portion 31 first extends into the opening in the container, and then the lock head 3 is rotated so that the locking portion 31 can be stuck in the opening in the container.

[0062] See also Figure 4 The lock frame 2 includes a fixing portion 21, an upper support plate 22, a front support plate, and a rear support plate 23. The rotating shaft 1 is arranged on the fixing portion 21, and the upper support plate 22 is arranged on the upper side of the fixing portion 21. A through hole 221 is arranged on the upper support plate 22. The shape of the through hole 221 is adapted to the plane cross-sectional size of the second clamping portion 44 of the first section 41 of the lock sleeve 4, which is convenient for the lock sleeve 4 and the lock head 3 to pass through the through hole 221; the front support plate and the rear support plate are arranged opposite to each other and a gap is maintained between the two. The front support plate and the rear support plate are respectively arranged on the front and rear sides of the fixing portion 21 (the front and rear refer to the Figure 4 (shown in the state shown), the front support plate and the rear support plate are both located at the lower side of the upper support plate 22, and a receiving cavity is formed between the upper support plate 22, the fixing portion 21, the front support plate, and the rear support plate 23. The side of the receiving cavity away from the upper support plate 22 is open, and the side of the receiving cavity away from the fixing portion 21 is open, so as to facilitate the movement of the locking assembly along the height direction of the receiving cavity.

[0063] In some embodiments, a first hole 421 and a second hole 422 are formed on the second section 42 of the lock sleeve 4, and the first hole 421 and the second hole 422 are distributed along the axial direction of the lock sleeve 4, and the center lines of the first hole 421 and the second hole 422 are parallel, and the center lines of the first hole 421 and the second hole 422 are perpendicular to the axial direction of the lock sleeve 4; a third hole 321 and a fourth hole 322 are formed on the main body 32 of the lock head 3, and the third hole 321 and the fourth hole 322 are distributed along the axial direction of the lock head 3, and the center lines of the third hole 321 and the fourth hole 322 are perpendicular; a corresponding fifth hole 231 is formed on the front support plate and the rear support plate, and a corresponding sixth hole 232 is also formed on the front support plate and the rear support plate, and a corresponding seventh hole 233 is also formed on the front support plate and the rear support plate, and the fifth hole 231, the sixth hole 232, and the seventh hole 233 are arranged in sequence from top to bottom (see Figure 4 , from the direction close to the upper side of the lock frame to the direction away from the upper side of the lock frame). Preferably, two seventh holes 233 are provided, and the two seventh holes 233 are arranged side by side to better fix the locking assembly.

[0064] When the device is in the initial state, a fastener 5 passes through the seventh holes 233 on the front support plate and the rear support plate in sequence, and the fastener 5 abuts against the first clamping portion 43 .

[0065] When the device is in a locked state, and when the locking assembly is in the first position, the first hole 421, the third hole 321, and the fifth hole 231 are concentrically arranged, and a first positioning shaft 7 passes through the first hole 421, the third hole 321, and the fifth hole 231 in sequence, so that the lock sleeve 4, the lock head 3, and the lock frame 2 are relatively fixed. At this time, the container can be placed, and the locking part 31 first extends into the opening in the container, and the bottom surface of the locking part 31 coincides with the surface occupied by the opening, that is, the opposite ends of the locking part 31 correspond to the opposite ends of the opening in the container respectively;

[0066] When the device is in a locked state, and the locking assembly is in the second position by rotating the lock head 3 relative to the lock sleeve 4, the second hole 422, the fourth hole 322 and the sixth hole 232 are concentrically arranged, and a second positioning shaft passes through the second hole 422, the fourth hole 322 and the sixth hole 232 in sequence, so that the lock sleeve 4, the lock head 3 and the lock frame 2 are relatively fixed. At this time, the lock head 3 locks the container, that is, the opposite ends of the locking part 31 respectively protrude from the opposite ends of the opening in the container, and the bottom surface of the locking part 31 is against the plane where the container opening is located.

[0067] In some embodiments, the device further comprises a base 9, and the other end of the main body 32 of the lock head 3 away from the locking portion 31 is connected to the base 9. When the device is in the initial state, the base 9 is arranged in the frame 15, and the base 9 can abut against the inner wall of the frame 15. A threaded hole is provided on the base 9, and the other end of the main body 32 of the lock head 3 away from the locking portion 31 is provided with an external thread. The main body 32 of the lock head 3 is connected to the base 9 by threads. The base 9 and the main body 32 of the lock head 3 are also provided with corresponding through holes 91, and the axial direction of the through holes 91 is perpendicular to the axial direction of the base 9. An elastic cylindrical pin passes through the base 9 and the through holes of the main body 32 of the lock head 3 to fix the main body 32 of the lock head 3; the lock head 3 can be rotated relative to the lock sleeve 4 by rotating the base 9.

[0068] In some embodiments, a connecting plate 14 is provided at one end of the rotating shaft 1, and the connecting plate 14 is located outside the vehicle frame 15. Corresponding mounting holes are provided on the connecting plate 14 and the fixing portion 21 of the lock frame 2, and the lock frame 2 is fixedly connected to the rotating shaft 1 by arranging a fixing member 6 in the mounting hole. Corresponding mounting holes are provided on the lock frame 2 and the vehicle frame 15, and the lock frame 2 is connected to the vehicle frame 15 by arranging a fastening connector 8 (bolt and nut assembly) in the mounting hole. When the lock frame 2 and the locking assembly need to be rotated, the fastening connector 8 needs to be loosened first. When the device is in the desired state, the fastening connector 8 is installed to connect the lock frame 2 to the vehicle frame 15, so as to facilitate the operation of the device.

[0069] In some embodiments, the lock frame 2 is rotatably connected to the vehicle frame 15 via the rotating shaft 1. An oil passage 10 is provided in the rotating shaft 1. The oil passage 10 is connected to an oil source. Fig.16 The oil passage 10 includes a vertical section and a transverse section. The vertical section is parallel to the axis of the rotating shaft 1, and the transverse section is perpendicular to the axis of the rotating shaft 1. One end of the transverse section away from the vertical section passes through the rotating shaft 1, that is, the rotating shaft 1 is provided with an opening at this end.

[0070] In some embodiments, the device further comprises a support frame 11, which is arranged on the upper side of the lock frame 2, and comprises a top surface and an annular side surface, wherein the annular side surface is arranged on the lower side of the top surface, and the top surface is perpendicular to the annular side surface and connected to enclose a receiving space with an opening at the bottom, wherein the receiving space is connected to the receiving cavity of the lock frame 2, and an opening is provided on the top surface for the lock sleeve 4 to pass through; a first flexible pad 12 is provided on the top surface of the support frame 11 to facilitate the placement of the container; a second flexible pad 13 is provided on one side of the annular side surface of the support frame 11, and the second flexible pad 13 is located between the support frame 11 and the frame 15 to prevent collision with the frame 15. When the device is in a locked state, the support frame 11, the first flexible pad 12 and the second flexible pad 13 are installed; when the device changes from the locked state to the initial state, the support frame 11, the first flexible pad 12 and the second flexible pad 13 are removed.

[0071] In this example, multiple rotary lock devices are provided, and multiple rotary lock devices are provided on the left and right sides of the frame 15 respectively, wherein the rotary lock device located on the left side of the frame 15 is symmetrically arranged with the rotary lock device located on the right side of the frame 15, and multiple rotary lock devices can also be installed on the front and rear sides of the frame 15, which can meet the needs of four-point fixation of the container.

[0072] The specific implementation of the rotary lock device in this example is:

[0073] When the device changes from the initial state to the locking state, the device is in the initial state, the fastening connector 8 is loosened, and the lock frame 2 and the locking assembly are rotated 90° relative to the frame 15 until the lock frame 2 part and the locking assembly are both outside the frame 15, the fastener 5 at the seventh hole 233 is taken out, and the locking assembly is moved upward until the lock head 3 and the lock sleeve 4 part pass through the through hole 221 of the lock frame 2, and then the locking assembly is rotated so that the second clamping portion 44 of the lock sleeve 4 abuts against the upper side of the lock frame 2, and a first positioning shaft 7 is passed through the first hole 421, the third hole 321, and the fifth hole 231 in sequence. At this time, the container can be placed through the lock head 3; when the container is to be locked, the first positioning shaft 7 is taken out, and after the lock head 3 is rotated 90° relative to the lock sleeve 4, a second positioning shaft is passed through the second hole 422, the fourth hole 322 and the sixth hole 232 in sequence. At this time, the lock head 3 locks the container.

[0074] When the device changes from the locking state to the initial state, take out the second positioning shaft, rotate the lock head 3 90° relative to the lock sleeve 4, and then pass a first positioning shaft 7 through the first hole 421, the third hole 321, and the fifth hole 231 in sequence, and then rotate the locking assembly, and then move the locking assembly so that the lock head 3 and the lock sleeve 4 partially pass through the through hole 221 of the lock frame 2 until the locking portion 31 of the lock head 3 is located in the accommodating cavity of the lock frame 2, and finally rotate the lock frame 2 so that the lock frame 2 and the locking assembly are both accommodated in the frame 15, and install the fastening connector 8 to fix the lock frame to the frame.

[0075] Compared with traditional container transport engineering vehicles, the use of the adjustable twist lock device in this example can effectively reduce the width and height of the engineering vehicle, reduce the cost of the engineering vehicle, and improve the passing performance of the engineering vehicle under special working conditions.

[0076] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable twist lock device, characterized in that: include: A lock frame, the lock frame is rotatably connected to the frame, the lock frame has a receiving cavity, and a through hole is formed on the upper side of the receiving cavity; A locking assembly, wherein the locking assembly is slidably arranged on the lock frame, the locking assembly comprises a lock sleeve and a lock head, the lock sleeve is arranged outside the lock head, the lock head can rotate relative to the lock sleeve, the lock head comprises a main body, and a locking part arranged at one end of the main body, the locking part extends out of one end of the lock sleeve; The device has an initial state and a locking state. When in the initial state, the lock frame and the locking assembly are both accommodated in the frame, and the locking portion of the lock head is located in the accommodating cavity of the lock frame; when in the locking state, the lock frame part and the locking assembly are both located outside the frame, and the locking portion of the lock head is located outside the accommodating cavity of the lock frame.

2. The adjustable twist lock device according to claim 1, characterized in that: The outer periphery of the locking sleeve is provided with a first clamping portion and a second clamping portion, the first clamping portion and the second clamping portion are arranged along the axial direction of the locking sleeve, and the first clamping portion is closer to the locking portion than the second clamping portion; When the device is in an initial state, the first clamping portion is located in the accommodating cavity, a fastener is connected to the lock frame, and the fastener abuts against the first clamping portion; When the device is in a locked state, the second clamping portion is located above the through hole, and the second clamping portion abuts against the upper side of the locking frame.

3. The adjustable twist lock device according to claim 2, characterized in that: The lock sleeve comprises a first section and a second section connected to each other, the first section and the second section are arranged along the axial direction of the lock sleeve, the width of the first section is greater than the width of the second section, the locking portion extends out of an end of the first section away from the second section, the other end of the main body of the lock head extends out of an end of the second section away from the first section, and the first clamping portion and the second clamping portion are arranged on the outer periphery of the first section.

4. The adjustable twist lock device according to claim 2, characterized in that: When the device is in a locked state, the locking assembly has a first position and a second position, and when in the first position, the projection surface of the bottom of the locking portion coincides with the projection surface of the top of the locking sleeve; When in the second position, the projection surface of the bottom of the locking portion partially overlaps with the projection surface of the top of the locking sleeve.

5. The adjustable twist lock device according to claim 4, characterized in that: The lock frame includes a fixing portion, an upper support plate, a front support plate, and a rear support plate. The upper support plate is arranged on the upper side of the fixing portion, and the upper support plate is provided with the perforation. The front support plate and the rear support plate are respectively arranged on the front and rear sides of the fixing portion. The front support plate and the rear support plate are both located on the lower side of the upper support plate. The accommodating cavity is formed between the upper support plate, the fixing portion, the front support plate, and the rear support plate.

6. The adjustable twist lock device according to claim 5, characterized in that: The lock sleeve is provided with a first hole and a second hole, the first hole and the second hole are distributed along the axial direction of the lock sleeve, and the center lines of the first hole and the second hole are parallel; the lock head is provided with a third hole and a fourth hole, the third hole and the fourth hole are distributed along the axial direction of the lock head, and the center lines of the third hole and the fourth hole are perpendicular; the front support plate and the rear support plate are provided with a corresponding fifth hole, a corresponding sixth hole and a corresponding seventh hole, and the fifth hole, the sixth hole and the seventh hole are arranged in sequence from top to bottom; When the device is in an initial state, a fastener is arranged in the seventh hole, and the fastener abuts against the first clamping portion; when the device is in a locked state, and when the locking assembly is in a first position, the first hole, the third hole, and the fifth hole are concentrically arranged, and a first positioning shaft passes through the first hole, the third hole, and the fifth hole in sequence; When the device is in a locked state and when the locking assembly is in a second position, the second hole, the fourth hole and the sixth hole are concentrically arranged, and a second positioning shaft passes through the second hole, the fourth hole and the sixth hole in sequence.

7. The adjustable twist lock device according to claim 1, characterized in that: The device also includes a base, and the other end of the main body of the lock head away from the locking part is connected to the base. When the device is in an initial state, the base is arranged in the frame.

8. The adjustable twist lock device according to claim 1, characterized in that: The lock frame is rotatably connected to the vehicle frame via a rotating shaft, a connecting plate is provided at one end of the rotating shaft, corresponding mounting holes are provided on the connecting plate and the lock frame, and the lock frame is fixedly connected to the rotating shaft by arranging a fixing piece in the mounting hole.

9. The adjustable twist lock device according to claim 1, characterized in that: The device also includes a support frame, which is arranged on the upper side of the lock frame. The support frame includes a top surface and an annular side surface, and the annular side surface is arranged on the lower side of the top surface. The top surface is perpendicular to the annular side surface and is connected to enclose a receiving space with an opening at the bottom. The receiving space is connected to the receiving cavity of the lock frame. The receiving space is used to receive the lock sleeve part. The locking part of the lock head is located above the receiving space. An opening is provided on the top surface for the lock sleeve to pass through.

10. The adjustable twist lock device according to claim 9, characterized in that: A first flexible pad is arranged on the top surface of the support frame, a second flexible pad is arranged on one side of the annular side surface of the support frame, and the second flexible pad is located between the support frame and the vehicle frame.

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