Split type supporting device of semitrailer

Abstract

The utility model provides a split type supporting device of a semitrailer, which belongs to the technical field of frame supporting equipment and comprises a top plate, a connecting base is fixedly connected to the middle of the bottom end of the top plate, a supporting sleeve rod is movably connected to the inner side of the connecting base, and a telescopic inner rod is movably connected to an inner cavity of the supporting sleeve rod. Connecting grooves are formed in the front side and the rear side of the bottom of the top plate, a protective shell is movably connected to the outer side of the bottom of the top plate, and a driving mechanism is arranged in the connecting base. Through cooperative work and use of all the components of the device, the problems that when existing equipment is used, the device cannot be folded, the distance between the equipment and the ground is small, the equipment is prone to being damaged when colliding with the ground in the vehicle running process, and the equipment cannot be folded in the vehicle running process are solved. And stones and water splashed by wheels are easy to impact the surface of the equipment, so that the surface of the equipment is damaged and rusted, and the service life of the equipment is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle frame supporting equipment, and in particular relates to a split supporting device for a semitrailer. Background Art

[0002] A semitrailer is a trailer with an axle placed behind the center of gravity of the vehicle and equipped with a coupling device that can transmit horizontal and vertical forces to the tractor. It is a heavy-duty transport vehicle connected to the semitrailer head through a traction pin. After the semitrailer body is separated from the semitrailer head, a supporting device is required to support it.

[0003] However, the existing equipment cannot be folded, resulting in a small distance between the equipment and the ground. When the vehicle is driving, the equipment may collide with the ground and be easily damaged. In addition, when the vehicle is driving, stones and water splashed by the wheels may easily hit the surface of the equipment, causing the surface of the equipment to be scratched and rusted, which will reduce the service life of the equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a split supporting device for a semitrailer, aiming to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A split supporting device for a semi-trailer comprises a top plate, a connecting base is fixedly connected to the middle part of the bottom end of the top plate, a supporting sleeve rod is movably connected to the inner side of the connecting base, a telescopic inner rod is movably connected to the inner cavity of the supporting sleeve rod, connecting grooves are provided on the front and rear sides of the bottom of the top plate, a protective shell is movably connected to the outer side of the bottom of the top plate, a driving mechanism is arranged inside the connecting base, a locking mechanism is arranged inside the connecting groove, and the bottom end of the telescopic inner rod is movably connected to the supporting bottom plate.

[0007] As a preferred solution of the utility model, the driving mechanism includes a driving motor, a driving worm, a connecting shaft and a transmission tooth. The driving motor is fixedly installed on the outside of the connecting base. The driving worm, the connecting shaft and the transmission tooth are movably connected to the inner cavity of the connecting base. Both ends of the connecting shaft pass through the outside of the connecting base.

[0008] As a preferred solution of the utility model, the driving worm is fixedly connected to the output end of the driving motor, the connecting shaft is fixedly connected to the top of the supporting sleeve rod, the transmission tooth is fixedly connected to the surface of the connecting shaft, and the driving worm is meshingly connected with the transmission tooth.

[0009] As a preferred solution of the utility model, the locking mechanism includes a device slot, a locking block, a spring and a locking slot, the device slot is opened in the inner cavity on the right part of the top plate, the locking block is movably connected to the inner cavity of the device slot, and the spring is fixedly connected to the rear end of the inner cavity of the device slot.

[0010] As a preferred solution of the utility model, the front end of the spring is fixedly connected to the rear end of the lock card block, the lock card slot is opened at the top of the protective shell, and the bottom end of the lock card block is movably connected to the inner cavity of the lock card slot.

[0011] As a preferred solution of the utility model, the top end of the supporting sleeve rod inner cavity is fixedly connected to a hydraulic telescopic rod, the bottom end of the hydraulic telescopic rod is fixedly connected to the bottom end of the telescopic inner rod inner cavity, the bottom end of the supporting bottom plate is provided with an anti-slip groove, and the top end of the top plate is fixedly connected to an isolation pad.

[0012] As a preferred solution of the utility model, a mounting screw hole is opened on the outer side of the top end of the top plate, a bearing body is fixedly sleeved on the surface of the driving worm, the bearing body is fixedly sleeved in the left wall of the connecting base, the inner wall of the supporting sleeve rod is fixedly connected to a limiting block, and the limiting block is movably connected to the outer wall of the telescopic inner rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: through the coordinated working of the various components of the device, the problem that the prior art equipment cannot be folded when in use, resulting in a small distance between the equipment and the ground, and the equipment is easily damaged by collision with the ground during vehicle driving, and the stones and water splashed by the wheels during vehicle driving are easy to hit the surface of the equipment, causing the surface of the equipment to be scratched and rusted, which will reduce the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0015] Figure 1 It is a schematic diagram of the overall front side structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model when viewed from above;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the top of the connecting base of the utility model;

[0018] Figure 4It is a schematic diagram of a partial cross-sectional structure of the top plate of the utility model;

[0019] Figure 5 This is a schematic diagram of the inner cavity structure of the support sleeve rod of the utility model.

[0020] In the figure: 1. top plate; 2. connecting base; 3. supporting sleeve rod; 4. telescopic inner rod; 5. connecting groove; 6. protective shell; 7. driving mechanism; 701. driving motor; 702. driving worm; 703. connecting shaft; 704. transmission gear; 8. locking mechanism; 801. installation groove; 802. locking block; 803. spring; 804. locking slot; 9. supporting bottom plate; 10. hydraulic telescopic rod; 11. anti-skid groove; 12. isolation pad; 13. mounting screw hole; 14. bearing body; 15. limit block. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0024] Example 1

[0025] Reference Figures 1 to 5 , which is the first embodiment of the utility model, and this embodiment provides a split supporting device for a semi-trailer, including a top plate 1, a connecting base 2 is fixedly connected to the middle of the bottom end of the top plate 1, a supporting sleeve rod 3 is movably connected to the inner side of the connecting base 2, a telescopic inner rod 4 is movably connected to the inner cavity of the supporting sleeve rod 3, a driving mechanism 7 is arranged inside the connecting base 2, and the bottom end of the telescopic inner rod 4 is movably connected to a supporting bottom plate 9.

[0026] Specifically, the driving mechanism 7 includes a driving motor 701, a driving worm 702, a connecting shaft 703 and a transmission tooth 704. The driving motor 701 is fixedly installed on the outer side of the connecting base 2. The driving worm 702, the connecting shaft 703 and the transmission tooth 704 are all movably connected to the inner cavity of the connecting base 2. Both ends of the connecting shaft 703 pass through the outer side of the connecting base 2. The driving worm 702 is fixedly connected to the output end of the driving motor 701. The connecting shaft 703 is fixedly connected to the top of the supporting sleeve rod 3. The transmission tooth 704 is fixedly connected to the surface of the connecting shaft 703. The driving worm 702 is meshed with the transmission tooth 704.

[0027] Furthermore, a hydraulic telescopic rod 10 is fixedly connected to the top end of the inner cavity of the support sleeve rod 3, and the bottom end of the hydraulic telescopic rod 10 is fixedly connected to the bottom end of the inner cavity of the telescopic inner rod 4. An anti-slip groove 11 is provided at the bottom end of the support bottom plate 9, and an isolation pad 12 is fixedly connected to the top end of the top plate 1.

[0028] When in use, the protective shell 6 is pushed to the left to make the support sleeve rod 3 leak out, and then the driving motor 701 is controlled to drive the driving worm 702 to rotate, and the driving worm 702 is driven to rotate by the rotation of the transmission tooth 704, and the connecting shaft 703 is driven to rotate by the rotation of the transmission tooth 704, and the supporting sleeve rod 3 is driven to swing by the rotation of the connecting shaft 703, so that the supporting sleeve rod 3 is perpendicular to the top plate 1, and the angle formed is a right angle, and the connection mode between the driving worm 702 and the transmission tooth 704 is such that the driving worm 702 can drive the transmission tooth 704 to rotate, while the transmission tooth 704 cannot drive the driving worm 702 to rotate, so that the driving worm 702 can limit the transmission tooth 704, and then the hydraulic telescopic rod 10 is controlled to work. Extend, and the extension of the hydraulic telescopic rod 10 pushes the telescopic inner rod 4 to extend from the inner cavity of the support sleeve rod 3, and the movement of the telescopic inner rod 4 drives the support base plate 9 to move. When the support base plate 9 is in contact with the ground, the supporting force formed by the support base plate 9 and the ground pushes the support sleeve rod 3 to move upward, thereby driving the top plate 1 to rise, and the friction force at the bottom of the support base plate 9 is increased by the anti-slip groove 11, and the top plate 1 is prevented from directly contacting the frame by the isolation pad 12, so as not to cause wear. When the frame does not need support, the drive motor 701 is controlled to work in reverse to swing the support sleeve rod 3 to be parallel to the top plate 1, thereby retracting the support sleeve rod 3 to increase the ground clearance of the device, and then push the protective shell 6 to the right side of the bottom of the top plate 1 to protect the support sleeve rod 3.

[0029] In summary, through the coordinated work between the various components of the device, the problem of the existing equipment being unable to be folded when in use, resulting in a small distance between the equipment and the ground, and the equipment being easily damaged by collision with the ground during vehicle driving, and the stones and water splashed by the wheels being easily hit on the surface of the equipment during vehicle driving, causing the surface of the equipment to be scratched and rusted, which will reduce the service life of the equipment.

[0030] Example 2

[0031] Reference Figures 1 to 5 , which is the second embodiment of the utility model. Different from the previous embodiment, this embodiment provides a split supporting device for a semi-trailer, including a top plate 1, the front and rear sides of the bottom of the top plate 1 are both provided with connecting grooves 5, the outer side of the bottom of the top plate 1 is movably connected with a protective shell 6, and a locking mechanism 8 is arranged inside the connecting groove 5.

[0032] Specifically, the locking mechanism 8 includes a device slot 801, a locking block 802, a spring 803 and a locking slot 804. The device slot 801 is opened in the inner cavity on the right side of the top plate 1, the locking block 802 is movably connected to the inner cavity of the device slot 801, the spring 803 is fixedly connected to the rear end of the inner cavity of the device slot 801, the front end of the spring 803 is fixedly connected to the rear end of the locking block 802, the locking slot 804 is opened at the top of the protective shell 6, and the bottom end of the locking block 802 is movably connected to the inner cavity of the locking slot 804.

[0033] Furthermore, a mounting screw hole 13 is opened on the outer side of the top of the top plate 1, and a bearing body 14 is fixedly sleeved on the surface of the driving worm 702. The bearing body 14 is fixedly sleeved in the left wall of the connecting base 2. The inner wall of the supporting sleeve rod 3 is fixedly connected to a limiting block 15, and the limiting block 15 is movably connected to the outer wall of the telescopic inner rod 4.

[0034] When in use, the device is installed to the bottom of the frame by using bolts to pass through the mounting screw holes 13, and the locking block 802 is pressed to move the locking block 802 toward the inner cavity of the device groove 801, so that the bottom of the locking block 802 is separated from the inner cavity of the locking slot 804, and the protective shell 6 is lost, so that the protective shell 6 can move, and the supporting sleeve rod 3 can be swung down by moving the protective shell 6 to the left side of the top plate 1, and the locking block 802 is pushed to move outward by the rebound characteristics of the spring 803, so that the locking block 802 is connected to the inner cavity of the locking slot 804 to block the telescopic inner rod 4, so that the protective shell 6 will not move after moving to the right side of the top plate 1, and the supporting sleeve rod 3 is protected. The bearing body 14 can reduce the wear between the driving worm 702 and the left wall of the connecting base 2, and the movement of the telescopic inner rod 4 can be limited by the limit block 15.

[0035] In summary, through the setting of the locking mechanism 8, the protective shell 6 can be quickly limited and contact limited, so that the protective shell 6 can continue to protect the support sleeve rod 3 during the driving process of the vehicle, thereby improving the safety of the support sleeve rod 3. Through the setting of the bearing body 14, the service life of the driving worm 702 can be improved. Through the setting of the limit block 15, the deviation and shaking of the telescopic inner rod 4 during use can be avoided, thereby improving its stability.

[0036] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0037] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0038] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A split support device for a semitrailer, characterized in that: The invention comprises a top plate (1), wherein a connecting base (2) is fixedly connected to the middle of the bottom end of the top plate (1), a supporting sleeve rod (3) is movably connected to the inner side of the connecting base (2), a telescopic inner rod (4) is movably connected to the inner cavity of the supporting sleeve rod (3), a connecting groove (5) is provided on the front and rear sides of the bottom of the top plate (1), a protective shell (6) is movably connected to the outer side of the bottom of the top plate (1), a driving mechanism (7) is arranged inside the connecting base (2), a locking mechanism (8) is arranged inside the connecting groove (5), and the bottom end of the telescopic inner rod (4) is movably connected to a supporting bottom plate (9).

2. A split support device for a semitrailer according to claim 1, characterized in that: The driving mechanism (7) comprises a driving motor (701), a driving worm (702), a connecting shaft (703) and a transmission tooth (704); the driving motor (701) is fixedly mounted on the outside of the connecting base (2); the driving worm (702), the connecting shaft (703) and the transmission tooth (704) are all movably connected to the inner cavity of the connecting base (2); and both ends of the connecting shaft (703) extend through the outside of the connecting base (2).

3. A split support device for a semitrailer according to claim 2, characterized in that: The driving worm (702) is fixedly connected to the output end of the driving motor (701), the connecting shaft (703) is fixedly connected to the top end of the supporting sleeve rod (3), the transmission teeth (704) are fixedly connected to the surface of the connecting shaft (703), and the driving worm (702) is meshingly connected with the transmission teeth (704).

4. A split support device for a semitrailer according to claim 1, characterized in that: The locking mechanism (8) comprises a mounting groove (801), a locking block (802), a spring (803) and a locking groove (804); the mounting groove (801) is provided in an inner cavity at the right part of the top plate (1); the locking block (802) is movably connected to the inner cavity of the mounting groove (801); and the spring (803) is fixedly connected to the rear end of the inner cavity of the mounting groove (801).

5. A split support device for a semitrailer according to claim 4, characterized in that: The front end of the spring (803) is fixedly connected to the rear end of the lock card block (802), the lock card slot (804) is opened at the top end of the protective shell (6), and the bottom end of the lock card block (802) is movably connected to the inner cavity of the lock card slot (804).

6. A split support device for a semitrailer according to claim 1, characterized in that: The top end of the inner cavity of the support sleeve rod (3) is fixedly connected to a hydraulic telescopic rod (10), the bottom end of the hydraulic telescopic rod (10) is fixedly connected to the bottom end of the inner cavity of the telescopic inner rod (4), the bottom end of the support bottom plate (9) is provided with an anti-slip groove (11), and the top end of the top plate (1) is fixedly connected to an isolation pad (12).

7. A split support device for a semitrailer according to claim 2, characterized in that: A mounting screw hole (13) is provided on the outer side of the top end of the top plate (1); a bearing body (14) is fixedly sleeved on the surface of the driving worm (702); the bearing body (14) is fixedly sleeved inside the left wall of the connecting base (2); a limit block (15) is fixedly connected to the inner wall of the supporting sleeve rod (3); and the limit block (15) is movably connected to the outer wall of the telescopic inner rod (4).

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