Lifting device for road and bridge construction

Abstract

The utility model relates to the technical field of bridge construction, in particular to a road bridge construction lifting device which comprises a base, notches are formed in the periphery of the upper end of the base, guide pin shafts are fixedly connected to the inner sides of the notches, and a rotating motor is fixedly installed at the middle end of the bottom of an inner cavity of the base. The rotating motor drives the rotating disc to rotate anticlockwise, then the rotating disc can drive the supporting arm to penetrate through the notch to move outwards through the driving pin shaft, meanwhile, the guiding pin shaft can slide on the inner side of the guiding sliding groove, movement of the supporting arm can be limited and guided, stability of the supporting arm during movement is guaranteed, and the service life of the supporting arm is prolonged. And after the supporting arms penetrate through the notches and are completely unfolded, a rotating motor is closed by an external controller, then a lifting threaded rod is driven by a rotating block to rotate, and under the assistance of a positioning block, the bottom of a supporting disc can be driven to make contact with the ground of the working position of the device, so that the supporting range of the device is expanded, and the stability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a road bridge construction lifting device. Background Art

[0002] During bridge construction, lifting devices are needed to lift materials or tools to facilitate construction workers at heights.

[0003] At present, a patent document with publication number CN215924274U discloses a lifting device for road and bridge construction, which belongs to the field of bridge construction. A lifting device for road and bridge construction includes a base, a plurality of mutually connected limit rods and lifting screws are respectively provided on the front and rear sides of the upper end of the base, a servo motor is provided at the lower end of the lifting screw at the lower end thereof and fixed to the bottom surface of the inner cavity of the base with the lower end thereof, a lifting bucket is sleeved between the limit rods on the left and right sides, a lifting shaft is provided at the rear end of the lifting bucket and is rotatably installed on the outer side of the lifting screw, a plurality of fixed shafts are rotatably installed on the lower end surface of the fixed plate, the fixed shafts are respectively connected to the upper side of the limit rod at the upper end and the lifting screw, a picking cavity matching the lifting bucket is provided in the middle of the fixed plate, and mutually connected positioning screw holes and positioning bolts are respectively provided on the upper end of the base, the limit rod, the lifting screw and the servo motor and the lower end of the limit rod, the lifting screw and the fixed shaft; the lifting bucket can be driven to be lifted vertically through the lifting screw to reduce the occupied space.

[0004] However, the above-mentioned existing lifting device for road and bridge construction lacks a stable structure during use. While reducing the occupied space, it is easy to topple over due to accidental collision, which increases its use risk. Therefore, we propose a lifting device for road and bridge construction. Utility Model Content

[0005] The purpose of the utility model is to provide a lifting device for road and bridge construction, which has the advantage of good stability and solves the problem that the existing lifting devices for road and bridge construction lack a stable structure during use, and while reducing the occupied space, they are prone to tipping over due to accidental collisions, increasing the risk of their use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a road and bridge construction lifting device, comprising a base, wherein slots are provided on all sides of the upper end of the base, guide pins are fixedly connected to the inner sides of the slots, a rotating motor is fixedly installed at the middle end of the bottom of the inner cavity of the base, a turntable is fixedly connected to the output end of the rotating motor, a driving pin is fixedly connected to the top of the turntable, a support arm is movably connected to the outer surface of the driving pin, a guide slot is provided on the inner surface of the support arm, a positioning block is fixedly connected to the end of the support arm away from the driving pin, an adjusting threaded rod is threadedly connected to the inner surface of the positioning block, and the bottom of the adjusting threaded rod is movably connected to the support plate.

[0007] Preferably, the guide slot and the guide pin are matched, and the guide pin slides on the inner side of the guide slot.

[0008] Preferably, a rotating block is fixedly connected to the top of the adjusting threaded rod, and the rotating block is a disc-shaped structure.

[0009] Preferably, both left and right ends of the top of the base are fixedly connected to limit rods, and the top of the limit rods is fixedly connected to a fixing ring.

[0010] Preferably, the lower end of the outer surface of the limiting rod is slidably connected to a limiting sleeve, one side of the limiting sleeve is fixedly connected to a connecting block, and the other side of the connecting block is fixedly connected to a lifting bucket.

[0011] Preferably, a lifting motor is fixedly installed on both left and right ends of the top of the base, the output end of the lifting motor is fixedly connected to a lifting threaded rod, and the top of the lifting threaded rod is movably connected to the bottom of the bearing and the fixing ring, the lower end of the outer surface of the lifting threaded rod is threadedly connected to a moving block, and the moving block and the outer surface of the lifting bucket are fixedly connected.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model drives the turntable to rotate counterclockwise through a rotating motor, and then the turntable can drive the support arm to pass through the slot to move outward via the driving pin shaft, and at the same time the guide pin shaft will slide on the inner side of the guide slot, so as to limit and guide the movement of the support arm and ensure the stability of the support arm during movement. After the support arm passes through the slot and is fully unfolded, the rotating motor is turned off by the external controller, and then the lifting threaded rod is driven to rotate via the rotating block, and with the assistance of the positioning block, the bottom of the support plate can be driven to contact the ground at the working position of the device, thereby expanding the support range of the device and improving the stability of the device.

[0014] 2. The utility model ensures the stability of the lifting bucket during lifting through the cooperation of the limit sleeve and the limit rod, with the assistance of the connecting block. The lifting threaded rod is driven to rotate by the lifting motor, so that the moving block moves up and down on the outer surface of the lifting threaded rod, thereby providing power for the lifting of the lifting bucket and avoiding the situation where a single lifting motor is overloaded and its service life is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the base structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the base of the utility model;

[0018] Figure 4 This is a schematic structural diagram of the interior of the base of the utility model from another perspective.

[0019] In the figure: 1. base; 2. limit rod; 3. support plate; 4. notch; 5. adjusting threaded rod; 6. lifting bucket; 7. connecting block; 8. limit sleeve; 9. moving block; 10. positioning block; 11. rotating block; 12. lifting threaded rod; 13. fixing ring; 14. lifting motor; 15. driving pin; 16. guide pin; 17. support arm; 18. guide slide; 19. turntable; 20. rotating motor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The base 1, limit rod 2, support plate 3, notch 4, adjusting threaded rod 5, lifting bucket 6, connecting block 7, limit sleeve 8, moving block 9, positioning block 10, rotating block 11, lifting threaded rod 12, fixing ring 13, lifting motor 14, driving pin 15, guide pin 16, support arm 17, guide slide groove 18, turntable 19 and rotating motor 20 components of the present application are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0024] Embodiment 1

[0025] See also Figure 1-Figure 4 As shown, the utility model provides a technical solution: a road bridge construction lifting device, comprising a base 1, notches 4 are provided around the upper end of the base 1, a guide pin 16 is fixedly connected to the inner side of the notch 4, a rotating motor 20 is fixedly installed at the middle end of the bottom of the inner cavity of the base 1, a turntable 19 is fixedly connected to the output end of the rotating motor 20, a driving pin 15 is fixedly connected to the top of the turntable 19, a support arm 17 is movably connected to the outer surface of the driving pin 15, a guide slot 18 is provided on the inner surface of the support arm 17, a positioning block 10 is fixedly connected to one end of the support arm 17 away from the driving pin 15, an adjusting threaded rod 5 is threadedly connected to the inner surface of the positioning block 10, and a supporting plate 3 is movably connected to the bottom of the adjusting threaded rod 5;

[0026] The guide slot 18 and the guide pin 16 are matched, and the guide pin 16 slides inside the guide slot 18;

[0027] Through the above technical solution Figure 3 As shown, by providing the guide slot 18 and the guide pin 16 , the movement of the support arm 17 can be limited and guided, and the stability of the support arm 17 during movement is ensured.

[0028] The top of the adjusting threaded rod 5 is fixedly connected with a rotating block 11, and the rotating block 11 is a disc-shaped structure.

[0029] Through the above technical solution Figure 1-Figure 4 As shown, the setting of the rotating block 11 makes it convenient for the user to drive the adjusting threaded rod 5 to rotate.

[0030] After the device is powered on through an external power socket, the external controller turns on the rotary motor 20 to drive the turntable 19 to rotate counterclockwise, and then the turntable 19 can drive the support arm 17 to pass through the slot 4 and move outward through the driving pin shaft 15. At the same time, the guide pin shaft 16 will slide on the inner side of the guide slot 18, so as to limit and guide the movement of the support arm 17 and ensure the stability of the support arm 17 during movement. After the support arm 17 passes through the slot 4 and is fully extended, the external controller turns off the rotary motor 20, and then, the rotating block 11 The lifting threaded rod 12 is driven to rotate, and with the assistance of the positioning block 10, the bottom of the support plate 3 can be driven to contact the ground at the working position of the device, thereby expanding the support range of the device and improving the stability of the device. After use, the lifting threaded rod 12 is driven by the rotating block 11 to rotate in the opposite direction, thereby resetting the support plate 3. Then, the external controller turns on the rotating motor 20 to drive the turntable 19 to rotate clockwise, and with the cooperation of the driving pin shaft 15 and the guide pin shaft 16, the support arm 17 is reset, which is convenient for people to use.

[0031] Embodiment 2

[0032] On the basis of embodiment 1, the present invention is as follows Figure 1 As shown, the left and right ends of the top of the base 1 are fixedly connected to the limit rod 2, and the top of the limit rod 2 is fixedly connected to the fixing ring 13;

[0033] The lower end of the outer surface of the limiting rod 2 is slidably connected to a limiting sleeve 8, one side of the limiting sleeve 8 is fixedly connected to a connecting block 7, and the other side of the connecting block 7 is fixedly connected to a lifting bucket 6;

[0034] Through the above technical solution Figure 1 As shown, through the cooperation of the limiting sleeve 8 and the limiting rod 2, with the assistance of the connecting block 7, the stability of the lifting bucket 6 during lifting and lowering is ensured.

[0035] Among them, a lifting motor 14 is fixedly installed on the left and right ends of the top of the base 1, and the output end of the lifting motor 14 is fixedly connected to the lifting threaded rod 12, and the top of the lifting threaded rod 12 is movably connected through the bearing and the bottom of the fixing ring 13, and the lower end of the outer surface of the lifting threaded rod 12 is threadedly connected to the moving block 9, and the moving block 9 and the outer surface of the lifting bucket 6 are fixedly connected.

[0036] Through the above technical solution Figure 1 As shown, the lifting motor 14 drives the lifting threaded rod 12 to rotate, so that the moving block 9 moves up and down on the outer surface of the lifting threaded rod 12, thereby providing power for the lifting bucket 6 to be lifted and lowered, avoiding the situation where a single lifting motor 14 is used with excessive load and reduces its service life.

[0037] This technical solution ensures the stability of the lifting bucket 6 during lifting and lowering through the cooperation of the limit sleeve 8 and the limit rod 2, with the assistance of the connecting block 7. The lifting motor 14 drives the lifting threaded rod 12 to rotate, and then the moving block 9 moves up and down on the outer surface of the lifting threaded rod 12, thereby providing power for the lifting and lowering of the lifting bucket 6, avoiding the situation where a single lifting motor 14 is used with excessive load and reduced service life.

[0038] Working principle: After the device is powered on through the external power socket, the external controller turns on the rotating motor 20 to drive the turntable 19 to rotate counterclockwise, and then the turntable 19 can drive the support arm 17 to pass through the slot 4 to move outward through the driving pin shaft 15, and at the same time, the guide pin shaft 16 will slide on the inner side of the guide slide groove 18, so as to limit and guide the movement of the support arm 17 and ensure the stability of the support arm 17 during movement. After the support arm 17 passes through the slot 4 and is fully unfolded, the external controller turns off the rotating motor 20, and then, the lifting threaded rod 12 is driven to rotate through the rotating block 11, and with the assistance of the positioning block 10, the bottom of the support plate 3 can be driven to contact the ground at the working position of the device, thereby expanding the support range of the device and improving the stability of the device. The stability of the device is ensured by the cooperation of the limit sleeve 8 and the limit rod 2, with the assistance of the connecting block 7, so as to ensure the stability of the lifting bucket 6 during lifting and lowering. The lifting motor 14 drives the lifting threaded rod 12 to rotate, so that the moving block 9 moves up and down on the outer surface of the lifting threaded rod 12, thereby providing power for the lifting and lowering of the lifting bucket 6, avoiding the situation where the single lifting motor 14 is overloaded and the service life is reduced. After use, the lifting threaded rod 12 is driven by the rotating block 11 to rotate in the opposite direction, so as to reset the support plate 3, and then, the external controller turns on the rotating motor 20 to drive the turntable 19 to rotate clockwise, and with the cooperation of the driving pin shaft 15 and the guide pin shaft 16, the support arm 17 is reset, which is convenient for people to use.

[0039] 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.

[0040] 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.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A road and bridge construction lifting device, comprising a base (1), characterized in that: The upper end of the base (1) is provided with slots (4) on all sides, and a guide pin shaft (16) is fixedly connected to the inner side of the slot (4). A rotating motor (20) is fixedly installed at the middle end of the bottom of the inner cavity of the base (1). The output end of the rotating motor (20) is fixedly connected to a turntable (19). The top of the turntable (19) is fixedly connected to a driving pin shaft (15) on all sides. The outer surface of the driving pin shaft (15) is movably connected to a support arm (17). The inner surface of the support arm (17) is provided with a guide groove (18). The end of the support arm (17) away from the driving pin shaft (15) is fixedly connected to a positioning block (10). The inner surface of the positioning block (10) is threadedly connected to an adjusting threaded rod (5), and the bottom of the adjusting threaded rod (5) is movably connected to the supporting plate (3).

2. A road and bridge construction lifting device according to claim 1, characterized in that: The guide slot (18) and the guide pin shaft (16) are matched, and the guide pin shaft (16) slides on the inner side of the guide slot (18).

3. A road and bridge construction lifting device according to claim 2, characterized in that: The top of the adjusting threaded rod (5) is fixedly connected with a rotating block (11), and the rotating block (11) is a disc-shaped structure.

4. A road and bridge construction lifting device according to claim 1, characterized in that: The left and right ends of the top of the base (1) are both fixedly connected to limit rods (2), and the top of the limit rod (2) is fixedly connected to a fixing ring (13).

5. A road and bridge construction lifting device according to claim 4, characterized in that: The lower end of the outer surface of the limiting rod (2) is slidably connected to a limiting sleeve (8), one side of the limiting sleeve (8) is fixedly connected to a connecting block (7), and the other side of the connecting block (7) is fixedly connected to a lifting bucket (6).

6. A road and bridge construction lifting device according to claim 1, characterized in that: A lifting motor (14) is fixedly installed at both left and right ends of the top of the base (1); the output end of the lifting motor (14) is fixedly connected to a lifting threaded rod (12); the top of the lifting threaded rod (12) is movably connected to the bottom of a bearing and a fixing ring (13); the lower end of the outer surface of the lifting threaded rod (12) is threadedly connected to a moving block (9); and the moving block (9) and the outer surface of the lifting bucket (6) are fixedly connected.

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