Hydraulic lifting platform with safety protection

Abstract

The application discloses a hydraulic lifting platform with safety protection, which comprises a supporting base, a bearing platform arranged above the supporting base, and a lifting mechanism connected between the bearing platform and the supporting base; the hydraulic lifting platform further comprises a protection mechanism, which comprises a maintenance protection piece and a platform blocking piece; the maintenance protection piece is arranged between the supporting base and the lifting mechanism and is rotatably connected with the supporting base; and the platform blocking piece is fixed to one side of the bearing platform close to the lifting mechanism; the hydraulic lifting platform is provided with the maintenance protection piece; when maintenance is performed, the maintenance protection piece is rotated to the vertical direction, so that the maintenance protection piece abuts against the lifting mechanism and supports the lifting mechanism, and the maintenance personnel is prevented from being hurt by accidental falling of the lifting mechanism during maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic lifting platforms, specifically relating to a hydraulic lifting platform with safety protection. Background Technology

[0002] Hydraulic lifting platforms are commonly used devices in the construction industry. Their structure consists of a platform connected to a lifting mechanism, which is hydraulically driven. Depending on the lifting method of the lifting mechanism, hydraulic lifting platforms come in various models, with the boom-type platform being the most common. In a conventional boom-type platform, the lifting mechanism is located above a support base. The support base contains a hydraulic drive mechanism that provides power to the hydraulic rod at the lifting mechanism, propelling the platform up and down. During use, the hydraulic drive mechanism inside the support base may malfunction. In this case, the support base needs to be opened for maintenance. However, during maintenance, personnel must reach under the platform. Ideally, the lifting mechanism should be depressurized. However, if the pressure is completely released, the platform will descend, narrowing the space between the support base and the platform, making operation difficult and hindering maintenance work. If the pressure is not completely released, a malfunction during maintenance could cause injury or death. Utility Model Content

[0003] To solve the above problems, this utility model proposes a hydraulic lifting platform with safety protection, including a support base, a bearing platform above the support base, and a lifting mechanism connecting the bearing platform and the support base.

[0004] It also includes a protective mechanism, which includes a maintenance protection component and a platform blocking component; the maintenance protection component is located between the support base and the lifting mechanism and is rotatably connected to the support base; the platform blocking component is fixed to the side of the carrying platform near the lifting mechanism.

[0005] Furthermore, there is a maintenance space between the support base and the lifting mechanism, and a maintenance protective component is located in the maintenance space. The maintenance protective component and the support base are hinged and can rotate from the horizontal direction to the vertical direction.

[0006] When the maintenance protective component is in a vertical position, its end away from the support base abuts against the lifting mechanism; when the maintenance protective component is in a horizontal position, the maintenance protective component and the support base are in contact.

[0007] During maintenance, the maintenance protective component is rotated to a vertical position and fixed, the pressure of the lifting mechanism is released, and the bottom end of the lifting mechanism abuts against the maintenance protective component. The maintenance protective component supports the lifting mechanism, expands the maintenance space, and there is no need to worry about the lifting mechanism falling.

[0008] Furthermore, the lifting mechanism passes through the carrying platform, and there is a gap between the lifting mechanism and the carrying platform. At the gap, the platform blocking component is set perpendicular to the carrying platform.

[0009] Platform barriers prevent items from falling into the gaps on the platform. Without them, items can easily fall through the gaps during construction work on the platform, requiring frequent lifting and lowering to retrieve them. This is especially problematic in bricklaying projects where materials contain adhesive substances like concrete. If such substances spill through the gaps, they can easily contaminate the pulleys and chains of the lifting assembly, affecting their meshing.

[0010] Furthermore, the protective mechanism also includes a lifting isolation component, which fits against the side wall of the lifting mechanism at the gap.

[0011] Lifting isolation components can isolate the lifting mechanism, protecting most of its area when it is not lifting, thus reducing the impact of external factors on the lifting mechanism to a certain extent.

[0012] Furthermore, the bottom surface of the support base is provided with two transport protection bars. The transport protection bars are hollow inside and open at both ends. The openings are located on the side of the support base, and the two transport protection bars are parallel to each other.

[0013] The support base is equipped with a hydraulic drive unit and circuit components. The hydraulic drive unit includes a hydraulic rod, which is connected to the lifting mechanism. The transport guard bar is designed to facilitate cooperation with forklifts at its opening, providing a good fixing point for the forklift and improving the convenience of transportation. On the other hand, it can protect the hydraulic drive unit inside the support base from accidental impacts to the bottom of the support base during transportation or movement, which could damage the hydraulic drive unit.

[0014] Furthermore, the lifting mechanism includes two sets of hydraulic lifting components, each of which includes multiple lifting arms, with pulleys and chains connecting adjacent lifting arms.

[0015] Preferably, the hydraulic lifting assembly has six lifting arms, each of which is nested within each other, with the first lifting arm fixed to the support base;

[0016] The second lifting arm is equipped with a first pulley, which is fixed to a hydraulic rod. The first pulley is connected to a first chain, one end of which is fixed to the first lifting arm and the other end is fixed to the third lifting arm.

[0017] The third lifting arm is equipped with a second pulley, which is connected to a second chain. One end of the second chain is fixed to the second lifting arm, and the other end is connected to the fourth lifting arm.

[0018] The fourth lifting arm is equipped with a third pulley, which is connected to a third chain. One end of the third chain is fixed to the third lifting arm, and the other end is connected to the fifth lifting arm.

[0019] The fifth lifting arm is equipped with a fourth pulley, which is connected to a fourth chain. One end of the fourth chain is fixed to the fourth lifting arm, and the other end is connected to the sixth lifting arm.

[0020] The sixth lifting arm is equipped with a fifth pulley, which is connected to a fifth chain. One end of the fifth chain is fixed to the fifth lifting arm, and the other end is connected to the support platform.

[0021] Furthermore, the support platform includes a central platform and two detachably connected side platforms. The central platform is located between the hydraulic lifting components, and the side platforms are located on the other side of the hydraulic lifting components. The side platforms can be folded.

[0022] The side platform can be detached from the central platform and can also be folded, allowing for flexible control of the usable area and adaptability to various usage scenarios, thus improving overall practicality.

[0023] Furthermore, the support base has four support legs, which are hinged to the sides of the support base, and the support legs are equipped with telescopic feet.

[0024] Furthermore, the support base is provided with a hinge seat, and the support leg is hinged to the hinge seat. The hinge seat is provided with a locking element, which includes a locking pin and a locking hole. The locking holes are respectively provided on the hinge seat and the support leg. When the support leg is extended, the locking holes of the support leg and the hinge seat coincide, and the locking pin is inserted into the two locking holes to achieve fixation. When the support leg is retracted, the locking pin only passes through the locking hole of the hinge seat, and the locking pin contacts the side wall of the support leg to restrict its movement and achieve locking.

[0025] The support legs are connected by a hinge, which reduces friction compared to traditional telescopic connections, making it easier to deploy the support legs, reducing the difficulty of deployment and the deployment time.

[0026] Furthermore, the support platform is divided into a working side and a closed side, and the length of the two support legs on the working side is shorter than the length of the two support legs on the closed side.

[0027] Compared with traditional telescopic support legs, the length adjustment of the support legs in this application is less flexible. If the length of the support leg on the working side is too long, the distance between the support platform and the working wall will be too large, which will make it inconvenient for workers to work and will also increase the danger to workers. Therefore, in order to change this defect, this application shortens the length of the support leg on the working side. This design can reduce the distance between the working side and the working wall and improve the safety of workers.

[0028] Furthermore, the support base is equipped with a traveling mechanism, which includes a front drive wheel and a rear driven wheel. The front drive wheel is located at the center of the front side of the support base, and the rear driven wheel is located on both sides of the rear of the support base.

[0029] The two rear driven wheels are connected by bearings and shafts and are located on both sides of the rear end of the support base; while the two front drive wheels are connected in parallel and located at the center of the front side. This shortens the distance between the two front drive wheels, improves the load-bearing capacity, avoids the situation where the shaft between the drive wheels is too long and is prone to breakage under pressure, and reduces the maintenance rate.

[0030] The beneficial effects of this utility model are as follows:

[0031] (1) This utility model is equipped with a maintenance protective component. When maintenance is performed, the maintenance protective component is rotated to the vertical direction so that the maintenance protective component and the lifting mechanism come into contact and support the lifting mechanism, so as to prevent the lifting mechanism from falling accidentally and injuring the maintenance personnel during maintenance.

[0032] (2) The present invention is equipped with a platform blocking component, which can effectively prevent the working tools or working materials from falling into the gap and causing obstruction to the lifting mechanism, thereby improving the safety of the lifting mechanism operation and reducing the failure rate of the lifting mechanism. Attached Figure Description

[0033] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0034] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0035] Figure 2 This is a schematic diagram showing the usage state of an embodiment of this utility model;

[0036] Figure 3 This is an embodiment of the present utility model. Figure 1 Enlarged view at point A;

[0037] Figure 4 This is an embodiment of the present utility model. Figure 2 Enlarged view at point B;

[0038] In the attached drawings: 1-support base, 11-transport protection bar, 12-support leg, 13-hinged seat, 14-locking element, 141-locking pin, 142-locking hole, 2-lifting mechanism, 21-hydraulic lifting assembly, 3-bearing platform, 31-center platform, 32-side platform, 33-enclosure, 4-protection mechanism, 41-maintenance protection element, 42-platform blocking element, 43-maintenance space, 44-lifting isolation element, 5-traveling mechanism, 51-front drive wheel, 52-rear driven wheel, 53-handle. Detailed Implementation

[0039] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0041] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0042] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0044] In one embodiment, such as Figure 1-2 As shown, a hydraulic lifting platform with safety protection includes a support base 1, a load-bearing platform 3 is provided above the support base 1, and a lifting mechanism 2 is connected between the load-bearing platform 3 and the support base 1.

[0045] It also includes a protective mechanism 4, which includes a maintenance protective component 41 and a platform blocking component 42; the maintenance protective component 41 is located between the support base 1 and the lifting mechanism 2, and is rotatably connected to the support base 1; the platform blocking component 42 is fixed to the side of the bearing platform 3 near the lifting mechanism 2.

[0046] In one embodiment, such as Figure 2 As shown, there is a maintenance space 43 between the support base 1 and the lifting mechanism 2. The maintenance protection component 41 is located in the maintenance space 43. The maintenance protection component 41 is hinged to the support base 1 and can rotate from the horizontal direction to the vertical direction.

[0047] When the maintenance protective component 41 is in the vertical direction, its end away from the support base 1 abuts against the lifting mechanism 2; when the maintenance protective component 41 is in the horizontal direction, the maintenance protective component 41 and the support base 1 are in contact.

[0048] During maintenance, the maintenance protective component 41 is rotated to a vertical position and fixed, the pressure of the lifting mechanism 2 is released, and the bottom end of the lifting mechanism 2 abuts against the maintenance protective component 41. The maintenance protective component 41 supports the lifting mechanism 2, expands the maintenance space 43, and there is no need to worry about the lifting mechanism 2 falling.

[0049] The maintenance protection component 41 includes two symmetrically arranged support frames, which are located below the two sets of hydraulic lifting components 21.

[0050] In one embodiment, the lifting mechanism 2 passes through the carrying platform 3, and there is a gap between the lifting mechanism 2 and the carrying platform 3. At the gap, the platform blocking member 42 is set perpendicular to the carrying platform 3.

[0051] Platform blocking component 42 will prevent items on the carrying platform 3 from falling into the gap. If platform blocking component 42 is not installed, items can easily fall along the gap during the construction process on the carrying platform 3, requiring frequent lifting and lowering to pick up the fallen items. In particular, the materials used in the wall construction project contain sticky substances such as concrete. If such substances are spilled along the gap, they can easily contaminate the pulleys and chains of the lifting component, affecting the meshing of the pulleys and chains.

[0052] In one embodiment, the protective mechanism 4 further includes a lifting isolation member 44, which is attached to the side wall of the lifting mechanism 2 at the gap.

[0053] The lifting isolation component 44 can isolate the lifting mechanism 2, and can protect most of the area of ​​the lifting mechanism 2 when it is not lifting, thus reducing the impact of the outside world on the lifting mechanism 2 to a certain extent.

[0054] In one embodiment, the bottom surface of the support base 1 is provided with two transport protection bars 11. The transport protection bars 11 are hollow inside and open at both ends. The openings are located on the side of the support base 1, and the two transport protection bars 11 are parallel to each other.

[0055] The support base 1 is equipped with a hydraulic drive unit and circuit components. The hydraulic drive unit includes a hydraulic rod, which is connected to the lifting mechanism 2. The transport guard bar 11 is provided in two ways: firstly, its opening facilitates cooperation with forklifts, providing a good fixing point for the forklifts and improving the convenience of transportation; secondly, it can protect the hydraulic drive unit inside the support base 1, preventing damage to the hydraulic drive unit caused by accidental impacts to the bottom of the support base 1 during transportation or movement.

[0056] Furthermore, the lifting mechanism 2 includes two sets of hydraulic lifting components 21, each hydraulic lifting component 21 including multiple lifting arms, with pulleys and chains connecting adjacent lifting arms.

[0057] Preferably, the hydraulic lifting assembly 21 has six lifting arms, each of which is nested together, and the first lifting arm is fixed to the support base 1;

[0058] The second lifting arm is equipped with a first pulley, which is fixed to a hydraulic rod. The first pulley is connected to a first chain, one end of which is fixed to the first lifting arm and the other end is fixed to the third lifting arm.

[0059] The third lifting arm is equipped with a second pulley, which is connected to a second chain. One end of the second chain is fixed to the second lifting arm, and the other end is connected to the fourth lifting arm.

[0060] The fourth lifting arm is equipped with a third pulley, which is connected to a third chain. One end of the third chain is fixed to the third lifting arm, and the other end is connected to the fifth lifting arm.

[0061] The fifth lifting arm is equipped with a fourth pulley, which is connected to a fourth chain. One end of the fourth chain is fixed to the fourth lifting arm, and the other end is connected to the sixth lifting arm.

[0062] The sixth lifting arm is equipped with a fifth pulley, which is connected to a fifth chain. One end of the fifth chain is fixed to the fifth lifting arm, and the other end is connected to the support platform 3.

[0063] During the ascent, the hydraulic rod pushes the first pulley of the second lifting arm, causing the second lifting arm and the first pulley to rise simultaneously. The first lifting arm is fixed, and the first chain passes around the first pulley to pull the third lifting arm. Since the first pulley is a movable pulley, the third lifting arm rises at a faster speed than the second lifting arm. The second chain pulls the fourth lifting arm, and similarly, the fourth lifting arm rises at a faster speed than the third lifting arm. The third chain pulls the fifth lifting arm, the fourth chain pulls the sixth lifting arm, and the fifth chain pulls the support platform 3.

[0064] Furthermore, the support platform 3 includes a central platform 31 and two detachably connected side platforms 32. The central platform 31 is located between the hydraulic lifting components 21, and the side platforms 32 are located on the other side of the hydraulic lifting components 21. The side platforms 32 can be folded.

[0065] The side platform 32 can be detached from the central platform 31 and can also be folded, allowing for flexible control of the usable area and adaptability to various usage scenarios, thus improving overall practicality.

[0066] Furthermore, the carrying platform 3 is divided into a working side and a closed side. The closed side is vertically equipped with a fence 33 for safety protection and to improve the safety of the staff. Both the side platform 32 and the central platform 31 are equipped with fences 33, and the fences 33 and the carrying platform 3 are detachably connected.

[0067] When moving, remove the side platform 32 enclosure 33 on the front side and fold the side platform 32. After folding, pull up the handle 53 of the front drive wheel 51 to move the vehicle.

[0068] During transportation, the enclosure 33 is completely dismantled, and the side platform 32 is also dismantled. Both the enclosure 33 and the side platform 32 are placed on the central platform 31. The support legs 12 are folded to reduce the volume and facilitate transportation.

[0069] Furthermore, the support base 1 is provided with four support legs 12, which are hinged to the side of the support base 1, and the support legs 12 are provided with telescopic feet.

[0070] Furthermore, such as Figure 3-4 As shown, the support base 1 is provided with a hinge seat 13, and the support leg 12 is hinged to the hinge seat 13. The hinge seat 13 is provided with a locking member 14, which includes a locking pin 141 and a locking hole 142. The locking holes 142 are respectively provided on the hinge seat 13 and the support leg 12. When the support leg 12 is extended, the locking holes 142 of the support leg 12 and the hinge seat 13 coincide, and the locking pin 141 is inserted into the two locking holes 142 to achieve fixation. When the support leg 12 is retracted, the locking pin 141 only passes through the locking hole 142 of the hinge seat 13, and the locking pin 141 contacts the side wall of the support leg 12 to restrict its movement and achieve locking.

[0071] The support leg 12 is connected by a hinge. Compared with the traditional telescopic connection, this connection method has less friction, making it easier to unfold the support leg 12, reducing the difficulty of unfolding the support leg 12 and shortening the unfolding time of the support leg 12.

[0072] Furthermore, the lengths of the two support legs 12 on the working side are shorter than the lengths of the two support legs 12 on the closed side.

[0073] Compared with the traditional telescopic support leg 12, the length adjustment flexibility of the support leg 12 in this application is poor. If the length of the support leg 12 on the working side is too long, the distance between the bearing platform 3 and the working wall will be too large, which will make it inconvenient for workers to work and will also increase the danger to workers. Therefore, in order to change this defect, this application shortens the length of the support leg 12 on the working side. This design can reduce the distance between the working side and the working wall and improve the safety of workers.

[0074] Furthermore, the support base 1 is provided with a walking mechanism 5, which includes a front drive wheel 51 and a rear driven wheel 52. The front drive wheel 51 is located at the center of the front side of the support base 1, and the rear driven wheel 52 is located on both sides of the rear of the support base 1. The front drive wheel 51 is connected to a handle 53.

[0075] Two rear driven wheels 52 are connected by bearings and shafts and are located on both sides of the rear end of the support base 1; while two front drive wheels 51 are connected in parallel and located at the center of the front side. This shortens the distance between the two front drive wheels 51, improves the load-bearing capacity, avoids the situation where the shaft between the drive wheels is too long and is prone to breakage under pressure, and reduces the maintenance rate.

[0076] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0077] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0078] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A hydraulic lifting platform with safety protection, characterized in that, The system includes a support base, a load-bearing platform on top of the support base, and a lifting mechanism connecting the load-bearing platform and the support base. It also includes a protective mechanism, which includes a maintenance protection component and a platform blocking component; the maintenance protection component is located between the support base and the lifting mechanism and is rotatably connected to the support base; the platform blocking component is fixed to the side of the carrying platform near the lifting mechanism.

2. The hydraulic lifting platform with safety protection according to claim 1, characterized in that, There is a maintenance space between the support base and the lifting mechanism. The maintenance protective component is located in the maintenance space. The maintenance protective component is hinged to the support base and can rotate from the horizontal direction to the vertical direction.

3. A hydraulic lifting platform with safety protection according to claim 2, characterized in that, When the maintenance protective component is in a vertical position, its end away from the support base abuts against the lifting mechanism; when the maintenance protective component is in a horizontal position, the maintenance protective component and the support base are in contact.

4. A hydraulic lifting platform with safety protection according to claim 3, characterized in that, The lifting mechanism passes through the carrying platform, and there is a gap between the lifting mechanism and the carrying platform. At the gap, the platform blocking member is set perpendicular to the carrying platform.

5. A hydraulic lifting platform with safety protection according to claim 4, characterized in that, The protective mechanism also includes a lifting isolation component, which is attached to the side wall of the lifting mechanism at the gap.

6. A hydraulic lifting platform with safety protection according to claim 1, characterized in that, The bottom surface of the support base is provided with two transport protection bars. The transport protection bars are hollow inside and open at both ends. The openings are located on the side of the support base, and the two transport protection bars are parallel to each other.

7. A hydraulic lifting platform with safety protection according to claim 1, characterized in that, The support platform includes a central platform and two detachably connected side platforms. The lifting mechanism includes two sets of hydraulic lifting components. The central platform is located between the two sets of hydraulic lifting components, and the side platforms are located on the other side of the hydraulic lifting components. The side platforms are foldable.

8. A hydraulic lifting platform with safety protection according to claim 1, characterized in that, The support base has four support legs, which are hinged to the side of the support base, and the support legs are equipped with telescopic feet.

9. A hydraulic lifting platform with safety protection according to claim 8, characterized in that, The support platform is divided into a working side and a closed side, and the length of the two support legs corresponding to the working side is less than the length of the two support legs corresponding to the closed side.

10. A hydraulic lifting platform with safety protection according to claim 1, characterized in that, The support base is equipped with a walking mechanism, which includes a front drive wheel and a rear driven wheel. The front drive wheel is located at the center of the front side of the support base, and the rear driven wheels are located on both sides of the rear of the support base.

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