Space posture keeping device for jack

Abstract

The utility model provides a jack space posture keeping device which comprises sliding supports, the sliding supports are arranged on the two sides of the waist of scissor jacks, rod pieces are rotatably installed on the sliding supports, and the scissor jacks are connected through the rod pieces. The rod pieces are used for limiting the scissor jacks to rotate around the vertical axes of the scissor jacks, lead screws of the scissor jacks are connected through transmission shafts, the scissor jacks are connected in series through the rod pieces, and the uniformity of the spatial postures of the scissor jacks can be kept. The rod piece also serves as a rotating shaft to transmit torque, the multiple lead screws are driven by the mechanical transmission box to rotate synchronously, and synchronous movement of the multiple scissor jacks can be kept. The driving mechanism is relatively low in cost, easy to achieve full-point driving of the flat single-shaft tracking support and relatively high in safety degree.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic power generation tracking brackets, and specifically relates to a jack spatial attitude maintaining device. Background Art

[0002] In recent years, scissor jacks have often been applied to the field of photovoltaic brackets in photovoltaic power stations. Among the existing scissor jacks used for photovoltaic brackets in photovoltaic power stations, since scissor jacks usually need to be used in series when applied to photovoltaic power stations, the spatial attitude unity and drive synchronization of multiple scissor jacks are basic requirements that must be met. However, when the existing scissor jacks are put into use, it is difficult to ensure the unity of the spatial attitudes of several scissor jacks and to keep multiple scissor jacks moving synchronously. Since both the upper and lower parts of a single jack are hinge points, when it is subjected to a slight horizontal external force, it is extremely easy to have a tendency to rotate around the vertical axis (Z-axis), which is extremely unfavorable for maintaining the unity of the spatial attitudes of multiple jacks. It will also cause the joint parts of both ends of the intermediate transmission shaft and the lead screw to easily appear in a folded angle state, which is even more unfavorable for the high-speed operation and heavy-load operation of the transmission system.

[0003] Therefore, it is necessary to develop a scissor jack maintaining device with a new structure that can meet its application in the tracking bracket of a photovoltaic power station, meet the drive function requirements of the photovoltaic tracking bracket, and prevent itself from rotating around the vertical axis. Content of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a jack spatial attitude maintaining device, including: a plurality of scissor jacks, rods, and sliding supports;

[0005] One sliding support is arranged on each of the two shear arms of the scissor jack. The two sliding supports are symmetrically arranged on both sides of the scissor jack. The rod penetrates through all the sliding supports, and the rod is movably connected to the sliding supports. The rod is connected to the lead screw on the scissor jack through a mechanical transmission box.

[0006] Furthermore, at least one of the mechanical transmission boxes is provided with a driving motor, and the driving motor is used to drive the rod to rotate through the mechanical transmission box.

[0007] Furthermore, the rod is a thin-walled steel pipe.

[0008] Furthermore, rod installation holes are formed on both sides of the sliding support, and the rod passes through the rod installation holes.

[0009] Furthermore, one of the two rod installation holes is a circular hole, and the other is a vertical long hole.

[0010] Further, bolt mounting holes are provided on the sliding support.

[0011] The beneficial effects of the present utility model are as follows: The rods connect multiple scissor jacks in series, which can maintain the unity of their spatial postures. The rods also serve as rotating shafts to transmit torque, drive multiple lead screws to rotate synchronously through a mechanical transmission box, and keep multiple scissor jacks moving synchronously. This driving mechanism has relatively low costs, is easy to achieve full-point driving of the flat single-axis tracking bracket, and has relatively high safety. Description of the Drawings

[0012] Figure 1 Schematic diagram of the transmission of the scissor jack in the prior art (vertical elevation view);

[0013] Figure 2 Schematic diagram of the transmission of the scissor jack in the prior art (top plan view);

[0014] Figure 3 Schematic diagram of the transmission of the scissor jack of the present utility model (vertical elevation view);

[0015] Figure 4 Schematic diagram of the transmission of the scissor jack of the present utility model (top plan view);

[0016] Figure 5 Drawing of the sliding support configured for the present utility model (three views).

[0017] Wherein, 1 - scissor jack, 2 - transmission shaft, 3 - lead screw, 4 - motor reducer, 5 - rod, 6 - sliding support, 601 - bolt mounting hole, 602 - steel pipe mounting hole, 7 - mechanical transmission box. Detailed Description of the Embodiment

[0018] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation of the present utility model.

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 should not be construed as a limitation of the present utility model.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" 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 direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] Embodiment 1

[0022] As Figure 1-2 a scissor jack of the prior art.

[0023] As Figure 3-4 shown, a jack spatial attitude maintaining device of this embodiment includes: a plurality of scissor jacks 1, a rod member 5, and a sliding support 6. A sliding support 6 is provided on each of the two shear arms of the scissor jack 1, and the two sliding supports 6 are symmetrically arranged on both sides of the scissor jack 1. The rod member 5 passes through all the sliding supports 6, and the rod member 5 is movably connected to the sliding supports 6. The rod member 5 is connected to the lead screw 3 on the scissor jack 1 through a mechanical transmission box 7. The rod member 5 is a thin-walled steel pipe 5. In actual engineering, the distance between two scissor jacks 1 is often more than 3 meters, and even can reach about 10 meters. The total length after a plurality of scissor jacks 1 are connected in series can reach more than dozens of meters. The mid-span deflection of the thin-walled steel pipe 5 cannot be ignored. In engineering practice, it is advisable to use the thin-walled steel pipe 5, which is more economical and safe.

[0024] A plurality of the scissor jacks 1 are connected in series through the rod member 5, so that the rotation of the plurality of scissor jacks 1 around the vertical axis (Z-axis) can be restricted, and the spatial attitudes of the plurality of scissor jacks 1 can be kept unified.

[0025] At least one driving motor 4 is provided in the mechanical transmission box 7, and the driving motor 4 is used to drive the rod member 5 to rotate through the mechanical transmission box 7.

[0026] Since the spatial attitudes of the rod member 5 and the lead screw 3 of the scissor jack 1 are always in a dynamically parallel state, after the rod member 5 and the lead screw 3 of the scissor jack 1 are combined by using the mechanical transmission box 7, the rotation of one rod member 5 will drive the rotation of the lead screws 3 of multiple scissor jacks 1, so that the synchronous lifting and lowering movements of the multiple scissor jacks 1 can be maintained. Here, the rod member 5 is both a transmission component of the transmission system and a structural component for the multiple scissor jacks 1 to maintain a unified spatial attitude.

[0027] Both sides of the sliding support 6 are provided with rod installation holes 602, and the through-length steel pipe 5 is rotatably arranged in the rod installation holes 602. The through-length steel pipe 5 can both rotate and axially slide in the rod installation holes 602 of multiple sliding supports 6, fully meeting the variable-distance movement of the sliding supports 6 installed on the side of the scissor jack 1.

[0028] Both sides of the sliding support 6 are provided with rod installation holes 602, and the rod 5 passes through the rod installation holes 602.

[0029] As Figure 5 Shown are the three views of the sliding support 6. One of the two rod installation holes 602 is a circular hole, and the other is a vertical long hole, which is convenient for adapting to the spatial attitude error caused by the installation of the scissor jack 1, avoiding difficulties in pipe threading, and actively adapting and matching. Specifically, two sliding supports 6 are installed on the side of each scissor jack 1. The cooperation between the steel pipe installation hole 602 of the sliding support 6 and the through-length steel pipe 5 should adopt a loose fit, leaving enough clearance for the through-length steel pipe 5 to rotate and axially slide in the steel pipe installation hole 602, facilitating the variable-distance movement between the two sliding supports 6.

[0030] As Figure 5 Shown, the top of the sliding support 6 is provided with bolt installation holes 601, and the sliding support 6 is bolted to the bolt installation holes on the scissor jack 1 through the bolt installation holes 601.

[0031] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A jack space posture maintaining device, characterized in that , comprising: a plurality of scissor jacks (1), rods (5) and sliding supports (6); A sliding support (6) is provided on each of the two shear arms of the scissor jack (1), and the two sliding supports (6) are symmetrically arranged on both sides of the scissor jack (1). The rod (5) passes through all the sliding supports (6), and the rod (5) is movably connected to the sliding supports (6). The rod (5) is connected to the lead screw (3) on the scissor jack (1) through a mechanical transmission box (7).

2. The jack spatial posture maintaining device according to claim 1, characterized in that: At least one of the mechanical transmission boxes (7) is provided with a driving motor (4), and the driving motor (4) is used to drive the rod (5) to rotate through the mechanical transmission box (7).

3. The jack space posture maintaining device according to claim 1, characterized in that: The rod (5) is a thin-walled steel pipe.

4. The jack spatial posture maintaining device according to claim 1, characterized in that: Rod mounting holes (602) are provided on both sides of the sliding support (6), and the rod (5) passes through the rod mounting holes (602).

5. The jack spatial posture maintaining device according to claim 4, characterized in that: One of the two rod mounting holes (602) is a circular hole, and the other is a vertical long hole.

6. The jack spatial posture maintaining device according to claim 1, characterized in that: The sliding support (6) is provided with a bolt mounting hole (601).

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