CN221759292U - Lifting equipment and installation equipment - Google Patents

Abstract

The embodiment of the present application discloses a hanger and installation equipment, the hanger includes a frame component and an adsorption component, the adsorption component includes a plurality of suction cups, each crossbeam is provided with suction cups distributed at intervals, some suction cups on two adjacent crossbeams constitute an adsorption element, and can operate to adsorb a photovoltaic panel, each adsorption element includes a first suction cup group and a second suction cup group, and the plurality of first suction cup groups and the plurality of second suction cup groups correspond to a vacuum pumping component respectively. The hanger and installation equipment provided by the embodiment of the present application divides the suction cups of each adsorption element into two groups, and each group of suction cups is evacuated to provide negative pressure through an independent vacuum pumping component, so that the semi-finished photovoltaic panel array formed by assembling a single photovoltaic panel can be grabbed and lifted at one time for assembly operation, thereby improving the installation efficiency of the photovoltaic panel while ensuring the reliability of the photovoltaic panel lifting process.

Description

Lifting equipment and installation equipment

Technical Field

The present application belongs to the field of photovoltaic technology, and in particular to a hanger and installation equipment.

Background Art

The installation process of existing photovoltaic panels is mainly done by manual assembly. The photovoltaic brackets are large in size and each photovoltaic panel is heavy, resulting in a huge workload for manual on-site installation. In addition, the dimensions need to be repeatedly measured on site, resulting in a long construction period and low installation efficiency.

Utility Model Content

The embodiment of the present application provides a hoist and installation equipment, which can grab and lift a semi-finished photovoltaic panel array formed by assembling individual photovoltaic panels at one time for assembly operations, thereby improving the installation efficiency of the photovoltaic panels.

On the one hand, an embodiment of the present application provides a hanger, which includes a frame assembly and an adsorption assembly, the frame assembly includes at least one main beam extending along a first direction and a plurality of cross beams extending along a second direction and spaced apart from each other, the main beam and the cross beams being intersectingly arranged, the adsorption assembly includes a plurality of suction cups, each of the cross beams is provided with the suction cups spaced apart along the second direction, some of the suction cups on two adjacent cross beams constitute an adsorption element, and can be operated to adsorb a photovoltaic panel.

According to one aspect of the embodiments of the present application, each of the adsorption elements includes more than two suction cup groups, each of the suction cup groups is constructed so that it is independently connected to a corresponding vacuum pumping component, and the multiple suction cup groups connected to the same vacuum pumping component are in the same passage, and each of the vacuum pumping components operates independently to independently provide negative pressure to the passage corresponding to itself.

According to one aspect of an embodiment of the present application, each of the suction cup groups constituting each of the adsorption elements is a first suction cup group and a second suction cup group, and either of the first suction cup group and the second suction cup group includes a plurality of suction cups arranged at intervals and has a preset rated adsorption force so that it can independently operate to adsorb one of the photovoltaic panels.

According to one aspect of the embodiments of the present application, each of the vacuum pumping components includes a gas collecting element, each of the gas collecting elements includes two gas collecting pipe groups arranged in parallel, and each of the gas collecting pipe groups includes at least one gas collecting pipe extending along the first direction; each of the gas collecting pipes is connected to one of the first suction cup group and the second suction cup group, and is a rigid structure with a strip-shaped cavity.

According to one aspect of an embodiment of the present application, each of the vacuum extraction components also includes a vacuum pump and a connecting pipe group, the vacuum pump corresponds to one of the first suction cup group and the second suction cup group to provide negative pressure thereto, and the connecting pipe group is used to form a passage between the vacuum pump, the gas collecting pipe, and one of the first suction cup group and the second suction cup group.

According to one aspect of an embodiment of the present application, the connecting pipe group includes a primary branch pipe and a secondary branch pipe group, the primary branch pipe is used to connect the vacuum pump and the corresponding gas collecting pipe; the secondary branch pipe group includes more than two secondary branch pipes, and the two ends of the secondary branch pipes are respectively connected to the corresponding gas collecting pipe and the suction cup.

According to one aspect of an embodiment of the present application, the first suction cup group and the second suction cup group corresponding to each of the photovoltaic panels respectively include two suction cups, and the connecting line contour of the four suction cups matches the outer contour of the photovoltaic panel, and one suction cup corresponds to one secondary branch pipe; one of each of the first suction cup groups and each of the second suction cup groups is connected to the corresponding gas collecting pipe through the corresponding two secondary branch pipes.

According to one aspect of an embodiment of the present application, the frame assembly includes m beams, and n suction cups are spaced apart on each beam; the 2i-1th suction cup on the 2j-1th beam and the 2i-th suction cup on the 2j-1th beam constitute the first suction cup group, and the 2i-1th suction cup on the 2j-1th beam and the 2i-th suction cup on the 2j-1th beam constitute the second suction cup group; wherein, j ranges from 1 to m/2, m is a positive integer, i ranges from 1 to n/2, and n is a positive integer.

According to one aspect of the embodiment of the present application, end beams are connected to both ends of the main beam, the cross beam is vertically connected to the main beam, and the top of the cross beam is provided with a cable storage frame and an electric control box arranged at intervals.

According to one aspect of an embodiment of the present application, the sling also includes a distance measuring piece, which is correspondingly installed on at least one of the main beam and the cross beam; the distance measuring piece is a strain probe, and the strain probe is provided with a sensing head at one end facing the photovoltaic panel along the third direction, and when the adsorption element is operating, the sensing head is suitable for contacting and fitting with the photovoltaic panel.

According to one aspect of an embodiment of the present application, the distance measuring device is a proximity switch, and the bottom end of the proximity switch has a sensing surface. When the adsorption element is operating, there is a distance d1 between the sensing surface and the photovoltaic panel along the third direction, and the distance d1 corresponds to the elastic compression d2 generated by the suction cup.

On the other hand, an embodiment of the present application provides an installation device, which includes a lifting component and a sling, wherein the sling is any one of the slings described above, and the lifting component and the sling are connected to each other.

According to another aspect of an embodiment of the present application, the installation equipment also includes a walking component, which is connected to the hanger to adjust the positions of the lifting component and the hanger; when the walking component moves to the target position, the hanger operates to install the photovoltaic array semi-finished product.

The lifting tool and installation equipment provided in the embodiments of the present application are integrated with a plurality of suction cups distributed in an array through the installation of a frame component, and through reasonable arrangement and layout, some of the suction cups on two adjacent beams constitute an adsorption element to act on each photovoltaic panel in the semi-finished photovoltaic panel array, and the suction cups of each adsorption element are divided into two groups, and each group of suction cups is evacuated by an independent vacuum pumping component to provide negative pressure. Therefore, the semi-finished photovoltaic panel array formed by assembling single photovoltaic panels can be grasped and lifted at one time for assembly operation, thereby improving the installation efficiency of the photovoltaic panels and ensuring the reliability of the photovoltaic panel lifting process.

BRIEF DESCRIPTION OF THE DRAWINGS

The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

FIG1 is a schematic structural diagram of a semi-finished photovoltaic panel array according to an embodiment of the present application;

FIG2 is a schematic structural diagram of a semi-finished photovoltaic panel array and a hanger according to an embodiment of the present application;

FIG3 is a side view of the sling according to an embodiment of the present application;

FIG4 is a schematic diagram of the arrangement of a semi-finished photovoltaic panel array and an adsorption assembly according to an embodiment of the present application;

5 is a schematic diagram of a partial pipeline arrangement connecting a plurality of first suction cup groups and a vacuum pump according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a local piping arrangement connecting a plurality of second suction cup groups and a vacuum pump according to an embodiment of the present application.

In the drawings, the drawings are not necessarily drawn to scale.

Reference numerals:

Main beam 1; cross beam 2; suction cup 3; first suction cup group 4; second suction cup group 5; gas collecting pipe 6;

Connecting pipe group 7; primary branch pipe 71; secondary branch pipe 72;

End beam 8; cable storage frame 81; electric control box 82;

Distance measuring piece 9;

Photovoltaic panel A; purlin A1; diagonal beam A2;

Vacuum pump B; distance measurement d1; elastic compression d2; hanging point C;

The first direction is X1; the second direction is X2; and the third direction is X3.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

As shown in FIG1 , the product that needs to be hoisted by the hoist provided in the embodiment of the present application is the semi-finished photovoltaic panel array as a whole shown in FIG1 . It can be seen from FIG1 that the semi-finished photovoltaic panel array includes a plurality of purlins A1, a plurality of inclined beams A2, and a plurality of photovoltaic panels A. The plurality of purlins A1 are spaced apart from each other and arranged in parallel, the plurality of inclined beams A2 are spaced apart from each other and arranged in parallel, the purlins A1 and the inclined beams A2 intersect and overlap to form a frame, and the plurality of photovoltaic panels A are arranged in an array and installed on the side of the purlins A1 away from the inclined beams A2 to form a semi-finished photovoltaic panel array.

The assembly of the semi-finished photovoltaic panel array can be carried out in the factory. Compared with the on-site assembly of outdoor photovoltaic panels, the assembly process can be carried out with professional equipment, which is conducive to improving the installation accuracy and efficiency. When installing the semi-finished photovoltaic panel array that has been assembled, the hoist and installation equipment provided in the embodiment of the present application can be used to adsorb, transfer and install the semi-finished photovoltaic panel array.

As shown in FIG. 2-FIG 6 , according to one aspect of an embodiment of the present application, the present application provides a hanger, which includes a frame assembly and an adsorption assembly, and can accurately and stably grab assembled photovoltaic panel semi-finished products at one time.

Specifically, as shown in Figure 2, the hanger includes a frame assembly and an adsorption assembly, the frame assembly includes at least one main beam 1 extending along a first direction X1 and a plurality of cross beams 2 extending along a second direction X2 and spaced apart from each other, the main beam 1 and the cross beams 2 are intersectingly arranged, the adsorption assembly includes a plurality of suction cups 3, each cross beam 2 is provided with suction cups 3 spaced apart along the second direction X2, some of the suction cups 3 on two adjacent cross beams 2 constitute an adsorption element, and can be operated to adsorb a photovoltaic panel A.

Each adsorption element includes more than two suction cup groups, and each suction cup group is constructed to be independently connected to a corresponding vacuum pumping component. Multiple suction cup groups connected to the same vacuum pumping component are in the same passage, and each vacuum pumping component operates independently to independently provide negative pressure to its corresponding passage. Each suction cup group constituting each adsorption element is a first suction cup group 4 and a second suction cup group 5. Either the first suction cup group 4 and the second suction cup group 5 includes a plurality of suction cups 3 arranged at intervals and has a preset rated adsorption force so that it can independently operate to adsorb a photovoltaic panel A.

It can be understood that, referring to Figure 2, multiple spaced beams 2 can be used to fix the suction cups 3, and multiple independent photovoltaic panels A are arranged according to a predetermined pattern to form a photovoltaic array semi-finished product, which needs to be hoisted and installed on a preset bracket to complete the entire photovoltaic product production and installation process. In the process of using the hoist to adsorb, lift, transfer and install the photovoltaic array semi-finished product, one adsorption element of the hoist corresponds to one photovoltaic panel A, and one photovoltaic panel A corresponds to one first suction cup group 4 and one second suction cup group 5, and the corresponding first suction cup group 4 and second suction cup group 5 are respectively connected to different vacuum components. In other words, the negative pressure sources inside the first suction cup group 4 and the second suction cup group 5 are independent of each other.

Therefore, the first suction cup group 4 and the second suction cup group 5 on each photovoltaic panel A have rated load capacity individually. In other words, half of the suction cups 3 on each photovoltaic panel A have rated load capacity. Even if individual suction cups are disturbed by factors such as dust and damaged sealing rings and leak and lose the ability of negative pressure adsorption, the entire adsorption assembly and dual-path vacuum assembly can still ensure the reliability of the photovoltaic panel lifting process.

In some embodiments, please refer to Figure 2, each vacuum assembly includes a gas collecting element, each gas collecting element includes two gas collecting pipe groups arranged in parallel, each gas collecting pipe group includes at least one gas collecting pipe 6 extending along the first direction X1, each gas collecting pipe 6 is connected to one of the first suction cup group 4 and the second suction cup group 5, each vacuum assembly also includes a vacuum pump B and a connecting pipe group 7, the vacuum pump B corresponds to one of the first suction cup group 4 and the second suction cup group 5 to provide negative pressure thereto, and the connecting pipe group 7 is used to form a passage between the vacuum pump B, the gas collecting pipe 6, and one of the first suction cup group 4 and the second suction cup group 5.

It can be understood that the vacuum pump B is used to provide negative pressure for the suction cup 3, and the air collecting pipes 6 are symmetrically arranged on both sides of the main beam 1. The suction cups 3 in each first suction cup group 4 and each second suction cup group 5 are diagonally arranged, and the suction cups 3 in each first suction cup group 4 and each second suction cup group 5 in the same adsorption element are respectively connected to different air collecting pipes 6, so that the first suction cup group 4 and the second suction cup group 5 can be at the end of independent exhaust pipelines.

In some embodiments, please refer to FIG. 5 and FIG. 6 , the connecting pipe group 7 includes a primary branch pipe 71 and a secondary branch pipe group, the primary branch pipe 71 is used to connect the vacuum pump B and the corresponding gas collecting pipe 6, the secondary branch pipe group includes more than two secondary branch pipes 72, and the two ends of the secondary branch pipe 72 are respectively connected to the corresponding gas collecting pipe 6 and the suction cup 3. The first suction cup group 4 and the second suction cup group 5 corresponding to each photovoltaic panel A respectively include two suction cups 3, and the connecting line profile of the four suction cups 3 matches the outer profile of the photovoltaic panel A. One suction cup 3 corresponds to one secondary branch pipe 72, and one of each first suction cup group 4 and each second suction cup group 5 is connected to the corresponding gas collecting pipe 6 through the corresponding two secondary branch pipes 72, and the gas collecting pipe 6 is a rigid structure with a strip-shaped cavity.

It can be understood that the strip-shaped cavity in the gas collecting pipe 6 provides an integrated channel for gas transfer during vacuuming for the first suction cup group 4 and the second suction cup group 5, and the gas collecting pipe 6 connects the vacuum pump B with the suction cups 3 in the first suction cup group 4 and the second suction cup group 5 through the first branch pipe 71 and the second branch pipe 72.

In some embodiments, please refer to Figures 2, 5 and 6, the frame assembly includes m beams 2, and n suction cups 3 are spaced apart on each beam 2; the 2i-1th suction cup 3 on the 2j-1th beam 2 and the 2i-th suction cup 3 on the 2j-1th beam 2 constitute a first suction cup group 4, and the 2i-1th suction cup 3 on the 2j-1th beam 2 and the 2i-th suction cup 3 on the 2j-1th beam 2 constitute a second suction cup group 5; wherein, j ranges from 1 to m/2, m is a positive integer, i ranges from 1 to n/2, and n is a positive integer.

It can be understood that the suction cups 3 in the first suction cup group 4 and the second suction cup group 5 are arranged diagonally, and there are four suction cups 3 on the same photovoltaic panel A. The two suction cups 3 arranged diagonally are in the same negative pressure adsorption branch. Even if any negative pressure system branch fails, or there is a problem with the sealing of any suction cup 3, the photovoltaic panel A can be stably and reliably adsorbed and transferred. The first suction cup group 4 and the second suction cup group 5 corresponding to the same photovoltaic panel A are respectively provided with multiple points, and one suction cup 3 is installed at one point, and the multiple suction cups 3 provide negative pressure suction to the photovoltaic panel A together.

In some embodiments, please refer to Figures 2 and 3, the two ends of the main beam 1 are connected to end beams 8, the cross beam 2 is vertically connected to the main beam 1, the top of the cross beam 2 is provided with spaced cable storage frames 81 and electric control boxes 82, and the main beam 1 is also provided with multiple hanging points C.

It can be understood that by setting the lifting point C on the main beam 1, it is convenient to transfer the lifting equipment. The crossbeam 2 and the end beam 8 are installed on the main beam 1 and constitute the overall frame of the lifting equipment body. The cable storage frame 81 and the electric control box 82 are installed on the upper side of the crossbeam 2, which are respectively used to thread cables and send instructions to control the movement of the lifting equipment.

In some embodiments, please refer to FIG. 3. When the adsorption element is operating, the suction cup 3 is constructed so that it is suitable for fitting with the photovoltaic panel A along the third direction X3 to generate an elastic compression d2. The sealing degree T between the suction cup 3 and the photovoltaic panel A corresponds to and is proportional to the elastic compression d2. The pressure P on the photovoltaic panel A corresponds to and is proportional to the elastic compression d2. The sling also includes a distance measuring piece 9. The distance measuring piece 9 is correspondingly installed on at least one of the main beam 1 and the cross beam 2. The distance measuring piece 9 is used to measure a monitoring signal reflecting the magnitude of the pressure P on the photovoltaic panel A. The elastic compression d2 includes a preset deformation critical value H1. The monitoring signal of the distance measuring piece 9 includes a signal critical value H2 corresponding to the deformation critical value H1.

It can be understood that, referring to Figure 3, the distance measuring piece 9 extends along the third direction X3 and is consistent with the compression direction of the suction cup 3. As the hanger approaches the photovoltaic panel A, the elastic compression d2 of the suction cup 3 gradually increases. When the elastic compression d2 reaches the deformation critical value H1, it means that the pressure applied by the hanger to the photovoltaic panel A reaches the critical value. Accordingly, the sealing degree T of the connection between the suction cup 3 and the photovoltaic panel A gradually increases, but at the same time, as the elastic compression d2 increases, the pressure P on the photovoltaic panel A gradually increases. If the pressure exceeds the maximum static load allowed by the photovoltaic panel A, the adsorption process between the suction cup 3 and the photovoltaic panel A will cause damage to the photovoltaic panel A.

Therefore, by monitoring the compression degree of the suction cup 3 through the distance measuring piece 9, the corresponding value of the pressure P that the photovoltaic panel A is borne can be obtained. When the monitoring signal of the distance measuring piece 9 reaches the signal critical value H2, the operator controls to stop the movement of the hanger toward the photovoltaic panel A, thereby maintaining the current elastic compression d2, sealing degree T and pressure P at a constant value, ensuring that the load applied by the hanger to the photovoltaic panel is within a reasonable range, which can not only ensure the stability and reliability of the lifting process, but also prevent the photovoltaic panel from being damaged due to pressure during the lifting process.

In some embodiments, the distance measuring member 9 is a strain probe, and a sensing head is provided at one end of the strain probe facing the photovoltaic panel A along the third direction X3. When the adsorption element is operating, the sensing head is suitable for contacting and fitting with the photovoltaic panel A.

It can be understood that when the sensing head is in contact with the photovoltaic panel A, the monitoring signal can measure the pressure between the suction cup and the photovoltaic panel A, and under the premise of ensuring the sealing of the suction cup, prevent the suction cup 3 from being pressed too tightly toward the photovoltaic panel A, causing excessive pressure applied by the hanger to the photovoltaic panel A, thereby avoiding the pressure exceeding the maximum static load allowed by the photovoltaic panel A.

In some embodiments, the distance measuring device 9 is a proximity switch having a sensing surface at its bottom. When the adsorption element is operating, there is a distance d1 between the sensing surface and the photovoltaic panel A along the third direction X3. The distance d1 corresponds to the elastic compression d2 generated by the suction cup 3.

It is understandable that as the elastic compression d2 changes, the distance measurement d1 will change synchronously. Therefore, the relative compression between the photovoltaic panel A and the suction cup 3 can be measured through the proximity switch, thereby reflecting the pressure applied by the hanger to the photovoltaic panel A. The pressure can be dynamically monitored to prevent the pressure from exceeding the maximum static load allowed by the photovoltaic panel A, thereby avoiding damage to the semi-finished photovoltaic array during the lifting process. Therefore, the hanger and installation equipment in the present application can ensure the sealing of the suction cup while ensuring that the load applied by the hanger to the photovoltaic panel is within a reasonable range, which can not only ensure the stability and reliability of the lifting process, but also prevent the photovoltaic panel from being damaged due to pressure during the lifting process.

On the other hand, an embodiment of the present application further provides an installation device, which includes a lifting component and a sling provided by any of the aforementioned embodiments, wherein the lifting component and the sling are connected to each other.

It can be understood that by controlling the lifting device, the relative distance between the hanger and the photovoltaic array semi-finished product can be changed to achieve compression and adsorption of the photovoltaic panel A. After the photovoltaic panel A is adsorbed by the suction cup 3, the photovoltaic panel A can be lifted and transferred to the mounting frame by controlling the lifting device.

In some embodiments, the installation equipment also includes a walking component, which is connected to the hanger to adjust the positions of the lifting component and the hanger. When the walking component moves to the target position, the hanger can cooperate with the lifting device to transfer and install the photovoltaic array semi-finished product.

Reference to "embodiment" in this application means that a particular feature, structure or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" 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, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

The term "plurality" used in the present application refers to two or more (including two).

Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (13)

1. A sling, characterized by comprising: A frame assembly comprises at least one main beam (1) extending in a first direction and a plurality of cross beams (2) extending in a second direction and spaced apart from each other, wherein the main beam (1) and the cross beams (2) are arranged to intersect with each other; and The adsorption component comprises a plurality of suction cups (3), wherein the suction cups (3) are spaced apart on each of the cross beams (2) along the second direction, and a portion of the suction cups (3) on two adjacent cross beams (2) constitute an adsorption element and is capable of adsorbing a photovoltaic panel (A). 2. The sling according to claim 1 is characterized in that each of the adsorption elements includes more than two suction cup groups, each of the suction cup groups is constructed so that it is independently connected to a corresponding vacuum pumping component, and the multiple suction cup groups connected to the same vacuum pumping component are in the same passage, and each of the vacuum pumping components operates independently to independently provide negative pressure to the corresponding passage. 3. The hanger according to claim 2 is characterized in that each of the suction cup groups constituting each of the adsorption elements is a first suction cup group (4) and a second suction cup group (5), and either of the first suction cup group (4) and the second suction cup group (5) includes a plurality of suction cups (3) arranged at intervals and has a preset rated adsorption force so that it can independently operate to adsorb one photovoltaic panel (A). 4. The sling according to claim 3, characterized in that each of the vacuum pumping components comprises a gas collecting element, each of the gas collecting elements comprises two gas collecting pipe groups arranged in parallel, and each of the gas collecting pipe groups comprises at least one gas collecting pipe (6) extending along the first direction; Each of the air collecting pipes (6) is correspondingly connected to one of the first suction cup group (4) and the second suction cup group (5), and is a rigid structure having a strip-shaped cavity. 5. The sling according to claim 4, characterized in that each of the vacuum extraction components further comprises: a vacuum pump (B), the vacuum pump (B) corresponding to one of the first suction cup group (4) and the second suction cup group (5) to provide negative pressure thereto; and A connecting pipe group (7) is used to connect the vacuum pump (B), the gas collecting pipe (6), and one of the first suction cup group (4) and the second suction cup group (5) to form the passage. 6. The sling according to claim 5, characterized in that the connecting pipe group (7) comprises: A primary branch pipe (71) for connecting the vacuum pump (B) and the corresponding gas collecting pipe (6); and The secondary branch pipe group comprises more than two secondary branch pipes (72), and the two ends of the secondary branch pipes (72) are respectively connected to the corresponding gas collecting pipe (6) and the suction cup (3). 7. The hanger according to claim 6, characterized in that the first suction cup group (4) and the second suction cup group (5) corresponding to each photovoltaic panel (A) respectively include two suction cups (3), and the connecting line profile of the four suction cups (3) matches the outer profile of the photovoltaic panel (A), and one suction cup (3) corresponds to one secondary branch pipe (72); Each of the first suction cup groups (4) and each of the second suction cup groups (5) is connected to the corresponding gas collecting pipe (6) through the corresponding two secondary branch pipes (72). 8. The sling according to claim 3, characterized in that the frame assembly comprises m beams (2), and n suction cups (3) are spaced apart on each beam (2); The 2i-1th suction cup (3) on the 2j-1th crossbeam (2) and the 2i-th suction cup (3) on the 2j-th crossbeam (2) constitute the first suction cup group (4), and the 2i-1th suction cup (3) on the 2j-th crossbeam (2) and the 2i-th suction cup (3) on the 2j-1th crossbeam (2) constitute the second suction cup group (5); Among them, j ranges from 1 to m/2, m is a positive integer, i ranges from 1 to n/2, n is a positive integer. 9. The sling according to claim 1 is characterized in that it also includes a distance measuring piece (9), and the distance measuring piece (9) is correspondingly installed on at least one of the main beam (1) and the cross beam (2), the two ends of the main beam (1) are connected with end beams (8), the cross beam (2) is vertically connected to the main beam (1), and the top of the cross beam (2) is provided with a cable storage frame (81) and an electric control box (82) arranged at intervals. 10. The hanger according to claim 9 is characterized in that the distance measuring piece (9) is a strain probe, and a sensing head is provided at one end of the strain probe along a third direction facing the photovoltaic panel (A), and when the adsorption element is operating, the sensing head is suitable for contacting and fitting with the photovoltaic panel (A). 11. The sling according to claim 9 is characterized in that the distance measuring member (9) is a proximity switch, and the bottom end of the proximity switch has a sensing surface. When the adsorption element is operating, there is a distance measurement (d1) between the sensing surface and the photovoltaic panel (A) along a third direction, and the distance measurement (d1) corresponds to the elastic compression amount (d2) generated by the suction cup (3). 12. A mounting device, characterized in that the mounting device comprises: Lifting components; and A sling, wherein the sling is a sling according to any one of claims 1 to 11; Wherein, the lifting component and the sling are connected to each other. 13. The installation device according to claim 12, characterized in that it also includes a traveling component, wherein the traveling component is connected to the sling to adjust the position of the lifting component and the sling; When the walking component moves to the target position, the hanger operates to install the semi-finished photovoltaic array product.