A storage structure of a photovoltaic energy storage all-in-one machine

Abstract

The utility model belongs to the technical field of storage structure, concretely relates to a storage structure of photovoltaic energy storage integrated machine, including main box, apron and clamping support assembly, be equipped with the placing inner chamber in the main box, apron sets up in the opening place of placing inner chamber, clamping support assembly includes support limiting frame and at least one buckling clamping part, support limiting frame is equipped with passageway in, and support limiting frame is used for installing to the outside assembly surface, one side end of buckling clamping part is connected in the outside surface of main box, the other side end of buckling clamping part sets up and passes into passageway, and the other side end of buckling clamping part is clamped in the inside end of support limiting frame, and the outside wall of main box is in abutment with support limiting frame. The utility model can promote the stability of the storage structure assembly to the outside assembly surface, and can promote the convenience of the storage structure disassembly from the outside assembly surface.

Description

Technical Field

[0001] This utility model belongs to the field of storage structure technology, and in particular relates to a storage structure for a photovoltaic energy storage integrated machine. Background Technology

[0002] A photovoltaic energy storage integrated system consists of the following components: photovoltaic panels, an inverter, energy storage equipment, and a charge / discharge controller. The photovoltaic panels are responsible for converting solar energy into direct current (DC) power; the inverter is responsible for converting DC power into alternating current (AC) power; the energy storage equipment stores the electrical energy generated by the photovoltaic system; and the charge / discharge controller controls the charging and discharging process of the energy storage system to ensure the long-term reliable operation of the energy storage equipment.

[0003] However, the installation and disassembly of the storage structure of some existing photovoltaic energy storage units are complex on the assembly base and require the use of many tools, thus reducing operational efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a storage structure for a photovoltaic energy storage integrated machine, which addresses the shortcomings of existing technologies and solves the technical problem of complex installation and disassembly operations on the assembly base surface.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A storage structure for a photovoltaic energy storage integrated machine includes a main housing, a cover plate, and a snap-fit ​​support assembly. The main housing has a placement cavity; the cover plate is positioned at the opening of the placement cavity; the snap-fit ​​support assembly includes a support limiting frame and at least one snap-fit ​​component; the support limiting frame has a channel; one end of the snap-fit ​​component is connected to the outer surface of the main housing; the other end of the snap-fit ​​component extends into the channel and is snapped into the inner end of the support limiting frame; and the outer wall of the main housing abuts against the support limiting frame.

[0007] Preferably, the support limiting frame has a first limiting plate on its inner surface facing the channel; one end of the first limiting plate extends into the channel; and the outer surface of the first limiting plate is engaged between the fastening and engaging component and the main housing.

[0008] Preferably, the outer surface of the support limiting frame away from the channel is provided with a second limiting plate; the outer surface of the second limiting plate is engaged between the fastening and engaging component and the main housing.

[0009] Preferably, the support limiting frame includes a support bracket, a second connecting folding plate, and a first connecting folding plate; the number of support brackets is at least two, and they are arranged side by side in sequence; the second connecting folding plate and the first connecting folding plate are respectively connected between two adjacent support brackets; and the support bracket, the second connecting folding plate, and the first connecting folding plate form the channel; the second limiting plate is connected to the outer surface of the first connecting folding plate away from the channel; the first limiting plate is connected to the inner surface of the second connecting folding plate facing the channel.

[0010] Preferably, the snap-fit ​​component includes an outer connecting straight section, a connecting curved section, an assembly straight section, and a guide inclined section connected in sequence; and the outer connecting straight section is connected to the outer surface of the main housing; one side surface of the assembly straight section is snapped onto the first limiting plate or the second limiting plate.

[0011] Preferably, the side surface of the assembly straight section away from the main housing is provided with a second locking side; the second locking side is detachably connected to the support limiting frame or the second limiting plate.

[0012] Preferably, the main housing is provided with at least two locking and limiting components inside;

[0013] A locking and limiting cavity is provided between the two locking and limiting components that are arranged opposite each other in the same horizontal direction;

[0014] And / or the locking and limiting component has a locking groove on one end facing the inner wall of the main housing; and the main housing also has a slot inside; the slot and the locking groove are set on the same horizontal plane.

[0015] Preferably, the locking and limiting component includes an abutting longitudinal portion, a supporting horizontal portion, and an assembly side portion; the assembly side portion is detachably connected to the interior of the main housing; one side end of the abutting longitudinal portion is connected to the assembly side portion; there are two supporting horizontal portions, which are respectively connected to the two sides of the abutting longitudinal portion; and the locking groove is formed between the abutting longitudinal portion, the supporting horizontal portion, and the assembly side portion.

[0016] Preferably, the interior of the main housing is further provided with an abutting protrusion; the abutting protrusion is arranged to protrude towards the interior of the placement cavity.

[0017] Preferably, the abutting protrusion is provided with a positioning shaft; one end of the positioning shaft extends toward the interior of the placement cavity; and the positioning shaft is positioned above the locking and limiting component.

[0018] Furthermore, a storage groove is provided on the side surface of the protrusion away from the placement cavity; the other end of the positioning shaft is inserted into the storage groove; and a rotating handle is movably provided on the other end of the positioning shaft.

[0019] The beneficial effects of this utility model are as follows: by using snap-fit ​​components to snap-fit ​​the storage structure onto the support limiting frame, the stability of the storage structure assembled onto the external assembly surface is improved, and the ease of disassembling the storage structure from the external assembly surface is also improved. Furthermore, by using snap-fit ​​components to insert into the channel and combining them with the main housing abutting against the support limiting frame, the assembly gap between the two is minimized, thereby reducing the overall assembly space occupied and improving the rationality of use. Attached Figure Description

[0020] The following will refer to the appendix. Figures 1-6 This section describes the features, advantages, and technical effects of exemplary embodiments of the present invention.

[0021] Figure 1 This is a structural diagram showing the disassembled state of the storage structure of a photovoltaic energy storage integrated machine according to an embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the main housing of the storage structure of a photovoltaic energy storage integrated machine according to an embodiment of the present invention;

[0023] Figure 3 This is a partial enlarged view of the main housing of the storage structure of a photovoltaic energy storage integrated machine according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the support and limiting frame of the storage structure of a photovoltaic energy storage integrated machine according to an embodiment of the present invention;

[0025] Figure 5 This is a cross-sectional view of the support and limiting frame of the storage structure of a photovoltaic energy storage integrated machine according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the snap-fit ​​component of the storage structure of a photovoltaic energy storage integrated machine according to an embodiment of the present invention.

[0027] In the diagram: 100 - Main housing; 101 - Inner cavity; 102 - Slot; 110 - Locking and limiting component; 111 - Longitudinal contact part; 112 - Horizontal support part; 113 - Locking groove; 114 - Assembly side; 120 - Contact protrusion; 121 - Storage slot; 122 - Positioning shaft; 123 - Rotation handle; 130 - Outer protective panel; 131 - Protective inner cavity; 140 - Supporting horizontal bar; 150 - Heat exchange fan; 160 - Heat exchange mesh plate; 170 - Installation edge; 17 1-Mounting slot; 220-Cover plate; 300-Snap-fit ​​support assembly; 310-Snap-fit ​​component; 311-Outer connecting straight section; 312-Connecting curved section; 313-Assembly straight section; 314-Guide inclined section; 315-Second locking side; 320-Support limiting frame; 321-Support bracket; 322-First limiting plate; 325-Second limiting plate; 3251-First locking side; 324-Second connecting folding plate; 323-First connecting folding plate; 326-Channel. Detailed Implementation

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is intended to particularly describe embodiments and not to limit the scope of this application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0029] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the embodiment description, "multiple" refers to two or more, unless otherwise specifically defined.

[0030] The term 'embodiment' means that a particular feature, structure, or characteristic described exists in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0031] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or multiple situations existing alone. In addition, the character " / " in this document generally indicates that the related objects before and after are in an "or" relationship.

[0032] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can also refer to a mechanical connection or an electrical connection. They can be directly connected or indirectly connected through an intermediate medium, manifesting as internal communication between two components or an interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0033] The following is in conjunction with the appendix Figures 1-6 The present invention will be described in further detail, but this is not intended to limit the scope of the present invention.

[0034] like Figure 1 As shown in one embodiment of this utility model, the storage structure of the photovoltaic energy storage integrated machine includes a main housing 100, a cover plate 200, and a snap-fit ​​support assembly 300. The main housing 100 has a placement cavity 101 inside. The cover plate 200 is disposed at the opening of the placement cavity 101 to control the opening or closing of the placement cavity 101. The snap-fit ​​support assembly 300 includes a support limiting frame 320 and at least one snap-fit ​​component 310. The support limiting frame 320 has a channel 326 inside and is used to be installed to an external mounting surface. One end of the snap-fit ​​component 310 is connected to the outer surface of the main housing 100. The other end of the snap-fit ​​component 310 is inserted into the channel 326 and snaps into the inner end of the support limiting frame 320. The outer wall of the main housing 100 abuts against the support limiting frame 320.

[0035] The technical solution of this utility model uses a snap-fit ​​component to snap-fit ​​the storage structure onto the support limiting frame, thereby promoting the stability of the storage structure when assembled onto the external assembly surface and facilitating the disassembly of the storage structure from the external assembly surface. Furthermore, by using a snap-fit ​​component inserted into a channel and combining it with the main housing abutting against the support limiting frame, the assembly gap between the two is minimized, thus reducing the overall assembly space occupied and improving the rationality of use.

[0036] Specifically, in some implementations, such as Figure 1 and 2 As shown, the main housing 100 has a mounting edge 170 on one side facing the cover plate 200; a mounting groove 171 is provided between the mounting edge 170 and the main housing 100; the cover plate 200 is snapped into the inner wall of the mounting groove 171. Wherein, as Figure 2As shown, the mounting edge 170 is arranged around one side surface of the main housing 100 toward the cover plate 200, and the inner side wall of the cover plate 200 abuts against the outer side wall of the mounting edge 170; and the inner side wall of the cover plate 200 is provided by a first screw passing through the first threaded hole of the cover plate 200 and the second threaded hole on the mounting edge 170; so as to facilitate the assembly convenience and stability between the main housing 100 and the cover plate 200.

[0037] Specifically, in some implementations, such as Figure 1 As shown, the top of the main housing 100 is provided with an outer protective enclosure 130; a protective inner cavity 131 is provided between the outer protective enclosure 130 and the main housing 100, and the protective inner cavity 131 is used to hide and protect exposed external devices (such as emergency stop switches).

[0038] Specifically, in some implementations, such as Figure 1 As shown, the inner bottom of the main housing 100 is provided with at least two supporting horizontal bars 140; the supporting horizontal bars 140 are arranged side by side at equal intervals along the length of the inner cavity 101. For example, Figure 2 As shown, the length direction is the 0X axis direction. This structure allows some components to be placed on the upper surface of two adjacent support crossbars 140, so that there is a heat dissipation space between the component and the inner bottom of the main housing 100, which helps to improve its service life.

[0039] Specifically, in some implementations, such as Figure 1 and 2 As shown, heat exchange fans 150 and heat exchange mesh plates 160 are provided on opposite sides of the main housing 100; and the heat exchange fans 150 and heat exchange mesh plates 160 are respectively connected to the placement cavity 101 to accelerate the heat dissipation of the components to be assembled inside, thereby helping to extend their service life.

[0040] Specifically, in some implementations, such as Figure 1 and 2 As shown in Figure 3, the main housing 100 has at least two locking and limiting components 110 inside; a locking and limiting inner cavity is provided between the two locking and limiting components 110 arranged opposite each other in the same horizontal direction, the locking and limiting inner cavity being used to abut against the outer surface of the battery cell assembly; and / or a locking groove 113 is provided on one end of the locking and limiting component 110 facing the inner wall of the main housing 100; the locking groove 113 is used to install a partition component (e.g., a partition plate or partition frame); and the main housing 100 also has a slot 102 inside; the slot 102 and the locking groove 113 are arranged on the same horizontal plane. Wherein, as Figure 2As shown, the horizontal plane is the X0Z plane. First installation method: This structure uses the slot 102 to house and install the partition components (e.g., partition plates or partition frames), combined with the locking action of the upper locking groove 113 on the partition components (e.g., partition plates or partition frames), thus allowing the partition components (e.g., partition plates or partition frames) to be installed first, followed by the assembly of the locking and limiting components 110; this improves the stability of the internal assembly. Second installation method: Without installing partition components (e.g., partition plates or partition frames), the battery cell assembly passes through the locking and limiting cavities between the four locking and limiting components 110 on the left, right, top, and bottom; then, the locking and limiting components 110 provide multi-point abutment assembly at the four positions (top, bottom, left, right) on the side surface of the battery cell assembly, achieving internal assembly stability.

[0041] Specifically, in some implementations, such as Figure 2 and 3 As shown, the locking and limiting component 110 includes an abutting longitudinal portion 111, a supporting horizontal portion 112, and an assembly side portion 114. The assembly side portion 114 is detachably connected to the interior of the main housing 100 by a fifth screw. One end of the abutting longitudinal portion 111 is connected to the assembly side portion 114. There are two supporting horizontal portions 112, which are respectively connected to the two ends of the abutting longitudinal portion 111. The locking groove 113 is formed between the abutting longitudinal portion 111, the supporting horizontal portion 112, and the assembly side portion 114. This structure forms a semi-enclosed locking groove 113 by the abutting longitudinal portion 111, the supporting horizontal portion 112, and the assembly side portion 114 to support and lock the partition components (such as partition plates or partition frames), thereby improving the stability and convenience of assembly.

[0042] Specifically, in some implementations, such as Figure 1 and 2 As shown, the main housing 101 is also provided with an abutment protrusion 120 inside; the abutment protrusion 120 is arranged to protrude towards the interior of the placement cavity 101 and is used to abut against the partition component (e.g., partition plate or partition frame); thereby realizing the clamping and supporting function of the left and right sides of the partition component (e.g., partition plate or partition frame), and further improving the stability of the assembly.

[0043] Specifically, in some implementations, such as Figure 1 and 2 As shown, a positioning shaft 122 is provided inside the abutment protrusion 120; one side end of the positioning shaft 122 extends toward the interior of the placement cavity 101; and the positioning shaft 122 is positioned above the locking and limiting member 110; so as to realize the clamping effect of the abutment protrusion 120 on the side surface of the partition member (e.g., partition plate or partition frame), and to realize the top abutment and limiting effect of the positioning shaft 122 on the partition member (e.g., partition plate or partition frame), thereby further improving the stability of the assembly.

[0044] Specifically, in some implementations, such as Figure 1 and 2 As shown, a storage groove 121 is provided on the side surface of the abutment 120 away from the placement cavity 101; the other end of the positioning shaft 122 is inserted into the storage groove 121; and a rotating handle 123 is movably provided on the other end of the positioning shaft 122. There are two positioning shafts 122, and the rotating handle 123 is a U-shaped rotating handle; the two ends of the U-shaped rotating handle are respectively movably connected to the positioning shaft 122 through corresponding rotating shafts.

[0045] Specifically, in some implementations, such as Figure 1 and 4 As shown in Figure 5, a first limiting plate 322 is provided on the inner surface of the support limiting frame 320 facing the channel 326; one end of the first limiting plate 322 extends into the channel 326; and the outer surface of the first limiting plate 322 is engaged between the fastening and engaging component 310 and the main housing 100. The first limiting plate 322 is a straight-section first limiting plate, and the straight-section first limiting plate is welded to the support limiting frame 32. This structure, through the internal first limiting plate engaging between the fastening and engaging component 310 and the main housing 100, promotes the stability of the storage structure assembled to the external mounting surface and facilitates the easy disassembly of the storage structure from the external mounting surface.

[0046] Specifically, in some implementations, such as Figure 1 and 4 As shown in Figure 5, a second limiting plate 325 is provided on the outer surface of the support limiting frame 320 away from the channel 326; the outer surface of the second limiting plate 325 is engaged between the fastening and engaging component 310 and the main housing 100. The second limiting plate 325 is a U-shaped second limiting plate; this U-shaped second limiting plate is welded to the support limiting frame 32. That is, there are at least two fastening and engaging components 310, one of which, a first limiting plate 322, is disposed inside the channel 326, and its outer surface is engaged between the fastening and engaging component 310 and the main housing 100; the other first limiting plate 322 is not disposed in the channel 326, and its outer surface is engaged between the fastening and engaging component 310 and the main housing 100; this can further promote the stability of the storage structure assembled to the external assembly surface, and also promote the convenience of disassembling the storage structure from the external assembly surface.

[0047] Specifically, in some implementations, such as Figure 4 and 5As shown, the support limiting frame 320 includes a support bracket 321, a second connecting folding plate 324, and a first connecting folding plate 323; the number of support brackets 321 is at least two, and they are arranged side by side in sequence; the second connecting folding plate 324 and the first connecting folding plate 323 are respectively connected between two adjacent support brackets 321; and the channel 326 is formed between the support brackets 321, the second connecting folding plate 324, and the first connecting folding plate 323; the second limiting plate 325 is connected to the outer surface of the first connecting folding plate 323 away from the channel 326; the first limiting plate 322 is connected to the inner surface of the second connecting folding plate 324 facing the channel 326. In some embodiments, such as... Figure 5 As shown, the support bracket 321 is a U-shaped support bracket; the second connecting plate 324 and the first connecting plate 323 are both L-shaped connecting plates; and the support bracket 321, the second connecting plate 324 and the first connecting plate 323 are welded together in pairs.

[0048] Specifically, in some implementations, such as Figures 4 to 6 As shown, the snap-fit ​​component 310 includes an outer connecting straight section 311, a connecting curved section 312, an assembly straight section 313, and a guide inclined section 314 connected in sequence. The outer connecting straight section 311 is connected to the outer surface of the main housing 100 by welding or screws. One side surface of the assembly straight section 313 is snapped onto the first limiting plate 322 or the second limiting plate 325 to achieve a stepped snap-fit ​​component 310. The push and guide action of the guide inclined section 314 reduces mutual collisions during the snap-fit ​​process, thereby improving the convenience and stability of assembly.

[0049] Specifically, in some implementations, such as Figure 5 and 6 As shown, the assembly straight section 313 has a second locking side 315 on the side surface away from the main housing 100; the second locking side 315 has a first assembly hole; the support limiting frame 320 (middle support bracket 321) has a second assembly hole; one side surface of the second limiting plate 325 has a first locking side 3251; the first locking side 3251 has a third assembly hole; outside the channel 326, the assembly straight section 313 passes through the first and third assembly holes with a third screw and is detachably connected to the second limiting plate 325; inside the channel 326, the assembly straight section 313 passes through the first and second assembly holes with a fourth screw and is detachably connected to the support limiting frame 320 (middle support bracket 321). This structure uses a third and fourth screw assembly method to further improve assembly stability; this method also ensures ease of disassembly and separation.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the non-electrical components of the storage structure as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art. Moreover, the electrical components in the storage structure can be selected and designed according to actual needs, and are not limited here. This part is not the original innovative intention of this technical solution.

[0051] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on this utility model are within the protection scope of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A storage structure for a photovoltaic energy storage integrated machine, characterized in that: The device includes a main housing, a cover plate, and a snap-fit ​​support assembly. The main housing has an internal cavity. The cover plate is positioned at the opening of the internal cavity. The snap-fit ​​support assembly includes a support limiting frame and at least one snap-fit ​​component. The support limiting frame has a channel. One end of the snap-fit ​​component is connected to the outer surface of the main housing. The other end of the snap-fit ​​component extends into the channel and is snapped into the inner end of the support limiting frame. The outer wall of the main housing abuts against the support limiting frame.

2. The storage structure of the photovoltaic energy storage integrated machine according to claim 1, characterized in that: The support limiting frame has a first limiting plate on its inner surface facing the channel; one end of the first limiting plate extends into the channel; and the outer surface of the first limiting plate is engaged between the fastening and engaging component and the main housing.

3. The storage structure of the photovoltaic energy storage integrated machine according to claim 2, characterized in that: The outer surface of the support limiting frame away from the channel is provided with a second limiting plate; the outer surface of the second limiting plate is engaged between the fastening and engaging component and the main housing.

4. The storage structure of the photovoltaic energy storage integrated machine according to claim 3, characterized in that: The support limiting frame includes a support bracket, a second connecting folding plate, and a first connecting folding plate; the number of support brackets is at least two, and they are arranged side by side in sequence; the second connecting folding plate and the first connecting folding plate are respectively connected between two adjacent support brackets; and the channel is formed between the support bracket, the second connecting folding plate, and the first connecting folding plate. The second limiting plate is connected to the outer surface of the first connecting plate away from the channel; the first limiting plate is connected to the inner surface of the second connecting plate facing the channel.

5. The storage structure of the photovoltaic energy storage integrated machine according to claim 3 or 4, characterized in that: The fastening and snapping component includes an outer connecting straight section, a connecting curved section, an assembly straight section, and a guide inclined section connected in sequence; and the outer connecting straight section is connected to the outer surface of the main housing; one side surface of the assembly straight section is snapped onto the first limiting plate or the second limiting plate.

6. The storage structure of the photovoltaic energy storage integrated machine according to claim 5, characterized in that: The assembly straight section has a second locking side on the side surface away from the main housing; the second locking side is detachably connected to the support limiting frame or the second limiting plate.

7. The storage structure of the photovoltaic energy storage integrated machine according to claim 1, characterized in that: The main housing is equipped with at least two locking and limiting components inside; A locking and limiting cavity is provided between the two locking and limiting components that are arranged opposite each other in the same horizontal direction; And / or the locking and limiting component has a locking groove on one end facing the inner wall of the main housing; and the main housing also has a slot inside; the slot and the locking groove are set on the same horizontal plane.

8. The storage structure of the photovoltaic energy storage integrated machine according to claim 7, characterized in that: The locking and limiting component includes a longitudinal abutment portion, a horizontal support portion, and an assembly side portion; the assembly side portion is detachably connected to the interior of the main housing; one side end of the longitudinal abutment portion is connected to the assembly side portion; there are two horizontal support portions, which are respectively connected to the two sides of the longitudinal abutment portion; and the locking groove is formed between the longitudinal abutment portion, the horizontal support portion, and the assembly side portion.

9. The storage structure of the photovoltaic energy storage integrated machine according to claim 7 or 8, characterized in that: The main housing is also provided with an abutting protrusion inside; the abutting protrusion is arranged to protrude towards the interior of the placement cavity.

10. The storage structure of the photovoltaic energy storage integrated machine according to claim 9, characterized in that: The abutting protrusion is provided with a positioning shaft; one end of the positioning shaft extends toward the interior of the placement cavity; and the positioning shaft is positioned above the locking and limiting component. Furthermore, a storage groove is provided on the side surface of the protrusion away from the placement cavity; the other end of the positioning shaft is inserted into the storage groove; and a rotating handle is movably provided on the other end of the positioning shaft.

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