Deck stacking operation method

By setting up lower scaffolding and upper scaffolding on the deck, setting up hanging ladders and reinforcement poles, the problem of size limitations in deck stacking operations is solved, multi-layer stacking is achieved, and the workpiece turnover rate and site utilization efficiency are improved.

CN120382976APending Publication Date: 2025-07-29GUANGZHOU SHIPYARD INTERNATIONAL LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510687784.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-27
Publication Date
2025-07-29

AI Technical Summary

Technical Problem

In the prior art, deck stacking operations are limited by the size of the upper ladder, making it difficult to stack more than three layers, resulting in a tight number of production sites and workpieces.

Method used

Layer scaffolding is set up on one side of the three-layer deck, upper scaffolding is set up on one side of the four-layer deck, and a hanging ladder is set up. Climbing to different layers through the hanging ladder is done for operation, combining reinforcement poles and protective mesh panels to improve structural strength and safety.

Benefits of technology

Multi-layer deck stacking has been achieved, the workpiece turnover rate has been improved, the site occupation has been reduced, and the tension at the production site has been alleviated.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120382976A_ABST
    Figure CN120382976A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of ship construction, and particularly discloses a deck stacking operation method, which comprises the following steps of: erecting a lower scaffold on one side of a three-layer deck, erecting an upper scaffold positioned above the lower scaffold on one side of a four-layer deck, and arranging two hanging ladders; therefore, an operator can climb to the third-layer deck or the fourth-layer deck from the second-layer deck through the hanging ladder for operation, the size limitation of the upper ladder and the lower ladder is avoided, compared with the prior art, the number of stacked layers of the decks is larger, the tool turnover rate is increased, occupied sites are reduced, and the problem that the production site and the number of tools are limited is further relieved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of shipbuilding, and particularly to a method for stacking deck operations. Background Art

[0002] The PCTC ship has a relatively large number of flat deck segments. Therefore, during the shipyard construction process, in order to improve the turnover efficiency of the corresponding transport gantry and tooling and reduce the site occupation, the flat deck segments with regular sizes are usually stacked and then transported. In the prior art, the stacking operation usually uses a boarding ladder to enable personnel to go up and down decks of different heights. Due to the size limitation of the boarding ladder, at most only the stacking operation of two or three decks can be achieved. However, when multiple ship types start construction continuously, the method of stacking two or three decks still cannot completely solve the problem of the shortage of site and tooling quantity in the production site. Summary of the Invention

[0003] The purpose of the present invention is to provide a method for stacking deck operations to further improve the turnover efficiency of tooling and reduce the occupation of the site.

[0004] The present invention provides a method for stacking deck operations, including the following steps:

[0005] S1. Place a layer of deck on the legs, and place a cushion block above the layer of deck;

[0006] S2. Place a second-layer deck on the cushion block of the layer of deck, and place a cushion block above the second-layer deck;

[0007] S3. Place a third-layer deck on the cushion block of the second-layer deck, and place a cushion block above the third-layer deck; Set up a lower scaffolding on one side of the third-layer deck, and place the lower hanging ladder on the second-layer deck and lean it against the lower scaffolding;

[0008] S4. Place a fourth-layer deck on the cushion block of the third-layer deck, set up an upper scaffolding on one side of the fourth-layer deck, the upper scaffolding is located above the lower scaffolding, hang the upper hanging ladder on the upper scaffolding, tie the two hanging ladders to the upper scaffolding and the lower scaffolding respectively, and tie the overlapping parts of the two hanging ladders.

[0009] As a preferred technical solution of the deck stacking operation method, the lower scaffolding includes lower connectors and two lower horizontal support members. Both of the two lower horizontal support members are fixedly connected to the three-layer deck and extend along a first direction. The two lower horizontal support members are spaced apart along a second direction. The two ends of the lower connector are respectively fixedly connected to the ends of the two lower horizontal support members. The first direction and the second direction are perpendicular. The hanging ladder of the lower layer is located in the space surrounded by the lower connector, the two lower horizontal support members and the three-layer deck, and is erected on one of the lower horizontal support members.

[0010] As a preferred technical solution of the deck stacking operation method, the upper scaffolding includes a vertical support member and an upper hanging member. The vertical support member is fixedly connected to the four-layer deck and extends vertically upward perpendicular to the four-layer deck. One end of the upper hanging member is fixedly connected to the vertical support member, and the other end extends along the first direction. The hanging ladder of the upper layer is hung on the upper hanging member.

[0011] As a preferred technical solution of the deck stacking operation method, the upper scaffolding further includes upper connectors and two upper horizontal support members. Both of the two upper horizontal support members are fixedly connected to the four-layer deck and extend along the first direction. The two upper horizontal support members are spaced apart along the second direction. The two ends of the upper connector are respectively fixedly connected to the ends of the two upper horizontal support members. The hanging ladder of the upper layer is located in the space surrounded by the upper connector, the two upper horizontal support members and the four-layer deck, and is erected on one of the upper horizontal support members.

[0012] As a preferred technical solution of the deck stacking operation method, the following steps are further included:

[0013] S5. Fix the reinforcement rod to the upper scaffolding and the lower scaffolding.

[0014] As a preferred technical solution of the deck stacking operation method, along the vertically upward direction, the reinforcement rod is successively fixedly connected to the lower horizontal support member, the upper horizontal support member and the upper hanging member.

[0015] As a preferred technical solution of the deck stacking operation method, the upper end of the reinforcement rod is higher than the upper hanging member, and the lower end of the reinforcement rod is lower than the lower horizontal support member.

[0016] As a preferred technical solution of the deck stacking operation method, the following steps are further included:

[0017] S6. Fix the protective net panel to the upper scaffolding and the lower scaffolding.

[0018] As a preferred technical solution of the deck stacking operation method, along the vertically upward direction, the protective net plate is fixedly connected to the lower connecting piece and the upper connecting piece in sequence.

[0019] As a preferred technical solution of the deck stacking operation method,

[0020] After placing the first layer of deck, install guardrails around the first layer of deck;

[0021] After placing the second layer of deck, install guardrails around the second layer of deck;

[0022] After placing the third layer of deck, install guardrails around the third layer of deck;

[0023] After placing the fourth layer of deck, install guardrails around the fourth layer of deck.

[0024] The beneficial effects of the present invention are as follows:

[0025] The present invention provides a deck stacking operation method. By erecting a lower scaffold on one side of the third layer of deck, an upper scaffold located above the lower scaffold on one side of the fourth layer of deck, and arranging two hanging ladders, operators can climb from the second layer of deck to the third layer or the fourth layer of deck through the hanging ladders for operation, getting rid of the size limitation of the up and down ladders. Compared with the prior art, the number of stacked decks is more, the turnover rate of tooling is improved, and the occupation of the site is reduced, thus further alleviating the problem of the shortage of site and the number of tooling in the production site. Description of the Drawings

[0026] Figure 1 It is a schematic diagram after the scaffold for deck stacking operation in the embodiment of the present invention is erected;

[0027] Figure 2 It is a side view of the erection of the lower scaffold in the embodiment of the present invention;

[0028] Figure 3 It is a front view of the erection of the lower scaffold in the embodiment of the present invention;

[0029] Figure 4 It is a side view of the erection of the upper scaffold in the embodiment of the present invention;

[0030] Figure 5 It is a front view of the erection of the upper scaffold in the embodiment of the present invention;

[0031] Figure 6 It is a side view after the scaffold is erected in the embodiment of the present invention;

[0032] Figure 7 It is a front view after the scaffold is erected in the embodiment of the present invention;

[0033] Figure 8 is Figure 7 the schematic diagram of the scaffolding in [the relevant context] along the A-A direction;

[0034] Figure 9 is Figure 8 the schematic diagram of the scaffolding in [the relevant context] along the B-B direction;

[0035] Figure 10 is Figure 8 the schematic diagram of the scaffolding in [the relevant context] along the C-C direction.

[0036] In the figure:

[0037] 100, the first-layer deck; 200, the second-layer deck; 300, the third-layer deck; 400, the fourth-layer deck;

[0038] 10, the support leg; 20, the cushion block; 30, the access ladder;

[0039] 1, the 90° clip; 2, the protective member; 3, the 180° clip; 4, the round tube; 5, the fastener; 6, the hanging ladder; 7, the reinforcing rod; 8, the protective mesh panel. Specific implementation manners

[0040] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention 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 to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, 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 invention can be understood according to specific situations.

[0043] The embodiments of the present invention 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 by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0044] As Figures 1 - 10 shown, the present invention provides a method for stacking decks, including the following steps:

[0045] S1. Place a layer of deck 100 on the support leg 10, and place a cushion block 20 above the layer of deck 100;

[0046] S2. Place the second-layer deck 2 on the cushion block 20 of the first-layer deck 100, and place a cushion block 20 above the second-layer deck 2;

[0047] S3. Place the third-layer deck 3 on the cushion block 20 of the second-layer deck 2, and place a cushion block 20 above the third-layer deck 3; Build a lower scaffolding on one side of the third-layer deck 3, and place the lower hanging ladder 6 on the second-layer deck 2 and lean it against the lower scaffolding;

[0048] S4. Place the fourth-layer deck 4 on the cushion block 20 of the third-layer deck 3. Build an upper scaffolding on one side of the fourth-layer deck 4. The upper scaffolding is located above the lower scaffolding. Hang the upper hanging ladder 6 on the upper scaffolding, tie the two hanging ladders 6 to the upper scaffolding and the lower scaffolding respectively, and tie the overlapping parts of the two hanging ladders 6.

[0049] S5. Fix and connect the reinforcement rod 7 to the upper scaffolding and the lower scaffolding;

[0050] S6. Fix and connect the protective net plate 8 to the upper scaffolding and the lower scaffolding.

[0051] By erecting a lower scaffolding on one side of the third deck 3, an upper scaffolding above the lower scaffolding on one side of the fourth deck 4, and arranging two hanging ladders 6, the operators can climb from the second deck 2 to the third deck 3 or the fourth deck 4 through the hanging ladders 6 to carry out operations, getting rid of the size limitation of the up-and-down ladder 30. Compared with the prior art, more decks can be stacked, the turnover rate of tooling is improved, and the occupation of the site is reduced, thus further alleviating the problem of the shortage of site and the number of tooling in the production site.

[0052] Further, as Figures 1 - 3 shown, the lower scaffolding includes lower connectors and two lower horizontal supports. Both of the two lower horizontal supports are fixedly connected to the third deck 3 and extend along the first direction. The two lower horizontal supports are arranged at intervals along the second direction. The two ends of the lower connector are respectively fixedly connected to the ends of the two lower horizontal supports far away from the third deck 3. The first direction and the second direction are perpendicular, and the first direction is the Figure 1 and Figure 3 X direction shown in Figure 2 , and the second direction is the

[0053] Y direction shown in

[0054] The lower hanging ladder 6 is located in the space enclosed by the lower connector, the two lower horizontal supports and the third deck 3 and is erected on one of the lower horizontal supports. The lower connector, the two lower horizontal supports and the third deck 3 jointly enclose a rectangular frame structure to enhance the structural strength of the lower scaffolding, ensure the supporting effect on the hanging ladder 6, and also be able to protect the climbing operators, and at the same time facilitate the connection of safety ropes. Figures 4 - 10As shown, the upper scaffolding is installed on one side of the fourth deck 4 and directly above the lower scaffolding. The upper scaffolding includes vertical supports and upper hanging members. The vertical supports are fixedly connected to the fourth deck 4 and extend vertically upward perpendicular to the fourth deck 4. One end of the upper hanging member is fixedly connected to the vertical support, and the other end extends in the first direction. The upper hanging ladder 6 is hung on the upper hanging member. That is, the height of the upper hanging member is higher than the height of the fourth deck 4, and the operator can climb to a height higher than the fourth deck 4 through the upper hanging ladder 6, so that it is more convenient to board the fourth deck 4. In addition, the upper scaffolding further includes upper connecting members and two upper horizontal supports. Both of the two upper horizontal supports are fixedly connected to the fourth deck 4 and extend in the first direction. The two upper horizontal supports are spaced apart in the second direction, and both ends of the upper connecting member are fixedly connected to the ends of the two upper horizontal supports. Similarly, the first direction is Figure 5 , Figure 7 and Figure 8 the X direction shown in Figure 4 , Figure 6 , Figures 8 - 10 the Y direction shown in

[0055] In this embodiment, both the upper horizontal support and the lower horizontal support are selected as 180° clip codes 3. The structure and installation method of the 180° clip code 3 are prior art in the field and will not be elaborated here. The vertical support is selected as a 90° clip code 1. Similarly, the structure and installation method of the 90° clip code 1 are prior art in the field and will not be elaborated here. The upper hanging member, the upper connecting member, and the lower connecting member are all selected as round tubes 4, and their sizes and specifications are the same to improve interchangeability and reduce the types and quantities of spare parts on site. The round tube 4 is fixedly connected to the 180° clip code 3 and the round tube 4 is fixedly connected to the 90° clip code 1 through fasteners 5. The specifications of the fasteners 5 can be selected according to actual needs and will not be specifically limited here.

[0056] Furthermore, please refer to Figure 1 , Figure 7 , Figure 8 and Figure 9As shown, after the installation of the lower scaffolding and the upper scaffolding is completed, the reinforcing rod 7 is fixedly connected to the upper scaffolding and the lower scaffolding, connecting the upper scaffolding and the lower scaffolding, further improving the structural strength of the upper scaffolding and the lower scaffolding in the vertical direction. The reinforcing rod 7 is a circular tubular or rod-shaped structure. Specifically, in the vertically upward direction, the reinforcing rod 7 is sequentially fixedly connected to the lower horizontal support member, the upper horizontal support member, and the upper hanging member, preferably fixedly connected by the fastener 5. Thus, support is provided to the upper scaffolding and the lower scaffolding in the vertical direction, and it is also convenient for the operators to grip when climbing the hanging ladder 6. In addition, the upper end of the reinforcing rod 7 is set higher than the upper hanging member, and the lower end of the reinforcing rod 7 is set lower than the lower horizontal support member, enabling the operators to grip the reinforcing rod 7 throughout the climbing process, which is beneficial for climbing.

[0057] Furthermore, as Figure 6 , Figure 8 and Figure 9 shown, after the installation of the reinforcing rod 7, the protective net plate 8 is fixedly connected to the upper scaffolding and the lower scaffolding. The protective net plate 8 can be selected as a pedal for walking, so as to reduce the types of on-site spare parts. By setting the protective net plate 8, further protection is provided to the climbing operators to prevent them from directly falling to the ground from the hanging ladder 6 during the climbing process. In the vertically upward direction, the protective net plate 8 is sequentially fixedly connected to the lower horizontal support member and the upper horizontal support member, preferably fixedly connected by binding with iron wire or steel wire. At the same time, the width direction of the protective net plate 8 is consistent with the extending direction of the upper connecting member and the lower connecting member, that is, the protective net plate 8 is located on one side of the hanging ladder 6, so that one side of the hanging ladder 6 is protected by the protective net plate 8, and the other side is the third deck 3 and the fourth deck 4, to prevent people from directly falling to the ground from the hanging ladder 6.

[0058] In addition, during the process of stacking the decks, the following steps are also included:

[0059] After placing the first deck 100, set up guardrails around the first deck 100;

[0060] After placing the second deck 2, set up guardrails around the second deck 2;

[0061] After placing the third deck 3, set up guardrails around the third deck 3;

[0062] After placing the fourth deck 4, set up guardrails around the fourth deck 4.

[0063] The guardrail in this embodiment is composed of a 90° clamp 1 and a protective member 2. The 90° clamps 1 are arranged at intervals along the circumference of the corresponding deck, and the protective members 2 are arranged continuously along the circumference of the corresponding deck and are installed on the 90° clamps 1. The protective member 2 in this embodiment can be selected as a chain or a steel pipe. Specifically, the protective member 2 corresponding to the first-layer deck 100 is selected as a chain to reduce the operation difficulty, and the protective members 2 of the remaining decks are selected as steel pipes to obtain a better protection effect.

[0064] When stacking the decks using the deck stacking operation method of this embodiment, place the legs 10 in place, lift the first-layer deck 100, and the operator climbs onto the first-layer deck 100 through the access ladder 30 to install the guardrail and place the cushion block 20 on the first-layer deck 100, and then leave the first-layer deck 100. Lift the second-layer deck 2, climb onto the second-layer deck 2 through the access ladder 30 to install the guardrail and place the cushion block 20 on the second-layer deck 2, and then leave the second-layer deck 2. Lift the third-layer deck 3, climb onto the second-layer deck 2 through the access ladder 30, install two 180° clamps 3 at intervals along the second direction on the third-layer deck 3, connect the two 180° clamps 3 through a round pipe 4, place the lower hanging ladder 6 on the second-layer deck 2 and lean it against one of the 180° clamps 3, climb onto the third-layer deck 3 through the hanging ladder 6 to install the guardrail and place the cushion block 20 on the third-layer deck 3, and then leave the third-layer deck 3. Here, it should be noted that the sizes of the port side deck and starboard side deck of a PCTC ship are usually inconsistent. When stacking, stack two port side decks and two starboard side decks, so that the area of the second-layer deck 2 is larger than that of the third-layer deck 3 to form a platform for the operator to stand on to install the lower scaffolding of the third-layer deck 3 and arrange the lower hanging ladder 6. For the case where the sizes of the port side deck and starboard side deck are the same, it is also possible to install the lower scaffolding of the third-layer deck 3 on the access ladder 30 and arrange the lower hanging ladder 6 by hanging. Then lift the fourth-layer deck 4, and the operator climbs to an appropriate height through the lower hanging ladder 6, installs two 180° clamps 3 at intervals along the second direction on the fourth-layer deck 4, connects the two 180° clamps 3 through a round pipe 4, pre-install the upper hanging member on the 90° clamp 1, then install the 90° clamp 1 on the fourth-layer deck 4, hang the upper hanging ladder 6 on the upper hanging member, tie the upper hanging ladder 6 to the upper hanging member and the 180° clamp 3 of the fourth-layer deck 4, and at the same time tie the lower hanging ladder 6 to the 180° clamp 3 of the third-layer deck 3, and finally tie the overlapping part of the upper hanging ladder 6 and the lower hanging ladder 6. Then the operator installs the reinforcing rod 7 and the protective net plate 8 on the hanging ladder 6 and climbs onto the fourth-layer deck 4 to install the guardrail. Or, in other embodiments, the upper scaffolding of the fourth-layer deck 4 can also be pre-installed. After lifting the fourth-layer deck 4, the upper hanging ladder 6 can be directly hung and tied to reduce the high-altitude operation.

[0065] After actual measurement, after using the deck stacking operation method in this embodiment, the number of transportation times after stacking is reduced by 32 times for a single ship, 8 stacking positions are saved for a single ship, and the number of widened gantry used is saved by 24.

[0066] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Method for deck stacking operation, characterized in that, It includes the following steps: S1. Place a layer of deck (100) on the outrigger (10), and place a cushion block (20) above the layer of deck (100); S2. Place a second-layer deck (200) on the cushion block (20) of the layer of deck (100), and place a cushion block (20) above the second-layer deck (200); S3. Place a third-layer deck (300) on the cushion block (20) of the second-layer deck (200), and place a cushion block (20) above the third-layer deck (300); Set up a lower scaffold on one side of the third-layer deck (300), and place the lower hanging ladder (6) on the second-layer deck (200) and lean it against the lower scaffold; S4. Place a fourth-layer deck (400) on the cushion block (20) of the third-layer deck (300), and set up an upper scaffold on one side of the fourth-layer deck (400). The upper scaffold is located above the lower scaffold. Hang the upper hanging ladder (6) on the upper scaffold, tie the two hanging ladders (6) to the upper scaffold and the lower scaffold respectively, and tie the overlapping parts of the two hanging ladders (6).

2. The deck stacking operation method according to claim 1, wherein, The lower scaffold includes a lower connecting piece and two lower horizontal support pieces. Both of the two lower horizontal support pieces are fixedly connected to the third-layer deck (300) and extend along a first direction. The two lower horizontal support pieces are spaced apart along a second direction. The two ends of the lower connecting piece are respectively fixedly connected to the ends of the two lower horizontal support pieces. The first direction and the second direction are perpendicular. The lower hanging ladder (6) is located in the space surrounded by the lower connecting piece, the two lower horizontal support pieces and the third-layer deck (300), and is placed on one of the lower horizontal support pieces.

3. The deck stacking operation method according to claim 2, wherein The upper scaffold includes a vertical support piece and an upper hanging piece. The vertical support piece is fixedly connected to the fourth-layer deck (400) and extends vertically upward perpendicular to the fourth-layer deck (400). One end of the upper hanging piece is fixedly connected to the vertical support piece, and the other end extends along the first direction. The upper hanging ladder (6) is hung on the upper hanging piece.

4. The deck stacking operation method according to claim 3, wherein The upper scaffold further includes an upper connecting piece and two upper horizontal support pieces. Both of the two upper horizontal support pieces are fixedly connected to the fourth-layer deck (400) and extend along the first direction. The two upper horizontal support pieces are spaced apart along the second direction. The two ends of the upper connecting piece are respectively fixedly connected to the ends of the two upper horizontal support pieces. The upper hanging ladder (6) is located in the space surrounded by the upper connecting piece, the two upper horizontal support pieces and the fourth-layer deck (400), and is placed on one of the upper horizontal support pieces.

5. The deck stacking operation method according to claim 4, wherein It also includes the following steps: S5. Fix the reinforcement rod (7) to the upper scaffold and the lower scaffold.

6. The deck stacking operation method according to claim 5, wherein Along the vertically upward direction, the reinforcement rod (7) is sequentially fixedly connected to the lower horizontal support piece, the upper horizontal support piece and the upper hanging piece.

7. The deck stacking operation method according to claim 6, wherein The upper end of the reinforcement rod (7) is higher than the upper hanging piece, and the lower end of the reinforcement rod (7) is lower than the lower horizontal support piece.

8. The deck stacking operation method according to claim 5, characterized in that It also includes the following steps: S6. Fix the protective net plate (8) to the upper scaffolding and the lower scaffolding.

9. The deck stacking operation method according to claim 8, characterized in that In the vertically upward direction, the protective net plate (8) is fixedly connected to the lower connecting piece and the upper connecting piece in sequence.

10. The deck stacking operation method according to any one of claims 1-9, characterized in that After placing the first layer of deck (100), set guardrails around the first layer of deck (100); After placing the second layer of deck (200), set guardrails around the second layer of deck (200); after placing the third layer of deck (300), set guardrails around the third layer of deck (300); After placing the fourth layer of deck (400), set guardrails around the fourth layer of deck (400).