Narrow semi-closed building modeling supporting formwork and dismantling method

Abstract

The invention discloses a narrow semi-closed building modeling supporting formwork and a dismantling method, and relates to the field of building construction. The narrow semi-closed building modeling supporting formwork comprises an inner side upper formwork, an inner side lower formwork, a top formwork, a bottom formwork, two end formworks and an outer side upper formwork, wherein the top of the inner side lower formwork is hinged to the bottom of the inner side upper formwork, one side of the top formwork is hinged to the top of the inner side upper formwork, and one side of the bottom formwork is hinged to the bottom of the inner side lower formwork. One end of each supporting rod is connected with the hinged position of the corresponding inner side upper formwork and the corresponding inner side lower formwork. According to the narrow and semi-closed building modeling supporting formwork and the dismantling method, constructors can conveniently fold the formwork and separate the formwork from a narrow and semi-closed space through the stretching supporting rods, the formwork can be conveniently recycled to improve the economic effect, and the situation that the formwork is supported through opposite-pulling screws is avoided.

Description

Technical Field

[0001] The present application relates to the field of building construction, and more particularly, to a support formwork for a narrow semi-enclosed building shape and a demolition method thereof. Background Art

[0002] With the continuous development of China's urbanization process, the types of urban building shapes are diversified, and some building shapes form narrow semi-enclosed space structures, such as bay window structures similar to narrow semi-enclosed spaces.

[0003] In the current formwork construction of narrow semi-enclosed building shapes, due to the too small openings, workers mostly use traditional wooden formwork to first form the formwork inside the narrow semi-enclosed space and fix it to the outer formwork through tie bolts. However, the drilling connection method of tie bolts affects the heat preservation effect inside the concrete structure, and later it is necessary to clean the tie bolt holes, increasing the secondary labor cost. At the same time, after the concrete construction of the narrow semi-enclosed building shape structure is completed, the space is too narrow for construction workers to enter and remove the internal formwork, which affects the building use effect, and the formwork materials cannot be reused, increasing the construction cost.

[0004] Therefore, there is a need for a support formwork for building shapes suitable for formwork removal in narrow semi-enclosed spaces and a demolition construction method to meet the use requirements. Summary of the Invention

[0005] The purpose of the present application is to provide a support formwork for a narrow semi-enclosed building shape and a demolition method thereof, which can facilitate construction workers to remove the formwork and separate it from the narrow semi-enclosed space, facilitate the recycling of the formwork to improve the economic effect, and avoid using tie rods to support the formwork.

[0006] The present application is implemented as follows:

[0007] The present application provides a support formwork for a narrow semi-enclosed building shape, which includes an inner upper formwork, an inner lower formwork hinged to the bottom of the inner upper formwork at the top, a top formwork hinged to the top of the inner upper formwork at one side, a bottom formwork hinged to the bottom of the inner lower formwork at one side, two end formworks, an outer upper formwork, an outer lower formwork and at least one support rod, and one end of the support rod is connected to the hinge joint of the inner upper formwork and the inner lower formwork.

[0008] In some alternative embodiments, at least one upper reserved pull rope is connected to the top formwork, at least one lower reserved pull rope is connected to the bottom formwork, at least two limiting rings are provided on the support rod, and the upper reserved pull rope and the lower reserved pull rope respectively pass through at least one limiting ring.

[0009] In some alternative embodiments, at least one top rod is hinged to the top formwork, and the bottom of the top rod is detachably connected to the support rod.

[0010] In some optional embodiments, the top of at least one end template is hinged to one end of the top template.

[0011] In some optional embodiments, the bottom of at least one end template is hinged to one end of the bottom template.

[0012] In some optional embodiments, the two end templates are hinged to one end of the top template and the bottom template respectively.

[0013] In some optional embodiments, at least one end template includes an upper end sub-template hinged to one end of the top template and a lower end sub-template hinged to one end of the bottom template.

[0014] In some optional embodiments, the end upper sub-template and the end lower sub-template are respectively provided with at least one buckle, and the top template and the bottom template are respectively provided with a clamping seat, and when the end upper sub-template and the end lower sub-template are respectively rotated to fit the top template and the bottom template, the buckle is detachably connected to the corresponding clamping seat.

[0015] The present application also provides a method for dismantling the above-mentioned narrow semi-enclosed building modeling support formwork, which comprises the following steps:

[0016] Remove the two outer upper formworks and outer lower formworks that are attached to the upper and lower outer walls of the narrow semi-enclosed space;

[0017] Remove the two end formworks that are attached to the end walls of the narrow semi-enclosed space;

[0018] Pull the support rod outward from the narrow semi-enclosed space, so that the support rod drives the hinge of the inner upper template and the inner lower template to move outward, and the inner upper template and the inner lower template are folded to form a V shape and then move outward, and the top template and the bottom template are driven by the inner upper template and the inner lower template to fold into an M-shaped structure to detach from the inner wall of the narrow semi-enclosed space;

[0019] Continue to pull the support rod outward to drive the folded inner upper template, inner lower template, top template and bottom template to leave the narrow semi-enclosed space.

[0020] In some optional embodiments, when the support rod is pulled outward to cause the inner upper template and the inner lower template to fold into a V shape and then move outward, the upper reserved pull rope connected to the top template and the lower reserved pull rope connected to the bottom template are pulled synchronously, so that the upper reserved pull rope and the lower reserved pull rope pass through the limiting ring on the support rod and move outward to drive the top template and the bottom template to fold into an M-shaped structure and detach from the inner wall of the narrow semi-enclosed space, and further pull the support rod, the upper reserved pull rope and the lower reserved pull rope outward to cause the folded inner upper template, the inner lower template, the top template and the bottom template to detach from the narrow semi-enclosed space.

[0021] The beneficial effects of the present application are as follows: the narrow semi-enclosed building modeling support formwork provided by the present application comprises an inner upper formwork, an inner lower formwork hinged at the top and the bottom of the inner upper formwork, a top formwork hinged at one side to the top of the inner upper formwork, a bottom formwork hinged at one side to the bottom of the inner lower formwork, two end formworks, an outer upper formwork, an outer lower formwork and at least one support rod, one end of the support rod being connected to the hinge of the inner upper formwork and the inner lower formwork. The narrow semi-enclosed building modeling support formwork and the dismantling method provided by the present application can drive the inner upper formwork and the inner lower formwork to fold into a V shape and then move outward by stretching the support rod, and drive the top formwork and the bottom formwork to fold into an M-shaped structure to leave the narrow semi-enclosed space through the inner upper formwork and the inner lower formwork, so as to facilitate the recycling of the formwork to improve the economic effect, and avoid the use of tension screws to support the formwork. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of a structure in which a narrow semi-enclosed architectural modeling support template provided in an embodiment of the present application is supported in a semi-enclosed narrow space;

[0024] Figure 2 A schematic diagram of the structure of a narrow semi-enclosed building modeling support template provided in an embodiment of the present application when it is supported in a semi-enclosed narrow space and then removed;

[0025] Figure 3 A schematic diagram of a structure in which a narrow semi-enclosed architectural modeling support template is supported in a semi-enclosed narrow space provided in another embodiment of the present application;

[0026] Figure 4 A schematic diagram of the structure of a narrow semi-enclosed architectural modeling support template supported in a semi-enclosed narrow space provided in another embodiment of the present application.

[0027] In the figure: 100, inner upper template; 110, inner lower template; 120, top template; 130, bottom template; 140, end template; 141, upper end sub-template; 142, lower end sub-template; 143, buckle; 144, card slot; 150, outer upper template; 160, outer lower template; 170, support rod; 180, upper reserved pull rope; 190, lower reserved pull rope; 200, limit ring; 210, ejector rod; 220, card seat; 230, outer wall template; 300, narrow space; 310, semi-closed concrete structure; 320, opening; 330, thermal insulation material layer. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. The components of the embodiments of the present application usually described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0030] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] In the description of the present application, 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 drawings, or the orientation or positional relationship in which the product of this application is usually placed when in use. It is only for the convenience of describing the present application 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 cannot be understood as a limitation to the present application. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0032] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0033] In the description of the present application, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0034] In the present application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0035] The features and performance of the support formwork and removal method for the narrow semi - enclosed building shape in the present application will be further described in detail below in conjunction with embodiments.

[0036] Such as Figure 1 and Figure 2As shown in the figure, an embodiment of the present application provides a formwork for supporting a narrow semi - enclosed building shape, which is used for formwork pouring operations on a semi - enclosed concrete structure 310 that encloses a narrow space 300. An opening 320 communicating with the narrow space 300 is provided on one side of the semi - enclosed concrete structure 310, and heat - insulating material layers 330 are provided above and below the opening 320 inside the semi - enclosed concrete structure 310; the narrow semi - enclosed building - shape formwork includes an inner upper template 100 attached to the upper part of the inner wall of the narrow space 300, an inner lower template 110 attached to the lower part of the inner wall of the narrow space 300, a top template 120 attached to the top wall of the narrow space 300, a bottom template 130 attached to the bottom wall of the narrow space 300, two end templates 140 respectively attached to the inner walls at both ends of the narrow space 300, an outer upper template 150 attached to the inner wall above the opening 320 of the narrow space 300, an outer lower template 160 attached to the inner wall below the opening 320 of the narrow space 300, and a support rod 170. The top of the inner lower template 110 is hinged to the bottom of the inner upper template 100, one side of the top template 120 is hinged to the top of the inner upper template 100, one side of the bottom template 130 is hinged to the bottom of the inner lower template 110. One end of the support rod 170 is connected to the hinge joint of the inner upper template 100 and the inner lower template 110, and the other end extends out of the opening 320 of the narrow space 300; a top reserved pull - rope 180 is connected to the bottom surface of the end of the top template 120 away from the inner upper template 100, and a bottom reserved pull - rope 190 is connected to the top surface of the end of the bottom template 130 away from the inner lower template 110. The support rod 170 is provided with two limiting rings 200. The top reserved pull - rope 180 and the bottom reserved pull - rope 190 respectively pass through a limiting ring 200 and then extend out of the opening 320 of the narrow space 300. A top rod 210 is hinged to the bottom surface of the top template 120, and the bottom of the top rod 210 is detachably connected to the support rod 170 by bolts.

[0037] When the formwork pouring of the narrow semi - enclosed building shape support formwork provided by the embodiment of the present application encloses to form a semi - enclosed concrete structure 310 in a narrow space 300, first, the internal steel bars of the semi - enclosed concrete structure 310 are constructed, and then the narrow semi - enclosed building shape support formwork is constructed. First, the folded inner upper formwork 100, inner lower formwork 110, top formwork 120, and bottom formwork 130 are pushed into the narrow space 300 through the opening 320 using the support rod 170, so that the bottom formwork 130 fits against the bottom wall of the narrow space 300. Subsequently, the support rod 170 and the top rod 210 are pushed to unfold the inner upper formwork 100 and the inner lower formwork 110 to fit against the upper and lower inner walls of the narrow space 300 respectively, and the top formwork 120 is made to fit against the top wall of the narrow space 300. The bottom of the top rod 210 is bolt - connected to the support rod 170 to stably support the top formwork 120. Subsequently, the two end formworks 140 are respectively moved into the two ends of the narrow space 300 through the opening 320 for installation. Then, the outer upper formwork 150 and the outer lower formwork 160 are respectively installed above and below the opening 320. The steel bars at the top inside the semi - enclosed concrete structure 310 are constructed, and then the outer wall formwork 230 of the outer wall of the semi - enclosed concrete structure 310 is constructed, and then the concrete pouring construction can be carried out to obtain the semi - enclosed concrete structure 310.

[0038] The narrow semi - enclosed building shape support formwork provided by the embodiment of the present application hinges the inner upper formwork 100, inner lower formwork 110, top formwork 120, and bottom formwork 130 together for easy folding and then feeding them into the narrow space 300 through the opening 320. One end of the support rod 170 is connected to the hinge joint of the inner upper formwork 100 and the inner lower formwork 110. A top rod 210 is hinged to the bottom surface of the top formwork 120. It can facilitate the operator to push the support rod 170 and the top rod 210 to unfold the folded inner upper formwork 100, inner lower formwork 110, top formwork 120, and bottom formwork 130 to fit against the inner wall of the narrow space 300, and use the top rod 210 to press and support the inner upper formwork 100 and the inner lower formwork 110, and use the top rod 210 to press and support the top formwork 120, so as to form a formwork support system in the narrow semi - enclosed space to achieve the effect of one - time forming, reduce the construction process, protect the construction safety. At the same time, the process of drilling holes for traditional internal and external formwork tie bolts is eliminated, protecting the heat - preservation effect of the built - in heat - preservation of the semi - enclosed concrete structure 310. Also, when workers cannot enter the narrow semi - enclosed space 300, the formwork can be remotely and quickly installed and folded and removed outside the opening 320, which is convenient for recycling and reusing after the formwork is removed, avoiding material waste and saving costs.

[0039] In other alternative embodiments, the top of one or both end templates 140 can also be hinged to one end of the top template 120, and the end templates 140 can be rotated to fit the top template 120, folded and passed through the opening 320 to move to the narrow space 300, and then rotated in the opposite direction to fit the inner wall of the end of the narrow space 300.

[0040] In other alternative embodiments, the bottom of one or both end templates 140 can also be hinged to one end of the bottom template 130, and the end templates 140 can be rotated to fit the bottom template 130, folded and passed through the opening 320 to move to the narrow space 300, and then rotated in the opposite direction to fit the inner wall of the end of the narrow space 300.

[0041] In other alternative embodiments, the two end templates 140 can also be hinged to one end of the top template 120 and the bottom template 130 respectively, and the two end templates 140 can be rotated to fit the top template 120 and the bottom template 130 respectively, folded and passed through the opening 320 to move to the narrow space 300, and then rotated in the opposite direction to fit the inner wall of the end of the narrow space 300.

[0042] In other alternative embodiments, as Figure 3 shown, one or two end templates 140 can also include an upper end sub-template 141 hinged to one end of the top template 120 at the top and a lower end sub-template 142 hinged to one end of the bottom template 130 at the bottom, so that the upper end sub-template 141 and the lower end sub-template 142 can be rotated to fit the top template 120 and the bottom template 130 respectively, folded and passed through the opening 320 to move to the narrow space 300, and then rotated in the opposite direction to fit the inner wall of the end of the narrow space 300.

[0043] In other alternative embodiments, as Figure 4 shown, the upper end sub-template 141 and the lower end sub-template 142 are respectively provided with a buckle 143. The buckle 143 is provided with a threaded hole. The bottom surface of the top template 120 and the top surface of the bottom template 130 are respectively provided with a clamping seat 220. The clamping seat 220 is provided with a threaded hole. The upper end sub-template 141 and the lower end sub-template 142 are respectively provided with a clamping groove 144 for clamping the buckle 143 on the corresponding lower end sub-template 142 and upper end sub-template 141. When the upper end sub-template 141 and the lower end sub-template 142 are respectively rotated to fit the top template 120 and the bottom template 130, the threaded hole of the buckle 143 is aligned with the threaded hole of the corresponding clamping seat 220 and then connected by a bolt, which is convenient for fixing the positions of the upper end sub-template 141 and the lower end sub-template 142 so as to be unfolded and installed on the inner wall of the narrow space 300 after passing through the opening 320.

[0044] As Figure 1 and Figure 2As shown, the embodiment of the present application also provides a method for removing the supporting formwork of the above-mentioned narrow semi-enclosed building shape, which includes the following steps:

[0045] Step 1: Remove the outer wall formwork 230 on the outer side wall of the semi-enclosed concrete structure 310

[0046] Step 2: Remove the upper outer formwork 150 and the lower outer formwork 160 on the inner walls above and below the opening 320 of the narrow space 300;

[0047] Step 3: Remove the two end formworks 140 attached to the end walls at both ends of the narrow space 300;

[0048] Step 4: Separate the bottom of the jack rod 210 from the support rod 170, pull the support rod 170 outward from the opening 320, so that the support rod 170 drives the hinge joint of the inner upper formwork 100 and the inner lower formwork 110 to move outward, and at the same time drives the inner upper formwork 100 and the inner lower formwork 110 to rotate and fold towards each other to form a V shape, and makes the inner upper formwork 100 and the inner lower formwork 110 respectively drive the top formwork 120 to descend and the bottom formwork 130 to ascend and fold to form an M-shaped structure to disengage from the inner wall of the narrow space 300;

[0049] Step 5: While continuing to pull the support rod 170 outward, pull the upper reserved pull rope 180 connected to the top formwork 120 and the lower reserved pull rope 190 connected to the bottom formwork 130, so that the folded M-shaped inner upper formwork 100, inner lower formwork 110, top formwork 120 and bottom formwork 130 are lifted and separated from the semi-enclosed narrow space 300 through the opening 320.

[0050] In other alternative embodiments, the top of one or two end formworks 140 can also be hinged to one end of the top formwork 120. At this time, when removing the two end formworks 140 attached to the end walls at both ends of the narrow space 300 in Step 3, the end formwork 140 hinged to one end of the top formwork 120 can be rotated to fit the bottom surface of the top formwork 120 and fixed with steel bars, and then together with the inner upper formwork 100 and the inner lower formwork 110, respectively drive the top formwork 120 to descend and the bottom formwork 130 to ascend and fold to form an M-shaped structure to disengage from the inner wall of the narrow space 300.

[0051] In other alternative embodiments, the bottom of one or both end templates 140 can also be hinged to one end of the bottom template 130. At this time, when removing the two end templates 140 that are attached to the end walls at both ends of the narrow space 300 in step three, the end templates 140 hinged to one end of the bottom template 130 can be rotated to fit the top surface of the bottom template 130 and then fixed with steel bars. Subsequently, together with the inner upper template 100 and the inner lower template 110, the top template 120 is driven to descend and the bottom template 130 is driven to ascend to fold into an M-shaped structure and disengage from the inner wall of the narrow space 300.

[0052] In other alternative embodiments, the two end templates 140 can also be respectively hinged to one end of the top template 120 and the bottom template 130. At this time, when removing the two end templates 140 that are attached to the end walls at both ends of the narrow space 300 in step three, the two end templates 140 can be respectively rotated to fit the top template 120 and the bottom template 130 and then fixed with steel bars. Subsequently, together with the inner upper template 100 and the inner lower template 110, the top template 120 is driven to descend and the bottom template 130 is driven to ascend to fold into an M-shaped structure and disengage from the inner wall of the narrow space 300.

[0053] In other alternative embodiments, one or both end templates 140 can also include an upper end sub-template 141 whose top is hinged to one end of the top template 120 and a lower end sub-template 142 whose bottom is hinged to one end of the bottom template 130. At this time, when removing the two end templates 140 that are attached to the end walls at both ends of the narrow space 300 in step three, the upper end sub-template 141 and the lower end sub-template 142 are respectively rotated to fit the top template 120 and the bottom template 130 and then fixed with steel bars. Subsequently, together with the inner upper template 100 and the inner lower template 110, the top template 120 is driven to descend and the bottom template 130 is driven to ascend to fold into an M-shaped structure and disengage from the inner wall of the narrow space 300.

[0054] The embodiments described above are some, but not all, of the embodiments of the present application. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts fall within the scope of protection of the present application.

Claims

1. A support formwork for a narrow semi-closed building shape, characterized in that, It includes an inner upper template, an inner lower template with its top hinged to the bottom of the inner upper template, a top template with one side hinged to the top of the inner upper template, a bottom template with one side hinged to the bottom of the inner lower template, two end templates, an outer upper template, an outer lower template and at least one support rod, and one end of the support rod is connected to the hinge joint of the inner upper template and the inner lower template.

2. The narrow semi-closed building shape support formwork according to claim 1, characterized in that, At least one upper reserved pull rope is connected to the top template, at least one lower reserved pull rope is connected to the bottom template, at least two limiting rings are provided on the support rod, and the upper reserved pull rope and the lower reserved pull rope respectively pass through at least one of the limiting rings.

3. The narrow semi-closed building shape supporting formwork according to claim 1, characterized in that, At least one top rod is hinged to the top template, and the bottom of the top rod is detachably connected to the support rod.

4. The narrow semi-closed building modeling support formwork according to claim 1, characterized in that, The top of at least one of the end templates is hinged to one end of the top template.

5. The narrow semi-closed building shape support formwork according to claim 1, characterized in that, The bottom of at least one of the end templates is hinged to one end of the bottom template.

6. The formwork for supporting the narrow semi-closed building shape according to claim 1, wherein, The two end templates are respectively hinged to one end of the top template and the bottom template.

7. The narrow semi-closed building shape support formwork according to claim 1, characterized in that, At least one of the end templates includes an upper end sub-template with its top hinged to one end of the top template and a lower end sub-template with its bottom hinged to one end of the bottom template.

8. The narrow semi-closed building modeling support formwork according to claim 7, characterized in that At least one buckle is provided on each of the upper end sub-template and the lower end sub-template, and a clamping seat is provided on each of the top template and the bottom template. When the upper end sub-template and the lower end sub-template are respectively rotated to fit the top template and the bottom template, the buckle is detachably connected to the corresponding clamping seat.

9. The demolition method of the support formwork for the narrow semi-closed building shape according to any one of claims 1 to 8, characterized in that, It includes the following steps: Remove the outer upper template and the outer lower template that are attached to the upper and lower outer walls of the narrow semi-closed space; Remove the two end templates that are attached to the two end walls of the narrow semi-closed space; Pull the support rod outwards of the narrow semi-closed space, so that the support rod drives the hinge joint of the inner upper template and the inner lower template to move outwards, and makes the inner upper template and the inner lower template fold into a V shape and then move outwards, and drives the top template and the bottom template to fold into an M-shaped structure through the inner upper template and the inner lower template to separate from the inner wall of the narrow semi-closed space; Continue to pull the support rod outwards to drive the folded inner upper template, the inner lower template, the top template and the bottom template to separate from the narrow semi-closed space.

10. The method for removing the support formwork of the narrow semi-enclosed building shape according to claim 9, characterized in that, When pulling the support rod outwards to make the inner upper template and the inner lower template fold into a V shape and then move outwards, synchronously pull the upper reserved pull rope connected to the top template and the lower reserved pull rope connected to the bottom template, so that the upper reserved pull rope and the lower reserved pull rope pass through the limiting rings on the support rod and move outwards to drive the top template and the bottom template to fold into an M-shaped structure to separate from the inner wall of the narrow semi-closed space. Further pull the support rod, the upper reserved pull rope and the lower reserved pull rope outwards, so that the folded inner upper template, the inner lower template, the top template and the bottom template separate from the narrow semi-closed space.

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