Adjustable reinforcing hole opening structure for rail transit partition wall and construction method

Abstract

The invention discloses an adjustable reinforcing hole opening structure for a rail transit partition wall and a construction method, and relates to the technical field of wall bodies. The invention relates to an adjustable hole reinforcing structure for a rail transit partition wall. The adjustable hole reinforcing structure is characterized by comprising a core mold vertically arranged between an upper-layer floor slab and a lower-layer floor slab and an adhesion layer adhered to the surface of the core mold, a hole is formed in the core mold, and a buckling frame body is arranged at the edge of the hole; one end of the connecting assembly is connected with the buckling frame body, and the other end of the connecting assembly is connected with the upper floor or the lower floor. The buckling frame body is additionally arranged at the opening position of the partition wall, and the connecting plate body of the buckling frame body is used for sharing pressure, so that the pressure intensity and shearing force borne by the adhesion layer are reduced, the damage problem of the adhesion layer at the outer corner position of the opening is relieved, and the service life of the partition wall is prolonged. Corner reinforcing pieces are arranged at the outer corner positions of the buckling frame body and used for pulling and connecting the adhesion layers, and the problem that the adhesion layers at the outer corner positions of the hole crack is further solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wall, in particular to an adjustable reinforced opening structure for rail transit partition wall and a construction method thereof. BACKGROUND

[0002] Rail transit is a public transportation powered by electricity and running on rails, usually including subway, high-speed rail, light rail, etc. The partition wall for rail transit, such as the partition wall in the range of high-speed rail station and subway entrance, usually serves the functions of space division and decoration.

[0003] Cavity partition wall is a new type of partition wall technology, which requires coating a cementitious material on the surface of a core mold, and the finished product of the partition wall is obtained after the cementitious material hardens. This technology has the technical feature of fast construction.

[0004] Some cavity partition walls need to be provided with an opening (e.g. for installing a window). Vibration and noise are generated when vehicles pass through, which causes the cavity partition wall in the range of rail transit to bear more impact than ordinary cavity partition walls; and the opening is the weakest part of the cavity partition wall, which causes the cementitious material layer near the opening to crack frequently. SUMMARY

[0005] In order to overcome the problem of "overload damage of opening position of partition wall" in the background art, the present application provides an adjustable reinforced opening structure for rail transit partition wall and a construction method thereof.

[0006] The technical solution adopted by the present application to solve the above technical problems is: The adjustable reinforced opening structure for rail transit partition wall comprises a core mold erected between an upper floor slab and a lower floor slab, and an attached layer attached to the surface of the core mold; the core mold is provided with an opening, and the edge position of the opening is provided with a buckling frame; further comprising an erected connecting assembly, one end of the connecting assembly is connected with the buckling frame, and the other end is connected with the upper floor slab or the lower floor slab.

[0007] As a further optimization scheme of the present application, the connecting assembly comprises a rod body, one end of the rod body is threadedly connected with a first nut for pressing the buckling frame, and the other end is provided with an expansion structure for connecting the upper floor slab or the lower floor slab.

[0008] As a further optimization of the present invention, the upper floor slab or the lower floor slab is provided with a plug hole for accommodating the expansion structure; the expansion structure includes a tapered pull head fixedly disposed at the end of the rod body, an expansion sleeve sleeved on the outer periphery of the end of the rod body, and a second nut abutting against the end face of the expansion sleeve away from the tapered pull head; the second nut is threadedly connected to the rod body; when the second nut rotates, it can drive the tapered pull head to move towards the second nut, so as to drive the end of the expansion sleeve to expand and be adapted to press against the expansion hole; the end of the plug hole away from the second nut is connected to the expansion hole.

[0009] As a further optimization of the present invention, the expansion sleeve is provided with a plurality of second vertical grooves at the end near the tapered pull head, and an expansion side plate is provided between adjacent second vertical grooves; when the expansion side plate is squeezed by the tapered pull head, it can bend outward and be pressed into the expansion hole.

[0010] As a further optimization of the present invention, the core mold includes a template with an M-shaped cross-section. The templates are paired up and fitted together to form a circumferentially closed first cavity. The first cavity is upright and used to accommodate the upright connecting component.

[0011] As a further optimization of the present invention, the snap-fit ​​frame includes several snap-fit ​​profiles spliced ​​into a closed loop. The snap-fit ​​profiles include a connecting plate for sealing the end opening of the first cavity and a covering plate that is fitted to the outer wall of the core mold. The connecting plate is provided with a first leakage hole, through which the filler can flow into the first cavity and form a filling layer.

[0012] As a further optimization of the present invention, the attachment layer is provided with a steel mesh and corner reinforcements, the corner reinforcements having a mesh structure and being located at the outer corner of the fastening frame.

[0013] As a further optimization of the present invention, an upper profile for clamping and limiting the top end of the core mold is installed on the bottom surface of the upper floor slab; a lower profile for clamping and limiting the bottom end of the core mold is installed on the top surface of the lower floor slab.

[0014] As a further optimization of the present invention, the upper profile and the upper fastening profile are arranged with their openings facing each other; the lower profile and the lower fastening profile are arranged with their openings facing each other.

[0015] The construction method for an adjustable reinforced opening structure for rail transit partition walls, namely, the steps for constructing the adjustable reinforced opening structure for rail transit partition walls include: S1, installing the upper profile and the lower profile; then installing the connecting components; S2, installing the core mold, with the connecting components placed in the first cavity; S3, installing the snap-fit ​​frame; S4, installing the steel mesh and the corner reinforcement; then filling the first cavity with the filler; S5, applying the adhesive layer to the surface of the core mold.

[0016] In summary, the present invention has at least one of the following advantages: (1) A snap-fit ​​frame is added at the opening of the partition wall. The connecting plate of the snap-fit ​​frame is used to distribute the pressure, thereby reducing the pressure and shear force borne by the adhesive layer, thus alleviating the damage problem of the adhesive layer at the outer corner of the opening and extending the service life of the invention.

[0017] (2) Corner reinforcements are provided at the outer corners of the snap-fit ​​frame. The corner reinforcements are used to pull the attachment layer together, further mitigating the cracking problem of the attachment layer at the outer corners of the opening.

[0018] (3) The connecting component applies tension to the snap-fit ​​frame, so that the snap-fit ​​frame is tightly attached to the top / bottom surface of the opening and fixedly connected, which reduces the vibration amplitude of the snap-fit ​​frame due to receiving vibration energy, thereby reducing the problem of damage to the attachment layer at the opening.

[0019] (4) One end of the connecting component is provided with an expansion structure to enable quick installation with the upper / lower floor slab; the other end of the connecting component is provided with a first nut. When the height of the expansion structure deviates, the adjustable height of the first nut can be used to compensate for the deviation, thereby improving the error tolerance and efficiency of construction.

[0020] (5) The core mold has a first cavity, which is used to reduce the amount of cementitious material and reduce the cost of consumables. On the other hand, the upright cavity provides space for the upright connecting components, avoiding the problem of the connecting components hindering the two templates from fitting and connecting with each other.

[0021] (6) The connecting plate is provided with a first leakage hole, through which the user can inject the filler into the first cavity. After the filler hardens, a filling layer is formed. This construction method can further improve the structural strength of the opening and has the technical advantages of convenient operation and stable reliability.

[0022] (7) During construction, the connecting components are first connected to the upper floor slab / lower floor slab, and then the core mold is installed. This is to solve the problem that it is difficult for users to operate the expansion structure in the narrow first cavity and improve the convenience of construction.

[0023] (8) The two templates are inserted into the upper and lower profiles in an inclined state along the length of the upper profile. During the process, a V-shaped groove is formed between the two templates. The connecting component can move relative to each other along the V-shaped groove to solve the problem that the connecting component cannot move laterally from one (circumferentially closed) first cavity into another (circumferentially closed) first cavity.

[0024] (9) Two templates are set on both sides of the upper profile (and on both sides of the connecting component). Then the two templates move along the width direction of the upper profile and move closer to each other, so that the first cavity can cover the outer periphery of the connecting component.

[0025] (10) The upper profile includes a first fixed plate and a first rotating plate that can rotate, and the lower profile includes a second fixed plate and a second rotating plate. Both the first rotating plate and the second rotating plate can rotate to a horizontal state to make way for two templates that are close to each other, so that the two templates can be attached to each other and inserted between the first fixed plate and the second fixed plate.

[0026] (11) The first flip plate is temporarily bonded to the upper floor slab, which can avoid the problem that the first flip plate cannot maintain a horizontal state under its own weight (and rotates downward to a vertical state), and the template will not be blocked by the vertical first flip plate and cannot be inserted between the first fixed plate and the second fixed plate.

[0027] (12) The first fixed plate is provided with a first notch, which together with the upper floor slab forms a limiting transverse groove; when the first fixed plate is inserted into the limiting transverse groove, it can be restricted to a horizontal state (while rotating downwards to a vertical state), avoiding the problem of obstructing the template from moving laterally between the first fixed plate and the second fixed plate. In this type of form, the user only needs to perform simple rotation and insertion / removal operations on the first flip plate, which has the technical advantage of rapid operation.

[0028] (13) When the abutting crossbar rotates to the position where its top two ends abut against the bottom surface of the first flip plate, it can keep the first flip plate in a horizontal state (avoiding the problem of obstructing the template from moving laterally between the first and second fixed plates); when the abutting crossbar rotates to the position where its top two ends are below the first fixed plate and the template is also below the first fixed plate, it can engage the horizontal locking of the first flip plate. During the process of the two templates moving laterally along the width of the first fixed plate and approaching each other, the abutting crossbar can be rotated by using the horizontal push plate, so that the top two ends of the abutting crossbar move from below the first flip plate to below the first fixed plate. That is, the horizontal locking of the first flip plate is automatically released at the same time as the template moves. After the locking is released, the first flip plate can automatically rotate downwards to fit against the outer wall of the core mold (under its own gravity). No additional operation is required from the user, which has the technical advantages of being simple, fast and improving construction efficiency.

[0029] (14) During the process of the two templates approaching each other, the end of the abutting crossbar can be laterally abutted against the surface of the horizontal push plate and slide along the length of the template, thereby improving the smoothness of the rotation of the abutting crossbar and thus avoiding the problem of the end of the abutting crossbar abutting against the side wall of the first cavity (causing the template and the abutting crossbar to get stuck).

[0030] (15) If the accommodating notch in the middle of the core mold can accommodate the abutting crossbar set along the length of the core mold, the abutting crossbar will not occupy extra space in the core mold, so that the top and bottom of the template sidewall can be fitted and matched, ensuring that the width of the core mold is consistent from top to bottom, and improving the construction quality. Attached Figure Description

[0031] The present application will be further explained below with reference to the accompanying drawings: Figure 1 This is a front view schematic diagram of the overall structure of the present invention; Figure 2 A front view diagram showing the connecting components positioned below the snap-fit ​​frame. Figure 3 This is a top-down view of the location and structure of the opening; Figure 4 This is a top view of the cross section of the opening structure; Figure 5 This is a schematic diagram of the snap-fit ​​profile structure; Figure 6 This is a side view of the vertical section of the opening structure; Figure 7 This is a front view diagram of the connecting component structure; Figure 8 This is a front view schematic diagram of the expansion structure. Figure 9 This is a schematic diagram showing the template moving laterally along the length of the upper profile. Figure 10 This is a side view of the first and second elastic arc plate structures in a vertical section. Figure 11 This is a side view of the position and structure of the first and second flip plates. Figure 12 This is a schematic diagram of the first gap location and the structural elevation section side view; Figure 13 A schematic diagram of the position of the limiting cross brace and the front view of the structural elevation section; Figure 14 A schematic diagram showing the first flipping plate in the state of abutting against the crossbar support, viewed from an angle. Figure 15 A top-down view of the structure to accommodate the location of the gap; Figure 16 A top-down view showing the crossbar positioned within the receiving notch; Figure 17 This is a schematic diagram showing the position of the horizontal push plate and the oblique top view of the structure; Figure 18 This is a top view diagram showing the state of the horizontal push plate pushing against the rotating horizontal bar.

[0032] Explanation of reference numerals in the attached figures: In the picture, 1. Upper floor slab; 2. Lower floor slab; 3. Core mold; 301. Template; 3011. First vertical groove; 302. First cavity; 3021. Filling layer; 303. Accommodating notch; 304. Horizontal push plate; 31. Opening; 32. Snap-fit ​​frame; 320. Snap-fit ​​groove; 321. Snap-fit ​​profile; 3211. Connecting plate; 32111. Vertical insertion hole; 3212. Covering plate; 33. Connecting assembly; 331. Rod; 332. First nut; 333. Expansion structure; 3331. Conical pull head; 3332. Expansion sleeve; 33320. Second vertical groove; 33321. Expansion side plate; 3333. Abutting fin; 3334. Second nut; 334. Abutting crossbar; 34. Corner reinforcement; 4. Adhesive layer; 41. Supporting rib; 42. ; 43. ; 5. Upper profile; 501. First elastic arc plate; 51. First fixing plate; 511. First notch; 5111. Limiting transverse groove; 512. Connecting fin; 513. Strip hole; 52. First flip plate; 53. First rotating shaft; 6. Lower profile; 601. Second elastic arc plate; 61. Second fixing plate; 62. Second flip plate. Detailed Implementation

[0033] Based on the above-described structural features of this application, the implementation methods of this application will be further described as follows: Reference Figures 1-3 This embodiment provides an adjustable reinforced opening structure for rail transit partition walls, including a core mold 3 erected between an upper floor slab 1 and a lower floor slab 2, and an attachment layer 4 attached to the surface of the core mold 3; the core mold 3 has an opening 31 (for example, for installing a window or other structure). A snap-fit ​​frame 32 is provided at the edge of the opening 31. On the one hand, the snap-fit ​​frame 32 provides structural reinforcement to the opening 31, reducing the probability and extent of unnecessary deformation of the opening 31, thus reducing the problem of cracking of the attachment layer 4 located at the outer corner of the opening 31; on the other hand, the top, bottom, and side walls of the opening 31 can all be framed by the snap-fit ​​frame 32 to attach the attachment layer 4, reducing the shear force borne by the attachment layer 4 at the opening 31 (see reference). Figure 3Taking the bottom surface of opening 31 as an example, the horizontal cross-section of template 301 is narrow and the area is small. If the adhesion layer 4 is directly applied at this location, it will cause a large shear force. Vehicles frequently pass by near the track area, so the partition wall at this location experiences more vibration than in other usage scenarios. Excessive vibration on template 301 will generate greater pressure and shear force with the adhesion layer 4 at the opening 31, leading to damage and detachment of the adhesion layer 4. Therefore, this invention adds a snap-fit ​​frame 32, using the connecting plate 3211 of the snap-fit ​​frame 32 to distribute the pressure, thereby reducing pressure and shear force, thus alleviating the damage problem of the adhesion layer 4 at the opening 31 and extending the service life of this invention.

[0034] Reference Figure 3 , Figure 4 and Figure 5 The outer periphery of the fastening frame 32 is provided with a fastening groove 320, and the edge of the opening 31 can be adapted to be inserted into the fastening groove 320 along the circumferential direction, thereby preventing the fastening frame 32 from coming out laterally into the opening 31 and improving the structural stability of the invention.

[0035] Reference Figure 1 and Figure 2 Due to construction errors and other reasons, the fastening frame 32 and the opening 31 cannot be completely fitted together, and gaps may exist between them. When a vehicle passes by, the vibration energy generated is transmitted to the fastening frame 32, causing the fastening frame 32 to vibrate. This results in relative movement between the fastening frame 32 and the opening 31, leading to cracking and detachment of the adhesive layer 4 at the opening 31. To avoid such problems, the present invention also includes a vertically mounted connecting component 33. One end of the connecting component 33 is connected to the fastening frame 32, and the other end is connected to the upper floor slab 1 or the lower floor slab 2. When the connecting component 33 is positioned above the fastening frame 32, its top end is fixedly connected to the upper floor slab 1. The connecting component 33 can provide an upward pulling force to the fastening frame 32, making the top end of the fastening frame 32 fit tightly and be fixedly connected to the top surface of the opening 31. This reduces the vibration amplitude of the fastening frame 32 (due to receiving vibration energy), thereby mitigating the problem of damage to the adhesive layer 4 at the opening 31. When the connecting component 33 is located below the snap-fit ​​frame 32, its bottom end is fixedly connected to the lower floor slab 2. The connecting component 33 can provide a downward pulling force to the snap-fit ​​frame 32, so that the bottom end of the snap-fit ​​frame 32 is tightly attached to the bottom surface of the opening 31 and fixedly connected. This is used to reduce the vibration amplitude of the snap-fit ​​frame 32 (due to receiving vibration energy), thereby alleviating the problem of damage to the attachment layer 4 at the opening 31.

[0036] Reference Figure 1 The snap-fit ​​frame 32 includes several snap-fit ​​profiles 321 spliced ​​together in a closed loop. (Refer to...) Figure 5, the snap-in profile 321 includes a connecting plate body 3211 for blocking the end opening of the first cavity 302 and a covering plate body 3212 arranged in contact with the outer wall of the core mold 3; both side edges of one connecting plate body 3211 are perpendicularly and fixedly connected to the covering plate body 3212 respectively (for example, by integral fixed connection), and the two covering plate bodies 3212 are arranged in parallel and on the same side of the connecting plate body 3211. Therefore, one connecting plate body 3211 and the two covering plate bodies 3212 can be fixedly connected in a "C" shape. The snap-in groove 320 is arranged between the two covering plate bodies 3212.

[0037] Refer to Figure 6 With Figure 7 , the connecting component 33 includes a vertically arranged rod body 331. One end of the rod body 331 is threadedly connected with a first nut 332 for pressing the snap-in frame body 32, and the other end is provided with an expansion structure 333 for connecting the upper floor slab 1 or the lower floor slab 2.

[0038] Refer to Figure 8 , the upper floor slab 1 or the lower floor slab 2 is provided with an insertion hole for accommodating the expansion structure 333, and an expansion hole is communicated with the end of the insertion hole far from the second nut 3334.

[0039] Refer to Figure 7 With Figure 8 , the expansion structure 333 includes a tapered pull head 3331 fixedly arranged at the end of the rod body 331 (the tapered pull head 3331 gradually increases in the direction away from the rod body 331), an expansion sleeve 3332 sleeved on the outer periphery of the end of the rod body 331, and a second nut 3334 abutted against the end face of the expansion sleeve 3332 far from the tapered pull head 3331; the second nut 3334 is threadedly connected with the rod body 331; when the second nut 3334 rotates, it can drive the end of the rod body 331 to be pulled out of the insertion hole, and further drive the tapered pull head 3331 to move towards the direction close to the second nut 3334, so as to drive the end of the expansion sleeve 3332 to expand and (make the end of the expansion sleeve 3332) be adaptively pressed against the expansion hole. The minimum diameter of the tapered pull head 3331 is smaller than the inner diameter of the expansion sleeve 3332; the maximum diameter of the tapered pull head 3331 is larger than the inner diameter of the expansion sleeve 3332.

[0040] Refer to Figure 8The expansion sleeve 3332 has a cylindrical structure. At the end of the expansion sleeve 3332 near the conical pull head 3331, several second vertical grooves 33320 are provided. These grooves are arranged in a circumferential array (at equal angles and intervals) along the side wall of the expansion sleeve 3332. An expansion side plate 33321 is provided between adjacent second vertical grooves 33320. The end of the expansion side plate 33321 is integrally fixedly connected to the expansion sleeve 3332. The connection point between the expansion side plate 33321 and the expansion sleeve 3332 is bendable. The expansion side plate 33321 is located on the outer periphery of the connection point between the conical pull head 3331 and the rod 331. When the expansion side plate 33321 is squeezed by the conical pull head 3331, it can bend outwards and be pressed into the expansion hole, thereby achieving (directional) expansion of the expansion sleeve 3332 and avoiding the problem of local cracking of the expansion sleeve 3332.

[0041] Reference Figure 8 The expansion sleeve 3332 has an abutment fin 3333 fixedly installed on its end face near the second nut 3334 (for example, by an integral fixed connection). The abutment fin 3333 is coaxially arranged with the expansion sleeve 3332. When the second nut 3334 rotates, its end face is in contact with the end face of the abutment fin 3333, thereby reducing the friction (when the end face of the second nut 3334 is in contact with and slides against the bottom surface of the upper floor slab 1 of the concrete structure or the top surface of the lower floor slab 2 of the concrete structure, a greater friction is generated, which makes it difficult for the second nut 3334 to rotate).

[0042] Reference Figure 3 and Figure 4 The core mold 3 includes a template 301 with an M-shaped cross section. The templates 301 are paired and fitted together to form a circumferentially closed first cavity 302. The two templates 301 are arranged in a symmetrical manner and are fixedly connected at the fitting position (e.g., by self-tapping screws). The first cavity 302 is upright and is used to accommodate the upright connecting component 33.

[0043] Reference Figure 4 The outer wall of the template 301 is provided with a first vertical groove 3011, and a support rib 41 is provided in the vertical groove and is integrally fixedly connected to the attachment layer 4. Since the two templates 301 are arranged in a pair in an axially symmetrical manner, the two support ribs 41 are also arranged in an axially symmetrical manner and abut against each other, which is used to apply support force between the attachment layers 4 on both sides, so as to avoid the problem of the attachment layer 4 being concave and cracked due to overload deformation of the template 301 (during the use of this invention, the attachment layer 4 may be subjected to horizontal impact; for example, bumps when people pass by).

[0044] Reference Figure 3 and Figure 6A filling layer 3021 for improving the structural strength of the opening 31 is provided in the first cavity 302 located above or below the opening 31. The filling layer 3021 is fixedly connected to the attachment layer 4 (e.g., by an integral fixed connection).

[0045] Reference Figure 5 and Figure 6 The connecting plate 3211 is provided with a first drain hole, through which the filler can flow into the first cavity 302 and form a filling layer 3021. Users can then inject the filler into the first cavity 302 through the first drain hole. After the filler hardens, the filling layer 3021 is formed.

[0046] Reference Figure 7 The connecting plate 3211 has a vertical insertion hole 32111 (for accommodating the end of the rod 331); when the end of the rod 331 is inserted into the vertical insertion hole 32111, the user installs the first nut 332 at the end of the rod 331 and continues to rotate it, so that the first nut 332 is pressed against the connecting plate 3211, thereby stably pressing the fastening profile 321 at the edge of the opening 31.

[0047] The attachment layer 4 contains a steel mesh and corner reinforcements 34. The corner reinforcements 34 have a mesh structure and are located at the outer corners of the snap-fit ​​frame 32. The steel mesh is attached to the outer wall of the core mold 3 (e.g., fixed by self-tapping screws and washers), and the surface of the steel mesh is galvanized for rust prevention. The corner reinforcements 34 are attached to the outer wall of the core mold 3 (e.g., fixed by self-tapping screws and washers).

[0048] Reference Figure 1 and Figure 6 The bottom surface of the upper floor slab 1 is equipped with an upper profile 5 for clamping the top of the limiting core mold 3 (for example, fixedly connected by expansion bolts); the top surface of the lower floor slab 2 is equipped with a lower profile 6 for clamping the bottom of the limiting core mold 3 (for example, fixedly connected by expansion bolts).

[0049] Reference Figure 1 and Figure 6 The upper profile 5 and the upper snap-fit ​​profile 321 are arranged with their openings facing each other; the lower profile 6 and the lower snap-fit ​​profile 321 are also arranged with their openings facing each other. The upper profile 5 has an n-shaped cross-section with its opening facing downwards, used to engage the top of the limiting core mold 3; the lower profile 6 has a U-shaped cross-section with its opening facing upwards, used to engage the bottom of the limiting core mold 3. The upper profile 5 and the lower profile 6 are arranged in parallel.

[0050] Reference Figure 3 and Figure 9Because the two templates 301 in the assembled core mold 3 have a mutually fitting part, which separates the first cavity 302, the pre-installed connecting component 33 cannot move laterally from one first cavity 302 into another when the core mold 3 is inserted laterally between the upper profile 5 and the lower profile 6. To avoid this problem, taking the connecting component 33 installed above the opening 31 as an example: when installing the core mold 3, the two templates 301 are erected with their bottom sidewalls touching each other and their top sidewalls tilted outwards (without contact, to form a V-groove structure). Then, the core mold 3 is inserted laterally between the upper profile 5 and the lower profile 6 along the length of the upper profile 5 (so the connecting component 33 can move relative to each other within the V-groove). After the core mold 3 is fully inserted between the upper profile 5 and the lower profile 6, the tops of the two templates 301 are then touched together and fixedly connected (for example, using self-tapping screws). In this case, the upper profile 5 and the lower profile 6 need to undergo elastic deformation (refer to...). Figure 10 For example, first elastic arc plates 501 are installed at the bottom of the two inner sidewalls of the upper profile 5, and second elastic arc plates 601 are installed at the top of the two inner sidewalls of the lower profile 6. When the V-groove opens, the first elastic arc plate 501 and the second elastic arc plate 601 are deformed by pressure and make room. When the V-groove opens and closes, the first elastic arc plate 501 and the second elastic arc plate 601 rebound and limit the core mold 3. The bottom edge of the first elastic arc plate 501 is fixedly connected to the bottom edge of the upper profile 5 by an integral fixed connection or by bolts. The top edge of the second elastic arc plate 601 is fixedly connected to the top edge of the lower profile 6 by an integral fixed connection or by bolts.

[0051] Reference Figure 11 To solve the problem that the connecting component 33 cannot move laterally from one first cavity 302 into another first cavity 302: the upper profile 5 includes a first fixing plate 51 and a first flip plate 52 rotatably disposed at the edge of the first fixing plate 51, and the lower profile 6 includes a second fixing plate 61 and a second flip plate 62 rotatably disposed at the edge of the second fixing plate 61. During construction, first, the first fixing plate 51 is fixedly connected to the upper floor slab 1, and the second fixing plate 61 is fixedly connected to the lower floor slab 2. Then, the first flip plate 52 is rotated to fit against the bottom surface of the upper floor slab 1, and the second flip plate 62 is rotated to fit against the top surface of the lower floor slab 2. Then, the two templates 301 are placed on both sides of the connecting component 33 and moved along the width direction of the first fixing plate 51 so that the two templates 301 are close to each other until they fit together (during this process, the first cavity 302 is covered and set on the outer periphery of the connecting component 33). Then, the two templates 301 are fixedly connected. Then, the first flip plate 52 is rotated to fit against the outer wall of the template 301 and fixedly connected (for example, by using self-tapping screws). The second flip plate 62 is rotated to fit against the outer wall of the template 301 and fixedly connected (for example, by using self-tapping screws).

[0052] To prevent the first flip plate 52 from rotating from a horizontal position (i.e., when it is in contact with the top surface of the upper floor slab 1) to a vertical position under its own weight (the vertical position would hinder the contact between the two templates 301): hot melt adhesive is used to temporarily bond the first flip plate 52 and the upper floor slab 1 (later users can heat the hot melt adhesive until the first flip plate 52 and the upper floor slab 1 separate, then the first flip plate 52 can rotate to the position of being in contact with the outer wall of the core mold 3).

[0053] Reference Figure 12 and Figure 13 To prevent the first flip plate 52 from rotating from a horizontal position (i.e., when it is in contact with the top surface of the upper floor slab 1) to a vertical position under its own weight (a vertical position would hinder the contact of the two templates 301): the vertical section of the first fixing plate 51 is convex; the top edge of the first fixing plate 51 is provided with a first notch 511, which can form a limiting transverse groove 5111 with the top surface of the upper floor slab 1. When the template 301 is inserted horizontally into the space between the first fixing plate 51 and the second fixing plate 61 along the width direction of the first fixing plate 51, the end of the first flip plate 52 is inserted into the limiting transverse groove 5111 to maintain a horizontal position. A connecting fin 512 is fixedly installed on the outer wall of the first fixed plate 51. A transversely arranged strip hole 513 is provided on the side wall of the first notch 511. One end of the strip hole 513 is placed inside the first notch 511, and the other end is placed at the position of the connecting fin 512. The first fixed plate 51 and the first flip plate 52 are rotatably connected by a first rotating shaft 53. The first rotating shaft 53 is inserted into the strip hole 513 and can slide (along the length direction of the strip hole 513). Both ends of the first rotating shaft 53 are inserted into the strip hole 513 to ensure flow sliding. The first rotating shaft 53 is arranged along the length direction of the first fixed plate 51, and the strip hole 513 is arranged along the width direction of the first fixed plate 51. The strip holes 513 are arranged in pairs, and the connecting fins 512 are arranged in pairs. After the first flip plate 52 is pulled out from the limiting groove, it can rotate to a vertical state and fit against the outer wall of the core mold 3.

[0054] Reference Figure 14 To prevent the first flip plate 52 from rotating from a horizontal (i.e., when it is in contact with the top surface of the upper floor slab 1) to a vertical position under its own weight (a vertical position would hinder the contact of the two templates 301): a horizontally arranged abutment bar 334 is provided below the first fixed plate 51, and the middle part of the abutment bar 334 is rotatably connected to the rod body 331 (e.g., through a threaded connection); before the template 301 moves laterally to below the first flip plate 52, the top two ends of the abutment bar 334 are used to support the first flip plate 52 upwards, so that the first flip plate 52 remains in a horizontal position (i.e., in contact with the upper floor slab 1). (Refer to...) Figure 15 and Figure 16A receiving notch 303 is provided on one side of the top of the template 301. When two templates 301 are joined together (to obtain the core mold 3), the receiving notch 303 is located at the middle of the top of the core mold 3 and can accommodate the abutting crossbar 334 (which is arranged parallel to the length direction of the core mold 3). (Refer to...) Figure 17 and Figure 18 A horizontal push plate 304 is installed at the top of the template 301 (e.g., fixed by bolts or adhesive). The horizontal push plate 304 is located outside the receiving notch 303. When the two templates 301 approach each other along the width direction of the first fixed plate 51 (i.e., assembled into the core mold 3), the horizontal push plate 304 is set along the length direction of the template 301. The horizontal push plate 304 can push the abutting crossbar 334 to rotate around the upright, so that the top end of the abutting crossbar 334 moves from below the first flip plate 52 to below the first fixed plate 51. When the template 301 also moves to below the first fixed plate 51, the horizontal lock of the first flip plate 52 is released, and the first flip plate 52 rotates to a vertical state under its own weight and fits against the outer wall of the core mold 3. At this time, the user can use self-tapping screws to fix the first flip plate 52 to the core mold 3. When the two templates 301 move to fit together, the receiving notch 303 can accommodate the abutting crossbar 334 located in the middle of the core mold 3 and arranged along the length of the core mold 3, that is, to minimize the gap between the core mold 3 and the first fixing plate 51.

[0055] The rod 331 is inserted into the first fixed plate 51 in a cross shape. The abutting crossbar 334 can be arranged along the width direction of the first fixed plate 51, thereby simultaneously supporting the first fixed plate 51 and the first flip plate 52 upward.

[0056] The depth of the accommodating notch 303 is greater than the height of the abutting crossbar 334, which is used to compensate for the displacement in the height direction generated when the abutting crossbar 334 rotates along the external thread of the rod body 331. The user can rotate the abutting crossbar 334 to adjust its height position until the top surface of the abutting crossbar 334 is in contact with the bottom surface of the first fixed plate 51 and the top surface of the first flip plate 52, so that the first fixed plate 51 and the first flip plate 52 are coplanar and horizontally set.

[0057] The top surface of the abutting crossbar 334 is provided with an elastic layer (such as a sponge layer, rubber layer, etc.) to reduce the height change of the first flip plate 52 during the process of the abutting crossbar 334 supporting the first flip plate 52 upward.

[0058] Reference Figure 18 The angle R between the length direction of template 301 and the length direction of the abutting crossbar 334 is less than 90 degrees and greater than 0 degrees, usually 30 degrees, 45 degrees or 60 degrees, so as to ensure that template 301 can smoothly push the abutting crossbar 334 to rotate when it moves laterally.

[0059] Reference Figure 18 The length of the horizontal push plate 304 is set along the length of the template 301. As the two templates 301 approach each other, the end of the abutting bar 334 can laterally abut against the surface of the horizontal push plate 304 and slide along the length of the template 301, improving the smoothness of the rotation of the abutting bar 334, thereby avoiding the problem of the end of the abutting bar 334 abutting against the side wall of the first cavity 302 (causing the template 301 and the abutting bar 334 to get stuck).

[0060] A first flip plate 52 is provided on each side of the first fixed plate 51, and the edge of the first fixed plate 51 is rotatably connected to the edge of the first flip plate 52.

[0061] The first fixing plate 51 is provided with a receiving hole for accommodating the rod 331.

[0062] The width of the first fixing plate 51 is adapted to the width of the core mold 3, and the width of the second fixing plate 61 is adapted to the width of the core mold 3, so that the first flip plate 52 and the second flip plate 62 can fit and conform to the outer wall of the core mold 3.

[0063] The bottom surface of the first flip plate 52 is provided with a snap groove for easy gripping by the user.

[0064] The attachment layer 4, the support rib 41, and the filler all contain cementitious materials (such as concrete materials, which can be cured after being sprayed onto the core mold 3; the concrete is lightweight concrete such as all-lightweight concrete, lightweight aggregate concrete, etc., so that the present invention has the smallest possible weight).

[0065] In this invention, the lateral movement of template 301 can be achieved by manual pushing / pulling or by machine driving.

[0066] The construction method for adjustable reinforced opening structures used in rail transit partition walls, namely, the steps for constructing adjustable reinforced opening structures for rail transit partition walls, include: S1. Install the upper profile 5 and the lower profile 6 (that is, install the upper profile 5 on the bottom surface of the upper floor slab 1 and install the lower profile 6 on the top surface of the lower floor slab 2); then install the connecting component 33 (that is, install the expansion structure 333 of the connecting component 33 into the insertion hole).

[0067] S2. Install the core mold 3 (that is, install the core mold 3 between the upper profile 5 and the lower profile 6), and vertically insert the connecting component 33 into the first cavity 302.

[0068] S3. Install the snap-fit ​​frame 32 (that is, snap the snap-fit ​​profile 321 onto the core mold 3 at the outer edge of the opening 31; then install the first nut 332 onto the rod 331 and tighten it until the first nut 332 is pressed into contact with the snap-fit ​​profile 321; use self-tapping screws to fix the snap-fit ​​profile 321 to the template 301).

[0069] S4. Install the steel mesh and corner reinforcement 34; then fill the cavity 302 with filler. S5. Apply the adhesive layer 4 to the surface of the core mold 3 by spraying; after the adhesive layer 4 has hardened, a finished partition wall with opening 31 is obtained.

[0070] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0071] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0072] In conclusion, for those skilled in the art, any changes, modifications, substitutions, or variations made to this invention based on the guidance of this invention, without departing from the principles and spirit of this invention, still fall within the protection scope of this invention.

Claims

1. An adjustable reinforced opening structure for use in rail transit partition walls, characterized in that: It includes a core mold (3) erected between the upper floor slab (1) and the lower floor slab (2) and an attachment layer (4) attached to the surface of the core mold (3); the core mold (3) has an opening (31) and a fastening frame (32) is provided at the edge of the opening (31); It also includes a vertically placed connecting component (33), one end of which is connected to the fastening frame (32) and the other end is connected to the upper floor slab (1) or the lower floor slab (2).

2. The adjustable reinforced opening structure for rail transit partition walls according to claim 1, characterized in that: The connecting assembly (33) includes a rod (331), one end of which is threadedly connected to a first nut (332) for pressing the fastening frame (32), and the other end is fitted with an expansion structure (333) for connecting the upper floor slab (1) or the lower floor slab (2).

3. The adjustable reinforced opening structure for rail transit partition walls according to claim 2, characterized in that: The upper floor slab (1) or the lower floor slab (2) is provided with a plug hole for accommodating the expansion structure (333); The expansion structure (333) includes a tapered pull head (3331) fixedly disposed at the end of the rod (331), an expansion sleeve (3332) sleeved on the outer periphery of the end of the rod (331), and a second nut (3334) abutting against the end face of the expansion sleeve (3332) away from the tapered pull head (3331); the second nut (3334) is threadedly connected to the rod (331); when the second nut (3334) rotates, it can drive the tapered pull head (3331) to move closer to the second nut (3334) so ​​as to drive the end of the expansion sleeve (3332) to expand and be adapted to the expansion hole for pressing. The end of the insertion hole away from the second nut (3334) is connected to an expansion hole.

4. The adjustable reinforced opening structure for rail transit partition walls according to claim 3, characterized in that: The expansion sleeve (3332) has several second vertical grooves (33320) at the end near the tapered pull head (3331), and an expansion side plate (33321) is provided between adjacent second vertical grooves (33320); the expansion side plate (33321) can bend outward and be pressed into the expansion hole when it is squeezed by the tapered pull head (3331).

5. The adjustable reinforced opening structure for rail transit partition walls according to claim 4, characterized in that: The core mold (3) includes a template (301) with an M-shaped cross section. The templates (301) are paired up and fitted together to form a circumferentially closed first cavity (302). The first cavity (302) is upright and used to accommodate the upright connecting component (33).

6. The adjustable reinforced opening structure for rail transit partition walls according to claim 5, characterized in that: The snap-fit ​​frame (32) includes several snap-fit ​​profiles (321) spliced ​​into a closed loop. The snap-fit ​​profiles (321) include a connecting plate (3211) for sealing the end opening of the first cavity (302) and a covering plate (3212) that is fitted to the outer side wall of the core mold (3). The connecting plate (3211) is provided with a first leakage hole, through which the filler can flow into the first cavity (302) and form a filling layer (3021).

7. The adjustable reinforced opening structure for rail transit partition walls according to claim 6, characterized in that: The attachment layer (4) is provided with a steel mesh and corner reinforcement (34), the corner reinforcement (34) is a mesh structure and is located at the outer corner of the fastening frame (32).

8. The adjustable reinforced opening structure for rail transit partition walls according to claim 7, characterized in that: The bottom surface of the upper floor slab (1) is equipped with an upper profile (5) for clamping and limiting the top of the core mold (3); the top surface of the lower floor slab (2) is equipped with a lower profile (6) for clamping and limiting the bottom of the core mold (3).

9. The adjustable reinforced opening structure for rail transit partition walls according to claim 8, characterized in that: The upper profile (5) and the upper fastening profile (321) are arranged with their openings facing each other; the lower profile (6) and the lower fastening profile (321) are arranged with their openings facing each other.

10. A construction method for an adjustable reinforced opening structure used in rail transit partition walls, characterized in that, The steps for constructing the adjustable reinforced opening structure for rail transit partition walls as described in claim 9 include: S1. Install the upper profile (5) and the lower profile (6); then install the connecting assembly (33); S2. Install the core mold (3), and place the connecting component (33) inside the first cavity (302); S3. Install the fastening frame (32); S4. Install the steel mesh and the corner reinforcement (34); then fill the cavity (302) with the filler. S5. The attachment layer (4) is disposed on the surface of the core mold (3).

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