Connecting device for fabricated building wallboards

Abstract

The utility model provides an assembly type building wallboard connecting device which comprises a first wallboard, a plurality of second wallboards and a connecting mechanism, the first wallboard is horizontally placed on a mounting surface, a plurality of positioning grooves are formed in the first wallboard, and first limiting grooves are formed in the positioning grooves; the plurality of second wallboards are sequentially and vertically mounted on the first wallboard, and the second wallboards are detachably connected with the first wallboard; and the connecting mechanism is arranged on the second wall plate, the connecting mechanism is inserted into the positioning groove, and the second wall plate is detachably connected with the first wall plate through clamping connection with the first limiting groove. According to the connecting structure, through the arrangement of the structure, the connecting mechanism can be inserted into the positioning groove so that the connecting mechanism can be connected with the first limiting groove in a clamped mode, the first wallboard and the second wallboard can be rapidly and conveniently connected, and then the installation efficiency of an assembly type building is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled buildings, in particular to a connecting device for assembled building wall panels. Background Art

[0002] Prefabricated buildings refer to buildings that transfer a large amount of on-site work in traditional construction methods to factories, where building components and accessories are processed and manufactured in factories, transported to the construction site, and assembled and installed on-site through reliable connection methods. With the rapid development of society, the application of prefabricated buildings is becoming more and more extensive. However, during the installation process of prefabricated buildings, a large number of bolts are usually required to fix the wall panels of prefabricated buildings to ensure the stability of the prefabricated buildings. Due to the use of a large number of bolts, a lot of time is required, which reduces the installation efficiency of prefabricated buildings. At the same time, when the prefabricated buildings need to be dismantled, the bolts are easily oxidized, which makes it difficult to remove the nuts from the studs, making the prefabricated buildings difficult to dismantle. Utility Model Content

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that the installation efficiency of the prefabricated building is low due to the need to use a large number of bolts to connect the existing prefabricated building wall panels.

[0004] To this end, the present invention provides a connection device for assembled building wall panels, comprising:

[0005] A first wall panel is horizontally placed on the installation surface, wherein a plurality of positioning grooves are provided on the first wall panel, and a first limiting groove is provided in each of the positioning grooves;

[0006] A plurality of second wall panels are vertically mounted on the first wall panels in sequence, and the second wall panels are detachably connected to the first wall panels;

[0007] The connecting mechanism is provided on the second wall panel. The connecting mechanism is inserted into the positioning groove and is engaged with the first limiting groove so that the second wall panel is detachably connected to the first wall panel.

[0008] Optionally, the connecting mechanism includes:

[0009] A positioning block is arranged in the positioning groove, a cavity is arranged in the positioning block, a through hole is arranged on the side of the positioning block, and the positioning block is hollow;

[0010] A moving component is disposed in the cavity, and the moving component passes through the through hole and is engaged with the first limiting groove;

[0011] a rotating assembly connected to the moving assembly, wherein the rotating assembly drives the moving assembly to move so that the moving assembly engages with the first limiting groove;

[0012] Under the action of the rotating assembly, the moving assembly has a clamping state with the first wall panel and a separation state with the first wall panel.

[0013] Optionally, the moving component includes:

[0014] a movable plate, disposed in the cavity, connected to the rotating assembly, and adapted to slide in the cavity;

[0015] a first limiting block, one end of which is fixedly connected to the movable plate, and the other end of which passes through the through hole on the positioning block and extends into the first limiting groove;

[0016] Under the action of the rotating assembly, the first limiting block slides in the first limiting groove, and the first limiting block has a clamping state of extending into the first limiting groove and a separation state of leaving the first limiting groove.

[0017] Optionally, the moving component further includes:

[0018] A thrust spring, one end of which is connected to the movable plate, and the other end of which is connected to the inner wall of the cavity of the positioning block, is used to separate the first limiting block from the first limiting groove.

[0019] Optionally, the rotating assembly includes:

[0020] a rotating member abutting against the movable plate, wherein the rotating member is elliptical and is suitable for driving the movable plate to move;

[0021] A connecting rod, fixedly connected to the rotating member, wherein a sliding groove is provided inside the connecting rod;

[0022] an elastic unit, disposed in the chute, one end of the elastic unit being connected to an inner wall of the chute;

[0023] A knob is connected to the other end of the elastic unit, and the knob is suitable for driving the rotating member to rotate.

[0024] Optionally, the elastic unit includes:

[0025] a telescopic rod, disposed in the slide groove, and having one end connected to the knob;

[0026] a slider connected to the other end of the telescopic rod, the slider being adapted to slide in the slide groove;

[0027] A tension spring has one end connected to the inner wall of the sliding groove and the other end connected to the sliding block.

[0028] Optionally, the rotating assembly further includes:

[0029] A limiting unit is provided on the positioning block, and the limiting unit is suitable for limiting the rotation of the rotating assembly.

[0030] Optionally, the limiting unit includes:

[0031] A second limiting groove is provided at one end of the positioning block close to the knob;

[0032] The second limiting block is arranged at one end of the knob close to the positioning block. The second limiting block is suitable for being inserted into the second limiting groove to limit the rotation of the rotating assembly.

[0033] Optionally, the connecting mechanism further includes:

[0034] A guide assembly is arranged in the cavity of the positioning block, and the guide assembly is suitable for guiding the moving assembly.

[0035] Optionally, the guide assembly includes:

[0036] A guide groove is provided on the inner wall of the positioning block;

[0037] A guide member is provided on the movable plate, and the guide member is suitable for sliding in the guide groove.

[0038] The technical solution of this utility model has the following advantages:

[0039] 1. The utility model provides a connection device for prefabricated building wall panels, including a first wall panel, a plurality of second wall panels and a connection mechanism, wherein the first wall panel is horizontally placed on a mounting surface, a plurality of positioning grooves are provided on the first wall panel, and a first limiting groove is provided in the positioning groove; a plurality of second wall panels are vertically installed on the first wall panel in sequence, and the second wall panels are detachably connected to the first wall panel; the connection mechanism is provided on the second wall panel, and the connection mechanism is inserted into the positioning groove, and is engaged with the first limiting groove so that the second wall panel is detachably connected to the first wall panel.

[0040] During the installation of prefabricated buildings, a large number of bolts are typically required to secure the wall panels of the prefabricated building to ensure its stability. The large number of bolts used consumes considerable time, reducing the efficiency of the prefabricated building installation. Furthermore, when the prefabricated building needs to be dismantled, the bolts are susceptible to oxidation, making it difficult to remove the nuts from the studs, making the prefabricated building difficult to disassemble. In an embodiment of the present invention, by inserting the connecting mechanism into the positioning slot and engaging the connecting mechanism with the first limiting slot, the first wall panel and the second wall panel can be quickly and conveniently connected, thereby improving the installation efficiency of the prefabricated building.

[0041] 2. The present invention provides a connection device for prefabricated building wall panels, wherein the movable assembly includes a movable plate and a first limiting block, the movable plate being disposed in the cavity, the movable plate being connected to the rotating assembly, and the movable plate being adapted to slide in the cavity; one end of the first limiting block being fixedly connected to the movable plate, and the other end of the first limiting block extending through a through hole on the positioning block into the first limiting groove; under the action of the rotating assembly, the first limiting block slides in the first limiting groove, and the first limiting block has a snap-on state in which it extends into the first limiting groove, and a disengaged state in which it leaves the first limiting groove. In an embodiment of the present invention, the rotation of the rotating assembly drives the movable plate to move toward both sides, causing the first limiting block to be inserted into the first limiting groove, and the first limiting block to snap-on with the first wall panel, completing the connection between the second wall panel and the first wall panel. Through the above operation, the connection between the second wall panel and the first wall panel is more convenient.

[0042] 3. The present invention provides a connection device for prefabricated building wall panels, wherein the rotating assembly further comprises a limiting unit, which is disposed on the positioning block and is adapted to limit the rotation of the rotating assembly. In an embodiment of the present invention, the limiting unit is provided so that when the first limiting block is inserted into the first limiting groove, the limiting unit restricts the rotating assembly, preventing the rotating assembly from rotating, causing the first limiting block to slide out of the first limiting groove, thereby separating the first wall panel from the second wall panel and causing the prefabricated building to become unstable.

[0043] 4. The present invention provides a connection device for prefabricated building wall panels. The connection mechanism further includes a guide assembly disposed within the cavity of the positioning block and adapted to guide the movable assembly. In embodiments of the present invention, the provision of the guide assembly enables the movable assembly to slide evenly and stably within the cavity of the positioning block, preventing the movable panel from tilting, which could lead to sliding jams. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0045] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0046] Figure 2 This is a schematic diagram of a structural cross-section of the utility model at one angle;

[0047] Figure 3 This is a partially enlarged schematic diagram of the structure at point A of the present utility model;

[0048] Figure 4 This is a schematic cross-sectional view of the structure of the present invention from another angle;

[0049] Figure 5 It is a partial enlarged schematic diagram of the structure at B of the utility model.

[0050] Description of the accompanying drawings in the embodiments:

[0051] 1. First wall panel; 2. Second wall panel; 3. Connecting mechanism; 4. Entrance door;

[0052] 11. Positioning slot; 12. First limiting slot;

[0053] 31. Positioning block; 32. Moving assembly; 33. Rotating assembly; 34. Guide assembly;

[0054] 321, movable plate; 322, first limit block; 323, thrust spring;

[0055] 331. Rotating member; 332. Connecting rod; 333. Elastic unit; 334. Knob; 335. Limiting unit;

[0056] 3321, chute;

[0057] 3331, telescopic rod; 3332, slider; 3333, tension spring;

[0058] 3351, second limiting groove; 3352, second limiting block;

[0059] 341. Guide groove; 342. Guide member. DETAILED DESCRIPTION

[0060] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0061] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0062] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0063] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0064] Example

[0065] like Figures 1 to 5 As shown, this embodiment provides a connection device for prefabricated building wall panels, including a first wall panel 1, multiple second wall panels 2 and a connection mechanism 3. The first wall panel 1 is placed horizontally on the installation surface, and multiple positioning grooves 11 are provided on the first wall panel 1. The positioning grooves 11 are provided with first limiting grooves 12; multiple second wall panels 2 are vertically installed on the first wall panel 1 in sequence, and the second wall panels 2 are detachably connected to the first wall panel 1; the connection mechanism 3 is provided on the second wall panel 2, and the connection mechanism 3 is inserted into the positioning groove 11, and is clamped with the first limiting groove 12, so that the second wall panel 2 is detachably connected to the first wall panel 1.

[0066] In an embodiment of the present utility model, the first wall panel 1 is first placed in the installation position, and then the connecting mechanism 3 is inserted into the positioning groove 11, and then the connecting mechanism 3 is driven to engage with the first limiting groove 12, thereby connecting the second wall panel 2 to the first wall panel 1, and then another first wall panel 1 is installed to the top of the second wall panel 2 to complete the connection between the first wall panel 1 and the second wall panel 2 and the installation of the prefabricated building.

[0067] During the installation of prefabricated buildings, a large number of bolts are usually required to secure the wall panels of the prefabricated building to ensure the stability of the prefabricated building. The use of a large number of bolts consumes a lot of time, reducing the installation efficiency of the prefabricated building. At the same time, when the prefabricated building needs to be dismantled, the bolts are easily oxidized, making it difficult to remove the nuts from the studs, making the prefabricated building difficult to disassemble. In an embodiment of the present utility model, by inserting the connecting mechanism 3 into the positioning groove 11, the connecting mechanism 3 is engaged with the first limiting groove 12, so that the first wall panel 1 and the second wall panel 2 can be quickly and conveniently connected, thereby improving the installation efficiency of the prefabricated building.

[0068] Specifically, if Figure 3 and Figure 5 As shown, the connecting mechanism 3 includes a positioning block 31, a moving component 32 and a rotating component 33. The positioning block 31 is arranged in the positioning groove 11. A cavity is provided in the positioning block 31. A through hole is provided on the side of the positioning block 31, and the positioning block 31 is hollow; the moving component 32 is arranged in the cavity, and the moving component 32 passes through the through hole to be engaged with the first limiting groove 12; the rotating component 33 is connected to the moving component 32, and the rotating component 33 drives the moving component 32 to move, so that the moving component 32 is engaged with the first limiting groove 12; under the action of the rotating component 33, the moving component 32 has a engaged state with the first wall panel 1, and a separated state with the first wall panel 1. By manually rotating the rotating component 33, the moving component 32 is driven to move to both sides in the cavity, so that the moving component 32 is inserted into the first limiting groove 12 and is engaged with the first limiting groove 12, thereby engaging the moving component 32 with the first wall panel 1, that is, the second wall panel 2 is engaged with the first wall panel 1; when the rotating component 33 is manually rotated in the opposite direction, the moving component 32 moves from both sides to the middle, the moving component 32 is separated from the first limiting groove 12, and the second wall panel 2 is separated from the first wall panel 1.

[0069] Furthermore, if Figure 3As shown, the moving component 32 includes a moving plate 321 and a first limit block 322, the moving plate 321 is arranged in the cavity, the moving plate 321 is connected to the rotating component 33, and the moving plate 321 is suitable for sliding in the cavity; one end of the first limit block 322 is fixedly connected to the moving plate 321, and the other end of the first limit block 322 passes through the through hole on the positioning block 31 and extends into the first limit groove 12; under the action of the rotating component 33, the first limit block 322 slides in the first limit groove 12, and the first limit block 322 has a clamping state extending into the first limit groove 12, and a separated state leaving the first limit groove 12. In an embodiment of the present utility model, the rotation of the rotating assembly 33 drives the movable plate 321 to move to both sides, so that the first limit block 322 is inserted into the first limit groove 12, and the first limit block 322 is engaged with the first wall panel 1 to complete the connection between the second wall panel 2 and the first wall panel 1. Through the above operation, the connection between the second wall panel 2 and the first wall panel 1 is more convenient.

[0070] Furthermore, the moving component 32 also includes a thrust spring 323, one end of the thrust spring 323 is connected to the moving plate 321, and the other end of the thrust spring 323 is connected to the inner wall of the cavity of the positioning block 31, so that the first limiting block 322 is separated from the first limiting groove 12 through the thrust spring 323. When the rotating component 33 is rotated, the rotating component 33 drives the movable plate 321 to move to both sides, and then drives the first limit block 322 to move until the first limit block 322 is inserted into the first limit groove 12, so that the first limit block 322 is engaged with the first limit groove 12. At this time, the thrust spring 323 is compressed, and the second wall panel 2 is engaged with the first wall panel 1; when the rotating component 33 is rotated in the opposite direction, the movable plate 321 moves toward the middle under the elastic force of the thrust spring 323, so that the movable plate 321 returns to its initial position, and at the same time, the first limit block 322 slides out of the first limit groove 12, and the second wall panel 2 is not engaged with the first wall panel 1, that is, the second wall panel 2 can be separated from the first wall panel 1.

[0071] Specifically, if Figure 5As shown, the rotating assembly 33 includes a rotating member 331, a connecting rod 332, an elastic unit 333 and a knob 334. The rotating member 331 is in contact with the movable plate 321. The rotating member 331 is elliptical and suitable for driving the movable plate 321 to move; the connecting rod 332 is fixedly connected to the rotating member 331, and a sliding groove 3321 is provided inside the connecting rod 332; the elastic unit 333 is provided in the sliding groove 3321, and one end of the elastic unit 333 is connected to the inner wall of the sliding groove 3321; the knob 334 is connected to the other end of the elastic unit 333, and the knob 334 is suitable for driving the rotating member 331 to rotate. By rotating the knob 334, the knob 334 drives the connecting rod 332 to rotate, and the connecting rod 332 drives the rotating member 331 to rotate, and the rotating member 331 pushes the movable plate 321 to slide to both sides, so that the first limit block 322 is engaged with the first limit groove 12, and then the second wall panel 2 is engaged with the first wall panel 1. When the knob 334 is rotated in the opposite direction, that is, it is necessary to release the limit of the movable plate 321 by the rotating member 331, the movable plate 321 slides toward the middle under the elastic force of the thrust spring 323, the first limit block 322 slides out of the first limit groove 12, and the second wall panel 2 can be separated and removed from the first wall panel 1.

[0072] Furthermore, the elastic unit 333 includes a telescopic rod 3331, a slider 3332 and a tension spring 3333. The telescopic rod 3331 is arranged in the slide groove 3321, and one end is connected to the knob 334; the slider 3332 is connected to the other end of the telescopic rod 3331, and the slider 3332 is suitable for sliding in the slide groove 3321; one end of the tension spring 3333 is connected to the inner wall of the slide groove 3321, and the other end of the tension spring 3333 is connected to the slider 3332. When the knob 334 is pulled outward, that is, the limit on the rotation of the knob 334 needs to be released, the knob 334 drives the telescopic rod 3331 to move, and the telescopic rod 3331 drives the slider 3332 to move in the slide groove 3321, and the tension spring 3333 is in a stretched state; when the knob 334 is moved inward, that is, the rotation of the knob 334 needs to be limited, the slider 3332 moves inward under the action of the tension spring 3333, driving the telescopic rod 3331 to move inward until the knob 334 returns to the limited state. In addition, the slide groove 3321 can limit the slider 3332 to prevent the slider 3332 from escaping from the slide groove 3321.

[0073] Furthermore, the rotating assembly 33 further includes a limiting unit 335, which is disposed on the positioning block 31 and is adapted to limit the rotation of the rotating assembly 33, that is, the limiting unit 335 limits the rotation of the knob 334. In the embodiment of the present utility model, by providing the limiting unit 335, when the first limiting block 322 is inserted into the first limiting groove 12, the limiting unit 335 can limit the knob 334, preventing the knob 334 from being deflected by vibration, causing the first limiting block 322 to slide out of the first limiting groove 12, thereby separating the first wall panel 1 from the second wall panel 2, and causing the prefabricated building to be unstable.

[0074] Furthermore, the limiting unit 335 includes a second limiting groove 3351 and a second limiting block 3352. The second limiting groove 3351 is provided at one end of the positioning block 31 close to the knob 334; the second limiting block 3352 is provided at one end of the knob 334 close to the positioning block 31. The second limiting block 3352 is adapted to be inserted into the second limiting groove 3351 to limit the rotation of the rotating assembly 33. When it is necessary to release the rotation limit of the knob 334, the knob 334 is pulled outward to disengage the second limiting block 3352 from the second limiting groove 3351. At the same time, the slider 3332 and the telescopic rod 3331 slide outward in the sliding groove 3321. The knob 334 is then rotated to drive the rotating member 331 and the connecting rod 332 to rotate, so that the rotating member 331 releases the restriction on the movable plate 321, and then the movable plate 321 moves toward the middle under the action of the thrust spring 323. The first limit block 322 releases the limit on the first limit groove 12, and the second wall panel 2 is separated and removed from the first wall panel 1; when the knob 334 needs to be limited, the knob 334 is rotated to engage the first limit block 322 with the first limit groove 12, and at the same time, the second limit block 3352 is rotated to the second limit groove 3351. Under the action of the tension spring 3333, the second limit block 3352 is inserted into the second limit groove 3351 to limit the knob 334.

[0075] Furthermore, the connecting mechanism 3 further includes a guide assembly 34, which is disposed within the cavity of the positioning block 31 and is adapted to guide the movable assembly 32. In the embodiment of the present invention, the provision of the guide assembly 34 enables the movable assembly 32 to slide evenly and stably within the cavity of the positioning block 31, thereby preventing the movable plate 321 from tilting, which could cause the movable plate 321 to become stuck in its sliding motion.

[0076] Furthermore, the guide assembly 34 includes a guide groove 341 and a guide member 342. The guide groove 341 is provided on the inner wall of the positioning block 31; the guide member 342 is provided on the movable plate 321 and is adapted to slide within the guide groove 341. When the movable plate 321 moves, the movable plate 321 slides, driving the guide member 342 to slide within the guide groove 341, thereby preventing the movable plate 321 from deflecting during the sliding process.

[0077] Furthermore, the connection device of the prefabricated building wall panels also includes an entrance door 4, which is arranged on the second wall panel 2. The entrance door 4 is suitable for staff to enter the prefabricated building. In addition, in an embodiment of the present utility model, multiple second wall panels 2 are installed on the first wall panel 1, and another first wall panel 1 is installed on the top of the second wall panel 2, thereby enclosing them to form a prefabricated building.

[0078] The specific working process of the connection device of the assembled building wall panels provided by the utility model is as follows:

[0079] The first wall panel 1 is first placed in the preset installation position, and the positioning block 31 is inserted into the positioning groove 11. Then, the knob 334 is rotated. The knob 334 drives the connecting rod 332 to rotate. The connecting rod 332 drives the rotating member 331 to rotate. The rotating member 331 pushes the movable plate 321 to move to both sides. The movable plate 321 drives the first limiting block 322 to move, so that the first limiting block 322 is inserted into the first limiting groove 12, thereby clamping the first wall panel 1 and the second wall panel 2. At the same time, the second limiting block 3352 is inserted into the second limiting groove 3351 under the action of the tension spring 3333, limiting the rotation of the knob 334 to prevent the knob 334 from being deflected by vibration. Then, another first wall panel 1 is placed on the second wall panel 2, and the upper first wall panel 1 is clamped with the second wall panel 2 through the connecting mechanism 3, completing the connection between the first wall panel 1 and the second wall panel 2 and the installation of the prefabricated building.

[0080] When the first wall panel 1 and the second wall panel 2 need to be removed, the rotation restriction of the knob 334 needs to be released. By manually pulling the knob 334 outward, the knob 334 drives the telescopic rod 3331 to move outward, thereby driving the slider 3332 to move outward. At the same time, the tension spring 3333 is stretched until the slider 3332 abuts against the inner wall of the slide groove 3321. Then, the knob 334 is rotated in the opposite direction. The knob 334 drives the connecting rod 332 and the rotating member 331 to rotate, so that the rotating member 331 and the movable plate 332 are connected. 21 is separated, the movable plate 321 moves toward the middle under the action of the thrust spring 323, and the movable plate 321 drives the first limit block 322 to move, so that the first limit block 322 slides out of the first limit groove 12, and then separates the second wall panel 2 from the first wall panel 1, completing the disassembly of the first wall panel 1 and the second wall panel 2. In addition, during the sliding process of the movable plate 321, the movable plate 321 drives the guide member 342 to slide in the guide groove 341 to prevent the movable plate 321 from tilting and offsetting during the sliding process.

[0081] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A connection device for assembled building wall panels, characterized in that: include: A first wall panel (1) is placed horizontally on the installation surface, a plurality of positioning grooves (11) are provided on the first wall panel (1), and a first limiting groove (12) is provided in the positioning groove (11); A plurality of second wall panels (2) are vertically mounted on the first wall panel (1) in sequence, and the second wall panels (2) are detachably connected to the first wall panel (1); A connecting mechanism (3) is provided on the second wall panel (2); the connecting mechanism (3) is inserted into the positioning groove (11) and is engaged with the first limiting groove (12), so that the second wall panel (2) and the first wall panel (1) are detachably connected.

2. The connection device of prefabricated building wall panels according to claim 1, characterized in that: The connecting mechanism (3) comprises: A positioning block (31) is arranged in the positioning groove (11), a cavity is arranged in the positioning block (31), a through hole is arranged on the side of the positioning block (31), and the positioning block (31) is hollow; A moving component (32) is disposed in the cavity, and the moving component (32) passes through the through hole and is engaged with the first limiting groove (12); A rotating assembly (33) is connected to the moving assembly (32), and the rotating assembly (33) drives the moving assembly (32) to move, so that the moving assembly (32) is engaged with the first limiting groove (12); Under the action of the rotating assembly (33), the moving assembly (32) has a clamping state with the first wall panel (1) and a separation state with the first wall panel (1).

3. The connection device of prefabricated building wall panels according to claim 2, characterized in that: The moving assembly (32) comprises: a movable plate (321) disposed in the cavity, the movable plate (321) being connected to the rotating assembly (33), and the movable plate (321) being adapted to slide in the cavity; A first limiting block (322), one end of which is fixedly connected to the movable plate (321), and the other end of which passes through the through hole on the positioning block (31) and extends into the first limiting groove (12); Under the action of the rotating assembly (33), the first limiting block (322) slides in the first limiting groove (12), and the first limiting block (322) has a clamping state of extending into the first limiting groove (12) and a separation state of leaving the first limiting groove (12).

4. The connection device of prefabricated building wall panels according to claim 3, characterized in that: The moving assembly (32) further comprises: A thrust spring (323) is connected at one end to the movable plate (321) and at the other end to the inner wall of the cavity of the positioning block (31), and the first limiting block (322) is separated from the first limiting groove (12) by the thrust spring (323).

5. The connection device of prefabricated building wall panels according to claim 4, characterized in that: The rotating assembly (33) comprises: A rotating member (331) is in contact with the movable plate (321), the rotating member (331) is elliptical, and the rotating member (331) is suitable for driving the movable plate (321) to move; A connecting rod (332) is fixedly connected to the rotating member (331), and a sliding groove (3321) is provided inside the connecting rod (332); An elastic unit (333) is arranged in the slide groove (3321), and one end of the elastic unit (333) is connected to the inner wall of the slide groove (3321); The knob (334) is connected to the other end of the elastic unit (333), and the knob (334) is suitable for driving the rotating member (331) to rotate.

6. The connection device of prefabricated building wall panels according to claim 5, characterized in that: The elastic unit (333) comprises: A telescopic rod (3331) is disposed in the slide groove (3321) and one end of which is connected to the knob (334); a slider (3332) connected to the other end of the telescopic rod (3331), wherein the slider (3332) is adapted to slide in the slide groove (3321); A tension spring (3333) has one end connected to the inner wall of the slide groove (3321) and the other end connected to the slider (3332).

7. The connection device of prefabricated building wall panels according to claim 6, characterized in that: The rotating assembly (33) further comprises: A limiting unit (335) is provided on the positioning block (31), and the limiting unit (335) is suitable for limiting the rotation of the rotating assembly (33).

8. The connection device of prefabricated building wall panels according to claim 7, characterized in that: The limiting unit (335) includes: A second limiting groove (3351) is provided at one end of the positioning block (31) close to the knob (334); The second limiting block (3352) is arranged at one end of the knob (334) close to the positioning block (31), and the second limiting block (3352) is suitable for being inserted into the second limiting groove (3351) to limit the rotation of the rotating assembly (33).

9. The connection device of prefabricated building wall panels according to any one of claims 3 to 8, characterized in that: The connecting mechanism (3) further comprises: A guide assembly (34) is arranged in the cavity of the positioning block (31), and the guide assembly (34) is suitable for guiding the moving assembly (32).

10. The connection device of prefabricated building wall panels according to claim 9, characterized in that: The guide assembly (34) comprises: A guide groove (341) is provided on the inner wall of the positioning block (31); A guide member (342) is provided on the movable plate (321), and the guide member (342) is suitable for sliding in the guide groove (341).

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