A box-type house pressure-bearing sealing node structure

Abstract

The application relates to the technical field of box house construction, and discloses a box house pressure-bearing sealing joint structure used for sealing and fixing the connecting position of a wallboard of a box house, which comprises a top frame beam with a sealing part and a roof part, the sealing part is arranged on the lower side of the roof part, the sealing part is arranged on the outer side of the wallboard in the horizontal direction, the roof part is arranged above the wallboard, a support is arranged on the side of the wallboard close to a guide rail, the support is arranged on the upper side of one end of a supporting plate, the support is spaced apart from the top frame beam, the vertical plate and the sealing part are arranged on the two sides of the wallboard in a relative mode, the supporting plate is connected with the guide rail, a connecting piece penetrates the wallboard and is used for connecting the vertical plate and the sealing part so as to connect the top frame beam and the wallboard. Through the technical scheme, the problem that the wallboard of the box house is prone to cold bridge effect when being fixed in the prior art is solved.

Description

Technical Field

[0001] This invention relates to the field of container house construction technology, specifically to a pressure-bearing and sealing node structure for container houses. Background Technology

[0002] Container houses are a type of movable and reusable building product. They are also known as "modular container houses" or "shipping houses." Traditionally, container houses typically have the upper part of the wall panels directly connected to guide rails, and the lower part of the wall panels are connected to an integrated groove base to fix the wall panels in place.

[0003] The cold bridge effect refers to the phenomenon where water vapor is absorbed onto the wall surface at the corners of the exterior walls, the intersection of the interior and exterior walls, and the overlapping corners of the roof and the exterior walls. This can cause condensation on the exterior walls, resulting in "tears," "sweating," "mold," dampness, and mold growth in the house.

[0004] While existing technologies can fix the wall panels of container houses, this method of fixing the wall panels will cause the wall panels and guide rails to come into direct contact, resulting in heat conduction and a cold bridge effect. Summary of the Invention

[0005] This invention proposes a pressure-bearing and sealing node structure for container houses, which solves the problem of cold bridging effect that easily occurs when the wall panels of container houses are fixed in related technologies.

[0006] The technical solution of the present invention is as follows:

[0007] A pressure-bearing sealing joint structure for a prefabricated container house, used to seal and fix the connection points of the prefabricated container house wall panels, comprising:

[0008] The top frame beam has a sealing part and a roof part. The sealing part is located on the lower side of the roof part and on the outer side of the wall panel in the horizontal direction. The roof part is located on the upper side of the wall panel.

[0009] The bracket includes a vertical plate and a support plate. The vertical plate is disposed on the upper side of one end of the support plate. The bracket is disposed on the side of the wall panel near the guide rail. There is a gap between the bracket and the top frame beam. The vertical plate and the sealing part are disposed opposite to each other on both sides of the wall panel. The support plate is connected to the guide rail.

[0010] A connector, penetrating the wall panel, is used to connect the vertical plate and the sealing part, so as to connect the top frame beam and the wall panel.

[0011] Furthermore, the sealing portion includes:

[0012] The outer panel is connected to one side of the roof section;

[0013] An inner sealing plate is disposed on the outer plate and located between the outer plate and the wall panel, the inner sealing plate and the outer plate forming a sealed space;

[0014] The lower sealing plate is disposed at the lower end of the outer plate and located below the inner sealing plate.

[0015] Furthermore, the connector includes:

[0016] A locking nut is located within the sealed space;

[0017] The fixing bolt has a threaded portion, which passes through the vertical plate, the wall plate, and the inner sealing plate in sequence before entering the sealing space and connecting with the locking nut.

[0018] Furthermore, it also includes:

[0019] The first pressure strip is of several kinds, and the several first pressure strips are disposed on the side of the inner sealing plate opposite to the wall panel;

[0020] A first seal, comprising:

[0021] The first support plate is disposed between the wall panel and the inner sealing plate. The first support plate is in the shape of a zigzag line, and the zigzag line forms a plurality of pressing grooves. The threaded part passes through the first support plate.

[0022] Two first sealing strips are respectively disposed at the upper and lower ends of the first support plate. The first sealing strips are located between the sealing part and the outer side of the wall panel, and are used to seal and connect the sealing part and the wall panel. The upper first sealing strip contacts the upper side of the inner sealing plate, and the lower first sealing strip contacts the lower sealing plate. The inner sealing plate is located above the lower first sealing strip.

[0023] The first pressure strip abuts against the pressing groove.

[0024] Furthermore, it also includes:

[0025] The second seal has the same structure as the first seal. The second seal is disposed between the vertical plate and the wall plate so that the vertical plate and the wall plate are spaced apart. The threaded portion passes through the second seal.

[0026] Furthermore, the inner sealing plate has a connection hole and also includes:

[0027] A sleeve has a connecting part and a locking part that are connected together. The connecting part is connected to the first support plate of the first seal. The locking part passes through the connecting hole and enters the sealing space. The threaded part passes through the first support plate and then passes through the sleeve and enters the sealing space. The locking part has multiple extrusion arc plates along the circumference. The diameter of the locking part gradually decreases in the direction parallel to the axis of the sleeve, and the end with the larger diameter is located on the side away from the connecting hole. The locking nut is inserted into the locking part and can slide within the locking part. After the locking nut slides, the extrusion arc plates unfold outward within the sealing space.

[0028] Furthermore, it also includes:

[0029] A stop block is disposed on the inner sealing plate and located in the lower part of the sealing space. After the extrusion arc plate located below is unfolded, it abuts against the upper end of the stop block.

[0030] Furthermore, it also includes:

[0031] A purlin is provided at one end between the roof section and the top of the wall panel.

[0032] Furthermore, it also includes:

[0033] A long ground beam profile is located below the wall panel;

[0034] The first base plate has an outer baffle, a support plate and an inner baffle connected in sequence. The outer baffle abuts against the ground beam profile, the support plate is located between the lower end of the wall panel and the ground beam profile, the inner baffle abuts against the inner side of the wall panel, and the first base plate is snapped into the wall panel.

[0035] The second substrate has an upper baffle, a horizontal baffle, and a lower baffle connected in sequence. The upper baffle is inclined and its upper end abuts against the outer side of the wall panel. The lower baffle abuts against the outer side of the ground beam profile. There is a gap between the second substrate and the first substrate. The second substrate is connected to the wall panel.

[0036] Furthermore, it also includes:

[0037] The third sealing element has two parts, both of which have the same structure as the first sealing element. One third sealing element is disposed between the inner baffle and the inner side of the wall panel to seal the connection between the inner baffle and the inner side of the wall panel. The other third sealing element is disposed between the upper baffle and the outer side of the wall panel to seal the connection between the upper baffle and the outer side of the wall panel.

[0038] The beneficial effects of this invention are as follows:

[0039] 1. The connector penetrates the wall panel and fixes the sealing part and the bracket to both sides of the wall panel respectively, so that the wall panel, the top frame beam and the guide rail are firmly fixed, reducing the shaking of the wall panel.

[0040] 2. The two sides of the wall panel do not directly contact the bracket or the top frame beam, which reduces heat conduction and lowers the cold bridge effect. Attached Figure Description

[0041] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0042] Figure 1 This is a schematic diagram of the main structure of the top frame beam, bracket and wall panel during assembly of the present invention;

[0043] Figure 2 This is a cross-sectional structural diagram of the top frame beam, bracket and wall panel assembly of the present invention;

[0044] Figure 3 For the present invention Figure 2 A magnified view of a portion of point I in the middle;

[0045] Figure 4 This is a three-dimensional structural diagram of the sleeve, the first support plate, and the first sealing strip of the present invention during assembly.

[0046] Figure 5 This is a front view structural diagram of the assembly of the ground beam profile, the first substrate, the second substrate, and the wall panel of the present invention.

[0047] In the diagram, 1 is the wall panel; 2 is the top frame beam; 201 is the sealing part; 2011 is the outer panel; 2012 is the inner sealing plate; 2013 is the lower sealing plate; 2014 is the sealing space; 202 is the roof part; 3 is the bracket; 301 is the vertical plate; 302 is the support plate; 4 is the connector; 401 is the lock nut; 402 is the fixing bolt; 4021 is the threaded part; 5 is the first pressure strip; 6 is the first sealing element; 601 is the first support pressure plate. 6011, Pressing groove; 602, First sealing strip; 7, Second sealing element; 9, Sleeve; 901, Connecting part; 9021, Extrusion arc plate; 10, Stop block; 11, Purlin; 12, Ground long beam profile; 13, First base plate; 131, Outer baffle; 132, Support plate; 133, Inner baffle; 14, Second base plate; 141, Upper baffle; 142, Horizontal baffle; 143, Lower baffle; 15, Third sealing element. Detailed Implementation

[0048] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0049] like Figures 1-5 As shown, this embodiment proposes a pressure-bearing sealing node structure for sealing and fixing the connection position of the wall panel 1 of the box-type house. It includes: a top frame beam 2, having a sealing part 201 and a roof part 202. The sealing part 201 is located on the lower side of the roof part 202 and on the outer side of the wall panel 1 in the horizontal direction. The roof part 202 is located above the wall panel 1; a bracket 3, including a vertical plate 301 and a support plate 302. The vertical plate 301 is located on the upper side of one end of the support plate 302. The bracket 3 is located on the side of the wall panel 1 near the guide rail. There is a gap between the bracket 3 and the top frame beam 2. The vertical plate 301 and the sealing part 201 are arranged opposite to each other on both sides of the wall panel 1. The support plate 302 is connected to the guide rail; a connector 4, penetrating the wall panel 1, is used to connect the vertical plate 301 and the sealing part 201 so that the top frame beam 2 and the wall panel 1 are connected.

[0050] In this embodiment, the connection points between the wall panel 1 and the guide rail, the connection points between the wall panel 1 and the top frame beam 2, and the connection points between the wall panel 1 and the ground long beam profile 12 are collectively referred to as the connection positions of the box-type house wall panel 1. The sealing part 201 is located on the left side of the wall panel 1; the bracket 3 is welded together from a longitudinal vertical plate 301 and a transverse support plate 302. The operator first needs to align the wall panel 1 and the top frame beam 2 so that the roof part 202 is above the wall panel 1 and the sealing part 201 is on the left side of the wall panel 1, with a gap between the sealing part 201 and the wall panel 1. Then, align the bracket 3 and the wall panel 1. At this time, the sealing part 201, the wall panel 1, and the vertical plate 301 correspond in sequence. Finally, use the appropriate tool to connect the vertical plate 301 and the sealing part 201 to connect the top frame beam 2 and the wall panel 1. It can be directly fixed with pins to ensure that the container house wall panel 1 is stably fixed. At the same time, the left and right sides of the wall panel 1 do not directly contact the top frame beam 2 and the bracket 3, and there is a certain gap, which reduces the heat conduction of the upper part of the wall panel and effectively weakens the cold bridge effect.

[0051] Furthermore, the sealing part 201 includes: an outer plate 2011 connected to one side of the roof part 202; an inner sealing plate 2012 disposed on the outer plate 2011 and located between the outer plate 2011 and the wall panel 1, the inner sealing plate 2012 and the outer plate 2011 forming a sealing space 2014; and a lower sealing plate 2013 disposed at the lower end of the outer plate 2011 and located below the inner sealing plate 2012.

[0052] In this embodiment, both the inner sealing plate 2012 and the lower sealing plate 2013 have a U-shaped structure. The U-shaped opening of the inner sealing plate 2012 faces the outer plate 2011, forming a sealing space 2014. The U-shaped opening of the lower sealing plate 2013 faces the upper side of the wall panel 1. The sealing space 2014 can block heat conduction, has a sealing effect, and reduces the cold bridge effect.

[0053] Furthermore, the connector 4 includes: a locking nut 401 located within the sealed space 2014; and a fixing bolt 402 having a threaded portion 4021, which passes through the vertical plate 301, the wall plate 1, and the inner sealing plate 2012 in sequence before entering the sealed space 2014 and connecting with the locking nut 401.

[0054] In this embodiment, the operator needs to make the threaded part 4021 on the fixing bolt 402 pass through the vertical plate 301, the wall panel 1, and the inner sealing plate 2012 in sequence and enter the sealing space 2014. Then, the locking nut 401 and the fixing bolt 402 are threaded together, so that the sealing part 201 of the wall panel 1 and the top frame beam 2 and the vertical plate 301 of the bracket 3 are connected together, which ensures the stability of the container house when it is fixed and enhances the pressure-bearing and sealing performance of the container house wall panel.

[0055] Furthermore, it also includes: a plurality of first pressure strips 5, which are disposed on the side of the inner sealing plate 2012 opposite to the wall panel 1; a first sealing element 6, which includes: a first supporting pressure plate 601, which is disposed between the wall panel 1 and the inner sealing plate 2012, the first supporting pressure plate 601 being zigzag-shaped, forming a plurality of pressing grooves 6011, and a threaded portion 4021 penetrating the first supporting pressure plate 601; two first sealing strips 602, which are respectively disposed at the upper and lower ends of the first supporting pressure plate 601, the first sealing strips 602 being located between the sealing part 201 and the outer side of the wall panel 1, for sealing and connecting the sealing part 201 and the wall panel 1, the upper first sealing strip 602 contacting the upper side of the inner sealing plate 2012, the lower first sealing strip 602 contacting the lower sealing plate 2013, the inner sealing plate 2012 being located above the lower first sealing strip 602; and the first pressure strips 5 abutting against the pressing grooves 6011.

[0056] In this embodiment, the first pressure strip 5 has a pressing part, which has a semi-cylindrical structure; the first support pressure plate 601 has extensibility; the pressing groove 6011 has a triangular structure; when the pressing part on the first pressure strip 5 presses the pressing groove 6011 on the first support pressure plate 601, the first support pressure plate 601 extends vertically along the height direction, causing the first sealing strip 602 on the upper side to be pushed upward and the first sealing strip 602 on the lower side to be pushed downward, thus connecting the inner sealing plate 2012 and the lower sealing plate 2013. The joints are sealed to enhance the sealing performance of the container house. The first support plate 601 also serves to restrict the movement of the two first sealing strips 602. At the same time, the first support plate 601 has a positioning function for the first sealing strips 602 on the upper and lower sides, so that the upper end of the upper first sealing strip 602 is flush with the upper end of the wall panel, and the upper end of the lower first sealing strip 602 is located at the upper end of the connection between the inner sealing plate 2012 and the lower sealing plate 2013, thus ensuring the sealing of the outer side of the wall panel 1 and acting as a thermal break.

[0057] Furthermore, it also includes: a second seal 7, which has the same structure as the first seal 6. The second seal 7 is disposed between the vertical plate 301 and the wall plate 1 so that the vertical plate 301 and the wall plate 1 are spaced apart, and the threaded portion 4021 passes through the second seal 7.

[0058] In this embodiment, a first pressure strip 5 can be added, with several first pressure strips 5 disposed on the opposite side of the vertical plate 301 and the wall panel 1. When the first pressure strip 5 presses against the second sealing member 7, the first sealing strip 602 extends up and down along the height direction, so that the upper first sealing strip 602 better seals the connection between the vertical plate 301 and the wall panel 1, and the lower first sealing strip 602 better seals the sealing point between the support plate 302 and the wall panel 1, thereby enhancing the sealing performance inside the container house. At the same time, the second sealing member 7 and the first sealing member 6 have the same structure, saving costs. The threaded part 4021 passes through the vertical plate 301, the second sealing member 7, the wall panel 1, and the inner sealing plate 2012 in sequence, so that the wall panel 1 is connected to the guide rail and the top frame beam 2 respectively, reducing the shaking of the wall panel 1 after installation, and also allowing the upper and lower first sealing strips 602 to better perform the sealing function, enhancing the sealing effect and effectively blocking the cold bridge effect.

[0059] Furthermore, the inner sealing plate 2012 has a connecting hole and also includes a sleeve 9, which has a connecting part 901 and a locking part connected in communication. The connecting part 901 is connected to the first support plate 601 of the first sealing member 6. The locking part passes through the connecting hole and enters the sealing space 2014. The threaded part 4021 passes through the first support plate 601 and then passes through the sleeve 9 to enter the sealing space 2014. The locking part has multiple extrusion arc plates 9021 along the annular direction. The diameter of the locking part gradually decreases in the direction parallel to the axis of the sleeve 9, and the end with the larger diameter is located on the side away from the connecting hole. The locking nut 401 is inserted into the locking part and can slide in the locking part. After the locking nut 401 slides, the extrusion arc plates 9021 unfold outward in the sealing space 2014.

[0060] In this embodiment, the diameter of the connecting hole is larger than the maximum diameter of the sleeve 9, which facilitates assembly and construction by the operator and improves the operator's work efficiency. When the threaded portion 4021 on the fixing bolt 402 passes through the first support pressure plate 601 and then passes through the inner sealing space 2014 inside the sleeve 9, the operator can drive the locking nut 401 to make the locking nut 401 and the fixing bolt 402 threadedly connected. At this time, the locking nut 401 slides to the right on the threaded portion 4021, and the locking nut 401 opens up multiple extrusion arc plates 9021. After the multiple extrusion arc plates 9021 are opened, each extrusion arc plate 9021 abuts against the inner wall of the connecting hole. At this time, the wall panel 1, the top frame beam 2, and the bracket 3 are more firmly fixed, reducing the shaking of the box-type house wall panel 1. The locking nut 401 is easy and quick to install, and the locking nut 401 and the fixing bolt 402 are accurately aligned, reducing the operator's working time and making the installation more precise.

[0061] Furthermore, it also includes: a stop 10, which is disposed on the inner sealing plate 2012 and located in the lower part of the sealing space 2014, and the extrusion arc plate 9021 located below it abuts against the upper end of the stop 10 after unfolding.

[0062] In this embodiment, after the multiple extrusion arc plates 9021 are opened by the locking nut 401, the lower extrusion arc plate 9021 abuts against the upper end of the stop block 10. At this time, the locking nut 401 can continue to slide to the right until the extrusion arc plate 9021 abuts against the inner wall of the connecting hole, at which point the sliding stops. During this process, the lower extrusion arc plate 9021 will press down on the stop block 10, causing the top frame beam 2 to press down on the wall panel 1, making the top frame beam 2 and the wall panel 1 more stable and better sealed. At the same time, the fixing bolt 402 is subjected to a biased force, which helps to prevent the fixing bolt 402 from loosening and improves stability.

[0063] Furthermore, it also includes: a purlin 11, one end of which is disposed between the roof section 202 and the top of the wall panel 1.

[0064] In this embodiment, the purlin 11 is located between the roof portion 202 and the top of the wall panel 1. The purlin 11 supports the top of the roof portion 202 and the top of the wall panel 1, making the wall panel 1 more stable. At the same time, when the lower extrusion arc plate 9021 presses down on the stop block 10, the roof portion 202 will press down on the purlin 11, which will generate downward pressure between the purlin 11 and the top of the wall panel 1, making the roof portion 202, purlin 11, and wall panel 1 more stable and better sealed.

[0065] Furthermore, it also includes: a ground beam profile 12 located below the wall panel 1; a first base plate 13 having an outer baffle 131, a support plate 132, and an inner baffle 133 connected in sequence, the outer baffle 131 abutting against the ground beam profile 12, the support plate 132 being located between the lower end of the wall panel 1 and the ground beam profile 12, the inner baffle 133 abutting against the inner side of the wall panel 1, and the first base plate 13 being snapped into the wall panel 1; a second base plate 14 having an upper baffle 141, a horizontal baffle 142, and a lower baffle 143 connected in sequence, the upper baffle 141 being inclined and its upper end abutting against the outer side of the wall panel 1, the lower baffle 143 abutting against the outer side of the ground beam profile 12, the second base plate 14 being spaced from the first base plate 13, and the second base plate 14 being connected to the wall panel 1.

[0066] In this embodiment, the operator first places the first substrate 13 on the upper end of the ground beam profile 12. At this time, the bottom of the support plate 132 is in contact with the top of the ground beam profile 12, and the outer baffle 131 abuts against the ground beam profile 12. Then, the wall panel 1 is placed on the first substrate 13. At this time, the bottom of the wall panel 1 abuts against the upper part of the support plate 132, and the right side of the wall panel 1 abuts against the inner baffle 133. Next, the operator installs the second substrate 14 on the left side of the ground beam profile 12. At this time, the upper baffle 141 abuts against the left side of the wall panel 1, the lower baffle 143 abuts against the left side of the ground beam profile 12, and the horizontal baffle 142 contacts the top of the ground beam profile 12. Finally, the operator can use pins and rivets to rivet the second substrate 14 and the left side of the wall panel 1 to fix the first substrate 13, the second substrate 14, and the wall panel 1 firmly. Additional features can be added: the upper and lower sides of the support plate 132 and the left side of the inner baffle 133 are friction surfaces to increase the friction between the first substrate 13, the ground beam profile 12, and the wall panel 1, preventing the first substrate 13 from detaching from the wall panel 1 and the ground beam profile 12. The right side of the upper baffle 141 and the bottom of the horizontal baffle 142 are also friction surfaces to prevent the second substrate 14 from detaching from the ground beam profile 12, ensuring stable sealing. The separate design of the first substrate 13 and the second substrate 14 can effectively reduce the generation of cold bridge effect and avoid corrosion of the wall panel 1 under the action of cold bridge effect.

[0067] Furthermore, it also includes: a third seal 15, having two of them, both of which have the same structure as the first seal 6. One third seal 15 is disposed between the inner baffle 133 and the inner side of the wall panel 1, for sealing the connection between the inner baffle 133 and the inner side of the wall panel 1, and the other third seal 15 is disposed between the upper baffle 141 and the outer side of the wall panel 1, for sealing the connection between the upper baffle 141 and the outer side of the wall panel 1.

[0068] In this embodiment, the third seal 15 has the same structure as the first seal 6 and the second seal 7, which reduces production costs. The third seal 15 can enhance the sealing performance of the inner baffle 133 and the inner side of the wall panel 1, and the upper baffle 141 and the outer side of the wall panel 1, reducing the occurrence of cold bridge effect.

[0069] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pressure-bearing and sealing node structure for a prefabricated box house, used to seal and fix the connection position of the prefabricated box house wall panel (1), characterized in that, include: The top frame beam (2) has a sealing part (201) and a roof part (202). The sealing part (201) is located on the lower side of the roof part (202). The sealing part (201) is located on the outer side of the wall panel (1) in the horizontal direction. The roof part (202) is located above the wall panel (1). The bracket (3) includes a vertical plate (301) and a support plate (302). The vertical plate (301) is disposed on the upper side of one end of the support plate (302). The bracket (3) is disposed on the side of the wall panel (1) near the guide rail. The bracket (3) has a gap with the top frame beam (2). The vertical plate (301) and the sealing part (201) are disposed opposite to each other on both sides of the wall panel (1). The support plate (302) is connected to the guide rail. A connector (4) penetrates the wall panel (1) and is used to connect the vertical plate (301) and the sealing part (201) so that the top frame beam (2) and the wall panel (1) are connected. The sealing part (201) includes: The outer panel (2011) is connected to one side of the roof section (202); An inner sealing plate (2012) is disposed on the outer plate (2011) and located between the outer plate (2011) and the wall panel (1), wherein the inner sealing plate (2012) and the outer plate (2011) form a sealed space (2014); The lower sealing plate (2013) is disposed at the lower end of the outer plate (2011) and located below the inner sealing plate (2012); The connector (4) includes: A locking nut (401) is located within the sealed space (2014); The fixing bolt (402) has a threaded portion (4021), which passes through the vertical plate (301), the wall plate (1), and the inner sealing plate (2012) in sequence, enters the sealing space (2014), and is connected to the locking nut (401). A plurality of first pressure strips (5) are provided on the side of the inner sealing plate (2012) opposite to the wall panel (1); A first seal (6) comprising: The first support plate (601) is disposed between the wall panel (1) and the inner sealing plate (2012). The first support plate (601) is in the shape of a zigzag line, and the zigzag line forms a plurality of pressing grooves (6011). The threaded part (4021) passes through the first support plate (601). Two first sealing strips (602) are respectively disposed at the upper and lower ends of the first support plate (601). The first sealing strips (602) are located between the outer side of the sealing part (201) and the wall panel (1) for sealing connection of the sealing part (201) and the wall panel (1). The upper first sealing strip (602) contacts the upper side of the inner sealing plate (2012), and the lower first sealing strip (602) contacts the lower sealing plate (2013). The inner sealing plate (2012) is located above the lower first sealing strip (602). The first pressure strip (5) abuts against the pressing groove (6011); The inner sealing plate (2012) has a connection hole and further includes: The sleeve (9) has a connecting part (901) and a locking part that are connected together. The connecting part (901) is connected to the first support plate (601) of the first seal (6). The locking part passes through the connecting hole and enters the sealing space (2014). The threaded part (4021) passes through the first support plate (601) and then passes through the sleeve (9) and enters the sealing space (2014). The locking part has a plurality of extrusion arc plates (9021) along the circumference. The diameter of the locking part gradually decreases in the direction parallel to the axis of the sleeve (9), and the end with the larger diameter is located on the side away from the connecting hole. The locking nut (401) is inserted into the locking part and can slide in the locking part. After the locking nut (401) slides, the extrusion arc plates (9021) unfold outward in the sealing space (2014).

2. The pressure-bearing and sealing node structure of a prefabricated box house according to claim 1, characterized in that, Also includes: The second sealing element (7) has the same structure as the first sealing element (6). The second sealing element (7) is disposed between the vertical plate (301) and the wall plate (1) so that the vertical plate (301) and the wall plate (1) are spaced apart. The threaded portion (4021) passes through the second sealing element (7).

3. The pressure-bearing and sealing node structure of a prefabricated box house according to claim 1, characterized in that, Also includes: The stop block (10) is disposed on the inner sealing plate (2012) and located in the lower part of the sealing space (2014). After the extrusion arc plate (9021) located below is unfolded, it abuts against the upper end of the stop block (10).

4. The pressure-bearing and sealing node structure of a prefabricated box house according to claim 1, characterized in that, Also includes: A purlin (11) is provided at one end between the roof section (202) and the top of the wall panel (1).

5. The pressure-bearing and sealing node structure of a prefabricated box house according to claim 3, characterized in that, Also includes: Ground beam profile (12) is located below the wall panel (1); The first substrate (13) has an outer baffle (131), a support plate (132) and an inner baffle (133) connected in sequence. The outer baffle (131) abuts against the ground beam profile (12). The support plate (132) is located between the lower end of the wall panel (1) and the ground beam profile (12). The inner baffle (133) abuts against the inner side of the wall panel (1). The first substrate (13) is snapped into the wall panel (1). The second substrate (14) has an upper baffle (141), a horizontal baffle (142) and a lower baffle (143) connected in sequence. The upper baffle (141) is inclined and its upper end abuts against the outer side of the wall panel (1). The lower baffle (143) abuts against the outer side of the ground beam profile (12). There is a gap between the second substrate (14) and the first substrate (13). The second substrate (14) is connected to the wall panel (1).

6. The pressure-bearing and sealing node structure of a prefabricated box house according to claim 5, characterized in that, Also includes: There are two third seals (15), both of which have the same structure as the first seal (6). One third seal (15) is disposed between the inner baffle (133) and the inner side of the wall panel (1) for sealing connection between the inner baffle (133) and the inner side of the wall panel (1). The other third seal (15) is disposed between the upper baffle (141) and the outer side of the wall panel (1) for sealing connection between the upper baffle (141) and the outer side of the wall panel (1).

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