A solar outdoor controller

Abstract

The present invention belongs to the technical field of solar controllers, and particularly relates to a solar outdoor controller, including: an upper cover body; a solar panel, which is arranged on the outer end face of the upper cover body; a lower cover body, which is connected to the upper cover body, and a control circuit and a storage battery are arranged between the upper cover body and the lower cover body; a dry battery chamber, a battery cavity is formed by the lower cover body concave into the upper cover body; a battery cover, a battery cover is buckled on the dry battery chamber, and a sealing piece is arranged on the battery cover; a quick-release connection component, a quick-release connection component is arranged at the connection between the upper cover body and the lower cover body; the setting of the battery slot is used to place dry batteries, which can provide electrical energy for electrical components when the electrical energy stored in the storage battery is insufficient; and the setting of the quick-release connection component can facilitate the assembly and maintenance of the overall controller and can ensure the sealing performance at the connection between the upper cover body and the lower cover body.

Description

Technical Field

[0001] The present invention belongs to the technical field of solar controllers, and particularly relates to a solar outdoor controller. Background Art

[0002] A solar controller is an automatic control device used in a solar power generation system to control the charging of a storage battery by a solar panel and the power supply of the storage battery to a load of a solar inverter. It stipulates and controls the charging and discharging conditions of the storage battery, and controls the power output of the storage battery to the load according to the power demand of the load, and is the core control part of the entire photovoltaic power supply system.

[0003] Nowadays, solar controllers have also been widely used in decorative lamps. Existing solar controllers for decorative lamps usually only include a circuit board, a storage battery, and a solar panel. However, in many cases, solar controllers need to be used in an outdoor environment with short sunlight hours. In an environment with short sunlight or rainy days, the electric energy of the storage battery is exhausted and cannot be replenished, thus limiting the scope of use of solar power supply; at the same time, it is easy to face problems such as internal water ingress when used outdoors. Summary of the Invention

[0004] The purpose of the present invention is to provide a solar outdoor controller that is simple in structure, easy to maintain, and sealed and waterproof for the above-mentioned existing technical problems.

[0005] In view of this, the present invention provides a solar outdoor controller, including:

[0006] An upper cover body;

[0007] A solar panel, which is arranged on the outer end face of the upper cover body;

[0008] A lower cover body, which is connected to the upper cover body, and a control circuit and a storage battery are arranged between the upper cover body and the lower cover body;

[0009] A dry battery chamber, a dry battery cavity is formed by the lower cover body concave into the upper cover body;

[0010] A battery cover, a battery cover is buckled on the dry battery chamber, and a sealing sheet is arranged on the battery cover;

[0011] A quick-release connection assembly, a quick-release connection assembly is arranged at the connection part of the upper cover body and the lower cover body.

[0012] In the above technical solution, further, the quick-release connection assembly includes:

[0013] An outer quick-release fastening member, which is fastened at the connection part of the upper cover body and the lower cover body;

[0014] An inner sealing component is arranged on the inner side of the outer quick-release fastener;

[0015] External compression adjustment pieces, a plurality of external compression adjustment pieces are arranged on the outer side of the external quick-release fastener and abut against the internal sealing assembly;

[0016] The cross-section of the outer quick-release fastener is a shaped frame structure, and a broken portion is formed on the quick-release fastener, and thickening adjustment blocks are arranged on both sides of the broken portion, and the two thickening adjustment blocks are adjustably connected by bolts; and a protruding outer buckling edge is formed at the connection between the upper cover body and the lower cover body, the outer quick-release fastener is buckled on the two outer buckling edges, and the inner sealing component is abutted against the connection between the two outer buckling edges.

[0017] In the above technical solution, further, the inner sealing component includes:

[0018] An edge seal is arranged outside the two outer buckled edges and covers the connection between the two outer buckled edges;

[0019] The seals include:

[0020] An outer wrapping portion, the outer wrapping portion wraps around the two outer buckling edges;

[0021] End reinforcement parts are arranged on both sides of the outer enclosure part and extend toward the root of the outward buckling edge respectively.

[0022] In the present technical solution, the edge seal is arranged outside the two outer buckling edges and covers the connection between the outer buckling edges, so as to better ensure the sealing effect of the edge seal; the cross-section of the outer enclosure portion is convex and is in contact with the inner wall of the outer quick-release buckle, so as to ensure the sealing of the connection between the edge seal and the outer buckling edge and the sealing of the connection between the two outer buckling edges; and the arrangement of the end reinforcement portion can improve the sealing of the edge seal at the root of the outer buckling edge, so as to achieve the effect of internal and external double sealing, the outer seal is the seal of the connection between the outer buckling edge and the upper cover body or the lower cover body, and the inner seal is the seal of the connection between the two outer buckling edges.

[0023] The beneficial effects of the present invention are:

[0024] 1. The dry battery room is used to house dry batteries, which can provide power to electrical components when the power stored in the battery is insufficient;

[0025] 2. The quick-release connection assembly facilitates the assembly and maintenance of the controller as a whole and ensures the sealing of the connection between the upper cover and the lower cover;

[0026] 3. The inner sealing component is located inside the outer quick-release fastener and abuts against the connection between the two outer fastening edges, thereby ensuring the sealing of the connection between the upper cover body and the lower cover body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural view of the first perspective of the present invention;

[0028] Figure 2 is a schematic structural view of the second perspective of the present invention;

[0029] Figure 3 is a schematic structural view of the internal pressure component in the present invention;

[0030] Figure 4 is a schematic structural view of the first embodiment of the quick-release connection component in the present invention;

[0031] Figure 5 is a schematic structural view of the second embodiment of the quick-release connection component in the present invention;

[0032] Figure 6 is a schematic structural view of the third embodiment of the quick-release connection component in the present invention;

[0033] Figure 7 is a schematic structural view of the fourth embodiment of the quick-release connection component in the present invention;

[0034] Figure 8 is a schematic structural view of the fifth embodiment of the quick-release connection component in the present invention;

[0035] Figure 9 is a schematic structural view of the sixth embodiment of the quick-release connection component in the present invention;

[0036] Figure 10 is a schematic structural view of the seventh embodiment of the quick-release connection component in the present invention;

[0037] The markings in the figure are indicated as: 1 - upper cover body, 2 - solar panel, 3 - lower cover body, 4 - quick-release fastening member, 5 - battery cover, 6 - thick adjustment block, 7 - outer fastening edge, 8 - outer enclosing portion, 9 - end strengthening portion, 10 - fastening groove, 11 - strengthening ring body, 12 - pressure adjustment groove, 13 - strengthening ring, 14 - outer pressure-receiving portion, 15 - pressure bladder, 16 - outer connection block, 17 - inner pressing block, 18 - outer adjustment rod, 19 - middle receiving arm, 20 - side receiving arm, 21 - abutting piece, 22 - receiving portion, 23 - limiting block. Detailed Embodiments

[0038] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope protected by the present application.

[0039] Embodiment 1:

[0040] As Figure 1 and 3 shown in FIG. - 10: This embodiment provides a solar outdoor controller, comprising:

[0041] Upper cover body 1;

[0042] Solar panel 2, which is disposed on the outer end face of the upper cover body 1;

[0043] Lower cover body 3, which is connected to the upper cover body 1 and forms a receiving chamber therebetween, and a control circuit and a storage battery are disposed in the receiving chamber;

[0044] Dry battery chamber, a battery cavity is formed by the lower cover body 3 concave into the upper cover body 1;

[0045] Battery cover 5, a battery cover 5 is buckled on the dry battery chamber, and a sealing piece is disposed on the battery cover 5;

[0046] Quick-release connection assembly, a quick-release connection assembly is disposed at the connection between the upper cover body 1 and the lower cover body 3.

[0047] In this technical solution, the control circuit includes a circuit board, an inverter, a chip, a communication module, a detection module, a positioning module and other components; after the solar panel 2 absorbs solar energy, it is converted into electrical energy through components such as an inverter and stored in the storage battery; and the dry battery chamber is used for placing dry batteries, and the dry batteries are preferably No. 5 or No. 8; and the power supply mode of this controller is battery power supply or dry battery power supply. When there is sufficient electrical energy in the storage battery, it is powered by the storage battery. When the electrical energy in the storage battery is insufficient, it is powered by the dry battery; this controller can be used to supply power to outdoor colored lights or other decorative lamps. The communication module is used for communication connection with a host computer (intelligent devices such as a computer or a mobile phone), the detection module includes voltage detection components for detecting dry batteries and storage batteries and a detection component for detecting the humidity inside the controller. When the voltage detection module detects that the voltage of the dry battery is insufficient, it will send a message to the host computer through the communication module box so that maintenance personnel can replace the dry battery, and the positioning module is used to locate the controller, so as to facilitate maintenance personnel to accurately find the location of the controller. The humidity detection component is used to detect the humidity inside the controller. When the humidity is greater than the threshold value, an alarm message will be sent to the host computer through the communication module. The quick-release connection assembly is used to connect and fix the upper cover body 1 and the lower cover body 3. The general quick-release connection assembly replaces traditional fixing methods such as bolts, which can facilitate the overall assembly and maintenance of the controller and ensure the sealing performance at the connection between the upper cover body 1 and the lower cover body 3.

[0048] Embodiment 2:

[0049] As Figure 1 and 3-10: This embodiment provides a solar outdoor controller, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0050] The quick-release connection kit includes:

[0051] An external quick-release fastener 4, which is fastened at the connection between the upper cover 1 and the lower cover 3;

[0052] An inner sealing component is provided on the inner side of the outer quick-release fastener 4 and contacts the connection between the upper cover body 1 and the lower cover body 3;

[0053] External compression adjustment pieces, a plurality of external compression adjustment pieces are arranged on the outer side of the external quick-release fastener 4 and abut against the internal sealing assembly;

[0054] The cross-section of the outer quick-release fastener 4 is a shaped frame structure, and a broken portion is formed on the outer quick-release fastener 4, and thickening adjustment blocks 6 are arranged on both sides of the broken portion, and the two thickening adjustment blocks 6 are adjustably connected by bolts; and a protruding outer buckling edge 7 is formed on the connection between the upper cover body 1 and the lower cover body 3, and the outer quick-release fastener 4 is buckled on the two outer buckling edges 7, and the inner sealing component is against the connection between the two outer buckling edges 7.

[0055] In the technical solution, the outer quick-release fastener 4 is made of PE or elastic alloy, etc., and a threaded connection hole is integrally formed in the thickened adjustment block 6. During installation, the two sides of the shaped quick-release fastener 4 are respectively clamped on the outer sides of the outer fastening edges 7 on the upper cover body 1 and the lower cover body 3, and then the two thickened adjustment blocks 6 are connected by bolts, thereby completing the installation of the outer quick-release fastener 4 and the connection and fixation of the upper cover body 1 and the lower cover body 3. The inner sealing component is located in the outer quick-release fastener 4 and abuts against the connection of the two outer fastening edges 7, thereby ensuring the sealing of the connection between the upper cover body 1 and the lower cover body 3. The outer compression adjustment piece is used to adjust the fit between the inner sealing component and the outer fastening edge 7, thereby better ensuring the sealing effect of the inner sealing component. The outer compression adjustment piece can be a bolt with a soft head.

[0056] Embodiment 3:

[0057] like Figures 3 - 10 As shown: This embodiment provides a solar outdoor controller, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0058] The inner seal assembly includes:

[0059] An edge seal, which is arranged outside the two outer buckling edges 7 and covers the connection between the two outer buckling edges 7;

[0060] The seals include:

[0061] An outer enclosing portion 8, the outer enclosing portion 8 is enclosed outside the two outer buckling edges 7;

[0062] End reinforcement parts 9 are provided on both sides of the outer enclosure part 8 and extend toward the root of the outward buckling edge 7 respectively.

[0063] In the present technical solution, the edge seal is arranged outside the two outer buckling edges 7 and covers the connection between the outer buckling edges 7, so as to better ensure the sealing effect of the edge seal; the cross-section of the outer enveloping portion 8 is shaped and fits with the inner wall of the outer quick-release buckle 4, so as to ensure the sealing of the connection between the edge seal and the outer buckling edge 7 and the sealing of the connection between the two outer buckling edges 7; and the arrangement of the end reinforcement portion 9 can improve the sealing of the edge seal at the root of the outer buckling edge 7, so as to achieve the effect of internal and external double sealing, the outer seal is the seal of the connection between the outer buckling edge 7 and the upper cover body 1 or the lower cover body 3, and the inner seal is the seal of the connection between the two outer buckling edges 7.

[0064] Embodiment 4:

[0065] like Figure 5 , 7 As shown in 10: This embodiment provides a solar outdoor controller, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0066] The inner seal assembly also includes:

[0067] Along the reinforcing member, a buckling groove 10 is arranged at the connection of the two outer buckling edges 7, and an along reinforcing member is arranged in the buckling groove 10, and the along reinforcing member is arranged on the inner side of the along sealing member and in sealing contact with the connection of the two outer buckling edges 7;

[0068] The reinforcements include:

[0069] The reinforcing ring body 11 has an elliptical cross section and is respectively in contact with the inner wall of the buckling groove 10 and the sealing member, and the reinforcing ring body 11 abuts against the outer quick-release buckling member 4;

[0070] The pressure regulating groove 12 is provided on both sides of the reinforcing ring body 11, wherein the pressure regulating groove 12 on one side is connected to the connection between the two outer buckling edges 7, and the pressure regulating groove 12 on the other side is against the inner side of the seal, and the cross-section of the pressure regulating groove 12 is an isosceles trapezoid that is wide inside and narrow outside.

[0071] In this technical solution, the arrangement of the reinforcing member can further seal the connection of the two outer fastening edges 7 within the inner sealing assembly; the reinforcing ring body 11 is elliptical, and the two ends of the major diameter are respectively abutted against the upper and lower sides of the fastening groove 10, and the two ends of the minor diameter are respectively abutted against the inner sealing assembly and the inner wall of the fastening groove 10. The pressure adjustment grooves 12 are arranged at both ends of the reinforcing ring body 11 in the direction of the minor diameter; the pressure adjustment grooves 12 are connected to the connection of the outer fastening edge 7, so that under the extrusion of the inner sealing assembly, it is ensured that the parts on both sides of the pressure adjustment groove 12 can better abut against the outer fastening edges 7 on both sides; the pressure adjustment grooves 12 are in contact with the inner sealing assembly and can further ensure the sealing performance of the connection between the reinforcing member and it under the extrusion of the inner sealing assembly.

[0072] Embodiment 5:

[0073] As Figure 6 、 7 、9 and 10 show: This embodiment provides a solar outdoor controller. In addition to including the technical solution of the above embodiment, it also has the following technical features.

[0074] The edge seal also includes:

[0075] A reinforcing ring 13 is provided with a reinforcing groove on the end reinforcing part 9, and the reinforcing ring 13 is arranged on the reinforcing groove;

[0076] An outer pressure-receiving part 14 is arranged on the outside of the outer wrapping part 8, and the outer wall of the outer pressure-receiving part 14 is arc-shaped;

[0077] A pressure bladder 15 forms a closed pressure bladder 15 with a certain air pressure inside the outer pressure-receiving part 14;

[0078] Among them, the cross-section of the end reinforcing part 9 is triangular.

[0079] In this technical solution, the cross-section of the reinforcing ring 13 is circular and made of an elastic material; the arrangement of the reinforcing ring 13 can ensure that the end reinforcing part 9 is better fixed at the root of the outer fastening edge 7; and the cross-section of the end reinforcing part 9 is triangular, and a mating groove that is in interference fit with the end reinforcing part 9 is arranged at the root of the outer fastening edge 7, so as to better ensure the sealing effect of the connection between the end reinforcing part 9 and the outer fastening edge 7; and the outer pressure-receiving part 14 is used to cooperate with the outer pressing adjustment member, and by adjusting the outer pressure adjustment member, the pressure for pressing against the outer pressure part is realized, so that the pressure bladder 15 is squeezed to different degrees, thereby driving the outer pressure-receiving part 14 to deform so that it can better abut between the outer quick-release fastening member 4 and the outer fastening edge 7.

[0080] Embodiment 6:

[0081] As Figures 1 - 10As shown: This embodiment provides a solar outdoor controller, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0082] External pressure regulator includes:

[0083] The external connection block 16 is formed on the outer wall of the quick-release fastener 4, and a threaded hole is formed through the external connection block 16, and a regular polygonal limiting groove coaxially arranged with the threaded hole is formed on the side of the external connection block 16 facing the quick-release fastener 4; and the external connection block 16 can be fixed to the quick-release fastener 4 by threads;

[0084] An inner pressing block 17 is provided on the outer connecting block 16 and located inside the quick-release fastening member 4. A limiting block 23 is formed on the inner pressing block 17 and matches with the limiting groove.

[0085] An external adjusting rod 18 is provided on the threaded hole and is threadedly matched and abuts against the internal clamping block 17;

[0086] An internal pressure component is provided on the internal pressing block 17 to press the internal sealing component.

[0087] In the present technical solution, the setting of the external connecting block 16 can facilitate the insertion of the external adjusting rod 18, and the setting of the internal clamping block 17 is used to accommodate the internal pressure assembly. The cooperation between the limit groove and the limit block 23 can prevent the internal clamping block 17 from rotating during the adjustment of the external adjusting rod 18, thereby preventing the internal sealing assembly from being damaged. The internal pressure assembly is used to contact and apply pressure to the internal sealing assembly to adjust the fit of the installation of the internal sealing assembly.

[0088] Embodiment 7:

[0089] like Figures 3 - 10 As shown: This embodiment provides a solar outdoor controller, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0090] The side of the inner pressing block 17 away from the quick release buckle 4 is a pressing portion with a concave cross section. The inner pressure assembly includes:

[0091] A middle receiving arm 19, which is hingedly connected to the middle of the pressing portion, and the outer side of the middle receiving arm 19 is in a convex arc shape;

[0092] The side supporting arms 20 are hingedly connected on the clamping portion and on both sides of the middle supporting arm 19 , and the outer sides of the side supporting arms 20 are convex arc-shaped, and the convex arc-shaped structure is inclined upward from the middle supporting arm 19 .

[0093] In this technical solution, the concave-shaped pressing part can better wrap the inner sealing component; the middle receiving arm 19 is provided to squeeze and support the middle part on the outside of the inner sealing component, and the side receiving part 22 is provided to squeeze and support the upper and lower ends on the outside of the inner sealing component; and convex arc-shaped structures are formed on both the middle receiving arm 19 and the side receiving arm 20, so as to better squeeze and support the inner sealing component and avoid damaging the inner sealing component.

[0094] Embodiment 8:

[0095] As Figures 8 - 10 shown: This embodiment provides a solar outdoor controller. In addition to including the technical solution of the above embodiment, it also has the following technical features.

[0096] The inner sealing component further includes:

[0097] A pressing seal, which is arranged between the inner side of the outer quick-release fastening part 4 and the edge seal;

[0098] Among them, the pressing seal includes:

[0099] Pressing pieces 21, several pressing pieces 21 are stacked in sequence and the cross-sectional area decreases. The cross-sectional area of the pressing piece 21 on the side close to the outer quick-release fastening part 4 is smaller than the cross-sectional area on the side close to the edge seal;

[0100] Receiving parts 22, the heads and tails of adjacent pressing pieces 21 are connected through the receiving parts 22, and the receiving parts 22 are integrally arc-shaped.

[0101] In this technical solution,

[0102] The setting of the pressing seal plays a good supporting role between the outer quick-release fastening part 4 and the edge seal, and the external pressure regulating component can first squeeze the first sealing component and then apply the pressure on the edge seal; and the pressing seal includes several abutting pressing pieces 21, so as to achieve the effect of multi-layer sealing, and the setting of the external pressure regulating part can ensure good sealing contact between the pressing pieces 21 of each layer; and the setting of the receiving parts 22 can ensure that the pressing pieces 21 are connected into one body and ensure the effect at the connection between adjacent pressing seals.

[0103] The above describes the embodiments of the present application with reference to the drawings. Without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are only illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection scope of the present application.

Claims

1. A solar outdoor controller, characterized in that, include: Upper cover body (1); A solar panel (2), the solar panel (2) being arranged on the outer end surface of the upper cover body (1); A lower cover body (3), the lower cover body (3) being connected to the upper cover body (1); A battery assembly, wherein the lower cover body (3) is concave toward the upper cover body (1) to form a battery cavity, and a battery assembly is arranged in the battery cavity; A quick-release connection component is provided at the connection between the upper cover body (1) and the lower cover body (3); The quick-release connection kit includes: A quick-release buckle (4), the quick-release buckle (4) being buckled at the connection between the upper cover body (1) and the lower cover body (3); An inner sealing component is arranged on the inner side of the quick-release fastening component (4); External compression adjustment pieces, a plurality of external compression adjustment pieces are arranged on the outside of the quick-release buckle piece (4) and are pressed against the inner sealing component; Furthermore, a protruding outer buckle edge (7) is formed at the connection between the upper cover body (1) and the lower cover body (3), and the quick-release buckle component (4) is buckled on the two outer buckle edges (7); The inner seal assembly includes: An edge seal, which is arranged outside the two outer buckled edges (7) and covers the connection between the two outer buckled edges (7); The seals include: An outer covering portion (8), the outer covering portion (8) covering the two outer buckling edges (7); End reinforcement parts (9), which are arranged on both sides of the outer covering part (8) and extend from the roots of the outer buckling edges (7); External pressure regulator includes: An external connection block (16), the external connection block (16) being formed on an outer wall of the quick-release fastening component (4), and having a threaded hole extending therethrough, and having a regular polygonal limiting groove coaxially arranged with the threaded hole formed on a side of the external connection block (16) facing the quick-release fastening component (4); An inner pressing block (17) is provided on the outer connecting block (16) and located inside the quick-release buckle (4), and a limiting block (23) is formed on the inner pressing block (17) and cooperates with the limiting groove; An external adjustment rod (18) is provided with a threaded portion on the threaded hole and is engaged with the internal pressing block (17); An internal pressure component is provided on the internal pressing block (17) and is pressed toward the internal sealing component; The side of the inner pressing block (17) away from the quick-release buckle (4) is a pressing portion with a concave cross-section; Internal pressure components include: A middle receiving arm (19), the middle receiving arm (19) is hingedly connected to the middle of the pressing portion, and the outer side of the middle receiving arm (19) is arc-shaped; The side supporting arms (20) are respectively hingedly connected to the pressing portion and are located on both sides of the middle supporting arm (19), and the outer sides of the side supporting arms (20) are arc-shaped.

2. The solar outdoor controller according to claim 1, characterized in that, The inner seal assembly also includes: An edge reinforcement member is provided with a buckling groove (10) at the connection of the two outer buckling edges (7), an edge reinforcement member is provided in the buckling groove (10), and the edge reinforcement member is provided on the inner side of the edge sealing member and is in sealing contact with the connection of the two outer buckling edges (7); The reinforcements include: A reinforcing ring body (11), the cross section of the reinforcing ring body (11) is elliptical and is respectively in contact with the inner wall of the buckling groove (10) and along the sealing member; Pressure adjustment grooves (12) are provided on both sides of the reinforcing ring body (11). One of the pressure adjustment grooves (12) is connected to the connection part of the two outer fastening edges (7), and the other pressure adjustment groove (12) abuts against the inner side of the edge seal.

3. The solar outdoor controller according to claim 2, wherein The edge seal further includes: Reinforcing ring (13), a reinforcing groove is provided on the end reinforcing part (9), and a reinforcing ring (13) is provided on the reinforcing groove; Outer pressure-receiving part (14), an outer pressure-receiving part (14) is provided on the outer side of the outer wrapping part (8); Pressure bladder (15), a closed pressure bladder (15) is formed inside the outer pressure-receiving part (14).

4. The solar outdoor controller according to claim 3, characterized in that, The inner seal assembly further includes: Tightening seal, a tightening seal is provided inside the quick-release fastening part (4) and between the edge seal; Among them, the tightening seal includes: Contact pieces (21), several contact pieces (21) are stacked in sequence and the cross-sectional area decreases. The cross-sectional area of the contact piece (21) on the side close to the quick-release fastening part (4) is smaller than the cross-sectional area on the side close to the edge seal; Connecting part (22), the head and tail of adjacent contact pieces (21) are connected through the connecting part (22), and the connecting part (22) is integrally arc-shaped.

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