Expandable arched tent

Abstract

An extensible arched tent comprises a main protection body and a protection entrance arranged at the rear end of the main protection body, extension connectors are arranged on the two sides, close to the protection entrance, of the rear end of the main protection body respectively, and the extension connectors on the two sides are communicated with the main protection body and the extension connectors on the two sides. The main protection body comprises a protection outer tent, a heat preservation inner tent, an air rib, an internal air supply pipe, inner ground cloth, outer ground cloth, an access door, an expansion connecting port, a vehicle-mounted connecting port, an inflation port, a wind rope hanging point, a main protection body door, an expansion connecting door and the like. The protection access is provided with a first protection channel, a second protection channel and a toilet; the tent is divided into three relatively independent spaces, the main protection body is a main place for working, resting and living of operators, and the protection entrance and exit is a buffer channel for the operators to go in and out of the tent, so that contaminated air is prevented from directly entering the protection body, the living requirements of the operators are met in all directions, and the safety of the operators is improved. The expansion connecting body is used for being connected with a plurality of tents, and the space use requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of tents, in particular to an expandable arched tent. Background Art

[0002] A nuclear, biological and chemical protection tent is a tent that is used in conjunction with an internal environmental control system to provide a collective protective space for personnel and equipment inside the tent in a nuclear, biological and chemical contaminated environment. It can effectively isolate toxic smoke, toxic mist, radioactive dust and biological aerosols in the contaminated air, establish a contamination-free safe working space, and ensure the life safety of personnel inside the space.

[0003] At present, the existing nuclear, biological and chemical protection tent field is still in the development stage, and the product form and function are relatively simple. During use, multiple tents cannot be connected, resulting in insufficient safe working space, which is difficult to meet the military's space configuration needs in the nuclear, biological and chemical battlefield environment. In response to the increasingly severe nuclear, biological and chemical protection situation, some special-function shelters, tents and other confined spaces not only have nuclear, biological and chemical protection needs, but also need to have expandable functions.

[0004] For example, in the field of tent technology, CN214833483U proposes a cabin expansion tent, including a cabin, a frame, a column, a tent body, a fixing device, and a locking device. One side of the frame is hinged to the edge of the side door panel of the cabin, and the shaft is set along the X-axis direction; the columns are arranged in a plurality, one end of the column is rotatably set on the other side of the frame, and the shaft is set along the X-axis direction, the column is telescopically set, and after the column is telescopically extended, it is rotated along the Y-axis direction to be parallel to the frame, which is convenient for folding and withdrawing; the tent body is wrapped and set on the outside of the frame and the column; the fixing device fixes the unfolded frame and the column; the locking device is set on the side door panel of the cabin, and the folded frame and the column are locked on the side door panel of the cabin. Through the above technical solution, the problem of the inconvenience of the cabin expansion is solved; but this expansion tent has a complex structure and can be connected and expanded with the cabin, but it cannot realize the interconnection and intercommunication between multiple tents, and cannot meet the demand for expanding space.

[0005] In view of the above problems, it is urgent to design an expandable arched tent with a simple structure, which is easy to build, store and transport. Summary of the invention

[0006] The technical problem to be solved by the utility model is to provide an expandable arched tent, which solves the problem that the tents in the prior art cannot achieve space expansion and the working space is insufficient. By connecting the expansion connector with other protective tents, the connection between multiple tents is achieved, protection is provided for the personnel and equipment inside the tent, and the requirements of multi-space configuration are met.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is: an expandable arch tent, comprising a main protective body, and a protective entrance and exit arranged at the rear end of the main protective body. The rear end of the main protective body is provided with expansion connecting ports on both sides close to the protective entrance and exit. The expansion connecting ports on both sides are respectively connected to the main protective body and the expansion connecting bodies on both sides through airtight zippers, thereby expanding the protective space while ensuring sealing.

[0008] In a preferred embodiment, the main protective body includes air ribs, and a protective outer tent and a thermal insulation inner tent are respectively enclosed and installed inside and outside the air ribs. An internal air supply duct is installed inside the thermal insulation inner tent. An outer ground cloth is laid at the bottom of the air ribs, and an inner ground cloth is laid inside on the outer ground cloth, and the outer ground cloth extends to the entire outside of the tent.

[0009] In the preferred scheme, an access door is provided on the protective outer tent at the rear end of the main protective body, which is connected with the protective entrance and exit through the access door. An inflation port is also provided on the protective outer tent at the rear end, and the inflation port is connected with the interior of the air rib of the main protective body. A vehicle-mounted connection port is provided at the front end of the main protective body, and wind rope hanging points are provided on both sides of the protective outer tent. Wind ropes are hung on the wind rope hanging points, and weight bags and ground nails are provided as needed to fix the tent.

[0010] In the preferred solution, a main protective body door is provided on the insulating inner tent at the rear end of the main protective body, and the main protective body door is connected to the entrance and exit door on the protective outer tent. Extended connecting doors are respectively provided on the insulating inner tent near both sides of the protective entrance and exit, and are connected to the extended connecting port.

[0011] In a preferred embodiment, the air rib comprises a main protective body air rib and a vehicle-mounted connection port air rib that are connected and fixed together, both of which are provided with an inflation valve. Velcro is provided on both sides of the main protective body air rib, which are respectively adhered to the protective outer tent and the thermal insulation inner tent of the main protective body. The air rib is inflated from the inflation port, and the filling and inflation are achieved through the inflation valve. After inflation, the whole is arched.

[0012] In a preferred embodiment, the internal air supply duct is arranged in the middle above the main protective body, and is connected to the internal and external environmental control systems through a vehicle-mounted connection port. Air holes are evenly distributed on the internal air supply duct to provide comfortable and clean air to the inside of the main protective body.

[0013] In a preferred solution, the inner fabric of the main protective body is bonded to the protective outer canopy by means of Velcro, and handles are provided on both sides of the outer fabric for unfolding, retracting or moving the outer fabric.

[0014] In a preferred embodiment, the protective entrance and exit include protective entrance and exit air ribs fixed together with the main protective body air ribs, the outside of the protective entrance and exit air ribs is covered with a protective entrance and exit protective outer canopy, and three relatively independent spaces, namely a second protective passage, a first protective passage and a toilet, are arranged side by side horizontally inside, and the bottom of the three spaces is laid with a protective entrance and exit inner cloth on the outer cloth.

[0015] In a preferred solution, the first protection channel door and the toilet door are respectively provided on the protection entrance and exit protection tents on both sides of the first protection channel, and the protection entrance and exit protection tent of the second protection channel is provided with a protection entrance and exit door for entering and exiting the tent, the main protection body entrance and exit door connects the main protection body and the first protection channel, the first protection channel door connects the first protection channel and the second protection channel, and the toilet door connects the first protection channel and the toilet.

[0016] In a preferred embodiment, the extended connector includes a supporting rod, and an extended connector protective outer tent and an extended connector thermal insulation inner tent are respectively enclosed and covered inside and outside the supporting rod, an extended connector outer ground cloth is laid on the bottom, and an extended connector inner ground cloth is laid on the extended connector outer ground cloth inside, and the extended connector outer ground cloth extends to the outside of the entire extended connector, and an extended connector wind rope hanging point is provided on the extended connector protective outer tent for windproof fixation, and an extended connector Velcro is also provided inside and outside, which are respectively bonded to the extended connector thermal insulation inner tent and the extended connector inner ground cloth, and a supporting rod strap is also provided inside to fix the support rod.

[0017] In the preferred embodiment, the support rods include four short rods, four long rods and four long rods in the height direction, which are connected together by a three-way joint, and the elastic plungers installed at the ends of each rod are popped out and fixed in the radial holes of the three-way joint, thereby connecting and fixing each rod and the three-way joint as a whole.

[0018] The utility model provides an expandable arched tent, which has the following beneficial effects:

[0019] 1. The utility model is provided with an extended connection port to achieve the connection between multiple tents and meet the space configuration requirements;

[0020] 2. The air rib structure of the utility model is designed to be arched, which has better wind and snow resistance and a more stable spatial structure;

[0021] 3. The utility model is equipped with internal and external environment control devices, which can provide a safe and comfortable working environment for personnel and equipment inside the tent;

[0022] 4. The utility model is provided with a vehicle-mounted connection port, which can connect the main protective body with the vehicle-mounted cabin to form a closed space, effectively ensuring the safety of workers under nuclear, biological and chemical conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and implementation examples:

[0024] Figure 1 It is an axonometric stereogram of the utility model;

[0025] Figure 2 It is an axonometric cross-sectional view of the utility model;

[0026] Figure 3 It is a front view of the utility model;

[0027] Figure 4 A schematic diagram of the protective entrance and exit of the utility model with the protective outer cover removed;

[0028] Figure 5 It is a schematic diagram of the expansion connector of the utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the support rod of the utility model;

[0030] In the figure: main protective body 1, protective entrance and exit 2, extended connecting body 3, protective outer tent 101, thermal insulation inner tent 102, air rib 103, internal air supply pipe 104, inner fabric 105, outer fabric 106, entrance and exit door 107, extended connecting port 108, vehicle-mounted connecting port 109, inflation port 110, wind rope hanging point 111, main protective body door 112, extended connecting door 113, main protective body air rib 114, vehicle-mounted connecting port air rib 115, inflation valve 116, air vent 117, Velcro 118, handle 119, first protective channel 201 , second protection passage 202, bathroom 203, protection entrance and exit air rib 204, protection entrance and exit protection outer tent 205, protection entrance and exit inner fabric 206, first protection passage door 207, bathroom door 208, protection entrance and exit door 209, extended connector protection outer tent 301, extended connector thermal insulation inner tent 302, extended connector inner fabric 303, extended connector outer fabric 304, support rod 305, extended connector wind rope hanging point 306, extended connector Velcro 307, support rod strap 308, airtight zipper 309. DETAILED DESCRIPTION

[0031] like Figures 1 to 6 As shown, an expandable arch tent includes a main protective body 1 and a protective entrance and exit 2 arranged at the rear end of the main protective body 1. The rear end of the main protective body 1 is provided with expansion connection ports 108 on both sides close to the protection entrance and exit 2. The expansion connection ports 108 on both sides are respectively connected to the main protective body 1 and the expansion connection bodies 3 on both sides through airtight zippers 309, so as to expand the protective space while ensuring sealing.

[0032] In this embodiment, the main protective body 1 comprises an air rib 103, and the protective outer tent 101 and the heat-insulating inner tent 102 are respectively enclosed and installed inside and outside the air rib 103, and the inner air supply pipe 104 is installed inside the heat-insulating inner tent 102. The bottom of the air rib 103 is laid with an outer ground cloth 106, and the inner ground cloth 105 is laid on the outer ground cloth 106, and the outer ground cloth 106 extends to the outside of the entire tent;

[0033] The protective outer tent 101 at the rear end of the main protective body 1 is provided with an access door 107, which is connected to the protective entrance and exit 2 through the access door 107. The protective outer tent 101 at the rear end is also provided with an inflation port 110, which is connected to the inside of the air rib 103 of the main protective body 1. The front end of the main protective body 1 is provided with a vehicle connection port 109. Wind rope hanging points 111 are provided on both sides of the protective outer tent 101. Wind ropes are hung on the wind rope hanging points 111, and weight bags and ground nails are provided as needed to fix the tent.

[0034] A main protective body door 112 is provided on the thermal insulation inner tent 102 at the rear end of the main protective body 1, and the main protective body door 112 is connected to the access door 107 on the protective outer tent 101, and expansion connection doors 113 are respectively provided on the thermal insulation inner tent 102 near both sides of the protective access 2, which are connected to the expansion connection port 108;

[0035] The air rib 103 comprises a main protective body air rib 114 and a vehicle-mounted connection port air rib 115 connected and fixed together, both of which are provided with an inflation valve 116. Velcro 118 is provided on both sides of the main protective body air rib 114, which is respectively adhered to the protective outer tent 101 and the thermal insulation inner tent 102 of the main protective body 1. The air rib 103 is inflated from the inflation port 110, and the inflation and filling are realized through the inflation valve 116. After inflation, the whole is arched;

[0036] The internal air supply pipe 104 is arranged in the middle above the main protective body 1, and is connected to the internal and external environmental control systems through the vehicle-mounted connection port 109. The internal air supply pipe 104 is evenly distributed with air holes 117 to provide comfortable and clean air inside the main protective body 1;

[0037] The inner fabric 105 of the main protective body 1 is bonded to the protective outer canopy 101 by means of a Velcro 118, and handles 119 are provided on both sides of the outer fabric 106 for unfolding, retracting or moving the outer fabric 106;

[0038] The protective entrance and exit 2 comprises a protective entrance and exit air rib 204 fixed to the air rib 103 of the main protective body 1, the protective entrance and exit air rib 204 is covered with a protective entrance and exit protective outer canopy 205, and three relatively independent spaces, namely, a second protective passage 202, a first protective passage 201 and a toilet 203, are arranged side by side in a horizontal direction inside, and a protective entrance and exit inner fabric 206 is laid on the outer fabric 106 at the bottom of the three spaces;

[0039] The protective outer tents 205 on both sides of the first protective passage 201 are respectively provided with a first protective passage door 207 and a toilet door 208, and the protective outer tent 205 of the second protective passage 202 is provided with a protective entrance and exit door 209 for entering and exiting the tent, the main protective body 1 entrance and exit door 107 connects the main protective body 1 and the first protective passage 201, the first protective passage door 207 connects the first protective passage 201 and the second protective passage 202, and the toilet door 208 connects the first protective passage 201 and the toilet 203;

[0040] The extended connector 3 comprises a support rod 305, and the support rod 305 is respectively enclosed and covered with an extended connector protective outer tent 301 and an extended connector thermal insulation inner tent 302, and the bottom is paved with an extended connector outer ground cloth 304, and the inner part of the extended connector is paved with an extended connector inner ground cloth 303, and the extended connector outer ground cloth 304 extends to the outside of the entire extended connector 3, and the extended connector wind rope hanging point 306 is arranged on the extended connector protective outer tent 301 for windproof fixation, and the extended connector Velcro 307 is also arranged inside and outside, which is respectively bonded to the extended connector thermal insulation inner tent 302 and the extended connector inner ground cloth 303, and the support rod strap 308 is also arranged inside to fix the support rod 305;

[0041] The support rod 305 includes four short rods, four long rods and four long rods in the height direction, which are connected together through a three-way joint, and the elastic plungers installed at the ends of each rod are popped out and fixed in the radial holes of the three-way joint, so that each rod and the three-way joint are connected and fixed as a whole.

[0042] When used specifically, the utility model is an expandable arched tent, which needs to be used in conjunction with nuclear, biological and chemical protection equipment such as a gas filtering ventilation device and a positive pressure monitoring and control device to form a complete nuclear, biological and chemical protection system. Before use, the vehicle-mounted connection port 109 is connected to the square cabin wall through a pressure plate and fastening screws to form a closed space, and the air outlet of the vehicle-mounted gas filtering ventilation device is connected to the internal air supply pipe 104 described in the utility model. After installation, the tent can be withdrawn and folded and placed inside the square cabin. When needed, the vehicle can be moved to a designated area, and the tent can be lowered from the cabin using the winch on the vehicle, and an outer cloth 10 is first spread on the flat ground. 6. Then unfold the tent on the outer fabric 106 and flatten it, and use the air pump to inflate the air rib 103 from the air inlet 110. The tent can automatically unfold as the pressure of the air rib 103 increases. When the pressure of the air rib 103 reaches a certain value, the inflation will automatically stop. At this time, just close the inflation valve. When nuclear, biological and chemical contamination occurs, people enter the tent, close the entrance and exit doors of the tent, start the gas filtering and ventilation equipment, and send clean air into the tent for the people inside the tent to breathe. At the same time, under the coordinated action of the positive pressure monitoring and control device, a positive pressure space is established inside the tent to prevent the external contaminated air from penetrating into the tent.

[0043] When multiple sets of protective tents are extended and connected, the extended connector 3 and the extended connector 3 support rod 305 should be built in advance. The specific steps are as follows:

[0044] Step 1: First, insert the two short rods and two long rods of the support rod 305 into the four three-way joints in an empty space, and fix them with elastic plungers, wherein the short rods are parallel to the short rods and the long rods are parallel to the long rods, and the installation and fixation of the base of the support rod 305 is completed; insert the four long rods of the support rod 305 into the three-way joints in the height direction, and fix them with elastic plungers; install the remaining four three-way joints on the long rods in the height direction; finally, insert the two short rods and the two long rods into the three-way joints, and fix them with elastic plungers to complete the assembly and connection of the support rods;

[0045] Step 2: Place the support rod 305 into the extended connector protective outer canopy 301, adjust the relative position of the support rod 305 and the extended connector protective outer canopy 301 to avoid difficulty in closing the airtight zippers 309 at both ends, pass the support rod strap 308 inside the outer canopy through the rod and tighten it, and complete the fixed connection between the outer canopy and the support rod 305;

[0046] Step 3: The airtight zipper 309 on the built extension connector 3 is connected with the airtight zippers 309 on other tents to realize the extension function of the tent.

[0047] In a preferred embodiment, the main protective body 1 comprises an air rib 103, and the air rib 103 is respectively enclosed and covered with a protective outer tent 101 and a thermal insulation inner tent 102 inside and outside, and an internal air supply duct 104 is installed inside the thermal insulation inner tent 102. An outer ground cloth 106 is laid on the bottom of the air rib 103, and an inner ground cloth 105 is laid on the outer ground cloth 106 inside, and the outer ground cloth 106 extends to the outside of the entire tent; the above arrangement ensures the overall protection and airtightness of the tent; the double-layer arrangement of the inner ground cloth 105 and the outer ground cloth 106 improves the overall wear resistance of the tent, and the outer ground cloth 106 extends to the outside of the entire tent, reducing the friction damage of the bottom of the tent to the ground, thereby further improving the overall service life of the tent.

[0048] In the preferred scheme, the protective outer canopy 101 at the rear end of the main protective body 1 is provided with an access door 107, which is connected to the protective entrance and exit 2 through the access door 107, and the protective outer canopy 101 at the rear end is also provided with an inflation port 110, which is connected to the inside of the air rib 103 of the main protective body 1, and a vehicle-mounted connection port 109 is provided at the front end of the main protective body 1, and wind rope hanging points 111 are provided on both sides of the protective outer canopy 101. Wind ropes are hung on the wind rope hanging points 111, and weight bags and ground nails are provided as needed to fix the tent; the above settings ensure the relative independence of the main protective body 1 while ensuring its connection with external and vehicle-mounted devices, thereby improving the sealing and safety of the tent; the wind rope hanging points 111 are equipped with weight bags and ground nails, which improve the tent's ability to resist wind, rain and snow, so that the tent has good applicability in a variety of environments, thereby ensuring the safety of the operators.

[0049] In the preferred scheme, a main protective body door 112 is provided on the thermal insulation inner tent 102 at the rear end of the main protective body 1, and the main protective body door 112 is connected to the entrance and exit door 107 on the protective outer tent 101, and extended connecting doors 113 are respectively provided on the thermal insulation inner tent 102 near both sides of the protective entrance and exit 2, which are connected to the extended connecting port 108; the above arrangement further ensures the sealing performance and thermal insulation performance of the thermal insulation inner tent 102 of the main protective body 1; the arrangement of the extended connecting door 113 and the extended connecting port 108 enables the expansion and connection between tents to be realized, thereby expanding the working space of a single tent.

[0050] In the preferred embodiment, the air rib 103 includes a main protective body air rib 114 and a vehicle-mounted connection port air rib 115 that are connected and fixed together, both of which are provided with an inflation valve 116. Velcro 118 is provided on both sides of the main protective body air rib 114, which are respectively adhered to the protective outer canopy 101 and the thermal insulation inner tent 102 of the main protective body 1. The air rib 103 is inflated from the inflation port 110, and the replenishment and inflation are achieved through the inflation valve 116. After inflation, the whole is arched. The above arrangement makes each air rib relatively independent and mutually supportive, and the adhesion design of the protective outer canopy 101, the thermal insulation inner tent 102 and the main protective body air rib 114 is convenient for quick construction, withdrawal, storage and transportation. After inflation, the air rib 103 is arched as a whole, which is not only simple and beautiful in appearance, but also has better dimensional stability.

[0051] In the preferred scheme, the internal air supply duct 104 is arranged in the middle above the main protective body 1, and is connected to the internal and external environmental control systems through the vehicle-mounted connection port 109. The internal air supply duct 104 is evenly distributed with air holes 117 to provide comfortable and clean air for the inside of the main protective body 1; with the above arrangement, when the outside of the tent is subject to nuclear, biological and chemical contamination or threats, the inside can be supplied with clean air to the workers inside the tent through the connected vehicle-mounted connection port 109 and the internal air supply duct 104, thereby ensuring the personal safety of the workers.

[0052] In a preferred embodiment, the inner fabric 105 of the main protective body 1 is bonded to the protective outer tent 101 by means of Velcro 118, and handles 119 are provided on both sides of the outer fabric 106 for unfolding, retracting or moving the outer fabric 106; the above arrangement further improves the operability, convenience and operating efficiency of erecting, retracting, transporting and unfolding the tent.

[0053] In the preferred scheme, the protective entrance and exit 2 includes a protective entrance and exit air rib 204 fixed together with the air rib 103 of the main protective body 1, the protective entrance and exit air rib 204 is covered with a protective entrance and exit protective outer tent 205, and three relatively independent spaces, namely a second protective channel 202, a first protective channel 201 and a toilet 203, are arranged side by side in a horizontal direction inside, and a protective entrance and exit inner cloth 206 is laid on the outer cloth 106 at the bottom of the three spaces; the above arrangement makes the spaces inside the tent relatively independent while being interconnected to form an integral enclosed space. When the external environment is polluted, the three spaces can play a role in washing and disinfection buffering, providing a safe and pollution-free living space inside the main protective body 1 while meeting the living needs of the workers, thereby further enhancing the humanity and comfort of the tent.

[0054] In the preferred scheme, the first protection channel door 207 and the toilet door 208 are respectively provided on the protection entrance and exit protection tents 205 on both sides of the first protection channel 201, and the protection entrance and exit protection tent 205 of the second protection channel 202 is provided with a protection entrance and exit door 209 for entering and exiting the tent. The main protection body 1 entrance and exit door 107 connects the main protection body 1 and the first protection channel 201, the first protection channel door 207 connects the first protection channel 201 and the second protection channel 202, and the toilet door 208 connects the first protection channel 201 and the toilet 203; the above arrangement ensures that the three spaces of the protection entrance and exit 2 are relatively independent and interconnected, which ensures the airtightness inside the main protection body 1 of the tent when the operators enter and exit, and makes the tent have good practicality, thereby further improving the safety and comfort of the tent.

[0055] In a preferred embodiment, the extended connector 3 comprises a support rod 305, and the support rod 305 is respectively enclosed and covered with an extended connector protective outer tent 301 and an extended connector heat-insulating inner tent 302, and the bottom is paved with an extended connector outer ground cloth 304, and the inner part of the extended connector is paved with an extended connector inner ground cloth 303, and the extended connector outer ground cloth 304 extends to the outside of the entire extended connector 3, and the extended connector wind rope hanging point 306 is provided on the extended connector protective outer tent 301 for windproof fixation, and the extended connector Velcro 307 is also provided inside and outside, which is respectively connected to the extended connector heat-insulating inner tent 302 and the extended connector. The inner ground cloth 303 is bonded, and a support rod strap 308 is further provided inside thereof for fixing the support rod 305; the support rod 305 includes four short rods, four long rods and four long rods in the height direction, which are connected together through a three-way joint, and the elastic plungers installed at the ends of each rod are popped out and fixed in the radial holes of the three-way joint, so that each rod and the three-way joint are connected and fixed as a whole; the above arrangement allows the tent space to be expanded, and due to the arrangement of the support rod 305, the wind rope hanging point 306 of the expansion connector, etc., the structural stability of the expansion connector is further improved, and the detachable structural design of the support rod 305 makes the connection stable and portable.

[0056] In summary, the utility model provides an expandable arched tent. Through the comprehensive design of the main protective body 1, the protective entrance and exit 2, and the extended connector 3, a tent structure integrating decontamination buffering, rest and life, and command operations is formed; the main protective body 1 is the place with the largest internal space of the tent, and command operations are carried out when suffering from nuclear, biological and chemical pollution to ensure the life safety of the internal personnel; the protective entrance and exit 2 is a decontamination buffer channel for the operating personnel to enter and exit the tent, which prevents the contaminated air from directly entering the main protective body 1 while fully meeting the living needs of the operating personnel; the extended connector 3 is used to establish connections with multiple tents, thereby improving the space usage requirements; the utility model overcomes the problem of insufficient safe working space in existing military tents, and is connected with other protective tents by extending the connector 3. When suffering from nuclear, biological and chemical weapons attacks and large-scale nuclear, biological and chemical contamination occurs, multiple tents are connected to each other, meeting the space configuration requirements of the army in the nuclear, biological and chemical battlefield environment, and providing guarantee for command in a modern war environment; the utility model is exquisitely designed, simple in structure, and solves big problems with small ideas. It has strong operability and powerful functions, and has high practical application value, good economic and social benefits.

Claims

1. An expandable arched tent, comprising a main protective body (1), characterized in that: It also comprises a protective entrance and exit (2) arranged at the rear end of the main protective body (1); the rear end of the main protective body (1) is provided with expansion connection ports (108) on both sides close to the protective entrance and exit (2); the expansion connection ports (108) on both sides are connected to the main protective body (1) and the expansion connection bodies (3) on both sides through airtight zippers (309), respectively, so as to expand the protective space while ensuring sealing.

2. The expandable arched tent according to claim 1, characterized in that: The main protective body (1) comprises an air rib (103), wherein the protective outer tent (101) and the heat-insulating inner tent (102) are respectively enclosed and installed inside and outside the air rib (103), an internal air supply pipe (104) is installed inside the heat-insulating inner tent (102), an outer ground cloth (106) is laid at the bottom of the air rib (103), and an inner ground cloth (105) is laid on the outer ground cloth (106), and the outer ground cloth (106) extends to the outside of the entire tent.

3. The expandable arched tent according to claim 2, characterized in that: The protective outer tent (101) at the rear end of the main protective body (1) is provided with an access door (107), which is connected to the protective access door (2) through the access door (107); the protective outer tent (101) at the rear end is also provided with an inflation port (110), which is connected to the inside of the air rib (103) of the main protective body (1); the front end of the main protective body (1) is provided with a vehicle connection port (109); wind rope hanging points (111) are provided on both sides of the protective outer tent (101); wind ropes are hung on the wind rope hanging points (111), and weight bags and ground nails are provided as needed to fix the tent.

4. The expandable arched tent according to claim 3, characterized in that: A main protective body door (112) is provided on the thermal insulation inner tent (102) at the rear end of the main protective body (1), and the main protective body door (112) is connected to an access door (107) on the protective outer tent (101). Extension connection doors (113) are provided on the thermal insulation inner tent (102) on both sides of the protective access door (2), respectively, and are connected to the extension connection port (108).

5. The expandable arched tent according to claim 2, characterized in that: The air rib (103) comprises a main protective body air rib (114) and a vehicle-mounted connection port air rib (115) which are connected and fixed together, and both are provided with an inflation valve (116). Velcro (118) is provided on both sides of the main protective body air rib (114), which is respectively adhered to the protective outer tent (101) and the thermal insulation inner tent (102) of the main protective body (1). The air rib (103) is inflated from the inflation port (110), and the inflation and filling are achieved through the inflation valve (116). After inflation, the air rib (103) is in an arched shape as a whole.

6. The expandable arched tent according to claim 2, characterized in that: The internal air supply pipe (104) is arranged in the middle above the main protective body (1) and is connected to the internal and external environmental control systems via the vehicle-mounted connection port (109). The internal air supply pipe (104) is evenly distributed with air holes (117) to provide comfortable and clean air inside the main protective body (1).

7. The expandable arched tent according to claim 2, characterized in that: The inner fabric (105) of the main protective body (1) is bonded to the protective outer tent (101) via a Velcro fastener (118), and handles (119) are provided on both sides of the outer fabric (106) for unfolding, retracting or moving the outer fabric (106).

8. The expandable arched tent according to claim 2, characterized in that: The protective entrance and exit (2) comprises a protective entrance and exit air rib (204) fixed to the air rib (103) of the main protective body (1); the protective entrance and exit air rib (204) is covered with a protective entrance and exit protective outer canopy (205) on the outside; three relatively independent spaces, namely a second protective passage (202), a first protective passage (201) and a toilet (203), are arranged side by side in a transverse order inside; and a protective entrance and exit inner fabric (206) is laid on the outer fabric (106) at the bottom of the three spaces.

9. The expandable arched tent according to claim 8, characterized in that: The protective entrance and exit protective outer tents (205) on both sides of the first protective passage (201) are respectively provided with a first protective passage door (207) and a toilet door (208); the protective entrance and exit protective outer tent (205) of the second protective passage (202) is provided with a protective entrance and exit door (209) for entering and exiting the tent; the main protective body (1) entrance and exit door (107) connects the main protective body (1) and the first protective passage (201); the first protective passage door (207) connects the first protective passage (201) and the second protective passage (202); and the toilet door (208) connects the first protective passage (201) and the toilet (203).

10. The expandable arched tent according to claim 1, characterized in that: The extended connector (3) comprises a support rod (305), the support rod (305) is enclosed and covered with an extended connector protective outer tent (301) and an extended connector thermal insulation inner tent (302) inside and outside, respectively, the bottom is paved with an extended connector outer ground cloth (304), the inside is paved with an extended connector inner ground cloth (303) on the extended connector outer ground cloth (304), the extended connector outer ground cloth (304) extends to the outside of the entire extended connector (3), the extended connector wind rope hanging point (306) is arranged on the extended connector protective outer tent (301) for windproof fixation, and the extended connector Velcro (307) is also arranged inside and outside, respectively bonded to the extended connector thermal insulation inner tent (302) and the extended connector inner ground cloth (303), and a support rod binding strap (308) is also arranged inside to fix the support rod (305).

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