Compression-resistant structure of large-span tent

Abstract

The utility model belongs to the technical field of tents, and particularly relates to a compression-resistant structure of a large-span tent, which is applied to transverse and longitudinal support of the large-span tent with a frame structure and comprises a framework, a connecting framework and a middle column. The middle columns are of columnar structures, and pressure bearing parts are arranged at the upper ends and the lower ends of the middle columns; the number of the frameworks is at least six, each framework is of a rod-shaped structure, the first ends of three of the frameworks are detachably connected with one middle column, the first ends of the other three frameworks are detachably connected with the other middle column, and the end face of the first end of each framework abuts against the edge of the corresponding pressure bearing part; the connecting framework is of a rod-shaped structure, and the two ends of the connecting framework are detachably connected with the two middle columns respectively. The pressure-resistant supporting stability of the tent can be improved, and meanwhile the problems that tent components are increased, the internal space is reduced, material consumption is increased, and the overall weight of the tent is increased are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tents, and particularly relates to a compression-resistant structure of a large-span tent. Background Art

[0002] With the continuous increase of activities such as field training, field operations, field rescues, and field construction, more and more requirements are continuously put forward for the logistics support work of personnel and materials under field conditions; including, it is necessary to provide a safe and stable rest area for personnel and a closed and firm storage space for materials. Especially in the case of a large number of people and sufficient materials, large-span tents are usually adopted to provide rest and storage space for personnel and materials.

[0003] Currently, there are various types and shapes of large-span tents. Some adopt fixed frame structures, and some adopt foldable structures, etc. However, the structural dimensions of each component of the large-span tent are relatively large. Especially, the span of the support skeleton of the frame structure tent can reach more than ten meters or even larger. With the increase of the tent span, in order to ensure the overall compression-resistant support stability of the tent, the requirement for the support strength of the skeleton also increases greatly; currently, large-span tents usually adopt methods such as adding additional intermediate supports or increasing the size of the skeleton structure to improve the overall compression-resistant support stability of the tent. However, these methods will cause problems such as an increase in the number of tent components, a reduction in the internal space, an increase in material consumption, and an increase in the overall weight of the tent.

[0004] Therefore, there is an urgent need to provide a compression-resistant structure for a large-span tent, which can, while increasing the compression-resistant support stability of the tent, avoid problems such as an increase in the number of tent components, a reduction in the internal space, an increase in material consumption, and an increase in the overall weight of the tent. Content of the Utility Model

[0005] Based on the above problems existing in the prior art, the utility model proposes a compression-resistant structure for a large-span tent, which can decompose the vertical pressure load into component forces transmitted along the skeleton and the connecting skeleton through the pressure-bearing part, and cancel them out with the reverse support forces provided by the skeleton and the connecting skeleton; thereby increasing the support strength of the tent. The specific content of the utility model is as follows:

[0006] A compression-resistant structure for a large-span tent, which is applied to the lateral and longitudinal supports of a large-span frame structure tent, and includes a skeleton, a connecting skeleton, and a middle column;

[0007] The number of the middle columns is at least 2, and they are all columnar structures, and pressure-bearing parts are arranged at both the upper and lower ends thereof;

[0008] The number of the skeletons is at least 6, and they are all rod-shaped structures. The first ends of 3 of the skeletons are detachably connected to 1 of the middle columns, and the first ends of the other 3 skeletons are detachably connected to the other middle column. Moreover, the end faces of the first ends of each skeleton abut against the edges of the corresponding pressure-bearing parts.

[0009] The connecting skeleton is a rod-shaped structure, and its two ends are respectively detachably connected to 2 of the middle columns.

[0010] Furthermore, a first connecting part is arranged on the columnar end face of each middle column; the first end of each skeleton is detachably connected to the middle column through the first connecting part.

[0011] Furthermore, a second connecting part is also arranged on the columnar end face of each middle column; the two ends of the connecting skeleton are detachably connected to 2 of the middle columns respectively through the second connecting parts.

[0012] Furthermore, the skeleton includes an upper support rod, a lower support rod and a plurality of inclined connecting rods; the inclined connecting rods are obliquely arranged between the upper support rod and the lower support rod, and one end is fixedly connected to the upper support rod and the other end is fixedly connected to the lower support rod.

[0013] Furthermore, the connecting skeleton includes an upper connecting support rod, a lower connecting support rod and a plurality of the inclined connecting rods; the inclined connecting rods are obliquely arranged between the upper connecting support rod and the lower connecting support rod, and one end is fixedly connected to the upper connecting support rod and the other end is fixedly connected to the lower connecting support rod.

[0014] Furthermore, straight connecting rods are vertically arranged between the upper support rod and the lower support rod and between the upper connecting support rod and the lower connecting support rod.

[0015] Furthermore, the pressure-bearing part is a disc-shaped structure.

[0016] Furthermore, a leg is hingedly connected to the second end of each skeleton.

[0017] Furthermore, a telescopic rod is installed between each skeleton and the corresponding leg; the telescopic rod is a telescopic structure, one end is hingedly connected to the skeleton, the other end is hingedly connected to the leg, and a fixing part for restricting its telescopic length is arranged in the middle.

[0018] The beneficial effects of the present utility model are as follows:

[0019] 1. The present utility model is provided with a middle column, which can provide a middle connection point for a plurality of skeletons and connecting skeletons, making the connection of the tent more stable;

[0020] 2. The utility model is provided with a central column and a pressure-bearing part, which can increase the support strength of the tent through the central column and the pressure-bearing part when the tent is subjected to a vertical pressure load; adopting this structural method, there is no need to set up additional support structures or increase the size of the support structure in the tent, thus solving the problems of increasing the number of tent components, reducing the internal space, increasing the material consumption and increasing the overall weight of the tent while increasing the anti-compression support stability of the tent;

[0021] 3. A framework is provided, which can provide more stable support for the tent in the horizontal and vertical directions;

[0022] 4. A connecting framework is provided, which can increase the span of the tent; both ends of the connecting framework are detachably connected to the central column, and whether to install the connecting framework to expand the span of the tent can be flexibly selected according to the actual coverage area requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those skilled in the art can obtain other embodiments according to these drawings without creative efforts.

[0024] Figure 1 It is a schematic diagram of the overall frame structure of the anti-compression structure of a large-span tent;

[0025] Figure 2 It is a schematic diagram of the longitudinal frame structure of the anti-compression structure of a large-span tent;

[0026] Figure 3 It is a schematic diagram of the transverse frame structure of the anti-compression structure of a large-span tent;

[0027] Figure 4 It is a schematic diagram of the central column structure of the anti-compression structure of a large-span tent;

[0028] Figure 5 It is a schematic diagram of the central column structure of the anti-compression structure of a large-span tent Figure 2 ;

[0029] Figure 6 It is a schematic diagram of the force on the transverse frame when the large-span tent does not have an anti-compression structure;

[0030] Figure 7 It is a schematic diagram of the force on the longitudinal frame when the large-span tent does not have an anti-compression structure;

[0031] Figure 8 It is a schematic diagram of the force analysis on the longitudinal frame of the anti-compression structure of a large-span tent;

[0032] Figure 9Schematic diagram for force analysis of the transverse frame of the anti-compression structure of a large-span tent;

[0033] In the figure: 1. Skeleton; 101. Upper support rod; 102. Lower support rod; 2. Connecting skeleton; 201. Upper connecting support rod; 202. Lower connecting support rod; 3. Middle column; 301. Bearing part; 302. First connecting part; 303. Second connecting part; 4. Diagonal connecting rod; 5. Straight connecting rod; 6. Leg; 601. Telescopic rod; 602. Fixed part; P. Contact point between the leg and the ground; F. Pressure load; M. Moment; f. Reaction force; f1. Vertical upward component force; f2. Horizontal inward component force; S. Rotation tendency. Specific implementation mode

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0035] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] It should be noted that when an element is referred to as being "fixed to", "placed with", "provided with", "equipped with", "set on", "arranged on", or "connected to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0037] It should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Please refer to Figures 1 to 9 for a better understanding of the specific structure and principle of the present utility model. A compressive structure for a large-span tent is applied to the lateral and longitudinal supports of a large-span frame structure tent, and includes a skeleton 1, a connecting skeleton 2, and a middle column 3;

[0039] As Figures 1 to 3 shown, the number of the middle columns 3 is at least 2, and they are columnar structures, and pressure-bearing parts 301 are arranged at both the upper and lower ends thereof;

[0040] The number of the skeletons 1 is at least 6, and they are all rod-shaped structures. The first ends of 3 of the skeletons 1 are detachably connected to 1 of the middle columns 3 respectively, and the first ends of the other 3 skeletons 1 are detachably connected to another middle column 3 respectively, and the end faces of the first ends of each of the skeletons 1 abut against the edges of the corresponding pressure-bearing parts 301;

[0041] The connecting skeleton 2 is a rod-shaped structure, and its two ends are detachably connected to 2 of the middle columns 3 respectively.

[0042] It should be noted that the pressure-bearing parts 301 are preferably fixed to the upper and lower ends of the middle columns 3 by welding or screw connection.

[0043] It should be noted that the number of the skeletons 1 can be increased to 18; 9 skeletons 1 can be connected to each middle column 3 along the circumferential direction to form a semi-circular frame; the two middle columns 3 are connected by the connecting skeleton 2 to connect the two semi-circular frames to form an oval tent frame, so as to realize the expansion of the large-span tent.

[0044] It should be noted that the two ends of the connecting skeleton 2 are preferably detachably connected to the middle columns 3 by a locking pin structure; other structures can also be used for connection as long as they are convenient for disassembly and installation.

[0045] In specific implementation, the present utility model is provided with the middle columns 3, which can provide a middle connection point for a plurality of skeletons 1 and connecting skeletons 2, so that the connection of the tent is more stable; the present utility model is provided with the middle columns 3 and the pressure-bearing parts 301, and the support strength of the tent is increased through the middle columns 3 and the pressure-bearing parts 301 when the tent is subjected to a vertical pressure load; by adopting this structural method, there is no need to arrange additional support structures in the tent or increase the size of the support structures, thus solving the problems of increasing the number of tent components, reducing the internal space, increasing the material consumption, and increasing the overall weight of the tent while increasing the compressive support stability of the tent; the skeletons 1 are provided to provide more stable support for the tent in the horizontal and vertical directions; the connecting skeleton 2 is provided to realize an increase in the span of the tent; the two ends of the connecting skeleton 2 are detachably connected to the middle columns 3, and whether to install the connecting skeleton 2 to expand the span of the tent can be flexibly selected according to the actual coverage area requirements.

[0046] In an embodiment provided by the present utility model, as Figure 4 , Figure 5 shown, a first connecting portion 302 is disposed on the columnar end face of each middle column 3; the first end of each framework 1 is detachably connected to the middle column 3 through the first connecting portion 302.

[0047] It should be noted that the first connecting portion 302 is preferably fixed at the corresponding position of the middle column 3 by welding; the first connecting portion 302 of the present utility model is preferably a connecting block welded on the middle column 3, and the framework 1 is detachably fixed on the connecting block by screws.

[0048] In specific implementation, the first connecting portion 302 can stably and firmly fix and connect the framework 1 and the middle column 3, and can be disassembled, which is convenient for the unfolding and folding of the tent.

[0049] In an embodiment, a second connecting portion 303 is further disposed on the columnar end face of each middle column 3; both ends of the connecting framework 2 are detachably connected to 2 middle columns 3 through the second connecting portion 303 respectively.

[0050] It should be noted that the second connecting portion 303 preferably uses a locking pin structure to detachably fix the connecting framework 2 on the middle column 3; the present utility model preferably uses a double locking pin structure.

[0051] In specific implementation, the second connecting portion 303 can stably and firmly fix and connect the connecting framework 2 and the middle column 3, and can be conveniently disassembled and installed, which is more convenient for the unfolding and folding work of the tent.

[0052] In an embodiment, as Figure 2 shown, the framework 1 includes an upper support rod 101, a lower support rod 102 and a plurality of inclined connecting rods 4; the inclined connecting rods 4 are obliquely arranged between the upper support rod 101 and the lower support rod 102, one end is fixedly connected to the upper support rod 101, and the other end is fixedly connected to the lower support rod 102.

[0053] It should be noted that a plurality of inclined connecting rods 4 are all preferably fixed between the upper support rod 101 and the lower support rod 102 by welding.

[0054] In specific implementation, the inclined connecting rods 4 can increase the strength of the framework 1 and effectively improve the stability of the tent.

[0055] In an embodiment provided by the present utility model, as Figure 2As shown, the connecting framework 2 includes an upper connecting support rod 201, a lower connecting support rod 202, and a plurality of the inclined connecting rods 4; the inclined connecting rods 4 are obliquely arranged between the upper connecting support rod 201 and the lower connecting support rod 202, with one end fixedly connected to the upper connecting support rod 201 and the other end fixedly connected to the lower connecting support rod 202.

[0056] It should be noted that a plurality of inclined connecting rods 4 are preferably fixed between the upper connecting support rod 201 and the lower connecting support rod 202 by welding.

[0057] In specific implementation, the inclined connecting rods 4 can increase the strength of the connecting framework 2 and effectively improve the stability of the tent.

[0058] In one embodiment, as Figure 2 shown, straight connecting rods 5 are vertically arranged between the upper support rod 101 and the lower support rod 102 and between the upper connecting support rod 201 and the lower connecting support rod 202.

[0059] It should be noted that the straight connecting rods 5 are preferably fixed between the upper support rod 101 and the lower support rod 102 and between the upper connecting support rod 201 and the lower connecting support rod 202 by welding.

[0060] In specific implementation, the straight connecting rods 5 can increase the strength of the framework 1 and the connecting framework 2 and effectively improve the stability of the tent.

[0061] In one embodiment provided by the present utility model, the pressure-bearing part 301 is in a disc-shaped structure.

[0062] It should be noted that the pressure-bearing part 301 preferably adopts a disc-shaped component. A through hole is provided in the middle of the pressure-bearing part 301 installed at the upper end of the middle column 3, and it is sleeved on the middle column 3 and fixedly connected by welding; there is no through hole in the middle of the pressure-bearing part 301 installed at the lower end of the middle column 3, and its upper end surface is fixedly connected to the lower end surface of the middle column 3 by welding.

[0063] In specific implementation, the pressure-bearing part 301 adopting a disc-shaped structure can make its own force more uniform when supporting a plurality of frameworks 1 and effectively improve the support strength.

[0064] In one embodiment, as Figure 1 shown, a leg 6 is hingedly connected to the second end of each framework 1.

[0065] It should be noted that when the tent is folded up, the leg 6 can be folded towards the side of the framework 1; when the tent is unfolded, the leg 6 automatically unfolds to a position perpendicular to the framework 1 under the action of gravity.

[0066] In specific implementation, the leg 6 can stably support the tent on the ground; by adopting a hinged connection, it can be folded up when the tent is folded, reducing the occupied transportation space.

[0067] In one embodiment provided by the present utility model, as Figure 2 , Figure 3 shown, a telescopic rod 601 is installed between each of the skeletons 1 and the corresponding legs 6; the telescopic rod 601 is a telescopic structure, one end of which is hinged to the skeleton 1, the other end of which is hinged to the leg 6, and a fixing part 602 for restricting its telescopic length is arranged in the middle.

[0068] It should be noted that the telescopic rod 601 is preferably two telescopic connecting rods, one end of one connecting rod extends into the interior of the other connecting rod; a fixing part 602 is arranged between the two connecting rods; the fixing part 602 is preferably a common locking method, and the two connecting rods can be fixed at corresponding lengths; when the tent is in the unfolded state, after the leg 6 is completely perpendicular to the ground under the action of gravity, the fixing part 602 is locked, and the two connecting rods can be fixed at corresponding lengths; when in the folded state, after the leg 6 is retracted, the fixing part 602 is locked to prevent the leg 6 from unfolding by itself.

[0069] In specific implementation, the telescopic rod 601 is provided, and the leg 6 can be stably fixed at a corresponding position to prevent the leg 6 from swinging randomly.

[0070] As Figures 6 to 9 shown, the principle of the compression-resistant structure provided by the present utility model is:

[0071] For a large-span tent, the most important factor causing the support frame to collapse downward is the vertical pressure load F received by the tent skeleton 1. This vertical pressure load usually comes from the pressure of rain and snow on the tent. The pressure loads of rain and snow on the tent are basically evenly distributed on the top of the tent. For the convenience of understanding and observation, the uniform pressure loads are combined into a pressure load acting on the middle part. F in the figure is the combined external vertical pressure load.

[0072] As Figure 6 shown, in a tent without a compression-resistant structure, there is no middle column 3 and pressure-bearing part 301 between the two side skeletons 1, but they are directly fixedly connected (usually by welding or screw connection). The received vertical pressure load F will exert a downward pressure on the connection point of the two side skeletons 1. This pressure will form a moment M on the two side skeletons 1 with respect to the contact point P of the respective legs 6 with the ground. This moment M causes both side skeletons 1 to have a rotational tendency S obliquely downward with the contact point P of the leg 6 with the ground as the center. Under the action of this rotational tendency S, the connection point of the two side skeletons 1 will be deformed due to the lack of additional support structure, resulting in the overall frame collapsing downward, that is, the top of the tent will sag. If the sagging situation is too frequent or severe, the frame will have irreversible bending deformation and even break. Figure 7The connection skeleton 2 structure is added. Without a compressive structure, the same consequences will occur as those of Figure 6 which will not be elaborated here.

[0073] As Figure 8 shown, in a tent frame with a compressive structure, when the two side skeletons 1 generate a rotational tendency S, the first end of the left side skeleton 1 will have a rightward movement tendency, and the first end of the right side skeleton 1 will have a leftward movement tendency, that is, the two side skeletons 1 apply a reaction force f along the direction of the skeleton 1 towards the middle position. The reaction force f can be decomposed into a vertically upward component force f1 and a horizontally inward component force f2. The vertically upward component force f1 balances and offsets the vertical pressure load; due to the presence of the middle column 3 and the bearing part, the horizontally inward component force f2 acts on the middle column 3 and the bearing part, and the left and right component forces f2 balance and offset each other. Figure 9 The connection skeleton 2 is added in Figure 8 which has the same principle as

[0074] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0075] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A compressive structure for a large-span tent, which is applied to the lateral and longitudinal supports of a large-span frame structure tent, and is characterized in that, It includes a framework, connecting frameworks and middle columns; The number of the middle columns is at least 2, and they are all columnar structures, and pressure-bearing parts are arranged at both the upper and lower ends thereof; The number of the frameworks is at least 6, and they are all rod-shaped structures. The first ends of 3 of the frameworks are detachably connected to 1 of the middle columns respectively, and the first ends of the other 3 frameworks are detachably connected to another middle column respectively, and the end faces of the first ends of each of the frameworks abut against the edges of the corresponding pressure-bearing parts; The connecting framework is a rod-shaped structure, and its two ends are detachably connected to 2 of the middle columns respectively.

2. The compressive structure of the large-span tent according to claim 1, characterized in that, A first connecting part is arranged on the columnar end face of each of the middle columns; the first ends of each of the frameworks are detachably connected to the middle columns through the first connecting parts.

3. The compressive structure of the large-span tent according to claim 2, characterized in that, A second connecting part is further arranged on the columnar end face of each of the middle columns; the two ends of the connecting framework are detachably connected to 2 of the middle columns respectively through the second connecting parts.

4. The compressive structure of the large-span tent according to claim 1, characterized in that, The framework includes an upper support rod, a lower support rod and a plurality of inclined connecting rods; the inclined connecting rods are obliquely arranged between the upper support rod and the lower support rod, one end is fixedly connected to the upper support rod, and the other end is fixedly connected to the lower support rod.

5. The compressive structure of the large-span tent according to claim 4, characterized in that, The connecting framework includes an upper connecting support rod, a lower connecting support rod and a plurality of the inclined connecting rods; the inclined connecting rods are obliquely arranged between the upper connecting support rod and the lower connecting support rod, one end is fixedly connected to the upper connecting support rod, and the other end is fixedly connected to the lower connecting support rod.

6. The compressive structure of the large-span tent according to claim 5, characterized in that, Straight connecting rods are vertically arranged between the upper support rod and the lower support rod and between the upper connecting support rod and the lower connecting support rod.

7. The compressive structure of the large-span tent according to claim 1, characterized in that, The pressure-bearing part is a disc-shaped structure.

8. The compressive structure of the large-span tent according to claim 1, characterized in that, A leg is hingedly connected to the second end of each of the frameworks.

9. The compressive structure of the large-span tent according to claim 8, characterized in that, A telescopic rod is installed between each of the frameworks and the corresponding leg; the telescopic rod is a telescopic structure, one end is hingedly connected to the framework, the other end is hingedly connected to the leg, and a fixing part for restricting its telescopic length is arranged in the middle.

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