CN218092372U - Support rod and tent frame - Google Patents

Abstract

The application provides a bracing piece and tent frame, bracing piece are used for constituteing the tent frame, include: the first groove body and the second groove body are oppositely arranged on the rod body; the first groove body and the second groove body are configured to receive the end part of the X-shaped frame in a sliding connection or fixed connection mode so as to realize the sliding or fixed connection of the end part of the X-shaped frame and the supporting rod. This application embodiment through relative setting and the tip sliding connection of X type frame or fixed connection's first cell body and second cell body on the body of rod of bracing piece, realized when expanding and foling tent frame, because X type frame slides on simple structure's first cell body and second cell body for can make things convenient for the tip of X type frame to slide on the first cell body and the second cell body on the bracing piece, thereby be convenient for expand and foling tent frame.

Description

Support rod and tent frame

Technical Field

The application relates to the technical field of tents, in particular to a supporting rod and a tent frame.

Background

Present tent includes many kinds, can divide into according to structural feature: frame type tents, net type tents, inflatable tents, and the like, which are classified by use: tourism tent, relief of disaster tent and medical tent etc. wherein, medical tent for the convenience of carrying and transportation, generally design for the frame-type tent that can accomodate (can not occupy too much space after accomodating), and the structure of frame-type tent mainly includes bracing piece, supporting legs, X type frame and movable assembly etc. and the mutual effect is accomplished accomodating the tent frame between them, and the structure and the X type frame structure of bracing piece are the adaptation.

However, the existing supporting rod is made of common pipes, the bottom end of the X-shaped frame is in sliding connection with the supporting rod through the sleeve mechanism, the sleeve mechanism is complex in structure and high in processing difficulty, the surface of the supporting rod is easily abraded during sliding, and then the unfolding and folding of a tent frame are influenced.

Therefore, it is an object of the present invention to provide a support pole adapted to and slidably coupled with a simply structured X-shaped frame to facilitate unfolding and folding of a tent frame.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a bracing piece and tent frame can make bracing piece and X type frame carry out sliding connection betterly, can not influence X type frame bottom and slide with the bracing piece to be convenient for expand and fold up the tent frame.

In a first aspect, an embodiment of the present application provides a support bar, where the support bar is used to form a tent frame; the method comprises the following steps: the first groove body and the second groove body are oppositely arranged on the rod body; the first groove body and the second groove body are configured to receive the end part of the X-shaped frame in a sliding connection or fixed connection mode so as to realize the sliding or fixed connection of the end part of the X-shaped frame and the supporting rod.

The support rod is provided with the first groove body and the second groove body which are in sliding connection or fixed connection with the end part of the X-shaped frame relatively. Due to the fact that the first groove body and the second groove body are simple in structure, the end portions of the X-shaped frame can conveniently slide on the first groove body and the second groove body on the supporting rods, and therefore the tent frame can be unfolded and folded conveniently.

Optionally, the inner wall surfaces of the first and second groove bodies include a bottom surface, a first side surface, a second side surface, and a bending surface; the first side surface and the second side surface are respectively arranged on two sides of the bottom surface; the bending surface is connected with the end parts of the first side surface and the second side surface far away from the bottom surface and extends towards the direction close to the side surface opposite to the current side surface so as to form an opening between the plurality of bending surfaces.

The support rod is characterized in that the inner wall surfaces of the first groove body and the second groove body are arranged into the first side surface and the second side surface which are respectively arranged on two sides of the bottom surface, and the bending surfaces are connected with the end parts far away from the bottom surface in the first side surface and the second side surface and extend towards the side surface direction close to the current side surface to form openings between the plurality of bending surfaces. Because the first groove body and the second groove body are arranged to be of the T-shaped structure, the X-shaped frame cannot fall off when sliding on the first groove body and the second groove body.

Optionally, the first side surface and the second side surface are perpendicular to the bottom surface and the bending surface; the bending surface is configured to limit an end of the X-frame in the opening.

Above-mentioned bracing piece, because the configuration of the face of buckling is in the tip of restriction X type frame in the opening for when the tip of X type frame slided on first cell body and second cell body, the tip of X type frame can not break away from out from the opening part, thereby makes the tip of X type frame can not break away from first cell body and second cell body.

Optionally, the connecting portions of the first and second side surfaces and the bottom surface and the connecting portions of the first and second side surfaces and the bending surface include arc-shaped chamfers.

Above-mentioned support, through the connecting portion with first side and second side and bottom surface, and first side and second side and the face of buckling be connected and be provided with the arc chamfer, when making the tip of X type frame slide in first cell body and second cell body, the tip edges and corners department all around of X type frame can not take place too much friction with the arc chamfer of first cell body and second cell body, can prevent the in-process that the tip at X type frame removed at first cell body and second cell body, first cell body and second cell body pause to the card of X type frame, can reduce the frictional force between the tip of first cell body and second cell body and X type frame, thereby the tip of X type frame of being convenient for slides on first cell body and second cell body.

Optionally, the rod body is provided with a cavity extending along the extension direction of the rod body.

Above-mentioned bracing piece has along body of rod extending direction's cavity through setting up the body of rod for the bracing piece has lighter weight, thereby can the person of facilitating the use carries the bracing piece.

Optionally, the cavity comprises a first cavity and a second cavity; the first cavity is arranged below the first groove body and the second groove body; the second cavity is arranged between the first groove body and the second groove body.

Above-mentioned bracing piece, the cavity that sets up along body of rod extending direction includes first cavity and second cavity, and first cavity sets up under first cell body and second cell body, the second cavity set up in between first cell body and the second cell body. Because the cavity has been adopted in the design of bracing piece, the weight of bracing piece has been alleviateed, and set up first cell body, second cell body, first cavity and second cavity interval, avoided the bracing piece can not lead to the intensity of bracing piece not enough because of adopting the whole setting of bracing piece to the cavity, and then caused the problem of bracing piece deformation to can be under the prerequisite that alleviates bracing piece weight and improve the intensity of bracing piece and not fragile.

Optionally, the width of the first cavity is greater than the width of the second cavity.

Above-mentioned bracing piece, through setting the width of first cavity to be greater than the width of second cavity, owing to injectd the width of second cavity for the setting of first cell body and second cell body can not influenced by the second cavity.

Optionally, the body of rod edges and corners all around is provided with arc chamfer.

Above-mentioned bracing piece is provided with the arc chamfer through the body of rod edges and corners all around for the body of rod edges and corners all around can not lead to wounding user's hand because of too sharp, thereby improved the security of user when expanding or fold up the tent or when using the tent.

Optionally, the rod body is made of lightweight material by integral molding.

Above-mentioned bracing piece is made through lightweight material integrated into one piece for the bracing piece is light in weight not only, need not assemble or assemble again in the use moreover, also is the simple structure of bracing piece, thereby can utilize the bracing piece to expand or fold the tent frame conveniently.

In a second aspect, embodiments of the present application further provide a tent frame, including the support pole of any one of the above embodiments.

Above-mentioned tent frame through adopting the bracing piece of any embodiment of above-mentioned first aspect, can make the tent frame not only can be expanded or accomodate conveniently to it is also very simple structurally, thereby make the user can expand and fold the tent frame conveniently.

To sum up, the application provides a bracing piece and tent frame, and the bracing piece is used for constituteing the tent frame, includes: the first groove body and the second groove body are oppositely arranged on the rod body; the first groove body and the second groove body are configured to receive the end part of the X-shaped frame in a sliding connection or fixed connection mode so as to realize the sliding or fixed connection of the end part of the X-shaped frame and the supporting rod. This application embodiment through relative setting and the tip sliding connection of X type frame or fixed connection's first cell body and second cell body on the body of rod of bracing piece, realized when expanding and foling tent frame, because X type frame slides on simple structure's first cell body and second cell body for can make things convenient for the tip of X type frame to slide on the first cell body and the second cell body on the bracing piece, thereby be convenient for expand and foling tent frame.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a tent frame according to an embodiment of the present disclosure;

fig. 2 is a schematic overall structure diagram of a support rod according to an embodiment of the present disclosure;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a schematic structural view of the support rod according to the embodiment of the present application along a top view direction.

In the figure, 1, a tent frame; 2. a support bar; 3. an X-shaped frame; 4. a movable component; 5. supporting legs; 10. a rod body; 11. a first tank body; 12. a second tank body; 110. a bottom surface; 111. a first side surface; 1101. a groove; 112. a second side surface; 113. a bending surface; 114. an opening; 115 arc chamfering; 131. a first cavity; 132. a second cavity; 14. arc chamfering; 30. an X-shaped frame end; 301. a sliding connection seat; 302. and fixing the connecting seat.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

Referring to fig. 1, fig. 1 is a schematic structural view of a tent frame 1 according to an embodiment of the present disclosure.

The present embodiments provide a tent that may include, but is not limited to, a travel tent, a disaster relief tent, a medical tent, and the like, wherein the medical tent is generally configured as a frame tent, and the medical tent frame may include, but is not limited to, a support rod 2, an X-shaped frame 3, a lock (not shown), a movable assembly 4, a support foot 5, and the like.

The end 30 of the X-shaped frame 3 includes a sliding coupling seat 301, and the sliding coupling seat 301 slides in the groove of the support pole 2 to allow the tent frame 1 to be horizontally stored.

The support pole 2 is detachably coupled with a locking member (not shown), and when the sliding coupling holder 301 of the end portion 30 of the X-shaped frame 3 is slid to the locking member (not shown), the locking member (not shown) locks it to improve the stability of the tent frame 1 when it is unfolded.

The other end of the support bar 2 is inserted into the cavity of the support foot 5, and the support foot 5 is fixed on the ground to improve the stability of the tent frame 1 when it is unfolded for use.

The other end 31 of the X-shaped frame 3 is rotatably connected with a fixed connecting seat 302, and the fixed connecting seat 302 is detachably connected with one side of the end of the supporting rod 2.

The end of the support rod 2 is inserted into the cavity of the movable assembly 4, the other end of the movable assembly 4 is inserted into the end of another support rod, and the movable assembly comprises two rotating members (not shown) which are connected in a hinged manner to realize the longitudinal storage of the tent frame 1.

The following embodiments are provided for the convenience of explanation, and the support pole for forming the frame of the medical tent according to the embodiments of the present application is taken as an example.

Referring to fig. 2 and 3, fig. 2 is a schematic view of an overall structure of a support rod 2 according to an embodiment of the present disclosure; fig. 3 is a schematic enlarged partial view at a in fig. 2, including: the device comprises a rod body 10, a first groove body 11 and a second groove body 12 which are oppositely arranged on the rod body 10; the first and second channel bodies 11, 12 are configured to receive the end 30 of the X-shaped frame 3 in a sliding or fixed connection to achieve a sliding or fixed connection of the end 30 of the X-shaped frame 3 with the support bar.

In an embodiment, the first slot 11 and the second slot 12 are disposed along the extending direction of the rod 10, wherein the first slot 11 and the second slot 12 are symmetrically disposed, and the shape and size of the first slot 11 and the second slot 12 are the same.

For example, the roughness of the inner wall surfaces of the first tank body 11 and the second tank body 12 may be set to 0.012 to 0.1Ra, for example, may be set to: 0.05Ra, in order to reduce the friction of the end 30 of the X-shaped frame 3, so that the end 30 of the X-shaped frame 3 slides on the first tank 11 and the second tank 12.

Ra refers to a unit of measurement of surface roughness (surface roughness) of an object, and surface roughness (surface roughness) refers to unevenness with a small pitch and a minute peak and valley of a processed surface. The distance (wave distance) between two wave crests or two wave troughs is very small (below 1 mm), which belongs to microscopic geometrical shape errors, and the smaller the surface roughness, the smoother the surface.

Specifically, a first groove 11 and a second groove 12 are oppositely disposed on the rod 10, and the first groove 11 and the second groove 12 are configured to receive the end 30 of the X-shaped frame 3 in a sliding connection or a fixed connection manner, so as to realize the sliding or fixed connection between the end 30 of the X-shaped frame 3 and the support rod 2.

In the present embodiment, the first and second groove bodies 11 and 12 slidably or fixedly connected to the end 30 of the X-shaped frame 3 are oppositely disposed on the rod body 10 of the support rod 2. Due to the simple structure of the first and second troughs 11, 12, when the end 30 of the X-shaped frame 3 slides on the first and second troughs 11, 12, the end 30 of the X-shaped frame 3 can slide on the first and second troughs 11, 12 of the support rod 1 conveniently, so that the tent frame 1 can be unfolded and folded conveniently.

Optionally, referring to fig. 4, fig. 4 is a schematic structural view of the support rod 2 provided in this application along a top view direction, taking the first groove body 11 as an example: the inner wall surface of the first tank body 11 includes a bottom surface 110, a first side surface 111, a second side surface 112, and a bent surface 113; the first side surface 111 and the second side surface 112 are respectively disposed at two sides of the bottom surface 110; the bending surface 113 is connected to the end portions of the first side surface 111 and the second side surface 112 away from the bottom surface 110 and extends toward the side surface opposite to the current side surface to form an opening 114 between the plurality of bending surfaces 113.

In an embodiment, the bottom surface 110 of the first tank 11 is further provided with a groove 1101, and the row shape of the groove 1101 is matched with the draft angle of the end 30 of the X-shaped frame 3, so as to facilitate the removal of the end 30 of the X-shaped frame 3 from the first tank 11.

It will be appreciated that the second channel 12 is similar in structure to the first channel 11 and will not be described in detail herein.

In the embodiment of the present application, the openings 114 between the plurality of bending surfaces 113 are formed by arranging the inner wall surfaces of the first tank body 11 and the second tank body 12 such that the first side surface 111 and the second side surface 112 are respectively arranged on both sides of the bottom surface 110, and the bending surfaces 113 are connected to the end portions of the first side surface 111 and the second side surface 112 far from the bottom surface and extend in the direction close to the side surface facing the current side surface. The first groove body and the second groove body are arranged to be in T-shaped structures, so that the X-shaped frame cannot fall off when sliding on the first groove body and the second groove body.

Optionally, referring to fig. 4, fig. 4 is a schematic structural view of the supporting rod 2 according to the embodiment of the present disclosure along a top direction, where the first side surface 111 and the second side surface 112 are perpendicular to the bottom surface 110 and the bending surface 113; the bend 113 is configured to restrain the end 30 of the X-frame 3 in the opening 114.

It can be understood that the width of the opening 114 is smaller than the width of the bottom surface 110, when the end 30 of the X-shaped frame 3 is inserted into the first slot body 11 and the second slot body 12, since the width of the end 30 of the X-shaped frame 3 is the same as the size of the bottom surface 110, the end 30 of the X-shaped frame 3 can be limited in the first slot body 11 and the second slot body 112 because the width of the opening 114 is smaller than the width of the bottom surface 110, that is, the width of the opening 114 is smaller than the width of the end 30 of the X-shaped frame 3, and thus the end 30 of the X-shaped frame 3 can not fall off.

In the present embodiment, since the bending surface 113 is configured to limit the end 30 of the X-shaped frame 3 in the opening 114, when the end 30 of the X-shaped frame 3 slides on the first slot 11 and the second slot 12, the end 30 of the X-shaped frame 3 will not be separated from the opening 114, so that the end 30 of the X-shaped frame 3 will not be separated from the first slot 11 and the second slot 12.

Optionally, referring to fig. 4, fig. 4 is a schematic structural view of the support bar 2 along a top view direction according to an embodiment of the present disclosure, in which a connection portion between the first side surface 111 and the bottom surface 110 and a connection portion between the first side surface 111 and the bending surface 113 and the second side surface 112 include an arc-shaped chamfer 115.

Chamfering refers to machining the edges and corners of a workpiece into a certain inclined plane. The purpose of this is to remove burrs produced by machining on parts, and to facilitate the assembly of parts, and to reduce stress concentration.

For example, the angle of the arc-shaped chamfer 115 can be set according to the requirements of practical application, for example: when the peripheral edges of the end 200 of the X-frame 200 are also provided with the arc chamfers, the angle of the arc chamfers 115 needs to be set larger at this time to prevent the peripheral edges of the end 200 of the X-frame 200 from being in a loose state when sliding on the first tank 11 and the second tank 12, and when the peripheral edges of the end 200 of the X-frame 200 are not provided with chamfers, the angle of the arc chamfers 115 needs to be set smaller at this time to reduce friction between the peripheral edges of the end 200 of the X-frame 200 and the arc chamfers 115, so that the end 200 of the X-frame 200 can slide on the first tank 11 and the second tank 12, and therefore, the angle of the arc chamfers is not specifically limited here in this embodiment.

In this embodiment, the connecting portions between the first side surface 111 and the bottom surface 110 and the second side surface 112 and the bottom surface 110, and the connecting portions between the first side surface 111 and the second side surface 112 and the bending surface 113 are provided with the arc-shaped chamfers 115, so that when the end portion 30 of the X-frame 3 slides in the first slot body 11 and the second slot body 12, the peripheral corners of the end portion 30 of the X-frame 3 do not have excessive friction with the arc-shaped chamfers 115 of the first slot body 11 and the second slot body 12, so that the friction between the end portions 30 of the X-frame 3 and the first slot body 11 and the second slot body 12 can be reduced, and the end portion 30 of the X-frame 3 can slide on the first slot body 11 and the second slot body 12 conveniently.

Optionally, referring to fig. 3 and fig. 4, fig. 3 is a partially enlarged schematic view of a portion a in fig. 2, fig. 4 is a schematic view of a structure of the support rod 2 along a top view direction according to an embodiment of the present disclosure, and the rod body 10 has a cavity extending along an extending direction of the rod body.

The rod extending direction is a direction of the length of the rod, and may be understood as a direction in which the end 30 of the X-shaped frame 3 slides on the first groove 11 and the second groove 12.

In the present embodiment, the shaft body 10 is configured to have a cavity along the extending direction of the shaft body 10, so that the support rod 2 has a lighter weight, and the user can conveniently carry the support rod 2.

Optionally, referring to fig. 4, fig. 4 is a schematic structural view of the support rod 2 provided in the embodiment of the present application along a top view direction, where the cavity includes a first cavity 131 and a second cavity 132; the first cavity 131 is arranged below the first trough body 11 and the second trough body 12; the second cavity 132 is provided between the first tank 11 and the second tank 12.

For example, the length and the width of the first cavity 131 may or may not be uniform, which is determined by the strength of the support rod 2, for example: when the strength of the supporting rod 2 is poor, the length of the first cavity 131 may be set to be smaller than the width thereof, so as to increase the solid area of the supporting rod 2, that is, to increase the strength of the supporting rod 2; when the strength of the supporting rod 2 is better, the length of the first cavity 131 can be set to be greater than the width thereof, so as to reduce the weight of the supporting rod 2, thereby facilitating the user to carry the supporting rod 2; when the transverse and longitudinal stress of the supporting rod 2 is required to be consistent to prevent the supporting rod 2 from deforming in the transverse or longitudinal direction, the length of the first cavity 131 can be set to be consistent with the width, and the deformation of the supporting rod 2 caused by unbalanced transverse and longitudinal stress can be effectively avoided, so that the length of the first cavity 131 is not specifically limited in the embodiment, and the supporting rod can be flexibly set according to the strength of the supporting rod 2.

In this embodiment, the cavities disposed along the extending direction of the rod 10 include a first cavity 131 and a second cavity 132, the first cavity 131 is disposed under the first slot 11 and the second slot 12, and the second cavity 132 is disposed between the first slot 11 and the second slot 12. Because the cavity has been adopted in the design of bracing piece 2, the weight of bracing piece 2 has been alleviateed, and set up first cell body 11, second cell body 12, first cavity 131 and the spacing of second cavity 132 body, avoided bracing piece 2 can not lead to bracing piece 2's intensity not enough because adopt 2 whole settings to the cavity with the bracing piece, and then caused the problem that bracing piece 2 warp, thereby can be under the prerequisite that alleviates the weight of bracing piece 2 and improve bracing piece 2's intensity and not fragile.

Optionally, referring to fig. 4, fig. 4 is a schematic structural view of the support rod 2 provided in the embodiment of the present application along a top view direction, and a width of the first cavity 131 is greater than a width of the second cavity 132.

In the present embodiment, by setting the width of the first cavity 131 to be greater than the width of the second cavity 132, the second cavity 132 does not affect the arrangement of the first and second tanks 11 and 12 due to the limitation of the width of the second cavity 132.

Optionally, referring to fig. 4, fig. 4 is a schematic structural view of the support rod 2 provided in this embodiment of the present application along a top view direction, and the corner of the periphery of the rod body is provided with an arc-shaped chamfer 14.

In this embodiment, through being provided with arc chamfer 14 with body of rod edge angle all around for body of rod edge angle all around can not lead to wounding user's hand because of too sharp, thereby improved the security of user when expanding or fold the tent or when using the tent.

Optionally, the rod body is made of lightweight material by integral molding.

It can be understood that the supporting rod provided by the embodiment of the application is manufactured by adopting a grinding tool with the shape matched with the shape of the supporting rod during processing and manufacturing, the supporting rod does not need to be assembled or rotationally matched during actual use of the supporting rod, and a user can use the supporting rod after directly inserting the end part of the X-shaped frame into the first groove body and the second groove body of the supporting rod, so that the supporting rod is simple in structure, and the supporting rod is convenient to operate by the user.

The lightweight material is realized by using lightweight metal and non-metal materials, and mainly includes engineering plastics and various composite materials, which may include, but are not limited to, aluminum alloy, carbon fiber, glass fiber, and the like, and this embodiment is not specifically limited herein.

In this embodiment, the support rod 2 is made of a lightweight material by integral molding, so that the support rod 2 is not only light but also does not need to be assembled or assembled in the using process, i.e., the support rod 2 has a simple structure, and the tent frame 1 can be conveniently unfolded or folded by using the support rod 2.

The embodiment of the application also provides a tent frame, which comprises the support rod 2 of any one of the above embodiments.

In the embodiment, by adopting the support bar 2 of any one of the above embodiments, the tent frame 1 can be not only conveniently unfolded or stored, but also be simple in structure, so that a user can conveniently unfold and fold the tent frame 1.

The above description is only an alternative embodiment of the embodiments of the present application, but the scope of the embodiments of the present application is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the embodiments of the present application, and all the changes or substitutions should be covered by the scope of the embodiments of the present application.

Claims (10)

1. A support pole, wherein the support pole is used to form a tent frame; the method comprises the following steps:

the first groove body and the second groove body are oppositely arranged on the rod body;

the first groove body and the second groove body are configured to receive the end part of the X-shaped frame in a sliding connection or fixed connection mode so as to realize the sliding or fixed connection of the end part of the X-shaped frame and the supporting rod.

2. The support bar as claimed in claim 1, wherein the inner wall surfaces of the first and second channel bodies include a bottom surface, a first side surface, a second side surface, and a bent surface;

the first side surface and the second side surface are respectively arranged on two sides of the bottom surface;

the bending surface is connected with the end parts of the first side surface and the second side surface far away from the bottom surface and extends towards the direction close to the side surface opposite to the current side surface so as to form an opening between the plurality of bending surfaces.

3. A brace as defined in claim 2, in which the first and second side surfaces are perpendicular to the base and bending surfaces;

the bending surface is configured to limit an end of the X-frame in the opening.

4. A brace as defined in claim 2, in which the connections of the first and second sides to the bottom surface and the connections of the first and second sides to the bending surface include arcuate chamfers.

5. A support bar as set forth in claim 1, in which the shaft has a cavity extending in the direction of extension of the shaft.

6. A support bar as set forth in claim 5 in which the cavity includes a first cavity and a second cavity;

the first cavity is arranged below the first groove body and the second groove body;

the second cavity is arranged between the first groove body and the second groove body.

7. A support bar as set forth in claim 6, in which the width of the first cavity is greater than the width of the second cavity.

8. The brace as defined in claim 1, wherein the corners of the circumference of the rod body are provided with arc-shaped chamfers.

9. A support bar as set forth in claim 1, wherein said bar body is integrally formed of a lightweight material.

10. A tent frame, comprising: a support bar as claimed in any one of claims 1 to 9.

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