A folding tent frame

Abstract

A kind of folding tent frame, including several support rod assemblies arranged at corner, it is connected by several groups of peripheral folding rod assemblies between support rod assembly, corner movable hinge seat for connecting peripheral folding rod assembly is movably arranged on support rod assembly, peripheral folding rod assembly folds or when being unfolded, it drives corner movable hinge seat to move up and down on support rod assembly, first locking mechanism is arranged on corner movable hinge seat, first locking mechanism includes first locking rod assembly, first locking seat and first elastic piece, first locking seat is fixed on corner movable hinge seat, first elastic piece is arranged between first locking rod assembly and first locking seat.The folding tent frame of the utility model by setting first locking mechanism, first locking mechanism includes first locking rod assembly, first locking seat and first elastic piece, corner movable hinge seat can be locked or unlocked, the structure makes that corner movable hinge seat does not need to hold pull ring when adjusting, so that operation is more convenient, improve the experience of user.

Description

Technical Field

[0001] This utility model relates to the field of tent technology, and in particular to a folding tent frame. Background Technology

[0002] Chinese Patent Document No. CN105971390A, published on September 28, 2016, discloses a user-friendly tent frame, comprising a support assembly, crossbeam assemblies, diagonal beam assemblies, and a support assembly. The support assembly comprises three or four or more sets, with two sets of crossbeam assemblies connected end-to-end between adjacent support assemblies. The connection between these two sets of crossbeam assemblies is via diagonal beam assemblies to a central support assembly. Each support assembly includes a vertical tube and a core tube. The core tube is slidably fitted inside the vertical tube. Each crossbeam assembly is connected to an adjusting and locking device that slides on the vertical tube. This adjusting and locking device includes a locking body and a locking mechanism. The locking body is slidably fitted onto the vertical tube, which has a locking hole. The locking mechanism is inserted into or disengaged from the locking hole to lock or unlock the sliding of the locking body relative to the vertical tube. The locking mechanism of the tent frame's adjustment and locking device locks and unlocks through a spring-loaded locking hole. When the pull ring is pulled, the pull ring causes the pull rod to disengage from the locking hole, thereby unlocking the locking body and allowing it to slide relative to the upright tube. This allows the adjustment of the locking device to adjust the opening range of the tent frame. However, when the pull ring is released, the spring force causes the pull rod to move towards the locking hole. Therefore, the pull ring must be held down during adjustment, making operation inconvenient.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this invention is to provide a folding tent frame that is simple in structure, easy to operate, stable and reliable, provides a good user experience, and is highly practical, so as to overcome the shortcomings of the prior art.

[0005] A folding tent frame designed for this purpose includes several support rod assemblies, which are connected by several sets of peripheral folding rod assemblies. A corner hinge is movably mounted on each support rod assembly for connecting the peripheral folding rod assemblies. When the peripheral folding rod assemblies are folded or unfolded, the corner hinge moves up and down on the support rod assembly. The key feature is that the corner hinge is equipped with a first locking mechanism, which includes a first locking rod assembly, a first locking seat, and a first elastic element. The first locking seat is fixed to the corner hinge, and the first elastic element is disposed between the first locking rod assembly and the first locking seat. The first locking rod assembly has at least two positioning positions relative to the first locking seat. When the first locking rod assembly is in the first positioning position under the elastic force of the first elastic element, the first locking rod assembly and the support rod assembly are locked together. When the first locking rod assembly is in the second positioning position under the elastic force of the first elastic element, the first locking rod assembly and the support rod assembly are unlocked and separated.

[0006] The first locking lever assembly includes a first locking lever and a first pull ring connected to each other. The first locking lever is movably mounted on a first locking seat. A first elastic element is disposed between the first locking lever and the first locking seat. The first locking seat is provided with a first unlocking groove and a first locking groove. When the first pull ring is located in the first unlocking groove, the first locking lever is locked to the support lever assembly under the elastic force of the first elastic element. When the first elastic element drives the first locking lever assembly to move in the second direction, the first pull ring is engaged in the first locking groove, so that the first locking lever assembly is locked on the first locking seat.

[0007] The support rod assembly is provided with a locking hole, and a first locking part is provided at one end of the first locking rod. Under the elastic force of the first elastic element, the first locking rod is inserted into the locking hole through the first locking part so that the first locking rod and the support rod assembly are locked together.

[0008] A pad is provided inside the corner hinge seat. The pad is located between the corner hinge seat and the support rod assembly. The pad is provided with an elastic deformation part and a positioning protrusion. The corner hinge seat is provided with a positioning hole. When the pad is inserted into the inner hole of the corner hinge seat, the protrusion interacts with the hole wall of the inner hole, causing the elastic deformation part to deform inward. When the protrusion moves to the position of the positioning hole, the elastic deformation part resets, so that the protrusion is inserted into the positioning hole, thereby positioning the pad on the inner hole of the corner hinge seat.

[0009] The pad is fitted onto the support rod assembly. The pad has a clearance opening. The first locking part is inserted into the clearance opening and the locking hole in sequence.

[0010] The support rod assembly includes a lifting rod and a support rod arranged vertically. The lifting rod is adjustable for vertical extension and retraction on the support rod. A corner hinge is arranged on the lifting rod. A mounting seat is provided on the lifting rod. A second locking mechanism is provided on the mounting seat. The second locking mechanism includes a second locking rod assembly, a second elastic element, and a second locking seat. The second locking rod assembly includes a second locking rod and a second pull ring connected to each other. The second locking rod is movably arranged on the second locking seat. The second elastic element is arranged between the second locking rod and the second locking seat. The second locking seat is fixed on the mounting seat. The second locking seat is provided with a second unlocking groove and a second locking groove. When the second pull ring is located in the second unlocking groove, the second locking rod is locked to the support rod under the elastic force of the second elastic element, so that the lifting rod is locked on the support rod; after the second locking rod assembly moves in the first direction and rotates to the corresponding position under the action of external force, the second elastic element drives the second locking rod assembly to move in the second direction, and the second pull ring is inserted into the second locking groove, so that the second locking rod assembly is locked on the second locking seat, thereby unlocking the lifting rod.

[0011] The support rod is provided with several vertically distributed adjustment holes, the lifting rod is provided with a through hole, and one end of the second locking rod is provided with a second locking part. Under the elastic force of the second elastic element, the second locking rod is inserted into the through hole and the corresponding adjustment hole in sequence through the second locking part, so that the second locking rod and the support rod are locked together.

[0012] The outer folding rod assembly includes a first folding rod and a second folding rod. The first folding rod and the second folding rod are rotatably connected at their centers and form an X shape. A corner fixed hinge seat is provided at the top of the support rod assembly. A three-link fixed hinge seat and a three-link movable hinge seat are provided between the outer folding rod assemblies. One end of the first folding rod is hinged to the three-link fixed hinge seat, and the other end of the first folding rod is hinged to the corner movable hinge seat. One end of the second folding rod is hinged to the three-link movable hinge seat, and the other end of the second folding rod is hinged to the corner fixed hinge seat.

[0013] It also includes a central strut assembly, a central fixed hinge, a central movable hinge, and a central folding rod assembly. The central strut assembly is connected to the peripheral folding rod assembly through the central folding rod assembly. The central folding rod assembly includes a third folding rod and a fourth folding rod, which are centrally rotatably connected and form an X shape. One end of the third folding rod is hinged to the three-bar fixed hinge, and the other end of the third folding rod is hinged to the central movable hinge. One end of the fourth folding rod is hinged to the three-bar movable hinge, and the other end of the fourth folding rod is hinged to the central fixed hinge. The bottom end of the central strut assembly is fixedly connected to the central movable hinge, and the central strut assembly moves vertically through the central fixed hinge.

[0014] The central strut assembly includes a telescopic rod and a connecting rod. The telescopic rod is adjustable up and down on the connecting rod. The bottom end of the connecting rod is fixedly connected to the central movable hinge seat. The telescopic rod moves up and down through the central fixed hinge seat. A third elastic element is provided between the telescopic rod and the connecting rod. When the central strut assembly moves upward, the telescopic rod moves upward relative to the connecting rod under the elastic force of the third elastic element.

[0015] The folding tent frame of this utility model features a first locking mechanism, which includes a first locking rod assembly, a first locking seat, and a first elastic element. When the first locking rod assembly is in a first positioning position under the elastic force of the first elastic element, the first locking rod assembly and the support rod assembly are locked together. When the first locking rod assembly is in a second positioning position under the elastic force of the first elastic element, the first locking rod assembly and the support rod assembly are unlocked and separated. This structure eliminates the need to pull the ring when adjusting the corner hinge, making operation more convenient and improving the user experience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the tent frame in one embodiment of the present invention.

[0017] Figure 2 for Figure 1 A magnified structural diagram at point C.

[0018] Figure 3 for Figure 1 A magnified structural diagram at point D.

[0019] Figure 4 for Figure 1 A magnified structural diagram at point E in the middle.

[0020] Figure 5 for Figure 1 A magnified structural diagram at point F in the middle.

[0021] Figure 6 This is a cross-sectional view of the assembly structure of the first locking mechanism and the lifting rod in one embodiment of the present invention.

[0022] Figure 7 for Figure 6 A magnified structural diagram of point G in the middle.

[0023] Figure 8 This is an exploded structural diagram of the lifting rod, the corner hinge seat, the pad block, and the first locking mechanism in one embodiment of the present invention.

[0024] Figure 9 This is an exploded structural diagram of the corner hinge seat and the first locking mechanism in one embodiment of the present invention.

[0025] Figure 10 This is a schematic diagram of the assembly structure of the corner hinge seat and the pad block in one embodiment of the present invention.

[0026] Figure 11 This is an exploded structural diagram of the mounting base and the second locking mechanism in one embodiment of the present invention.

[0027] Figure 12 This is a cross-sectional view of the support rod assembly in one embodiment of the present invention.

[0028] Figure 13 This is an exploded structural diagram of the lifting rod, support rod, mounting base, and second locking mechanism in one embodiment of the present invention.

[0029] Figure 14 This is a cross-sectional view of the central strut assembly in one embodiment of the present invention.

[0030] Figure 15 for Figure 12 A magnified structural diagram of point H in the middle.

[0031] Figure 16 for Figure 14 A magnified structural diagram of point I in the middle. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] See Figures 1-16 This folding tent frame includes several support rod assemblies 1 located at corners. The support rod assemblies 1 are connected by two sets of outer folding rod assemblies 2. A corner hinge 3 is movably mounted on each support rod assembly 1 for connecting the outer folding rod assemblies 2. When the outer folding rod assemblies 2 are folded or unfolded, the corner hinge 3 moves up and down on the support rod assembly 1. A first locking mechanism 4 is provided on the corner hinge 3. The first locking mechanism 4 includes a first locking rod assembly, a first locking seat 5, and a first elastic element 6. The first elastic element 6 is a spring, and the first locking seat 5 is... The first locking rod assembly is fixed to the corner hinge 3 by screws. The first elastic element 6 is located between the first locking rod assembly and the first locking seat 5. The first locking rod assembly has at least two positioning positions relative to the first locking seat 5. When the first locking rod assembly is in the first positioning position under the elastic force of the first elastic element 6, the first locking rod assembly and the support rod assembly 1 are locked together. When the first locking rod assembly is in the second positioning position under the elastic force of the first elastic element 6, the first locking rod assembly and the support rod assembly 1 are unlocked and separated, that is, the first locking rod assembly and the support rod assembly 1 do not contact each other.

[0034] The first locking rod assembly locks itself to the support rod assembly 1 under the elastic force of the first elastic element 6, so that the corner movable hinge 3 is locked on the support rod assembly 1. At this time, the corner movable hinge 3 cannot move up and down. Under the action of external force, the first locking rod assembly moves in the first direction A and rotates to the corresponding position. Then, the first elastic element 6 drives the first locking rod assembly to move in the second direction B, so that the first locking rod assembly locks on the first locking seat 5, thereby unlocking the corner movable hinge 3. At this time, the corner movable hinge 3 can move up and down.

[0035] The first locking rod assembly includes a first locking rod 7 and a first pull ring 8 connected to each other. The first locking rod 7 is movably mounted on the first locking seat 5. A first elastic member 6 is disposed between the first locking rod 7 and the first locking seat 5. The first locking seat 5 is provided with a first unlocking groove 9 and a first locking groove 10. The first unlocking groove 9 is disposed on the upper and lower sides of the first locking seat 5, and the first locking groove 10 is disposed on the left and right sides of the first locking seat 5, that is, the first unlocking groove 9 and the first locking groove 10 are perpendicular to each other. When the first pull ring 8 is located in the first unlocking groove 9 (that is, the first locking rod assembly is in the first positioning position), the first locking rod 7 is locked to the support rod assembly 1 under the elastic force of the first elastic member 6. When the first elastic member 6 drives the first locking rod assembly to move in the second direction B, the first pull ring 8 is engaged in the first locking groove 10 (that is, the first locking rod assembly is in the second positioning position), so that the first locking rod assembly is locked on the first locking seat 5. The depth of the first unlocking groove 9 is greater than the depth of the first locking groove 10, so that when the first pull ring 8 is engaged in the first locking groove 10, the first locking rod 7 cannot be inserted into the locking hole 11.

[0036] The first locking seat 5 is provided with a first mounting hole 46. The first locking rod 7 is movably mounted on the first mounting hole 46. The first locking rod 7 is provided with a first protruding ring 47. The first elastic member 6 is sleeved on the first locking rod 7 and located in the first mounting hole 46. One end of the first elastic member 6 abuts against the first protruding ring 47, and the other end abuts against the hole wall of the first mounting hole 46.

[0037] The support rod assembly 1 (lifting rod 18) is provided with locking holes 11 distributed vertically. One end of the first locking rod 7 is provided with a first locking part 12. Under the elastic force of the first elastic member 6, the first locking rod 7 is inserted into the locking hole 11 through the first locking part 12, so that the first locking rod 7 and the support rod assembly 1 (lifting rod 18) are locked together, so that the corner movable hinge 3 is locked on the support rod assembly 1 (lifting rod 18). The opening range of the tent frame can be adjusted by inserting the first locking part 12 into the locking holes 11 at different heights.

[0038] When the corner hinge 3 is unlocked, the first pull ring 8 is first pulled in the first direction A, so that the first locking rod 7 moves in the first direction A, thereby causing the first locking part 12 to disengage from the locking hole 11. At this time, the first pull ring 8 disengages from the first unlocking groove 9. Then, the first pull ring 8 is rotated 90 degrees and released. The first elastic element 6 drives the first locking rod 7 and the first pull ring 8 to move in the second direction B, so that the first pull ring 8 engages with the first locking groove 10, thereby unlocking the corner hinge 3. At this time, the corner hinge 3 can move up and down. When locking, first pull ring 8 is pulled in the first direction A to disengage it from the first locking groove 10. Then, the first pull ring 8 is rotated 90 degrees and released. The first elastic element 6 drives the first locking rod 7 and the first pull ring 8 to move in the second direction B, thereby inserting the first locking part 12 into the locking hole 11 and the first pull ring 8 into the first unlocking groove 9, so that the corner movable hinge 3 is locked on the support rod assembly 1 (lifting rod 18). At this time, the corner movable hinge 3 cannot move up and down to prevent it from moving downward due to gravity.

[0039] A pad 13 is provided inside the corner hinge 3. The pad 13 is located between the corner hinge 3 and the support rod assembly 1 (lifting rod 18). An elastic deformation part 14 is provided on the periphery of the pad 13. A positioning protrusion 15 is provided on the outer side of the elastic deformation part 14. A positioning hole 16 is provided on the periphery of the corner hinge 3. When the pad 13 is inserted into the inner hole 17 of the corner hinge 3, the protrusion 15 interacts with the hole wall of the inner hole 17, causing the elastic deformation part 14 to deform inward. When the protrusion 15 moves to the position of the positioning hole 16, the elastic deformation part 14 resets, so that the protrusion 15 is inserted into the positioning hole 16, thereby positioning the pad 13 on the inner hole 17 of the corner hinge 3. The pad 13 is made of rubber material, which can prevent the corner hinge 3 from rubbing against each other and generating noise and wear when sliding relative to the support rod assembly 1 (lifting rod 18).

[0040] The pad 13 is fitted onto the support rod assembly 1 (lifting rod 18). The pad 13 is provided with a clearance opening 30. The corner movable hinge 3 is provided with a first clearance hole 48. The first locking part 12 is inserted into the first clearance hole 48, the clearance opening 30 and the locking hole 11 in sequence.

[0041] The support rod assembly 1 includes a lifting rod 18 and a support rod 19 arranged vertically. The lifting rod 18 is adjustable vertically on the support rod 19 to adjust the height of the tent frame. The corner hinge 3 is movably mounted vertically on the lifting rod 18. A mounting base 20 is provided on the lifting rod 18. A second locking mechanism 21 is provided on the mounting base 20. The second locking mechanism 21 includes a second locking rod assembly, a second elastic element 24, and a second locking seat 25. The second elastic element 24 is a spring. The second locking rod assembly includes a second locking rod 22 and a second pull ring 23 connected to each other. The second locking rod 22 is movably mounted on the second locking seat 25. The second elastic element 24 is located between the second locking rod 22 and the second locking seat 25. The second locking seat 25 is fixed to the mounting base 20 by screws. The second locking seat 25 is provided with a second unlocking groove 26 and a second locking groove 27. The second unlocking groove 26 is located on the upper and lower sides of the second locking seat 25, and the second locking groove 27 is located on the left and right sides of the second locking seat 25, that is, the second unlocking groove 26 and the second locking groove 27 are perpendicular to each other.

[0042] When the second pull ring 23 is located in the second unlocking groove 26, the second locking rod 22 is locked to the support rod 19 under the elastic force of the second elastic member 24, so that the lifting rod 18 is locked on the support rod 19. At this time, the lifting rod 18 cannot move up and down. After the second locking rod assembly moves in the first direction A and rotates to the corresponding position under the action of external force, the second elastic member 24 drives the second locking rod assembly to move in the second direction B. The second pull ring 23 is inserted into the second locking groove 27, so that the second locking rod assembly is locked on the second locking seat 25, thereby unlocking the lifting rod 18. At this time, the lifting rod 18 can move up and down. The depth of the second unlocking groove 26 is greater than the depth of the second locking groove 27, so that when the second pull ring 23 is inserted into the second locking groove 27, the second locking rod 22 cannot be inserted into the adjustment hole 28.

[0043] The second locking seat 25 is provided with a second mounting hole 49. The second locking rod 22 is movably mounted on the second mounting hole 49. The second locking rod 22 is provided with a second protruding ring 50. The second elastic member 24 is sleeved on the second locking rod 22 and located in the second mounting hole 49. One end of the second elastic member 24 abuts against the second protruding ring 50, and the other end abuts against the hole wall of the second mounting hole 49.

[0044] The support rod 19 is provided with several vertically distributed adjustment holes 28, the lifting rod 18 is provided with a through hole 45, the mounting base 20 is provided with a second clearance hole 51, and one end of the second locking rod 22 is provided with a second locking part 29. Under the elastic force of the second elastic element 24, the second locking rod 22 is inserted into the second clearance hole 51, the through hole 45 and the corresponding adjustment hole 28 in sequence through the second locking part 29, so that the second locking rod 22 and the support rod 19 are locked together. At this time, the lifting rod 18 cannot move up and down. The height of the tent frame can be adjusted by inserting the second locking part 29 into the adjustment holes 28 of different heights.

[0045] When the lifting rod 18 is unlocked, first pull the second pull ring 23 in the first direction A, so that the second locking rod 22 moves in the first direction A, thereby causing the second locking part 29 to disengage from the adjusting hole 28. At this time, the second pull ring 23 disengages from the second unlocking groove 26. Then, rotate the second pull ring 23 90 degrees and release the second pull ring 23. The second elastic element 24 drives the second locking rod 22 and the second pull ring 23 to move in the second direction B, so that the second pull ring 23 engages in the second locking groove 27, thereby unlocking the lifting rod 18. At this time, the lifting rod 18 can be... When the lifting rod 18 is locked, first pull the second pull ring 23 in the first direction A to disengage the second pull ring 23 from the second locking groove 27. Then rotate the second pull ring 23 90 degrees and release the second pull ring 23. The second elastic element 24 drives the second locking rod 22 and the second pull ring 23 to move in the second direction B, thereby causing the second locking part 29 to be inserted into the adjusting hole 28 and the second pull ring 23 to be engaged in the second unlocking groove 26, so that the lifting rod 18 is locked on the support rod 19. At this time, the lifting rod 18 cannot move up or down.

[0046] The outer folding rod assembly 2 includes a first folding rod 31 and a second folding rod 32. The first folding rod 31 and the second folding rod 32 are rotatably connected at the center and form an X shape. The top of the support rod assembly 1 is provided with a corner fixed hinge seat 33. A three-link fixed hinge seat 34 and a three-link movable hinge seat 35 are provided between the outer folding rod assemblies 2. One end of the first folding rod 31 is hinged to the three-link fixed hinge seat 34, and the other end of the first folding rod 31 is hinged to the corner movable hinge seat 3. One end of the second folding rod 32 is hinged to the three-link movable hinge seat 35, and the other end of the second folding rod 32 is hinged to the corner fixed hinge seat 33.

[0047] It also includes a central strut assembly 36, a central fixed hinge seat 37, a central movable hinge seat 38, and a central folding rod assembly 39. The central strut assembly 36 is connected to the peripheral folding rod assembly 2 through the central folding rod assembly 39. The central folding rod assembly 39 includes a third folding rod 40 and a fourth folding rod 41. The third folding rod 40 and the fourth folding rod 41 are centrally rotatably connected and form an X shape. One end of the third folding rod 40 is hinged to the three-link fixed hinge seat 34, and the other end of the third folding rod 40 is hinged to the central movable hinge seat 38. One end of the fourth folding rod 41 is hinged to the three-link movable hinge seat 35, and the other end of the fourth folding rod 41 is hinged to the central fixed hinge seat 37. The bottom end of the central strut assembly 36 is fixedly connected to the central movable hinge seat 38, and the central strut assembly 36 moves vertically through the central fixed hinge seat 37. The central folding rod assembly 36 also includes a corner movable hinge seat 36, a corner fixed hinge seat 33, a three-link fixed hinge seat 34, a three-link movable hinge seat 35, a central fixed hinge seat 37, and a central movable hinge seat 39. The movable hinge seat 38 is provided with several hinge slots 52 that are hinged to the folding rods; the outer folding rod assembly 2 is set around the periphery of the tent frame and forms a square, while the central folding rod assembly 39 is set at the center of the tent frame and forms a cross shape; when the tent frame is folded, the first folding rod 31 and the second folding rod 32 rotate up and down to fold, the third folding rod 40 and the fourth folding rod 41 rotate up and down to fold, the corner movable hinge seat 3, the three-link movable hinge seat 35 and the central movable hinge seat 38 move downward, and the central movable hinge seat 38 drives the central support rod assembly 36 to move downward; when the tent frame is unfolded, the first folding rod 31 and the second folding rod 32 rotate up and down to unfold, the third folding rod 40 and the fourth folding rod 41 rotate up and down to unfold, the corner movable hinge seat 3, the three-link movable hinge seat 35 and the central movable hinge seat 38 move upward, and the central movable hinge seat 38 drives the central support rod assembly 36 to move upward; the folding and unfolding states of the tent frame can be referred to patent CN201495831U.

[0048] The central support rod assembly 36 includes a telescopic rod 42 and a connecting rod 43. The telescopic rod 42 is adjustable up and down on the connecting rod 43. The bottom end of the connecting rod 43 is fixedly connected to the central movable hinge seat 38. The telescopic rod 42 moves up and down through the central fixed hinge seat 37. A third elastic element 44, which is a spring, is provided between the telescopic rod 42 and the connecting rod 43. A limiting element 53 is provided at the top of the telescopic rod 42, and a limiting part 54 is provided at the top of the connecting rod 43. The upper end of the third elastic element 44 abuts against the limiting element 53, and the lower end of the third elastic element 44 abuts against the limiting part 54. When the central support rod assembly 36 moves upward, the telescopic rod 42 moves upward relative to the connecting rod 43 under the elastic force of the third elastic element 44. When the tent frame is unfolded, a canopy can be set on its top. When the telescopic rod 42 moves upward relative to the connecting rod 43, it can support the canopy. The canopy structure can be found in patent CN201495831U.

[0049] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A folding tent frame, comprising a plurality of support rod assemblies (1), the support rod assemblies (1) being connected by a plurality of sets of peripheral folding rod assemblies (2), wherein a corner hinge seat (3) for connecting the peripheral folding rod assemblies (2) is movably disposed on the support rod assembly (1), and the corner hinge seat (3) moves up and down on the support rod assembly (1) when the peripheral folding rod assembly (2) is folded or unfolded, wherein: A first locking mechanism (4) is provided on the corner hinge (3). The first locking mechanism (4) includes a first locking rod assembly, a first locking seat (5) and a first elastic element (6). The first locking seat (5) is fixed on the corner hinge (3). The first elastic element (6) is located between the first locking rod assembly and the first locking seat (5). The first locking rod assembly has at least two positioning positions relative to the first locking seat (5). When the first locking rod assembly is in the first positioning position under the elastic force of the first elastic element (6), the first locking rod assembly and the support rod assembly (1) are locked together. When the first locking rod assembly is in the second positioning position under the elastic force of the first elastic element (6), the first locking rod assembly and the support rod assembly (1) are unlocked and separated.

2. The folding tent frame according to claim 1, characterized in that: The first locking rod assembly includes a first locking rod (7) and a first pull ring (8) connected to each other. The first locking rod (7) is movably disposed on the first locking seat (5). The first elastic element (6) is disposed between the first locking rod (7) and the first locking seat (5). The first locking seat (5) is provided with a first unlocking groove (9) and a first locking groove (10). When the first pull ring (8) is located in the first unlocking groove (9), the first locking rod (7) is locked to the support rod assembly (1) under the elastic force of the first elastic element (6). When the first elastic element (6) drives the first locking rod assembly to move in the second direction (B), the first pull ring (8) is inserted into the first locking groove (10) so that the first locking rod assembly is locked on the first locking seat (5).

3. The folding tent frame according to claim 2, characterized in that: The support rod assembly (1) is provided with a locking hole (11), and the first locking rod (7) is provided with a first locking part (12) at one end. Under the elastic force of the first elastic member (6), the first locking rod (7) is inserted into the locking hole (11) through the first locking part (12) so that the first locking rod (7) and the support rod assembly (1) are locked together.

4. The folding tent frame according to claim 3, characterized in that: A pad (13) is provided inside the corner hinge (3). The pad (13) is located between the corner hinge (3) and the support rod assembly (1). An elastic deformation part (14) is provided on the pad (13). A positioning protrusion (15) is provided on the elastic deformation part (14). A positioning hole (16) is provided on the corner hinge (3). When the pad (13) is inserted into the inner hole (17) of the corner hinge (3), the protrusion (15) interacts with the hole wall of the inner hole (17) to deform the elastic deformation part (14) inward. When the protrusion (15) moves to the position of the positioning hole (16), the elastic deformation part (14) resets so that the protrusion (15) is inserted into the positioning hole (16), thereby positioning the pad (13) on the inner hole (17) of the corner hinge (3).

5. The folding tent frame according to claim 4, characterized in that: The pad (13) is fitted onto the support rod assembly (1). The pad (13) is provided with a clearance opening (30). The first locking part (12) is inserted into the clearance opening (30) and the locking hole (11) in sequence.

6. The folding tent frame according to claim 1, characterized in that: The support rod assembly (1) includes a lifting rod (18) and a support rod (19) arranged vertically. The lifting rod (18) is adjusted vertically on the support rod (19). The corner hinge seat (3) is arranged on the lifting rod (18). The lifting rod (18) is provided with a mounting seat (20). The mounting seat (20) is provided with a second locking mechanism (21). The second locking mechanism (21) includes a second locking rod assembly, a second elastic element (24), and a second locking seat (25). The second locking rod assembly includes a second locking rod (22) and a second pull ring (23) connected to each other. The second locking rod (22) is movably arranged on the second locking seat (25). The second elastic element (24) is arranged between the second locking rod (22) and the second locking seat (25). The second locking seat (25) is fixed on the mounting seat (20). The second locking seat (25) is provided with a second unlocking groove (26) and a second locking groove (27). When the second pull ring (23) is located in the second unlocking groove (26), the second locking rod (22) is locked to the support rod (19) under the elastic force of the second elastic element (24), so that the lifting rod (18) is locked on the support rod (19); after the second locking rod assembly moves in the first direction (A) and rotates to the corresponding position under the action of external force, the second elastic element (24) drives the second locking rod assembly to move in the second direction (B), and the second pull ring (23) is inserted into the second locking groove (27), so that the second locking rod assembly is locked on the second locking seat (25), thereby unlocking the lifting rod (18).

7. The folding tent frame according to claim 6, characterized in that: The support rod (19) is provided with several vertically distributed adjustment holes (28), the lifting rod (18) is provided with a through hole (45), and the second locking rod (22) is provided with a second locking part (29) at one end. Under the elastic force of the second elastic element (24), the second locking rod (22) is inserted into the through hole (45) and the corresponding adjustment hole (28) in sequence through the second locking part (29) so that the second locking rod (22) and the support rod (19) are locked together.

8. The folding tent frame according to claim 1, characterized in that: The outer folding rod assembly (2) includes a first folding rod (31) and a second folding rod (32). The first folding rod (31) and the second folding rod (32) are rotatably connected at the center and form an X shape. The top of the support rod assembly (1) is provided with a corner fixed hinge seat (33). A three-link fixed hinge seat (34) and a three-link movable hinge seat (35) are provided between the outer folding rod assemblies (2). One end of the first folding rod (31) is hinged to the three-link fixed hinge seat (34), and the other end of the first folding rod (31) is hinged to the corner movable hinge seat (3). One end of the second folding rod (32) is hinged to the three-link movable hinge seat (35), and the other end of the second folding rod (32) is hinged to the corner fixed hinge seat (33).

9. The folding tent frame according to claim 8, characterized in that: It also includes a central strut assembly (36), a central fixed hinge (37), a central movable hinge (38), and a central folding rod assembly (39). The central strut assembly (36) is connected to the peripheral folding rod assembly (2) through the central folding rod assembly (39). The central folding rod assembly (39) includes a third folding rod (40) and a fourth folding rod (41). The third folding rod (40) and the fourth folding rod (41) are centrally rotatably connected and form an X shape. One end of the third folding rod (40) is hinged to the three-link fixed hinge (34), and the other end of the third folding rod (40) is hinged to the central movable hinge (38). One end of the fourth folding rod (41) is hinged to the three-link movable hinge (35), and the other end of the fourth folding rod (41) is hinged to the central fixed hinge (37). The bottom end of the central strut assembly (36) is fixedly connected to the central movable hinge (38), and the central strut assembly (36) moves up and down through the central fixed hinge (37).

10. The folding tent frame according to claim 9, characterized in that: The central strut assembly (36) includes a telescopic rod (42) and a connecting rod (43). The telescopic rod (42) is adjusted vertically on the connecting rod (43). The bottom end of the connecting rod (43) is fixedly connected to the central movable hinge seat (38). The telescopic rod (42) moves vertically through the central fixed hinge seat (37). A third elastic element (44) is provided between the telescopic rod (42) and the connecting rod (43). When the central strut assembly (36) moves upward, the telescopic rod (42) moves upward relative to the connecting rod (43) under the elastic force of the third elastic element (44).

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