CN110469185B

CN110469185B - An outdoor tent that is easy to fix and nail and more stable

Info

Publication number: CN110469185B
Application number: CN201910723057.7A
Authority: CN
Inventors: 方俊; 何萍; 陈香; 孙秀凤; 方明
Original assignee: Jiangsu Xintelang Leisure Product Co ltd
Current assignee: Jiangsu Xintelang Leisure Product Co ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2021-05-04
Anticipated expiration: 2039-08-06
Also published as: CN110469185A

Abstract

The invention relates to the technical field of outdoor leisure products, and discloses a more stable outdoor tent with convenient fixing nails. The outdoor tent, which is convenient for fixing the ground nails and more stable, can drive the movable ring to move up and down by pushing the movable sleeve rod up and down. The top of the tent can be stretched open, and the strut is connected with the screw rod through the top rod, so that the strut is in a vertical state and more stable. By setting hooks at both ends of the pull rod, the pull rod can be installed between the fixed block and the connecting block. It makes the connection between the inclined rod and the strut more stable, the overall structure design of the equipment is reasonable, and the stability is stronger, which greatly improves the safety performance of the equipment. Sex is stronger.

Description

Outdoor tent convenient to fix ground nail and more stable

Technical Field

The invention relates to the technical field of outdoor leisure articles, in particular to an outdoor tent which is convenient to fix ground nails and is more stable.

Background

The tent is a sunshade and rain shelter appliance widely used in activities such as travel leisure, bathing beach rest, geological exploration camping and the like.

With the tension of work rhythm of people at present, a plurality of leisure and entertainment modes are more and more accepted by people, such as mountaineering, camping and leisure and entertainment, and people naturally think of using a tent as a temporary resting place.

A multi-stage tent frame for a dome type tent, which uses a plurality of hub members, vertical poles, horizontal poles, and lower poles, for example, as disclosed in chinese patent CN 103195291B, thereby enabling assembly of a two-to three-stage multi-stage tent, by which vertical poles, horizontal poles, and lower poles connected to each other in different directions can bear the weight of tent cloth by their elastic forces, thereby enabling use of the poles having a thickness and diameter suitable for a small-sized tent, by applying the multi-stage tent frame structure, a large-sized tent can be built without increasing the size of the poles, and in addition, a large-sized tent can be easily built and disassembled by a small number of people, and at the same time, using a general small-diameter pole advantageously contributes to reduction of production costs, but the tent frame is troublesome in terms of pin fixation, and overall structure's stability is strong inadequately for the tent is built and is needed to spend a lot of manpowers and time, and the security is also lower simultaneously, leads to the practicality of device relatively poor, unsatisfied people's demand of using, so provides a make things convenient for fixed ground nail and more stable outdoor tent to solve above-mentioned problem of proposing.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the outdoor tent which is convenient for fixing ground nails and is more stable, the outdoor tent has the advantages of being convenient for fixing the ground nails and the like, and solves the problems that the fixing of the ground nails of a tent frame is troublesome, the stability of the whole structure is not strong enough, so that much manpower and time are needed for building the tent, and meanwhile, the safety is low, so that the practicability of the device is poor, and the use requirements of people are not met.

(II) technical scheme

In order to realize the purposes of conveniently fixing the ground nail and the like, the invention provides the following technical scheme: an outdoor tent convenient for fixing ground nails and more stable comprises a connecting plate, wherein connecting shafts are fixedly arranged at the front end and the rear end of the left side and the right side of the connecting plate, inclined rods are movably arranged at the front end and the rear end of the left side and the rear end of the right side of the connecting plate respectively through the connecting shafts, a vertical rod is fixedly arranged at the bottom of the connecting plate, a fixed fixture block is fixedly arranged at the outer side of the inclined rod, fixed rotating shafts are fixedly arranged at the opposite sides of the left side and the right side of the fixed fixture block respectively, movable loop rods are movably arranged at the outer sides of the vertical rods, movable rings movably connected with the vertical rods are fixedly arranged at the tops of the movable loop rods, four movable rotating shafts are fixedly arranged at the peripheral walls of the movable rings, movable rods are movably connected between the movable rotating shafts and the fixed rotating shafts, screw rods are, the bottom of the diagonal rod is movably provided with a stay rod through a second rotating shaft, the opposite sides of the left stay rod and the right stay rod and the peripheral wall of the screw rod are fixedly provided with mounting rings, an ejector rod is movably arranged between the screw rod and the stay rod through the mounting rings, the opposite sides of the left stay rod and the right stay rod and the bottom of the mounting ring are fixedly provided with fixed blocks, the bottom of the diagonal rod and the lower end of the fixed block are fixedly provided with connecting blocks, the front surfaces of the connecting blocks and the fixed blocks are movably provided with hooks, a pull rod is fixedly connected between the two hooks, the bottom of the stay rod is fixedly provided with a first rotating shaft, the bottom of the stay rod is movably provided with a bottom rod through the first rotating shaft, the bottom of the bottom rod is fixedly provided with a bearing, the bottom of the bottom rod is movably provided with a rotating sleeve rod through the bearing, and, the utility model discloses a swivel joint, including the rotation loop bar, the bottom fixed mounting of installation loop bar has the screw thread nail, the inner diapire fixed mounting of installation loop bar has one end to run through and extend to rotate the loop bar inner chamber and with the connecting rod that rotates loop bar swing joint, the top fixed mounting of connecting rod has the stopper, the bottom movable mounting of rotating the loop bar has quantity to be five bull sticks, the bottom fixed mounting of sill bar has quantity to be five connecting rods, the bottom of sill bar has the snap-fastener with bull stick swing joint through connecting rod movable mounting.

Preferably, the top of the mounting loop bar is provided with a clamping groove, the clamping groove is matched with the rotating loop bar, and the ejector rod and the support rod are vertically mounted at ninety degrees.

Preferably, the top of the movable loop bar is provided with a through hole, the through hole is matched with the vertical bar, and an included angle between the vertical bar and the oblique bar is an acute angle.

Preferably, the bottom of the vertical rod is provided with threaded holes, the threaded holes are matched with the threaded rods, and the number of the ejector rods is four.

Preferably, the bearing and the top of rotating the loop bar have all been seted up the perforation, and perforation and sill bar looks adaptation, the contained angle between movable rod and the down tube is the acute angle.

Preferably, the quantity of block board is five, and five block boards are the symmetric distribution with the central line that rotates the loop bar, the dwang is ninety degrees vertical installation with rotating the loop bar.

Preferably, the round holes are formed in the front faces of the connecting block and the fixing block and are matched with the hooks, and the clamping plate is trapezoidal.

Preferably, the left side and the right side are opposite, clamping holes are formed in one side of the mounting ring, the clamping holes are matched with the ejector rods, and the top of the connecting plate is arc-shaped.

Preferably, the quantity of screw nail is four, and four screw nails are symmetrical equidistance distribution with the perpendicular bisector of vertical pole, the quantity of collar is eight.

(III) advantageous effects

Compared with the prior art, the invention provides the outdoor tent which is convenient for fixing ground nails and is more stable, and the outdoor tent has the following beneficial effects:

1. the outdoor tent which is convenient for fixing the ground nail and is more stable pushes the movable loop bar up and down by arranging the movable circular ring, the movable ring can be driven to move up and down, so that the movable rod rotates by taking the fixed rotating shaft as an axis, when the movable rod rotates upwards by taking the fixed shaft as the axis, the movable rod gradually tends to be in a horizontal state to support the two inclined rods, the tent top can be unfolded, then the screw rod is screwed into the vertical rod, the stay rod is connected with the screw rod through the ejector rod, so that the stay rod is in a vertical state and is more stable, the hooks are arranged at the two ends of the pull rod, the pull rod can be arranged between the fixed block and the connecting block, so that the connection between the diagonal rod and the stay rod is more stable, the whole structure of the equipment is designed reasonably, the stability is stronger, the safety performance of the equipment is greatly improved, meanwhile, the building and the dismounting are very convenient and fast, the labor and the time are saved, and the practicability of the device is higher.

2. The outdoor tent which is convenient for fixing the ground nail and is more stable firstly positions the four support leg positions of the tent by arranging the threaded nail, arranges the bottom of the threaded nail at the positioning position and rotates the threaded nail, the threaded nail and the mounting sleeve rod can be integrally fixed on the ground, the five rotating rods can rotate in the same direction by rotating the rotating sleeve rod, the clamping plate is pulled to rotate, the size of the round hole formed by combining the five clamping plates can be controlled, the rotating sleeve rod can be inserted into the bottom of the mounting sleeve rod, then the rotating sleeve rod is rotated to shrink the round hole in the middle of the five clamping plates, the limiting block can be clamped into the rotating sleeve rod, and the mounting sleeve rod can be connected with the bottom rod, so that the device achieves the effect of conveniently fixing ground nails, the tent is more convenient to build, meanwhile, the device is stronger in stability, the safety of equipment is greatly improved, and the use requirements of people are met.

Drawings

Fig. 1 is a schematic view of an outdoor tent structure according to the present invention, which is convenient for fixing ground nails and is more stable;

fig. 2 is an enlarged view of a portion a of fig. 1 of an outdoor tent according to the present invention, which is convenient to fix ground nails and is more stable;

FIG. 3 is an overall structure view of a screw for outdoor tent according to the present invention, which is convenient for fixing a ground nail and is more stable;

fig. 4 is a schematic view of the internal structure of a rotating loop bar of an outdoor tent according to the present invention, which is convenient for fixing ground nails and is more stable.

In the figure: 1 sill bar, 2 first pivot, 3 fixed blocks, 4 vaulting poles, 5 second pivots, 6 connecting blocks, 7 fixed fixture blocks, 8 down tube, 9 screw rods, 10 vertical poles, 11 activity loop bars, 12 connecting axles, 13 connecting plates, 14 activity rings, 15 activity pivots, 16 movable rods, 17 fixed pivots, 18 ejector pins, 19 couples, 20 pull rods, 21 mount rings, 22 dwang, 23 mount loop bars, 24 connecting rods, 25 screw nails, 26 rotation loop bars, 27 bearings, 28 stoppers, 29 dwang, 30 snap-on plates, 31 connecting rods.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an outdoor tent convenient for fixing ground nails and more stable comprises a connecting plate 13, connecting shafts 12 are fixedly installed at the front and rear ends of the left and right sides of the connecting plate 13, oblique rods 8 are movably installed at the front and rear ends of the left and right sides of the connecting plate 13 through the connecting shafts 12, vertical rods 10 are fixedly installed at the bottom of the connecting plate 13, threaded holes are formed in the bottom of the vertical rods 10 and are matched with screw rods 9, four top rods 18 are provided, fixing blocks 7 are fixedly installed at the outer sides of the oblique rods 8, fixing rotating shafts 17 are fixedly installed at the opposite sides of the left and right fixing blocks 7, movable sleeve rods 11 are movably installed at the outer sides of the vertical rods 10, when the tent needs to be disassembled, the rotating sleeve rods 26 are rotated to separate the bottom rods 1 from the threaded nails 25, then the screw rods 9 are rotated and the screw rods 9 are disassembled to separate the, then the hook 19 is moved out of the connecting block 6 and the fixed block 3, the pull rod 20 is disassembled, then the movable loop bar 11 is pushed down, the inclined bar 8 can be pulled back to the vertical state, the tent is stored, the tent can be folded and stored through the first rotating shaft 2 and the second rotating shaft 5, the equipment achieves the effect of convenient assembly and disassembly, the tent is convenient to carry and meets the use requirements of people, the top of the movable loop bar 11 is provided with a through hole which is matched with the vertical bar 10, the included angle between the vertical bar 10 and the inclined bar 8 is an acute angle, the top of the movable loop bar 11 is fixedly provided with a movable ring 14 movably connected with the vertical bar 10, the movable loop bar 11 is pushed up and down through the arrangement of the movable ring 14, the movable ring 14 can be driven to move up and down, the movable bar 16 rotates by taking the fixed rotating shaft 17 as an axis, when the movable bar 16 rotates upwards by taking the fixed shaft 17 as an axis, the movable bar 16 gradually, the tent is propped up by two inclined rods 8, so that the tent top can be propped up, then the screw rods 9 are screwed into the vertical rods 10, the supporting rods 4 are connected with the screw rods 9 through the ejector rods 18, so that the supporting rods 4 are in a vertical state and are more stable, the pull rods 20 can be arranged between the connecting blocks 6 and the fixed blocks 3 by arranging the hooks 19 at the two ends of the pull rods 20, so that the inclined rods 8 and the supporting rods 4 are more stably connected, the whole structure design of the equipment is reasonable, the stability is higher, the safety performance of the equipment is greatly improved, the construction and the disassembly are very convenient at the same time, the labor and the time are saved, the practicability of the device is higher, the four movable rotating shafts 15 are fixedly arranged on the peripheral wall of the movable ring 14, the movable rods 16 are movably connected between the movable rotating shafts 15 and the fixed rotating shafts 17, the screw rods 9 are movably arranged at the bottoms of the vertical rods 10, the second rotating shafts, the bottom of the diagonal rod 8 is movably provided with a stay rod 4 through a second rotating shaft 5, one side opposite to the left stay rod 4 and the right stay rod 4 are fixedly provided with a mounting ring 21, one side opposite to the left mounting ring 21 and the right mounting ring 21 are respectively provided with a clamping hole, the clamping holes are matched with the ejector rods 18, the top of the connecting plate 13 is arc-shaped, the ejector rods 18 are movably arranged between the screw rods 9 and the stay rods 4 through the mounting rings 21, the fixed blocks 3 are fixedly arranged at one side opposite to the left stay rod 4 and the right stay rod 4 and positioned at the bottom of the mounting ring 21, the bottom of the diagonal rod 8 is fixedly provided with a connecting block 6 positioned at the lower end of the fixed block 7, the connecting block 6 and the front of the fixed block 3 are respectively provided with a round hole, the round holes are matched with the hooks 19, the clamping plate 30 is trapezoidal, the hooks 19 are movably arranged at the front of the connecting block 6 and the, the bottom of the stay bar 4 is movably provided with a bottom bar 1 through a first rotating shaft 2, the bottom of the bottom bar 1 is fixedly provided with a bearing 27, the top of the bearing 27 and the top of a rotating sleeve bar 26 are both provided with through holes, the through holes are matched with the bottom bar 1, the included angle between the movable bar 16 and an inclined bar 8 is an acute angle, the bottom of the bottom bar 1 is movably provided with the rotating sleeve bar 26 through the bearing 27, the peripheral wall of the rotating sleeve bar 26 is fixedly provided with four rotating bars 22, the outer side of the rotating bars 22 is provided with an anti-skidding sleeve, the anti-skidding sleeve is a rubber anti-skidding sleeve, and has the characteristics of strong pressure resistance, good wear resistance, impact resistance, water resistance, skid resistance and the like, the rotating bars 22 can be rotated more conveniently by using the rubber anti-skidding sleeve, the rotating bars 22 can be effectively prevented from being rusted and inconvenient to rotate due to rainwater, the equipment can, the top of the installation loop bar 23 is provided with a clamping groove which is matched with the rotation loop bar 26, the top rod 18 and the support rod 4 are vertically installed at ninety degrees, the bottom of the installation loop bar 23 is fixedly provided with a screw 25, the four support leg positions of the tent are firstly positioned by arranging the screw 25, the bottom of the screw 25 is arranged at the positioning position and rotating the screw 25, the screw 25 and the installation loop bar 23 can be integrally fixed on the ground, the five rotating rods 29 rotate in the same direction by rotating the rotation loop bar 26, the clamping plates 30 are pulled to rotate, the size of a round hole formed by combining the five clamping plates 30 can be controlled, the rotation loop bar 26 can be inserted into the bottom of the installation loop bar 23, then the rotation loop bar 26 is rotated, the round hole in the middle of the five clamping plates 30 is shrunk, the limiting block 28 can be clamped into the rotation loop bar 26, the installation loop bar 23 can be connected with the bottom rod 1, and the equipment can achieve the effect of conveniently fixing ground nails, the tent is more convenient to build, meanwhile, the stability of the device is stronger, the safety of equipment is greatly improved, and the use requirement of people is more met, the number of the screw nails 25 is four, the four screw nails 25 are symmetrically and equidistantly distributed by the perpendicular bisector of the vertical rod 10, the number of the mounting rings 21 is eight, the inner bottom wall of the mounting loop bar 23 is fixedly provided with a connecting rod 24, one end of the connecting rod 24 penetrates through and extends to the inner cavity of the rotating loop bar 26 and is movably connected with the rotating loop bar 26, the top of the connecting rod 24 is fixedly provided with a limiting block 28, the bottom of the rotating loop bar 26 is movably provided with five rotating rods 29, the bottom of the bottom bar 1 is fixedly provided with five connecting rods 31, the bottom of the bottom bar 1 is movably provided with clamping plates 30 movably connected with the rotating rods 29 through the connecting rods 31, the number of the clamping plates 30 is five, and the five clamping plates 30 are symmetrically distributed by the central line of, the rotating rod 22 is mounted ninety degrees perpendicular to the rotating sleeve rod 26.

When using, only need to change over to the setpoint with the screw thread nail 25 into, then rotate and rotate loop bar 26, can control five block boards 30 middle sizes of making up into the round hole, can be connected installation loop bar 23 and sill bar 1 easily, make equipment reach the effect of convenient fixed ground nail for it is more convenient that the tent is built, and the stability of device is stronger simultaneously, has improved the security of equipment greatly, more satisfies the demand that people used.

In conclusion, the outdoor tent convenient to fix ground nails and more stable is provided with the movable ring 14, the movable ring 14 can be driven to move up and down by pushing the movable sleeve rod 11 up and down, so that the movable rod 16 rotates by taking the fixed rotating shaft 17 as an axis, when the movable rod 16 rotates upwards by taking the fixed shaft 17 as an axis, the movable rod 16 gradually tends to be in a horizontal state, the two inclined rods 8 are supported, the tent top can be supported, then the screw rod 9 is screwed into the vertical rod 10, the support rod 4 is connected with the screw rod 9 through the ejector rod 18, so that the support rod 4 is in a vertical state and is more stable, the pull rod 20 can be arranged between the connecting block 6 and the fixed block 3 by arranging the hooks 19 at the two ends of the pull rod 20, so that the inclined rods 8 and the support rod 4 are more stably connected, the overall structural design of the equipment is reasonable, the stability is stronger, the safety performance of the equipment is greatly improved, and the construction and the disassembly are, manpower and time are saved, and the practicability of the device is higher.

Moreover, by arranging the screw 25, firstly, the positions of the four support legs of the tent are positioned, the bottom of the screw 25 is arranged at the positioning position and the screw 25 is rotated, so that the screw 25 and the installation loop bar 23 can be integrally fixed on the ground, the five rotating rods 29 are rotated in the same direction by rotating the rotating loop bar 26, the clamping plate 30 is pulled to rotate, the size of the circular hole formed by combining the five clamping plates 30 can be controlled, the rotating loop bar 26 can be inserted into the bottom of the installation loop bar 23, then the rotating loop bar 26 is rotated, the circular hole in the five clamping plates 30 is shrunk, the limiting block 28 can be clamped into the rotating loop bar 26, the installation loop bar 23 can be connected with the bottom bar 1, the equipment achieves the effect of conveniently fixing ground nails, so that the tent is more convenient to build, meanwhile, the stability of the device is stronger, the safety of the equipment is greatly improved, and the use requirements of people are further met, the fixed comparatively trouble of ground nail of having solved tent frame, and overall structure's stability is strong inadequately for the tent is built and is needed to spend a lot of manpower and time, and the security is also lower simultaneously, leads to the practicality of device relatively poor, does not satisfy the problem of the demand that people used.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A more stable outdoor tent that is convenient for fixing ground nails, comprising a connecting plate (13), characterized in that: connecting shafts (12) are fixedly installed at the front and rear ends of the left and right sides of the connecting plate (13), The front and rear ends of the left and right sides of the connecting plate (13) are movably installed with inclined rods (8) through the connecting shaft (12), and the bottom of the connecting plate (13) is fixedly installed with vertical rods (10), so A fixed clamping block (7) is fixedly installed on the outer side of the inclined rod (8), and a fixed rotating shaft (17) is fixedly installed on the opposite sides of the left and right fixed clamping blocks (7). A movable sleeve rod (11) is movably installed on the outer side of the movable sleeve rod (11), and a movable ring (14) movably connected to the vertical rod (10) is fixedly installed on the top of the movable sleeve rod (11). ) is fixedly installed with four movable rotating shafts (15), and a movable rod (16) is movably connected between the movable rotating shaft (15) and the fixed rotating shaft (17), and the vertical rod (10) A screw (9) is movably installed at the bottom of the inclined rod (8), a second rotating shaft (5) is fixedly installed at the bottom of the inclined rod (8), and a strut is movably installed at the bottom of the inclined rod (8) through the second rotating shaft (5). (4), a mounting ring (21) is fixedly installed on the opposite side of the left and right support rods (4) and the outer peripheral wall of the screw rod (9), between the screw rod (9) and the support rod (4) A top rod (18) is movably installed through the mounting ring (21), and a fixing block (3) is fixedly mounted on the opposite sides of the left and right support rods (4) and at the bottom of the mounting ring (21). A connecting block (6) is fixedly installed at the bottom of the inclined rod (8) and located at the lower end of the fixing block (7), and a hook (19) is movably installed on the front of the connecting block (6) and the fixing block (3). A pull rod (20) is fixedly connected between the two hooks (19), a first rotating shaft (2) is fixedly mounted on the bottom of the strut (4), and the bottom of the strut (4) passes through the first rotating shaft (2) A bottom rod (1) is movably installed, a bearing (27) is fixedly installed at the bottom of the bottom rod (1), and a rotating sleeve rod ( 26), the outer peripheral wall of the rotating sleeve rod (26) is fixedly installed with four rotating rods (22), the outer side of the rotating sleeve rod (26) is movably installed with a mounting sleeve rod (23), the The bottom of the installation sleeve rod (23) is fixedly installed with screw nails (25), and the inner bottom wall of the installation sleeve rod (23) is fixedly installed with one end that penetrates and extends to the inner cavity of the rotating sleeve rod (26) and is connected with the rotating sleeve rod. (26) An articulating connecting rod (24), the top of the connecting rod (24) is fixedly installed with a limit block (28), and the bottom of the rotating sleeve rod (26) is movably installed with five rotating rods (29), the bottom of the bottom rod (1) is fixedly installed with five connecting rods (31), and the bottom of the bottom rod (1) is movably installed with the rotating rod (29) through the connecting rod (31). ) articulating clip plate (30).

2. A more stable outdoor tent according to claim 1, characterized in that: the top of the installation sleeve rod (23) is provided with a clamping slot, and the clamping groove is connected to the rotating sleeve rod (26). ), the top rod (18) and the strut (4) are installed vertically at ninety degrees.

3. A more stable outdoor tent according to claim 1, characterized in that: the top of the movable sleeve rod (11) is provided with a through hole, and the through hole is connected to the vertical rod (10). ), the included angle between the vertical rod (10) and the oblique rod (8) is an acute angle.

4. A more stable outdoor tent according to claim 1, characterized in that: the bottom of the vertical rod (10) is provided with a threaded hole, and the threaded hole is in the same relationship with the screw (9). Adaptation, the number of the ejector rods (18) is four.

5. A more stable outdoor tent according to claim 1, characterized in that: the top of the bearing (27) and the rotating sleeve rod (26) are provided with perforations, and the perforations and the bottom are provided with perforations. The rod (1) is adapted, and the included angle between the movable rod (16) and the inclined rod (8) is an acute angle.

6. A more stable outdoor tent according to claim 1, characterized in that: the number of said engaging plates (30) is five, and the five engaging plates (30) are used for rotating sleeves The center lines of the rods (26) are symmetrically distributed, and the rotating rods (22) and the rotating sleeve rods (26) are vertically installed at ninety degrees.

7. A more stable outdoor tent according to claim 1, wherein the connecting block (6) and the front surface of the fixing block (3) are provided with circular holes, and the circular holes Matching with the hook (19), the engaging plate (30) is trapezoidal.

8. The more stable outdoor tent according to claim 1, characterized in that: the opposite sides of the left and right mounting rings (21) are provided with clamping holes, and the clamping holes are connected with The top rod (18) is adapted, and the top of the connecting plate (13) is arc-shaped.