A portable fence gate structure for municipal parks

Abstract

The present invention relates to the technical field of municipal equipment, and discloses a portable fence door structure for a municipal park, including a gravity locking mechanism and a magnetic pole pressure control mechanism. The portable fence door structure for a municipal park can open the fence door frame by pulling the limit pin rod upward when opening, and when closing, the repulsive force between permanent magnets produces a pressure change on the buffer, thereby changing the clamping force of the elastic air film on the limit pin rod, so that when the fence door frame is at a closed angle, the limit pin rod generates an automatic closing function under the action of its own gravity, thereby improving the automation degree of the device during use and reducing the complexity of its operation steps.

Description

Technical Field

[0001] The invention relates to the technical field of municipal equipment, in particular to a portable fence door structure for a municipal park. Background Art

[0002] In municipal parks, fences are set up in many areas. When using the fences, they need to be used together with fence gates. The existing fence gates are troublesome to open or close, time-consuming and labor-intensive, and cannot meet people's needs.

[0003] To this end, the Chinese patent application with the publication number of "CN103711426A" discloses "a portable fence door structure". When opening, the handle is lifted upward by hand, the upper lock block is separated from the upper lock cavity, the handle drives the connecting rod to move upward, the connecting rod drives the rotating shaft to rotate, the rotating shaft drives the lower lock block to rotate until the lower lock block is separated from the lower lock cavity, and the revolving door can be opened at this time. After opening, the handle is slid downward, and the handle and the lower lock block are reset. When closing, the handle is lifted upward by hand so that the horizontal height of the upper lock block is higher than the upper lock cavity, the handle drives the connecting rod to move upward, the connecting rod drives the rotating shaft to rotate, the rotating shaft drives the lower lock block to rotate, and the lower lock block rotates to the cavity on the left side of the door frame, and the revolving door is rotated so that the upper lock block is opposite to the upper lock cavity, the handle is slid downward, the upper lock block is stuck in the upper lock cavity, and the lower lock block rotates to the lower lock cavity, and the revolving door is closed at this time.

[0004] From the above description, it can be known that when opening and closing the revolving door, the handle needs to be lifted upwards, and when closing, the lower locking block and the lower locking cavity need to be manually calibrated before closing, resulting in a low degree of automation and complex operating steps during use. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a portable fence gate structure for a municipal park. When opening, the fence door frame can be opened by pulling the limit pin rod upwards. When closing, the repulsive force between the permanent magnets produces a pressure change on the buffer solution, thereby changing the clamping force of the elastic air film on the limit pin rod, so that when the fence door frame is at the closing angle, the limit pin rod can automatically close under the action of its own gravity, thereby improving the degree of automation of the device during use, reducing the complexity of its operating steps, and solving the above-mentioned technical problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a portable fence gate structure for a municipal park, comprising a fence door frame, two No. 1 fixing sleeves connected to a rod body on one side of the fence door frame through bearings, and a No. 1 shaft body fixing hole arranged in the No. 1 fixing sleeve and capable of being fixedly connected to an external fence rod, and also comprising a gravity locking mechanism, wherein a No. 1 longitudinal hollow shell fixedly installed around the rod body on the other side of the fence door frame, an elastic air film embedded in the No. 1 longitudinal hollow shell and capable of producing a deformation phenomenon, a bottom limit sleeve structure capable of being fixedly installed around the external fence rod and located directly below the No. 1 longitudinal hollow shell, and an insertion pin body capable of locking the No. 1 longitudinal hollow shell and the bottom limit sleeve structure; and a magnetic pole type pressure control mechanism, wherein a No. 2 longitudinal hollow shell fixedly installed on one side of the No. 1 longitudinal hollow shell, a No. 1 piston plate filled in the No. 2 longitudinal hollow shell and capable of producing a liquid pressure effect on the outer circumferential surface of the elastic air film, and an upper permanent magnet that moves upward and reduces the liquid pressure on the elastic air film after being subjected to a repulsive force.

[0007] Preferably, the gravity locking mechanism includes a No. 2 fixing sleeve and a No. 3 fixing sleeve, the interior of the No. 2 fixing sleeve is provided with a No. 2 shaft body fixing hole that can be fixedly installed on the periphery of the rod body on one side of the fence door frame, the interior of the No. 3 fixing sleeve is provided with a No. 3 shaft body fixing hole that can be fixed on the periphery of the external fence rod, one side of the No. 2 fixing sleeve is provided with a No. 1 longitudinal hollow shell integrally connected thereto, the interior of the No. 1 longitudinal hollow shell is provided with a No. 1 rod body through-hole with upper and lower end faces being open, the No. 1 longitudinal hollow shell is provided with an annular liquid flow cavity on the periphery of the middle area of ​​the No. 1 rod body through-hole, the circumferential part of the No. 1 longitudinal hollow shell is provided with a No. 1 liquid flow hole connecting the external space and the annular liquid flow cavity, and the No. 1 longitudinal hollow shell is provided with a No. 1 liquid flow hole connecting the external space and the annular liquid flow cavity. An elastic air film is embedded in the edge at the intersection of the annular liquid flow cavity and the No. 1 rod body perforation, and a pullable limit pin is inserted into the No. 1 longitudinal hollow shell at the inside of the No. 1 rod body perforation, and a limit movable plate with an integral structure therewith is provided at the bottom end of the limit pin, and a lower embedded disk with an integral structure therewith is provided on one side of the No. 3 fixed sleeve, and a lower permanent magnet is embedded in the upper end surface of the lower embedded sleeve, and a bottom limit sleeve structure with an integral structure therewith and located directly below the limit movable plate is provided on one side of the lower embedded sleeve, and a limit insertion hole with both upper and lower ends being open is provided inside the bottom limit sleeve structure, and an insertion pin with an integral structure therewith and capable of being inserted into the limit insertion hole is provided at the bottom end of the limit movable plate.

[0008] Preferably, the structural radius of the limit pin rod body is smaller than the structural radius of the No. 1 rod body through hole, and the structural radius of the insertion pin body is smaller than the structural radius of the limit insertion hole.

[0009] Preferably, the elastic air membrane is embedded in the interior of the first longitudinal hollow shell in a stretched state, and the elastic strength of the elastic air membrane is sufficient to produce a driving effect on the buffer located at the periphery thereof.

[0010] Preferably, the magnetic pole type pressure control mechanism comprises a No. 2 longitudinal hollow shell, the interior of the No. 2 longitudinal hollow shell is provided with a No. 1 component active cavity, the No. 2 longitudinal hollow shell is provided with a liquid limiting flow cavity at the bottom end of the No. 1 component active cavity, the structural radius of the liquid limiting flow cavity is smaller than the structural radius of the No. 1 component active cavity, the bottom end of the No. 2 longitudinal hollow shell is provided with a No. 2 rod body through hole connecting the space below it and the liquid limiting flow cavity, the top of the No. 2 longitudinal hollow shell is provided with a gas compensation hole connecting the space above it and the top of the No. 1 component active cavity, and the circumferential surface of the No. 2 longitudinal hollow shell is provided with a component docking connection connecting the liquid limiting flow cavity and the No. 1 liquid flow hole. Channel, and the component docking channel is fixedly connected with the circumferential surface of the No. 1 longitudinal hollow shell, the No. 2 longitudinal hollow shell is provided with a No. 1 piston plate which can move axially along the active cavity of the No. 1 component inside the active cavity of the No. 1 component, a No. 1 coil spring in a compressed state is fixedly installed on the upper end surface of the No. 1 piston plate, a longitudinal telescopic rod which passes through the liquid limiting flow cavity and the perforation of the No. 2 rod body is fixedly installed on the bottom end of the No. 1 piston plate, an upper embedded disk body is fixedly installed on the bottom end of the longitudinal telescopic rod, and an upper permanent magnet is embedded on the lower surface of the upper embedded disk body, and the No. 2 longitudinal hollow shell is filled with a buffer solution in a closed area between the lower surface of the No. 1 piston plate and the outer circumferential surface of the elastic air film.

[0011] Preferably, the magnetic poles on the lower surface of the upper permanent magnet are the same as the magnetic poles on the upper surface of the lower permanent magnet.

[0012] Preferably, when the upper permanent magnet and the lower permanent magnet are in an upward and downward symmetrical relationship, the repulsive force between the two is sufficient to move the No. 1 piston plate upward, thereby relieving the liquid pressure of the buffer solution on the elastic air film; when the upper permanent magnet and the lower permanent magnet are in a misaligned relationship, the No. 1 coil spring makes the pressure of the buffer solution on the elastic air film sufficient to wrap the elastic air film and clamp it around the periphery of the rod body of the limit pin, and make the limit pin in a stationary state.

[0013] Preferably, it also includes an elastic closing mechanism, which is internally provided with a No. 3 longitudinal hollow shell embedded in the ground and located directly below the fence door frame, a No. 2 piston plate placed inside the No. 3 longitudinal hollow shell and capable of longitudinal movement, a pull rope that moves with the No. 2 piston plate and can reset the fence door frame to a closed state, and a No. 2 coil spring that causes the No. 2 piston plate to move downward.

[0014] Preferably, the elastic closing mechanism includes a No. 3 longitudinal hollow shell, the bottom of the No. 3 longitudinal hollow shell is provided with a bottom fixing plate with an integral structure therewith, the No. 3 longitudinal hollow shell is provided with a top flush plate with an integral structure therewith on a circumferential surface close to the top thereof, the interior of the No. 3 longitudinal hollow shell is provided with a No. 2 component movable cavity, the bottom of the No. 2 component movable cavity is provided with a medium limiting flow cavity, the top of the No. 3 longitudinal hollow shell is provided with a rope through hole connecting the space above it and the No. 2 component movable cavity, the interior of the No. 3 longitudinal hollow shell is provided with a connecting hole connecting its upper surface and the medium limiting flow cavity No. 1 medium flow hole and No. 2 medium flow hole, a medium check valve is installed inside the No. 1 medium flow hole, a No. 3 longitudinal hollow shell is provided with a No. 2 piston plate which can move longitudinally along the No. 2 moving cavity of the No. 2 component, the upper end surface of the No. 2 piston plate is embedded with a pull rope which passes through the rope hole, a No. 2 coil spring in a compressed state is placed on the outer periphery of the rope body located inside the No. 2 moving cavity of the component, a No. 4 fixing sleeve is fixedly installed on the top end of the pull rope, and a No. 4 shaft body fixing hole which is fixedly installed in the middle area of ​​the pull rod body at the bottom of the fence door frame is arranged inside the No. 4 fixing sleeve.

[0015] Preferably, the aperture of the No. 1 medium flow hole is larger than the aperture of the No. 2 medium flow hole, and the medium one-way valve can allow the medium to flow from top to bottom.

[0016] Compared with the prior art, the present invention provides a portable fence gate structure for a municipal park, which has the following beneficial effects:

[0017] 1. When opening, pull the limit pin rod upward to open the fence door frame. When closing, the repulsive force between the permanent magnets will cause pressure changes on the buffer, thereby changing the clamping force of the elastic air film on the limit pin rod, so that when the fence door frame is at the closing angle, the limit pin rod will automatically close under the action of its own gravity, thereby improving the degree of automation of the device during use and reducing the complexity of its operating steps.

[0018] 2. By setting up a gravity locking mechanism, pulling the limit pin rod upwards will cause the insertion pin body to withdraw from the limit insertion hole, so that the fence door frame can be opened normally. After opening, by increasing the wrapping and clamping force of the elastic air film on the limit pin rod, the insertion pin body is kept higher than the top of the limit insertion hole, so that when the fence door frame is closed, the insertion pin body will not collide with the outer wall of the bottom limit sleeve structure, thereby having the function of resetting the fence door frame to the closed angle.

[0019] 3. By setting up a magnetic pole type pressure control mechanism, when the fence door frame is pushed open, the buffer generates pressure on the elastic air film, so that the elastic air film is wrapped and clamped on the periphery of the rod body of the limit pin rod, forcing the limit pin rod to be fixed. When the fence door frame is in a fully closed angle, the upper permanent magnet and the lower permanent magnet present an upper and lower symmetrical relationship, thereby releasing the clamping force of the elastic air film on the limit pin rod. Under the action of gravity, the insertion pin body is inserted into the limit insertion hole, thereby realizing the automatic locking function. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A perspective view of the present invention;

[0021] Figure 2 It is a vertical sectional view of the present invention;

[0022] Figure 3 It is a three-dimensional cross-sectional view of the present invention in the horizontal direction;

[0023] Figure 4 It is a three-dimensional diagram of the gravity locking mechanism of the present invention;

[0024] Figure 5 It is a three-dimensional cross-sectional view of the gravity locking mechanism of the present invention;

[0025] Figure 6 It is a three-dimensional cross-sectional view of the magnetic pole type pressure control mechanism in the present invention;

[0026] Figure 7 is a three-dimensional diagram of the elastic closing mechanism of the present invention;

[0027] Figure 8 It is a three-dimensional cross-sectional view of the elastic closing mechanism in the present invention.

[0028] Among them: 1. Fence door frame; 2. No. 1 fixing sleeve; 3. No. 1 shaft fixing hole; 4. Gravity locking mechanism; 41. No. 1 longitudinal hollow shell; 42. No. 2 fixing sleeve; 43. No. 2 shaft fixing hole; 44. No. 3 fixing sleeve; 45. No. 3 shaft fixing hole; 46. Lower embedded disc; 47. Lower permanent magnet; 48. Bottom limit sleeve structure; 49. Limit insertion hole; 410. No. 1 rod body perforation; 411. Annular liquid flow cavity; 412. Elastic air film; 413. No. 1 liquid flow hole; 414. Limit pin rod; 415. Limit movable plate; 416. Insert pin body; 5. Magnetic pole pressure control mechanism; 51. No. 2 longitudinal hollow shell; 52. No. 1 component movable cavity; 53 , liquid limiting flow chamber; 54, component docking channel; 55, No. 2 rod body perforation; 56, gas compensation hole; 57, No. 1 piston plate; 58, No. 1 coil spring; 59, longitudinal telescopic rod; 510, upper embedded disk; 511, upper permanent magnet; 6, elastic closing mechanism; 61, No. 3 longitudinal hollow shell; 62, bottom fixed plate; 63, top flush plate; 64, No. 2 component active chamber; 65, medium limiting flow chamber; 66, No. 1 medium flow hole; 67, No. 2 medium flow hole; 68, rope perforation; 69, medium one-way valve; 610, No. 2 piston plate; 611, pull rope; 612, No. 4 fixing sleeve; 613, No. 4 shaft body fixing hole; 614, No. 2 coil spring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1 , Figure 2 and Figure 3 A portable fence gate structure for a municipal park includes a fence door frame 1, two No. 1 fixing sleeves 2 connected to a rod body on one side of the fence door frame 1 through bearings, and a No. 1 shaft fixing hole 3 arranged in the No. 1 fixing sleeve 2 and capable of being fixedly connected to an external fence rod. The components are fixedly installed as required, and a No. 3 longitudinal hollow shell 61 is buried underground, while a top flush plate 63 is kept flush with the ground.

[0031] To achieve the lifting and opening function of the fence door frame 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5, it is necessary to set up a gravity locking mechanism 4, which is internally provided with a No. 1 longitudinal hollow shell 41 fixedly installed around the rod body on the other side of the fence door frame 1, an elastic air membrane 412 embedded in the No. 1 longitudinal hollow shell 41 and capable of producing deformation, a bottom limit sleeve structure 48 that can be fixedly installed around the external fence rod and is located directly below the No. 1 longitudinal hollow shell 41, and an insertion pin body 416 that can lock the No. 1 longitudinal hollow shell 41 and the bottom limit sleeve structure 48. Pulling the limit pin rod 414 upward will cause the insertion pin body 416 to withdraw from the limit insertion hole 49, so that the fence door frame 1 can be opened normally. After opening, by increasing the wrapping and clamping force of the elastic air membrane 412 on the limit pin rod 414, the insertion pin body 416 is kept higher than the top of the limit insertion hole 49, so that when the fence door frame 1 is closed, the insertion pin body 416 will not collide with the outer wall of the bottom limit sleeve structure 48, thereby having the function of resetting the fence door frame 1 to the closed angle.

[0032] For the specific structure of the gravity locking mechanism 4, please refer to Figure 4 and Figure 5, including a No. 2 fixing sleeve 42 and a No. 3 fixing sleeve 44, wherein the No. 2 fixing sleeve 42 is provided with a No. 2 shaft body fixing hole 43 which can be fixedly installed on the periphery of the rod body on one side of the fence door frame 1, and the No. 3 fixing sleeve 44 is provided with a No. 3 shaft body fixing hole 45 which can be fixed on the periphery of the external fence rod, and one side of the No. 2 fixing sleeve 42 is provided with a No. 1 longitudinal hollow shell 41 which is integrally connected thereto, and the No. 1 longitudinal hollow shell 41 is provided with a No. 1 rod body through hole 410 with upper and lower end surfaces being open, and the No. 1 longitudinal hollow shell 41 is located at the No. 1 An annular liquid flow cavity 411 is arranged at the periphery of the middle area of ​​the rod body through hole 410, and a No. 1 liquid flow hole 413 connecting the external space and the annular liquid flow cavity 411 is arranged at the circumferential part of the No. 1 longitudinal hollow shell 41, and an elastic air film 412 is embedded in the No. 1 longitudinal hollow shell 41 at the intersection of the annular liquid flow cavity 411 and the No. 1 rod body through hole 410 in a sealed edge manner. In order to have the buffer pressure reduction function, the elastic air film 412 needs to be embedded in the interior of the No. 1 longitudinal hollow shell 41 in a stretched state, and the elasticity of the elastic air film 412 The strength is sufficient to produce a driving effect on the buffer located on its periphery. The No. 1 longitudinal hollow shell 41 is inserted with a pullable limit pin 414 inside the No. 1 rod body through hole 410. The bottom end of the limit pin 414 is provided with a limit movable plate 415 with an integral structure therewith. One side of the No. 3 fixed sleeve 44 is provided with a lower embedded disk 46 with an integral structure therewith. The upper end surface of the lower embedded disk 46 is embedded with a lower permanent magnet 47. One side of the lower embedded disk 46 is provided with a structure integral with it and located directly below the limit movable plate 415. A bottom limit sleeve structure 48 is provided inside the bottom limit sleeve structure 48 with a limit insertion hole 49 with both the upper and lower ends being open, and an insertion pin body 416 which is an integral structure with the limit movable plate 415 and can be inserted into the limit insertion hole 49 is provided at the bottom end. In order to achieve the movement effect of the limit pin rod 414 and the insertion pin body 416 under the action of gravity, it is necessary to make the structural radius of the limit pin rod 414 smaller than the structural radius of the No. 1 rod body through hole 410, and the structural radius of the insertion pin body 416 smaller than the structural radius of the limit insertion hole 49.

[0033] To enable the automatic locking function, refer to Figure 1 , Figure 2 , Figure 3 and Figure 6, it is necessary to set up a magnetic pole type pressure control mechanism 5, which is provided with a second longitudinal hollow shell 51 fixedly installed on one side of the first longitudinal hollow shell 41, a first piston plate 57 filled in the second longitudinal hollow shell 51 and capable of generating a liquid pressure effect on the outer circumferential surface of the elastic air film 412, and an upper permanent magnet 511 that moves upward and reduces the liquid pressure on the elastic air film 412 after being subjected to a repulsive force. When the fence door frame 1 is pushed open, the upper permanent magnet 511 and the lower permanent magnet 47 are in a dislocated state. Under the influence of the first coil spring 58, the first piston plate 57 moves downward, and the buffer is pressed into the annular liquid In the flow cavity 411, at the same time, the buffer solution generates pressure on the elastic air film 412, so that the elastic air film 412 is wrapped and clamped around the outer periphery of the rod body of the limit pin 414, forcing the limit pin 414 to be fixed. When the fence door frame 1 is at a fully closed angle, the upper permanent magnet 511 and the lower permanent magnet 47 are in an upper and lower symmetrical relationship. At this time, the repulsive force between the two will cause the upper permanent magnet 511 to drive the No. 1 piston plate 57 to move upward, thereby releasing the clamping force of the elastic air film 412 on the limit pin 414. Under the action of gravity, the insertion pin body 416 is inserted into the limit insertion hole 49, thereby realizing the automatic locking function.

[0034] For the specific structure of the magnetic pole type pressure control mechanism 5, please refer to Figure 6, comprising a second longitudinal hollow shell 51, wherein the interior of the second longitudinal hollow shell 51 is provided with a first component active cavity 52, wherein the second longitudinal hollow shell 51 is provided with a liquid limiting flow cavity 53 at the bottom end of the first component active cavity 52, wherein the structural radius of the liquid limiting flow cavity 53 is smaller than the structural radius of the first component active cavity 52, wherein the bottom end of the second longitudinal hollow shell 51 is provided with a second rod body through hole 55 connecting the space below it and the liquid limiting flow cavity 53, and the top end of the second longitudinal hollow shell 51 is provided with a second rod body through hole 55 connecting the space above it and the liquid limiting flow cavity 53. The gas compensation hole 56 at the top of the active cavity 52 of the first component is arranged on the circumferential surface of the second longitudinal hollow shell 51, and the component docking channel 54 connecting the liquid limiting flow cavity 53 and the first liquid flow hole 413 is arranged, and the component docking channel 54 is fixedly connected to the circumferential surface of the first longitudinal hollow shell 41, and the second longitudinal hollow shell 51 is provided with a first piston plate 57 which can move axially along the active cavity 52 of the first component in the interior of the active cavity 52 of the first component, and the upper end surface of the first piston plate 57 is fixedly installed with a A No. 1 coil spring 58, a longitudinal telescopic rod 59 penetrating the liquid limiting flow cavity 53 and the No. 2 rod body through-hole 55 is fixedly installed at the bottom end of the No. 1 piston plate 57, an upper embedded disc 510 is fixedly installed at the bottom end of the longitudinal telescopic rod 59, and an upper permanent magnet 511 is embedded in the lower surface of the upper embedded disc 510. The No. 2 longitudinal hollow shell 51 is filled with a buffer in the closed area between the lower surface of the No. 1 piston plate 57 and the outer circumferential surface of the elastic gas membrane 412. In order to achieve the necessary locking function, it is necessary to make the lower surface of the upper permanent magnet 511 The magnetic poles on the surface are the same as the magnetic poles on the upper surface of the lower permanent magnet 47. When the upper permanent magnet 511 and the lower permanent magnet 47 are in an upper and lower symmetrical relationship, the repulsive force between the two is sufficient to move the No. 1 piston plate 57 upward, thereby relieving the liquid pressure of the buffer on the elastic air film 412. When the upper permanent magnet 511 and the lower permanent magnet 47 are in a misaligned relationship, the No. 1 coil spring 58 makes the pressure of the buffer on the elastic air film 412 sufficient to wrap and clamp the elastic air film 412 around the outer periphery of the rod body of the limit pin 414, and make the limit pin 414 in a stationary state.

[0035] To achieve the automatic closing and resetting function of the fence door frame 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8, it is necessary to set up an elastic closing mechanism 6, which is provided with a third longitudinal hollow shell 61 embedded in the ground and located directly below the fence door frame 1, a second piston plate 610 placed inside the third longitudinal hollow shell 61 and capable of longitudinal movement, a pull rope 611 that moves with the second piston plate 610 and can reset the fence door frame 1 to a closed state, and a second coil spring 614 that causes the second piston plate 610 to move downward. When the fence door frame 1 is pushed, the fence door frame 1 will drive the fourth fixing sleeve 612 to move and extend the pull rope 611, while the second piston plate 610 moves upward, and the air below the second piston plate 610 is opened. The time increases and the pressure decreases. At this time, the external gas will enter the active chamber 64 of the No. 2 component in time through the No. 1 medium flow hole 66 and the No. 2 medium flow hole 67, so that the negative pressure is relieved and the fence door frame 1 can be quickly pushed open. After the thrust on the fence door frame 1 is released, under the action of the No. 2 coil spring 614, the No. 2 piston plate 610 is reset downward. At the same time, the pull rope 611 pulls the fence door frame 1 to reset to the closed angle. In this process, since only the No. 2 medium flow hole 67 realizes gas flow, the descending process of the No. 2 piston plate 610 can be delayed, thereby reducing the closing speed of the fence door frame 1 and realizing the function of slow closing.

[0036] For the specific structure of the elastic closing mechanism 6, please refer to Figure 7 and Figure 8, comprising a No. 3 longitudinal hollow shell 61, the bottom of the No. 3 longitudinal hollow shell 61 is provided with a bottom fixing plate 62 of an integral structure therewith, the No. 3 longitudinal hollow shell 61 is provided with a top flush plate 63 of an integral structure therewith on a circumferential surface near the top thereof, the interior of the No. 3 longitudinal hollow shell 61 is provided with a No. 2 component active cavity 64, the bottom of the No. 2 component active cavity 64 is provided with a medium limiting flow cavity 65, the top of the No. 3 longitudinal hollow shell 61 is provided with a wire rope through hole 68 connecting the space above it and the No. 2 component active cavity 64, the interior of the No. 3 longitudinal hollow shell 61 is provided with a No. 1 medium flow hole 66 and a No. 2 medium flow hole 67 connecting its upper surface and the medium limiting flow cavity 65, and the interior of the No. 1 medium flow hole 66 is installed with a medium check valve 6 9. The No. 3 longitudinal hollow shell 61 is provided with a No. 2 piston plate 610 which can move longitudinally along the No. 2 movable chamber 64 of the No. 2 component, and the upper end surface of the No. 2 piston plate 610 is embedded with a pull rope 611 which passes through the rope through hole 68, and the pull rope 611 is provided with a No. 2 coil spring 614 in a compressed state on the outer periphery of the rope body located in the No. 2 movable chamber 64 of the No. 2 component, and a No. 4 fixing sleeve 612 is fixedly installed on the top of the pull rope 611, and the No. 4 fixing sleeve 612 is provided with a No. 4 shaft fixing hole 613 which is fixedly installed in the middle area of ​​the pull rod body at the bottom of the fence door frame 1, the aperture of the No. 1 medium flow hole 66 is larger than the aperture of the No. 2 medium flow hole 67, and the medium one-way valve 69 can allow the medium to flow from top to bottom.

[0037] The specific working principle of the present invention is to fix the component installation requirements and bury the third longitudinal hollow shell 61 underground, while the top flush plate 63 is kept flush with the ground;

[0038] Pulling the limit pin rod 414 upward will make the insertion pin body 416 withdraw from the limit insertion hole 49, so that the fence door frame 1 can be opened normally. When the fence door frame 1 is pushed open, the upper permanent magnet 511 and the lower permanent magnet 47 are in a misaligned state. Under the influence of the No. 1 coil spring 58, the No. 1 piston plate 57 moves downward, and the buffer is pressed into the annular liquid flow chamber 411. At the same time, the buffer exerts pressure on the elastic air film 412, so that the elastic air film 412 is wrapped and clamped in the limit position. The outer periphery of the rod body of the pin rod 414 forces the limit pin rod 414 to be fixed. At the same time, the fence door frame 1 will drive the No. 4 fixing sleeve 612 to move and make the pull rope 611 extend. At the same time, the No. 2 piston plate 610 moves upward, the space below the No. 2 piston plate 610 increases, and the pressure decreases. At this time, the external gas will enter the No. 2 component active chamber 64 in time through the No. 1 medium flow hole 66 and the No. 2 medium flow hole 67, so that the negative pressure is relieved and the fence door frame 1 can be quickly pushed open;

[0039] When the thrust on the fence door frame 1 is released, under the action of the No. 2 coil spring 614, the No. 2 piston plate 610 is reset downward, and at the same time, the pull rope 611 pulls the fence door frame 1 to reset to the closed angle; the upper permanent magnet 511 and the lower permanent magnet 47 are in an upper and lower symmetrical relationship. At this time, the repulsive force between the two will cause the upper permanent magnet 511 to drive the No. 1 piston plate 57 to move upward, thereby releasing the clamping force of the elastic air film 412 on the limit pin 414, and under the action of gravity, the insertion pin body 416 is inserted into the limit insertion hole 49, thereby realizing the automatic locking function.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable fence gate structure for a municipal park, comprising a fence gate frame (1), two No. 1 fixing sleeves (2) connected to a rod body on one side of the fence gate frame (1) through a bearing, and a No. 1 shaft body fixing hole (3) arranged in the No. 1 fixing sleeve (2) and capable of being fixedly connected to an external fence rod, characterized in that: Also includes, A gravity locking mechanism (4) is provided with a first longitudinal hollow shell (41) fixedly mounted around the rod body on the other side of the fence door frame (1), an elastic air membrane (412) embedded in the first longitudinal hollow shell (41) and capable of generating a deformation phenomenon, a bottom limit sleeve structure (48) that can be fixedly mounted around the external fence rod and located directly below the first longitudinal hollow shell (41), and an insertion pin body (416) that can lock the first longitudinal hollow shell (41) and the bottom limit sleeve structure (48); and a magnetic pole type pressure control mechanism (5), wherein a second longitudinal hollow shell (51) is fixedly mounted on one side of the first longitudinal hollow shell (41), a first piston plate (57) filled in the second longitudinal hollow shell (51) and capable of generating a liquid pressure effect on the outer circumferential surface of the elastic air film (412), and an upper permanent magnet (511) that moves upward and reduces the liquid pressure on the elastic air film (412) after being subjected to a repulsive force; The gravity locking mechanism (4) comprises a No. 2 fixing sleeve (42) and a No. 3 fixing sleeve (44); the No. 2 fixing sleeve (42) is provided with a No. 2 shaft fixing hole (43) capable of being fixedly mounted on the periphery of a rod body on one side of a fence door frame (1); the No. 3 fixing sleeve (44) is provided with a No. 3 shaft fixing hole (45) capable of being fixed on the periphery of an external fence rod; one side of the No. 2 fixing sleeve (42) is provided with a No. 1 longitudinal hollow shell (41) integrally connected thereto; the No. 1 longitudinal hollow shell (41 ... shaft fixing hole (45) capable of being fixed on the periphery of an external fence rod; the No. 2 fixing sleeve (42) is provided with a No. 2 shaft fixing hole (43) capable of being fixed on the periphery of a rod body on one side of a fence door frame (1); the No. 3 fixing sleeve (44) is provided with a No. 3 shaft fixing hole (45) capable of being fixed on the periphery of an external fence rod; the No. 2 fixing sleeve (42) is provided with a No. 1 longitudinal hollow shell (41) integrally connected thereto; the No. 1 longitudinal hollow shell (41) is provided with a No. 1 shaft fixing hole (45) capable of being fixed on the periphery of an external fence rod; the No. 3 fixing sleeve (44) is provided with a No. 3 shaft fixing hole (45) capable of being fixed on the periphery of an external fence rod; the No. 3 A first rod body through hole (410) with upper and lower end surfaces opened is arranged inside the hollow shell (41); an annular liquid flow cavity (411) is arranged on the periphery of the middle area of ​​the first rod body through hole (410); a first liquid flow hole (413) connecting the external space and the annular liquid flow cavity (411) is arranged on the circumference of the first longitudinal hollow shell (41); and a first longitudinal hollow shell (411) is provided on the periphery of the first longitudinal hollow shell (41) to connect the external space and the annular liquid flow cavity (411). An elastic air film (412) is embedded in the intersection of the flow cavity (411) and the No. 1 rod body through hole (410) in an edge-sealed manner; a pullable limit pin (414) is inserted into the No. 1 rod body through hole (410) of the No. 1 longitudinal hollow shell (41); a limit movable plate (415) having an integral structure with the limit pin (414) is provided at the bottom end of the limit pin (414); a lower embedded disk (46) having an integral structure with the No. 3 fixing sleeve (44) is provided on one side of the No. 3 fixing sleeve (44); the lower embedded disk A lower permanent magnet (47) is embedded inside the upper end surface of the (46); a bottom limit sleeve structure (48) which is an integral structure with the lower embedded disc (46) and is located directly below the limit movable plate (415) is provided on one side of the lower embedded disc (46); a limit insertion hole (49) with both the upper and lower ends being open is provided inside the bottom limit sleeve structure (48); an insertion pin body (416) which is an integral structure with the lower embedded disc (46) and can be inserted into the limit insertion hole (49) is provided at the bottom end of the limit movable plate (415); The magnetic pole type pressure control mechanism (5) comprises a second longitudinal hollow shell (51), wherein a first component active cavity (52) is arranged inside the second longitudinal hollow shell (51), and a liquid limiting flow cavity (53) is arranged at the bottom end of the first component active cavity (52) of the second longitudinal hollow shell (51), and the structural radius of the liquid limiting flow cavity (53) is smaller than the structural radius of the first component active cavity (52), and a second rod body through hole (55) connecting the space below and the liquid limiting flow cavity (53) is arranged at the bottom end of the second longitudinal hollow shell (51), and a gas compensation hole (56) connecting the space above and the top end of the first component active cavity (52) is arranged at the top end of the second longitudinal hollow shell (51), and a component docking channel (54) connecting the liquid limiting flow cavity (53) and the first liquid flow hole (413) is arranged on the circumferential surface of the second longitudinal hollow shell (51), and the The component docking channel (54) is fixedly connected to the circumferential surface of the No. 1 longitudinal hollow shell (41); the No. 1 piston plate (57) capable of axially moving along the No. 1 component active chamber (52) is placed in the No. 1 component active chamber (52) of the No. 2 longitudinal hollow shell (51); a No. 1 coil spring (58) in a compressed state is fixedly installed on the upper end surface of the No. 1 piston plate (57); a longitudinal telescopic rod (59) penetrating the liquid limiting flow chamber (53) and the No. 2 rod body through-hole (55) is fixedly installed at the bottom end of the No. 1 piston plate (57); an upper embedded disk (510) is fixedly installed at the bottom end of the longitudinal telescopic rod (59); an upper permanent magnet (511) is embedded in the lower surface of the upper embedded disk (510); and a buffer solution is filled in the closed area between the lower surface of the No. 1 piston plate (57) and the outer circumferential surface of the elastic air membrane (412) of the No. 2 longitudinal hollow shell (51).

2. A portable fence gate structure for a municipal park according to claim 1, characterized in that: The structural radius of the rod body of the limiting pin rod (414) is smaller than the structural radius of the first rod body through hole (410), and the structural radius of the insertion pin body (416) is smaller than the structural radius of the limiting insertion hole (49).

3. A portable fence gate structure for a municipal park according to claim 2, characterized in that: The elastic air membrane (412) is embedded in the interior of the first longitudinal hollow shell (41) in a stretched state, and the elastic strength of the elastic air membrane (412) is sufficient to produce a driving effect on the buffer located on its periphery.

4. A portable fence gate structure for a municipal park according to claim 3, characterized in that: The magnetic poles on the lower surface of the upper permanent magnet (511) are the same as the magnetic poles on the upper surface of the lower permanent magnet (47).

5. A portable fence gate structure for municipal parks according to claim 4, characterized in that: When the upper permanent magnet (511) and the lower permanent magnet (47) are in an upper and lower symmetrical relationship, the repulsive force between the two is sufficient to cause the No. 1 piston plate (57) to move upward, thereby relieving the liquid pressure of the buffer on the elastic air film (412); when the upper permanent magnet (511) and the lower permanent magnet (47) are in a misaligned relationship, the No. 1 coil spring (58) makes the pressure of the buffer on the elastic air film (412) sufficient to wrap the elastic air film (412) around the outer periphery of the rod body of the limit pin rod (414), and make the limit pin rod (414) in a stationary state.

6. The portable fence gate structure for municipal parks according to claim 1, characterized in that: It also includes an elastic closing mechanism (6), which is provided with a third longitudinal hollow shell (61) embedded in the ground and located directly below the fence door frame (1), a second piston plate (610) placed inside the third longitudinal hollow shell (61) and capable of longitudinal movement, a pull rope (611) that moves with the second piston plate (610) and can reset the fence door frame (1) to a closed state, and a second coil spring (614) that causes the second piston plate (610) to move downward.

7. A portable fence gate structure for a municipal park according to claim 6, characterized in that: The elastic closing mechanism (6) comprises a third longitudinal hollow shell (61), the bottom of the third longitudinal hollow shell (61) is provided with a bottom fixing plate (62) which is an integral structure with the third longitudinal hollow shell (61), the circumferential surface of the third longitudinal hollow shell (61) close to the top thereof is provided with a top flush plate (63) which is an integral structure with the third longitudinal hollow shell (61), the interior of the third longitudinal hollow shell (61) is provided with a second component movable cavity (64), the bottom of the second component movable cavity (64) is provided with a medium limiting flow cavity (65), the top of the third longitudinal hollow shell (61) is provided with a wire rope through hole (68) which connects the space above the third longitudinal hollow shell (61) and the second component movable cavity (64), and the interior of the third longitudinal hollow shell (61) is provided with a first medium flow hole (66) and a second medium flow hole (65) which connect the upper surface thereof and the medium limiting flow cavity (65). A flow hole (67), a medium check valve (69) is installed inside the No. 1 medium flow hole (66), a No. 3 longitudinal hollow shell (61) is provided with a No. 2 piston plate (610) which is movable longitudinally along the No. 2 component movable chamber (64), and the No. 2 piston plate (610) is placed inside the No. 2 component movable chamber (64), a pull rope (611) which passes through the rope through hole (68) is embedded in the upper end surface of the No. 2 piston plate (610), and a No. 2 coil spring (614) in a compressed state is placed on the outer periphery of the rope body of the pull rope (611) inside the No. 2 component movable chamber (64), a No. 4 fixing sleeve (612) is fixedly installed at the top end of the pull rope (611), and a No. 4 shaft fixing hole (613) which is fixedly installed in the middle area of ​​the pull rod body at the bottom of the fence door frame (1) is arranged inside the No. 4 fixing sleeve (612).

8. The portable fence gate structure for municipal parks according to claim 7, characterized in that: The aperture of the first medium flow hole (66) is larger than the aperture of the second medium flow hole (67), and the medium one-way valve (69) enables the medium to flow from top to bottom.

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