CN114134838A

CN114134838A - Queuing fence for citizen vaccination

Info

Publication number: CN114134838A
Application number: CN202111244210.1A
Authority: CN
Inventors: 李涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-03-04

Abstract

The invention relates to a queuing fence for citizen vaccination, which comprises a base block, a queuing railing, a fence and a protection component, wherein the middle end of one side of the queuing railing is fixedly provided with a movable base through a bolt, the movable base is movably connected with a triangular base plate through a bolt, two ends of one side of the bottom of the triangular base plate are fixedly provided with a second rotating base through bolts, one side of the bottom of a cavity on the base block is fixedly welded with a first rotating base, the first rotating base is movably connected with a base plate, one side of the bottom of the base plate is fixedly provided with a roller through a bolt, the center of the top of the queuing railing is fixedly welded with the fence, and the top of the fence is provided with the protection component. Has the advantages that: the base piece upper junction plate drives the gyro wheel business turn over and realizes the removal and accomodate of railing lining up, and the structure is unique, and the triangle bed plate realizes launching and accomodating on movable base, H type adjustable shelf and connecting rod, the rest of being convenient for, design benefit, protection component provides convenience to citizen, and the sunshade is rain-sheltered, and practicality is strong.

Description

Queuing fence for citizen vaccination

Technical Field

The invention relates to the technical field related to vaccines, in particular to a queuing fence for citizen vaccination.

Background

Wooden pens, which have emerged since the earliest, are barriers that people have set in order to contain various livestock. The fence developed to the present appears in different appearance forms in our daily life and has very wide application and connotation.

At present, at the first line of vaccination, queuing is needed in a queuing area, a table filling area, a vaccination area and a watching area, and citizens need to stably, orderly and effectively queue, so that a safe, orderly and comfortable vaccination environment can be built.

At present, the time in the queuing process is long, people need to stand for a long time, the people are tired, the quality of life is affected, especially old people and women and children, the queuing railing in the current market is single in function, only the effect of maintaining order is guided, standing outdoors for a long time causes ache to legs of citizens, even standing for a long time causes increase of blood pressure of the elderly, meanwhile, with arrival of summer and rainy season, the queuing railing inoculated outdoors can not shade sun and keep out rain, the practicability is poor, and the queuing fence for citizen vaccination is provided aiming at the phenomena.

Disclosure of Invention

The invention aims to provide a queuing fence for civil vaccination, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a queuing fence for citizen vaccination comprises a base block, a queuing railing, a fence and a protection component, wherein the queuing railing is fixedly welded at the center of the top of the base block, the movable base is fixedly arranged at the middle end of one side of the queuing railing through a bolt, a triangular base plate is movably connected onto the movable base through a bolt, a second rotary seat is fixedly arranged at two ends of one side of the bottom of the triangular base plate through a bolt, an H-shaped movable frame is movably connected between the second rotary seats through a bolt, a fixed rod is arranged at the middle end of the H-shaped movable frame, a movable ring is movably sleeved on the fixed rod, a connecting rod is fixedly welded at one side of the movable ring, the other end of the connecting rod is fixed onto one side of the bottom of the queuing railing through the second rotary seat, a cavity is arranged at one side of the inner part of the base block, lie in on the base piece cavity bottom one side welded fastening has first roating seat, swing joint has the bed plate on the first roating seat, there is the gyro wheel bottom one side of bed plate through bolt fixed mounting, bed plate top one side and the inside top one side of cavity all welded fastening have a rotation piece, just fixed mounting has expanding spring between the rotation piece, bed plate top one side bonds and is fixed with the plastics pad, lie in on the base piece cavity bottom one side seted up with gyro wheel assorted business turn over groove, the top center department welded fastening of railing of lining up has the rail, the rail top is equipped with protective component, protective component includes base pole, movable rod and fixed plate.

Further, one side that is located movable base on the railing of lining up is equipped with the rotary disk, on the rotary disk fixed mounting have with the fixed knot that the triangle bed plate offseted, triangle bed plate top one side is equipped with positive magnet piece, be equipped with on railing top one side of lining up with the negative magnet piece of positive magnet piece mutual match.

Further, be located on the base piece the hole groove has been seted up to first roating seat top one side, be located on the base piece the both ends welded fastening of hole groove one side has a limiting plate, be located on the base piece outside opposite one side welded fastening of hole groove has a connecting plate, just the connecting plate with the hole groove size is identical, be located on the base piece top the teacup rack is installed through bolt fastening to railing one side of lining up, be located on the base piece cavity one side is equipped with the balancing weight.

Furthermore, a groove is formed in the top of one side of the triangular base plate on the queuing handrail, and a temperature gun is arranged in the groove on the queuing handrail.

Furthermore, a slot is formed in one side of the fence, a fence belt is movably connected to the slot on the fence, a connecting buckle is fixedly mounted at the other end of the fence belt, and a connecting buckle base matched and suitable with the connecting buckle is fixedly mounted on one opposite side of the slot through a bolt.

Further, base pole welded fastening is in on the rail top, swing joint has on the base pole top the movable rod, the activity chamber has been seted up to inside one side of movable rod, lie in on the movable rod activity chamber bottom one side welded fastening has compression spring, the compression spring other end welded fastening has the fly leaf, fly leaf top one side welded fastening has the arc briquetting.

Furthermore, the movable rod is positioned on two sides of one end of the movable cavity, movable grooves are formed in the two ends of the movable plate, the two ends of the movable plate movably penetrate through the movable grooves, a plurality of fixing holes are uniformly formed in one side of the base rod, and the size of each fixing hole is matched with that of the arc-shaped pressing block.

Furthermore, top one side welded fastening of movable rod has two the fixed plate, umbrella groove has all been seted up to fixed plate one side, lie in on the fixed plate the opening has been seted up to one side in umbrella groove, lie in on the fixed plate one side threaded connection in umbrella groove has T type threaded rod, and lie in on the T type threaded rod umbrella inslot one end fixed mounting has the rubber pad.

Compared with the prior art, the invention has the following beneficial effects:

1. overturn on the mobile base through the triangle bed plate, the H type adjustable shelf that will be under the triangle bed plate expandes on the second roating seat, the both ends of connecting rod support H type adjustable shelf on activity ring and second roating seat respectively, expand the level with the triangle bed plate and place, the personnel of lining up can have a rest on the triangle bed plate, temperature rifle through the recess detects citizen's body temperature, the triangle bed plate that overturns after the completion is lined up is accomodate through positive magnet piece and negative magnet piece, then the fixed knot on the operation rotary disk, it is spacing to go to support the triangle bed plate with fixed knot is rotatory, moreover, the steam generator is simple in structure, and convenient for operation, provide convenience for citizen, avoid causing the soreness of legs in lining up.

2. Insert the hole groove on another base piece through the connecting plate on the base piece, the realization is to the removal of accomodating of railing of lining up, the connecting plate moves to the cavity along the limiting plate in inserting the hole groove, the connecting plate will offset the plastic pad on the base plate, make the gyro wheel under the base plate ejecting business turn over groove under the effect of first roating seat, telescopic spring on the base plate is in tensile state this moment, will cause ascending pressure to the connecting plate, make the connecting plate joint in the hole groove, connect gradually as a plurality of base pieces, will realize that a plurality of gyro wheels are connected, thereby realize the removal and the accomodating of railing of lining up, reasonable in design is ingenious, unique stable structure, and time and labor are saved, when needs expand, hard with pulling out between the base piece immediately, and convenient operation.

3. Through fence area, connector link and the connector link base realization effect of lining up on the rail, maintain the order of lining up, the citizen passes through the opening with the umbrella and fixes to the umbrella groove with T type threaded rod, has realized that outdoor in-process of lining up sunshade keeps off the rain, carries out altitude mixture control, convenient to use, mechanical structure adjusts, stable safety to the umbrella in arc briquetting and fixed orifices through movable rod and base pole.

4. Drive the gyro wheel business turn over through base piece upper junction plate and realize the removal and accomodate of railing lining up, the structure is unique, and the triangle bed plate realizes expanding and accomodating on movable base, H type adjustable shelf and connecting rod, and the citizen of being convenient for has a rest and lines up, design benefit, rail realization effect of lining up, and protective assembly provides convenience to the citizen, and the sunshade is kept off the rain, and the practicality is strong.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a deployed configuration of a queuing pen for civil vaccination, implemented in accordance with the present invention;

FIG. 2 is a schematic diagram of a storage structure of a queuing fence for civil vaccination according to the present invention;

FIG. 3 is a schematic view of the connection between the base rod and the movable rod of a queuing fence for civil vaccination according to the present invention;

FIG. 4 is an enlarged view of the structure shown at A in FIG. 3;

FIG. 5 is a schematic view of a stationary plate structure of a queuing fence for civil vaccination, implemented in accordance with the present invention;

FIG. 6 is a schematic view of a connection structure between base blocks of a queuing fence for civil vaccination according to the present invention;

FIG. 7 is an enlarged view of the structure at B in FIG. 2;

FIG. 8 is an enlarged view of the structure at A in FIG. 1;

reference numerals:

1. a base block; 11. a cavity; 12. a hole groove; 13. a limiting plate; 14. a connecting plate; 15. a teacup rack; 16. a slot is arranged in and out; 17. a balancing weight; 2. a queuing rail; 21. a movable base; 22. a triangular base plate; 23. rotating the disc; 24. a fixing buckle; 25. a positive magnet piece; 26. a negative magnet piece; 27. a groove; 28. a temperature gun; 3. a fence; 31. grooving; 32. a barrier belt; 33. a connecting buckle; 34. a connecting buckle base; 4. a guard assembly; 5. a base plate; 51. a first rotating base; 52. a roller; 53. a rotating member; 54. a tension spring; 55. a plastic pad; 6. an H-shaped movable frame; 61. a second rotary base; 62. fixing the rod; 63. a movable ring; 64. a connecting rod; 7. a base rod; 71. a fixing hole; 8. a movable rod; 81. a movable cavity; 82. a compression spring; 83. a movable plate; 84. an arc-shaped pressing block; 85. a movable groove; 9. a fixing plate; 91. an umbrella slot; 92. an opening; 93. a T-shaped threaded rod; 94. and (7) a rubber pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described below clearly and completely with reference to the accompanying 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 embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "rear", "middle part", "inside", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for the purpose of facilitating description of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; either directly or indirectly through intervening media, or both elements may be interconnected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-8, a queuing fence for citizen vaccination according to the present invention comprises a base block 1, a queuing rail 2, a fence 3 and a protection component 4, wherein the queuing rail 2 is welded and fixed at the center of the top of the base block 1, a movable base 21 is fixedly installed at the middle end of one side of the queuing rail 2 through a bolt, a triangular base plate 22 is movably connected to the movable base 21 through a bolt, a second rotary base 61 is fixedly installed at both ends of one side of the bottom of the triangular base plate 22 through a bolt, an H-shaped movable frame 6 is movably connected between the second rotary bases 61 through a bolt, a fixed rod 62 is arranged at the middle end of the H-shaped movable frame 6, a movable ring 63 is movably sleeved on the fixed rod 62, a connecting rod 64 is welded and fixed at one side of the movable ring 63, the other end of the connecting rod 64 is fixed at one side of the bottom of the queuing rail 2 through the second rotary base 61, inside one side of base piece 1 is equipped with cavity 11, it has first roating seat 51 to lie in cavity 11 bottom one side welded fastening on base piece 1, swing joint has bed plate 5 on the first roating seat 51, there is gyro wheel 52 bottom one side of bed plate 5 through bolt fixed mounting, equal welded fastening has rotation piece 53 in bed plate 5 top one side and the inside top one side of cavity 11, and rotate fixed mounting between the piece 53 has expanding spring 54, bed plate 5 top one side bonded fastening has plastic pad 55, lie in cavity 11 bottom one side on base piece 1 and seted up with gyro wheel 52 assorted business turn over groove 16, the top center department welded fastening of railing 2 of lining up has rail 3, rail 3 top is equipped with protecting component 4, protecting component 4 is including base pole 7, movable rod 8 and fixed plate 9.

Wherein, the one side that lies in movable base 21 on railing 2 lines up is equipped with rotary disk 23, and fixed mounting has the fixed knot 24 that offsets with triangle bed plate 22 on the rotary disk 23, and triangle bed plate 22 top one side is equipped with positive magnet piece 25, lines up and is equipped with the negative magnet piece 26 that matches each other with positive magnet piece 25 on railing 2 top one side, accomodates simple structure, convenient operation to triangle bed plate 22 through positive and negative magnet piece cooperation fixed knot 24.

Wherein, the hole groove 12 has been seted up to the first roating seat 51 top one side of lieing in on base piece 1, the both ends welded fastening who lies in hole groove 12 one side on base piece 1 has limiting plate 13, the opposition one side welded fastening who lies in hole groove 12 on base piece 1 outside has connecting plate 14, and connecting plate 14 is identical with hole groove 12 size, it has teacup rack 15 through bolt fixed mounting to lie in 2 one side of railing of lining up on base piece 1 top, it is equipped with balancing weight 17 to lie in cavity 11 one side on base piece 1, enter into hole groove 12 through connecting plate 14, spacing through limiting plate 13, make connecting plate 14 act on base plate 5.

Wherein, the one side top department that lies in triangle bed plate 22 on the railing 2 of lining up has seted up recess 27, and it is equipped with temperature gun 28 to lie in recess 27 on the railing 2 of lining up, detects citizen's body temperature.

Wherein, 3 one sides of rail have been seted up fluting 31, lie in fluting 31 swing joint on the rail 3 and have rail area 32, rail area 32 other end fixed mounting has

connector link

33, and 3 outside lies in fluting 31 opposite one side and has a connector link base 34 that is suitable for with connector link 33 phase-match through bolt fixed mounting, realizes the ranking effect through rail area 32 in connector link 33 and connector link base 34.

Wherein, base pole 7 welded fastening is on rail 3 top, and swing joint has the movable rod 8 on the base pole 7 top, and activity chamber 81 has been seted up to inside one side of movable rod 8, lies in activity chamber 81 bottom one side welded fastening on the movable rod 8 and has compression spring 82, and compression spring 82 other end welded fastening has a movable plate 83, and movable plate 83 top one side welded fastening has arc briquetting 84, through the movement height-adjusting of arc briquetting 84.

Wherein, the movable rod 8 is located the one end both sides of activity chamber 81 and has seted up movable groove 85, and the activity of the both ends of activity board 83 runs through in movable groove 85, and a plurality of fixed orifices 71 has evenly been seted up to one side of base pole 7, and fixed orifices 71 size and arc briquetting 84 size are identical, and arc briquetting 84 realizes the regulation to the umbrella height on the fixed orifices 71 of different positions, and the citizen of being convenient for uses.

Wherein, top one side welded fastening of movable rod 8 has two fixed plates 9, and umbrella groove 91 has all been seted up to fixed plate 9 one side, and opening 92 has been seted up to the one side that lies in umbrella groove 91 on fixed plate 9, and one side threaded connection that lies in umbrella groove 91 on the fixed plate 9 has T type threaded rod 93, and lies in one end fixed mounting in umbrella groove 91 on T type threaded rod 93 and have rubber pad 94, carries out the joint to the rainwater and fixes easy operation convenience.

Principle of operation

Through the scheme of the invention, the queuing fence for the civil vaccination turns over the movable base 21 through the triangular base plate 22 in the using process, the H-shaped movable frame 6 below the triangular base plate 22 is unfolded on the second rotary seat 61, two ends of the connecting rod 64 are respectively used for supporting the H-shaped movable frame 6 on the movable ring 63 and the second rotary seat 61, the triangular base plate 22 is unfolded and horizontally placed, the queuing personnel can rest on the triangular base plate 22, the body temperature of the citizen is detected through the temperature gun 28 in the groove 27, the triangular base plate 22 is turned over to be stored through the positive magnet piece 25 and the negative magnet piece 26 after the queuing is finished, then the fixing buckle 24 on the rotary disk 23 is operated to rotate the fixing buckle to support and limit the triangular base plate 22, the queuing fence has simple structure and convenient operation, and provides convenience for the citizen, the leg ache in the queuing process is avoided; the base blocks 1 are inserted into the hole grooves 12 of the other base block 1 through the connecting plates 14 to realize the containing and moving of the queuing handrails 2, the connecting plates 14 are inserted into the hole grooves 12 and move into the cavity 11 along the limiting plates 13, the connecting plates 14 abut against the plastic pads 55 on the base plates 5, so that the rollers 52 under the base plates 5 are ejected out of the grooves 16 under the action of the first rotating base 51, at the moment, the extension springs 54 on the base plates 5 are in a stretching state to apply upward pressure to the connecting plates 14, the connecting plates 14 are clamped in the hole grooves 12, when the base blocks 1 are connected in sequence, the rollers 52 are connected, and the queuing handrails 2 are moved and contained, the design is reasonable and ingenious, the structure is unique and stable, time and labor are saved, when the base blocks are required to be unfolded, the base blocks 1 can be pulled out immediately by force, the operation is convenient; the queuing effect is realized through the fence belt 32, the connecting buckle 33 and the connecting buckle base 34 on the fence 3, the queuing order is maintained, the citizens fix the umbrella in the umbrella groove 91 through the opening 92 and the T-shaped threaded rod 93, the sun-shading and rain-shielding in the outdoor queuing process are realized, the height of the umbrella is adjusted in the arc-shaped pressing block 84 and the fixed hole 71 through the movable rod 8 and the base rod 7, the use is convenient, the mechanical structure is adjusted, and the stability and the safety are realized; drive gyro wheel 52 business turn over through 1 upper junction plate of base 14 and realize the removal and accomodate queuing up railing 2, the structure is unique, and triangle bed plate 22 realizes unfolding and accomodating on activity base 21, H type adjustable shelf 6 and connecting rod 64, and the citizen of being convenient for has a rest and queues up, design benefit, rail 3 realize the effect of lining up, and protective component 4 provides convenience to the citizen, and the sunshade is kept off the rain, and the practicality is strong.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a citizen vaccinates with rail of lining up, includes base piece (1), rail (2), rail (3) and protection component (4) of lining up, its characterized in that, the top center department welded fastening of base piece (1) has rail (2) of lining up, rail (2) of lining up one side middle-end through bolt fixed mounting have movable base (21), there is triangle bed plate (22) through bolt swing joint on movable base (21), there is second roating seat (61) at bottom one side both ends of triangle bed plate (22) through bolt fixed mounting, there is H type movable frame (6) through bolt swing joint between second roating seat (61), H type movable frame (6) middle-end is equipped with dead lever (62), activity cup joints activity ring (63) on dead lever (62), activity ring (63) one side welded fastening has connecting rod (64), the other end of the connecting rod (64) is fixed on one side of the bottom of the queuing rail (2) through the second rotating seat (61), a cavity (11) is arranged on one side inside the base block (1), a first rotating seat (51) is fixedly welded on one side of the bottom of the cavity (11) on the base block (1), a base plate (5) is movably connected on the first rotating seat (51), rollers (52) are fixedly installed on one side of the bottom of the base plate (5) through bolts, rotating pieces (53) are fixedly welded on one side of the top of the base plate (5) and one side of the top inside the cavity (11), a telescopic spring (54) is fixedly installed between the rotating pieces (53), a plastic pad (55) is fixedly bonded on one side of the top of the base plate (5), an inlet and outlet groove (16) matched with the rollers (52) is formed in one side of the bottom of the cavity (11) on the base block (1), the fence is welded and fixed at the center of the top of the queuing rail (2), the top of the fence (3) is provided with a protection component (4), and the protection component (4) comprises a base rod (7), a movable rod (8) and a fixed plate (9).

2. The queuing fence for civil vaccination according to claim 1, wherein a rotating disc (23) is disposed on one side of the movable base (21) of the queuing rail (2), a fixing buckle (24) abutting against the triangular base plate (22) is fixedly mounted on the rotating disc (23), a positive magnet piece (25) is disposed on one side of the top of the triangular base plate (22), and a negative magnet piece (26) matched with the positive magnet piece (25) is disposed on one side of the top of the queuing rail (2).

3. The queuing fence for the civil vaccination according to claim 1, wherein a hole groove (12) is formed on one side of the base block (1) located at the top of the first rotating seat (51), a limiting plate (13) is welded and fixed to two ends of the base block (1) located at one side of the hole groove (12), a connecting plate (14) is welded and fixed to one side of the base block (1) located at the opposite side of the hole groove (12), the connecting plate (14) is matched with the hole groove (12) in size, a teacup rack (15) is fixedly installed on one side of the queuing rail (2) on the top of the base block (1) through bolts, and a balancing weight (17) is arranged on one side of the base block (1) located in the cavity (11).

4. A queuing fence for civil vaccination according to claim 1 wherein a recess (27) is provided on the queuing rail (2) at the top of one side of the triangular base plate (22), and a temperature gun (28) is provided on the queuing rail (2) in the recess (27).

5. The queuing fence for the civil vaccination according to claim 1, wherein a slot (31) is opened at one side of the fence (3), a fence belt (32) is movably connected in the slot (31) on the fence (3), a connecting buckle (33) is fixedly installed at the other end of the fence belt (32), and a connecting buckle base (34) which is matched and suitable with the connecting buckle (33) is fixedly installed at one opposite side of the slot (31) at the outer side of the fence (3) through a bolt.

6. The queuing fence for the civil vaccination according to claim 1, wherein the base rod (7) is welded and fixed on the top of the fence (3), the movable rod (8) is movably connected on the top of the base rod (7), a movable cavity (81) is formed on one side inside the movable rod (8), a compression spring (82) is welded and fixed on one side of the movable rod (8) positioned at the bottom of the movable cavity (81), a movable plate (83) is welded and fixed at the other end of the compression spring (82), and an arc-shaped pressing block (84) is welded and fixed on one side of the top of the movable plate (83).

7. The queuing fence for the civil vaccination according to claim 6, wherein the movable rod (8) is provided with movable grooves (85) at both sides of one end of the movable cavity (81), the two ends of the movable plate (83) movably penetrate through the movable grooves (85), one side of the base rod (7) is uniformly provided with a plurality of fixing holes (71), and the size of the fixing holes (71) is matched with that of the arc-shaped pressing block (84).

8. The queuing fence for the civil vaccination according to claim 1, wherein two fixing plates (9) are fixed to one side of the top of the movable rod (8) by welding, an umbrella groove (91) is formed on each side of the fixing plates (9), an opening (92) is formed in one side of the fixing plate (9) which is located in the umbrella groove (91), a T-shaped threaded rod (93) is connected to one side of the fixing plate (9) which is located in the umbrella groove (91) by threads, and a rubber pad (94) is fixedly mounted at one end of the T-shaped threaded rod (93) which is located in the umbrella groove (91).