CN110675776B

CN110675776B - Shutter bulletin board

Info

Publication number: CN110675776B
Application number: CN201911004290.6A
Authority: CN
Inventors: 王燕红; 龚少涵; 李明渊
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2021-06-04
Anticipated expiration: 2039-10-22
Also published as: CN110675776A

Abstract

The invention discloses a shutter bulletin board, which comprises a first mounting pipe, a second mounting pipe opposite to the first mounting pipe, a blade mounted between the two mounting pipes, and a cutting tool capable of moving from the first mounting pipe to the second mounting pipe and moving from the second mounting pipe to the first mounting pipe; the blades are sequentially arranged along the axial direction of the first installation pipe or the second installation pipe, one end of each blade is rotatably connected with the first installation pipe, and the other end of each blade is rotatably connected with the second installation pipe; the cutting tool comprises a cutter, the cutter comprises a mounting plate and a plurality of blades mounted at one end of the mounting plate, and each blade corresponds to a gap between two adjacent blades; the bulletin board also comprises a turnover mechanism which enables the blades to turn over for at least 90 degrees; a plurality of blades are arranged next to each other along the axial direction of the first mounting pipe to form a panel. The windward area of the bulletin board is greatly reduced, and the bulletin board is not easy to be blown to deform or fall down. The blade can cut the poster into poster strips which are stuck on the blade, thus the overturning of the blade is not influenced.

Description

Shutter bulletin board

Technical Field

The invention belongs to the field of bulletin boards, and particularly relates to a shutter bulletin board.

Background

The independent bulletin board of the school not against the wall is easy to blow and shake when the wind is strong due to the large panel area of the sticking notice and the poster, and particularly, in coastal typhoon weather, the bulletin board panel is easy to blow and deform, the whole bulletin board is easy to blow down, and the maintenance is troublesome and high in cost. Therefore, the characteristic of adopting the shutter is considered according to the school shutter curtain, the panel of the bulletin board is designed to be composed of a plurality of blades, and the blades can be turned over, so that the windward area of the bulletin board is greatly reduced, and the bulletin board is not easy to blow down by wind. However, in reality, the corresponding notification, poster, and the like to be printed and pasted on the bulletin board are printed in a large format, and then cut into notification bars (or poster bars, and the like) in a single piece, which increases the number of processes and increases the printing cost of the notification, poster, and the like. When pasting a strip of notices, posters, etc. onto a leaf, the following problems have also been found: on one hand, the more the number of the strips is, the more time and trouble are needed for pasting the strips one by one; on the other hand, the notification bars (or poster bars and the like) are easy to stick obliquely (some left sides are high, some left sides are low, or the heights are not uniform), so that the notification bars look irregular and are not pinched, and the continuity of the contents of the adjacent notification bars (or poster bars and the like) is influenced, so that the notification bars (or poster bars and the like) are inconvenient to watch and read.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provided is a bulletin board which can prevent falling of a message by wind, and which is convenient for pasting a notice, a poster, etc., and which is convenient for use.

In order to realize the purpose of the invention, the following technical scheme is adopted for realizing the purpose:

a shutter bulletin board comprises a first installation pipe, a second installation pipe opposite to the first installation pipe, a plurality of rectangular and flaky blades arranged between the two installation pipes, and a cutting tool which can move from the first installation pipe to the second installation pipe and can move from the second installation pipe to the first installation pipe; the blades are sequentially arranged along the axial direction of the first mounting pipe or the second mounting pipe, one end of each blade is rotatably connected with the first mounting pipe, and the other end of each blade is rotatably connected with the second mounting pipe; the cutting tool comprises a cutter, the cutter comprises a mounting plate and a plurality of blades which are arranged at one end of the mounting plate and are arranged at equal intervals, and each blade corresponds to a gap between two adjacent blades; the bulletin board also comprises a turnover mechanism which enables the blades to turn over for at least 90 degrees; the blades are arranged along the axial direction of the first mounting pipe in a side-by-side mode to form a panel.

The beneficial effect of above-mentioned setting: the panel of the bulletin board adhered with posters and the like is arranged into a plurality of blades, under the action of the turnover mechanism, the blades are turned over by 90 degrees, so that the windward area of the bulletin board is greatly reduced, the blowing force of the bulletin board is at least reduced by more than 70 percent, the bulletin board panel is not easy to be blown by strong wind such as typhoon and deform, the bulletin board is also difficult to blow down, and the possibility that the bulletin board panel is blown to deform or the bulletin board is blown down to cause maintenance trouble and maintenance cost is reduced to a certain extent. Moreover, cutting means has been set up on bulletin board, every blade of cutter corresponds the gap between two adjacent blades, when pasting poster etc. on the panel, rethread mobile cutter, the blade can be cut into the poster a poster strip and paste the poster strip on the blade, do not influence the upset of blade like this, and need not cut into a poster etc. in advance again and strip, the printing cost of poster etc. can not increase like this, also need not gluing on the blade of a strip when pasting again, make the poster strip can not appear the left side height, some the left side is low, or the high or low non-uniform untidy phenomenon of waiting, make the continuity of adjacent notice strip (or poster strip etc.) content, conveniently watch and read.

Further optimally: the cutting tool also comprises an installation box and two sliding rods for supporting the installation box; the blade-holding type cutting tool mounting device is characterized in that an accommodating cavity with an opening facing a blade and used for accommodating a cutting tool is formed in the mounting box, the upper end and the lower end of the mounting box are respectively connected with a sliding sleeve, a threaded pipe communicated with the accommodating cavity is connected to the middle of one end, away from the blade, of the mounting box, and the threaded pipe is in threaded connection with an adjusting bolt for adjusting the position of the cutting tool; the inner end of the adjusting bolt is connected with the other end of the mounting plate in an abutting mode; the upper end and the lower end of the bottom wall of the accommodating cavity corresponding to the threaded pipe are respectively fixedly connected with a guide rod, and a tensioning spring is sleeved outside the guide rod; the upper end and the lower end of the mounting plate are respectively provided with a guide hole through which a guide rod passes; one end of the tension spring is fixedly connected with the mounting plate, and the other end of the tension spring is fixedly connected with the bottom wall of the accommodating cavity; and one end of one sliding rod is connected with the upper part of the first installation pipe, the other end of the sliding rod is connected with the upper part of the second installation pipe, one end of the other sliding rod is connected with the lower part of the first installation pipe, and the other end of the sliding rod is connected with the lower part of the second installation pipe.

The beneficial effect of above-mentioned setting: the tensioning spring pulls the cutter to holding the intracavity, can make the cutter withdrawal hold the intracavity through adjusting bolt, need not cutter cutting poster etc. like this, especially when pasting or tearing off the poster, people are difficult for touchhing the cutter, can not cut by the cutter, play the guard action to the people. Need cut poster etc. the rethread rotates adjusting bolt and extrudes the cutter and holds the chamber, makes the cutter to suitable position, conveniently cuts poster etc..

Further optimally: pressing mechanisms are respectively arranged on two sides of the blade and comprise pressing heads and pressing springs; the length of the pressure head along the cutting direction of the blade is greater than the width of the blade in the direction, and a part of the pressure head extends to the front of the edge of the blade; one end of the compression spring is fixedly connected with the mounting plate, and the other end of the compression spring is fixedly connected with the pressure head.

The beneficial effect of above-mentioned setting: the sliding cutting tool has the advantages that the length of the pressure head is larger than the width of the blade, part of the pressure head extends to the front of the knife edge of the blade, the pressure head presses a poster and the like in advance under the action of the compression spring, the poster in contact with the blade is pressed to be tightly attached to the blade, the poster cannot be tilted, and the blade can be conveniently used for cutting the poster and the like.

Further optimally: the inside shaping of pressure head has the heating chamber, install the heating wire in the heating chamber, the heating intracavity is equipped with heat conduction liquid.

The beneficial effect of above-mentioned setting: heating wire ohmic heating heat conduction liquid, heat conduction liquid heats the pressure head, heats poster etc. and the plastic film of some posters etc. or the very thin posters of plastic material etc. heat after-softening easily by the cutting, and difficult production deckle edge.

Further optimally: the upper part and the lower part of the first installation pipe are respectively fixedly connected with a first connector, and the upper part and the lower part of the second installation pipe are respectively fixedly connected with a second connector; through holes are formed in the first connector and the second connector respectively; threaded holes are formed in the two ends of each of the two sliding rods respectively, and the two ends of each of the two sliding rods are connected with the corresponding first connector and the corresponding second connector through screws.

The beneficial effect of above-mentioned setting: the sliding rod is connected with the connectors on the installation pipes through screws, so that the sliding rod is conveniently connected with and separated from the two installation pipes, and the bulletin board is convenient to assemble and disassemble.

Further optimally: one end of each blade is connected with a first hinge rod, and the other end of each blade is connected with a second hinge rod; the side wall of the first installation pipe is connected with a plurality of first hinged pipes which correspond to the first hinged rods one by one, and one first hinged rod is hinged with one first hinged pipe; the second installation pipe is including first half pipe, the lateral wall of first half pipe is connected with a plurality of articulated pipes of second with the articulated pole one-to-one of second, and an articulated pole of second is articulated with an articulated pipe of second.

The beneficial effect of above-mentioned setting: every blade one end is articulated with first installation pipe, and the other end is articulated with second installation pipe, can dismantle between blade and the installation pipe like this, conveniently makes respectively, and convenient transportation then assembles the use.

Further optimally: the second installation pipe comprises a second half pipe which forms a complete pipe with the first half pipe; the turnover mechanism comprises a first gear fixedly connected with the end part of the second hinge rod, a second gear meshed with two adjacent first gears together, and a rotating part for driving the first gear and the second gear to rotate; the inner side wall of the second half pipe is fixedly connected with an installation part which is rotationally connected with a second gear; the rotating part comprises a rotating disc positioned outside the second half pipe, a connecting rod with one end connected with one end of the rotating disc, and a polygonal plug-in connector connected with the other end of the connecting rod; the outer side wall of the second half pipe is connected with a side pipe corresponding to one of the first gears, and the inside of the side pipe is communicated with the inner side of the second half pipe; the first gear corresponding to the side pipe is provided with a plug hole which is plugged with the plug connector; the connecting rod runs through the side pipe, the side pipe lateral wall shaping has the through hole that is equipped with the internal thread, and through hole threaded connection has the fastening bolt who is used for fastening the connecting rod.

The beneficial effect of above-mentioned setting: the fastening bolt is unscrewed, then the rotating disc is screwed to enable the rotating part to drive the first gear and the second gear to rotate simultaneously, all the blades rotate towards one direction simultaneously, the windward side of the panel is greatly reduced, then the fastening bolt is screwed, the rotating part cannot rotate, and the blades cannot be overturned by wind. Compared with the existing venetian blind which is pulled by ropes, the rotating part rotates the blades, so that the problems that the ropes are blown up and swing, potential safety hazards exist, the blades are blown by wind and the like do not exist.

Further optimally: the lower ends of the first installation pipe and the second installation pipe are respectively connected with a support rod, the lower end of the support rod is connected with a chassis, and the upper end of the support rod is connected with a connecting disc connected with the installation pipes.

The beneficial effect of above-mentioned setting: the lower end of the installation pipe is connected with the supporting rod, so that the installation pipe does not need to be integrally produced with the supporting rod, the weight of a single part is reduced, the installation pipe is convenient to process and produce, the installation pipe can be connected with the connecting disc of the supporting rod through screws, and the installation pipe is convenient to assemble and disassemble. The chassis can be fixed on the ground through screws, so that the whole bulletin board is fixed on the ground.

Compared with the prior art, the invention has the main beneficial effects that: the panel that the blade that sets up the venetian blind is the same constitutes, when the strong wind such as typhoon will rise, makes the blade can overturn 90 degrees through tilting mechanism, reduces the panel windward side for the wind-force that the bulletin board bore reduces more than 70%, and the panel is difficult easily blown the deformation like this, and the bulletin board is difficult to be blown down. The poster that pastes on the panel is cut into a strip through cutting means and corresponds with the blade, does not influence the upset of blade like this, need not cut into a strip the poster in advance and paste, and comparison labour saving and time saving does not need to cut in advance and saves the printing cost.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic structural view of a first installation tube and a support rod according to the present invention.

Fig. 3 is a schematic structural view of a second mounting tube and a support rod according to the present invention.

Fig. 4 is a schematic view of the structure of the second half-pipe of the present invention.

Fig. 5 is a schematic view of the construction of the blade of the present invention.

Fig. 6 is a schematic view of the turning mechanism of the present invention.

Fig. 7 is a schematic structural view of the installation box of the present invention.

Fig. 8 is a schematic view of the structure of the cutter of the present invention.

Fig. 9 is a schematic view of another angle of the inventive cutter.

Fig. 10 is a cross-sectional view of the cutting tool of the present invention.

Fig. 11 is a schematic view of the structure of the slide bar of the present invention.

Fig. 12 is a schematic structural view of the first gear provided with the insertion hole.

Fig. 13 is a schematic view of the structure of the rotating part of the present invention.

Figure 14 is a partial schematic view in section of the present invention.

Fig. 15 is a schematic view of the blade of the present invention being turned 90 degrees.

Reference numerals: 1. a first mounting tube; 11. a first articulated tube; 12. a first connector; 2. a second mounting tube; 21. a first half pipe; 211. a second articulated tube; 212. a second connector; 22. a second half pipe; 221. an installation part; 222. a side tube; 223. a second gear; 3. a support bar; 31. a chassis; 32. a connecting disc; 4. a blade; 41. a first hinge lever; 42. a second hinge lever; 43. a first gear; 431. inserting holes; 5. installing a box; 51. a sliding sleeve; 52. a threaded pipe; 53. adjusting the bolt; 54. a guide bar; 55. tensioning the spring; 56. a control box; 561. a knob; 6. a cutter; 61. mounting a plate; 611. a positioning tube; 612. a guide hole; 62. a blade; 63. a compression spring; 64. a pressure head; 7. a slide bar; 71. a threaded hole; 8. a rotating part; 81. rotating the disc; 82. a connecting rod; 83. a plug-in connector.

Detailed Description

A detailed description of an embodiment of the present invention is provided below with reference to fig. 1-15.

In this embodiment, as shown in fig. 1, a shutter bulletin board comprises a first installation pipe 1, a second installation pipe 2 opposite to the first installation pipe 1, a plurality of rectangular and flaky blades 4 installed between the two installation pipes, and a cutting tool capable of moving from the first installation pipe 1 to the second installation pipe 2 and from the second installation pipe 2 to the first installation pipe 1. The blades 4 are sequentially arranged along the axial direction of the first installation pipe 1 or the second installation pipe 2, one end of each blade 4 is rotatably connected with the first installation pipe 1, and the other end of each blade 4 is rotatably connected with the second installation pipe 2. As shown in fig. 8, the cutting tool includes a cutter 6, and the cutter 6 includes a mounting plate 61 and a plurality of blades 62 mounted at one end of the mounting plate 61 and arranged at equal intervals, each blade 62 corresponding to a gap between two adjacent blades 4. The blade 62 may be configured to face the first mounting tube 1, and the blade 62 may be configured as a double blade, so that the blade 62 can cut both by sliding left and right. Earlier paste poster etc. on the panel, rethread mobile cutter 6, blade 62 can cut into the poster a poster strip and paste the poster strip on blade 4, do not influence the upset of blade 4 like this, and need not cut into poster etc. into a strip in advance again, can not increase the printing cost of poster etc. like this, also need not the gluing of a strip on blade 4 when pasting again, make the poster strip can not appear the left side height, some left sides are low, or high or low grade non-uniform untidy phenomenon, make the continuity of adjacent notice strip (or poster strip etc.) content, conveniently watch and read.

As shown in fig. 1, a plurality of blades 4 are arranged next to each other in the axial direction of the first installation tube 1 to constitute a panel. The bulletin board also comprises a turnover mechanism which enables the blades 4 to turn over for at least 90 degrees, the blades 4 turn over for 90 degrees, the windward area of the bulletin board is greatly reduced, the blowing force of the bulletin board is reduced by at least 70%, the bulletin board panel is not easy to blow and deform by strong wind such as typhoon and the like, the bulletin board is also not easy to blow down, and the possibility that the bulletin board panel is blown and deformed or the bulletin board is blown down to cause maintenance trouble and maintenance cost is reduced to a certain extent.

As shown in fig. 1, the cutting tool further comprises a mounting case 5 and two sliding bars 7 supporting the mounting case 5. As shown in fig. 7, the mounting box 5 is formed with a containing cavity which is opened toward the blade 4 and contains the cutter 6, the upper end and the lower end of the mounting box 5 are respectively connected with a sliding sleeve 51, the middle part of one end of the mounting box 5 far away from the blade 4 is connected with a threaded pipe 52 communicated with the containing cavity, and the threaded pipe 52 is in threaded connection with an adjusting bolt 53 for adjusting the position of the cutter 6. The inner end of the adjusting bolt 53 is connected with the other end of the mounting plate 61 in an abutting mode. As shown in fig. 10, a guide rod 54 is fixedly connected to each of the upper and lower ends of the bottom wall of the accommodating chamber corresponding to the threaded pipe 52, and a tension spring 55 is sleeved outside the guide rod 54. As shown in fig. 8 and 9, a guide hole 612 through which the guide rod 54 passes is formed at each of upper and lower ends of the mounting plate 61. One end of the tension spring 55 is fixedly connected with the mounting plate 61, and the other end is fixedly connected with the bottom wall of the accommodating cavity. And two sliding rods 7, one end of one sliding rod is connected with the upper part of the first installation pipe 1, the other end of the sliding rod is connected with the upper part of the second installation pipe 2, one end of the other sliding rod is connected with the lower part of the first installation pipe 1, and the other end of the sliding rod is connected with the lower part of the second installation pipe 2, so that the installation box 5 can move left and right along the sliding rods 7 (as shown in figure 1). As shown in fig. 9, a positioning tube 611 is connected to the middle of one end of the mounting plate 61 away from the blade 62, so that the inner end of the screw of the adjusting bolt 53 is inserted into the positioning tube 611, and thus the cutter 6 is not easy to shake relative to the mounting box 5 under the positioning of the adjusting bolt 53 by the positioning tube 611, the tension of the tension spring 55, the interference of the adjusting bolt 53 and the action of the guide rod 54. Taut spring 55 draws cutter 6 to holding the intracavity, can make cutter 6 withdraw through adjusting bolt 53 and hold the intracavity, need not cutter 6 like this to cut poster etc. especially when pasting or tearing off the poster, people are difficult for touching cutter 6, can not cut by cutter 6, play the guard action to the people. Need cut poster etc. the rethread rotates adjusting bolt 53 and extrudes cutter 6 and holds the chamber, makes cutter 6 to suitable position, conveniently cuts poster etc..

As shown in fig. 8: two sides of the blade 62 are respectively provided with a pressing mechanism, and the pressing mechanism comprises a pressing head 64 and a pressing spring 63. The length of the ram 64 in the direction of the cutting edge of the blade 62 is greater than the width of the blade 62 in that direction, with a portion extending forward of the cutting edge of the blade 62. One end of the pressure spring 63 is fixedly connected with the mounting plate 61, and the other end is fixedly connected with the pressure head 64. The sliding cutting tool has the advantages that the length of the pressure head 64 is larger than the width of the blade 62, a part of the pressure head 64 extends to the front of the knife edge of the blade 62, so that the pressure head 64 presses posters and the like in advance under the action of the compression spring 63, the posters contacted by the blade 62 are pressed to be close to the blade 4 and cannot tilt, and the blade 62 can conveniently cut the posters and the like.

The pressure head 64 is formed with a heating chamber therein, in which heating wires are installed, and heat conductive liquid is filled in the heating chamber. The outer wall of the installation box 5 is also provided with a control box 56, a storage battery and a controller are installed in the control box 56, a knob 561 for adjusting the current of the heating wire is installed on the control box 56, and the heating wire and the storage battery are respectively electrically connected with the controller. Heating wire ohmic heating heat conduction liquid, heat conduction liquid heats pressure head 64, heats poster etc. and the plastic film of some posters etc. or the very thin posters of plastic material etc. heat and soften the back and easily cut, and difficult production deckle edge like this.

As shown in fig. 2 and 3, the first connector 12 is fixedly connected to the upper and lower portions of the first mounting pipe 1, and the second connector 212 is fixedly connected to the upper and lower portions of the second mounting pipe 2. The first and second connectors 212 are respectively formed with through holes. As shown in fig. 11, two threaded holes 71 are formed at two ends of each of the two sliding rods 7, and two ends of each of the two sliding rods 7 are connected to the corresponding first and second connectors 212 by screws. The sliding rod 7 is connected with the connectors on the mounting pipes through screws, so that the sliding rod 7 is conveniently connected with and separated from the two mounting pipes, and the bulletin board is convenient to assemble and disassemble.

As shown in fig. 2, 3 and 5, the blade 4 has a first hinge rod 41 fixedly connected to one end thereof and a second hinge rod 42 fixedly connected to the other end thereof. The side wall of the first installation pipe 1 is connected with a plurality of first hinged pipes 11 corresponding to the first hinged rods 41 one by one, and one first hinged rod 41 is hinged with one first hinged pipe 11. The second mounting tube 2 comprises a first half tube 21, the outer side wall of the first half tube 21 is connected with a plurality of second hinge tubes 211 corresponding to the second hinge rods 42 one by one, and one second hinge rod 42 is hinged with one second hinge tube 211. Every blade 4 one end is articulated with first installation pipe 1, and the other end is articulated with second installation pipe 2, can dismantle between blade 4 and the installation pipe like this, conveniently makes respectively, and convenient transportation then assembles the use.

As shown in fig. 2 and 3, the second installation pipe 2 comprises a second half pipe 22 which forms a complete pipe shape with the first half pipe 21, and the two half pipes are detachably connected, so that the second installation pipe 2 can be detached, and corresponding parts can be conveniently installed inside. As shown in fig. 5 and 6, the turnover mechanism includes a first gear 43 fixedly connected to an end of the second hinge rod 42, a second gear 223 engaged with two adjacent first gears 43, and a rotation part 8 for driving the first gear 43 and the second gear 223 to rotate. A mounting portion 221 rotatably connected to a second gear 223 is fixedly coupled to an inner sidewall of the second half pipe 22. As shown in fig. 13, the rotating part 8 includes a rotating disc 81 located outside the second half pipe 22, a connecting rod 82 having one end fixedly connected to one end of the rotating disc 81, and a polygonal plug 83 fixedly connected to the other end of the connecting rod 82. As shown in fig. 3, 4, 12 and 14, a side pipe 222 is connected to the outer side wall of the second half pipe 22 at a position corresponding to one of the first gears 43, and the inside of the side pipe 222 communicates with the inside of the second half pipe 22. The first gear 43 corresponding to the side tube 222 is formed with a plug hole 431 to be plugged with the plug 83. The connecting rod 82 penetrates through the side pipe 222, a through hole provided with internal threads is formed in the side wall of the side pipe 222, and a fastening bolt for fastening the connecting rod 82 is connected with the through hole in a threaded mode. The fastening bolts are unscrewed, then the rotating disc 81 is screwed to enable the rotating part 8 to drive the first gear 43 and the second gear 223 to rotate simultaneously, all the blades 4 are enabled to rotate towards one direction simultaneously, the windward side of the panel is greatly reduced, then the fastening bolts are screwed, the rotating part 8 is enabled not to rotate, and the blades 4 cannot be turned over by wind. Compared with the prior venetian blind which is pulled by ropes, the rotating part 8 rotates the blades 4, so that the problems that the ropes are blown up and swing, potential safety hazards exist, the blades are blown by wind and the like do not exist.

As shown in fig. 1 and 2: the lower ends of the first installation pipe 1 and the second installation pipe 2 are respectively connected with a support rod 3. The lower end of the support rod 3 is fixedly connected with a chassis 31, and the upper end is fixedly connected with a connecting disc 32 connected with the installation pipe. The lower end of the installation pipe is connected with the supporting rod 3, so that the installation pipe is not required to be integrally produced with the supporting rod 3, the weight of a single part is reduced, the installation pipe is convenient to process and produce, the installation pipe can be connected with the connecting disc 32 of the supporting rod 3 through screws, and the installation pipe is convenient to assemble and disassemble. The chassis 31 may be fixed to the ground by screws so that the entire bulletin board is fixed to the ground.

If want to make cutting means can not remove about in the wind, can set up screw hole 71 near the position of connector at the slide bar 7 both ends that are close to bracing piece 3, screw hole 71 internal thread connecting bolt, screw hole 71 outer end set up the recess that can hold the spiral shell head of bolt, and the spiral shell head is the cylinder type, and the tip shaping has regular hexagon recess, and the convenient hand of putting is inserted into and is twisted the bolt. When the bolt head is unscrewed, the bolt and the connector limit the sliding sleeve 51 between the bolt and the connector, so that the cutting tool can be fixed and cannot be blown by wind.

Brief description of use: the poster etc. is pasted on the panel through glue earlier with pasting the membrane, treat that before the strong wind, especially the typhoon, rotate adjusting bolt, push out the installation box to the blade until can cutting the poster, then hand push installation box moves along the slide bar, the blade just can be cut into the poster strip of a strip to the poster like this, then is fixed cutting tool again, rotates rolling disc 90 degrees for all blades rotate 90 degrees (see figure 15 for the effect), it can to twist at last fastening bolt fastening rotation portion.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art should be able to make general changes and substitutions within the technical scope of the present invention.

Claims

1. A tripe bulletin board which characterized in that: the cutting tool comprises a first mounting pipe, a second mounting pipe opposite to the first mounting pipe, a plurality of rectangular and flaky blades mounted between the two mounting pipes, and a cutting tool which can move from the first mounting pipe to the second mounting pipe and can move from the second mounting pipe to the first mounting pipe; the blades are sequentially arranged along the axial direction of the first mounting pipe or the second mounting pipe, one end of each blade is rotatably connected with the first mounting pipe, and the other end of each blade is rotatably connected with the second mounting pipe; the cutting tool comprises a cutter, the cutter comprises a mounting plate and a plurality of blades which are arranged at one end of the mounting plate and are arranged at equal intervals, and each blade corresponds to a gap between two adjacent blades; the bulletin board also comprises a turnover mechanism which enables the blades to turn over for at least 90 degrees; the blades are arranged along the axial direction of the first mounting pipe in a side-by-side mode to form a panel.

2. A louvered bulletin board of claim 1, wherein: the cutting tool also comprises an installation box and two sliding rods for supporting the installation box; the blade-holding type cutting tool mounting device is characterized in that an accommodating cavity with an opening facing a blade and used for accommodating a cutting tool is formed in the mounting box, the upper end and the lower end of the mounting box are respectively connected with a sliding sleeve, a threaded pipe communicated with the accommodating cavity is connected to the middle of one end, away from the blade, of the mounting box, and the threaded pipe is in threaded connection with an adjusting bolt for adjusting the position of the cutting tool; the inner end of the adjusting bolt is connected with the other end of the mounting plate in an abutting mode; the upper end and the lower end of the bottom wall of the accommodating cavity corresponding to the threaded pipe are respectively fixedly connected with a guide rod, and a tensioning spring is sleeved outside the guide rod; the upper end and the lower end of the mounting plate are respectively provided with a guide hole through which a guide rod passes; one end of the tension spring is fixedly connected with the mounting plate, and the other end of the tension spring is fixedly connected with the bottom wall of the accommodating cavity; and one end of one sliding rod is connected with the upper part of the first installation pipe, the other end of the sliding rod is connected with the upper part of the second installation pipe, one end of the other sliding rod is connected with the lower part of the first installation pipe, and the other end of the sliding rod is connected with the lower part of the second installation pipe.

3. A louvered bulletin board of claim 1, wherein: pressing mechanisms are respectively arranged on two sides of the blade and comprise pressing heads and pressing springs; the length of the pressure head along the cutting direction of the blade is greater than the width of the blade in the direction, and a part of the pressure head extends to the front of the edge of the blade; one end of the compression spring is fixedly connected with the mounting plate, and the other end of the compression spring is fixedly connected with the pressure head.

4. A louvered bulletin board of claim 3, wherein: the inside shaping of pressure head has the heating chamber, install the heating wire in the heating chamber, the heating intracavity is equipped with heat conduction liquid.

5. A louvered bulletin board of claim 2, wherein: the upper part and the lower part of the first installation pipe are respectively fixedly connected with a first connector, and the upper part and the lower part of the second installation pipe are respectively fixedly connected with a second connector; through holes are formed in the first connector and the second connector respectively; threaded holes are formed in the two ends of each of the two sliding rods respectively, and the two ends of each of the two sliding rods are connected with the corresponding first connector and the corresponding second connector through screws.

6. A louvered bulletin board of claim 1, wherein: one end of each blade is connected with a first hinge rod, and the other end of each blade is connected with a second hinge rod; the side wall of the first installation pipe is connected with a plurality of first hinged pipes which correspond to the first hinged rods one by one, and one first hinged rod is hinged with one first hinged pipe; the second installation pipe is including first half pipe, the lateral wall of first half pipe is connected with a plurality of articulated pipes of second with the articulated pole one-to-one of second, and an articulated pole of second is articulated with an articulated pipe of second.

7. A louvered bulletin board of claim 6, wherein: the second installation pipe comprises a second half pipe which forms a complete pipe with the first half pipe; the turnover mechanism comprises a first gear fixedly connected with the end part of the second hinge rod, a second gear meshed with two adjacent first gears together, and a rotating part for driving the first gear and the second gear to rotate; the inner side wall of the second half pipe is fixedly connected with an installation part which is rotationally connected with a second gear; the rotating part comprises a rotating disc positioned outside the second half pipe, a connecting rod with one end connected with one end of the rotating disc, and a polygonal plug-in connector connected with the other end of the connecting rod; the outer side wall of the second half pipe is connected with a side pipe corresponding to one of the first gears, and the inside of the side pipe is communicated with the inner side of the second half pipe; the first gear corresponding to the side pipe is provided with a plug hole which is plugged with the plug connector; the connecting rod runs through the side pipe, the side pipe lateral wall shaping has the through hole that is equipped with the internal thread, and through hole threaded connection has the fastening bolt who is used for fastening the connecting rod.

8. A louvered bulletin board of claim 1, wherein: the lower ends of the first installation pipe and the second installation pipe are respectively connected with a support rod, the lower end of the support rod is connected with a chassis, and the upper end of the support rod is connected with a connecting disc connected with the installation pipes.