A new type of exhibition device

Abstract

The application discloses a novel exhibition device and belongs to the technical field of propaganda and display devices. The device comprises a mounting seat, a roller shaft, a driving device, a guide shaft, a transmission gear, a rolling page, a support rod and a rotary seat, etc. The roller shaft is rotatably arranged in the mounting seat. The roller shaft is divided into a first roller shaft and a second roller shaft. The driving device drives the first roller shaft and the second roller shaft to synchronously rotate through the transmission gear. One end of the support rod is detachably fixed on the mounting seat. The other end of the support rod is provided with the rotary seat. One end of the rolling page is wound on a roller of the first roller shaft. The other end of the rolling page is wound on a roller of the second roller shaft. Compared with the traditional single-page and single-surface display scheme of the easy pull banner and the display stand, the device has the multi-page rolling display effect. The continuous forward or reverse replacement of the page can be realized only by rotating the internal gear. The device is simple to operate, detachable and convenient to carry, and is very suitable for the scenes of exhibitions, outdoor advertisements and the like.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of publicity, exhibition, and advertising devices, and particularly relates to a novel exhibition device. BACKGROUND

[0002] Traditional poster stands, display stands, pop-up rolls, and pop-up devices are all single-page, single-sided displays, and are commonly used for exhibitions, outdoor publicity, and the like. When a user needs to display and publicize multiple pages of content, the user needs to carry a corresponding number of display devices, increasing transportation costs and assembly time. When space is limited and multiple display stands cannot be arranged, the user can only reduce the display content or shrink the display content, affecting the display effect.

[0003] To increase display content in a limited space, some technicians have proposed new rolling display solutions, such as a rolling billboard (CN95224388.1), which uses two sets of electrodes and two sets of reels to drive the middle canvas roll to roll, having the characteristics of multiple pictures and strong expression. For example, a canvas automatic rolling display stand (CN208422305U) automatically rolls and plays the canvas body through the cooperation between the glass, the box body, the motor, the first shaft, the second shaft, the first bearing, the second bearing, and the canvas body, so that the canvas body can be automatically rolled and played, making it more convenient for people to appreciate the canvas body. For example,

[0004] The above-mentioned solutions partially solve the technical problem of the inability of traditional exhibition devices to display multiple pages and multiple sides, but still have the following defects:

[0005] 1) The rolling billboard (ZL952243881) has a motor and a reel arranged at both ends of the canvas, which increases the display amount but also increases the production cost, installation cost, and overall weight. In the exhibition scene, this solution cannot be transported and quickly disassembled.

[0006] 2) The canvas automatic rolling display stand (CN208422305U) needs to be manually replaced when the canvas on one side is wound up. Each replacement requires the cover to be opened for operation, which is extremely inconvenient to use. SUMMARY

[0007] To solve the above technical problems, the present application provides a novel exhibition device that has a multi-page rolling display effect and can realize continuous forward or reverse replacement of pages by rotating an internal gear. The device is simple to operate, detachable, and easy to carry, and is very suitable for exhibition, outdoor advertising, and the like.

[0008] The present application solves the above problems through the following technical means:

[0009] The utility model provides a novel exhibition device, its characterized in being including mounting seat, roller, drive arrangement, guide shaft, transmission gear, rolling page, support rod and swivel seat, wherein: the top of mounting seat is provided with first long groove and second long groove, the roller rotatable is arranged in mounting seat, and the roller is divided into first roller and second roller, the second roller sets up in the downside of first long groove, and the first roller sets up in the side away from second long groove of second roller, the end of roller is provided with the spline shaft of connecting transmission gear, and the middle part of roller is provided with the cylinder of installing rolling page, drive arrangement sets up in mounting seat and is close to first roller arrangement, and drive arrangement is divided into manual drive arrangement and electric drive arrangement, the guide shaft sets up in the downside of second long groove, and the shaft sleeve rotatable is installed on the guide shaft,

[0010] Transmission gear includes drive gear, first transmission gear and second transmission gear, drive gear is installed on drive arrangement, first transmission gear is installed on first roller, and second transmission gear is installed on second roller, and through the rotation drive gear can drive first transmission gear and second transmission gear synchronous rotation, one end of support rod is detachably fixed on mounting seat, and the other end of support rod is installed swivel seat, one end of rolling page is wound on the cylinder of first roller, and the other end of rolling page is wound on the cylinder of second roller, and the rolling page of cylinder of second roller passes through first long groove upwards and second long groove downwards through swivel seat, and then is turned back to the cylinder of first roller through guide shaft.

[0011] Preferably, the housing of the mounting seat is assembled from a bottom plate, a front plate, a middle plate, a rear plate, and a cover plate, wherein: the cover plates on both sides are provided with buckles, connecting grooves, or screws for mounting the bottom plate, the front plate, the middle plate, and the rear plate into an integrated body.

[0012] The splicing part of the front plate and the middle plate forms the first long groove, and the splicing part of the rear plate and the middle plate forms the second long groove.

[0013] Preferably, the drive arrangement includes a drive motor, a shaft coupling, and a drive shaft, wherein: the drive motor is arranged on a mounting table inside the mounting seat, the drive motor is a stepper motor or a servo motor, and the working state of the drive motor is controlled by operation buttons on the mounting seat; the drive motor is connected to the drive shaft through the shaft coupling, and the drive shaft is provided with the drive gear.

[0014] Preferably, the rolling page between the first long groove and the swivel seat is a front rolling page, and the rolling page between the second long groove and the swivel seat is a rear rolling page, the front rolling page and the rear rolling page continuously roll to update the display content with the rotation of the roller, wherein: the rolling page is divided into a content page and reminder pages at both ends, and the reminder pages and the content page are spliced by joint holes and connecting lines.

[0015] Preferably, a guide sleeve is screwed on the housing of the mounting base, a positioning sleeve is arranged inside the mounting base, and the bottom of the support rod is vertically fixed in the positioning sleeve after passing through the guide sleeve.

[0016] Preferably, the main body of the rotating seat is composed of a seat body and a mounting sleeve, the seat body is an open-bottom cuboid shell structure, the mounting sleeve can be sleeved and positioned on the top of the support rod, a first rotating shaft and a second rotating shaft are horizontally arranged inside the seat body, and the first rotating shaft and the second rotating shaft are used for guiding the rolling page to change the moving direction.

[0017] Preferably, an axial pressing groove is arranged on the surface of the roller, a pressing strip is detachably arranged in the pressing groove, a magnetic block is arranged in the bottom counterbore of the pressing groove, a magnetic block is arranged in the bottom counterbore of the pressing strip, and the pressing groove and the pressing strip are pressed against each other to position the end of the rolling page.

[0018] Preferably, the roller shaft is further provided with a contact switch, the top of the switch contact of the contact switch is provided with a contact spring piece, the end of the contact spring piece is provided with a contact arc head, the contact arc head is used for touching a contact spring piece, the contact spring piece is a notched arc structure, one end of the contact spring piece is fixed in the mounting groove on the outer surface of the roller, the other end of the contact spring piece is automatically popped up to form an opening angle of 10° to 30° when not under stress, the contact spring piece can be pressed down and tightly wrapped when the rolling page is wound around the roller shaft, and the notched arc segment of the contact spring piece is released and popped up to trigger the contact arc head and the switch contact when the last layer of the rolling page is separated from the roller shaft.

[0019] Preferably, a moving groove and a reset torsional spring are further arranged on the two side cover plates of the mounting base, and the end of the second roller shaft is movably arranged in the moving groove, the reset torsional spring is sleeved on the mounting column of the cover plate, one end of the reset torsional spring is positioned by the limiting column, and the other end of the reset torsional spring is arranged at the end of the second roller shaft and used for pushing the second roller shaft to be close to the first roller shaft.

[0020] Preferably, the two side cover plates of the mounting base are further provided with a moving groove and a positioning buckle, and the second roller is movably arranged in the moving groove, wherein: a connecting boss at the end of the second roller is provided with a limiting cylinder, and a handle is arranged on the limiting cylinder; the positioning buckle is fixed at the end of the moving groove and comprises a positioning seat body, a first lock body, a second lock body, a first spring body and a second spring body, the middle part of the positioning seat body is protruded to form a rotating shaft seat, the bottom of the first lock body and the bottom of the second lock body are rotatably arranged on the rotating shaft seat, the two sides of the positioning seat body are provided with a bottom spring seat, the top of the first lock body and the top of the second lock body are symmetrically provided with a guide head, a gap is arranged between the guide heads, the inner sides of the middle parts of the first lock body and the second lock body are symmetrically provided with a limiting semicircular groove, and the outer sides of the middle parts of the first lock body and the second lock body are provided with a top spring seat, and the first spring body and the second spring body are respectively arranged between the bottom spring seat and the top spring seat; the limiting cylinder can enter or leave the two limiting semicircular grooves through external force.

[0021] The novel exhibition device has the following beneficial effects:

[0022] 1) The device uses a double-roller same-side arrangement scheme to realize the rolling display effect of the publicity page, and compared with the traditional pop-up banner, display stand and other single-page and single-surface display schemes, the content display amount of the scheme is increased by several times, the device has better display effect in the same narrow display space, and is very suitable for exhibition, exhibition tour, outdoor advertising and other scenes.

[0023] 2) The transmission gear of the device can be driven by a motor or a manual crank, and the two transmission gears in the meshing state can be driven to rotate by forward rotation or reverse rotation of the gear, so that the rolling page is rolled forward or backward, for example: when the canvas or drawing paper on one side is wound, manual replacement of the canvas body is no longer needed, and only the rotation direction of the gear needs to be changed.

[0024] 3) The device is provided with a pressing strip and a pressing groove on the roller, the pressing groove and the pressing strip are pressed against each other to position the end of the rolling page, and the fixing scheme can fix the display cloth or display paper without damage without other devices.

[0025] 4) The guide shaft of the device is provided with a shaft sleeve, the shaft sleeve can rotate flexibly to reduce the rolling and guiding resistance of the display cloth or display paper. In addition, the end of the guide shaft can be provided with a tensioning device, and the positional deviation of the rolling page can be compensated by adjusting the position of the guide shaft.

[0026] 5) When using the manual control scheme, the rolling page of the device is divided into content pages and reminder pages at both ends. When the user sees the reminder pages at both ends, the current rolling should be stopped to avoid damaging the drawing or paper. At this time, when changing the display page, the opposite direction should be rolled. The design of the reminder page can facilitate user operation. In addition, the reminder page and the content page are spliced through the joint hole and the connecting line, which is very suitable for the replacement and maintenance of the elastic display cloth such as flag cloth, silk cloth, and oil painting cloth.

[0027] 6) The device is also provided with a rolling shaft clutch device, which includes a moving groove and a reset torsional spring. The device can facilitate the user to separate the first rolling shaft and the second rolling shaft to replace or maintain the canvas or paper, or facilitate the user to compensate for the motion deviation of the rolling page.

[0028] 7) The device is also provided with a contact switch. The contact switch uses a new type of contact arc head scheme and a contact spring scheme. When the rolling page is wound around the rolling shaft, the contact spring can be pressed down and tightly wrapped. When the last layer of the rolling page is separated from the rolling shaft, the necking arc segment of the contact spring is released and pops up to trigger the contact arc head and the switch contact. This scheme can accurately detect whether the rolling page has reached the end at a low cost to control whether the driving motor changes direction.

[0029] 8) The device is also provided with a positioning buckle. The positioning buckle can facilitate the positioning of the rolling shaft, which can facilitate the user to separate the first rolling shaft and the second rolling shaft to replace or maintain the canvas or paper. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the present application, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0031] Figure 1 is a schematic diagram of the overall side structure of the present application;

[0032] Figure 2 is a schematic diagram of the overall front structure of the present application;

[0033] Figure 3 is a schematic diagram of the internal structure of the mounting seat of the present application;

[0034] Figure 4 is a schematic diagram of the driving device structure of the present application;

[0035] Figure 5 is a schematic diagram of the rotating seat structure of the present application;

[0036] Figure 6 is a schematic diagram of the support rod splicing of the present application;

[0037] Figure 7 is the structure diagram of the reminding page of the present application;

[0038] Figure 8 is the schematic diagram of the transverse horizontal arrangement of the present application;

[0039] Figure 9 is the structure diagram of the roller of the present application;

[0040] Figure 10 is the structure diagram of the pressing groove and the pressing strip of the present application;

[0041] Figure 11 is the schematic diagram of the side installation of the contact switch of the present application;

[0042] Figure 12 is the schematic diagram of the middle installation of the contact switch of the present application;

[0043] Figure 13 is the schematic diagram of the unopened contact spring of the present application;

[0044] Figure 14 is the schematic diagram of the opened contact spring of the present application;

[0045] Figure 15 is the schematic diagram of the storage of the contact spring of the present application;

[0046] Figure 16 is the schematic diagram of the operation button of the present application;

[0047] Figure 17 is the structure diagram of the reset torsion spring and the tensioning torsion spring of the present application;

[0048] Figure 18 is the schematic diagram of the working process of the reset torsion spring of the present application;

[0049] Figure 19 is the structure diagram of the limiting cylinder of the present application;

[0050] Figure 20 is the schematic diagram of the installation position of the positioning buckle of the present application;

[0051] Figure 21 is the structure diagram of the positioning buckle of the present application.

[0052] 1- mount, 101- first long slot, 102- second long slot, 103- bottom plate, 104- front plate, 105- middle plate, 106- rear plate, 107- cover plate, 108- operation button, 109- moving slot, 2- roller shaft, 201- first roller shaft, 202- second roller shaft, 203- spline shaft, 204- roller, 205- pressing slot, 206- pressing strip, 207- magnetic suction block, 208- contact spring, 209- mounting slot, 210- connecting boss, 211- limiting cylinder, 212- handle, 3- driving device, 301- driving motor, 302- shaft coupling, 303- driving shaft, 304- mounting table, 4- guide shaft, 401- shaft sleeve, 402- tensioning slot, 403- tensioning torsional spring, 5- transmission gear, 501- driving gear, 502- first transmission gear, 503- second transmission gear, 6- rolling page, 601- front rolling page, 602- rear rolling page, 603- content page, 604- reminder page, 605- joint hole, 7- support rod, 701- guide sleeve, 702- positioning sleeve, 703- connecting screw head, 704- connecting screw hole, 8- rotary seat, 801- seat body, 802- mounting sleeve, 803- first rotary shaft, 804- second rotary shaft, 9- contact switch, 901- switch contact, 902- contact spring, 903- contact arc head, 10- reset torsional spring, 1001- mounting column, 1002- limiting column, 11- positioning buckle, 1101- positioning seat body, 1102- first lock body, 1103- second lock body, 1104- first spring body, 1105- second spring body, 1106- rotary shaft seat, 1107- bottom spring seat, 1108- guide head, 1109- limiting semicircular slot, 1110- top spring seat. DETAILED DESCRIPTION

[0053] In the description of the present application, it needs to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0054] The present application will be described in detail below with reference to the accompanying drawings.

[0055] Example one

[0056] like Figures 1 to 8 As shown, the exhibition device includes a mounting base 1, rollers 2, a drive unit 3, a guide shaft 4, a transmission gear 5, a scrolling page 6, a support rod 7, and a rotating base 8. In the figure, the top of the mounting base 1 is provided with a first long groove 101 and a second long groove 102, which are of equal width and height. The rollers 2 are rotatably mounted within the mounting base 1. The rollers 2 are divided into a first roller 201 and a second roller 202. The second roller 202 is located below the first long groove 101, and the first roller 201 is located on the side of the second roller 202 away from the second long groove 102. The ends of the rollers 2 are provided with splined shafts 203 for connecting to the transmission gear 5, and the middle of the rollers 2 is provided with rollers 204 for mounting the scrolling page 6. The rollers 204 are fixedly connected to the rollers 2. The end of the splined shaft 203 can be directly installed in the rotating shaft hole of the mounting base 1 housing, or a bearing can be optionally installed.

[0057] In this embodiment, the mounting base 1 is a modular structure, and its shell is assembled from a base plate 103, a front plate 104, a middle plate 105, a rear plate 106, and a cover plate 107. The cover plates 107 on both sides are provided with buckles, connecting grooves, or screws to install the base plate 103, the front plate 104, the middle plate 105, and the rear plate 106 into a whole. The joint between the front plate 104 and the middle plate 105 forms a first long groove 101, and the joint between the rear plate 106 and the middle plate 105 forms a second long groove 102.

[0058] In the figure, the drive device 3 is located inside the mounting base 1 and close to the first roller 201. The drive device 3 is divided into a manual drive device and an electric drive device. It should be noted that when using the manual drive device, only a manual crank is needed at the end of the guide shaft 4. In this case, the drive gear 501 is not needed; only the first transmission gear 502 and the second transmission gear 503 mesh with each other. When using the electric drive scheme, the transmission gear 5 includes the drive gear 501, the first transmission gear 502, and the second transmission gear 503. The drive gear 501 is mounted on the drive device 3, the first transmission gear 502 is mounted on the first roller 201, and the second transmission gear 503 is mounted on the second roller 202. By rotating the drive gear 501, the first transmission gear 502 and the second transmission gear 503 can be driven to rotate synchronously.

[0059] It should be noted that the driving device 3 comprises a driving motor 301, a shaft coupling 302 and a driving shaft 303, wherein the driving motor 301 is arranged on a mounting table 304 inside the mounting base 1, the driving motor 301 is a step motor or a servo motor, and the working state of the driving motor 301 is controlled by the operation button 108 on the mounting base 1; the driving motor 301 is connected to the driving shaft 303 through the shaft coupling 302, and the driving shaft 303 is provided with a driving gear 501. In the figure, the operation button 108 comprises a forward turning button and a backward turning button.

[0060] In the figure, the guide shaft 4 is arranged at the lower side of the second long slot 102, and a shaft sleeve 401 is rotatably arranged on the guide shaft 4, which can significantly reduce the guide resistance and assist the rolling page 6 to turn and smoothly wind on the roller 204 of the first roller shaft 201.

[0061] In the embodiment, one end of the support rod 7 is detachably fixed on the mounting base 1, and the other end of the support rod 7 is provided with a rotary seat 8. In the figure, a guide sleeve 701 is threadedly arranged on the shell of the mounting base 1, and a positioning sleeve 702 is arranged inside the mounting base 1, and the bottom of the support rod 7 is vertically fixed in the positioning sleeve 702 after passing through the guide sleeve 701, wherein the support rod 7 is spliced by connecting nuts 703 and connecting screw holes 704. The main body of the rotary seat 8 comprises a seat body 801 and a mounting sleeve 802, wherein the seat body 801 is a cuboid shell structure with an open bottom, and the mounting sleeve 802 can be sleeved and positioned on the top of the support rod 7; the first rotary shaft 803 and the second rotary shaft 804 are horizontally arranged inside the seat body 801, and are used to guide the rolling page 6 to change the moving direction.

[0062] In the embodiment, one end of the rolling page 6 is wound on the roller 204 of the first roller shaft 201, and the other end of the rolling page 6 is wound on the roller 204 of the second roller shaft 202, and the rolling page 6 of the roller 204 of the second roller shaft 202 passes through the first long slot 101 upwards and passes through the rotary seat 8 downwards to the second long slot 102, and then turns back to the roller 204 of the first roller shaft 201 through the guide shaft 4. In the figure, the rolling page 6 between the first long slot 101 and the rotary seat 8 is a front rolling page 601, and the rolling page 6 between the second long slot 102 and the rotary seat 8 is a rear rolling page 602, and the front rolling page 601 and the rear rolling page 602 continuously roll with the rotation of the roller shaft 2 to update the display content. When manual rolling or motor hand control is adopted, the rolling page 6 is divided into a content page 603 and two end prompt pages 604, and the user should stop the current rolling when seeing the two end prompt pages to avoid pulling the drawing or paper, at this time, the display page should be replaced in the opposite direction, and the design of the prompt page can facilitate the user operation. In addition, the prompt page and the content page are spliced by the joint hole and the connecting line, which is very suitable for the replacement and maintenance of the display cloth such as flag cloth, silk cloth and oil painting cloth.

[0063] It should be noted that the device uses a double roller same side arrangement scheme, which realizes the rolling display effect of the promotional page. Compared with the traditional pop-up, display stand and other single page, single side display scheme, the content display amount of this scheme is increased by several times. In the same narrow display space, the device has better display effect and is very suitable for exhibition, exhibition, outdoor advertising and other scenes. By driving the gear in the forward or reverse direction, the two transmission gears in the meshing state can be driven to rotate, thereby driving the rolling page to roll forward or backward. For example: when the canvas or drawing paper on one side is wound, manual replacement of the canvas body is no longer needed, and only the rotation direction of the gear needs to be changed.

[0064] It should be further noted that the device can be arranged vertically as a pop-up, display stand, etc.; or arranged horizontally as a door head, rolling advertisement, etc., as shown in Figure 8 .

[0065] Example two

[0066] As shown in Figure 9 and Figure 10 , the surface of the roller 204 is axially provided with a pressing groove 205, and a pressing strip 206 is detachably installed inside the pressing groove 205. The pressing strip 206 can be made of elastic material to facilitate the mutual extrusion of the extrusion groove and the pressing strip for positioning the end of the rolling page. This fixing scheme can fix the display cloth or display paper without damaging other devices.

[0067] In actual application, in order to increase the extrusion force of the pressing groove and the pressing strip, a magnetic block 207 can be installed in the bottom hole of the pressing groove 205, and a magnetic block 207 or a metal pressing strip is installed in the bottom hole of the pressing strip 206. At this time, the end of the rolling page is more reliable.

[0068] Example three

[0069] As shown in Figures 11 to 16 , in order to realize automatic page turning of the motor, it is necessary to accurately detect whether the rolling page 6 is still wound on the roller 2 to avoid tearing of the rolling page 6 due to excessive rotation of the roller 2. At this time, a contact switch 9 is arranged on one side of the roller 2. The body of the contact switch 9 adopts an existing device, and a new type of contact device is added to the head of the contact switch 9. The top of the switch contact 901 of the contact switch 9 is provided with a contact spring 902, and the end of the contact spring 902 is provided with a contact arc head 903. The contact arc head 903 can accurately detect the contact spring 208.

[0070] It should be noted that the contact switch 9 can be arranged in the middle or on both sides of the roller 2, as shown in Figure 11 and Figure 12 When the roller 2 is provided with a gear at one end, a Figure 11The arrangement mode that when the two ends of the roller shaft 2 are configured with gears, adopts Figure 12 The arrangement mode.

[0071] In the figure, the outer surface of the roller 204 is provided with a mounting groove 209, one end of the contact spring 208 is fixed in the mounting groove 209, the depth of the mounting groove 209 is consistent with the thickness of the contact spring 208, the contact spring 208 is a necked arc structure, the overall arc of which is consistent with the arc of the mounting groove 209, and the tail end thereof extends inwardly. When the contact spring 208 is wrapped by the rolling page 6, it can be tightly fitted in the mounting groove 209 without protruding at the top. The other end of the contact spring 208 automatically pops up to form an opening angle a of 10° to 30° when not under stress. The length of the contact spring 208 is 4 to 10 cm, and the specific value is related to the overall length of the rolling page 6. The longer the rolling page 6, the larger the winding diameter, and the farther the contact switch 9 needs to be from the outer surface of the roller 204. At this time, the contact spring 208 is longer.

[0072] In actual work, as shown in Figure 13 , the rolling page 6 is separated from the roller shaft 2 layer by layer, but the innermost layer of the rolling page 6 presses down the contact spring 208 and tightly wraps it. When the last layer of the rolling page 6 is separated from the roller shaft 2, the necked arc segment of the contact spring 208 releases and pops up. As shown in Figure 14 , further rotation will trigger the contact arc head 903 and the switch contact 901. The motor controller receives the position detection signal and starts to reverse. The rolling page 6 continues to wind the roller shaft 2, which can press down the contact spring 208 and tightly wrap it. As shown in Figure 15 , thereafter, the rolling page 6 of the other roller shaft 2 is wrapped layer by layer until all the rolling pages 6 are separated and release the contact spring 208 to trigger the motor to reverse rotation. Figure 16 In the figure, the AUTO key is an automatic cycle rolling key, which corresponds to the above-mentioned cycle work. In actual work, periodic page turning can be adopted, for example, the motor is rotated forward by 100 turns, a piece of content is replaced, and after 10 minutes, the motor is rotated forward by 100 turns again. This scheme can accurately detect whether the rolling page has reached the end to control whether the driving motor changes direction at low cost.

[0073] Embodiment Four

[0074] As shown in Figure 17 and Figure 18 , the two side cover plates 107 of the mounting seat 1 are further provided with a moving groove 109 and a reset torsional spring 10. The tail end of the second roller shaft 202 is movably arranged in the moving groove 109. Specifically, the moving groove 109 can be horizontally arranged or obliquely arranged. When obliquely arranged, the low end thereof is close to the first roller shaft 201. The purpose is to utilize gravity to increase the automatic engagement force.

[0075] In the figure, the reset torsion spring 10 is sleeved on the mounting column 1001 of the cover plate 107, one end of the reset torsion spring 10 is positioned by the limiting column 1002, and the other end of the reset torsion spring 10 is arranged at the end of the second roller shaft 202 and used for pushing the second roller shaft 202 close to the first roller shaft 201. The device is essentially a roller shaft clutch device, which can conveniently separate the first roller shaft and the second roller shaft for replacing or maintaining the canvas or drawing paper or conveniently compensate for the motion deviation of the rolling page. When the second roller shaft 202 is pushed backward by two hands and the elastic force of the reset torsion spring 10 is overcome, the first roller shaft and the second roller shaft are separated, which is convenient for the user to adjust.

[0076] Embodiment five

[0077] As shown in Figure 17 and Figure 20 , both ends of the guide shaft 4 can also be provided with a tensioning device, which specifically includes a tensioning groove 402 and a tensioning torsion spring 403. The tensioning groove 402 is a horizontal waist-shaped groove, and the guide shaft 4 can move forward and backward in the groove. The main body of the tensioning torsion spring 403 is fixed on the cover plate 107 of the mounting seat 1, and the working arm of the tensioning torsion spring 403 is connected to the end of the guide shaft 4. When the tensioning torsion spring 403 is not stressed, the guide shaft 4 is located at the middle position of the tensioning groove 402. When the rolling page 6 rolls, the guide shaft 4 can move forward and backward to compensate for the motion deviation and error, and ensure that the rolling page 6 is smoothly wound on the roller 204.

[0078] It should be noted that the end of the tensioning torsion spring 403 can be a U-shaped opening, which is used to semi-openly connect the guide shaft 4. The end of the tensioning torsion spring 403 can also be circular and sleeved on the guide shaft 4.

[0079] Embodiment six

[0080] As shown in Figures 19 to 21 , the two side cover plates 107 of the mounting seat 1 are also provided with a moving groove 109 and a positioning buckle 11. The second roller shaft 202 is movably arranged in the moving groove 109, and the connecting boss 210 at the end of the second roller shaft 202 is provided with a limiting cylinder 211. The limiting cylinder 211 is provided with a handle 212 and can realize a latch effect with the positioning buckle 11. The handle 212 can be conveniently used for pushing and pulling.

[0081] The positioning buckle 11 is fixed at the end of the moving groove 109 and includes a positioning seat body 1101, a first lock body 1102, a second lock body 1103, a first spring body 1104 and a second spring body 1105. The middle part of the positioning seat body 1101 is protruded to form a rotating shaft seat 1106. The bottom of the first lock body 1102 and the bottom of the second lock body 1103 are installed on the rotating shaft seat 1106 through a rotating shaft. The two sides of the positioning seat body 1101 are provided with bottom spring seats 1107. The top of the first lock body 1102 and the top of the second lock body 1103 are symmetrically provided with guide heads 1108. The guide heads 1108 are provided with a gap therebetween. The inner side of the middle part of the first lock body 1102 and the inner side of the middle part of the second lock body 1103 are symmetrically provided with limiting semicircular grooves 1109. The outer side of the middle part of the first lock body 1102 and the outer side of the middle part of the second lock body 1103 are provided with top spring seats 1110. The first spring body 1104 and the second spring body 1105 are respectively installed between the bottom spring seats 1107 and the top spring seats 1110. The limiting cylinder 211 can enter or leave the two limiting semicircular grooves 1109 through an external force. The bottom of the first lock body 1102 and the bottom of the second lock body 1103 can rotate around the rotating shaft seat 1106. Due to the arrangement of the first spring body 1104 and the second spring body 1105, the bottom of the first lock body 1102 and the bottom of the second lock body 1103 are pushed to be close to each other. Due to the arrangement of the limiting groove 1111 at the root position of the second lock body 1103 and the limiting protrusion at the root position of the first lock body 1102, the first lock body 1102 and the second lock body 1103 still have the gap therebetween after being close to each other.

[0082] It should be noted that when the external force pushes the limiting cylinder 211 downward, the outer wall of the limiting cylinder 211 contacts and extrudes the gap. Due to the fact that the guide heads 1108 can rotate around the rotating shaft seat 1106, when the external force is greater than the spring resistance, the gap between the guide heads 1108 is increased, the limiting cylinder 211 enters between the two limiting semicircular grooves 1109, at this time, the first transmission gear 502 and the second transmission gear 503 are engaged. When the external force pushes the limiting cylinder 211 upward, the outer wall of the limiting cylinder 211 contacts and extrudes the inner wall of the guide heads 1108. When the external force is greater than the spring resistance, the gap between the guide heads 1108 is increased, the limiting cylinder 211 leaves the limiting semicircular grooves 1109, at this time, the first transmission gear 502 and the second transmission gear 503 are separated. The device is essentially a roller clutch device, which can facilitate the user to separate the first roller and the second roller to replace or maintain the canvas or drawing paper.

[0083] It should be pointed out finally that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; and although the present application has been described in detail with reference to the foregoing embodiments, it should be appreciated by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An exhibition installation, characterized in that, It includes a mounting base (1), a roller (2), a drive unit (3), a guide shaft (4), a transmission gear (5), a rolling blade (6), a support rod (7), and a rotary seat (8), wherein: The top of the mounting base (1) is provided with a first long slot (101) and a second long slot (102). The roller (2) is rotatably disposed in the mounting base (1). The roller (2) is divided into a first roller (201) and a second roller (202). The second roller (202) is disposed on the lower side of the first long groove (101), and the first roller (201) is disposed on the side of the second roller (202) away from the second long groove (102). The end of the roller (2) is provided with a splined shaft (203) for connecting the transmission gear (5), and the middle part of the roller (2) is provided with a roller (204) for mounting the scroll (6). The drive device (3) is located in the mounting base (1) and close to the first roller (201). The drive device (3) is divided into a manual drive device and an electric drive device. The guide shaft (4) is located on the lower side of the second long groove (102), and a bushing (401) is rotatably mounted on the guide shaft (4). The transmission gear (5) includes a drive gear (501), a first transmission gear (502), and a second transmission gear (503). The drive gear (501) is mounted on the drive device (3), the first transmission gear (502) is mounted on the first roller (201), and the second transmission gear (503) is mounted on the second roller (202). By rotating the drive gear (501), the first transmission gear (502) and the second transmission gear (503) can be driven to rotate synchronously. One end of the support rod (7) is detachably fixed to the mounting base (1), and the other end of the support rod (7) is equipped with the rotary seat (8). One end of the scroll page (6) is wrapped around the roller (204) of the first roller (201), and the other end of the scroll page (6) is wrapped around the roller (204) of the second roller (202). The scroll page (6) of the roller (204) of the second roller (202) passes upward through the first long groove (101), passes through the rotary seat (8) downward through the second long groove (102), and then turns back to the roller (204) of the first roller (201) after being turned by the guide shaft (4). A contact switch (9) is also provided on one side of the roller (2). A contact spring (902) is provided at the top of the switch contact (901) of the contact switch (9), and a contact arc head (903) is provided at the end of the contact spring (902). The contact arc head (903) is used to touch the contact spring (208). The contact spring (208) has a constricted arc structure. One end of the contact spring (208) is fixed in the mounting groove (209) on the outer surface of the roller (204). The other end of the contact spring (208) automatically springs up when not under force, forming an opening angle (α) of 10° to 30°. When the scroll page (6) wraps around the roller (2), it can press down the contact spring (208) and tightly wrap it; When the last scroll page (6) disengages from the roller (2), the constricted arc segment of the contact spring (208) is released and springs up to trigger the contact arc head (903) and the switch contact (901).

2. The exhibition device according to claim 1, characterized in that, The housing of the mounting base (1) is assembled from a base plate (103), a front plate (104), a middle plate (105), a rear plate (106), and a cover plate (107), wherein: The cover plates (107) on both sides are provided with buckles, connecting grooves or screws for installing the bottom plate (103), front plate (104), middle plate (105) and rear plate (106) into one piece; The joint between the front plate (104) and the middle plate (105) forms a first long groove (101), and the joint between the rear plate (106) and the middle plate (105) forms a second long groove (102).

3. The exhibition device according to claim 1, characterized in that, The drive device (3) includes a drive motor (301), a coupling (302), and a drive shaft (303), wherein: The drive motor (301) is mounted on the mounting platform (304) inside the mounting base (1). The drive motor (301) is a stepper motor or a servo motor. The working state of the drive motor (301) is controlled by the operation button (108) on the mounting base (1). The drive motor (301) is connected to the drive shaft (303) via a coupling (302), and a drive gear (501) is mounted on the drive shaft (303).

4. The exhibition device according to claim 1, characterized in that, The scroll page (6) located between the first long slot (101) and the rotary seat (8) is the front scroll page (601), and the scroll page (6) located between the second long slot (102) and the rotary seat (8) is the back scroll page (602). The front scroll page (601) and the back scroll page (602) scroll continuously with the rotation of the roller (2) to update the displayed content, wherein: The scrolling page (6) is divided into a content page (603) and reminder pages (604) at both ends. The reminder pages (604) and the content page (603) are spliced ​​together by a seam hole (605) and a connecting line.

5. The exhibition device according to claim 1, characterized in that, The mounting base (1) has a guide sleeve (701) installed on its housing by thread. The mounting base (1) has a positioning sleeve (702) inside. The bottom of the support rod (7) passes through the guide sleeve (701) and is vertically fixed in the positioning sleeve (702). The support rods (7) are spliced ​​together by connecting screw heads (703) and connecting screw holes (704).

6. The exhibition device according to claim 1, characterized in that, The main body of the rotary seat (8) consists of a seat body (801) and a mounting sleeve (802), wherein: The base (801) is a cuboid shell structure with an open bottom, and the mounting sleeve (802) can be fitted and positioned on the top of the support rod (7); The seat (801) has a first rotating shaft (803) and a second rotating shaft (804) horizontally mounted inside. The first rotating shaft (803) and the second rotating shaft (804) are used to guide the scroll page (6) to change its direction of movement.

7. The exhibition device according to claim 1, characterized in that, The roller (204) has a pressure groove (205) on its surface along the axial direction. A pressure strip (206) is detachably installed inside the pressure groove (205). A magnetic block (207) is installed in the bottom countersunk hole of the pressure groove (205). A magnetic block (207) is installed in the bottom countersunk hole of the pressure strip (206). The pressure groove (205) and the pressure strip (206) press against each other to position the end of the scroll page (6).

8. The exhibition device according to claim 1, characterized in that, The mounting base (1) is provided with a moving groove (109) and a return torsion spring (10) on both side cover plates (107). The end of the second roller (202) is movably disposed in the moving groove (109), wherein: The reset torsion spring (10) is mounted on the mounting post (1001) of the cover plate (107). One end of the reset torsion spring (10) is positioned by the limiting post (1002), and the other end of the reset torsion spring (10) is located at the end of the second roller (202) to push the second roller (202) closer to the first roller (201).

9. The exhibition device according to claim 1, characterized in that, The mounting base (1) is provided with movable grooves (109) and positioning buckles (11) on both side cover plates (107). The second roller (202) is movably disposed in the movable groove (109), wherein: A limiting cylinder (211) is installed on the connecting boss (210) at the end of the second roller (202), and a handle (212) is provided on the limiting cylinder (211). The positioning buckle (11) is fixed to the end of the moving groove (109) and includes a positioning seat (1101), a first lock body (1102), a second lock body (1103), a first spring body (1104), and a second spring body (1105). The positioning seat (1101) has a protrusion in the middle to form a pivot seat (1106). The bottom of the first lock body (1102) and the bottom of the second lock body (1103) are mounted on the pivot seat (1106) via a pivot. Bottom spring seats (1107) are provided on both sides of the positioning seat (1101). The first lock body (1102) The top of the first lock body (1102) and the top of the second lock body (1103) are symmetrically provided with guide heads (1108), and a passage gap is provided between the guide heads (1108). The inner side of the middle part of the first lock body (1102) and the inner side of the middle part of the second lock body (1103) are symmetrically provided with limiting semi-circular grooves (1109). The outer side of the middle part of the first lock body (1102) and the outer side of the middle part of the second lock body (1103) are provided with top spring seats (1110). The first spring body (1104) and the second spring body (1105) are respectively installed between the bottom spring seat (1107) and the top spring seat (1110). The limiting cylinder (211) can enter or leave between the two limiting semicircular grooves (1109) by external force.

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