Telescopic door sill structure

Abstract

The invention relates to the technical field of door railings, and particularly discloses a telescopic door railing structure which comprises an upper fixing seat, a lower fixing seat, a rotary drum arranged between the upper fixing seat and the lower fixing seat and capable of rotating around the axis of the rotary drum, and separation cloth wound on the rotary drum, a torsion spring is arranged in the rotary drum, and a shell is arranged on the outer side of the rotary drum. The upper fixing seat and the lower fixing seat are installed at the two ends of the shell respectively, an opening is formed in the shell, and a rolling brush assembly is installed at the opening. The separation cloth is located in the inner cavity of the shell after being wound on the outer side of the rotary drum, and one end of the separation cloth extends out of the opening in the shell and penetrates through the winding brush assembly; when the separation cloth extends out of the shell or is wound into the shell, the winding brush assembly can clean the surfaces of the two sides of the separation cloth so as to eliminate dust and static electricity on the surfaces of the separation cloth. Through the design of automatic cleaning and static elimination, the practicability and durability of the product are greatly improved, and the display device is particularly suitable for scenes needing long-term display or high-dust environments.

Description

Technical Field

[0001] This application relates to the technical field of gate barriers, and particularly to a retractable gate barrier structure. Background Art

[0002] As a common space separation device, the retractable gate barrier is mainly applied to the interior of a residence or in a courtyard landscape. This device realizes the physical partition function through a retractable structure and can quickly divide a temporary activity area according to the usage requirements. In an indoor scenario, its flexible characteristics support the dynamic partitioning of spaces such as the living room and corridor; in an outdoor courtyard environment, it can effectively plan different functional courtyard partitions.

[0003] In the related art, the retractable gate barrier includes fixed seats, a rotating cylinder, and a partition cloth. There are two fixed seats, which are respectively located at both ends of the rotating cylinder and are rotatably connected to the fixed seats. One end of the partition cloth is fixed to the rotating cylinder, and the partition cloth is wound around the rotating cylinder. A torsion spring is arranged inside the rotating cylinder. When a person pulls the free end of the partition cloth, the rotating cylinder rotates, thereby driving the torsion spring to rotate. The torsion spring forms a rotational restoring force. When the free end of the partition cloth is pulled a certain distance and fixed, under the action of the rotational restoring force of the torsion spring, the partition cloth will be in a taut state. When the free end of the partition cloth is released, under the action of the rotational restoring force of the torsion spring, the rotating cylinder rotates in the opposite direction, thereby realizing the automatic winding of the partition cloth.

[0004] It is found in actual use that after the partition cloth of the retractable gate barrier is unfolded and displayed for a long time, dust is easily accumulated on its surface. The accumulation of dust easily affects the information display effect on the surface of the partition cloth. Moreover, especially when the partition cloth with a rubber layer on the surface is displayed, it is easily electrostatically charged on the surface, and the static electricity easily causes dust to be adsorbed on the surface of the partition cloth. Cleaning this adsorbed dust manually is quite cumbersome. Summary of the Invention

[0005] The purpose of at least one specific embodiment of the present invention is to solve the defects existing in the prior art and provide a retractable gate barrier structure.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] A retractable gate barrier structure, comprising:

[0008] An upper fixed seat and a lower fixed seat;

[0009] A rotating cylinder, which is arranged between the upper fixed seat and the lower fixed seat and is configured to be rotatable about its own axis;

[0010] A partition cloth, which is wound around the rotating cylinder. A torsion spring is arranged inside the rotating cylinder, and the torsion spring is used to urge the rotating cylinder to rotate about its own axis in one direction, so as to realize that the rotating cylinder can wind up the partition cloth;

[0011] A housing is provided on the outer side of the rotating cylinder. The upper fixed seat and the lower fixed seat are respectively installed at both ends of the housing. The housing is provided with an opening, and a winding brush assembly is installed at the opening.

[0012] After the separating cloth is wound on the outer side of the rotating cylinder, it is located in the inner cavity of the housing, and one end of the separating cloth extends out from the opening on the housing and passes through the winding brush assembly.

[0013] When the separating cloth extends out from the housing or is wound into the housing, the winding brush assembly can clean both surfaces of the separating cloth to remove dust and static electricity on the surface of the separating cloth.

[0014] Furthermore, the winding brush assembly includes:

[0015] A brush housing, which is installed at the opening of the housing. The brush housing is provided with a first outlet and a second outlet.

[0016] A first brush, which is installed on both sides of the inner wall of the first outlet. When the separating cloth passes through the first outlet, the ends of the first brush skim over both surfaces of the separating cloth to remove dust on both surfaces of the separating cloth.

[0017] A second brush, which is installed on both sides of the inner wall of the second outlet. When the separating cloth passes through the second outlet, the ends of the second brush skim over both surfaces of the separating cloth to remove static electricity on both surfaces of the separating cloth.

[0018] An adjusting assembly, which is arranged on the brush housing and is suitable for adjusting the distance between the two second brushes on the inner wall of the second outlet.

[0019] A dust suction assembly, which is installed on the lower fixed seat and is communicated with the inner cavity of the brush housing.

[0020] Furthermore, the first brush is an anti-static nylon brush, and the second brush includes a metal back plate, a carbon fiber brush installed on the metal back plate, and the metal back plate is grounded through a metal piece.

[0021] Furthermore, the adjusting assembly includes:

[0022] An adjusting bolt, which passes through the threaded hole on the brush housing and faces the back of the second brush.

[0023] A guide rail, which is installed at both ends of the inner wall of the second outlet.

[0024] A slider, which is fixed at the end of the second brush and is slidably matched with the guide groove on the guide rail.

[0025] A spring, one end of which is fixedly connected to the inner cavity wall of the brush housing, and the other end is connected to the slider.

[0026] When the adjusting bolts on both sides of the brush housing rotate forward, their ends can abut against the back of the second brush, causing the two second brushes in the second outlet to approach each other and stretching the spring.

[0027] When the adjusting bolts on both sides of the brush housing rotate backward, their ends separate from the back of the second brush, the stretched spring tends to reset, and drives the two second brushes to move away from each other.

[0028] Furthermore, the dust suction assembly includes a suction pump disposed in the lower fixed seat, a suction pipe connected to the suction pump, and the end of the suction pipe is communicated with the inner cavity of the brush housing.

[0029] Furthermore, the retractable door barrier structure further includes: an adjusting device, the adjusting device includes an adjusting rod, a torsion spring, and an adjusting mechanism, one end of the torsion spring is connected to the rotating cylinder, and the other end of the torsion spring is connected to the adjusting rod;

[0030] Wherein, the adjusting mechanism is a one-way rotating mechanism, and the adjusting mechanism is configured to enable the adjusting rod to rotate unidirectionally around its central axis. The adjusting rod is used to drive the torsion spring to twist through its own unidirectional rotation, complete the compression of the torsion spring, and further increase the torsional deformation amount of the torsion spring.

[0031] Furthermore, the adjusting mechanism includes:

[0032] An adjusting ratchet, which is connected to the adjusting rod;

[0033] An adjusting pawl, which is matched with the adjusting ratchet. The lower fixed seat is provided with an installation cavity, and both the adjusting ratchet and the adjusting pawl are arranged in the installation cavity. The adjusting ratchet is arranged to be rotatable around its own axis. The lower fixed seat is convexly provided with a rotating rod, and the adjusting pawl is sleeved on the rotating rod through a through hole provided on itself;

[0034] A first abutting spring, which is used to push the adjusting pawl to maintain the tendency of inserting into the tooth groove of the adjusting ratchet;

[0035] Furthermore, the retractable door barrier structure further includes a locking device, the locking device is arranged in the upper fixed seat, and the locking device includes:

[0036] A locking ratchet, which is connected to the upper end of the rotating cylinder;

[0037] A locking pawl, which is matched with the locking ratchet. The upper fixed seat is convexly provided with a rotating shaft, and the locking pawl is sleeved on the rotating shaft through a through hole provided on itself;

[0038] A second abutting spring, which is used to push the locking pawl to maintain the tendency of inserting into the tooth groove of the locking ratchet.

[0039] Further, the locking device further includes an unlocking component, which includes a pushing-away turntable and a pushing-away convex portion arranged on the side of the pushing-away turntable. The pushing-away turntable is configured to be rotatable around its own axis;

[0040] The locking pawl protrudes with a pushed-away portion. The pushing-away convex portion is driven to rotate around the axis of the pushing-away turntable, and then the pushing-away convex portion pushes the pushed-away portion, causing the pushed-away portion to rotate around the axis of the rotating shaft, so as to drive the locking pawl to disengage from the tooth groove in the locking ratchet.

[0041] Further, the upper fixing seat is provided with a protective shell, and the protective shell is provided with a placement cavity for accommodating the locking knob. The locking knob is connected to the pushing-away turntable.

[0042] The beneficial effects of the present application are as follows: 1. The housing of the present application is provided with an opening, and a winding brush assembly is installed at the opening. When the partition cloth extends out of or winds into the housing, the winding brush assembly can clean the two side surfaces of the partition cloth to eliminate dust and static electricity on the surface of the partition cloth. By setting the winding brush assembly (including the first brush and the second brush), during the winding or unwinding process of the partition cloth, the brushes automatically clean the two side surfaces, remove dust accumulation and neutralize static electricity, significantly reducing dust adhesion; the first brush (anti-static nylon brush) is used to physically remove dust, and the second brush (carbon fiber brush combined with a metal back plate) conducts static electricity to the ground through grounding, and the dual effects improve the cleaning effect;

[0043] 2. The grounding design of the metal back plate of the second brush can quickly release the static electricity on the surface of the partition cloth, avoiding static electricity adsorption of dust, especially suitable for easily charged materials such as rubber-coated partition cloth. The conductive property of the carbon fiber brush further enhances the static electricity dissipation efficiency, reducing dust adsorption from the source;

[0044] 3. The adjusting component can flexibly adjust the distance between the second brushes through the cooperation of the spring and the adjusting bolt, adapt to partition cloths of different thicknesses or materials, ensure that the brushes are in close contact with the cloth surface, and improve the cleaning and static electricity elimination effects;

[0045] 4. The dust suction component (suction pump and suction pipe) sucks the dust swept off by the brushes and collects it centrally, avoiding secondary dispersion of dust, keeping the environment clean, and reducing the frequency of manual cleaning;

[0046] On the basis of retaining the flexible partitioning function of the traditional retractable railing, the present invention greatly improves the practicability and durability of the product through automated cleaning and static electricity elimination design, especially suitable for scenarios that require long-term display or high-dust environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0048] Figure 1 Isometric view of the present invention;

[0049] Figure 2 Is Figure 1 Partial enlarged schematic view at A in;

[0050] Figure 3 Isometric schematic view of another angle of the present invention;

[0051] Figure 4 Structural schematic view of the separating cloth of the present invention during unwinding;

[0052] Figure 5 Installation schematic view of the winding brush assembly of the present invention on the housing;

[0053] Figure 6 Side schematic view of the winding brush assembly of the present invention;

[0054] Figure 7 Is Figure 6 Cross-sectional schematic view along line D-D in;

[0055] Figure 8 Is Figure 7 Cross-sectional schematic view along line E-E in.

[0056] Figure 9 Is Figure 8 Enlarged view of area F in.

[0057] Figure 10 Explosion schematic view of the position of the lower fixing seat of the present invention;

[0058] Figure 11 Explosion schematic view of the position of the upper fixing seat of the present invention;

[0059] Figure 12 Cross-sectional view of the present invention;

[0060] Figure 13 Is Figure 12 Partial enlarged schematic view at B of;

[0061] Figure 14 Is Figure 12 Partial enlarged schematic view at C of;

[0062] Figure 15Schematic perspective view of the locking device of the present invention;

[0063] Figure 16 Top view of the locking device of the present invention. Detailed implementation manners

[0064] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0065] Referring to Figures 1 to 3 , Figure 12 , Figure 13 , a retractable gate structure includes an upper fixed seat 10 and a lower fixed seat 20, a rotating cylinder 30 disposed between the upper fixed seat 10 and the lower fixed seat 20 and rotatable about its own axis, a partition cloth 40 wound around the rotating cylinder 30, and a torsion spring 50 disposed inside the rotating cylinder 30. The torsion spring 50 is used to urge the rotating cylinder 30 to rotate about its own axis in one direction, so as to enable the rotating cylinder 30 to wind up the partition cloth 40;

[0066] Furthermore, referring to Figures 4 to 9 , a housing 60 is provided on the outer side of the rotating cylinder 30. The upper fixed seat 10 and the lower fixed seat 20 are respectively installed at both ends of the housing 60. The housing has an opening, and a winding brush assembly 70 is installed at the opening;

[0067] After the partition cloth 40 is wound up on the outer side of the rotating cylinder 30, it is located in the inner cavity of the housing 60, and one end of the partition cloth 40 extends out from the opening on the housing 60 and passes through the winding brush assembly 70;

[0068] When the partition cloth 40 extends out from or is wound into the housing 60, the winding brush assembly 70 can clean both side surfaces of the partition cloth 40 to eliminate dust and static electricity on the surface of the partition cloth.

[0069] Furthermore, the winding brush assembly 70 includes:

[0070] A brush housing 701, which is installed at the opening of the housing 60. The brush housing 701 is provided with a first outlet 702 and a second outlet 703;

[0071] A first brush 704, which is installed on both sides of the inner wall of the first outlet 702. When the partition cloth 40 passes through the first outlet 702, the ends of the first brush 704 skim both side surfaces of the partition cloth 40 to eliminate dust on both side surfaces of the partition cloth 40;

[0072] A second brush 705, which is installed on both sides of the inner wall of the second outlet 703. When the separator cloth passes through the second outlet 703, the ends of the second brush 705 skim over both side surfaces of the separator cloth 40 to eliminate static electricity on both side surfaces of the separator cloth 40;

[0073] An adjustment component, which is arranged on the brush housing 701 and is adapted to adjust the distance between two second brushes 705 on the inner wall of the second outlet 703;

[0074] A dust suction component, which is installed on the lower fixing seat 20 and is communicated with the inner cavity 706 of the brush housing 701.

[0075] In this embodiment, the first brush 704 is an anti-static nylon brush, and the second brush 705 includes a metal back plate 705a and a carbon fiber brush 705b installed on the metal back plate 705a. The metal back plate 705a is grounded through a metal piece.

[0076] Furthermore, the adjustment component includes:

[0077] An adjustment bolt 707, which passes through a threaded hole 708 on the brush housing 701 and faces the back of the second brush 705;

[0078] A guide rail 709, which is installed at both ends of the inner wall of the second outlet 703;

[0079] A slider 710, which is fixed to the end of the second brush 705 and is slidably matched with a guide rail groove 711 on the guide rail 709;

[0080] A spring 712, one end of which is fixedly connected to the inner cavity wall of the brush housing 701, and the other end is connected to the slider 710;

[0081] When the adjustment bolts 707 on both sides of the brush housing 701 rotate forward, their ends can abut against the back of the second brush 705, so that the two second brushes 705 in the second outlet 703 approach each other and stretch the spring 712. The gap between the two approaching second brushes 705 decreases, adapting to separator cloths 40 of different thicknesses or materials, ensuring close contact between the brushes and the cloth surface, and improving the cleaning and static electricity elimination effects.

[0082] When the adjustment bolts 707 on both sides of the brush housing 701 rotate backward, their ends are separated from the back of the second brush 705. In the case of the disappearance of the thrust force, the stretched spring 712 tends to reset and drives the two second brushes 705 to move away from each other. The gap between the two second brushes 705 becomes larger, adapting to separator cloths 40 of different thicknesses or materials, ensuring close contact between the brushes and the cloth surface, and improving the cleaning and static electricity elimination effects.

[0083] Further, the dust suction assembly includes a suction pump 713 disposed within the lower fixing base 20, a suction pipe 714 connected to the suction pump 713, and the end of the suction pipe 714 communicates with the inner cavity 706 of the brush housing 701.

[0084] When the partition cloth 40 extends out of or is wound into the housing 60, it will pass through the first outlet 702 and the second outlet 703 of the winding brush assembly 70. During the process of unwinding or winding the partition cloth 40, the winding brush assembly 70 can clean the two side surfaces of the partition cloth 40 to remove dust and static electricity on the surface of the partition cloth 40. By providing a winding brush assembly (including a first brush 704 and a second brush 705), during the process of winding or unfolding the partition cloth 40, the brushes automatically clean the two side surfaces thereof, remove accumulated dust and neutralize static electricity, significantly reducing dust adhesion; the first brush 704 (anti-static nylon brush) is used to physically remove dust, and the second brush 705 (carbon fiber brush combined with a metal back plate) conducts static electricity to the ground through grounding, and the dual effects improve the cleaning effect;

[0085] The metal back plate 705a of the second brush 705 is grounded to quickly release the static electricity on the surface of the partition cloth 40, avoiding static electricity from adsorbing dust, especially suitable for easily charged materials such as rubber-coated partition cloth. The conductive property of the carbon fiber brush further enhances the static electricity dissipation efficiency, reducing dust adsorption at the source;

[0086] The adjusting assembly can flexibly adjust the spacing of the second brush 705 through the cooperation of a spring 712 and an adjusting bolt 707 to adapt to partition cloths 40 of different thicknesses or materials, ensuring that the brushes are in close contact with the cloth surface and improving the cleaning and static electricity elimination effects;

[0087] The dust suction assembly (suction pump 713 and suction pipe 714) sucks in and centrally collects the dust shed by the brush cleaning, avoiding secondary dispersion of dust, keeping the environment clean, and reducing the frequency of manual cleaning;

[0088] Moreover, the suction pump 713 is installed on the lower fixing base 20, which can increase the weight of the lower fixing base 20. When the entire gate structure is placed on the ground, the lower fixing base 20 supports on the ground. Due to the weight of the suction pump 713, it can ensure that the lower fixing base 20 stably supports on the ground and is not easily toppled.

[0089] On the basis of retaining the flexible partitioning function of the traditional retractable gate, through the automated cleaning and static electricity elimination design, the practicality and durability of the product are greatly improved, especially suitable for scenarios that require long-term display or high-dust environments.

[0090] Further, referring to Figures 10 to 16, in some embodiments, the retractable door barrier structure further includes: an adjusting device, the adjusting device includes an adjusting rod 17 and an adjusting mechanism, one end of a torsion spring 50 is connected to a rotating cylinder 30. In this embodiment, a lower mounting seat 18 is provided at the bottom end of the rotating cylinder 30, and the bottom end of the rotating cylinder 30 is detachably connected to the lower mounting seat 18. The lower mounting seat 18 is disposed within a limiting ring 19 protruding from a lower fixing seat 20, that is, the lower mounting seat 18 can rotate relative to the lower fixing seat 20 about its own axis. One end of the torsion spring 50 is connected to the lower mounting seat 18, thereby realizing the connection between one end of the torsion spring 50 and the rotating cylinder 30. The other end of the torsion spring 50 is connected to the adjusting rod 17 of the adjusting device. The adjusting mechanism is a one-way rotating mechanism, and the adjusting mechanism is configured to enable the adjusting rod 17 to rotate unidirectionally about its own axis. The adjusting rod 17 is used to drive the torsion spring 50 to twist through its own unidirectional rotation, complete the compression of the torsion spring 50, and further increase the torsional deformation amount of the torsion spring 50. In this embodiment, the adjusting structure uses a ratchet mechanism as the one-way rotating mechanism. In other embodiments, the user can make other choices according to actual needs. For example, a one-way bearing, etc.

[0091] The following further describes the adjusting mechanism. In this embodiment, the adjusting mechanism includes:

[0092] An adjusting ratchet 131, connected to the adjusting rod 17; an adjusting pawl 132 that matches the adjusting ratchet 131. The lower fixing seat 20 is provided with an installation cavity, and both the adjusting ratchet 131 and the adjusting pawl 132 are disposed within the installation cavity. The adjusting ratchet 131 is arranged to be rotatable about its own axis. Specifically, a connecting shaft 125 is provided on the adjusting ratchet 131, and the connecting shaft 125 is inserted into a through hole of the lower fixing seat 20, thereby realizing that the adjusting ratchet 131 can rotate about its own axis. A rotating rod 119 is provided on the lower fixing seat 20, and the adjusting pawl 132 is sleeved on the rotating rod 119 through a through hole provided on itself;

[0093] One side of the adjusting pawl 132 abuts against a first abutting spring 135, and the first abutting spring 135 can push the adjusting pawl 132 to maintain the tendency of being inserted into the tooth groove of the adjusting ratchet wheel 131. In this adjusting mechanism, it can be recognized that due to the existence of the adjusting pawl 132, the adjusting ratchet wheel 131 can only rotate in one direction around its own axis, that is, it cannot rotate counterclockwise and then clockwise. In this embodiment, when the adjusting ratchet wheel 131 is twisted to rotate counterclockwise, the adjusting rod 17 is driven to rotate counterclockwise, and the torsion spring 50 is compressed by the one-way rotation of the adjusting rod 17, increasing the torsional deformation of the torsion spring 50 and increasing the torsional elastic force of the torsion spring 50. In order to facilitate manual twisting of the adjusting ratchet wheel 131 with the help of tools, an adjusting groove 137 is provided on the outer side surface of the adjusting ratchet wheel 131. In this embodiment, the adjusting groove 137 is in a "cross" shape, and a common cross screwdriver tool can be used. In other embodiments, users can make other choices according to actual needs. For example, it can be in a "one" shape, etc.

[0094] If the user needs to reduce the torsional deformation of the torsion spring 50 and reduce the torsional elastic force of the torsion spring 50, in the embodiment, a unlocking portion 134 protrudes from the side of the adjusting pawl 132. After the unlocking portion 134 is pushed by hand, the adjusting pawl 132 is driven to disengage from the tooth groove in the adjusting ratchet wheel 131. When the adjusting pawl 132 does not restrict the adjusting ratchet wheel 131, the adjusting ratchet wheel 131 does not apply force to the torsion spring 50 through the adjusting rod 17. After the external force is removed from the torsion spring 50, it returns to its original state, and the torsional deformation of the torsion spring 50 gradually decreases, while the torsional elastic force of the torsion spring 50 gradually decreases. When the hand releases the unlocking portion 134 and the unlocking portion 134 is in a free state, the first abutting spring 135 can push the adjusting pawl 132 to insert into a tooth groove in the adjusting ratchet wheel 131 again, preventing the torsion spring 50 from continuing to reduce its torsional deformation by itself. Through the above structure, action process and description of the manual operation method, we can know that this adjusting structure realizes the increase of the torsional deformation of the torsion spring 50 by virtue of the basic characteristic of the one-way rotation of the ratchet mechanism, and realizes the reduction of the torsional deformation of the torsion spring 50 by virtue of the characteristic that the torsion spring 50 restores itself after the external force is removed, thereby meeting the user's requirement of actively adjusting the torsional deformation of the torsion spring 50.

[0095] In this embodiment, a cover for sealing the installation cavity is provided on the lower end surface of the lower fixing seat 20, and the cover is provided with a window hole 136 through which the unlocking portion 134 can be seen, and the unlocking portion 134 in the installation cavity can be operated through the window hole 136.

[0096] When the user pulls the partition cloth 40 out of the drum 30 for a certain length, the position of the partition cloth 40 needs to be locked to prevent the partition cloth 40 from being further pulled out of the drum 30. This can be done with the help of a locking device. The structure of the locking device is further described below. In this embodiment, the locking device is arranged in the upper fixing seat 10.

[0097] Further, the locking device includes: a locking ratchet 122, the locking ratchet 122 is connected to the upper end of the rotating drum 30, in this embodiment, an upper mounting seat 126 is provided on the locking ratchet 122, the upper mounting seat 126 passes through the through hole provided on the upper fixing seat 10, and the upper mounting seat 126 can rotate around the axis relative to the upper fixing seat 10, and the rotating drum 30 can be configured to rotate around the axis by means of the upper mounting seat 126 and the lower mounting seat 18 provided at the bottom end of the rotating drum 30;

[0098] A locking pawl 123 matching the locking ratchet 122, a rotating shaft 118 is provided on the upper fixed seat 10, and the locking pawl 123 is sleeved on the rotating shaft 118 through a through hole provided therein;

[0099] One side of the locking pawl 123 abuts against the second abutting spring 112 , and the second abutting spring 112 pushes the locking pawl 123 to maintain a tendency of being inserted into the tooth groove of the locking ratchet 122 .

[0100] It can be recognized that in this locking device, due to the limiting effect of the locking pawl 123, the locking ratchet 122 can only rotate in one direction around the axis, that is, it cannot rotate counterclockwise and then clockwise. In this embodiment, when the locking pawl 123 is not inserted into a tooth groove in the locking ratchet 122, the separator 40 can be pulled out from the drum 30. At this time, the drum 30 rotates clockwise, and the locking ratchet 122 also rotates clockwise. The locking pawl 123 does not limit the rotation of the locking ratchet 122. When the separator 40 needs to be locked to prevent it from being further pulled out, With the help of the second abutment spring 112, the second abutment spring 112 can push the locking pawl 123 to insert into a tooth groove in the locking ratchet 122. The locking pawl 123 limits the locking ratchet 122, so that the locking ratchet 122 cannot continue to rotate in the clockwise direction, that is, the separator cloth 40 cannot be further pulled out. Please note that at this time, the locking pawl 123 does not limit the locking ratchet 122 from rotating counterclockwise. The torsional elastic force of the torsion spring 50 always applies a winding force to the separator cloth 40. Although the separator cloth 40 is restricted from being pulled out further, it can be kept in a taut state.

[0101] If the user needs to release the lock on the partition cloth 40, the unlocking assembly can be used. The structure of the unlocking assembly is further described below. In this embodiment, the unlocking assembly includes a push-off turntable 113 and a push-off protrusion 114 arranged on the side of the push-off turntable 113. The push-off turntable 113 is configured to rotate around its own axis.

[0102] The locking pawl 123 is convexly provided with a pushed-away portion 115. After the pushing convex portion 114 is driven, it rotates around the axis of the pushing turntable 113. Then, the pushing convex portion 114 pushes the pushed-away portion 115, causing the pushed-away portion 115 to rotate around the axis of the rotating shaft 118, so as to drive the locking pawl 123 to disengage from the tooth groove in the locking ratchet 122, completing the release of the locking of the partition cloth 40.

[0103] In this embodiment, the upper fixing seat 10 is provided with a protective shell 116. The protective shell 116 is provided with a placement cavity 124 that can accommodate a locking knob 121. To facilitate the user to operate the pushing convex portion 114, the locking knob 121 is connected to the pushing turntable 113.

[0104] In this embodiment, the pulling end of the partition cloth 40 is provided with a protective shell 141. The protective shell 141 is provided with a corner wrapping portion 142 for wrapping the corners of the pulling end of the partition cloth 40. By providing the protective shell 141 to protect the pulling end of the partition cloth 40, the service life of the partition cloth 40 can be effectively improved. Since the corners of the partition cloth 40 are relatively prone to damage during use, the protective shell 141 is provided with the corner wrapping portion 142 to wrap and protect the corners of the partition cloth 40, preventing the corners of the partition cloth 40 from being damaged after multiple uses, and further improving the service life of the cloth body.

[0105] In addition, a support rod 150 parallel to the rotating cylinder 30 is provided between the upper fixing seat 10 and the lower fixing seat 20. An adjustable fixing seat 151 is provided at the support rod 150. The adjustable fixing seat 151 can move back and forth along the length direction of the support rod 150. When installing the telescopic railing, since there are only two upper and lower fixing points, the stability in the middle will be insufficient and it is easy to be pushed and damaged. Therefore, by providing the adjustable fixing seat 151, a fixed support can be formed in the middle of the telescopic railing, thereby improving the stability of the installation.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A retractable door barrier structure, comprising: An upper fixed seat and a lower fixed seat; A rotating cylinder, which is arranged between the upper fixed seat and the lower fixed seat, and the rotating cylinder is configured to be rotatable about its own axis; A partition cloth, which is wound around the rotating cylinder, and a torsion spring is arranged inside the rotating cylinder, and the torsion spring is used to urge the rotating cylinder to rotate about its own axis in one direction, so as to realize that the rotating cylinder can wind up the partition cloth; A housing is arranged on the outer side of the rotating cylinder, and the upper fixed seat and the lower fixed seat are respectively installed at both ends of the housing. It is characterized in that an opening is provided on the housing, and a winding brush assembly is installed at the opening; After the partition cloth is wound on the outer side of the rotating cylinder, it is located in the inner cavity of the housing, and one end of the partition cloth extends out from the opening on the housing and passes through the winding brush assembly; When the partition cloth extends out from the housing or is wound into the housing, the winding brush assembly can clean both surfaces of the partition cloth to remove dust and static electricity on the surface of the partition cloth.

2. The retractable door threshold structure according to claim 1, characterized in that, The winding brush assembly includes: A brush housing, which is installed at the opening of the housing, and the brush housing is provided with a first outlet and a second outlet; A first brush, which is installed on both sides of the inner wall of the first outlet. When the partition cloth passes through the first outlet, the ends of the first brush skim both surfaces of the partition cloth to remove dust on both surfaces of the partition cloth; A second brush, which is installed on both sides of the inner wall of the second outlet. When the partition cloth passes through the second outlet, the ends of the second brush skim both surfaces of the partition cloth to remove static electricity on both surfaces of the partition cloth; An adjusting assembly, which is arranged on the brush housing and is suitable for adjusting the distance between two second brushes on the inner wall of the second outlet; A dust suction assembly, which is installed on the lower fixed seat and is communicated with the inner cavity of the brush housing.

3. The retractable door threshold structure according to claim 2, characterized in that, The first brush is an anti-static nylon brush, and the second brush includes a metal back plate, a carbon fiber brush installed on the metal back plate, and the metal back plate is grounded through a metal piece.

4. The retractable door threshold structure according to claim 2, wherein, The adjusting assembly includes: An adjusting bolt, which passes through a threaded hole on the brush housing and faces the back of the second brush; A guide rail, which is installed at both ends of the inner wall of the second outlet; A slider, which is fixed at the end of the second brush and is slidably matched with a guide rail groove on the guide rail; A spring, one end of which is fixedly connected to the inner wall of the inner cavity of the brush housing, and the other end is connected to the slider; When the adjusting bolts on both sides of the brush housing rotate forward, their ends can abut against the back of the second brush, so that the two second brushes in the second outlet approach each other and stretch the spring; When the adjusting bolts on both sides of the brush housing rotate backward, their ends are separated from the back of the second brush, and the stretched spring tends to reset and drives the two second brushes to move away from each other.

5. The retractable door threshold structure according to claim 2, wherein, The dust suction assembly includes an air suction pump arranged in the lower fixed seat, a suction pipe connected to the air suction pump, and the end of the suction pipe is communicated with the inner cavity of the brush housing.

6. The retractable door threshold structure according to claim 1, characterized in that, It also includes: Adjusting device, the adjusting device includes an adjusting rod, a torsion spring and an adjusting mechanism, one end of the torsion spring is connected to the rotating cylinder, and the other end of the torsion spring is connected to the adjusting rod; Among them, the adjusting mechanism is a one-way rotation mechanism, and the adjusting mechanism is configured to enable the adjusting rod to rotate unidirectionally around its central axis. The adjusting rod is used to drive the torsion spring to twist through its own unidirectional rotation, complete the compression of the torsion spring, and further increase the torsional deformation amount of the torsion spring.

7. The retractable door threshold structure according to claim 6, characterized in that, The adjusting mechanism includes: Adjusting ratchet, which is connected to the adjusting rod; Adjusting pawl, which is matched with the adjusting ratchet. The lower fixed seat is provided with an installation cavity, and the adjusting ratchet and the adjusting pawl are both arranged in the installation cavity. The adjusting ratchet is arranged to be rotatable around its own axis. The lower fixed seat protrudes with a rotating rod, and the adjusting pawl is sleeved on the rotating rod through a through hole provided in itself; First abutting spring, the first abutting spring is used to push the adjusting pawl to keep the tendency of inserting into the tooth groove of the adjusting ratchet.

8. The retractable door threshold structure according to claim 7, wherein, It further includes a locking device, and the locking device is arranged in the upper fixed seat. The locking device includes: Locking ratchet, which is connected to the upper end of the rotating cylinder; Locking pawl, which is matched with the locking ratchet. The upper fixed seat protrudes with a rotating shaft, and the locking pawl is sleeved on the rotating shaft through a through hole provided in itself; Second abutting spring, which is used to push the locking pawl to keep the tendency of inserting into the tooth groove of the locking ratchet.

9. The retractable door threshold structure according to claim 8, characterized in that, The locking device further includes an unlocking component, and the unlocking component includes a pushing-away turntable and a pushing-away convex part arranged on the side of the pushing-away turntable. The pushing-away turntable is configured to be rotatable around its own axis; The locking pawl protrudes with a pushed-away part, and the pushing-away convex part is used to rotate around the axis of the pushing-away turntable after being driven, and then the pushing-away convex part pushes the pushed-away part, so that the pushed-away part rotates around the axis of the rotating shaft, thereby realizing that the pushed-away part drives the locking pawl to disengage from the tooth groove in the locking ratchet.

10. The retractable door threshold structure according to claim 9, characterized in that, The upper fixed seat is provided with a protective shell, and the protective shell is provided with a placement cavity for accommodating a locking knob. The locking knob is connected to the pushing-away turntable.

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