Retractable door
By introducing a telescopic frame into the door row of the telescopic door, including fixed mullions, transition vertical rods and telescopic mullions, the problem of shaking and unstable when the door row moves and telescopic, is solved, and a more stable telescopic process is achieved.
Patent Information
- Application Number
- CN202420974549.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The door row of existing telescopic doors is prone to shaking when moving and telescopic, and the telescopic process is unstable.
A telescopic door including a door row and a door head is designed. The door row consists of multiple main frames, subframes, telescopic frames and cross-linking rods. The telescopic frame includes a fixed mullet, a transition vertical rod and a telescopic mullet. The transition vertical rod is arranged between the fixed frame and the telescopic frame. When the main frame moves, the cross-linking rod folds and shrinks, and the telescopic frame is vertically telescopic relative to the transition frame.
With this design, the door row is less likely to shake when it is telescopic, and the telescopic process is more stable.
Smart Images
Figure CN222848139U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of telescopic doors, in particular to a telescopic door. Background Art
[0002] Telescopic doors are doors that control the size of the door opening by telescoping, thereby intercepting and releasing pedestrians or vehicles. Telescopic doors are widely used in public places such as industrial and mining enterprises, government institutions, schools, hotels or restaurants. Telescopic doors generally include a door head and a door row. The door row is a telescopic structure. The door row is telescopically moved under the drive of the door head, thereby completing the adjustment of the size of the door opening, which is very convenient. However, in the prior art, the door row is prone to shaking when moving and telescoping, and the telescoping process is unstable. Utility Model Content
[0003] The main technical problem solved by the utility model is to provide a telescopic door, which solves the problem that the door row is prone to shaking when moving and telescoping, and the telescoping process is unstable.
[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is to provide a telescopic door, including a door row and a door head, wherein the door row is arranged at the rear side of the door head, and the door head is used to drive the door row to expand and retract;
[0005] The door row includes a plurality of main frames, sub-frames, telescopic frames and cross-links. A walking wheel is arranged at the bottom of the main frame. A sub-frame is arranged between two adjacent main frames. A telescopic frame is arranged between adjacent main frames and sub-frames. The cross-links are movably connected between the main frames, sub-frames and telescopic frames. The cross-links can be folded and contracted with the movement of the main frames.
[0006] The telescopic frame includes a fixed vertical frame, a transition vertical rod and a telescopic vertical frame. The transition vertical rod is inserted between the fixed vertical frame and the telescopic vertical frame. The lower end of the transition vertical rod is fixedly connected to the fixed vertical frame. The upper end of the transition vertical rod is movably arranged in the telescopic vertical frame. The telescopic vertical frame can be vertically extended and retracted relative to the transition vertical rod as the cross connecting rod is folded.
[0007] In some embodiments, the fixed vertical frame includes a fixed vertical rod, a fixed horizontal rod and a first hinged horizontal rod. The two fixed vertical rods are arranged at intervals. The fixed horizontal rod and the first hinged horizontal rod are both arranged between the two fixed vertical rods. The fixed horizontal rod is located at the lower part of the fixed vertical rod, and the first hinged horizontal rod is located at the upper part of the fixed vertical rod. The first hinged horizontal rod is used to hinge the cross-linking rod.
[0008] In some embodiments, the telescopic vertical frame includes a telescopic vertical rod, a telescopic cross rod and a second hinged cross rod. The two telescopic vertical rods are arranged at intervals, and the telescopic cross rod and the second hinged cross rod are both arranged between the two telescopic vertical rods. The telescopic cross rod is located at the upper part of the telescopic vertical rod, and the second hinged cross rod is located in the middle part of the telescopic vertical rod. The second hinged cross rod is used to hinge the cross-link.
[0009] In some embodiments, the cross-link includes a first oblique link and a second oblique link arranged crosswise, wherein the first end of the first oblique link is hinged at the lower part of the main frame, and the second end of the first oblique link is hinged at the upper part of the adjacent main frame; the first end of the second oblique link is hinged at the upper part of the main frame, and the second end of the second oblique link is hinged at the lower part of the adjacent main frame; the first oblique link and the second oblique link both pass through the middle part of the sub-frame and the two telescopic frames located between the two main frames, and are hinged to the sub-frame and the two telescopic frames.
[0010] In some embodiments, the upper part of the fixed vertical rod and the lower part of the telescopic vertical rod are both connected to a sleeve, the inner surfaces of the two sleeves are both fitted with the outer surface of the transition vertical rod, the outer surfaces of the two sleeves are respectively fitted with the inner surfaces of the fixed vertical rod and the telescopic vertical rod, and the two sleeves are respectively clamped between the fixed vertical rod and the transition vertical rod, and between the telescopic vertical rod and the transition vertical rod, and the sleeve is used to improve the stability of the connection between the transition vertical rod and the fixed vertical rod and the telescopic vertical rod.
[0011] In some embodiments, a snap-in protrusion is provided on the outer surface of the sleeve, and a snap-in groove is provided on both the telescopic vertical rod and the fixed vertical rod, and the snap-in protrusion is snapped in the snap-in groove.
[0012] In some embodiments, a sealing member is disposed at the end of the sleeve, and two sealing members respectively abut against the lower end of the telescopic vertical rod and the upper end of the fixed vertical rod.
[0013] In some embodiments, recessed portions are provided at the four corners of the telescopic vertical rod, and a resisting protrusion is provided on the outer surface of the sleeve, and the resisting protrusion resists against the inner surface of the recessed portion.
[0014] In some embodiments, the recessed portion includes a first bent sub-portion, an arc sub-portion, and a second bent sub-portion connected in sequence, the top angle of the sleeve is arc-shaped, and the abutting protrusion includes a plurality of vertically arranged first sub-protrusions and second sub-protrusions, the first sub-protrusion abuts the first bent sub-portion, the arc sub-portion fits the top angle, and the second sub-protrusion abuts the second bent sub-portion.
[0015] In some embodiments, at least one movable hinged rod is provided in the middle of the main frame and the sub-frame, and the movable hinged rod is used to hinge the cross-linking rod. Limiting grooves corresponding to each movable hinged rod are provided on both sides of the main frame and the sub-frame. Both ends of the movable hinged rod are stuck in the limiting grooves and can move vertically along the limiting grooves.
[0016] The beneficial effect of the utility model is as follows: in the utility model, a telescopic frame is arranged between adjacent main frames and sub-frames, the telescopic frame includes a fixed vertical frame, a transition vertical rod and a telescopic vertical frame, the transition vertical rod is passed between the fixed vertical frame and the telescopic vertical frame, the lower end of the transition vertical rod is fixedly connected to the fixed vertical frame, and the upper end of the transition vertical rod is movably arranged in the telescopic vertical frame; when the main frame moves and telescopes, the cross-linking rod is also folded and contracted accordingly, and at the same time, as the cross-linking rod is folded and contracted, the telescopic vertical frame is also vertically contracted relative to the transition vertical rod, so that the door row is not easy to shake when it is telescoped, and the telescopic process is more stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;
[0018] Figure 2 This is a schematic diagram of the structure of a portion of a door row in an embodiment of the utility model;
[0019] Figure 3 This is a schematic structural diagram of a telescopic frame according to an embodiment of the utility model;
[0020] Figure 4 This is a schematic structural diagram of a sleeve in one embodiment of the utility model;
[0021] Figure 5 This is a schematic structural diagram of a telescopic vertical rod according to an embodiment of the utility model;
[0022] Figure 6 It is a structural schematic diagram of a sub-frame of an embodiment of the utility model. DETAILED DESCRIPTION
[0023] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0024] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.
[0025] For the description of the utility model, non-limiting Figure 1The marks "front", "rear", "up", "down", "left" and "right" shown in the figure are used to facilitate the understanding of the embodiment and are not intended to limit the present invention. Among them, the front-to-back direction represents the longitudinal direction, the left-to-right direction represents the transverse direction, and the up-down direction represents the vertical direction.
[0026] Figure 1-Figure 6 The embodiment of the telescopic door of the utility model is shown, comprising a door row 1 and a door head 2, wherein the door row 1 is arranged at the rear side of the door head 2, and the door head 2 is used to drive the door row 1 to expand and retract;
[0027] The door row 1 includes a plurality of main frames 11, sub-frames 12, telescopic frames 13 and cross-links 14. A walking wheel 15 is provided at the bottom of the main frame 11. A sub-frame 12 is provided between two adjacent main frames 11. A telescopic frame 13 is provided between adjacent main frames 11 and sub-frames 12. The cross-links 14 are movably connected between the main frames 11, the sub-frames 12 and the telescopic frames 13. The cross-links 14 can be folded and retracted with the movement of the main frames 11.
[0028] The telescopic frame 13 is rectangular and includes a fixed vertical frame 131, a transition vertical rod 132 and a telescopic vertical frame 133. The transition vertical rod 132 is inserted between the fixed vertical frame 131 and the telescopic vertical frame 133. The lower end of the transition vertical rod 132 is fixedly connected to the fixed vertical frame 131, and the upper end of the transition vertical rod 132 is movably arranged in the telescopic vertical frame 133. The telescopic vertical frame 133 can be vertically extended and retracted relative to the transition vertical rod 132 as the cross-link 14 is folded.
[0029] In the present invention, a telescopic frame 13 is arranged between the adjacent main frame 11 and the auxiliary frame 12, and the telescopic frame 13 includes a fixed vertical frame 131, a transition vertical rod 132 and a telescopic vertical frame 133. The transition vertical rod 132 is arranged between the fixed vertical frame 131 and the telescopic vertical frame 133, the lower end of the transition vertical rod 132 is fixedly connected to the fixed vertical frame 131, and the upper end of the transition vertical rod 132 is movably arranged in the telescopic vertical frame 133. When the main frame 11 moves and retracts, the cross link 14 is also folded and contracted, and at the same time, as the cross link 14 is folded and contracted, the telescopic vertical frame 133 is also vertically retracted relative to the transition vertical rod 132, so that the door row 1 is not easy to shake when retracting, and the retracting process is more stable.
[0030] In some embodiments, Figure 3As shown, the fixed vertical frame 131 includes a fixed vertical bar 1311, a fixed horizontal bar 1312 and a first hinged horizontal bar 1313. The two fixed vertical bars 1311 are arranged at intervals, and the fixed horizontal bar 1312 and the first hinged horizontal bar 1313 are both arranged between the two fixed vertical bars 1311. The fixed horizontal bar 1312 is located at the lower part of the fixed vertical bar 1311, and the first hinged horizontal bar 1313 is located at the upper part of the fixed vertical bar 1311. The first hinged horizontal bar 1313 is used to hinge the cross link 14. By connecting the fixed horizontal bar 1312 to the lower part of the two fixed vertical bars 1311, the stability of the overall structure of the fixed vertical frame 131 is increased; the first hinged horizontal bar 1313 is hinged to the cross link 14, which improves the stability of the cross link 14 during the contraction process.
[0031] In some embodiments, Figure 3 As shown, the telescopic vertical frame 133 includes a telescopic vertical rod 1331, a telescopic horizontal rod 1332 and a second hinged horizontal rod 1333. The two telescopic vertical rods 1331 are arranged at intervals, and the telescopic horizontal rod 1332 and the second hinged horizontal rod 1333 are both arranged between the two telescopic vertical rods 1331. The telescopic horizontal rod 1332 is located at the upper part of the telescopic vertical rod 1331, and the second hinged horizontal rod 1333 is located at the middle part of the telescopic vertical rod 1331. By connecting the telescopic horizontal rod 1332 to the upper part of the two telescopic vertical rods 1331, the stability of the overall structure of the telescopic vertical frame 133 is enhanced; the second hinged horizontal rod 1333 is hinged to the cross link 14, and when the cross link 14 is folded and contracted, the relative force between the cross link 14 and the second hinged horizontal rod 1333 is converted into a driving force for the vertical movement of the telescopic vertical frame 133, so that the telescopic vertical frame 133 moves vertically relative to the transition vertical rod 132, and the stability of the cross link 14 during the folding and contraction process is improved.
[0032] It should be noted that the structures of the main frame 11 and the sub-frame 12 are basically the same, and the only difference is that the bottom of the main frame 11 is provided with running wheels 15, while the bottom of the sub-frame 12 is not provided with running wheels 15.
[0033] In some embodiments, Figure 6 As shown, Figure 6 The structure diagram of the subframe 12 is shown below. Figure 6The main frame 11 and the sub-frame 12 are introduced. At least one movable hinged rod 121 is disposed in the middle of the main frame 11 and the sub-frame 12. In the present embodiment, two movable hinged rods 121 are disposed in the middle of the main frame 11 and the sub-frame 12. The movable hinged rod 121 is used to hinge the cross-link 14. Limiting grooves 122 corresponding to each movable hinged rod 121 are disposed on both sides of the main frame 11 and the sub-frame 12. Both ends of the movable hinged rod 121 are stuck in the limiting grooves 122 and can move vertically along the limiting grooves 122. When the cross-link 14 is folded and contracted, the movable hinged rod 121 moves vertically along the limiting grooves 122 to cooperate in completing the entire contraction process, and the telescopic process is more stable. In some embodiments, such as Figure 2 As shown, the cross link 14 includes a first oblique link 141 and a second oblique link 142 which are arranged crosswise, wherein the first end of the first oblique link 141 is hinged to the lower part of the main frame 11, and the second end of the first oblique link 141 is hinged to the upper part of the adjacent main frame 11; the first end of the second oblique link 142 is hinged to the upper part of the main frame 11, and the second end of the second oblique link 142 is hinged to the lower part of the adjacent main frame 11; the first oblique link 141 and the second oblique link 142 both pass through the middle of the sub-frame 12 and the two telescopic frames 13 located between the two main frames 11, and are hinged to the sub-frame 12 and the two telescopic frames 13. By hingedly connecting the first oblique link 141 and the second oblique link 142 to the two adjacent main frames 11, and the sub-frame 12 and the two telescopic frames 13 located between the two main frames 11, respectively, the entire telescopic process is less likely to shake and is more stable.
[0034] In some embodiments, Figure 3 and Figure 4 As shown, the upper part of the fixed vertical rod 1311 and the lower part of the telescopic vertical rod 1331 are both connected with a sleeve 3, the sleeve 3 is made of metal, the inner surfaces of the two sleeves 3 are both in contact with the outer surface of the transition vertical rod 132, the outer surfaces of the two sleeves 3 are respectively in contact with the inner surfaces of the fixed vertical rod 1311 and the telescopic vertical rod 1331, the two sleeves 3 are respectively clamped between the fixed vertical rod 1311 and the transition vertical rod 132, and between the telescopic vertical rod 1331 and the transition vertical rod 132, the sleeve 3 is used to improve the stability of the connection between the transition vertical rod 132 and the fixed vertical rod 1311 and the telescopic vertical rod 1331. By arranging the sleeve 3 between the fixed vertical rod 1311 and the transition vertical rod 132, the reliability of the fixed connection between the fixed vertical rod 1311 and the transition vertical rod 132 is improved; by arranging the sleeve 3 between the telescopic vertical rod 1331 and the transition vertical rod 132, the stability of the vertical telescopic movement of the telescopic vertical rod 1331 relative to the transition vertical rod 132 is enhanced, and the friction during the telescopic movement can be reduced.
[0035] In some embodiments, Figure 4 and Figure 5As shown, the outer surface of the sleeve 3 is provided with a clamping protrusion 31, and the telescopic vertical rod 1331 and the fixed vertical rod 1311 are both provided with a clamping groove 1334, and the clamping protrusion 31 is clamped in the clamping groove 1334. The clamping of the sleeve 3 with the telescopic vertical rod 1331 and the fixed vertical rod 1311 facilitates the installation and removal of the sleeve 3.
[0036] In some embodiments, in combination Figure 3 and Figure 4 As shown, a seal 4 is provided at the end of the sleeve 3, and the seal 4 can be a sealing ring. The two seals 4 respectively abut against the lower end of the telescopic vertical rod 1331 and the upper end of the fixed vertical rod 1311 to prevent rainwater or external pollutants from entering between the telescopic vertical rod 1331 and the transition vertical rod 132 and between the fixed vertical rod 1311 and the telescopic vertical rod 1331. It is safer and more reliable, and the telescopic vertical rod 1331 and the fixed vertical rod 1311 are not easily corroded or damaged.
[0037] It should be noted that, in this embodiment, the fixed vertical rod 1311 and the telescopic vertical rod 1331 have the same shape and only differ in length, so the structures of the two sleeves 3 are also the same. The following description will only take the telescopic vertical rod 1331 as an example.
[0038] In some embodiments, Figure 4 and Figure 5 As shown, the four corners of the telescopic vertical rod 1331 are provided with recessed parts 134, and the outer surface of the sleeve 3 is provided with abutting protrusions 32, which abut against the inner surface of the recessed parts 134. The abutting protrusions 32 abut against the recessed parts 134, so that the connection between the sleeve 3 and the telescopic vertical rod 1331 is tighter.
[0039] In some embodiments, Figure 4 and Figure 5 As shown, the recessed portion 134 includes a first bent sub-portion 1341, an arc sub-portion 1342 and a second bent sub-portion 1343 connected in sequence, the top angle of the sleeve 3 is arc-shaped, and the abutting protrusion 32 includes a plurality of vertically arranged first sub-protrusions 321 and second sub-protrusions 322. When the telescopic vertical rod 1331 is clamped with the sleeve 3, the first sub-protrusion 321 abuts against the first bent sub-portion 1341, the arc sub-portion 1342 fits with the top angle, and the second sub-protrusion 322 abuts against the second bent sub-portion 1343, thereby improving the reliability of the connection between the telescopic vertical rod 1331 and the sleeve 3.
[0040] It can be seen that the utility model discloses a telescopic door, which is achieved by arranging a telescopic frame between adjacent main frames and sub-frames, the telescopic frame including a fixed vertical frame, a transition vertical rod and a telescopic vertical frame, the transition vertical rod is passed between the fixed vertical frame and the telescopic vertical frame, the lower end of the transition vertical rod is fixedly connected to the fixed vertical frame, and the upper end of the transition vertical rod is movably arranged in the telescopic vertical frame; when the main frame moves and telescopes, the cross-linking rods are also folded and contracted accordingly, and at the same time, as the cross-linking rods are folded and contracted, the telescopic vertical frames are also vertically contracted relative to the transition vertical rods, thereby making it less likely for the door row to shake when telescoping, and the telescoping process is more stable.
[0041] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A telescopic door, characterized in that: It comprises a door row and a door head, wherein the door row is arranged at the rear side of the door head, and the door head is used to drive the door row to expand and retract; The door row includes a plurality of main frames, sub-frames, telescopic frames and cross-links, the bottom of the main frame is provided with walking wheels, a sub-frame is provided between two adjacent main frames, a telescopic frame is provided between adjacent main frames and sub-frames, the cross-links are movably connected between the main frames, sub-frames and telescopic frames, and the cross-links can be folded and contracted with the movement of the main frame; The telescopic frame includes a fixed vertical frame, a transition vertical rod and a telescopic vertical frame. The transition vertical rod is inserted between the fixed vertical frame and the telescopic vertical frame. The lower end of the transition vertical rod is fixedly connected to the fixed vertical frame. The upper end of the transition vertical rod is movably arranged in the telescopic vertical frame. The telescopic vertical frame can be vertically extended and retracted relative to the transition vertical rod as the cross connecting rod is folded.
2. The telescopic door according to claim 1, characterized in that: The fixed vertical frame includes a fixed vertical rod, a fixed cross rod and a first hinged cross rod. The two fixed vertical rods are arranged at intervals. The fixed cross rod and the first hinged cross rod are both arranged between the two fixed vertical rods. The fixed cross rod is located at the lower part of the fixed vertical rod, and the first hinged cross rod is located at the upper part of the fixed vertical rod. The first hinged cross rod is used to hinge the cross-link.
3. The telescopic door according to claim 2, characterized in that: The telescopic vertical frame includes a telescopic vertical rod, a telescopic cross rod and a second hinged cross rod. The two telescopic vertical rods are arranged at intervals. The telescopic cross rod and the second hinged cross rod are both arranged between the two telescopic vertical rods. The telescopic cross rod is located at the upper part of the telescopic vertical rod, and the second hinged cross rod is located in the middle part of the telescopic vertical rod. The second hinged cross rod is used to hinge the cross connecting rod.
4. The telescopic door according to claim 1, characterized in that: The cross-link includes a first oblique link and a second oblique link arranged crosswise, wherein the first end of the first oblique link is hinged at the lower part of the main frame, and the second end of the first oblique link is hinged at the upper part of the adjacent main frame; the first end of the second oblique link is hinged at the upper part of the main frame, and the second end of the second oblique link is hinged at the lower part of the adjacent main frame; the first oblique link and the second oblique link both pass through the middle part of the sub-frame and the two telescopic frames located between the two main frames, and are hinged to the sub-frame and the two telescopic frames.
5. The telescopic door according to claim 3, characterized in that: The upper part of the fixed vertical rod and the lower part of the telescopic vertical rod are both connected with sleeves, the inner surfaces of the two sleeves are both in contact with the outer surface of the transition vertical rod, the outer surfaces of the two sleeves are respectively in contact with the inner surfaces of the fixed vertical rod and the telescopic vertical rod, the two sleeves are respectively clamped between the fixed vertical rod and the transition vertical rod, and between the telescopic vertical rod and the transition vertical rod, and the sleeves are used to improve the stability of the connection between the transition vertical rod and the fixed vertical rod and the telescopic vertical rod.
6. The telescopic door according to claim 5, characterized in that: The outer surface of the sleeve is provided with a clamping protrusion, and the telescopic vertical rod and the fixed vertical rod are both provided with a clamping groove, and the clamping protrusion is clamped in the clamping groove.
7. The telescopic door according to claim 6, characterized in that: The end of the sleeve is provided with a sealing member, and the two sealing members respectively abut against the lower end of the telescopic vertical rod and the upper end of the fixed vertical rod.
8. The telescopic door according to claim 6, characterized in that: The four corners of the telescopic vertical rod are provided with recessed parts, and the outer surface of the sleeve is provided with abutting protrusions, and the abutting protrusions abut against the inner surface of the recessed parts.
9. The telescopic door according to claim 8, characterized in that: The recessed portion includes a first bending sub-portion, an arc sub-portion, and a second bending sub-portion connected in sequence, the top angle of the sleeve is arc-shaped, and the interfering protrusion includes a plurality of vertically arranged first sub-protrusions and second sub-protrusions, the first sub-protrusion interferes with the first bending sub-portion, the arc sub-portion fits with the top angle, and the second sub-protrusion interferes with the second bending sub-portion.
10. The telescopic door according to claim 1, characterized in that: At least one movable hinged rod is arranged in the middle of the main frame and the sub-frame, and the movable hinged rod is used to hinge the cross-linking rod. Limiting grooves corresponding to each movable hinged rod are arranged on both sides of the main frame and the sub-frame. Both ends of the movable hinged rod are stuck in the limiting grooves and can move vertically along the limiting grooves.