CN211722707U - Door opening device - Google Patents
Door opening device Download PDFInfo
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- CN211722707U CN211722707U CN202020023299.3U CN202020023299U CN211722707U CN 211722707 U CN211722707 U CN 211722707U CN 202020023299 U CN202020023299 U CN 202020023299U CN 211722707 U CN211722707 U CN 211722707U
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- curtain
- door opening
- pulley
- opening device
- traction cable
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Abstract
The utility model provides a door opening device, include: the door curtain comprises two curtain lifting rods and two curtain bodies arranged on the upper edge of a door opening, the two curtain bodies are respectively shielded on two opposite sides of the door opening, the lower ends of the two curtain lifting rods are respectively connected to the two curtain bodies, the upper ends of the two curtain lifting rods are pivoted on the upper edge, and the distance between the two curtain lifting rods is narrow at the top and wide at the bottom; the lifting assembly comprises a stay bar, an upper pulley arranged on the upper edge and a traction cable wound on the upper pulley, wherein vertical through chutes are formed at two ends of the stay bar respectively, the two curtain lifting rods are arranged in the through chutes at two ends of the stay bar respectively in a sliding manner, and the first end of the traction cable is connected to the stay bar; and the driving pedal is arranged on the ground in a mode of being overturned, and the second end of the traction cable is connected to one side of the driving pedal. The utility model provides a traditional door opening who installs the door curtain open inconvenient problem.
Description
Technical Field
The utility model relates to a construction technical field, concretely relates to door opening device.
Background
During winter construction, for the indoor heat preservation effect, the door opening department of construction passageway generally installs the door curtain. The traditional method is to adopt a whole door curtain (or two door curtains assembled) to shield the door opening for heat preservation, and is specific: the upper end of the door curtain is fixed on the wall body, the other three edges are not restricted, and a worker can lift the door curtain by hands and then can pass through the door curtain; the construction method brings inconvenience to the passage of workers holding tools or materials, and reduces the expected heat preservation effect due to air leakage caused by poor constraint.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, a door opening device is provided so as to solve the problem that the traditional door opening provided with a door curtain is inconvenient to open.
In order to achieve the above object, there is provided a door opening device including:
the door curtain comprises two curtain lifting rods and two curtain bodies arranged on the upper edge of a door opening, the two curtain bodies are respectively shielded on two opposite sides of the door opening, the lower ends of the two curtain lifting rods are respectively connected to the two curtain bodies, the upper ends of the two curtain lifting rods are pivoted on the upper edge, and the distance between the two curtain lifting rods is narrow at the top and wide at the bottom;
the lifting assembly comprises a stay bar, an upper pulley arranged on the upper edge and a traction cable wound on the upper pulley, wherein vertical through chutes are formed at two ends of the stay bar respectively, the two curtain lifting rods are arranged in the through chutes at two ends of the stay bar respectively in a sliding manner, and the first end of the traction cable is connected to the stay bar; and
the driving pedal is arranged on the ground in a mode of being overturned, and the second end of the traction cable is connected to one side of the driving pedal.
Furthermore, a hanging ring is installed on the upper edge, the hanging ring is arranged along the wall surface direction of the upper edge, a locking ring is connected to the upper end of the curtain lifting rod, and the locking ring is buckled and connected with the hanging ring.
Furthermore, the pulling assembly further comprises a middle pulley and a lower pulley, the middle pulley is installed at the corner of the door opening, the lower pulley is installed at the lower edge of the door opening and located below the driving pedal, and the traction cable is sequentially wound on the middle pulley and the lower pulley.
Furthermore, a delay tension spring for applying tension to one side of the driving pedal, which is far away from the second end of the traction cable, is mounted on the ground.
Furthermore, the ground is vertically provided with a stand column, the stand column is connected with a fixed shaft, the driving pedal is provided with a jack, and the fixed shaft is rotatably inserted into the jack.
Furthermore, an anti-falling lock rod is connected between two opposite side walls of the through chute, the anti-falling lock rod and the through chute enclose an anti-falling space, and the curtain lifting rod penetrates through the anti-falling space.
Further, the upper pulley is located right above the middle of the stay bar.
The beneficial effects of the utility model reside in that, the utility model discloses a door opening device only needs to step on the drive footboard with the upset drive footboard with the foot to the constructor of business turn over door opening, and the drive footboard draws the second end of pulling the cable, and the bracing piece upwards promotes to strut with two lower extremes of lifting the curtain pole, and then makes the lower extreme of two curtain bodies separately expose the door opening and pass through for the constructor. Therefore, to the constructor who has instrument, equipment on hand, only need step on the drive footboard and then can open the door opening business turn over door opening, improved the efficiency of construction, and after constructor got into the door opening, the door curtain drew the first end of pulling the cable under the effect of its dead weight for the drive footboard resets, and the door opening is automatic closed, and then has ensured indoor heat preservation effect.
Drawings
Fig. 1 is a schematic structural view of a door opening device according to an embodiment of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a partially enlarged view of B in fig. 1.
Fig. 4 is a schematic view illustrating a state of the door curtain of the door opening device according to the embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
Fig. 1 is a schematic structural diagram of a door opening device according to an embodiment of the present invention, fig. 2 is a partial enlarged view of a position a in fig. 1, fig. 3 is a partial enlarged view of a position B in fig. 1, and fig. 4 is a schematic state diagram of a door curtain of a door opening device according to an embodiment of the present invention.
Referring to fig. 1 to 4, the utility model provides a door opening device, include: a door curtain 2, a lifting assembly and a drive pedal 4.
A door curtain is arranged on the outer side (namely the outdoor side) of the door opening 1, and the inner side of the door opening is the indoor side. Specifically, the door curtain 2 includes a curtain body 21 and a curtain lifting rod 22. The number of the curtain lifting rod 22 and the curtain body 21 is two respectively. The two curtain bodies are respectively and fixedly arranged on the upper edge of the door opening 1, the other three edges of the curtain bodies are movable sides, and the two curtain bodies are respectively shielded on the two opposite sides of the door opening 1. The lower ends of the two curtain lifting rods 22 are respectively connected with the two curtain bodies 21.
Preferably, the lower end of the curtain lifting rod is connected with the lower end of the curtain body, and the upper end of the curtain body is fixedly arranged on the upper edge of the door opening through a fastening screw.
The upper ends of the two curtain lifting rods 22 are respectively pivoted on the wall surface at the upper edge of the door opening. The distance between the two curtain lifting rods 22 is narrow at the top and wide at the bottom, i.e. the distance between the two curtain lifting rods gradually increases from the upper end of the curtain lifting rod to the lower end of the curtain lifting rod.
Preferably, in this embodiment, the upper ends of the two curtain lifting rods are movably connected together.
The pulling assembly comprises a stay 31, an upper pulley 32 and a pull cable 33. Wherein the upper pulley 32 is mounted to the upper edge of the door opening. Preferably, the upper pulley is arranged right above the middle part of the support rod. Two ends of the stay bar 31 are respectively formed with a vertical through chute, and the two curtain lifting bars 22 are respectively slidably arranged in the through chutes at the two ends of the stay bar 31. A traction cable 33 is wound around the upper pulley 32, and a first end of the traction cable 33 is connected to the stay 31. The driving pedal 4 can be arranged on the ground in a turnover mode. The second end of the traction cable 33 is connected to one side of the drive pedal 4.
For constructors who get in and out of the door opening, only the feet are needed to step on the driving pedal to turn over the driving pedal, the driving pedal pulls the second end of the traction cable, the supporting rod is lifted upwards to prop open the lower ends of the two curtain lifting rods, and then the lower ends of the two curtains are separately exposed out of the door opening to be passed by constructors. Therefore, to the constructor who has instrument, equipment on hand, only need step on the drive footboard and then can open the door opening business turn over door opening, improved the efficiency of construction, and after constructor got into the door opening, the door curtain drew the first end of pulling the cable under the effect of its dead weight for the drive footboard resets, and the door opening is automatic closed, and then has ensured indoor heat preservation effect.
Referring to fig. 1 and 3, a hanging ring 11 is installed on a wall surface at the upper edge of the door opening. The hanging ring 11 is suspended along the wall surface direction at the upper edge. The upper end of the curtain-lifting rod 22 is connected with a lock ring 221. The locking ring 221 is movably fastened to the hanging ring 11. In the lifting process of the stay bar, the locking ring slides along the circumferential direction of the hanging ring.
Preferably, the lifting ring is fixed on the wall surface at the upper edge of the door opening through an expansion bolt, and a gap is reserved between the lower end of the lifting ring and the wall surface so that the locking ring can slide conveniently.
Referring to fig. 1 and 2, in order to prevent the traction cable from contacting the curtain body and affecting the opening effect of the door curtain, the lifting assembly further comprises a middle pulley 34 and a lower pulley 35. The middle pulley 34 is mounted at an upper corner of the door opening 1. The lower pulley 35 is installed at a lower corner of a lower edge of the door opening 1 below the driving step 4. The traction cable 33 is sequentially wound around the upper pulley 32, the middle pulley 34 and the lower pulley 35, so that the traction cable can freely and smoothly slide.
With continued reference to fig. 1 and 2, a vertical post 41 is erected from the ground. The upright 41 is connected with a fixed shaft. The driving pedal 4 is provided with a jack. The fixed shaft is rotatably inserted into the insertion hole of the driving pedal 4. The fixed shaft is arranged along the radial direction of the upright post. The first side of the driving pedal is connected to the second end of the traction cable, and the lower pulley is close to the first side of the driving pedal.
When the curtain body needs to be lifted, a second side, opposite to the first side, of the driving pedal is only needed to be stepped down, the second end of the traction rope is pulled by utilizing the lever principle, the support rod is lifted upwards to support the lower end of the curtain body, the opening of the door curtain is realized, and a worker can conveniently pass through the door curtain. The automatic closing of the door curtain is achieved by the self-weight of the door curtain when the worker passes, but the second side of the driving pedal of the door opening device of the present embodiment is connected to the delay tension spring 42 in consideration of a certain time required for the worker to pass. A delay tension spring 42 is connected between the second side of the drive pedal and the ground. The delay tension spring 42 is used for applying a pulling force to the second side of the driving pedal 4, which is far away from the second end of the traction cable 33, so as to slow down the reset speed of the second side of the driving pedal, further reduce the falling speed of the curtain body, realize slow falling of the door curtain and facilitate the passage of workers.
In order to prevent the curtain lifting rod from sliding out of the through sliding grooves at the two ends of the stay bar, an anti-dropping lock rod is connected between the two opposite side walls of the through sliding grooves. The anti-drop lock rod and the through chute enclose to form an anti-drop space. The curtain-lifting rod 22 is inserted into the anti-drop space.
Preferably, the anti-dropping screw rod and the through chute are integrally formed. In this embodiment, the anti-drop screw and the sleeve ring integrally formed with the through chute are provided with the curtain lifting rod penetrating through the sleeve ring.
It should be noted that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the present invention, which are intended to be limited only by the scope of the appended claims.
Claims (7)
1. A door opening device, comprising:
the door curtain comprises two curtain lifting rods and two curtain bodies arranged on the upper edge of a door opening, the two curtain bodies are respectively shielded on two opposite sides of the door opening, the lower ends of the two curtain lifting rods are respectively connected to the two curtain bodies, the upper ends of the two curtain lifting rods are pivoted on the upper edge, and the distance between the two curtain lifting rods is narrow at the top and wide at the bottom;
the lifting assembly comprises a stay bar, an upper pulley arranged on the upper edge and a traction cable wound on the upper pulley, wherein vertical through chutes are formed at two ends of the stay bar respectively, the two curtain lifting rods are arranged in the through chutes at two ends of the stay bar respectively in a sliding manner, and the first end of the traction cable is connected to the stay bar; and
the driving pedal is arranged on the ground in a mode of being overturned, and the second end of the traction cable is connected to one side of the driving pedal.
2. The door opening device according to claim 1, wherein a hanging ring is mounted on the upper edge, the hanging ring is arranged along the wall surface direction of the upper edge, a locking ring is connected to the upper end of the curtain lifting rod, and the locking ring is buckled and connected to the hanging ring.
3. The door opening device according to claim 1, wherein the lifting assembly further comprises a middle pulley and a lower pulley, the middle pulley is mounted at a corner of the door opening, the lower pulley is mounted at a lower edge of the door opening and is located below the driving pedal, and the traction cable is sequentially wound around the middle pulley and the lower pulley.
4. The door opening device according to claim 1, wherein a delay tension spring for applying a tension to a side of the driving pedal away from the second end of the traction cable is installed on the ground.
5. The door opening device according to claim 4, wherein a vertical column is vertically arranged on the ground, a fixed shaft is connected to the vertical column, a jack is arranged on the driving pedal, and the fixed shaft is rotatably inserted into the jack.
6. The door opening device according to claim 1, wherein an anti-dropping lock rod is connected between two opposite side walls of the through chute, the anti-dropping lock rod and the through chute enclose an anti-dropping space, and the curtain lifting rod is inserted into the anti-dropping space.
7. A door opening device according to claim 1, wherein said upper pulley is located directly above the middle of said stay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020023299.3U CN211722707U (en) | 2020-01-06 | 2020-01-06 | Door opening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020023299.3U CN211722707U (en) | 2020-01-06 | 2020-01-06 | Door opening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211722707U true CN211722707U (en) | 2020-10-23 |
Family
ID=72867969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020023299.3U Active CN211722707U (en) | 2020-01-06 | 2020-01-06 | Door opening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211722707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114145616A (en) * | 2021-12-02 | 2022-03-08 | 安阳市肿瘤医院 | Medical sanitary safety door curtain opening and closing device |
-
2020
- 2020-01-06 CN CN202020023299.3U patent/CN211722707U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114145616A (en) * | 2021-12-02 | 2022-03-08 | 安阳市肿瘤医院 | Medical sanitary safety door curtain opening and closing device |
| CN114145616B (en) * | 2021-12-02 | 2023-02-28 | 安阳市肿瘤医院 | Medical sanitary safety door curtain opening and closing device |
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