阅读说明：本技术 一种人防门的活门槛结构 (Movable doorsill structure of civil air defense door ) 是由 龚雅斌 于 2020-06-22 设计创作，主要内容包括：本发明提供一种人防门的活门槛结构,涉及防护设备领域,包括防护门,防护门铰接在门框上,地面上开设有向下延伸的竖槽,竖槽内滑动有相适配的门槛,地面内开设有空腔与竖槽底部连通,空腔内转动连接有圆辊,圆辊为横放的圆柱形状,圆辊与门槛之间滑动有水平的横杆,横杆一端与门槛传动连接,另一端滑动连接在圆辊内部,横杆水平滑动推动门槛在竖槽内滑动,人为踩压杠杆端部使圆辊在空腔内转动,圆辊拉动横杆在空腔内滑动。门槛及其连接结构在不使用时可完全隐藏在地面内,使防护门周边整洁,不影响正常使用。通过人工踩压杠杆,可使门槛逐渐向上滑出地面,通过自己重力可使门槛滑出或收回,不需要电能及其他外力辅助,操作方便且节能。(The invention provides a movable doorsill structure of a civil air defense door, which relates to the field of protective equipment and comprises a protective door, wherein the protective door is hinged on a door frame, a vertical groove extending downwards is formed in the ground, a matched doorsill slides in the vertical groove, a cavity is formed in the ground and is communicated with the bottom of the vertical groove, a round roller is rotationally connected in the cavity, the round roller is in a transverse cylindrical shape, a horizontal cross rod slides between the round roller and the doorsill, one end of the cross rod is in transmission connection with the doorsill, the other end of the cross rod is in sliding connection with the inside of the round roller, the cross rod horizontally slides to push the doorsill to slide in the vertical groove, the end part of the lever is manually stepped to enable the round roller to rotate. The threshold and the connecting structure thereof can be completely hidden in the ground when not in use, so that the periphery of the protective door is neat and does not influence normal use. The doorsill can gradually slide upwards out of the ground by manually stepping on and pressing the lever, and can slide out or retract by gravity, so that the doorsill does not need to be assisted by electric energy and other external force, is convenient to operate and saves energy.)

1. The utility model provides a threshold (3) structure that lives of people's air defense door, includes guard gate (1), guard gate (1) articulates on the door frame, its characterized in that: the ground is provided with a vertical groove (2) extending downwards, the vertical groove (2) is internally provided with a doorsill (3) matched with the vertical groove in a sliding manner, the ground is internally provided with a cavity (4) communicated with the bottom of the vertical groove (2), the cavity (4) is rotationally connected with a round roller (5), the round roller (5) is in a horizontal cylindrical shape, a horizontal cross rod (6) slides between the round roller (5) and the doorsill (3), one end of the cross rod (6) is in transmission connection with the doorsill (3), the other end of the cross rod is in sliding connection with the inside of the round roller (5), the cross rod (6) horizontally slides to push the doorsill (3) to slide in the vertical groove (2), one side of the round roller (5) is in transmission connection with a lever (7), the ground is provided with a groove (8), one end of the lever (7), which is far away from the round roller (5), extends into the groove (8), and the end of the lever (7) is manually pressed to enable the round, the round roller (5) pulls the cross rod (6) to slide in the cavity (4).

2. The doorsill (3) structure of a civil air defense door according to claim 1, characterized in that: threshold (3) lateral wall and perpendicular groove (2) lateral wall sliding contact, threshold (3) bottom surface articulates there is push rod (9), push rod (9) other end articulates there is connecting rod (10), horizontal pole (6) one end is connected on connecting rod (10), set up ring groove (11) that extend inwards on roller (5) lateral wall, horizontal pole (6) other end stretches into in ring groove (11), it has slant annular (12) to have seted up the slope in ring groove (11), slant annular (12) stretch into in the lateral wall of ring groove (11), horizontal pole (6) end connection has ball (20) of looks adaptation to slide in slant annular (12), ball (20) diameter is greater than the thickness in ring groove (11).

3. The doorsill (3) structure of a civil air defense door according to claim 1, characterized in that: one side of the round roller (5) far away from the cross rod (6) is rotatably connected with the side wall of the cavity (4) through a round rod (13), a bearing is arranged in the side wall of the cavity (4), the round rod (13) is inserted into the bearing, a ratchet (14) is arranged on the arc-shaped side wall of the round roller (5), a pawl (15) matched with the ratchet (14) is slidably connected to one side of the ratchet (14), the pawl (15) is rotatably connected to a support plate (16), and the side wall of the support plate (16) is connected with one end of a lever (7).

4. The doorsill (3) structure of a civil air defense door according to claim 1, characterized in that: the utility model discloses a cavity (4) of a motor vehicle, including lever (7), bull stick (17), spring (18) are connected with the one end below that cavity (4) lateral wall rotated to be connected with horizontally bull stick (17) outside lever (7), bull stick (17) both ends are connected with the rotation of cavity (4), lever (7) length between bull stick (17) and spring (18) is greater than the length of lever (7) between bull stick (17) and backup pad (16).

5. The doorsill (3) structure of a civil air defense door according to claim 1, characterized in that: the connecting rod (10) is hinged with a stabilizer bar (19), the other end of the stabilizer bar (19) is connected with the bottom of the cavity (4) in a sliding mode, and a '>' shaped structure is formed between the push rod (9) and the stabilizer bar (19).

Technical Field

The invention relates to the field of protective equipment, in particular to a movable doorsill structure of a civil air defense door.

Background

The civil air defense door movable threshold is characterized in that the threshold is not installed at ordinary times, the ground is smooth, personnel and vehicles can conveniently pass through the civil air defense door movable threshold, and the threshold is quickly installed in the process of imminent war so as to meet the requirements of protection and sealing functions and quickly realize the conversion of the ordinary war function.

The patent number CN201810226064.1 discloses a movable threshold type double-leaf civil air defense door structure, which comprises two protective doors, wherein an overturning groove is formed in the ground, a movable threshold is rotationally connected in the overturning groove, and the movable threshold comprises a sealing plate and a butt plate vertically fixed on one side of the sealing plate; the peripheral wall of the turnover groove is provided with a containing groove, a shifting block is arranged in the containing groove, a main pull rope is arranged in the containing groove, two ends of the main pull rope are respectively connected to two ends of the shifting block, two sides of the shifting block are respectively provided with a guide wheel, and the main pull rope bypasses the guide wheels and is in a tightening state; one side of the shifting block is provided with a traction assembly for dragging the main pull rope in a reciprocating way.

However, the device needs a motor to provide power, and the motor is easy to damage and inconvenient to repair under the condition of not using frequently. When the motor is not used, the device can manually pull the main pull rope to push the turnover of the movable doorsill, the pull rope is easily rusted or bent when being placed underground, and the movable doorsill is not only hard to pull by hand, but also easily stained with iron rust and other dirty objects.

Disclosure of Invention

The invention aims to provide a movable doorsill structure of a civil air defense door, which aims to solve the technical problem.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a threshold structure that lives of people's air defense door, includes the guard gate, the guard gate articulates on the door frame, subaerial vertical slot of having seted up downwardly extending, it has the threshold of looks adaptation to slide in the vertical slot, subaerial cavity and vertical slot bottom intercommunication of having seted up, the cavity internal rotation is connected with the round roller, the round roller is horizontal cylinder shape, it has the horizontally horizontal pole to slide between round roller and the threshold, horizontal pole one end and threshold transmission are connected, and other end sliding connection is inside the round roller, horizontal pole horizontal slip promotes the threshold and slides in erecting the slot, round roller one side transmission is connected with the lever, subaerial the recess of having seted up, the one end that the round roller was kept away from to the lever is stretched into in the recess, and the people is for stepping on the pressure the lever tip makes the round roller at the cavity internal rotation, round roller pulling horizontal.

Preferably, the threshold lateral wall with erect groove lateral wall sliding contact, the threshold bottom surface articulates there is the push rod, the push rod other end articulates there is the connecting rod, horizontal pole one end is connected on the connecting rod, set up the ring groove that extends inwards on the round roller lateral wall, the horizontal pole other end stretches into the ring inslot, it has the slant annular to open the slope in the ring groove, the slant annular stretches into in the lateral wall of ring groove, the ball that the horizontal pole tip is connected with the looks adaptation slides in the slant annular, the ball diameter is greater than the thickness in ring groove.

Preferably, one side, far away from the cross rod, of the round roller is rotatably connected with the side wall of the cavity through the round rod, a bearing is arranged in the side wall of the cavity, the round rod is inserted into the bearing, ratchets are arranged on the arc-shaped side wall of the round roller, a pawl matched with the ratchets is slidably connected to one side of the ratchet wheel, the pawl is rotatably connected to the supporting plate, and the side wall of the supporting plate is connected with one end of the lever.

Preferably, the lever is externally connected with a horizontal rotating rod, the two ends of the rotating rod are rotationally connected with the side wall of the cavity, a spring is connected below one end of the lever extending into the groove, and the length of the lever between the rotating rod and the spring is greater than that between the rotating rod and the supporting plate.

Preferably, the connecting rod is hinged with a stabilizer bar, the other end of the stabilizer bar is connected with the bottom of the cavity in a sliding mode, and a '>' shaped structure is formed between the push rod and the stabilizer bar.

The invention has the beneficial effects that:

1. the threshold and the connecting structure thereof can be completely hidden in the ground when not in use, so that the periphery of the protective door is neat and does not influence normal use.

2. The doorsill can gradually slide upwards out of the ground by manually stepping on and pressing the lever, and can slide out or retract by gravity, so that the doorsill does not need to be assisted by electric energy and other external force, is convenient to operate and saves energy.

Drawings

FIG. 1 is a side view of a movable doorsill structure of a civil air defense door of the invention;

FIG. 2 is a schematic structural view of the side of the connecting rod of the present invention;

FIG. 3 is a side view of the connecting structure of the round roller and the lever according to the present invention;

FIG. 4 is a top view structural view of a connecting structure of a round roller and a lever according to the present invention;

FIG. 5 is a schematic view showing the structure of a round roller according to the present invention;

FIG. 6 is a sectional view showing the inside of a round roll in the present invention;

FIG. 7 is a schematic view of the exterior of the protective door of the present invention;

reference numerals: 1. a protective door; 2. a vertical slot; 3. a threshold; 4. a cavity; 5. a round roller; 6. a cross bar; 7. a lever; 8. a groove; 9. a push rod; 10. a connecting rod; 11. a circular groove; 12. an oblique ring groove; 13. a round bar; 14. a ratchet; 15. a pawl; 16. a support plate; 17. a rotating rod; 18. a spring; 19. a stabilizer bar; 20. and (4) a ball.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easily understood, the invention is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention are described below with reference to the accompanying drawings.

As shown in fig. 1-7, a movable doorsill structure of a civil air defense door comprises a protective door 1, wherein the protective door 1 is hinged on a door frame, a vertical groove 2 extending downwards is arranged on the ground, the vertical groove 2 is parallel to the door edge of the protective door 1, the length of the vertical groove 2 is larger than that of the protective door 1, a doorsill 3 matched with the protective door is arranged in the vertical groove 2 in a sliding manner, the side wall of the doorsill 3 is in sliding contact with the side wall of the vertical groove 2, and the doorsill 3 can be abutted against the door panel after being upwards slid out of the vertical groove 2. The ground is internally provided with a cavity 4, the cavity 4 is communicated with the bottom of the vertical groove 2, the cavity 4 extends towards the direction away from the protective door 1, two sides of the bottom surface of the doorsill 3 are hinged with inclined push rods 9, a connecting rod 10 is connected between the two push rods 9, one end, away from the doorsill 3, of each push rod 9 is hinged on the corresponding connecting rod 10, the connecting rod 10 is hinged with two stabilizer bars 19, a '>' shaped structure is formed between each push rod 9 and each stabilizer bar 19, and the bottom ends of the stabilizer bars 19 slide at the bottom of. The horizontal cross rod 6 is connected to the center of the connecting rod 10, a sliding groove matched with the cross rod 6 is formed in the cavity 4, the side wall of the cross rod 6 is in sliding contact with the ground, the cross rod 6 can only slide horizontally, the cross rod 6 can slide towards the direction of the doorsill 3 to push the connecting rod 10 to slide, the angle between the push rod 9 and the stabilizing rod 19 is increased, and the doorsill 3 slides upwards out of the ground in the vertical groove 2.

The rotation of 4 cavitys is connected with round roller 5, and round roller 5 is located the one end that threshold 3 was kept away from to horizontal pole 6, and the cambered surface lateral wall and the 4 diapire sliding contact of cavity of round roller 5, and the one end lateral wall that horizontal pole 6 was kept away from to round roller 5 passes through round bar 13 and is connected with the rotation of 4 lateral walls of cavity, is provided with the bearing in the 4 lateral walls of cavity, and round bar 13 inserts in the bearing, sets up the more nimble of bearing messenger round roller 5 internal rotation in cavity 4. Offer ring groove 11 that extends inwards on the lateral wall that round roller 5 is close to horizontal pole 6, 6 tip of horizontal pole stretch into in ring groove 11 and slide in ring groove 11, set up the slant annular 12 to 13 direction slopes of round bar in the ring groove 11, the diameter of slant annular 12 is great, slant annular 12 stretches into in the lateral wall of ring groove 11, the ball 20 that 6 end connection of horizontal pole has the looks adaptation slides in slant annular 12, the diameter of ball 20 is greater than the thickness of ring groove 11, make ball 20 slide in slant annular 12 all the time.

The arc-shaped side wall of the round roller 5 is provided with a looped ratchet 14, the arc-shaped side wall of the round roller 5 is provided with an annular groove, the ratchet 14 is connected on the annular groove, the height of the ratchet 14 is smaller than the thickness of the annular groove, the ratchet 14 is not contacted with the side wall of the cavity 4 when the round roller 5 rotates, the ratchet 14 is prevented from obstructing the rotation of the round roller 5, one side of the ratchet 14 is slidably connected with two pawls 15, the two pawls 15 are both rotatably connected on a support plate 16, the two pawls 15 are both arc-shaped pawls matched with the ratchet 14, the directions of the two pawls 15 are opposite, the side wall of the support plate 16 is connected with a lever 7, the lever 7 is externally connected with a horizontal rotating rod 17, two ends of the rotating rod 17 are rotatably connected with the side wall of the cavity 4, a spring 18 is connected below one end of the rotating rod 17 far away from the support plate 16, when the lever 7 at the end of the spring, the pawl 15 pushes the ratchet 14 to upwards rotate the round roller 5, the ratchet 14 and the pawl 15 enable the round roller 5 to rotate only in one direction, when the round roller 5 rotates, the cross rod 6 can only horizontally slide, the round ball 20 at the end of the cross rod 6 can slide in the inclined annular groove 12, the round ball 20 drives the cross rod 6 to horizontally slide in the annular groove 11, the connecting rod 10 is pulled to horizontally slide, and the doorsill 3 slides out of or into the vertical groove 2. The doorsill 3 slides out of the vertical groove 2 and then is abutted against the door panel, the doorsill 3 is pushed and pulled by the door panel to exert an acting force in the horizontal direction, so that the doorsill 3 is extruded with the ground of the side wall, and the force applied to the doorsill 3 is gravity and vertical supporting force, so that the doorsill 3 cannot be extruded and slide into the vertical groove 2 by the pushing and pulling of the door panel.

The ground is provided with a groove 8, one end of the lever 7, which is far away from the round roller 5, extends into the groove 8, the ground is provided with a cover plate to cover the groove 8 and the top surface of the vertical groove 2, when the doorsill 3 is needed to be used, the cover plate is opened, the end part of the lever 7 can be manually stepped to enable the round roller 5 to rotate, the length of the lever 7 between the rotating rod 17 and the spring 18 is larger than that of the lever 7 between the rotating rod 17 and the supporting plate 16, and the round roller 5 can be pried to rotate by the manual stepping force by utilizing the principle of the lever 7.

The working principle is as follows: after the civil air defense door is closed, the cover plate of the groove 8 and the cover of the vertical groove 2 are opened, the lever 7 is stepped downwards and positioned at one end of the groove 8, the supporting plate 16 at the other end of the lever 7 is lifted upwards, the pawl 15 pushes the ratchet 14 on the side wall of the round roller 5, the round roller 5 rotates, the lever 7 can be reset upwards under the elastic force of the spring 18, the lever 7 is continuously stepped, the pawl 15 can push the round roller 5 to rotate all the time, the inclined ring groove 12 in the round roller 5 also rotates along with the round roller 5 in the rotating process, because one end of the cross rod 6 with the round ball 20 always slides in the inclined ring groove 12, the cross rod 6 can slide towards the outside of the ring groove 11, the connecting rod 10 is pushed to horizontally slide, the connecting rod 10 slides to push the doorsill 3 out of the vertical groove 2 through the push rod 9, the lever 7 is continuously stepped on, the round roller 5 can rotate for one circle, the inclined ring groove 12 resets, the cross rod 6 slides in the ring groove 11, and the doorsill 3 is pulled downwards into the vertical groove 2.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.