CN210439904U

CN210439904U - Civil air defense door leaf convenient to installation and mounting structure thereof

Info

Publication number: CN210439904U
Application number: CN201921180783.0U
Authority: CN
Inventors: 董天华
Original assignee: Chongqing Kufeng Civil Air Defense Engineering Equipment Co Ltd
Current assignee: Chongqing Kufeng Civil Air Defense Engineering Equipment Co Ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-05-01
Anticipated expiration: 2029-07-25

Abstract

The utility model discloses a civil air defense door leaf convenient to install, which comprises a door leaf main body, wherein a rotating shaft is fixedly arranged at the rotating side of the door leaf main body, an arc-shaped concave part is respectively arranged at the upper end and the lower end of the rotating shaft, a plurality of reinforcing plates with inner ends fixedly connected with the door leaf main body are sleeved at the middle part of the rotating shaft at intervals, the reinforcing plates are fixedly connected with the rotating shaft, and the outer ends of the reinforcing plates are arc-shaped; and a reinforcing plate is fixedly connected with the upper side and the lower side of each reinforcing plate, and the left side and the right side of each reinforcing plate are fixedly connected with the door leaf main body and the rotating shaft respectively. During assembly, the rotating shaft is assembled in the upper shaft head and the lower shaft head respectively, and balls matched with the end part of the rotating shaft are arranged in the upper shaft head and the lower shaft head respectively.

Description

Civil air defense door leaf convenient to installation and mounting structure thereof

Technical Field

The utility model relates to a people's air defense door, concretely relates to people's air defense door leaf convenient to installation and mounting structure thereof.

Background

People's air defense is also called civil defense, which is an international common word and is an activity that governments mobilize and organize the masses, take measures of air attack prevention, disaster resistance and relief, implement rescue actions and prevent and reduce disaster harm. The civil air defense door belongs to civil air defense protective equipment, and is a door of an entrance and an exit of a civil air defense project as the name suggests.

In order to ensure a better protection effect, the civil air defense door is made of thick steel plates or is of a steel-concrete structure. Therefore, when the door is installed, the door frame and the door leaf need to be installed in a hoisting mode. The mounting structure of the existing vertical rotating type door leaf mainly comprises two types, one type is connected through a hinge mechanism in a rotating mode, and the other type is connected through a rotating shaft in a rotating mode after the rotating shaft is welded on the door leaf. When the door leaf adopting the hinge mechanism is installed, two outward convex lugs on the door leaf need to be aligned to two hinge seats on the door frame, so that the lifting is very troublesome, and time and labor are wasted. The rotating shaft of the existing rotating shaft type door leaf is fixedly connected with the door leaf through welding, and the rotating shaft is connected with the mounting seat on the door frame in a rotating mode after being abutted against the ball at the lower end of the door frame after being sleeved. The mode that above-mentioned pivot and door leaf side welded fastening exist welding work volume big, the not enough problem of joint strength, simultaneously, this kind of pivot upper end is the plane, and is great with the friction between the mount pad, is unfavorable for rotating. In addition, when the existing rotating shaft is sleeved on the mounting seat, the rotating shaft is difficult to assemble into the mounting seat, and no space for the rotating shaft to give way is provided during installation.

Disclosure of Invention

To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide a joint strength height, simple to operate, the door leaf is convenient for pivoted people's air defense door leaf and mounting structure behind the installation.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a civil air defense door leaf convenient to install comprises a door leaf main body, wherein a rotating shaft is fixedly arranged on the rotating side of the door leaf main body, and the civil air defense door leaf is characterized in that the upper end and the lower end of the rotating shaft are respectively provided with an arc-shaped concave part, a plurality of reinforcing plates with inner ends fixedly connected with the door leaf main body are sleeved in the middle of the rotating shaft at intervals, the reinforcing plates are fixedly connected with the rotating shaft, and the outer ends of the reinforcing plates are arc-shaped; and a reinforcing plate is fixedly connected with the upper side and the lower side of each reinforcing plate, and the left side and the right side of each reinforcing plate are fixedly connected with the door leaf main body and the rotating shaft respectively. Like this, all set up the concave part in the arc at the upper and lower both ends of rotation axis after, can make both ends all offset with the ball in the mount pad about the rotation axis to the rotation of the door leaf of being convenient for more. Meanwhile, the door leaf can be more universal after being arranged. The rotating shaft is sleeved on the reinforcing plate, and the reinforcing plate is connected with the door leaf main body, so that the welding workload can be reduced, and meanwhile, the reinforcing plate can bear part of external force of the rotating shaft. The reinforcing plate can share part of external force of the reinforcing plate, so that the reinforcing plate is more stable.

Furthermore, at least one connecting plate is arranged between the front and back surfaces of the reinforcing plate and every two adjacent reinforcing plates. Therefore, the reinforcing plate and the rotating shaft can be effectively connected together, and the installation strength of the rotating shaft is further improved.

Furthermore, an outer edge covering which is fixedly connected with the inner end and the reinforcing plate and wraps the middle of the reinforcing plate and the middle of the rotating shaft is arranged on the rotating side of the door leaf main body. Like this, the outsourcing limit can further increase the joint strength of pivot, simultaneously, can also prevent that the dust from getting into, plays the effect of beautifying to the door leaf.

A mounting structure of a civil air defense door leaf comprises a door leaf, a lower shaft head and an upper shaft head which are mounted in a door frame, wherein a rotating shaft of the door leaf is respectively assembled in an upper shaft head and a lower shaft head; a buffer spring is fixedly arranged at the lower end of the buffer block of the lower shaft head; go up the buffer block fixed mounting of spindle nose in its cushion chamber, the buffer block axial length of lower spindle nose is less than the axle center length of cushion chamber, and this buffer block can axial displacement and extrusion buffer spring under the exogenic thrust, makes buffer spring pressurized shorten. Like this, when the installation, with the door leaf with the loop wheel machine back of lifting by crane, insert the lower extreme of rotation axis in the rotation axis installation cavity of lower spindle nose earlier, under the action of gravity of door leaf, the rotation axis pushes down to force the ball that is located the rotation axis below to be pressurized, and then oppression buffer block and buffer spring, make buffer spring produce deformation, the rotation axis moves down, thereby increased the installation space between rotation axis upper end and the upper spindle nose, it is more convenient to make the installation, can effectively shorten the assemble duration of door leaf. After the upper end and the lower end of the rotating shaft are abutted against the balls, the door leaf rotates more labor-saving and more convenient under the action of the balls.

Furthermore, the diameter of the through hole of the partition plate is smaller than or equal to that of the ball, and the side wall of the through hole is arc-shaped. Thus, the lower end of the ball can be always controlled in the buffer cavity through the through hole. And after the side wall of the through hole is arc-shaped, the side wall of the through hole can be matched with the ball conveniently, so that the ball can smoothly pass through the through hole and cannot generate large friction with the side wall of the through hole.

Further, all fixedly being equipped with a mounting panel in the upper end of last spindle nose and the lower extreme of lower spindle nose, the mounting panel is circular, and the diameter is greater than last spindle nose and lower spindle nose. Therefore, the arranged mounting plate can be used for conveniently mounting the upper shaft head and the lower shaft head in the door frame.

Furthermore, a groove is arranged at the lower end of the buffer block of the lower shaft head, and a bearing column which penetrates through the bottom of the lower shaft head and the upper end of which extends into the groove of the buffer block is arranged at the upper end of the mounting plate of the lower shaft head; the buffer spring is sleeved on the bearing column, the upper end of the buffer spring is fixed at the bottom of the groove, and the lower end of the buffer spring is fixed at the bottom of the buffer cavity of the lower shaft head. Like this, the heel post can carry on spacingly to buffer spring, simultaneously, can also stereotype buffer spring and provide the compression route. In addition, after the buffer block is pressed down and moved back to offset with the heel post, can play the supporting role to the buffer block.

Compared with the prior art, the utility model discloses the people's air defense door leaf convenient to installation that obtains and mounting structure have following advantage:

1. both ends cooperate with the ball in last spindle nose and the lower spindle nose respectively about the rotation axis for the door leaf rotates more laborsavingly, simultaneously, still is equipped with buffer spring in the lower spindle nose, and buffer spring compresses after the pressurized, has increased the installation space between rotation axis upper end and the last spindle nose, has reduced the installation degree of difficulty.

2. The rotation axis passes through gusset plate, reinforcing plate and connecting plate and door leaf side fixed connection, has reduced the welding volume of rotation axis, simultaneously, can effectively increase the joint strength of rotation axis.

Drawings

FIG. 1 is a schematic structural diagram of a civil air defense door leaf in an embodiment;

fig. 2 is a schematic view of an installation structure of a rotating shaft in a door leaf according to an embodiment.

In the figure: door leaf main part 1, gusset plate 2, rotation axis 3, arc indent portion 31, reinforcing plate 4, connecting plate 5, outsourcing limit 6, upper spindle nose 7, lower spindle nose 8, division board 9, through-hole 91, buffer block 10, arc indent 101, recess 102, ball 11, buffer spring 12, mounting panel 13, heel post 131.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example (b):

the civil air defense door leaf convenient to install provided by the embodiment comprises a door leaf main body 1, wherein a rotating shaft 3 is fixedly arranged on the rotating side of the door leaf main body 1, the upper end and the lower end of the rotating shaft 3 are respectively provided with an arc-shaped concave part 31, a plurality of reinforcing plates 2 with inner ends fixedly connected with the door leaf main body 1 are sleeved in the middle of the rotating shaft 3 at intervals, the reinforcing plates 2 are fixedly connected with the rotating shaft, and the outer ends of the reinforcing plates are arc-shaped; an upper side and a lower side which are fixedly connected with the reinforcing plates 2 are arranged between every two adjacent reinforcing plates, and the left side and the right side of each reinforcing plate are respectively fixedly connected with the door leaf main body 1 and the rotating shaft 3.

Still be equipped with a connecting plate 5 between the positive and negative two sides of reinforcing plate 4, per two adjacent gusset plates 2, when concrete implementation, for further increasing the installation intensity of rotation axis 3, can also increase one and be the forked steel sheet with the connecting plate, both ends respectively with door leaf main part and rotation axis fixed connection around this steel sheet.

The rotating side of the door leaf main body 1 is also provided with an outer wrapping edge 6, the inner end of which is fixedly connected with the reinforcing plate 2 and wraps the middle parts of the reinforcing plate 2 and the rotating shaft 3.

The reinforcing plate 2, the reinforcing plate 4, the connecting plate 5 and the outer wrapping edge 6 are all made of steel plates and are fixed in a welding mode.

The mounting structure of the door leaf of the civil air defense door comprises the door leaf, a lower shaft head and an upper shaft head which are mounted in a door frame, wherein a rotating shaft 3 of the door leaf is respectively assembled in the upper shaft head 7 and the lower shaft head 8, a cavity for assembling the rotating shaft 3 is respectively arranged in the lower shaft head 8 and the upper shaft head 7, a partition plate 9 with a through hole in the middle is arranged in the middle of the cavity, the cavity is divided into a rotating shaft mounting cavity and a buffer cavity by the partition plate 9, a buffer block 10 is arranged in the buffer cavity, an arc-shaped lower concave part 101 is arranged at one end, close to the partition plate, of the buffer block 10, a ball 11 is arranged in the arc-shaped lower concave part 101, and the upper end of the ball 11 can penetrate through the through hole 91 in the middle of the partition plate 9 and then extend; a buffer spring 12 is fixedly arranged at the lower end of the buffer block 10 of the lower shaft head 8; the buffer block 10 of the upper shaft head 7 is fixedly arranged in the buffer cavity of the upper shaft head, the axial length of the buffer block 10 of the lower shaft head 8 is smaller than the axial length of the buffer cavity, and the buffer block can axially move and extrude the buffer spring 12 under the external force pushing force, so that the buffer spring 12 is compressed and shortened.

The diameter of the through hole of the partition plate 9 is smaller than or equal to that of the ball 11, and the side wall of the through hole is arc-shaped.

All fixedly being equipped with a mounting panel 13 in the upper end of last spindle nose 7 and the lower extreme of lower spindle nose 8, the mounting panel is circular, and the diameter is greater than last spindle nose and lower spindle nose.

A groove 102 is arranged at the lower end of the buffer block 10 of the lower shaft head, and a bearing column 131 which penetrates through the bottom of the lower shaft head 8 and the upper end of which extends into the groove 102 of the buffer block is arranged at the upper end of the mounting plate 13 of the lower shaft head; the buffer spring 12 is sleeved on the bearing column 131, the upper end of the buffer spring 12 is fixed at the bottom of the groove 102, and the lower end of the buffer spring is fixed at the bottom of the buffer cavity of the lower shaft head 8.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and although the applicant has described the present invention in detail with reference to the preferred embodiments, those skilled in the art should understand that those modifications or equivalent substitutions to the technical solutions of the present invention can be made without departing from the spirit and scope of the technical solutions, and all the modifications and equivalent substitutions should be covered by the claims of the present invention.

Claims

1. A civil air defense door leaf convenient to install comprises a door leaf main body (1), wherein a rotating shaft (3) is fixedly arranged on the rotating side of the door leaf main body (1), and is characterized in that the upper end and the lower end of the rotating shaft (3) are respectively provided with an arc-shaped concave part (31), a plurality of reinforcing plates (2) with inner ends fixedly connected with the door leaf main body (1) are sleeved in the middle of the rotating shaft (3) at intervals, the reinforcing plates (2) are fixedly connected with the rotating shaft, and the outer ends of the reinforcing plates are arc-shaped; an upper side and a lower side which are fixedly connected with the reinforcing plates (2) are arranged between every two adjacent reinforcing plates, and the left side and the right side of each reinforcing plate are respectively fixedly connected with the door leaf main body (1) and the rotating shaft (3).

2. The civil air defense door leaf convenient for installation according to claim 1, characterized in that at least one connecting plate (5) is further provided between each two adjacent reinforcing plates (2) on the front and back sides of the reinforcing plate (4).

3. The civil air defense door leaf convenient for installation according to claim 1 or 2, characterized in that an outer edge covering (6) is further arranged on the rotating side of the door leaf main body (1), the inner end of the outer edge covering is fixedly connected with the reinforcing plate (2), and the middle parts of the reinforcing plate (2) and the rotating shaft (3) are wrapped inside.

4. A mounting structure of a civil air defense door leaf comprises a door leaf, a lower shaft head and an upper shaft head which are mounted in a door frame, wherein a rotating shaft (3) of the door leaf is respectively assembled in an upper shaft head (7) and a lower shaft head (8), the mounting structure is characterized in that the door leaf structure is as claimed in claim 3, a concave cavity for assembling the rotating shaft (3) is respectively arranged in the lower shaft head (8) and the upper shaft head (7), a partition plate (9) with a through hole in the middle is arranged in the middle of the concave cavity, the concave cavity is divided into a rotating shaft mounting cavity and a buffer cavity by the partition plate (9), a buffer block (10) is arranged in the buffer cavity, an arc-shaped concave part (101) is arranged at one end of the buffer block (10) close to the partition plate, a ball (11) is arranged in the arc-shaped concave part (101), the upper end of the ball (11) can penetrate through the through hole (91) in, and is abutted against an arc-shaped concave part (31) at the end part of the rotating shaft; a buffer spring (12) is fixedly arranged at the lower end of the buffer block (10) of the lower shaft head (8); go up buffer block (10) fixed mounting of spindle nose (7) in its cushion chamber, buffer block (10) axial length of lower spindle nose (8) is less than the axle center length of cushion chamber, and this buffer block ability axial displacement and extrusion buffer spring (12) under the exogenic thrust make buffer spring (12) pressurized shorten.

5. The mounting structure of the civil air defense door leaf according to claim 4, characterized in that the diameter of the through hole of the separation plate (9) is smaller than or equal to the diameter of the ball (11), and the side wall of the through hole is arc-shaped.

6. The mounting structure of the civil air defense door leaf according to claim 4 or 5, characterized in that a mounting plate (13) is fixedly arranged at the upper end of the upper shaft head (7) and the lower end of the lower shaft head (8), the mounting plate is circular and has a diameter larger than the upper shaft head and the lower shaft head.

7. The mounting structure of the civil air defense door leaf as claimed in claim 6, wherein the lower end of the buffer block (10) of the lower shaft head is provided with a groove (102), the upper end of the mounting plate (13) of the lower shaft head is provided with a bearing column (131) which penetrates through the bottom of the lower shaft head (8) and the upper end of which extends into the groove (102) of the buffer block; the buffer spring (12) is sleeved on the bearing column (131), the upper end of the buffer spring (12) is fixed at the bottom of the groove (102), and the lower end of the buffer spring is fixed at the bottom of the buffer cavity of the lower shaft head (8).