Anti-seismic and heat-insulating civil air defense door

Abstract

The invention provides an anti-seismic heat-insulation civil air defense door which comprises a door frame and a door leaf, a rotary connecting piece is arranged between the door leaf and the door frame, an adjusting seat assembly is arranged at the lower end of the rotary connecting piece, a plurality of shock absorption dampers are embedded in the door frame, a lock bolt is arranged on the side, close to the shock absorption dampers, of the door frame, and a plurality of cushioning lock catches corresponding to the shock absorption dampers are arranged on the door leaf. And a fixed handle corresponding to the lock bolt is arranged on the door leaf. The door has the beneficial effects that the door leaf and the door frame are adjusted to be matched when the door leaf and the door frame cannot be closed through the adjustable connecting structure, complete closing of the door leaf and the door frame is achieved, the door frame and the door leaf are provided with the two-way buffering structures, buffering acting force is generated during closing, and vibration caused by direct collision is avoided.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of civil air defense doors, and in particular to an earthquake-resistant and heat-insulating civil air defense door. Background Art

[0002] The classification of civil defense doors is quite distinct, including ordinary single-leaf and double-leaf protective closed doors and closed doors, movable threshold single-leaf and double-leaf protective closed doors and closed doors, and other civil defense equipment.

[0003] The inventor discovered the following defects during the operation of the specific embodiment: Traditional civil air defense door structures mostly use hinge structures, which are prone to loosening or deformation, causing the door leaf to fall and affect closing, and causing damage to the door frame and door leaf after impact. In addition, the door leaf directly collides with the door when closing, causing vibration. After long-term use, it is easy to cause the door panel to close on the door frame, affecting its service life.

[0004] It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art. Summary of the invention

[0005] 1. Technical problems to be solved by the invention: The present invention provides an earthquake-resistant and heat-insulating civil air defense door to solve the technical problems existing in the above-mentioned background technology.

[0006] 2. Technical solution: In order to achieve the above-mentioned objectives, the technical solution provided by the present invention is: an earthquake-resistant and heat-insulating civil defense door, comprising a door frame and a door leaf, a rotating connecting piece is provided between the door leaf and the door frame, an adjustment seat assembly is provided at the lower end of the rotating connecting piece, a plurality of shock-absorbing dampers are embedded on the door frame, a locking bolt is provided on the side of the door frame close to the shock-absorbing damper, a plurality of shock-absorbing lock buckles corresponding to the shock-absorbing damper are provided on the door leaf, and a fixed handle corresponding to the locking bolt is provided on the door leaf.

[0007] Furthermore, a floating groove is provided at the upper end of the door frame near the rotating connection member, and a floating spring seat is provided in the floating groove. The rotating connection member includes a sleeve and a rotating shaft. The upper end of the rotating shaft is embedded in the floating groove and is in contact with the floating spring seat.

[0008] Furthermore, a plurality of connecting plates are provided on one side of the door leaf, and one end of the plurality of connecting plates is sleeved on the rotating shaft through a sleeve and fixedly connected to the rotating shaft.

[0009] Furthermore, the adjustment seat assembly includes a fixed seat and a rotating seat, the shaft sleeve is embedded in the rotating seat, and the rotating shaft is rotatably connected to the rotating seat through the shaft sleeve.

[0010] Furthermore, a side sliding seat is provided on one side of the fixing seat, and an oblique sliding groove is provided on the side sliding seat.

[0011] Furthermore, the lower end of the rotating seat is threadedly connected to the fixed seat, and a floating spring seat 2 is provided between the rotating seat and the sleeve. An adjustment handle and a guide wheel assembly are also provided on the rotating seat. The guide wheel assembly is slidably connected to the oblique slide groove, and one end of the adjustment handle passes through the door frame.

[0012] Furthermore, the shock-absorbing damper includes a shock-absorbing pad and a positioning sleeve, the positioning sleeve is movably connected to the door frame, and the shock-absorbing pad is made of a honeycomb liquid crystal elastomer material.

[0013] Furthermore, the shock-absorbing lock includes a shock-absorbing pad and a spring pin, the shock-absorbing pad is fixedly connected to the door leaf, the end of the spring pin is embedded in the door leaf, and the spring pin is matched and connected with the positioning sleeve.

[0014] Furthermore, the lock bolt includes a plurality of lock tongues, one side of the plurality of lock tongues are connected by a positioning plate, one side of the positioning plate is provided with a cam, a positioning shaft and a sleeve are provided at the front end of the cam, and a linkage handle is connected to the front end of the sleeve.

[0015] Furthermore, an inspection door is provided at the front end of the door frame close to the adjustment seat assembly, and the door frame and the door leaf are both made of fireproof and heat-insulating materials and are coated with fire-retardant paint.

[0016] 3. Beneficial effects: Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention is reasonably designed and utilizes an adjustable connection structure. When the door leaf and the door frame cannot be closed, they are adjusted until they match, thereby achieving complete closure of the door leaf and the door frame. A bidirectional buffer structure is installed on the door frame and the door leaf to generate a buffering force when closing, thereby avoiding direct impact and vibration. Through the combined structure of shock-absorbing damping and shock-absorbing lock buckle, the buffer force generated in both directions offsets the vibration caused by direct collision when the door leaf and door frame are closed; The combined structure of the rotating connector and the adjusting seat assembly replaces the hinge structure used in traditional civil air defense doors, thereby preventing the door leaf from falling and affecting closing when the hinge becomes loose or deformed, and causing damage to the door frame and door leaf after impact, thereby effectively improving the service life of the civil air defense door.

[0017] It should be noted that the structures not introduced in the present invention are the same as the prior art or can be implemented by using the prior art, and are not described in detail here because they do not involve the design points and improvement directions of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention from another angle; Figure 3 It is a schematic diagram of the local structure of the present invention; Figure 4 is a cross-sectional view of a door frame of the present invention; Figure 5 It is a cross-sectional view of the shock absorbing and damping device of the present invention; Figure 6 It is a cross-sectional view of the shock-absorbing lock buckle of the present invention; Figure 7 It is a schematic diagram of the lock bolt structure of the present invention.

[0019] Reference numerals: 1. Door frame; 101. Floating groove; 102. Floating spring seat 1; 103. Inspection door; 2. Door leaf; 201. Connecting plate; 202. Sleeve; 3. Rotating connector; 301. Bushing; 302. Rotating shaft; 4. Adjusting seat assembly; 401. Fixed seat; 402. Rotating seat; 403. Side sliding seat; 4031. Oblique sliding groove; 404. Floating spring seat 2; 405. Adjusting handle; 406. Guide wheel assembly; 5. Shock absorbing damping; 501. Shock absorbing pad; 502. Positioning sleeve; 6. Shock absorbing lock buckle; 601. Shockproof pad; 602. Spring pin; 7. Lock bolt; 701. Lock tongue; 702. Positioning plate; 703. Cam; 704. Positioning shaft; 705. Sleeve; 706. Linkage handle; 8. Fixed handle;. DETAILED DESCRIPTION

[0020] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0024] Refer to the attached Figure 1-7 A seismic and heat-insulating civil air defense door comprises a door frame 1 and a door leaf 2, a rotating connector 3 is provided between the door leaf 2 and the door frame 1, an adjusting seat assembly 4 is provided at the lower end of the rotating connector 3, a plurality of shock-absorbing dampers 5 are embedded on the door frame 1, a lock bolt 7 is provided on the side of the door frame 1 close to the shock-absorbing damper 5, a plurality of shock-absorbing lock buckles 6 corresponding to the shock-absorbing dampers 5 are provided on the door leaf 2, and a fixed handle 8 corresponding to the lock bolt 7 is provided on the door leaf 2.

[0025] Refer to the attached Figure 1-7 A floating groove 101 is provided at the upper end of the door frame 1 near the rotating connection member 3, and a floating spring seat 102 is provided in the floating groove 101. The rotating connection member 3 and the adjusting seat assembly 4 are both arranged on one side of the door frame 1 and placed in the door frame 1. The rotating connection member 3 includes a sleeve 301 and a rotating shaft 302. The upper end of the rotating shaft 302 is embedded in the floating groove 101 and is in contact with the floating spring seat 102. The sleeve 301 is rotatably connected to the rotating shaft 302, and the lower end of the sleeve 301 is fixedly connected to the rotating seat 402. The rotating shaft 302 can be adjusted up and down by the adjusting seat assembly 4. The upper and lower ends of the rotating shaft 302 are maintained stable by the floating spring seat 102 and the floating spring seat 2 404. The vibration is offset by the floating spring seat 102 and the floating spring seat 2 404, and the shockproof performance is good.

[0026] Refer to the attached Figure 1-7A plurality of connecting plates 201 are provided on one side of the door leaf 2, one end of the plurality of connecting plates 201 is sleeved on the rotating shaft 302 through a sleeve 202 and is fixedly connected to the rotating shaft 302, the door leaf 2 is connected to the door frame 1 through the rotating shaft 302 to realize the opening and closing action, a sleeve 202 is fixedly provided on the rotating shaft 302, one end of the sleeve 202 has a connecting plate 201 structure integrally formed therewith, and the connecting plate 201 is fixedly connected to the door leaf 2 to form a whole with the sleeve 202.

[0027] Refer to the attached Figure 1-7 , the adjusting seat assembly 4 is arranged at the lower end of the rotating connecting member 3, and the up and down floating adjustment of the rotating shaft 302 is realized through the adjusting seat assembly 4. The adjusting seat assembly 4 includes a fixed seat 401 and a rotating seat 402. The sleeve 301 is embedded in the rotating seat 402, and the rotating shaft 302 is rotatably connected with the rotating seat 402 through the sleeve 301. A side sliding seat 403 is provided on one side of the fixed seat 401, and an oblique sliding groove 4031 is provided on the side sliding seat 403. The oblique sliding groove 4031 is arranged on the side of the fixed seat 401 away from the door leaf 2. The oblique sliding groove 4031 is semicircular and has a certain upward tilt at the bottom. The lower end of the rotating seat 402 is threadedly connected to the fixed seat 401, and the rotating seat 402 is connected to the fixed seat 401. A floating spring seat 404 is provided between the shaft sleeves 301, and an adjusting handle 405 and a guide wheel assembly 406 are also provided on the rotating seat 402. The guide wheel assembly 406 is slidably connected to the oblique slide groove 4031. One end of the adjusting handle 405 passes through the door frame 1. The guide wheel assembly 406 includes an extension block connected to the rotating seat 402, one end of the extension block is placed above the oblique slide groove 4031, and a guide wheel is provided at the lower end of the extension block. The guide wheel is placed in the oblique slide groove 4031. By rotating the adjusting handle 405 on the rotating seat 402, the rotating seat 402 is driven to rotate along the fixed seat 401. During the rotation, the rotating seat 402 drives the guide wheel assembly 406 to slide along the oblique slide groove 4031.

[0028] Refer to the attached Figure 1-7The number of the shock-absorbing damper 5 and the shock-absorbing lock 6 is at least three, all of which are arranged vertically and have a matching structure. The shock-absorbing damper 5 includes a shock-absorbing pad 501 and a positioning sleeve 502. The positioning sleeve 502 is movably connected to the door frame 1. The shock-absorbing pad 501 is made of a honeycomb liquid crystal elastomer material. The shock-absorbing pad 501 is embedded in the door frame 1 and is used to buffer the door frame 1 when it is subjected to force. A slot matching the spring pin 602 is provided on the positioning sleeve 502. Both sides of the positioning sleeve 502 have bosses embedded in the door frame 1 and slide with the door frame 1. The positioning sleeve 502 and the shock-absorbing pad 501 are connected. There is a certain moving gap between the two ends. The shock-absorbing lock buckle 6 includes a shock-absorbing pad 601 and a spring pin 602. The shock-absorbing pad 601 is fixedly connected to the door leaf 2 and is used to buffer the door leaf 2 when it is subjected to force. The end of the spring pin 602 is embedded in the door leaf 2. The spring pin 602 matches the positioning sleeve 502 and is connected. The spring pin 602 protrudes from the door leaf 2 and is set. When the door leaf 2 and the door frame 1 are in a closed state, one end of the spring pin 602 is inserted into the positioning sleeve 502, and the two-way buffering force offsets each other, thereby offsetting the vibration generated by the door leaf 2 and the door frame 1 when it is closed, thereby playing a role of shock absorption and earthquake resistance.

[0029] Refer to the attached Figure 1-7 The lock bolt 7 includes a plurality of lock tongues 701, one side of the plurality of lock tongues 701 is connected by a positioning plate 702, a cam 703 is provided on one side of the positioning plate 702, a positioning shaft 704 and a sleeve 705 are provided at the front end of the cam 703, and the sleeve 705 is movably connected to the positioning shaft 704, and a linkage handle 706 is connected to the front end of the sleeve 705, and the linkage handle 706 is pushed inward, and the sleeve 705 is sleeved into the positioning shaft 704. After the linkage handle 706 is rotated counterclockwise, the cam 703 rotates toward one side of the positioning plate 702, and the positioning plate 702 together with the plurality of lock tongues 701 extend out of the door frame 1 and are inserted into the reserved holes opened on the side of the door leaf 2. At the same time, the linkage handle 706 is rotated and embedded in the fixed handle 8 at the front end of the door leaf 2, and finally the linkage handle 706 is pulled out together with the sleeve 705 to the front end to realize the locking connection between the door leaf 2 and the door frame 1.

[0030] Refer to the attached Figure 1-7 A maintenance door 103 is provided at the front end of the door frame 1 near the adjustment seat assembly 4. An adjustment slot is provided on the maintenance door 103, and an adjustment handle 405 extends out of the adjustment slot. When the door leaf 2 needs to be adjusted significantly, the maintenance door 103 can be operated. The door frame 1 and the door leaf 2 are both made of fireproof and heat-insulating materials and are coated with fire-retardant paint on the surface. The fire-retardant paint is flame retardant, which can reduce the thermal conductivity of the door frame 1 and the door leaf 2, delay the flame temperature, and play a heat-insulating role.

[0031] In this embodiment, when the door leaf 2 and the door frame 1 are closed, the shock absorbing lock 6 on the door leaf 2 is connected with the shock absorbing damper 5 on the door frame 1, and the vibration caused by the direct collision when the door leaf 2 and the door frame 1 are closed is offset by the buffer force generated in both directions. When the civil air defense door is impacted by external force, the design of the rotating connecting member 3 floating up and down is used to prevent the rotating shaft 302 from being deformed due to vibration, and the rotating shaft 302 is embedded in the inner side of the door frame 1 to protect the rotating shaft 302 from being impacted by external force, and the up and down floating adjustment function is realized by the adjusting seat assembly 4, and there is an up and down adjustable space. To avoid direct collision between the upper and lower ends of the rotating shaft 302 and the door frame 1, the rotating seat 402 on the adjustment seat assembly 4 is rotated along the oblique sliding groove 4031 on the side sliding seat 403 to fine-tune the overall height of the rotating shaft 302 to prevent the door leaf 2 from loosening and falling due to the rotating connecting piece 3 after long-term use, thereby affecting the closure of the door leaf 2 and the door frame 1 and avoiding collision when closing. Finally, the lock bolt 7 is rotated to extend the lock tongue 701 out of the door frame 1 and insert it into the door leaf 2. After the linkage handle 706 is rotated, it is embedded in the fixed handle 8 at the front end of the door leaf 2 to achieve double locking.

[0032] To sum up, through the combined structure of shock-absorbing damping and shock-absorbing lock, the buffering force generated in both directions offsets the vibration caused by direct collision when the door leaf and the door frame are closed. The combined structure of the rotating connector and the adjustment seat assembly replaces the hinge structure used in traditional civil air defense doors to avoid the door leaf falling and affecting closing when the hinge becomes loose or deformed, and damage to the door frame and door leaf after collision, thereby effectively improving the service life of the civil air defense door.

[0033] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. An earthquake-resistant and heat-insulating civil air defense door, comprising a door frame (1) and a door leaf (2), characterized in that: A rotating connection member (3) is provided between the door leaf (2) and the door frame (1); an adjusting seat assembly (4) is provided at the lower end of the rotating connection member (3); a plurality of shock absorbing dampers (5) are embedded in the door frame (1); a locking bolt (7) is provided on a side of the door frame (1) close to the shock absorbing dampers (5); a plurality of shock absorbing lock buckles (6) corresponding to the shock absorbing dampers (5) are provided on the door leaf (2); and a fixed handle (8) corresponding to the locking bolt (7) is provided on the door leaf (2).

2. The earthquake-resistant and heat-insulating civil air defense door according to claim 1, characterized in that: A floating groove (101) is provided at the upper end of the door frame (1) near the rotating connection member (3), and a floating spring seat (102) is provided in the floating groove (101). The rotating connection member (3) comprises a shaft sleeve (301) and a rotating shaft (302), and the upper end of the rotating shaft (302) is embedded in the floating groove (101) and is in contact with the floating spring seat (102).

3. The earthquake-resistant and heat-insulating civil air defense door according to claim 2, characterized in that: A plurality of connecting plates (201) are provided on one side of the door leaf (2); one end of the plurality of connecting plates (201) is sleeved on the rotating shaft (302) through a sleeve (202) and is fixedly connected to the rotating shaft (302).

4. The earthquake-resistant and heat-insulating civil air defense door according to claim 3 is characterized by: The adjustment seat assembly (4) comprises a fixed seat (401) and a rotating seat (402), the shaft sleeve (301) is embedded in the rotating seat (402), and the rotating shaft (302) is rotatably connected to the rotating seat (402) via the shaft sleeve (301).

5. The earthquake-resistant and heat-insulating civil air defense door according to claim 4, characterized in that: A side sliding seat (403) is provided on one side of the fixed seat (401), and an oblique sliding groove (4031) is provided on the side sliding seat (403).

6. The earthquake-resistant and heat-insulating civil air defense door according to claim 5, characterized in that: The lower end of the rotating seat (402) is threadedly connected to the fixed seat (401), and a floating spring seat 2 (404) is provided between the rotating seat (402) and the shaft sleeve (301). The rotating seat (402) is also provided with an adjustment handle (405) and a guide wheel assembly (406), and the guide wheel assembly (406) is slidably connected to the oblique sliding groove (4031), and one end of the adjustment handle (405) is arranged to pass through the door frame (1).

7. The earthquake-resistant and heat-insulating civil air defense door according to claim 1, characterized in that: The shock absorbing damper (5) comprises a shock absorbing pad (501) and a positioning sleeve (502), the positioning sleeve (502) being movably connected to the door frame (1), and the shock absorbing pad (501) is made of a honeycomb liquid crystal elastomer material.

8. The earthquake-resistant and heat-insulating civil air defense door according to claim 1, characterized in that: The shock-absorbing lock buckle (6) comprises a shock-absorbing pad (601) and a spring pin (602), wherein the shock-absorbing pad (601) is fixedly connected to the door leaf (2), the end of the spring pin (602) is embedded in the door leaf (2), and the spring pin (602) is matched and connected to the positioning sleeve (502).

9. The earthquake-resistant and heat-insulating civil air defense door according to claim 1, characterized in that: The lock bolt (7) comprises a plurality of lock tongues (701), one side of the plurality of lock tongues (701) being connected via a positioning plate (702), one side of the positioning plate (702) being provided with a cam (703), a front end of the cam (703) being provided with a positioning shaft (704) and a sleeve (705), and a front end of the sleeve (705) being connected to a linkage handle (706).

10. The earthquake-resistant and heat-insulating civil air defense door according to claim 1, characterized in that: The door frame (1) is provided with an inspection door (103) at the front end close to the adjustment seat assembly (4); the door frame (1) and the door leaf (2) are both made of fireproof and heat-insulating materials and are coated with fireproof paint.

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