Anti-loosening reinforced concrete protective door
By designing door frames, hinges, adjustment grooves and other components in reinforced concrete protective doors, the inclination problem caused by loosening of the hinges at the traditional protective doors is solved, and the stable rotation of the protective door and the use of the long-life upper guide body are achieved.
Patent Information
- Application Number
- CN202421413141.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-06-20
AI Technical Summary
Due to the lack of a good lubrication system in the hinge connection of traditional reinforced concrete protective doors, the movable shaft rubs and wears in the sleeve, causing the hinge or hinge connection to loosen, which makes the protective door tilt and cannot be used normally.
A protective door structure including a door frame, hinge, adjustment groove, clamping groove, limiting spring, clamping plate, mating groove, load-bearing plate, upper guide body and lower guide body are designed. With these components in conjunction, the protective door can rotate on the door frame when the hinge falls off and avoid tilting.
It effectively prevents the problem that the protective door cannot be used due to the falling of the hinge, avoids the protective door tilting during rotation, extends the service life of the upper guide body, and improves the stability of the protective door.
Smart Images
Figure CN222879573U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of protective doors, in particular to a reinforced concrete protective door capable of preventing loosening. Background Art
[0002] The reinforced concrete protective door is set at the outermost side of the entrance and exit. It has the two functions of blocking shock waves and isolating toxic agents. The protective door should be able to block shock waves and meet the corresponding resistance requirements.
[0003] At present, reinforced concrete protective doors generally adopt hinged or hinged connections. However, due to the heavy weight of reinforced concrete protective doors, frequent opening and closing, and the lack of a good lubrication system for traditional hinged metal components, the movable shaft rotates back and forth in the sleeve during use and is very easy to wear, eventually causing the hinge or hinge connection to loosen, causing the reinforced concrete protective door to tilt and cannot continue to be used normally. Utility Model Content
[0004] In order to solve the above technical problems, a reinforced concrete protective door that prevents loosening is provided. The technical solution solves the problem mentioned in the above background technology that the traditional hinge metal components do not have a good lubrication system, and the movable shaft rotates back and forth in the sleeve during use and is very easy to wear, which eventually leads to loosening of the hinge or hinge connection, causing the reinforced concrete protective door to tilt and cannot continue to be used normally.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A reinforced concrete protective door to prevent loosening, comprising a door frame, a hinge is installed on the inner side of the door frame, an adjusting groove is provided on the inner top of the door frame, a clamping groove is provided below the adjusting groove, the clamping groove is provided at the inner top of the door frame, a first limit spring is symmetrically provided inside the clamping groove, a clamping plate is slidably connected inside the clamping groove, a matching groove is symmetrically provided on the outer side of the clamping groove, the matching groove is provided on the inner side of the door frame, a bearing plate is slidably connected inside the adjusting groove, a limiting groove used in conjunction with the clamping plate is provided on the inner side of the bearing plate, and the bearing Large circular holes are symmetrically provided on the outer side of the carrier plate, an upper guide body is fixedly connected to the bottom end of the carrier plate, placement grooves are symmetrically provided on the inner top of the door frame, a second limit spring is arranged inside the placement groove, a clamping block is slidably connected inside the placement groove, a fixing column is fixedly connected to the inner side of the clamping block, the fixing column is slidably connected to the large circular hole, a lower guide body is fixedly connected at the corresponding position of the bottom end of the door frame and the upper guide body, the door frame is rotatably connected to a protective door through a hinge, and guide grooves are provided at the corresponding positions of the protective door and the upper guide body and the lower guide body.
[0007] Preferably, the adjustment slot is communicated with the card slot.
[0008] Preferably, one end of the first limit spring is fixedly connected to the inside of the card slot, and the other end of the first limit spring is fixedly connected to the inner side of the card plate.
[0009] Preferably, the matching groove is communicated with the card groove.
[0010] Preferably, the limiting groove is slidably connected to the clamping plate.
[0011] Preferably, one end of the second limit spring is fixedly connected to the inner side of the placement groove, and the other end of the second limit spring is fixedly connected to the outer side of the clamping block.
[0012] Preferably, the upper guide body and the lower guide body are both rotatably connected to the guide groove.
[0013] Compared with the prior art, the utility model provides a reinforced concrete protective door that prevents loosening, which has the following beneficial effects:
[0014] The utility model is provided with a bearing plate, a clamping plate, a limiting groove, an upper guide body and a lower guide body. The bearing plate, the clamping plate and the limiting groove are used in combination to make the upper guide body, the lower guide body and the protective door become a whole. When the hinge falls off, the protective door rotates on the door frame under the control of the upper guide body and the lower guide body, thereby preventing the protective door from being unusable due to the falling off of the hinge. In addition, the clamping plate and the limiting groove are used in combination to prevent the bearing plate from moving during the rotation of the protective door, causing the protective door to tilt. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the utility model;
[0016] Figure 2 It is a structural schematic diagram of the lower guide body in the utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the door frame in the utility model
[0018] Figure 4 for Figure 3 A schematic diagram of the local enlarged structure at point A in the middle;
[0019] Figure 5 This is a schematic diagram of the planar structure of the door frame in the utility model;
[0020] Figure 6 for Figure 5 A schematic diagram of the local enlarged structure at B in the middle;
[0021] Figure 7 It is a structural schematic diagram of the load-bearing plate in the utility model;
[0022] Figure 8This is a schematic diagram of the structure of the load-bearing plate used in the utility model;
[0023] Fig. 9 for Figure 8 Schematic diagram of the local enlarged structure at point C in the middle.
[0024] The numbers in the figure are:
[0025] 1. Door frame; 101. Hinge; 102. Adjustment slot; 103. Clamping slot; 104. First limit spring; 105. Clamping plate; 106. Matching slot; 2. Load-bearing plate; 201. Limiting slot; 202. Large round hole; 203. Upper guide body; 204. Placement slot; 205. Second limit spring; 206. Clamping block; 207. Fixed column; 208. Lower guide body; 3. Protective door; 301. Guide slot. DETAILED DESCRIPTION
[0026] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.
[0027] Reference Figure 1-9 As shown, a reinforced concrete protective door for preventing loosening comprises a door frame 1, a hinge 101 is installed on the inner side of the door frame 1, an adjusting groove 102 is provided on the inner top of the door frame 1, a clamping groove 103 is provided below the adjusting groove 102, the clamping groove 103 is provided at the inner top of the door frame 1, the adjusting groove 102 and the clamping groove 103 are communicated, a first limiting spring 104 is symmetrically provided inside the clamping groove 103, a clamping plate 105 is slidably connected inside the clamping groove 103, one end of the first limiting spring 104 is fixedly connected to the inside of the clamping groove 103, the other end of the first limiting spring 104 is fixedly connected to the inner side of the clamping plate 105, a matching groove 106 is symmetrically provided on the outer side of the clamping groove 103, the matching groove 106 is provided on the inner side of the door frame 1, the matching groove 106 is communicated with the clamping groove 103, and a bearing plate 2 is slidably connected inside the adjusting groove 102;
[0028] The inner side of the supporting plate 2 is provided with a limiting groove 201 used in conjunction with the card plate 105, and the limiting groove 201 is slidably connected to the card plate 105. The outer side of the supporting plate 2 is symmetrically provided with a large circular hole 202, and the bottom end of the supporting plate 2 is fixedly connected with an upper guide body 203. The inner top of the door frame 1 is symmetrically provided with a placement groove 204, and a second limiting spring 205 is arranged inside the placement groove 204. A card block 206 is slidably connected inside the placement groove 204. One end of the second limiting spring 205 is fixedly connected to the inner side of the placement groove 204. The second limiting spring 205 is fixedly connected to the inner side of the placement groove 204. The other end of the spring 205 is fixedly connected to the outer side of the block 206, and a fixing column 207 is fixedly connected to the inner side of the block 206. The fixing column 207 is slidably connected to the large circular hole 202. The bottom end of the door frame 1 is fixedly connected to a lower guide body 208 at a corresponding position of the upper guide body 203. The door frame 1 is rotatably connected to the protective door 3 through a hinge 101. Guide grooves 301 are provided at corresponding positions of the protective door 3 and the upper guide body 203 and the lower guide body 208. The upper guide body 203 and the lower guide body 208 are both rotatably connected to the guide grooves 301.
[0029] Example 1
[0030] When the hinge 101 falls off, the block 206 is pulled outward, the block 206 slides in the placement groove 204 and compresses the second limit spring 205. When the fixing column 207 is completely separated from the large circular hole 202, the carrier plate 2 is pressed downward, and the carrier plate 2 slides in the adjustment groove 102. When the top end of the carrier plate 2 and the bottom end of the block 206 are located at the same horizontal plane, the block 206 is released, and the block 206 is reset. The card plate 105 is pressed by the matching groove 106, and the card plate 105 squeezes the first Limiting spring 104, when the clamping plate 105 is flush with the inner side of the door frame 1, the lowest end of the clamping plate 105 is flush with the lowest end of the bearing plate 2, and the bearing plate 2 is continued to be pressed downward. When the upper guide body 203 completely enters the guide groove 301, the clamping plate 105 is released. Under the action of the first limiting spring 104, the clamping plate 105 is inserted into the limiting groove 201 to fix the bearing plate 2, so as to prevent the bearing plate 2 from moving during the rotation of the protective door 3, so as to cause the protective door 3 to tilt;
[0031] When the hinge 101 does not fall off, the block 206, under the action of the second limit spring 205, allows the fixing column 207 to be inserted into the large circular hole 202 to fix the bearing plate 2, thereby preventing the upper guide body 203 from being worn out due to long-term use and increasing the service life of the upper guide body 203.
[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A reinforced concrete protective door to prevent loosening, characterized in that: The invention comprises a door frame (1), wherein a hinge (101) is installed on the inner side of the door frame (1), an adjusting groove (102) is provided on the inner top of the door frame (1), a clamping groove (103) is provided below the adjusting groove (102), the clamping groove (103) is provided on the inner top of the door frame (1), a first limit spring (104) is symmetrically provided inside the clamping groove (103), a clamping plate (105) is slidably connected inside the clamping groove (103), a matching groove (106) is symmetrically provided on the outer side of the clamping groove (103), the matching groove (106) is provided on the inner side of the door frame (1), a bearing plate (2) is slidably connected inside the adjusting groove (102), a limiting groove (201) used in conjunction with the clamping plate (105) is provided on the inner side of the bearing plate (2), and a first limit spring (104) is symmetrically provided inside the clamping groove (103). The door frame (1) has a large circular hole (202), the bottom end of the bearing plate (2) is fixedly connected to an upper guide body (203), the inner top of the door frame (1) is symmetrically provided with a placement groove (204), a second limit spring (205) is arranged inside the placement groove (204), a clamping block (206) is slidably connected inside the placement groove (204), a fixing column (207) is fixedly connected to the inner side of the clamping block (206), the fixing column (207) is slidably connected to the large circular hole (202), a lower guide body (208) is fixedly connected to the bottom end of the door frame (1) at a corresponding position of the upper guide body (203), the door frame (1) is rotatably connected to a protective door (3) through a hinge (101), and guide grooves (301) are provided at corresponding positions of the protective door (3) and the upper guide body (203) and the lower guide body (208).
2. The reinforced concrete protective door for preventing loosening according to claim 1, characterized in that: The adjustment slot (102) and the clamping slot (103) are in communication.
3. The reinforced concrete protective door for preventing loosening according to claim 1, characterized in that: One end of the first limit spring (104) is fixedly connected to the inside of the clamping slot (103), and the other end of the first limit spring (104) is fixedly connected to the inner side of the clamping plate (105).
4. The reinforced concrete protective door for preventing loosening according to claim 1, characterized in that: The matching groove (106) is communicated with the clamping groove (103).
5. The reinforced concrete protective door for preventing loosening according to claim 1, characterized in that: The limiting groove (201) is slidably connected to the clamping plate (105).
6. The reinforced concrete protective door for preventing loosening according to claim 1, characterized in that: One end of the second limit spring (205) is fixedly connected to the inner side of the placement groove (204), and the other end of the second limit spring (205) is fixedly connected to the outer side of the clamping block (206).
7. The reinforced concrete protective door for preventing loosening according to claim 1, characterized in that: The upper guide body (203) and the lower guide body (208) are both rotatably connected to the guide groove (301).