Manual fine adjustment device for civil air defense door installation and installation method

Abstract

The invention provides a manual fine adjustment device for civil air defense door installation and an installation method, and is used for the technical field of building installation, the device comprises a base, a sliding mechanism, a bearing piece and a limiting mechanism, the base comprises a multi-layer detachable frame, and universal wheels are arranged at the bottom of the detachable frame; the sliding mechanism is arranged on the top surface of the base; comprising a center sliding rail and a sliding piece. The bearing piece is arranged at one end of the sliding piece and used for supporting the civil air defense door. The limiting mechanism is arranged at the other end of the sliding piece and comprises a limiting pin, a self-locking inserting piece and an elastic piece. The sliding part is manually moved to slide along the central sliding rail, so that the height of the door frame of the civil defense door is finely adjusted, the operation difficulty and the labor intensity are reduced, and the adjusting precision and the adjusting efficiency are improved; by arranging the limiting mechanism, the adjusting precision is easier to control, and the adjusting efficiency is improved; the device is simple in overall structure, easy to machine and manufacture, convenient to operate and good in practicability.

Description

Technical Field

[0001] The present invention belongs to the technical field of building installation, and particularly relates to a manual fine-tuning device and an installation method for installing a civil air defense door. Background Art

[0002] Civil air defense doors have functions such as waterproofing, explosion protection, and anti-air pollution, and can resist external impacts and pollution to a certain extent, providing a safe shelter for personnel. They are also an important safety protection measure in the daily use of buildings. Therefore, the installation quality of civil air defense doors is particularly important. In single-built civil air defense projects, steel structure movable threshold double-leaf protective airtight doors are usually used as civil air defense doors. When installing them, they need to be fixed and poured in one go with the foundation threshold. In the prior art, lifting and hoisting equipment such as tower cranes is mostly used to hoist the civil air defense door into place, and then manual fine-tuning is carried out using tools such as crowbars by manpower to ensure its accurate position. Although this method can ensure the installation accuracy of the civil air defense door, there are still the following problems: First, due to the large self-weight of the civil air defense door, when using lifting and hoisting equipment to hoist the civil air defense door to the predetermined position, repeated adjustments are required. However, the operation of multiple hoisting and moving is difficult, the installation efficiency is low, a large amount of construction site and the use time of lifting and hoisting equipment are occupied, which has an adverse impact on the construction progress and cost; at the same time, a large amount of manual labor is required during the fine-tuning process, increasing the safety risk of construction, and also making it difficult to control the construction quality, affecting the safety of the overall building. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a manual fine-tuning device for installing a civil air defense door and its construction method, which reduces the operation difficulty and labor intensity of installing a civil air defense door, and improves the adjustment accuracy and adjustment efficiency.

[0004] The technical solution adopted by the present invention is: A manual fine-tuning device for installing a civil air defense door, comprising:

[0005] A base, the base includes multiple layers of detachable frames, and universal wheels are provided at the bottom of the detachable frames;

[0006] A sliding mechanism, arranged on the top surface of the base; the sliding mechanism includes a central slide rail and a sliding member slidably connected to the central slide rail;

[0007] A supporting member, arranged at one end of the sliding member, for supporting the civil air defense door;

[0008] A limiting mechanism, arranged at the other end of the sliding member, for restricting the movement of the sliding member.

[0009] Further, the cross-section of the central slide rail is square, and the sliding member is sleeved on the central slide rail.

[0010] Further, sliding plates are provided on opposite sides of the sliding member. Both ends of each sliding plate protrude outward from the sliding member, and at least one end of each sliding plate is provided with a sliding handle.

[0011] Further, the supporting member is perpendicular to the side wall of the sliding member, located above the sliding plate, and is disposed opposite to the sliding handle.

[0012] Further, the central slide rail is provided with a plurality of adjustment holes; the sliding member is provided with a through hole, and the limiting mechanism includes a limiting pin that cooperates with the adjustment holes and the through hole.

[0013] Further, the limiting mechanism further includes a self-locking plug and an elastic member; the self-locking plug is provided with a plug rod that cooperates with the adjustment holes and the through hole; one end of the self-locking plug is hinged to one end of the sliding plate close to the sliding handle, and the other end is connected to the elastic member; the other end of the elastic member is connected to one end of the sliding plate close to the supporting member.

[0014] Further, the self-locking plug includes a pin shaft, and both ends of the pin shaft are connected to the sliding plate and are located between the sliding frame and the sliding handle.

[0015] Further, the self-locking plug further includes a longitudinal connecting rod and a transverse connecting rod, and the transverse connecting rod is parallel to the pin shaft; the longitudinal connecting rod is disposed between the pin shaft and the transverse connecting rod; the elastic member is respectively connected to both ends of the transverse connecting rod.

[0016] Further, the limiting pin is disposed on the same side as the self-locking plug and is located above the self-locking plug.

[0017] An installation method for a civil air defense door uses the manual fine-tuning device for installing a civil air defense door as described above, and includes the following steps:

[0018] Lift and place the fire door frame in place;

[0019] Place the manual fine-tuning device for installing a civil air defense door at the bottom of the fire door frame;

[0020] Move the sliding handle to adjust the height of the fire door frame;

[0021] Adjust the position and angle of the fire door frame through the universal wheels;

[0022] Install support steel bars to fix the fire door frame;

[0023] Remove the manual fine-tuning device for installing a civil air defense door;

[0024] Construct the wall around the fire door frame;

[0025] Remove the supporting steel bars.

[0026] The advantages and positive effects of the present invention are as follows:

[0027] (1) By manually moving the sliding member along the central slide rail, the height of the civil air defense door frame can be finely adjusted. Compared with using tools such as crowbars, the operation difficulty and labor intensity are reduced, and the adjustment accuracy and efficiency are improved.

[0028] (2) By setting the limiting mechanism, the upper part of the sliding member is fixed and limited by the limiting pin, and the sliding member is automatically limited during the adjustment process by the self-locking plug-in. It is easier to control the adjustment accuracy, and it is not easy to occur the situation of excessive adjustment and repeated adjustment, which improves the adjustment efficiency. At the same time, it is also beneficial to improve the safety of the operation process.

[0029] (3) The overall structure of the device is simple, easy to process and manufacture, and easy to operate. Multiple devices can cooperate to complete the fine adjustment of components with relatively large self-weights, and it can be widely applied to working conditions such as steel formwork, large combined formwork, and steel component installation, with good practicability. Description of the Drawings

[0030] Figure 1 is a schematic structural view of a specific embodiment of the present invention.

[0031] Figure 2 is a side view of a specific embodiment of the present invention.

[0032] In the figure:

[0033] 1. Base; 11. Universal wheel; 2. Sliding mechanism; 21. Central slide rail; 211. Adjustment hole; 22. Sliding member; 221. Sliding plate; 222. Sliding handle; 223. Through hole; 3. Supporting member; 4. Limiting mechanism; 41. Limiting pin; 42. Self-locking plug-in; 421. Pin shaft; 422. Longitudinal connecting rod; 423. Transverse connecting rod; 424. Insert rod; 43. Elastic member. Detailed Embodiment

[0034] The following describes the embodiments of the present invention with reference to the drawings.

[0035] As Figure 1 - Figure 2 shown, the present invention provides a manual fine adjustment device for civil air defense door installation, including a base 1, a sliding mechanism 2, a supporting member 3, and a limiting mechanism 4. The following will describe each part in detail.

[0036] As Figure 1 - Figure 2As shown in the figure, in this embodiment, the base 1 includes multiple layers of detachable frames. The bottom of the detachable frame is provided with universal wheels 11, where the universal wheels 11 are used to drive the movement of the base 1 and are accompanied by a locking device, and can be fixed to the ground as needed; the detachable frame is provided with several layers in the height direction, and the height of the base 1 can be reduced by removing at least one layer;

[0037] The sliding mechanism 2 is arranged on the top surface of the base 1; the sliding mechanism 2 includes a central slide rail 21 and a sliding member 22 slidably connected to the central slide rail 21; the central slide rail 21 in this embodiment is arranged vertically, and the sliding member 22 can move up and down along the central slide rail 21;

[0038] The supporting member 3 is arranged at one end of the sliding member 22 and is used to support the civil air defense door frame;

[0039] The limiting mechanism 4 is arranged at the other end of the sliding member 22 and is used to limit the movement of the sliding member 22.

[0040] Normally, the civil air defense door frame is moved to the intended installation position by hoisting. Due to the limitations of the accuracy of hoisting operations, at this time, there are certain deviations in the position, height, and angle of the civil air defense door frame from the design requirements. Therefore, fine-tuning is required; when using this manual fine-tuning device, the specific process is as follows: after the civil air defense door frame is hoisted in place, the supporting member 3 is placed at the bottom of the civil air defense door frame, and the height of the civil air defense door frame is adjusted by moving the sliding member 22 to meet the preset height requirements for installation; the angle and position of the civil air defense door frame are adjusted by driving the civil air defense door frame to move through the universal wheels 11, so that it can be accurately moved to the preset installation position and installation angle; when the bottom space of the civil air defense door frame is less than the minimum height that the supporting member 3 can reach, the height of the overall device is reduced by removing some detachable frames of the base 1 to facilitate fine-tuning of the height of the civil air defense door frame.

[0041] As Figure 1 shown, the cross-section of the central slide rail 21 in this embodiment is square, and the sliding member 22 is sleeved on the central slide rail 21; preferably, the cross-section of the sliding member 22 is also square, and its shape is slightly larger than that of the central slide rail 21. This structural design can effectively reduce the friction between the sliding member 22 and the central slide rail 21, so that the sliding member 22 can move up and down on the central slide rail 21 more easily; through the cooperation of the central slide rail 21 and the sliding member 22, the stability of the sliding member 22 during the sliding process is improved, ensuring that the sliding member 22 will not deviate during the movement; at the same time, the cross-section of the central slide rail 21 is a square structure. Compared with the traditional circular or irregular cross-section design, this structure is more stable and can provide stronger support ability, thereby reducing the deformation risk of the central slide rail 21 and the sliding member 22 under the load of the fire door frame and improving the safety of the device during use.

[0042] In the embodiment of the present application, the sliding member 22 is manually driven by hand. For the convenience of operation, sliding plates 221 are provided on the opposite sides of the sliding member 22. The two ends of the sliding plates 221 protrude outward from the sliding member 22 respectively, and at least one end of the sliding plate 221 is provided with a sliding handle 222. By providing the sliding handle 222, the height of the sliding member can be preliminarily adjusted conveniently before the fire door frame is installed. By providing the sliding plates 221, the operation of controlling the lifting of the sliding member 22 is more convenient and comfortable when the fire door frame is placed on the supporting member 3. The operator can respectively hold the two ends of the sliding plate 221 with hands and push the sliding member 22 to move slowly along the vertical direction to the set height. The whole process is simple in operation, high in efficiency, not prone to operation errors, and more suitable for the scenario where the height needs to be manually and precisely controlled. In the embodiment of the present application, a plurality of connecting rods are further provided between the two sliding plates 221, and the sliding handle 222 is connected to the outermost connecting rod to improve the integrity and stability of the structure.

[0043] In the embodiment of the present application, the supporting member 3 is vertically arranged on the side wall of the sliding member 22, above the sliding plate 221, and is arranged opposite to the sliding handle 222, so as to facilitate the operator to manually drive the sliding member 22 to move. Preferably, the supporting member 3 is set at a set distance from the top end of the sliding member 22, so that the supporting member 3 and the side wall of the sliding member 22 form an L-shaped structure, jointly forming the support and limit for the civil air defense door frame. In another preferred embodiment, the supporting member 3 is arranged at the top end of the sliding member 22. When the sliding member 22 moves to the highest position within the adjustment range along the central slide rail 21, the supporting member 3 is at a set distance from the top end of the central slide rail 21, so that the supporting member 3 and the side wall of the central slide rail 21 form an L-shaped structure, jointly forming the support and limit for the civil air defense door frame to prevent the civil air defense door frame from being skewed and affecting the installation accuracy of the civil air defense door frame.

[0044] In the embodiment of the present application, a plurality of adjustment holes 211 are provided on the central slide rail 21, and a through hole 223 is provided on the sliding member 22. The limiting mechanism 4 includes a limiting pin 41 that cooperates with the adjustment hole 211 and the through hole 223. Specifically, the adjustment hole 211 and the through hole 223 are respectively provided on the corresponding side walls of the central slide rail 21 and the sliding member 22. The adjustment holes 211 are linearly arranged in the vertical direction. An installation seat for fixing the limiting pin 41 is provided on the side wall of the sliding member 22. A threaded hole is provided at a position of the installation seat opposite to the through hole 223. The limiting pin 41 is threadedly connected to the threaded hole. By screwing the limiting pin 41, the limiting pin 41 can sequentially pass through the through hole 223 and the adjustment hole 211 to fix the sliding member 22 to the central slide rail 21. In the present application, since the fire door frame is hoisted and positioned based on a set height, the deviation between the actual height of the fire door frame and the set height is very small. The distance between the adjustment holes 211 in the present application is set according to the deviation value under normal circumstances, so that after adjustment by the manual fine-tuning device in the present application, the difference between the actual height of the fire door frame and the set height meets the error requirements.

[0045] In the embodiment of the present application, the limiting mechanism 4 further includes a self-locking plug-in 42 and an elastic member 43. The self-locking plug-in 42 is provided with a plug rod 424 that cooperates with the adjustment hole 211 and the through hole 223. One end of the self-locking plug-in 42 is hinged to one end of the sliding plate 221 close to the sliding handle 222, and the other end is connected to the elastic member 43. The other end of the elastic member 43 is connected to one end of the sliding plate 221 close to the supporting member 3. The working principle of the present application is as follows: The elastic member 43 in the present application is in a stretched state, and one end of the self-locking plug-in 42 connected to the elastic member 43 always fits against the sliding member 22 under the action of the pulling force. In the initial state, the limiting pin 41 and the plug rod 424 are respectively inserted into different adjustment holes 211. When it is necessary to adjust the height of the sliding member 22, the limiting pin 41 is screwed to move away from the adjustment hole 211, and then the plug rod 424 is pulled out in the direction away from the sliding member 22, so that the self-locking plug-in 42 can slide up or down along the central slide rail 21. When the through hole 223 of the sliding member 22 and another adjustment hole 211 on the central slide rail 21 are aligned again, the plug rod 424 automatically inserts into the adjustment hole 211 under the action of the pulling force to prevent the sliding member 22 from continuing to slide. Usually, the adjustment amount required for height adjustment is small, and the sliding member 22 only needs to move a distance of one adjustment hole 211 to meet the error requirements between the actual height of the fire door frame and the set height. When the required adjusted height value is large, by alternately pulling out the plug rod 424, moving the sliding member 22, and the plug rod 424 automatically inserting into the adjustment hole 211 for limiting, the adjustment is carried out in multiple segments, which is easier to control the adjustment accuracy, less likely to occur over-adjustment and repeated adjustment, improves the adjustment efficiency, and is also beneficial to improving the safety of the operation process and the coordination of multiple manual fine-tuning devices working together.

[0046] In the embodiment of the present application, the self-locking plug 42 includes a pin shaft 421. Both ends of the pin shaft 421 are connected to the sliding plate 221 and are located between the sliding member 22 and the sliding handle 222. The self-locking plug 42 can rotate around the pin shaft 421, so that the insertion rod 424 can be inserted into or withdrawn from the adjustment hole 211.

[0047] Further, the self-locking plug 42 further includes a longitudinal connecting rod 422 and a transverse connecting rod 423. The transverse connecting rod 423 is arranged parallel to the pin shaft 421, and the longitudinal connecting rod 422 is arranged between the pin shaft 421 and the transverse connecting rod 423. Elastic members 43 are respectively connected to both ends of the transverse connecting rod 423. Specifically, it is located between the sliding member 22 and the sliding handle 222. Specifically, one end of the longitudinal connecting rod 422 is vertically connected to the middle of the pin shaft 421, and the other end is vertically connected to the middle of the transverse connecting rod 423. The length of the transverse connecting rod 423 matches the outer spacing between the two sliding plates 221. Both ends of the transverse connecting rod 423 are respectively connected to an elastic member 43, and the other end of the elastic member 43 is connected to the outside of the sliding plate 221. The insertion rod 424 can be arranged on the longitudinal connecting rod 422 or in the middle of the transverse connecting rod 423, and the through hole 223 is arranged at the height position where the sliding member 22 and the insertion rod 424 are in position cooperation.

[0048] In the application, the sliding member 22 is provided with at least two through holes 223, which respectively correspond to the positions of the limit pin 41 and the insertion rod 424. Preferably, the through holes 223 are located on the same side wall of the sliding member 22. The limit pin 41 is arranged on the same side as the self-locking plug 42 and above the self-locking plug 42, and limits the upper and lower parts of the sliding member 22 respectively, which can better realize the limiting function, improve the safety of the device during use, and is more convenient for the operator to manually operate.

[0049] In the embodiment of the present application, a method for installing a civil air defense door is also proposed. The manual fine-tuning device for installing a civil air defense door is used to fine-tune the civil air defense door frame, including the following steps:

[0050] S1. Hoist the fire door frame into place;

[0051] In a specific embodiment, the fire door frame adopts a steel structure live sill double-leaf airtight and blast-proof door frame. Before hoisting, the fire door frame is inspected according to the design drawings. After passing the inspection, upper and lower anchor hooks are welded on the fire door frame, and the fire door frame is hoisted to the intended installation position by a tower crane. Due to the limitation of the hoisting operation accuracy, there are slight deviations between the position and height of the hoisted fire door frame and the set position and height.

[0052] S2. Place the manual fine-tuning device for installing a civil air defense door at the bottom of the fire door frame;

[0053] When there is insufficient space at the bottom of the fire door frame, remove part of the structure of the base 1 of the manual fine-tuning device for the civil air defense door so that the manual fine-tuning device for the civil air defense door can enter the bottom of the fire door frame, enabling the supporting member 3 to form an effective support for the fire door frame. Subsequently, disconnect the connection between the tower crane and the fire door frame; according to the weight and shape of the fire door frame, multiple manual fine-tuning devices for the civil air defense door can be set at the bottom of the civil air defense door square to work together.

[0054] S3. Move the sliding handle 222 to adjust the height of the fire door square;

[0055] Specifically, first check the set elevation and actual elevation of the civil air defense door frame with a level, calculate the difference between the two, determine the direction and distance of height adjustment, and further determine the number of adjustment holes 211 that the sliding member 22 needs to move through; when performing height adjustment, first turn the limit pin 41 to disengage the limit pin 41 from the adjustment hole 211; then pull out the insertion rod 424 and manually move the sliding member 22 upward or downward until the sliding member 22 slides past the calculated number of adjustment holes 211, and then turn the limit pin 41 in the reverse direction to fix the sliding member 22 to the central slide rail 21.

[0056] S4. Adjust the position and angle of the fire door frame through the universal wheels 11;

[0057] After the height of the fire door square meets the set height requirements, use an infrared ray + steel ruler to check the installation position of the fire door square, and move the manual fine-tuning device for the civil air defense door through the universal wheels 11 until the two sides of the civil air defense door frame coincide with the infrared ray respectively, completing the adjustment of the installation position and angle of the civil air defense door.

[0058] S5. Install support steel bars to fix the fire door frame;

[0059] In a specific embodiment, use support cross bars as temporary fixing devices, weld the support cross bars on the front and back sides of the fire door frame. Preferably, the support cross bars form a 60-degree angle with the fire door frame bracket, and the other end of the support cross bars is welded and fixed to the support frame.

[0060] S6. Remove the manual fine-tuning device for the civil air defense door;

[0061] By turning the limit pin 41 and pulling out the insertion rod 424, move the sliding member 22 downward to separate the supporting member 3 from the civil air defense door frame, and then remove the manual fine-tuning device for the civil air defense door.

[0062] S7. Construct the wall around the fire door frame;

[0063] This includes tying the steel bars of the wall around the fire door frame, and after acceptance, installing and strengthening the formwork and pouring concrete.

[0064] S8. Remove the support steel bars.

[0065] Demolish the wall formwork. After the concrete strength reaches the design requirements, cut the support steel bars.

[0066] The manual fine-tuning device for installing a civil air defense door and its installation method provided by this application have the following beneficial effects:

[0067] (1) By manually moving the sliding member along the central slide rail, the height of the civil air defense door frame can be finely adjusted. Compared with using tools such as crowbars, the operation difficulty and labor intensity are reduced, and the adjustment accuracy and efficiency are improved.

[0068] (2) By setting a limiting mechanism, a limiting pin is used to fix and limit the upper part of the sliding member, and a self-locking plug-in is used to automatically limit the sliding member during the adjustment process. It is easier to control the adjustment accuracy, and it is not easy to over-adjust or repeatedly adjust, improving the adjustment efficiency. At the same time, it is also beneficial to improve the safety of the operation process.

[0069] (3) The overall structure of the device is simple, easy to process and manufacture, and convenient to operate. Multiple devices can work together to finely adjust components with a large self-weight, and it can be widely applied to working conditions such as steel formwork, combined large formwork, and steel component installation, with good practicability.

[0070] The above has described the embodiments of the present invention in detail, but the content described is only the preferred embodiments of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the present invention application should still fall within the scope covered by the patent of the present invention.

Claims

1. A manual fine-tuning device for installing a civil air defense door, characterized in that: include: A base, the base comprising a multi-layer detachable frame, the bottom of the detachable frame being provided with universal wheels; A sliding mechanism is arranged on the top surface of the base; the sliding mechanism comprises a central sliding rail and a sliding member slidably connected to the central sliding rail; A supporting member, disposed at one end of the sliding member, for supporting the civil air defense door; The limiting mechanism is arranged at the other end of the sliding member and is used for limiting the movement of the sliding member.

2. The manual fine-tuning device for installing a civil air defense door according to claim 1 is characterized in that: The cross section of the central slide rail is square, and the sliding member is sleeved on the central slide rail.

3. The manual fine-tuning device for installing a civil air defense door according to claim 1 or 2, characterized in that: Sliding plates are provided on opposite sides of the sliding member, both ends of the sliding plates protrude toward the outside of the sliding member respectively, and at least one end of the sliding plate is provided with a sliding handle.

4. The manual fine-tuning device for installing a civil air defense door according to claim 3 is characterized in that: The supporting member is perpendicular to the side wall of the sliding member, is located above the sliding plate, and is arranged opposite to the sliding handle.

5. The manual fine-tuning device for installing a civil air defense door according to claim 4 is characterized in that: The central slide rail is provided with a plurality of adjustment holes; the sliding member is provided with a through hole, and the limiting mechanism comprises a limiting pin matched with the adjustment hole and the through hole.

6. The manual fine-tuning device for installing a civil air defense door according to claim 5 is characterized in that: The limiting mechanism also includes a self-locking plug-in and an elastic member; the self-locking plug-in is provided with an insertion rod that cooperates with the adjustment hole and the through hole; one end of the self-locking plug-in is hinged to one end of the sliding plate close to the sliding handle, and the other end is connected to the elastic member; the other end of the elastic member is connected to one end of the sliding plate close to the supporting member.

7. The manual fine-tuning device for installing a civil air defense door according to claim 6 is characterized in that: The self-locking plug-in comprises a pin shaft, both ends of which are connected to the sliding plate and are located between the sliding frame and the sliding handle.

8. The manual fine-tuning device for installing a civil air defense door according to claim 7 is characterized in that: The self-locking plug-in further comprises a longitudinal connecting rod and a transverse connecting rod, wherein the transverse connecting rod is parallel to the pin shaft; the longitudinal connecting rod is arranged between the pin shaft and the transverse connecting rod; and the elastic member is respectively connected to both ends of the transverse connecting rod.

9. The manual fine-tuning device for installing a civil air defense door according to any one of claims 5 to 8, characterized in that: The limit pin is arranged on the same side as the self-locking plug-in and is located above the self-locking plug-in.

10. A method for installing a civil air defense door, characterized in that: The manual fine-tuning device for installing a civil air defense door according to any one of claims 1 to 9 comprises the following steps: Lift the fire door frame into place; The manual fine-adjustment device for installing the civil air defense door is placed at the bottom of the door frame of the fire door; Move the sliding handle to adjust the height of the fire door frame; Adjust the position and angle of the fire door frame by means of universal wheels; Install supporting steel bars to fix the fire door frame; Remove the manual fine-tuning device installed on the civil air defense door; Constructing the wall around the fire door frame; Remove the supporting steel bars.

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