Lateral adjustable support device for installation of subway civil air defense door frame

Abstract

The present invention discloses a laterally adjustable support device for installing a subway civil air defense door frame, which includes a base. An elastic member is installed on the upper end surface of the base through a double-acting cylinder; the elastic member includes two relatively arranged first elastic pieces and two relatively arranged second elastic pieces; the two first elastic pieces and the two second elastic pieces are fixedly connected in sequence at the head and tail to form an annular structure; the two piston parts of the double-acting cylinder are respectively fixedly connected to the two first elastic pieces; in the present invention, the double-acting cylinder drives the two first elastic pieces and the two second elastic pieces to act synchronously; after the two second elastic pieces abut against the civil air defense door frame, the double-acting cylinder continues to drive the first elastic pieces to act, and the second elastic pieces gradually wrap the civil air defense door frame, and the clamping blocks are clamped on the civil air defense door frame, so as to fix the civil air defense door frame; the installation and disassembly processes of this device are relatively convenient, improving the work efficiency of construction workers.

Description

Technical Field

[0001] The present invention belongs to the technical field of construction and relates to a laterally adjustable support device for installing the door frame of a subway civil air defense door. Background Technique

[0002] The civil air defense door is an important access protection device in civil air defense engineering facilities. Installing a civil air defense door requires a civil air defense door frame. The civil air defense door frame is generally welded by four angle steels, four bearing plates, four embedding edges and two hinge bases. Among them, the four angle steels are respectively used as long side angle steels and wide side angle steels to be welded into a rectangular door frame. The four bearing plates and the four embedding edges are welded on the outer frame surface of the rectangular door frame and enclose a closed loop. The two hinge bases are welded on the outer edge of the long side angle steel on one side of the rectangular door frame.

[0003] Before installing the civil air defense door frame, it is necessary to pre-bury steel weldable vertical frame supports on the floor and fix them with steel bars to facilitate firm installation. However, when the civil air defense door frame is fixed by welding with steel bars, it is very inconvenient to disassemble, and the position of the civil air defense door frame is difficult to adjust, seriously reducing the work efficiency of construction workers. To solve the above problems, the present invention proposes a laterally adjustable support device for installing the door frame of a subway civil air defense door. Summary of the Invention

[0004] To solve the problems existing in the background technique, the present invention proposes a laterally adjustable support device for installing the door frame of a subway civil air defense door.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows: A laterally adjustable support device for installing the door frame of a subway civil air defense door includes a base, and an elastic member is installed on the upper end surface of the base through a two-way cylinder; the elastic member includes two relatively arranged first elastic pieces and two relatively arranged second elastic pieces; the two first elastic pieces and the two second elastic pieces are fixedly connected in sequence at the head and tail and form an annular structure; the two piston parts of the two-way cylinder are respectively fixedly connected to the two first elastic pieces;

[0006] Leg members are installed at the four corners of the base; installation grooves are provided at the four corners of the base, and a driving mechanism for driving the corresponding leg member is arranged in each installation groove; the driving mechanism drives the leg member to move, so that the leg member changes from a storage state to a support state.

[0007] Further, the driving mechanism includes a driving component and a connecting component.

[0008] Further, a placement groove is provided along the side wall of the installation groove, and the placement groove is located on the diagonal line of the base; the driving component includes a driving cylinder, a C-shaped bracket, a gear and a rack;

[0009] The driving cylinder is located in the placement groove, the tail end of the driving cylinder is fixed on the inner wall of the placement groove, and the piston rod of the driving cylinder is fixed on the C-shaped bracket; the gear is rotatably installed on the C-shaped bracket through a rotating shaft; the rack is fixed on the bottom wall of the installation groove, and the rack is located on the diagonal of the base.

[0010] Furthermore, two mutually perpendicular slide groove groups are provided in the installation groove, and the two slide groove groups are respectively arranged parallel to the corresponding base side walls, and the angle between the extension lines of the two slide groove groups is away from the placement groove; each slide groove group includes two slide grooves, and the two slide grooves are correspondingly provided on the upper and lower inner walls of the installation groove.

[0011] Furthermore, the connection assembly includes two connection pieces; the two connection pieces respectively cooperate with the two slide groove groups.

[0012] Furthermore, each of the connecting members includes a spline telescopic rod, a slider, a shaft rod, and a wedge block;

[0013] The shaft rod passes through the slider and is rotatably connected to the slider; the two ends of the spline telescopic rod are respectively fixed on the shaft rod and the rotating shaft; the wedge block is fixed on the end of the shaft rod away from the spline telescopic rod; the upper and lower side walls of the slider are fixed with sliding strips that cooperate with the sliding groove.

[0014] Furthermore, the leg member comprises two supporting legs; the two supporting legs are hingedly arranged close to each other at the ends; and one end of the two supporting legs away from the hinged end is hingedly connected to the wedge block corresponding thereto.

[0015] Furthermore, the ends of the two supporting legs that are close to each other are both provided with arc-shaped portions.

[0016] Furthermore, the elastic coefficient of the first elastic sheet is greater than the elastic coefficient of the second elastic sheet.

[0017] Furthermore, clamping blocks are installed on the outer walls at both ends of the second elastic sheet.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the present invention, the two-way cylinder drives the two first elastic sheets and the two second elastic sheets to move synchronously; after the two second elastic sheets abut against the civil air defense door frame, the two-way cylinder continues to drive the first elastic sheets to move, the second elastic sheets gradually cover the civil air defense door frame, and the clamping blocks are clamped on the civil air defense door frame, thereby fixing the civil air defense door frame; the installation and disassembly processes of this device are relatively convenient, which improves the work efficiency of construction personnel.

[0020] 2. After the civil air defense door frame is limited and fixed by the elastic member in the present invention, the driving mechanism drives the leg member to act, so that the leg member changes from the storage state to the supporting state; and the driving mechanism can change the installation height of the civil air defense door frame by driving the leg member, making the civil air defense door frame more adaptable.

[0021] 3. After the device is used up, the leg member is stored again, saving space and being easy to store and carry. Brief Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of the present invention;

[0023] Figure 2 is a schematic structural diagram of the present invention in another direction;

[0024] Figure 3 is a cross-sectional view of the present invention;

[0025] Figure 4 is a schematic structural diagram of the driving mechanism in the present invention;

[0026] Figure 5 is a schematic diagram of the working state of the present invention.

[0027] In the figure: 1, base; 2, double-acting cylinder; 3, piston part; 4, first elastic sheet; 5, second elastic sheet; 6, clamping block; 7, installation groove; 8, placement groove; 9, driving cylinder; 10, C-shaped bracket; 11, spline telescopic rod; 12, rotating shaft; 13, gear; 14, rack; 15, shaft rod; 16, slider; 17, chute; 18, wedge block; 19, support leg; 20, arc part; 21, civil air defense door frame. Detailed Embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] As Figures 1 - 5 shown, the technical solution adopted by the present invention is as follows: a laterally adjustable support device for installing a subway civil air defense door frame, including a base 1, a double-acting cylinder 2 is fixed on the upper end surface of the base 1 by bolts, and elastic members are connected to the two piston parts 3 of the double-acting cylinder 2; the elastic members include two relatively arranged first elastic sheets 4 and two relatively arranged second elastic sheets 5, and the two first elastic sheets 4 and the two second elastic sheets 5 are fixedly connected end to end in sequence and form an annular structure; the two piston parts 3 of the double-acting cylinder 2 are respectively fixed on the inner walls of the two first elastic sheets 4 by bolts.

[0030] In this embodiment, the elastic coefficients of the two first elastic sheets 4 are greater than those of the two second elastic sheets 5; clamping blocks 6 are welded on the outer walls at both ends of the two second elastic sheets 5; when it is necessary to fix the civil air defense door frame 21, place this device in the middle of the civil air defense door frame 21, the double-acting cylinder 2 synchronously drives the two first elastic sheets 4 to contract, and the two second elastic sheets 5 gradually move towards the civil air defense door frame 21; since the elastic coefficient of the first elastic sheet 4 is greater than that of the second elastic sheet 5, after the two second elastic sheets 5 abut against the civil air defense door frame 21, the double-acting cylinder 2 synchronously drives the two first elastic sheets 4 to continue to contract, and the two second elastic sheets 5 gradually wrap the civil air defense door frame 21, and finally the clamping blocks 6 abut against the civil air defense door frame 21, thereby fixing the civil air defense door frame 21.

[0031] It should be added that a rubber layer is provided at the end of the clamping block 6 facing away from the second elastic sheet 5; when the second elastic sheet 5 drives the clamping block 6 to abut against the civil air defense door frame 21, this rubber layer is located between the civil air defense door frame 21 and the clamping block 6; this rubber layer can protect the civil air defense door frame 21 and the clamping block 6 and prevent the civil air defense door frame 21 and the clamping block 6 from being damaged due to extrusion.

[0032] It should be added that the double-acting cylinder 2 adopts the double-acting cylinder piston device in the publication number CN212509059U.

[0033] In this embodiment, leg members are installed at the four corners of the base 1; installation grooves 7 are provided at the four corners of the base 1, and a driving mechanism is provided in each installation groove 7; the four driving mechanisms correspond to the four leg members one by one; each driving mechanism drives the leg member to act, so that the leg member changes from the storage state to the support state; after the leg member changes to the support state, the driving mechanism continues to drive the leg member to act, thereby adjusting the distance between the base 1 and the ground, and further changing the height of the civil air defense door frame 21.

[0034] In this embodiment, the base 1 is a square plate-like structure; the cross-sections of the four installation grooves 7 are all isosceles right triangles; that is, the bottom surface and the top surface of the installation groove 7 are both isosceles right triangles, and the two right-angled sides of the bottom surface and the top surface correspond to the adjacent side walls of the bottom plate; a placement groove 8 is provided along the side wall of the installation groove 7, and this placement groove 8 is located on the diagonal of the base 1.

[0035] In this embodiment, the driving mechanism includes a driving component and a connecting component.

[0036] The driving component includes a driving cylinder 9, a C-shaped bracket 10, a gear 13 and a rack 14.

[0037] The C-shaped bracket 10 includes two side wall segments and a bottom wall segment, and rotation holes are coaxially formed in the two side wall segments; the tail end of the driving cylinder 9 is fixed on the side wall of the placement groove 8, and the piston rod of the driving cylinder 9 is fixed on the bottom wall segment of the C-shaped bracket 10 by bolts; the gear 13 is rotationally installed between the two side wall segments of the C-shaped bracket 10 through a rotating shaft 12, and both ends of the rotating shaft 12 respectively rotate out of the corresponding rotation holes; the rack 14 is fixed on the bottom wall of the installation groove 7 by screws, the length direction of the rack 14 is located on the diagonal line of the base 1, and the rack 14 meshes with the gear 13.

[0038] The driving cylinder 9 drives the C-shaped bracket 10 to move along the diagonal direction of the base 1, and the gear 13 rotates along with the rack 14.

[0039] In this embodiment, two mutually perpendicular chute groups are formed in the installation groove 7, the two chute groups are respectively arranged parallel to the corresponding side walls of the base 1, and the included angle between the extension lines of the two chute groups is arranged away from the placement groove 8; each chute group includes two chutes 17, and the two chutes 17 are correspondingly formed on the upper and lower inner walls of the installation groove 7.

[0040] In this embodiment, the connecting assembly includes two connecting members, and the two connecting members are respectively in corresponding cooperation with the two chute groups.

[0041] Each connecting member includes a spline telescopic rod 11, a slider 16, a shaft rod 15, and a wedge block 18.

[0042] A through hole is formed in the slider 16, slide bars are fixed on both the upper and lower side walls of the slider 16, and the slider 16 is slidably arranged in the corresponding chute 17 through the slide bars; the shaft rod 15 is rotationally installed on the slider 16 and rotates out of the through hole; both ends of the spline telescopic rod 11 are respectively fixed on the shaft rod 15 and the rotating shaft 12; the wedge block 18 is fixed on the end of the shaft rod 15 away from the spline telescopic rod 11 by bolts.

[0043] It should be added that the spline telescopic rod 11 includes a sleeve section and a support rod section; the support rod section can only move axially in the sleeve section and cannot rotate circumferentially.

[0044] In this embodiment, all four support members each include two support legs 19; the ends of the two support legs 19 close to each other are hinged; one ends of the two support legs 19 away from their hinged ends are hinged on the wedge surfaces of the corresponding wedge blocks 18.

[0045] It should be added that both wedge blocks 18 extend out of the installation groove 7; when the driving mechanism drives the leg member to act, the wedge blocks 18 prevent collision with the side walls of the base 1.

[0046] It should be added that arc-shaped portions 20 are provided at the ends of the two support legs 19 that are close to each other; an anti-slip coating is provided at the arc-shaped portion 20. After the support member is in a supported state through the driving mechanism, the arc-shaped portion 20 abuts against the ground, and the anti-slip coating can prevent the device from sliding, thereby ensuring the stability of the civil air defense door frame 21.

[0047] When the device is in use:

[0048] In the initial state, the two piston portions 3 of the double-acting cylinder 2 are both in the extended state, so that the two first elastic pieces 4 and the two second elastic pieces 5 form an ellipse with a smaller eccentricity; the driving cylinder 9 is in the contracted state, so that the two corresponding support legs 19 are in a vertical state and are located at the top corner positions of the base 1. At this time, the support legs 19 are in the retracted state.

[0049] As Figure 5 shown, when in use, place the device in the middle of the civil air defense door frame 21, and the base 1 abuts against the ground; drive the double-acting cylinder 2 to act, and the two piston portions 3 of the double-acting cylinder 2 act synchronously, and drive the two first elastic pieces 4 to contract, and the two second elastic pieces 5 gradually move towards the civil air defense door frame 21; the eccentricity of the ellipse formed by the two first elastic pieces 4 and the two second elastic pieces 5 gradually increases; when the two second elastic pieces 5 abut against the civil air defense door frame 21, the double-acting cylinder 2 drives the two first elastic pieces 4 to continue to contract synchronously, and the two second elastic pieces 5 gradually wrap the civil air defense door frame 21, so that the clamping blocks 6 abut against the civil air defense door frame 21, and finally the fixation is completed.

[0050] Since the double-acting cylinder 2 limits the first elastic piece 4, the first elastic piece 4 gradually changes from an arc state to a straight state, and the two ends of the first elastic piece 4 respectively exert pressure on the corresponding second elastic piece 5, so that the second elastic piece 5 drives the clamping block 6 to abut against the civil air defense door frame 21, and at the same time makes the middle part of the second elastic piece 5 move towards the double-acting cylinder 2. Through the above operations, the second elastic piece 5 and the clamping block 6 firmly clamp the civil air defense door frame 21.

[0051] After the civil air defense door frame 21 is fixed, start the four driving cylinders 9, and the four driving cylinders 9 act synchronously. The driving cylinder 9 drives the C-shaped bracket 10 to move along the diagonal direction of the base 1. Since the rack 14 and the gear 13 are engaged, the gear 13 rotates accordingly; the gear 13 drives the rotating shaft 12 to rotate, the rotating shaft 12 drives the spline telescopic rod 11 to rotate, the spline telescopic rod 11 drives the shaft rod 15 to rotate, the shaft rod 15 drives the wedge block 18 to rotate, and the wedge block 18 drives the support leg 19 to rotate towards the ground direction;

[0052] Meanwhile, the driving cylinder 9 drives the C-shaped bracket 10 to move along the diagonal direction of the base 1. The C-shaped bracket 10 pushes the slider 16 to move along the chute 17 through the rotating shaft 12, the spline telescopic rod 11 and the shaft rod 15. The two sliders 16 gradually approach each other, so that the angle between the two support legs 19 gradually becomes smaller.

[0053] Therefore, the two support legs 19 rotate towards the ground with the rotating shaft 12 as the rotation center, and the angle between the two support legs 19 gradually becomes smaller. Finally, the eight support legs 19 are synchronously abutted against the ground, thereby supporting the civil air defense door frame 21.

[0054] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Lateral adjustable support device for the installation of subway civil air defense door frames, characterized in that: It includes a base (1), and an elastic member is installed on the upper end surface of the base (1) through a double-acting cylinder (2); the elastic member includes two relatively arranged first elastic pieces (4) and two relatively arranged second elastic pieces (5); the two first elastic pieces (4) and the two second elastic pieces (5) are fixedly connected end to end in sequence to form an annular structure; the two piston parts (3) of the double-acting cylinder (2) are respectively fixedly connected to the two first elastic pieces (4). Leg members are installed at the four corners of the base (1); installation grooves (7) are opened at the four corners of the base (1), and a driving mechanism for driving the corresponding leg member is arranged in each installation groove (7); the driving mechanism drives the leg member to act, so that the leg member changes from a storage state to a support state. The driving mechanism includes a driving component and a connecting component. A placement groove (8) is opened along the side wall of the installation groove (7), and the placement groove (8) is located on the diagonal line of the base (1); the driving component includes a driving cylinder (9), a C-shaped bracket (10), a gear (13) and a rack (14). The driving cylinder (9) is located in the placement groove (8), the tail end of the driving cylinder (9) is fixed on the inner wall of the placement groove (8), and the piston rod of the driving cylinder (9) is fixed on the C-shaped bracket (10); the gear (13) is rotatably installed on the C-shaped bracket (10) through a rotating shaft (12); the rack (14) is fixed on the bottom wall of the installation groove (7), and the rack (14) is located on the diagonal line of the base (1). Two mutually perpendicular chute groups are opened in the installation groove (7), the two chute groups are respectively arranged parallel to the corresponding side wall of the base (1), and the included angle between the extension lines of the two chute groups is set away from the placement groove (8); each chute group includes two chutes (17), and the two chutes (17) are correspondingly opened on the upper and lower inner walls of the installation groove (7). The connecting component includes two connecting pieces; the two connecting pieces are respectively in corresponding cooperation with the two chute groups. The connecting piece includes a spline telescopic rod (11), a slider (16), a shaft rod (15), and a wedge block (18). The shaft rod (15) penetrates through the slider (16) and is rotatably connected to the slider (16); the two ends of the spline telescopic rod (11) are respectively fixed on the shaft rod (15) and the rotating shaft (12); the wedge block (18) is fixed on the end of the shaft rod (15) away from the spline telescopic rod (11); sliding strips matched with the chute (17) are fixed on the upper and lower side walls of the slider (16).

2. The lateral adjustable support device for the installation of subway civil air defense door frames according to claim 1, characterized in that: The leg member includes two support legs (19); the ends of the two support legs (19) close to each other are hinged; one ends of the two support legs (19) away from their hinged ends are hinged to the corresponding wedge block (18).

3. The lateral adjustable support device for the installation of subway civil air defense door frames according to claim 2, characterized in that: Arc-shaped parts (20) are arranged at the ends of the two support legs (19) close to each other.

4. The lateral adjustable support device for the installation of subway civil air defense door frames according to claim 1, characterized in that: The elastic coefficient of the first elastic piece (4) is greater than that of the second elastic piece (5).

5. The lateral adjustable support device for the installation of subway civil air defense door frames according to claim 1, characterized in that: Clamping blocks (6) are installed on the outer walls at both ends of the second elastic piece (5).

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