Temporary space protection device for basement construction

Abstract

The invention relates to a temporary space protection device for basement construction, in particular to the field of tunnel construction. The defect that transportation and installation in a narrow space are not facilitated is overcome. A temporary space protection device for basement construction comprises a threaded frame and the like. The side, away from the first plate-shaped protective cover, of the threaded frame is rotationally connected with a second plate-shaped protective cover, the side, away from the lifting frame, of the second plate-shaped protective cover and the side, away from the lifting frame, of the first plate-shaped protective cover are rotationally connected, and sliding grooves are formed in the side walls of the first plate-shaped protective cover and the side wall of the second plate-shaped protective cover correspondingly. The sides, away from the threaded frame, of the first plate-shaped protective cover and the second plate-shaped protective cover are each provided with clamping grooves distributed at equal intervals. By pushing the first pushing frame to be matched with the first plate-shaped protective cover and the second plate-shaped protective cover, unfolding, locking and folding of the whole protective device are achieved.

Description

Technical Field

[0001] The present invention relates to the field of tunnel construction, and particularly to a temporary space protection device for basement construction. Background Art

[0002] In recent years, with the progress of engineering technology, a series of new temporary space protection devices have been developed to meet more stringent safety standards and construction requirements. For example, a safety top protection device is formed by hydraulic equipment to protect the safety of construction workers. However, the existing temporary space protection devices still have some limitations. For instance, some devices are bulky, which is not conducive to transportation and installation in narrow spaces; some are costly, restricting their wide application.

[0003] The application document with publication number CN119777959A discloses a tunnel construction protection device, including a support cross - plate and side support frames, which move synchronously during the rotation of the synchronous drive mechanism to adjust the position of support protection. This protection device is convenient for supporting and protecting the inner wall of the tunnel from multiple directions and has the characteristic of high stability during the support protection process. However, during use, due to the relatively large size of the equipment, it is relatively inconvenient to move in a narrow tunnel basement. Summary of the Invention

[0004] In order to overcome the disadvantage of being not conducive to transportation and installation in narrow spaces, the technical problem is to provide a temporary space protection device for basement construction.

[0005] The technical solution is as follows: A temporary space protection device for basement construction includes a threaded frame, a first plate - shaped protective cover is connected to the threaded frame by rotation, a second plate - shaped protective cover is connected to the side of the threaded frame away from the first plate - shaped protective cover by rotation, the second plate - shaped protective cover and the side of the first plate - shaped protective cover away from the lifting frame are connected to each other by rotation. Sliding grooves are provided on the side walls of the first plate - shaped protective cover and the second plate - shaped protective cover. Equally spaced clamping grooves are provided on the sides of the first plate - shaped protective cover and the second plate - shaped protective cover away from the threaded frame. First push frames are slidably connected to the first plate - shaped protective cover and the second plate - shaped protective cover. The first push frames cooperate with the clamping grooves. First springs are fixedly connected between the first plate - shaped protective cover, the second plate - shaped protective cover and the first push frames. A lifting frame is slidably connected to the threaded frame. A connecting rod is connected to the lifting frame by rotation. The side of the connecting rod away from the lifting frame passes through the sliding groove and is connected to the first push frame by rotation. A threaded ring is threadedly connected to the threaded frame.

[0006] Preferably, it further includes a convex block, the convex block is fixedly connected to the side of the first plate - shaped protective cover adjacent to the threaded frame, and a connecting groove is provided on the side of the second plate - shaped protective cover away from the first plate - shaped protective cover.

[0007] Preferably, it further includes a limiting rod, which is fixedly connected to one side of the first pushing frame. There are two limiting rods, and the two limiting rods are respectively in sliding connection with the first plate-shaped protective cover and the second plate-shaped protective cover. A limiting groove is provided on the side of the threaded frame adjacent to the limiting rod, and the limiting groove is in clamping fit with the limiting rod.

[0008] Preferably, it further includes a fixed frame, which is symmetrically and fixedly arranged on one side of the limiting frame. A clamping tooth is fixedly connected to the side of the first pushing frame adjacent to the first plate-shaped protective cover. A limiting frame is rotatably connected to the first side of the second plate-shaped protective cover adjacent to the clamping tooth, and the limiting frame is in clamping fit with the clamping tooth. A second pushing frame is slidably connected to the symmetrically arranged fixed frames. The second pushing frame passes through the first pushing frame and is movably connected to the clamping tooth. A second spring is fixedly connected between the second pushing frame and the second plate-shaped protective cover. A limiting block is slidably connected to the symmetrically arranged fixed frames. The limiting block is in clamping fit with the second pushing frame. A third spring is sleeved between the limiting block and the fixed frame. Fixed blocks symmetrically arranged along the first pushing frame are fixedly connected to the side of the first pushing frame adjacent to the fixed frame, and the symmetrically arranged fixed blocks are in contact with the limiting block.

[0009] Preferably, it further includes a first load-bearing frame, which is slidably connected to the bottom of the threaded frame. An energy-absorbing frame is fixedly connected inside the first load-bearing frame. One side of the energy-absorbing frame away from the first load-bearing frame is fixedly connected to the bottom of the threaded frame. A second load-bearing frame is fixedly connected inside the energy-absorbing frame. A bearing plate is fixedly connected to one side of the energy-absorbing frame, and the side of the bearing plate away from the energy-absorbing frame is fixedly connected to the threaded frame.

[0010] Preferably, the energy-absorbing frame is evenly provided with corrugations for absorbing the impact force received by the threaded frame.

[0011] Preferably, it further includes a reflector, which is symmetrically and fixedly connected to the left and right sides of the first plate-shaped protective cover and the second plate-shaped protective cover.

[0012] The beneficial effects of the present invention are as follows: Through the cooperation of the first pushing frame, the first plate-shaped protective cover and the second plate-shaped protective cover, the present invention realizes the unfolding, locking and folding of the entire protective device, improves the convenience and flexibility in handling in tunnel basements, and greatly improves the space utilization rate relative to construction workers when the protective device is folded.

[0013] Through the cooperation of the convex block and the connecting groove, the connection between multiple sets of protective devices is realized, the impact resistance strength of the protective device is improved, and the safety of construction workers is ensured.

[0014] Through the cooperation of the limiting rod and the limiting groove, during the unfolding process of the protective device, the impact resistance of the connection points between the threaded frame, the first plate-shaped protective cover and the second plate-shaped protective cover is enhanced, ensuring that the protective device can effectively protect construction workers when encountering cave-ins or falling rocks.

[0015] Through the cooperation of the engaging teeth and the limiting frame, when the top of the protection device is impacted, the first pushing frame is automatically locked, preventing the first pushing frame from detaching from the first plate-shaped protection cover and the second plate-shaped protection cover, greatly improving the anti-impact ability of the middle position of the protection device and increasing the survival probability of construction workers.

[0016] Through the cooperation of the energy-absorbing frame and the second bearing frame, when the protection is impacted, the energy-absorbing frame absorbs the impact force brought by falling rocks or collapses, preventing the threaded frame from deforming and bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the first perspective of the present invention.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the second perspective of the present invention.

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the folded state of the present invention.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of components such as the threaded frame, lifting frame, and first pushing frame of the present invention.

[0021] Figure 5 It is a three-dimensional structural schematic diagram of components such as the second plate-shaped protection cover and the first spring of the present invention.

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the first pushing frame and the first spring of the present invention.

[0023] Figure 7 It is a three-dimensional structural schematic diagram of the first plate-shaped protection cover, the second plate-shaped protection cover, and the limiting rod of the present invention.

[0024] Figure 8 It is a three-dimensional structural schematic diagram of components such as the first plate-shaped protection cover and the limiting rod of the present invention.

[0025] Figure 9 It is a three-dimensional structural schematic diagram of components such as the fixed block, the second pushing frame, and the limiting block of the present invention.

[0026] Figure 10 It is a three-dimensional structural schematic diagram of components such as the engaging teeth, the limiting frame, and the fixed block of the present invention.

[0027] Figure 11 It is a three-dimensional structural schematic diagram of components such as the second pushing frame, the limiting block, and the third spring of the present invention.

[0028] Figure 12 It is a three-dimensional structural schematic diagram of components such as the first bearing frame and the reflector of the present invention.

[0029] Figure 13This is a schematic three-dimensional structure diagram of components such as the energy-absorbing frame and the second load-bearing frame of the present invention.

[0030] Explanation of reference numerals: 101 - threaded frame, 102 - first plate-shaped protective cover, 103 - second plate-shaped protective cover, 1031 - card slot, 104 - threaded ring, 105 - sliding groove, 106 - lifting frame, 107 - first push frame, 108 - connecting rod, 109 - first spring, 110 - convex block, 111 - connecting groove, 201 - limiting rod, 202 - limiting slot, 301 - fixed frame, 302 - teeth, 303 - limiting frame, 304 - fixed block, 305 - second push frame, 3051 - second spring, 306 - limiting block, 307 - third spring, 401 - first load-bearing frame, 402 - energy-absorbing frame, 403 - second load-bearing frame, 404 - bearing plate, 501 - reflector. Detailed implementation manners

[0031] The following is only a preferred embodiment of the present invention and does not limit the protection scope of the present invention accordingly.

[0032] Embodiment 1: A temporary space protection device for basement construction, as Figures 1-6 shown, includes a threaded frame 101. The number of threaded frames 101 is four. The top of the two front threaded frames 101 is connected with a first plate-shaped protective cover 102 in a rotational manner. The two rear threaded frames are connected with a second plate-shaped protective cover 103 in a rotational manner. The front side of the second plate-shaped protective cover 103 is rotatably connected with the rear side of the first plate-shaped protective cover 102. Through-type sliding grooves 105 are formed in the side walls of both the first plate-shaped protective cover 102 and the second plate-shaped protective cover 103. Square card slots 1031 are equally spaced on the rear side of the first plate-shaped protective cover 102 and the front side of the second plate-shaped protective cover 103. The square card slots 1031 on the rear side of the first plate-shaped protective cover 102 and the front side of the second plate-shaped protective cover 103 are staggered with each other. The upper parts of both the first plate-shaped protective cover 102 and the second plate-shaped protective cover 103 are slidably connected with a first push frame 107. The first push frame 107 cooperates with the card slot 1031. Two first springs 109 are fixedly connected between both the first plate-shaped protective cover 102 and the second plate-shaped protective cover 103 and the first push frame 107. A lifting frame 106 is slidably connected to the threaded frame 101. The lifting frame 106 is connected with a connecting rod 108 in a rotational manner. The top of the connecting rod 108 passes through the sliding groove 105 and is rotatably connected to the side wall of the first push frame 107. The threaded frame 101 is threadedly connected with a threaded ring 104.

[0033] As Figure 4 shown, it further includes a convex block 110. The convex block 110 is fixedly connected to the front side of the first plate-shaped protective cover 102. A square connecting groove 111 is formed on the rear side of the second plate-shaped protective cover.

[0034] When moving, the entire protective device is folded for handling within the construction space. After being placed at the appropriate construction position, first open the threaded frame 101 to both sides, and then rotate the first plate-shaped protective cover 102 and the second plate-shaped protective cover 103 to open them. Manually push the lifting frame 106 to rise, thereby pushing the connecting rods 108 on both sides of the first plate-shaped protective cover 102 and the second plate-shaped protective cover 103 to move towards the middle during the rising process, and then pushing the first push frames 107 on the front and rear sides to move towards the middle. The two first push frames 107 are synchronously inserted into the card slots 1031 of the first plate-shaped protective cover 102 and the second plate-shaped protective cover 103 for locking. The first spring 109 is stretched under force. Subsequently, by rotating the threaded ring 104, the threaded ring 104 moves upward through the threads provided on the threaded frame 101. When the threaded ring 104 cannot rotate anymore after contacting the bottom of the lifting frame 106, the unfolding and locking of the protective device are completed. The top space of the construction workers is protected by the first plate-shaped protective cover 102 and the second plate-shaped protective cover 103 to prevent falling stones from dropping. When folding is required, the protective device can be restored to the folded state through the reverse operation steps of the above; When large-area protection is required during construction in the basement of a tunnel, after unfolding multiple sets of protective devices, in order to strengthen the bearing capacity between the protective devices, the convex blocks 110 on the side wall of the second plate-shaped protective cover 103 are inserted into the connecting grooves 111 within another set of protective devices to complete the connection, thereby realizing the connection between multiple sets of protective equipment. In summary, through the cooperation of the first push frame 107, the first plate-shaped protective cover 102, and the second plate-shaped protective cover 103, the unfolding and locking and folding of the entire protective device are realized, improving the convenience and flexibility of handling in the tunnel basement. When the protective device is folded, the space utilization rate is greatly improved relative to the construction workers. Through the cooperation of the convex blocks 110 and the connecting grooves 111, the connection between multiple sets of protective devices is realized, improving the impact resistance strength of the protective device and ensuring the safety of construction workers.

[0035] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 7 and Figure 8 As shown, it further includes a limiting rod 201. The limiting rod 201 is fixedly connected to the outside of the first push frame 107. The number of limiting rods 201 is two. The two limiting rods 201 are slidably connected to the first plate-shaped protective cover 102 and the second plate-shaped protective cover 103 respectively. A limiting groove 202 is provided on the outside of the threaded frame 101 and the limiting rod 201, and the limiting groove 202 is in clamping fit with the limiting rod 201.

[0036] In order to increase the impact resistance of the transition between the threaded frame 101 and the first plate-shaped protective cover 102 and the second plate-shaped protective cover 103, the specific operation is as follows: when the protective device is opened, the limit rod 201 rotates with the first plate-shaped protective cover 102 and the second plate-shaped protective cover 103. When the protective device is opened, the lower part of the limit rod 201 is at the same horizontal line as the limit groove 202. Then the first pushing frame 107 moves toward the middle, and in the process of the first pushing frame 107 inserting the card slot 1031, it drives the limit rods 201 on both sides to move toward the middle, and finally the limit rod 201 is inserted into the limit groove 202 to complete the locking. In summary, through the cooperation between the limit rod 201 and the limit groove 202, the impact resistance of the transition between the threaded frame 101 and the first plate-shaped protective cover 102 and the second plate-shaped protective cover 103 is enhanced during the deployment of the protective device, ensuring that the protective device can effectively protect the construction personnel when encountering falling rocks.

[0037] Embodiment 2: Based on embodiment 1, Figure 2 , Figure 3 , Figure 9 , Figure 10 and Figure 11 As shown, it also includes a fixed frame 301, which is fixedly and symmetrically arranged on the left and right sides of the limiting frame 303, a clamping tooth 302 is fixedly connected to the lower part of the first push frame 107, and the front side of the second plate-shaped protective cover is connected to the limiting frame 303, and the limiting frame 303 is engaged with the clamping tooth 302. The lower part of the symmetrically arranged fixed frame 301 is slidably connected to the second push frame 305, and the second push frame 305 penetrates the first push frame 107 and is movably connected to the clamping tooth 302. A second spring 3051 is fixedly connected between the side and the front side of the second plate-shaped protective cover 103, a symmetrically arranged lower portion of the fixed frame 301 is slidably connected to a limit block 306, the limit block 306 is snap-fitted with the second push frame 305, a third spring 307 is sleeved between the lower portion of the limit block 306 and the fixed frame 301, the first push frame 107 is fixedly connected to a fixed block 304 symmetrically arranged along the left and right sides of the first push frame 107, and the symmetrically arranged fixed blocks 304 are in contact with and fit with the limit block 306.

[0038] To prevent the impact caused by the self - gravity and inertia of the falling rock from bending the first push - frame 107 and disengaging it from the card slot 1031 when encountering a falling rock, resulting in the loss of the protective ability of the protection device, the specific operation is as follows: When the protection device is deployed, during the process of the first push - frame 107 moving towards the middle, it drives the fixed block 304 to move towards the middle synchronously, and no longer blocks the limit block 306. When the protection device is subjected to a severe impact caused by a falling rock during use, when the first plate - shaped protective cover 102 and the second protective cover are impacted and transmit the force to the limit block 306, the limit block 306 moves downward under the force, and the third spring 307 compresses and deforms. During the process of the limit block 306 descending, it disengages from the second push - frame 305, and the second spring 3051 instantaneously stretches and resets, thereby pushing the second push - frame 305 to move outward, and then driving the limit frame 303 to rotate clockwise and instantaneously engage into the card teeth 302, preventing the first push - frame 107 from bending due to the impact and disengaging from the card slot 1031, and losing the protective ability. In summary, through the cooperation of the card teeth 302 and the limit frame 303, when the top of the protection device is impacted, the first push - frame 107 is automatically locked, preventing the first push - frame 107 from disengaging from the first plate - shaped protective cover 102 and the second plate - shaped protective cover 103, greatly improving the anti - impact ability of the middle position of the protection device and increasing the survival probability of construction workers.

[0039] Embodiment 3: On the basis of Embodiment 2, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 12 and Figure 13 shown, it further includes a first load - bearing frame 401. The number of the first load - bearing frames 401 is four. The first load - bearing frames 401 are slidably connected to the bottom of the threaded frame 101. An energy - absorbing frame 402 is fixedly connected inside the first load - bearing frame 401. One side of the top of the energy - absorbing frame 402 is fixedly connected to the bottom of the threaded frame 101. The energy - absorbing frame 402 is evenly provided with corrugations for absorbing the impact force received by the threaded frame 101. A second load - bearing frame 403 is fixedly connected to the inner bottom of the energy - absorbing frame 402. One side of the energy - absorbing frame 402 is fixedly connected to a bearing plate 404. One side of the upper part of the bearing plate 404 is fixedly connected to the threaded frame 101.

[0040] To prevent the huge impact caused by falling rocks from exceeding the bearing capacity of the threaded frame 101 and causing the threaded frame 101 to bend, the specific operation is as follows: When the impact on the first plate-shaped protective cover 102 and the second plate-shaped protective cover 103 is too large, the impact force is transmitted to the energy-absorbing frame 402 through the threaded frame 101. The energy-absorbing frame 402 is forced to collapse downward, absorbing the impact force. The threaded frame 101 then follows and moves downward. The bearing plate 404 is bent under the force at the lower part during the downward movement of the threaded frame 101 and gradually deforms into an L shape to absorb more energy. At the same time, the bottom of the bearing plate 404 gradually contacts the ground surface during the deformation process, thereby increasing the contact area with the ground and enhancing the stability of the placement of the protection device. When the bottom of the threaded frame 101 contacts the second load-bearing frame 403, the energy-absorbing frame 402 stops collapsing. In summary, through the cooperation of the energy-absorbing frame 402 and the second load-bearing frame, when the protection is impacted, the energy-absorbing frame 402 absorbs the impact force caused by falling rocks or collapses, preventing the threaded frame 101 from deforming and bending.

[0041] As Figure 1 、 Figure 2 and Figure 3 shown, it also includes a reflector 501, and the reflector 501 is symmetrically fixedly connected to the left and right sides of the first plate-shaped protective cover 102 and the second plate-shaped protective cover 103.

[0042] To better prompt the construction personnel to evacuate in tunnels or basements with poor lighting, through the reflectors 501 on both sides of the first plate-shaped protective cover 102 and the second plate-shaped protective cover, the light source is reflected for guidance, facilitating the evacuation of the construction personnel.

[0043] The above are only examples of the present invention and are not used to limit the present invention. All equivalent replacements made within the principle of the present invention shall be included within the protection scope of the present invention. The content not elaborated in detail in the present invention belongs to the known prior art of those skilled in the art.

Claims

1. A temporary space protection device for basement construction, characterized in that, It includes a threaded frame (101). The threaded frame (101) is connected to a first plate-shaped protective cover (102). On the side of the threaded frame (101) away from the first plate-shaped protective cover (102), a second plate-shaped protective cover (103) is connected. The second plate-shaped protective cover (103) is connected to the side of the first plate-shaped protective cover (102) away from the lifting frame (106). Sliding grooves (105) are provided on the side walls of both the first plate-shaped protective cover (102) and the second plate-shaped protective cover (103). On the side of both the first plate-shaped protective cover (102) and the second plate-shaped protective cover (103) away from the threaded frame (101), card slots (1031) are provided at equal intervals. A first pushing frame (107) is slidably connected to both the first plate-shaped protective cover (102) and the second plate-shaped protective cover (103). The first pushing frame (107) is matched with the card slots (1031). First springs (109) are fixedly connected between both the first plate-shaped protective cover (102) and the second plate-shaped protective cover (103) and the first pushing frame (107). A lifting frame (106) is slidably connected to the threaded frame (101). The lifting frame (106) is connected to a connecting rod (108). The side of the connecting rod (108) away from the lifting frame (106) passes through the sliding groove (105) and is connected to the first pushing frame (107). A threaded ring (104) is threadedly connected to the threaded frame (101).

2. The temporary space protection device for basement construction according to claim 1, characterized in that, It further includes a convex block (110). The convex block (110) is fixedly connected to the side of the first plate-shaped protective cover (102) adjacent to the threaded frame (101). A connecting groove (111) is provided on the side of the second plate-shaped protective cover (103) away from the first plate-shaped protective cover (102).

3. The temporary space protection device for basement construction according to claim 2, characterized in that, It further includes a limiting rod (201). The limiting rod (201) is fixedly connected to one side of the first pushing frame (107). The number of the limiting rods (201) is two. The two limiting rods (201) are respectively slidably connected to the first plate-shaped protective cover (102) and the second plate-shaped protective cover (103). A limiting groove (202) is provided on the side of the threaded frame (101) adjacent to the limiting rod (201). The limiting groove (202) is in clamping fit with the limiting rod (201).

4. The temporary space protection device for basement construction according to claim 3, characterized in that, The device also includes a fixed frame (301), the fixed frame (301) is fixedly and symmetrically arranged on one side of the limit frame (303), a first push frame (107) is fixedly connected with a latching tooth (302) on one side adjacent to the first plate-shaped protective cover (102), a first side of the second plate-shaped protective cover (103) adjacent to the latching tooth (302) is connected to the limit frame (303), the limit frame (303) and the latching tooth (302) are engaged with each other, a symmetrically arranged fixed frame (301) is slidably connected with a second push frame (305), and the second push frame (305) passes through the first push frame (107) and is movably connected with the latching tooth (302). A second spring (3051) is fixedly connected between the second pushing frame (305) and the second plate-shaped protective cover (103); a symmetrically arranged fixed frame (301) is slidably connected to a limit block (306); the limit block (306) and the second pushing frame (305) are snap-fitted; a third spring (307) is sleeved between the limit block (306) and the fixed frame (301); a fixed block (304) symmetrically arranged along the first pushing frame (107) is fixedly connected to one side of the first pushing frame (107) adjacent to the fixed frame (301); the symmetrically arranged fixed blocks (304) are in contact with the limit blocks (306).

5. The temporary space protection device for basement construction according to claim 4, characterized in that, The invention also comprises a first load-bearing frame (401), the first load-bearing frame (401) is slidably connected to the bottom of the threaded frame (101), an energy-absorbing frame (402) is fixedly connected inside the first load-bearing frame (401), a side of the energy-absorbing frame (402) away from the first load-bearing frame (401) is fixedly connected to the bottom of the threaded frame (101), a second load-bearing frame (403) is fixedly connected inside the energy-absorbing frame (402), a bearing plate (404) is fixedly connected to one side of the energy-absorbing frame (402), and a side of the bearing plate (404) away from the energy-absorbing frame (402) is fixedly connected to the threaded frame (101).

6. The temporary space protection device for basement construction according to claim 5, characterized in that, The energy absorbing frame (402) is evenly provided with corrugations for absorbing the impact force exerted on the threaded frame (101).

7. The temporary space protection device for basement construction according to claim 6, characterized in that, It also includes a reflective plate (501), which is symmetrically fixed to the left and right sides of the first plate-shaped protective cover (102) and the second plate-shaped protective cover (103).

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