CN117211547A - Horizontal entrance to a cave protection modularization device - Google Patents

Abstract

The invention relates to the technical field of safety protection of construction supplies, in particular to a horizontal hole protection modularized device, which solves the problems that in the prior art, when a protection device moves to an upper horizontal hole, the installation process is complex, the installation is slow, and the construction efficiency is affected. The horizontal tunnel portal protection modularized device comprises a supporting frame, wherein a protection plate is arranged on the supporting frame, the supporting frame comprises a plurality of bottom beams, the end parts of the bottom beams are hinged with bearing feet, and hinge holes of the bearing feet are eccentrically arranged; the upper surface of the protection plate is provided with a foldable protection component. The invention has the beneficial effects that: when carrying out protector and promoting, the bearing foot takes place to rotate under the effect of wall, makes the bearing foot hug closely the wall and upwards slide, and after protector moved to the preset position, the wall was relieved the spacing of bearing foot, and the bearing foot is owing to eccentric dead weight design, and the bearing foot rotates and overlap joint to the border of reserving hole or horizontal entrance to a cave on the wall voluntarily, accomplishes horizontal entrance to a cave protector's installation fast.

Description

Horizontal entrance to a cave protection modularization device

Technical Field

The invention relates to the technical field of safety protection of construction supplies, in particular to a modularized device for protecting a horizontal tunnel portal.

Background

The safety protection of engineering construction is crucial, but more horizontal holes are reserved in civil engineering, so that the falling objects at the horizontal holes are prevented from striking lower constructors, and a protection device is needed to be added outside the horizontal holes. In the prior art, two wood beams are wedged in the horizontal hole, and the thick wood plywood is covered on the horizontal hole, so that the protection device under the method meets the safety requirement in protection, but is inconvenient to install the wood beams, the size of the horizontal hole needs to be measured, the wood beams with the corresponding lengths are selected for installation, the workload of workers is increased during disassembly, and meanwhile, the manufactured horizontal hole protection cannot be used for multiple times, so that the defect of high material cost exists.

The patent with publication number CN116641569A discloses a horizontal tunnel portal protection device, which comprises a rectangular protection plate, a limiting component, a height adjusting component, a clamping component and a fence component; the limiting assembly comprises a limiting rod which is in sliding connection with the protection plate; the height adjusting component comprises a height adjusting rod, and the limiting rod is connected with the height adjusting rod in a sliding manner; the clamping assembly comprises a clamping rod, and the height adjusting rod is rotationally connected with the clamping rod; the fence component comprises four groups of protective fences, and the four groups of protective fences are uniformly distributed around the protective plate. Above-mentioned protector passes through spacing subassembly to fix in horizontal entrance to a cave inner wall department, thereby make the guard plate protect the entrance to a cave, but when protector uses, its operation process is complicated, when rising protector from lower floor's horizontal entrance to a cave of upper strata level, need pack up protector completely, will be about to spacing subassembly, heighten subassembly, chucking subassembly and rail subassembly all resume the normal position, after protector rises to upper horizontal entrance to a cave, expand protector and install, installation effectiveness when seriously influencing protector and upwards moving influences the construction progress.

Disclosure of Invention

The invention provides a horizontal hole protection modularized device, which solves the problems that in the prior art, when a protection device moves to an upper horizontal hole, the installation process is complex, the installation is slow, and the construction efficiency is affected.

The technical scheme of the invention is realized as follows:

the horizontal tunnel portal protection modularized device comprises a supporting frame, wherein a protection plate is arranged on the supporting frame, the supporting frame comprises a plurality of bottom beams, the end parts of the bottom beams are hinged with bearing feet, and hinge holes of the bearing feet are eccentrically arranged; the upper surface of the protection plate is provided with a foldable protection component. The support frame provides support for the protection plate, so that the protection plate shields and protects the horizontal hole; the bearing feet at the end parts of the bottom beams, through which the supporting frames pass, are lapped at the horizontal hole, specifically, when the protective device is lifted, the bearing feet rotate under the action of the wall surface, so that the bearing feet cling to the wall surface and slide upwards, after the protective device moves to a preset position, the limit of the wall surface to the bearing feet is relieved, and due to the eccentric dead weight design of the bearing feet, the bearing feet automatically rotate and lap to the reserved position on the wall or the edge of the horizontal hole, so that the installation of the protective device for the horizontal hole is rapidly completed, and the installation efficiency of the protective device is improved; and the protection component on the protection plate can block the staff, prevent that the staff from mistake and go up on the protection plate, guarantee staff's safety.

The bearing foot comprises a bearing leg and a counterweight leg which are integrally connected, the hinge hole is positioned between the bearing leg and the counterweight leg, and the inner side surfaces of the bearing leg and the counterweight leg are mutually perpendicular. The bearing foot can rotate around the hinge hole, and after the wall of horizontal entrance to a cave is cancelled the spacing back of bearing leg, under the effect of counter weight leg, the bearing foot rotates around the hinge hole, makes the bearing leg inboard be the horizontal arrangement, and the counter weight leg inboard is vertical arrangement, and then makes the bearing leg overlap joint to the border department of reservation position or horizontal entrance to a cave on the wall, and the counter weight leg can be spacing the bearing foot with the wall contact simultaneously, realizes the support of bearing foot to the floorpan.

The included angle between the outer side surface of the bearing leg and the inner side surface of the bearing leg is A, and the angle range of A is 10-80 degrees. The angle of A can influence the overlap joint length of bearing leg and structural strength of bearing leg, and the angle of A is too little can make bearing leg structural strength lower promptly, easily takes place the cracked problem of bearing foot, and the angle of A is too big can make the overlap joint length of bearing leg reservation position or horizontal entrance to a cave's border department shorten on the wall, easily takes place the unstable condition of bearing foot overlap joint, protector drop.

The inner side surfaces of the bearing leg and the counterweight leg are respectively provided with an anti-slip pad. The anti-slip pad increases the friction between the bearing leg, the counterweight leg and the horizontal hole, prevents the bearing foot from shaking, and enables the relative position of the bearing foot and the horizontal hole to be stable, thereby ensuring the stable installation of the protection device at the horizontal hole.

The end part of the bottom beam can be detachably provided with a connecting member, the bearing foot is hinged with the connecting member, and the connecting member is provided with an error touch prevention mechanism for limiting the rotation of the bearing foot. The bearing feet can swing up and down on the connecting member so as to prevent interference between the bearing feet and the wall from influencing the use of the protection device in the lifting process of the protection device; in addition, after protector rises to the assigned position, the border overlap joint cooperation of hole or horizontal entrance to a cave on bearing foot and the wall, prevent mistake this moment and touch the structure and can carry out spacing locking to the bearing foot, restrict the rotation of bearing foot, guarantee that the border overlap joint of hole or horizontal entrance to a cave on bearing foot and the wall is stable, and then guarantee protector use's stability.

The anti-false touch mechanism comprises a sleeve fixedly arranged on the connecting member and a limiting rod penetrating through the sleeve, a side rod is hinged to the upper end of the limiting rod, and a positioning head is fixedly connected to the upper end of the side rod; when the anti-false touch mechanism is used, the limiting rod extends downwards to extend out of the sleeve to be matched with the outer side face of the counterweight leg. When the side rod and the limiting rod are in a collinear state, the side rod enters the sleeve, at the moment, the limiting rod downwards extends out of the sleeve and is matched with the outer side face of the counterweight leg, the positioning head at the upper end of the side rod is matched with the upper end of the sleeve, the positioning head positions the side rod and the limiting rod, the positions of the side rod and the limiting rod are accurate, limiting of the bearing foot is achieved, and the stability of the bearing foot in the use process is guaranteed; in addition, before protector rises, upwards mention side lever and gag lever post through the locating head, then rotate the relative gag lever post of side lever post, make for side lever and gag lever post non-collineation state, side lever and gag lever post are perpendicular promptly, and then make the gag lever post cancel the spacing to the counter weight leg, make the bearing foot can normally rotate, conveniently carry out protector and rise in-process bearing foot rotation, avoid producing the interference, guarantee that protector rises smoothly.

The support frame further comprises a plurality of square tubes, the square tubes are arranged above the bottom beams, and the protection plates are arranged on the square tubes; hanging rings are arranged at two ends of the bottom beam. The square tubes are uniformly arranged on the bottom beam, the square tubes are vertically arranged with the bottom beam, and the square tubes are fixedly connected with the bottom beam through U-shaped bolts, so that the square tubes are stably connected with the bottom beam; the protection plate can be fixed on the square tube through self-tapping screws, so that the installation and the fixation of the protection plate are convenient; the rings at the end parts of the bottom beams are convenient to connect with lifting equipment, and then when the protecting device ascends, the protecting device is conveniently lifted by the lifting equipment through the rings.

The bottom beam comprises a plurality of supporting units, the supporting units are I-steel, rib plates are arranged at two ends of the I-steel, connecting bolts penetrate through the rib plates, and adjacent supporting units are connected through the connecting bolts on the rib plates. When the protection device is used, the number of the supporting units can be determined according to the size of the horizontal hole, the supporting units are connected through the connecting bolts, the supporting units are connected and then adapt to the size of the horizontal hole, the applicability of the protection device is enhanced, the protection device can be suitable for protection of the horizontal hole with different sizes, and the protection device can be reused.

The protection component comprises a protection frame and a support rod, one side of the protection frame and one end of the support rod are respectively hinged with the protection plate, and the other end of the support rod is detachably connected with the middle part of the protection frame. Specifically, after protector installs in place, set up the protection frame, the other end and the middle part of protection frame of bracing piece are connected this moment, make bracing piece, protection frame and guard plate form triangle-shaped structure, and the bracing piece provides the support for the protection frame, and the protection frame can effectively prevent that operating personnel from going up to the guard plate, guarantees in the building construction process, avoids appearing operating personnel mistake and goes into protector's condition, and then guarantees operating personnel safety.

The inner wall of the horizontal hole is provided with an embedded box with an opening at the side edge, and the bottom surface of the inner side of the embedded box is a horizontally arranged supporting platform. Bearing legs of bearing foot and the inboard bottom surface cooperation of pre-buried box, the inboard bottom surface of pre-buried box provides the support for the bearing legs to carry out the setting of pre-buried box when carrying out wall concrete placement, the drilling step when traditional protector installs has been omitted in the setting of pre-buried box, has improved protector's installation effectiveness, and then has improved the efficiency of construction.

The invention has the beneficial effects that: the protective device can be lapped with the edge of the reserved hole or the horizontal hole on the wall surface through the bearing foot, so that the protective device is convenient to install; in addition, when carrying out protector and promoting, the bearing foot takes place to rotate under the effect of wall, makes the bearing foot hug closely the wall and upwards slide, and after protector moved to the preset position, the wall was relieved the spacing of bearing foot, and the bearing foot is owing to eccentric dead weight design, and bearing foot automatic rotation and overlap joint are to the border of reserving hole or horizontal entrance to a cave on the wall, accomplish horizontal entrance to a cave protector's installation fast, have improved protector's promotion installation effectiveness.

Be equipped with on the connecting piece of floorpan tip and prevent mistake and touch the mechanism, after protector risees to the assigned position, the border overlap joint cooperation of hole or horizontal entrance to a cave on bearing foot and the wall, prevent mistake this moment and touch the structure and can carry out spacing locking to the bearing foot, restrict the rotation of bearing foot, guarantee that the border overlap joint of hole or horizontal entrance to a cave on bearing foot and the wall is stable, and then guarantee protector use's stability.

In addition, the bottom beam is formed by splicing a plurality of supporting units, when the protection device is used, the number of the supporting units can be determined according to the size of the horizontal hole, the supporting units are connected through the connecting bolts, the supporting units are connected and then adapt to the size of the horizontal hole, the applicability of the protection device is enhanced, the protection device can be suitable for protection of the horizontal hole with different sizes, and the protection device can be reused.

After protector installs in place, will protect the frame and set up, the other end of bracing piece and the middle part of protection frame are connected this moment, make bracing piece, protection frame and guard plate form triangle-shaped structure, and the bracing piece provides the support for the protection frame, and the protection frame can effectively prevent that operating personnel from going up to the guard plate, guarantees in the building construction process, avoids appearing operating personnel mistake and goes into protector's condition, and then guarantees operating personnel safety.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a horizontal portal protection modular device of the present invention;

FIG. 2 is a schematic view of a load bearing foot structure;

FIG. 3 is a side view of a loadbearing foot;

FIG. 4 is a side view of the pre-buried box;

FIG. 5 is a schematic view of the cooperation of the bearing feet and the embedded boxes;

FIG. 6 is a schematic view of the engagement of the load bearing legs with the horizontal opening edges;

FIG. 7 is a schematic diagram of an anti-false touch mechanism;

FIG. 8 is a schematic diagram of a first protection mechanism;

FIG. 9 is a second schematic illustration of the guard mechanism;

fig. 10 is a schematic view of the protection mechanism in a folded state.

In the figure: 1. the bottom beam, 2, the embedded box, 21, the supporting platform, 3, the lifting ring, 4, the bearing foot, 41, the hinge hole, 42, the bearing leg, 43, the counterweight leg, 44, the anti-slip pad, 45, the notch, 5, the square tube, 6, the protection plate, 7, the connecting component, 8, the anti-false mechanism, 81, the sleeve, 82, the limiting rod, 83, the side rod, 84, the positioning head, 9, the protection frame, 10, the limiting bolt, 11, the supporting rod, 12, the bolt, 13 and the horizontal hole edge.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.

Embodiment 1, as shown in fig. 1, a horizontal portal protection modular device comprises a support frame, wherein a protection plate 6 is arranged on the support frame, the support frame comprises a plurality of bottom beams 1, the end parts of the bottom beams 1 are hinged with bearing feet 4, and hinge holes 41 of the bearing feet 4 are eccentrically arranged; the upper surface of the protection plate 6 is provided with a foldable protection component. The support frame provides support for the protection plate 6, so that the protection plate 6 shields and protects the horizontal hole; the bearing feet 4 at the end part of the bottom beam 1 through which the supporting frame passes are lapped at the horizontal hole, specifically, when the protection device is lifted, the bearing feet 4 rotate under the action of the wall surface, so that the bearing feet 4 cling to the wall surface to slide upwards, after the protection device moves to a preset position, as shown in fig. 5 and 6, the limit of the wall surface to the bearing feet 4 is relieved, the bearing feet 4 automatically rotate and lap to the reserved position on the wall or the edge of the horizontal hole due to the eccentric dead weight design, the installation of the protection device of the horizontal hole is rapidly completed, and the installation efficiency of the protection device is improved; and the protection component on the protection plate can block the staff, prevent that the staff from mistake and go up on the protection plate 6, guarantee staff's safety.

Further, as shown in fig. 2, the load-bearing foot 4 includes a load-bearing leg 42 and a weight leg 43 integrally connected, and the hinge hole 41 is located between the load-bearing leg 42 and the weight leg 43, with the inner side surfaces of the load-bearing leg 42 and the weight leg 43 being perpendicular to each other. The bearing foot 4 can rotate around the hinge hole 41, after the wall of the horizontal hole cancels the limit of the bearing leg 42, under the effect of the counterweight leg 43, the bearing foot 4 rotates around the hinge hole 41, the inner side of the bearing leg 42 is horizontally arranged, the inner side of the counterweight leg 43 is vertically arranged, the bearing leg 42 is further lapped to the reserved position on the wall or the edge of the horizontal hole, the counterweight leg 43 can be contacted with the wall to limit the bearing foot 4, the bearing foot 4 supports the bottom beam 1, the bottom beam 1 is further lapped to the reserved position on the wall or the edge of the horizontal hole, and the installation of the protection device is realized.

Further, the angle between the outer side surface of the bearing leg 42 and the inner side surface of the bearing leg 42 is a, and the angle of a ranges from 10 ° to 80 °. The angle of A can influence the structural strength of bearing leg 42 and the overlap joint length of bearing leg 42, and the angle of A is too little can make bearing leg 42 structural strength lower promptly, and easy broken problem of emergence bearing foot 4, and the angle of A is too big can make bearing leg 42 overlap joint length of reservation position or horizontal entrance to a cave's border department shorten on the wall, and easy emergence bearing foot 42 overlap joint is unstable, the condition that protector dropped. In this embodiment, the angle of a is 40 °, so that the enough overlap length of the bearing leg 42 at the reserved position on the wall surface or the edge of the horizontal hole is ensured, the structural strength of the bearing leg 42 is ensured, and the practicability of the bearing leg is effectively improved.

Further, the inner side surfaces of the load-bearing leg 42 and the weight leg 43 are provided with a slip-preventing pad 44, respectively. The anti-slip pad 44 increases the friction between the bearing leg 42 and the counterweight leg 43 and the horizontal hole, prevents the bearing foot 4 from shaking, and ensures that the relative position of the bearing foot 4 and the horizontal hole is stable, thereby ensuring the stable installation of the protection device in the horizontal hole.

In embodiment 2, on the basis of embodiment 1, a connecting member 7 is detachably provided at an end of the bottom beam 1, the bearing leg 4 is hinged to the connecting member 7, and an anti-false touch mechanism 8 for limiting rotation of the bearing leg 4 is provided on the connecting member 7. As shown in fig. 5 and 6, the connecting member 7 is formed by welding three mutually perpendicular steel plates, wherein the side plates in the connecting member 7 and the bottom beam 1 are fixedly connected with the end parts of the bottom beam 1 through a plurality of connecting bolts, so that the connecting member 7 is fixed on the bottom beam 1; the vertical plate of the connecting member 7 is connected with the bearing feet 4, and the bearing feet 4 are connected with the vertical plate of the connecting member 7 through the hinge shaft, so that the bearing feet 4 can rotate around the hinge shaft, and interference between the bearing feet 4 and the wall in the ascending process of the protection device is prevented, and the use of the protection device is prevented from being influenced; the roof of connecting element 7 is connected and is prevented mistake and touch mechanism 8, after protector rises to the assigned position, the border overlap joint cooperation of hole or horizontal entrance to a cave on bearing foot 4 and the wall, prevent mistake this moment and touch mechanism 8 can be through carrying out spacing realization to the lateral surface of counter weight leg 43 to the spacing locking of bearing foot 4, restriction bearing foot 4's rotation, guarantee that the border overlap joint of hole or horizontal entrance to a cave on bearing foot 4 and the wall is stable, and then guarantee protector use's stability.

Further, as shown in fig. 7, the anti-false touch mechanism 8 comprises a sleeve 81 fixedly arranged on the connecting member 7 and a limiting rod 82 penetrating through the sleeve 81, wherein a side rod 83 is hinged to the upper end of the limiting rod 82, and a positioning head 84 is fixedly connected to the upper end of the side rod 83; when the anti-false touch mechanism 8 is used, the limiting rod 82 extends downwards to extend out of the sleeve 81 to be matched with the outer side face of the counterweight leg 43. Specifically, when the side rod 83 and the limit rod 82 are in a collinear state, the side rod 83 enters the sleeve 81, at the moment, the limit rod 82 downwards extends out of the sleeve 81 and is matched with the outer side face of the counterweight leg 43, the positioning head 84 at the upper end of the side rod 83 is matched with the upper end of the sleeve 81, the positioning head 84 positions the side rod 83 and the limit rod 82, the limit rod 82 and the side rod 83 are prevented from falling from the sleeve 81, the positions of the side rod 83 and the limit rod 82 are ensured to be accurate, the limit of the bearing foot 4 is realized, and the stability of the bearing foot 4 in the use process is ensured; in addition, before the protector rises, the side rod 83 and the limiting rod 82 are lifted upwards through the positioning head 84, then the side rod 83 rotates relative to the limiting rod 82, the side rod 83 and the limiting rod 82 are in a non-collinear state, namely, the side rod 83 is perpendicular to the limiting rod 82, the limiting rod 82 is further used for canceling the limiting of the counterweight leg 43, the bearing foot 4 can normally rotate, the bearing foot 4 of the protector in the rising process is conveniently rotated, interference is avoided, and smooth rising of the protector is ensured.

In embodiment 3, on the basis of embodiment 2, the bearing leg 4 is provided with a notch in the thickness direction, as shown in fig. 3, the width of the notch is larger than the thickness of the riser of the connecting member 7, when the bearing leg 4 is installed, the riser of the connecting member 7 is inserted into the notch, the riser of the connecting member 7 can limit the bearing leg 4 to a moving degree, the bearing leg 4 is prevented from moving back and forth, and the situation of causing the position deviation of the reserved hole on the wall and the bearing leg 4 is avoided; in addition, the thickness of the side walls at the two sides of the notch of the bearing foot 4 is not less than 0.7 times of the notch width, so that the bearing foot 4 still has better structural strength under the condition of the notch, the use safety of the bearing foot 4 is ensured, and the use safety of the protecting device is further ensured.

Embodiment 4, on the basis of embodiment 2 or embodiment 3, the support frame further comprises a plurality of square tubes 5, the square tubes 5 are arranged above the bottom beam 1, and the protection plates 6 are arranged on the square tubes 5; the two ends of the bottom beam 1 are provided with hanging rings 3. In the embodiment, the number of the bottom beams 1 is two, the two bottom beams 1 are arranged in parallel, the number of the square tubes 5 is 4, each square tube 5 is arranged in parallel, the square tube 5 is arranged vertically to the bottom beam 1, the square tube 5 is fixed on the bottom beam 1 through a U-shaped bolt, the protection plate 6 is a steel frame checkered plate, and the protection plate 6 is fixed on the square tube 5 through self-tapping screws, so that stable installation of the protection plate 6 is realized; the lifting ring 3 is welded with the bottom beam 1, the lifting ring 3 at the end part of the bottom beam 1 is convenient to connect with lifting equipment, and then when the protection device rises, the protection device is conveniently lifted by the lifting equipment through the lifting ring 3.

Further, the bottom beam 1 comprises a plurality of supporting units, the supporting units are I-steel, rib plates are arranged at two ends of the I-steel, connecting bolts penetrate through the rib plates, and the adjacent supporting units are connected through the connecting bolts on the rib plates. The whole bottom beam 1 is formed by splicing a plurality of supporting units, and I-steel is connected with rib plates in a welding way; when the protection device is used, the number of the supporting units can be determined according to the size of the horizontal hole, the supporting units are connected through the connecting bolts, the supporting units are connected and then adapt to the size of the horizontal hole, the applicability of the protection device is enhanced, the protection device can be suitable for protection of the horizontal hole with different sizes, and the protection device can be reused.

In embodiment 5, on the basis of embodiment 1, as shown in fig. 8, 9 and 10, the protection assembly comprises a protection frame 9 and a support rod 11, one side of the protection frame 9 and one end of the support rod 11 are respectively hinged with the protection plate 6, and the other end of the support rod 11 is detachably connected with the middle part of the protection frame 9. Specifically, one side of the protection frame 9 and one end of the support rod 11 are respectively connected with the protection plate 6 in a rotating way through the bolts 12, and the protection frame 9 and the support rod 11 can respectively rotate around the bolts 12; when the protective component is unfolded, as shown in fig. 8 and 9, the other end of the supporting rod 11 is connected with the middle part of the protective frame 9 through the limit bolt 10, the supporting rod 11 provides support for the protective frame 9, and at the moment, the protective frame 9 can effectively prevent workers from going onto the protective plate 6, so that the safety of the workers is ensured; when the protection component is folded, the other end of the supporting rod 11 is disconnected with the middle part of the protection frame 9, the protection frame 9 and the supporting rod 11 rotate around the bolt 12 respectively, so that the protection frame 9 and the supporting rod 11 are respectively attached to the protection plate 6, and at the moment, the protection device is conveniently lifted. Specifically, when the protective device is in a use state, the protective component is unfolded; when the guard is lifted, the guard assembly is folded.

Further, as shown in fig. 4, the inner wall of the horizontal hole is provided with an embedded box 2 with an opening at the side, and the bottom surface of the inner side of the embedded box 2 is a horizontally arranged supporting platform 21. Set up buried box 2 when carrying out wall concreting, after wall concreting, buried box 2 inlays and establishes in the wall body, after protector promotes to the assigned position, bearing foot 4 and buried box 2 overlap joint, at this moment, bearing leg 42 cooperates with the supporting platform 21 in the buried box 2, supporting platform 21 provides the support for sill 1 through bearing foot 4, and then provide the support for protector, and the drilling step when traditional protector installs has been omitted in the setting of buried box 2, the installation effectiveness of protector has been improved, and then the efficiency of construction has been improved.

In addition, before the embedded box 2 is embedded, the oil-based release agent is coated on the outer side surface of the embedded box 2, and after the protection device is used, the embedded box 2 can be taken out from the wall body, so that turnover is convenient to use.

The protective device is assembled before use: selecting a proper number of supporting units according to the size of a horizontal hole to be connected with each other to form a bottom beam 1, wherein the supporting units at two ends of the bottom beam 1 adopt an I-steel structure with hanging rings 3, connecting members 7 are arranged at two ends of the bottom beam 1, and bearing feet 4 and an anti-false touch mechanism 8 are arranged on the connecting members 7, and the anti-false touch mechanism 8 is in an unlocking state; the square tube 5 is fixedly installed on the bottom beam 1 through a U-shaped bolt, the protection plate 6 is installed on the square tube 5 through a self-tapping screw, the protection frame 9 and the support rod 11 are installed on the protection plate 6, and the protection frame 9 and the support rod 11 are in a folding state.

Mounting of the protective device: placing the protection device below, connecting the lifting equipment with the lifting ring 3, then lifting the protection device by the lifting ring 3, deflecting the bearing feet 4 under the limit action of the wall surface in the lifting process, enabling the outer side surfaces of the bearing legs 42 on the bearing feet 4 to be close to the wall surface and slide upwards, and after the protection device moves to a preset position, releasing the limit of the wall surface on the bearing feet 4 as shown in fig. 5 and 6, wherein the bearing feet 4 automatically rotate and overlap the support platform 21 of the embedded box 2 or the edge of the horizontal hole due to the eccentric dead weight design, so that the installation of the horizontal hole protection device is rapidly completed, and the installation efficiency of the protection device is improved; and after protector installs in place, with the protection subassembly expansion, bracing piece 11 provides the support for protection frame 9, and protection frame 9 can prevent effectively that the staff from going up on guard plate 6 this moment.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (10)

1. The horizontal tunnel portal protection modularized device comprises a supporting frame, wherein a protection plate (6) is arranged on the supporting frame, and the supporting frame comprises a plurality of bottom beams (1), and is characterized in that the end parts of the bottom beams (1) are hinged with bearing feet (4), and hinge holes (41) of the bearing feet (4) are eccentrically arranged; the upper surface of the protection plate (6) is provided with a foldable protection component.

2. The modular horizontal tunnel portal protection device according to claim 1, characterized in that the load-bearing foot (4) comprises a load-bearing leg (42) and a counterweight leg (43) connected integrally, the hinge hole (41) being located between the load-bearing leg (42) and the counterweight leg (43), the inner sides of the load-bearing leg (42) and the counterweight leg (43) being mutually perpendicular.

3. The modular horizontal tunnel portal protection device of claim 2, wherein the outer side of the load-bearing leg (42) is angled a from the inner side of the load-bearing leg (42) by an angle in the range of 10 ° to 80 °.

4. A modular device for protection of horizontal openings according to claim 3, characterized in that the inner sides of the load-bearing legs (42) and the counterweight legs (43) are provided with anti-slip pads (44), respectively.

5. The modular horizontal tunnel portal protection device according to any one of claims 2-4, characterized in that the end part of the bottom beam (1) is detachably provided with a connecting member (7), the bearing foot (4) is hinged with the connecting member (7), and the connecting member (7) is provided with an anti-false touch mechanism (8) for limiting the rotation of the bearing foot (4).

6. The horizontal tunnel portal protection modular device according to claim 5, wherein the anti-false contact mechanism (8) comprises a sleeve (81) fixedly arranged on the connecting member (7) and a limiting rod (82) penetrating through the sleeve (81), a side rod (83) is hinged to the upper end of the limiting rod (82), and a positioning head (84) is fixedly connected to the upper end of the side rod (83); when the anti-misoperation mechanism (8) is used, the limiting rod (82) extends downwards to extend out of the sleeve (81) to be matched with the outer side face of the counterweight leg (43).

7. The modular horizontal tunnel portal protection device according to any one of claims 1-4, 6, characterized in that the support frame further comprises a plurality of square tubes (5), the square tubes (5) are arranged above the bottom beams (1), and the protection plates (6) are arranged on the square tubes (5); hanging rings (3) are arranged at two ends of the bottom beam (1).

8. The modular horizontal tunnel portal protection device according to claim 7, wherein the bottom beam (1) comprises a plurality of support units, the support units are i-beams, rib plates are arranged at two ends of each i-beam, connecting bolts are arranged on the rib plates in a penetrating mode, and adjacent support units are connected through the connecting bolts on the rib plates.

9. The horizontal tunnel portal protection modular device according to any one of claims 1-4, 6 and 8, wherein the protection assembly comprises a protection frame (9) and a support rod (11), one side of the protection frame (9) and one end of the support rod (11) are respectively hinged with the protection plate (6), and the other end of the support rod (11) is detachably connected with the middle part of the protection frame (9).

10. The modular horizontal tunnel portal protection device according to claim 9, wherein the inner wall of the horizontal tunnel portal is provided with a pre-buried box (2) with an open side, and the bottom surface of the inner side of the pre-buried box (2) is a horizontally arranged supporting platform (21).