Protective device for constructional engineering

Abstract

The utility model relates to the technical field of protective devices for constructional engineering, in particular to a protective device for constructional engineering, which comprises a supporting mechanism for supporting the protective device, a folding mechanism quickly extending at the periphery of a building, and a protective mechanism for bearing falling objects on the building. The first steel cable and the second steel cable slide from the folding arm and the reinforcing rod respectively to reduce part of impact force of falling articles or falling personnel in the building, and then the damper pushes the supporting mechanism to absorb the impact force of the falling articles or the falling personnel in the building. And meanwhile, the falling objects are prevented from rebounding on the protection net through the concave shape of the protection net and twice buffering, and the protection safety of the whole building outer wall is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of protective devices for construction projects, in particular to a protective device for construction projects. Background Art

[0002] According to the patent with publication number CN217711844U, the first anti-falling plate and two sets of unloading tubes, springs and unloading rods on the lower side thereof are used for buffering, and the motor drives the gear to unfold the second anti-falling plate in cooperation with the first folding push rod, the auxiliary pin and the second folding push rod, thereby expanding the entire anti-falling area.

[0003] In the above patent document, when two anti-fall plates are used to receive personnel, since the anti-fall plates are relatively hard objects, when personnel fall from a height, personal injury may still occur because the impact force has not completely disappeared; if objects fall from high-rise buildings, the objects will hit the anti-fall plates for buffering and unloading. Since the anti-fall plates are relatively hard, the objects may bounce back when hitting the anti-fall plates, and the bounced objects may fly out of the protection area, thereby possibly causing injuries to personnel. Utility Model Content

[0004] The purpose of the utility model is to provide a protective device for construction engineering in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A protective device for construction engineering, comprising a supporting mechanism for propping up the protective device, a folding mechanism for rapidly extending outside a building, and a protective mechanism for receiving objects falling from the building;

[0007] The folding mechanism includes two folding arms that are symmetrically arranged front and back, a reinforcing rod is fixed between the two folding arms, two telescopic rods are located at the outer sides of the two folding arms, the telescopic parts of the telescopic rods are rotatably connected to the turning frame, the upper end of the turning frame is rotatably connected to the support rod, the upper end of the support rod is rotatably connected to the lower side of the folding arm, and a buffer mechanism is provided on the lower side of the folding mechanism to slow down its descending speed and impact force;

[0008] The protection mechanism comprises a protection net, a second steel cable is fixed to one end of the protection net close to the buffer mechanism, a first steel cable is fixed to the other end of the protection net, and the protection net is made of nylon material;

[0009] The first steel cable is composed of a first transverse rear section, a first longitudinal section, a first transverse front section, two first vertical sections and two first inclined sections, the first transverse rear section, the first longitudinal section and the first transverse front section form a frame structure, the protective net is connected to the first longitudinal section by a knot, the first transverse rear section and the first transverse front section are parallel to each other and are respectively located above two folding arms, the two first vertical sections and the two first inclined sections form two vertical L-shaped structures, the first vertical section is in a vertical state, the first inclined section bypasses the connection position between the folding arm and the reinforcing rod, and the two first inclined sections are respectively connected to the first transverse rear section and the first transverse front section;

[0010] The second steel cable consists of a second longitudinal section, two second vertical sections and two second inclined sections. The second longitudinal section is connected to one end of the protective net. The second vertical section is vertically arranged, and the two second vertical sections are located at the inner side of the two first vertical sections. The second inclined section bypasses the connection position of the folding arm and the reinforcing rod, and the two second vertical sections are respectively connected to the two ends of the second longitudinal section through the two second inclined sections.

[0011] Preferably: the buffer mechanism includes a buffer frame, a base plate is fixed at the lower end of the buffer frame, a damper is fixed on the base plate below the reinforcing rod, the lower ends of the two first vertical sections and the two second vertical sections are fixed on the top of the base plate, and the buffer frame is located between the two second vertical sections.

[0012] Preferably: the folding arm is provided with two first sliding grooves for facilitating the sliding of the first steel cable, the reinforcing rod is provided with two second sliding grooves for facilitating the sliding of the second steel cable, and the end of the folding arm away from the reinforcing rod is provided with two light holes for allowing the connecting positions of the first longitudinal section and the first transverse rear section and the first longitudinal section and the first transverse front section to pass through.

[0013] Preferably: the support mechanism includes a support frame, a guide frame is fixed on one side of the support frame, a fixed shaft for supporting the reinforcing rod and the telescopic rod fixing part is fixed on the upper end of the support frame, and installation shafts for supporting the lower end of the flip frame are fixed on both front and rear sides of the lower end of the support frame.

[0014] Preferably, a T-shaped guide rail is provided on the buffer frame, and a T-shaped slot matching the T-shaped guide rail is provided on the guide frame.

[0015] Preferably: the T-shaped guide rail of the buffer frame is provided with expansion nail holes for fixing the buffer frame to the outer wall of the building, and the reinforcing rod is provided with a through hole cooperating with the fixed shaft.

[0016] Compared with the prior art, the beneficial effects are as follows: the first steel cable and the second steel cable slide on the folding arm and the reinforcing rod respectively to reduce part of the impact force of objects or people falling from the building, and then the damper pushes the supporting mechanism to absorb the impact force of objects or people falling from the building, thereby avoiding damage to the fallen objects or injury to people, and at the same time, the concave shape of the protective net and the two buffers prevent the fallen objects from rebounding on the protective net, thereby further improving the protective safety of the entire building exterior wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a structural schematic diagram of a protective device for construction engineering described in the utility model;

[0019] Figure 2 It is a schematic structural diagram of the cooperation between the first steel cable and the bottom plate of a protective device for construction engineering described in the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the first chute and the second chute of a protective device for construction engineering described in the utility model;

[0021] Figure 4 It is a schematic diagram of the folding mechanism structure of a protective device for construction engineering described in the utility model;

[0022] Figure 5 This is a schematic diagram of the guide frame structure of a protective device for construction engineering described in the utility model;

[0023] Figure 6 It is a schematic diagram of the structure of the cooperation between the guide frame and the buffer frame of the protective device for construction engineering described in the utility model;

[0024] Figure 7 This is a schematic diagram of the structure of a buffer mechanism of a protective device for construction engineering described in the utility model;

[0025] Figure 8 The utility model is a schematic diagram of the structure of the cooperation between the turning frame and the supporting rod of the protective device for construction engineering.

[0026] The following are the descriptions of the reference numerals:

[0027] 1. Folding mechanism; 2. Support mechanism; 3. Buffer mechanism; 4. Protection mechanism; 11. Folding arm; 12. Reinforcement rod; 13. Telescopic rod; 14. Flip frame; 15. Support rod; 16. First slide groove; 17. Second slide groove; 21. Support frame; 22. Guide frame; 23. Fixed axis; 24. Mounting axis; 25. Limiting plate; 31. Buffer frame; 32. Bottom plate; 33. Damper; 41. First steel cable; 42. Protection net; 43. Second steel cable; 411. First horizontal rear section; 412. First longitudinal section; 413. First horizontal front section; 414. First vertical section; 415. First inclined section; 431. Second longitudinal section; 432. Second vertical section; 433. Second inclined section. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0029] The utility model is further described below in conjunction with the accompanying drawings:

[0030] like Figure 1-Figure 8 As shown, a protective device for construction engineering includes a supporting mechanism 2 for propping up the protective device, a folding mechanism 1 that is quickly extended to the periphery of a building, and a protective mechanism 4 for receiving objects falling from the building;

[0031] In this embodiment: the folding mechanism 1 includes two folding arms 11 that are symmetrically arranged front and back, a reinforcing rod 12 is fixed between the two folding arms 11, two telescopic rods 13 are located at the outer sides of the two folding arms 11, the telescopic portion of the telescopic rod 13 is rotatably connected to a flip frame 14, the upper end of the flip frame 14 is rotatably connected to a support rod 15, the upper end of the support rod 15 is rotatably connected to the lower side of the folding arm 11, and a buffer mechanism 3 is provided on the lower side of the folding mechanism 1 to slow down its descending speed and impact force, the telescopic portion of the telescopic rod 13 is used to push the upper end of the flip frame 14 to move away from the reinforcing rod 12, the flip frame 14 is used to make the support rod 15 and it be in the same straight line position, and then the folding arm 11 is pushed to flip upward by extending the flip frame 14 and the support rod 15;

[0032] In this embodiment: the protection mechanism 4 includes a protection net 42, a second steel cable 43 is fixed to one end of the protection net 42 close to the buffer mechanism 3, and a first steel cable 41 is fixed to the other end of the protection net 42. The protection net 42 is made of nylon material. The first steel cable 41 is composed of a first transverse rear section 411, a first longitudinal section 412, a first transverse front section 413, two first vertical sections 414 and two first inclined sections 415. The first transverse rear section 411, the first longitudinal section 412 and the first transverse front section 413 form a frame structure, and The protective net 42 is connected to the first longitudinal section 412 by a knot, and the first transverse rear section 411 and the first transverse front section 413 are parallel to each other and are respectively located above the two folding arms 11, the two first vertical sections 414 and the two first inclined sections 415 form two vertical L-shaped structures, and the first vertical section 414 is in a vertical state, the first inclined section 415 bypasses the connection position between the folding arm 11 and the reinforcing rod 12, the two first inclined sections 415 are respectively connected to the first transverse rear section 411 and the first transverse front section 413, and the second steel cable 4 The second longitudinal section 431 is connected to one end of the protective net 42, the second vertical section 432 is vertically arranged, and the two second vertical sections 432 are located at the inner side of the two first vertical sections 414, and the second inclined sections 433 bypass the connection position between the folding arm 11 and the reinforcing rod 12, and the two second vertical sections 432 are respectively connected to the two ends of the second longitudinal section 431 through the two second inclined sections 433, and the folding arm 11 is provided with two The reinforcing rod 12 is provided with two second slide grooves 17 which are convenient for sliding the second steel cable 43. The end of the folding arm 11 away from the reinforcing rod 12 is provided with two light holes for allowing the connection positions of the first longitudinal section 412 and the first transverse rear section 411 and the first longitudinal section 412 and the first transverse front section 413 to pass through. The first steel cable 41 is used to support the end of the protective net 42 away from the reinforcing rod 12, and the second steel cable 43 is used to support the end close to the reinforcing rod 12.

[0033] In this embodiment: the buffer mechanism 3 includes a buffer frame 31, a bottom plate 32 is fixed at the lower end of the buffer frame 31, a damper 33 is fixed at the bottom plate 32 below the reinforcing rod 12, the lower ends of the two first vertical sections 414 and the two second vertical sections 432 are fixed at the top of the bottom plate 32, and the buffer frame 31 is located between the two second vertical sections 432, and the T-shaped guide rail of the buffer frame 31 is provided with expansion nail holes for fixing it to the outer wall of the building, and the reinforcing rod 12 is provided with a through hole that cooperates with the fixed shaft 23. The buffer frame 31 is used to facilitate the support mechanism 2 to drive the folding mechanism 1 to move up and down, and at the same time, the damper 33 on the bottom plate 32 is used to reduce the impact force of objects dropped from the folding mechanism 1.

[0034] In this embodiment: the support mechanism 2 includes a support frame 21, a guide frame 22 is fixed to one side of the support frame 21, a fixed shaft 23 for supporting the fixed parts of the reinforcing rod 12 and the telescopic rod 13 is fixed to the upper end of the support frame 21, and the front and rear sides of the lower end of the support frame 21 are fixed with installation shafts 24 for supporting the lower end of the flip frame 14. A T-shaped guide rail is provided on the buffer frame 31, and a T-shaped groove matching the T-shaped guide rail is provided on the guide frame 22. The guide frame 22 on the support frame 21 is used to allow the entire folding mechanism 1 to move downward along the buffer frame 31, and the fixed shaft 23 is used to rotationally support the fixed parts of the reinforcing rod 12 and the telescopic rod 13 respectively, and the installation shaft 24 is used to support the lower end of the flip frame 14.

[0035] Working principle: When in use, the buffer frame 31 is placed against the outside of the building to be protected, and then the expansion nails are passed through the expansion nail holes of the buffer frame 31 to fix it on the outer wall of the building. At the same time, the telescopic part of the telescopic rod 13 extends and pushes the flip frame 14 to flip around the installation axis 24. Then the upper end of the flip frame 14 swings away from the reinforcing rod 12, and then the flip frame 14 drives the support rod 15 to unfold. Then the two folding arms 11 are driven by the flip frame 14 and the support rod 15 to flip upward around the fixed axis 23. Then the protection net 42 between the two folding arms 11 is unfolded and in a horizontal state, and then multiple groups can be installed to protect the outer wall of the building;

[0036] When objects fall from the building, the objects will hit the protection net 42 due to the action of gravity, and the protection net 42 will begin to sink downward along with the fallen objects. At this time, the first longitudinal section 412 of the first steel cable 41 and the second longitudinal section 431 of the second steel cable 43 will pull the two ends of the protection net 42 with the support of the folding arm 11 and the reinforcing rod 12. As the protection net 42 continues to sink downward, the downward pressure force will be transmitted to the folding mechanism 1 and the supporting mechanism 2 through the first longitudinal section 412 of the first steel cable 41 and the second longitudinal section 431 of the second steel cable 43. At the same time, the first longitudinal section 412 will pull the first transverse rear section 411 and the first transverse front section 413, and the second longitudinal section 431 will pull the two second vertical sections 432 through the second inclined section 433. In this process, the folding mechanism 1 and the supporting mechanism 2 will move downward under this force. The movement will cause the second inclined section 433 of the second steel cable 43 to drive the second vertical section 432 to slide out along the second slide groove 17 on the reinforcing rod 12 following the protective net 42, and the first transverse rear section 411 and the first transverse front section 413 of the first steel cable 41 will respectively drive the first inclined section 415 and the first vertical section 414 connected thereto to slide along the first slide groove 16 of the folding arm 11, and the ends of the first transverse rear section 411 and the first transverse front section 413 connected to the first longitudinal section 412 will slide out from the light hole, and allow the first longitudinal section 412 to move downward following the recessed structure of the protective net 42, and then reduce part of the impact force by sliding the first steel cable 41 and the second steel cable 43. At the same time, when the limit plate 25 on the lower side of the support frame 21 contacts the damper 33, the damper 33 will reduce the downward impact force of the support frame 21 for a second time, thereby preventing the protective net 42 from being broken due to excessive impact force.

[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A protective device for construction engineering, comprising a supporting mechanism (2) for supporting the protective device, characterized in that: It also includes a folding mechanism (1) that is quickly extended outside the building and a protective mechanism (4) for receiving objects falling from the building; The folding mechanism (1) comprises two folding arms (11) arranged symmetrically in front and back, a reinforcing rod (12) is fixed between the two folding arms (11), two telescopic rods (13) are located at the outer sides of the two folding arms (11), the telescopic parts of the telescopic rods (13) are rotatably connected to a flip frame (14), the upper end of the flip frame (14) is rotatably connected to a support rod (15), the upper end of the support rod (15) is rotatably connected to the lower side of the folding arm (11), and a buffer mechanism (3) is provided on the lower side of the folding mechanism (1) to slow down its descending speed and impact force; The protection mechanism (4) comprises a protection net (42), a second steel cable (43) is fixed to one end of the protection net (42) close to the buffer mechanism (3), a first steel cable (41) is fixed to the other end of the protection net (42), and the protection net (42) is made of nylon material; The first steel cable (41) is composed of a first transverse rear section (411), a first longitudinal section (412), a first transverse front section (413), two first vertical sections (414) and two first inclined sections (415); the first transverse rear section (411), the first longitudinal section (412) and the first transverse front section (413) form a frame structure; the protective net (42) is connected to the first longitudinal section (412) by a knot; and the first transverse rear section (411) and the first transverse front section (413) are connected to each other by a knot. The forward sections (413) are parallel to each other and are respectively located above the two folding arms (11); the two first vertical sections (414) and the two first inclined sections (415) form two vertical L-shaped structures; the first vertical sections (414) are in a vertical state; the first inclined sections (415) bypass the connection position between the folding arm (11) and the reinforcing rod (12); and the two first inclined sections (415) are respectively connected to the first transverse rear section (411) and the first transverse front section (413); The second steel cable (43) is composed of a second longitudinal section (431), two second vertical sections (432) and two second inclined sections (433); the second longitudinal section (431) is connected to one end of the protective net (42); the second vertical section (432) is vertically arranged, and the two second vertical sections (432) are located at the inner side of the two first vertical sections (414); the second inclined section (433) bypasses the connection position between the folding arm (11) and the reinforcing rod (12); and the two second vertical sections (432) are respectively connected to the two ends of the second longitudinal section (431) through the two second inclined sections (433).

2. A protective device for construction engineering according to claim 1, characterized in that: The buffer mechanism (3) comprises a buffer frame (31), a bottom plate (32) is fixed at the lower end of the buffer frame (31), a damper (33) is fixed at the bottom plate (32) located below the reinforcing rod (12), the lower ends of two first vertical sections (414) and two second vertical sections (432) are fixed to the top of the bottom plate (32), and the buffer frame (31) is located between the two second vertical sections (432).

3. A protective device for construction engineering according to claim 1, characterized in that: The folding arm (11) is provided with two first sliding grooves (16) for facilitating the sliding of the first steel cable (41), the reinforcing rod (12) is provided with two second sliding grooves (17) for facilitating the sliding of the second steel cable (43), and the end of the folding arm (11) away from the reinforcing rod (12) is provided with two light holes for allowing the connection positions of the first longitudinal section (412) and the first transverse rear section (411) and the first longitudinal section (412) and the first transverse front section (413) to pass through.

4. A protective device for construction engineering according to claim 2, characterized in that: The support mechanism (2) comprises a support frame (21), a guide frame (22) being fixed to one side of the support frame (21), a fixed shaft (23) being fixed to the upper end of the support frame (21) for supporting the fixing parts of the reinforcing rod (12) and the telescopic rod (13), and a mounting shaft (24) being fixed to the front and rear sides of the lower end of the support frame (21) for supporting the lower end of the flip frame (14).

5. A protective device for construction engineering according to claim 4, characterized in that: The buffer frame (31) is provided with a T-shaped guide rail, and the guide frame (22) is provided with a T-shaped slot matched with the T-shaped guide rail.

6. A protective device for construction engineering according to claim 4, characterized in that: The T-shaped guide rail of the buffer frame (31) is provided with expansion nail holes for fixing the buffer frame (31) on the outer wall of the building, and the reinforcing rod (12) is provided with a through hole that matches the fixed shaft (23).

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