A transfer and unloading platform and its safety device

Abstract

The present invention relates to a transfer and unloading platform, which mainly comprises an external wall scaffolding and an unloading platform. The unloading platform is composed of three cantilevered steel beams, which penetrate the scaffolding and extend outwards. The outwardly extending parts are equipped with transverse keels to form a truss structure, which carries a platform plate. A tilting chain is provided in the center of the platform plate, and three parallel track beams are provided on the upper part thereof, and the beams are connected by connecting rods. A unloading box can slide on the track beam, and the beams at both ends are connected to a hydraulic mechanism to achieve synchronous lifting. The unloading box includes an unloading plate, a fence and a pulley. The fence is divided into a fixed part and a flipping part. The flipping fence can serve as a safety fence or a supporting mechanism. The limiter on the platform plate fixes the flipping fence. The hydraulic mechanism includes two hydraulic arms that lift synchronously. The platform is also equipped with safety devices, including an early warning steel cable and an early warning device, as well as a wind pressure detector to ensure the safe and stable operation of the platform under different wind pressures. The platform of the present invention improves construction safety and efficiency.

Description

Technical Field

[0001] The invention relates to the field of building construction, in particular to a transfer and unloading platform used in building construction and a safety device thereof. Background Art

[0002] With the development of the construction industry, the construction of high-rise and super-high-rise buildings is increasing. As an indispensable facility in the construction process, the safety, stability and ease of operation of the unloading platform have an important impact on the construction progress and safety. Traditional unloading platforms mainly include two types: ground-standing and cantilevered. Although the ground-standing unloading platform has a simple structure, it has the disadvantages of time-consuming erection, occupying a lot of space, and affecting outdoor projects. In addition, due to its fixed nature, it is not suitable for high-rise building construction. The cantilevered unloading platform is cantilevered by wire rope or steel diagonal bracing trusses, which solves the problem of height restrictions, but the turnover process is cumbersome and there are safety hazards.

[0003] In order to improve construction efficiency and safety, self-climbing unloading platforms have appeared on the market. They are gradually welcomed by construction units for their simple structure, convenient operation, economical and practical advantages. However, the existing cantilever unloading platforms usually rely on tower cranes and other equipment such as oxcarts when transferring materials. These equipment have limited capacity, low efficiency and difficulty in handling heavy objects or large amounts of materials. Therefore, how to achieve efficient and convenient material transfer on the cantilever unloading platform, especially when the weight is large and the quantity is large, has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] In order to solve these problems, this technical solution proposes a transfer and unloading platform, which is implemented by the following technical solutions:

[0005] A transfer and unloading platform comprises an external wall scaffolding and an unloading platform, wherein the unloading platform comprises three cantilevered steel beams, wherein the cantilevered steel beams pass through the external wall scaffolding and extend to the outside, and the cantilevered steel beams extending to the outside are provided with transverse keels, and the cantilevered steel beams and the transverse keels form a truss structure, and the truss structure carries a platform plate, and a tilting chain is provided in the middle of the platform plate, and three mutually parallel track beams are provided above the tilting chain, and connecting rods are provided between the three track beams so that the three track beams form a whole, and a unloading box is slidably connected to the track beam, and the unloading box slides on the track beam, and the ends of the track beams on both sides away from the external wall scaffolding are respectively hingedly connected to hydraulic mechanisms, and the other ends of the hydraulic mechanisms are hingedly connected to the platform plate, and the two hydraulic mechanisms are synchronous mechanisms.

[0006] Furthermore, the tilting chain includes a top plate and a bottom plate, and three triangular chains are arranged between the top plate and the bottom plate, wherein one triangular chain is arranged at the midline position of the top plate and the bottom plate, and the other two triangular chains are symmetrically distributed on both sides along the middle triangular chain, and the midpoints of the three track beams are respectively welded to the positions of the three triangular chains corresponding to the top plate.

[0007] Furthermore, the unloading box includes a rectangular unloading plate, a fence and a pulley, there are six pulleys, each two front and rear wheels form a group, each group of front and rear wheels is arranged at the position of a track beam, the fence includes a fixed fence and a flip fence, the fixed fence is arranged on the two sides of the unloading plate perpendicular to the building and the farthest side parallel to the building, the flip fence is arranged on the nearest side of the unloading plate parallel to the building, the flip fence can serve as a safety fence when flipped up, and can serve as a support mechanism for the unloading box when flipped down, and a limiter is arranged on the platform plate, and the limiter can fix the flipped fence so that the flipped fence can play a role of supporting the unloading box.

[0008] Furthermore, the limiter includes a C claw and a base. The opening direction of the C claw is 45° upward and opens toward the building. The width of the opening is 6 / 7 of the diameter of the flip fence crossbar. The limiter is made of aluminum alloy. There are three limiters, which correspond to the positions of three track beams respectively.

[0009] Furthermore, the hydraulic mechanism includes two hydraulic arms, which are respectively hingedly connected to the ends of the track beams on both sides, and the two hydraulic arms rise and fall synchronously.

[0010] The above-mentioned transfer and unloading platform also includes a safety device, which includes an early warning steel cable. Two early warning steel cables are provided, one end of which is respectively connected to the end of the cantilevered steel beams on both sides, and the other end is respectively connected to the superstructure. An early warning device is provided on the early warning steel cable, and the early warning device includes an alarm and a force detection device, and is also provided with a wind pressure detector. The operation mode of the early warning device includes:

[0011] The current basic wind pressure w0 is measured by a wind pressure detector, and the standard value of wind load w perpendicular to the building surface is calculated based on the basic wind pressure. k :

[0012] w k =β z ×μ s ×μ z ×w0, where:

[0013] β z is the wind vibration coefficient at height z, μ s is the wind load shape coefficient, μ z is the coefficient of wind pressure height variation, w0 is the basic wind pressure;

[0014] The instantaneous tension detection value F0 of the steel cable is measured by the force detection device, and the steel cable tension warning value is F2:

[0015] F2=0.8F1++0.5w k L, where:

[0016] The design load value of the steel cable is F1, and L is the length of the cantilever steel beam;

[0017] The warning rule is that when the instantaneous tension detection value F0 of the steel cable is greater than or equal to the steel cable tension warning value F2, a warning is issued and the alarm is sounded.

[0018] The transfer and unloading platform and the safety device thereof of the present invention have the following significant beneficial effects:

[0019] (1) Compared with the existing unloading platform which is a telescopic method, the fixed unloading platform is more stable and has a higher bearing capacity. In addition, compared with the existing unloading platform which is a fixed method, the unloading box can be moved by gravity, thus avoiding the exposure of construction workers in the lifting area, reducing the construction risk factor, and allowing construction workers to take materials on the construction platform;

[0020] (2) The curtain triangle chain is the most stable articulation method, which can improve the bearing capacity of the tilting chain while ensuring stable rotation;

[0021] (3) Due to the provision of a flip fence, when there is no need to unload, the unloading box is positioned near the building and on standby, and the guardrail of the unloading box is flipped up to form a safety fence for the platform gap; when unloading, the unloading box is positioned near the building and the guardrail of the unloading box is flipped down, and the cross bar is stuck in the limiter, which can serve as a support mechanism for the unloading box and relieve the bearing pressure of the track beam and the hydraulic arm; the opening mode is determined by setting the flip motion trajectory corresponding to the flip fence, so that the flip fence is easier to enter the limiter for fixing;

[0022] (4) Due to the setting of the hydraulic arm, the entire unloading process can be ensured to be smoother, preventing the unloading box from tilting too fast and causing a large kinetic energy to impact the track beam, causing it to break through the limit mechanism and cause derailment, further improving the safety factor and stability factor of the unloading platform;

[0023] (5) Due to the setting of the early warning steel cable and the consideration of the influence of high-altitude wind load, the safety and stability of the entire unloading platform are further improved, and the risk of overloading is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the description of the implementation modes will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 It is a detailed structural schematic diagram of the present invention.

[0027] Figure 3 It is a schematic diagram of the track beam structure of the present invention.

[0028] Figure 4 It is a schematic diagram of the structure of the discharge box of the present invention.

[0029] Figure 5 It is a schematic diagram of the flipping fence of the unloading box of the present invention.

[0030] Figure 6 It is a schematic diagram of material receiving in the discharge box of the present invention.

[0031] Figure 7 It is a schematic diagram of the flipping fence of the unloading box of the present invention.

[0032] Figure 8 It is a schematic diagram of unloading of the unloading box of the present invention.

[0033] Fig. 9 It is a schematic diagram of the limiter structure of the present invention.

[0034] Fig.10 It is a schematic diagram of the structure of the safety device of the present invention.

[0035] Description of reference numerals:

[0036] 100-exterior wall scaffolding, 200-unloading platform, 201-cantilever steel beam, 202-transverse keel, 203-platform plate, 204-tilt chain, 2041-top plate, 2042-bottom plate, 2043-triangular chain, 205-track beam, 206-connecting rod, 207-unloading box, 2071-unloading plate, 2072-fence, 2073-pulley, 2074-fixed fence, 2075-flip fence, 2076-limiter, 2077-C claw, 2078-base, 208-hydraulic arm, 300-warning steel cable, 301-force detection device, 302-wind pressure detector. DETAILED DESCRIPTION

[0037] The following description of the embodiments will help the public better understand the present invention, but the specific embodiments given by the applicant cannot and should not be regarded as limitations on the technical solutions of the present invention. Any changes to the definitions of components or technical features, or formal rather than substantive changes to the overall structure should be regarded as the scope of protection defined by the technical solutions of the present invention.

[0038] In this application, unless otherwise clearly specified or limited, the terms "installation", "connection", "fixation" and the like 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 an indirect connection through an intermediate medium, or it can be internal communication between two elements, or it can be only surface contact, or surface contact connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] A transfer and unloading platform is implemented using the following technical solutions:

[0040] See also Figure 1 and Figure 2 , including an external wall scaffolding 100 and an unloading platform 200, wherein the unloading platform 200 includes three cantilevered steel beams 201, wherein the cantilevered steel beams 201 extend through the external wall scaffolding 100 and extend to the outside, wherein the cantilevered steel beams 201 extending to the outside are provided with transverse keels 202, wherein the cantilevered steel beams 201 and the transverse keels 202 form a truss structure, wherein the truss structure carries a platform plate 203, wherein a tilting chain 204 is provided in the middle of the platform plate 203, wherein the tilting chain 204 is provided on the Three track beams 205 are arranged in parallel with each other, and connecting rods 206 are arranged between the three track beams 205, so that the three track beams 205 form a whole, and a discharge box 207 is slidably connected to the track beam 205, and the discharge box 207 slides on the track beam 205. The ends of the track beams 205 on both sides away from the external wall scaffolding 100 are respectively hingedly connected with hydraulic mechanisms, and the other ends of the hydraulic mechanisms are hingedly connected to the platform plate 203, and the two hydraulic mechanisms are synchronous mechanisms. Compared with the telescopic discharge platform 200 of the prior art, the fixed discharge platform 200 is more stable and has a higher bearing capacity. Compared with the fixed discharge platform 200 of the prior art, the discharge box 207 can be moved by self-gravity, avoiding the exposure of construction personnel to the hoisting area, reducing the construction risk factor, and allowing construction personnel to take materials on the construction platform.

[0041] See also Figure 3The tilting chain 204 includes a top plate 2041 and a bottom plate 2042, and three triangle chains 2043 are arranged between the top plate 2041 and the bottom plate 2042, one triangle chain 2043 is arranged at the midline position of the top plate 2041 and the bottom plate 2042, and the other two triangle chains 2043 are symmetrically distributed on both sides along the middle triangle chain 2043, and the midpoints of the three track beams 205 are respectively welded to the positions of the top plate 2041 corresponding to the three triangle chains 2043. The triangle chain 2043 is the most stable articulation mode, which can improve the bearing capacity of the tilting chain 204 while ensuring stable rotation.

[0042] See also Figure 4-8 The unloading box 207 includes a rectangular unloading plate 2071, a fence 2072 and a pulley 2073. There are six pulleys 2073, with two front and rear wheels in each group. Each group of front and rear wheels is correspondingly arranged at the position of a track beam 205. The fence 2072 includes a fixed fence 2074 and a flip fence 2075. The fixed fence 2074 is arranged on the two sides of the unloading plate 2071 perpendicular to the building and the farthest side parallel to the building. The flip fence 2075 is arranged on the nearest side of the unloading plate 2071 parallel to the building. The flip fence 2075 can serve as a safety fence when flipped up, and can serve as a supporting mechanism for the unloading box 207 when flipped down. A limiter 2076 is arranged on the platform plate 203. The limiter 2076 can fix the flipped fence 2072 so that the flipped fence 2072 can support the unloading box 207. Due to the provision of the flip fence 2075, when there is no need to unload, the unloading box 207 is positioned on standby near the side of the building, and the guardrail of the unloading box 207 is flipped up to form a safety fence for the platform gap; while when unloading, the unloading box 207 is positioned on the side of the building for unloading, and the guardrail of the unloading box 207 is flipped down, and the cross bar is stuck in the limiter 2076, which can serve as a supporting mechanism for the unloading box 207, alleviating the bearing pressure of the track beam 205 and the hydraulic arm 208.

[0043] See also Fig. 9 The stopper 2076 includes a C claw 2077 and a base 2078. The opening direction of the C claw 2077 is 45 degrees upward, opening toward the building, and the width of the opening is 6 / 7 of the diameter of the crossbar of the flip fence 2075. The stopper 2076 is made of aluminum alloy. There are three stoppers 2076, which correspond to the positions of the three track beams 205. The opening mode is determined by setting the flip motion trajectory corresponding to the flip fence 2075, so that the flip fence 2075 can be more easily entered into the stopper 2076 for fixation.

[0044] See also Figure 5The hydraulic mechanism includes a hydraulic arm 208, two of which are respectively hingedly connected to the ends of the track beams 205 on both sides, and the two hydraulic arms 208 are raised and lowered synchronously. Due to the setting of the hydraulic arm 208, the entire unloading process can be ensured to be smoother, and the unloading box 207 is prevented from tilting too fast and causing a large kinetic energy to impact the track beam 205 so that it breaks through the limit mechanism and derails, thereby further improving the safety factor and stability factor of the unloading platform 200.

[0045] See also Fig.10 The above-mentioned transfer and unloading platform 200 also includes a safety device, which includes an early warning cable 300. Two early warning cables 300 are provided, one end of which is respectively connected to the ends of the cantilevered steel beams 201 on both sides, and the other end is respectively connected to the superstructure. An early warning device is provided on the early warning cable 300, and the early warning device includes an alarm and a force detection device 301, and is also provided with a wind pressure detector 302. The operation mode of the early warning device includes:

[0046] The current basic wind pressure w0 is measured by the wind pressure detector 302, and the standard value of the wind load w perpendicular to the building surface is calculated according to the basic wind pressure. k :

[0047] w k =β z ×μ s ×μ z ×w0, where:

[0048] β z is the wind vibration coefficient at height z, μ s is the wind load shape coefficient, μ z is the coefficient of wind pressure height variation, w0 is the basic wind pressure;

[0049] The instantaneous tension detection value F0 of the steel cable is measured by the force detection device 301, and the steel cable tension warning value is F2:

[0050] F2=0.8F1++0.5w k L, where:

[0051] The design load value of the steel cable is F1, and L is the length of the cantilever steel beam 201;

[0052] The warning rule is that when the instantaneous tension detection value F0 of the steel cable is greater than or equal to the steel cable tension warning value F2, a warning is issued and an alarm is sounded. Due to the setting of the warning steel cable 300 and the consideration of the influence of the high-altitude wind load, the safety and stability of the entire unloading platform 200 is further improved, and the risk of overloading is greatly reduced.

[0053] Those skilled in the art should understand that those skilled in the art can implement variations by combining the prior art and the above embodiments, which will not be described in detail here. Such variations do not affect the essential content of the present invention, and will not be described in detail here.

[0054] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solutions of the present invention, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims

1. A transfer and unloading platform, characterized in that: The invention comprises an external wall scaffold (100) and a material unloading platform (200), wherein the material unloading platform (200) comprises three cantilever steel beams (201), wherein the cantilever steel beams (201) pass through the external wall scaffold (100) and extend outward, wherein the cantilever steel beams (201) extending outward are provided with transverse keels (202), wherein the cantilever steel beams (201) and the transverse keels (202) form a truss structure, wherein the truss structure carries a platform plate (203), wherein a tilting chain (204) is provided in the middle of the platform plate (203), and wherein the tilting chain (204) ) are provided above the outer wall scaffold (100) with three track beams (205) parallel to each other, and connecting rods (206) are provided between the three track beams (205) so that the three track beams (205) form a whole, and a discharge box (207) is slidably connected to the track beam (205), and the discharge box (207) slides on the track beam (205), and the ends of the track beams (205) on both sides away from the outer wall scaffold (100) are respectively hingedly connected to hydraulic mechanisms, and the other ends of the hydraulic mechanisms are hingedly connected to the platform plate (203), and the two hydraulic mechanisms are synchronous mechanisms.

2. A transfer and unloading platform according to claim 1, characterized in that: The tilting chain (204) comprises a top plate (2041) and a bottom plate (2042), and three triangular chains (2043) are arranged between the top plate (2041) and the bottom plate (2042), wherein one triangular chain (2043) is arranged at the midline position of the top plate (2041) and the bottom plate (2042), and the other two triangular chains (2043) are symmetrically distributed on both sides along the middle triangular chain (2043), and the midpoints of the three track beams (205) are respectively welded to the positions of the top plate (2041) corresponding to the three triangular chains (2043).

3. A transfer and unloading platform according to claim 1, characterized in that: The unloading box (207) comprises a rectangular unloading plate (2071), a fence (2072) and a pulley (2073). There are six pulleys (2073), two front and rear wheels form a group, and each group of front and rear wheels is correspondingly arranged at the position of a track beam (205). The fence (2072) comprises a fixed fence (2074) and a flip fence (2075). The fixed fence (2074) is arranged on the two sides of the unloading plate (2071) perpendicular to the building and parallel to the farthest side of the building. The flip fence (2075) is arranged on the edge of the unloading plate (2071) which is parallel to the nearest edge of the building. The flip fence (2075) can serve as a safety fence when flipped up, and can serve as a supporting mechanism for the unloading box (207) when flipped down. A limiter (2076) is arranged on the platform plate (203). The limiter (2076) can fix the flipped fence (2072) so that the flipped fence (2072) can play a role of supporting the unloading box (207).

4. A transfer and unloading platform according to claim 3, characterized in that: The stopper (2076) comprises a C-claw (2077) and a base (2078); the opening direction of the C-claw (2077) is 45 degrees upward, opening towards the building, and the width of the opening is 6 / 7 of the diameter of the cross bar of the flip fence (2075); the stopper (2076) is made of aluminum alloy, and there are three stoppers (2076) arranged, corresponding to the positions of three track beams (205) respectively.

5. The transfer and unloading platform according to claim 1, characterized in that: The hydraulic mechanism comprises a hydraulic arm (208). Two hydraulic arms (208) are provided and are respectively hingedly connected to the ends of the track beams (205) on both sides. The two hydraulic arms (208) are raised and lowered synchronously.

6. A safety device for a transfer and unloading platform according to any one of claims 1 to 5, characterized in that: The invention comprises an early warning steel cable (300), wherein two early warning steel cables (300) are provided, one end of which is respectively connected to the ends of cantilevered steel beams (201) on both sides, and the other end is respectively connected to the superstructure. An early warning device is provided on the early warning steel cable (300), and the early warning device comprises an alarm and a force detection device (301), and is also provided with a wind pressure detector (302). The operation mode of the early warning device comprises: The current basic wind pressure w0 is measured by a wind pressure detector (302), and the standard value of the wind load w perpendicular to the building surface is calculated based on the basic wind pressure. k : w k =β z ×μ s ×μ z ×w0, where: β z is the wind vibration coefficient at height z, μ s is the wind load shape coefficient, μ z is the coefficient of wind pressure height variation, w0 is the basic wind pressure; The instantaneous tension detection value F0 of the steel cable is measured by the force detection device (301), and the steel cable tension warning value is F2: F2=0.8F1++0.5w k L, where: The design load value of the steel cable is F1, and L is the length of the cantilever steel beam (201); The warning rule is that when the instantaneous tension detection value F0 of the steel cable is greater than or equal to the steel cable tension warning value F2, a warning is issued and the alarm is sounded.

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