阅读说明：本技术 一种适用于建筑基坑的防尘网升降机构 (Dust screen lifting mechanism suitable for building foundation pit ) 是由 闫新郑 姜兵强 黄广华 王坤 李永增 位俊俊 牟今容 顾鹤伍 郭品华 吴楷 于 2020-11-13 设计创作，主要内容包括：本发明公开了一种适用于建筑基坑的防尘网升降机构,包括：防尘系统、测力系统和牵引系统；防尘系统包括钢丝绳和防尘网,钢丝绳上可拆卸安装有防尘网以遮盖基坑；测力系统包括无线测力计和无线接收机,无线测力计与无线接收机通信连接,无线测力计与钢丝绳相连；升降系统包括立柱、牵引绳和牵引装置；立柱设在基坑的一侧,立柱竖向设置,牵引装置安装在立柱上,牵引绳的一端为自由端,自由端与无线测力计相连,牵引绳的另一端与牵引装置相连；牵引装置工作以回收或释放牵引绳,当牵引绳被回收时,自由端向上移动,防尘网上升,当牵引绳被释放时,自由端向下移动,防尘网下降。本机构可实现防尘网的升降并且能监测钢丝绳的拉力。(The invention discloses a dustproof net lifting mechanism suitable for a building foundation pit, which comprises: a dust prevention system, a force measurement system and a traction system; the dustproof system comprises a steel wire rope and a dustproof net, wherein the dustproof net is detachably mounted on the steel wire rope to cover the foundation pit; the force measuring system comprises a wireless dynamometer and a wireless receiver, the wireless dynamometer is in communication connection with the wireless receiver, and the wireless dynamometer is connected with the steel wire rope; the lifting system comprises an upright post, a traction rope and a traction device; the upright post is arranged on one side of the foundation pit, the upright post is vertically arranged, the traction device is arranged on the upright post, one end of the traction rope is a free end, the free end is connected with the wireless dynamometer, and the other end of the traction rope is connected with the traction device; the traction device works to recover or release the traction rope, when the traction rope is recovered, the free end moves upwards, the dust screen rises, and when the traction rope is released, the free end moves downwards, and the dust screen descends. The mechanism can realize the lifting of the dust screen and monitor the tension of the steel wire rope.)

1. The utility model provides a dust screen elevating system suitable for building foundation ditch, its characterized in that includes: a dust prevention system, a force measurement system and a traction system;

the dustproof system comprises a steel wire rope and a dustproof net, the steel wire rope is suitable for being laid on the foundation pit, and the dustproof net is detachably mounted on the steel wire rope to cover the foundation pit;

the force measuring system comprises a wireless dynamometer and a wireless receiver, the wireless dynamometer is in communication connection with the wireless receiver, and the wireless dynamometer is connected with the steel wire rope;

the lifting system comprises an upright post, a traction rope and a traction device; the upright post is arranged on one side of the foundation pit, the upright post is vertically arranged, the traction device is arranged on the upright post, one end of the traction rope is a free end, the free end is connected with the wireless dynamometer, and the other end of the traction rope is connected with the traction device;

the traction device operates to retract or release the pull cord, the free end moves upward and the dust screen rises when the pull cord is retracted, and the free end moves downward and the dust screen falls when the pull cord is released.

2. The dust screen lifting mechanism suitable for the building foundation pit according to claim 1, wherein the traction device comprises a pulley assembly and a winch;

the pulley assembly is detachably mounted at the top end of the upright post and comprises a ground pulley capable of pivoting around the axis of the pulley assembly; the winch is detachably arranged on one side of the upright post and is positioned below the pulley assembly, and the winch comprises a winding drum capable of rotating around the axis of the winch;

the free end of the traction rope is lower than the pulley, the other end of the traction rope rounds the pulley and is connected with the winding drum, a part of the traction rope is wound on the winding drum, the traction rope is connected with the pulley in an overlapping mode, and the winding drum rotates to recover or release the traction rope.

3. The dust screen lifting mechanism suitable for the building foundation pit as claimed in claim 2, wherein: the pulley assembly comprises two frame plates, the two frame plates are respectively detachably mounted at the top ends of the upright posts, the two frame plates are oppositely arranged and spaced, and the pulley can be pivotally mounted between the two frame plates around a self shaft.

4. The dust screen lifting mechanism suitable for the building foundation pit according to claim 3, wherein: the pulley assembly further comprises an anti-falling plate, the anti-falling plate is arranged between the two frame plates and is connected with one of the frame plates, and the anti-falling plate is located above the part, overlapped with the traction rope, of the pulley.

5. The dust screen lifting mechanism suitable for the building foundation pit according to claim 1, wherein the number of the steel wire ropes is multiple, the plurality of the steel wire ropes are arranged at intervals, the plurality of the dust screens are connected between any two adjacent steel wire ropes, and the plurality of the dust screens are arranged along the length direction of the steel wire ropes;

a plurality of wireless dynamometers and a plurality of lifting systems are respectively arranged on two sides of the foundation pit along the length direction of the steel wire rope, the wireless dynamometers are in one-to-one correspondence with the lifting systems, and the traction ropes in the lifting systems corresponding to the wireless dynamometers are connected;

and two ends of at least one steel wire rope in the length direction are respectively connected with the wireless dynamometer.

6. The dust screen lifting mechanism suitable for the building foundation pit according to claim 1, wherein: the wireless dynamometer is provided with a first connecting end and a second connecting end, the first connecting end and the second connecting end are formed into lifting hooks, lantern rings are respectively arranged on the free ends of the steel wire rope and the traction rope, and the lifting hooks are hooked on the lantern rings.

7. The dust screen lifting mechanism suitable for the building foundation pit according to claim 1, wherein: the stand includes a plurality of sub-stands of arranging along vertical direction, and a plurality of sub-stands can dismantle in proper order and link to each other in order to inject the stand.

8. The dust screen lifting mechanism suitable for the building foundation pit according to claim 7, wherein: the length of the sub-column is L, and L satisfies the following conditions: l is more than or equal to 2m and less than or equal to 3 m.

9. The dust screen lifting mechanism suitable for the building foundation pit according to claim 1, wherein: the wireless receiver is a handheld receiver or a desktop receiver.

10. The dust screen lifting mechanism suitable for the building foundation pit as claimed in claim 5, wherein: the dust screen is configured to be rectangular and has a length M, and M satisfies the following conditions: m is more than or equal to 20M and less than or equal to 30M, the width is N, and N satisfies the following conditions: n is more than or equal to 6m and less than or equal to 9 m; the long side of any dust screen is connected with the steel wire rope adjacent to the dust screen, and the short side of any dust screen is connected with the short side of the dust screen adjacent to the short side.

Technical Field

The invention relates to the field of building construction, in particular to a dustproof net lifting mechanism suitable for a building foundation pit.

Background

At present, the national environmental management is carried out, and dust control in the construction process of the building industry is an important work content of the national environmental management. During construction, dust mainly comes from soil bodies exposed during excavation of a foundation pit, and in order to control dust emission, the surface of the soil body is covered with geotextile or dense mesh net. The steel wire rope is oppositely pulled above the foundation pit, the dustproof net is fixed on the steel wire rope, and the dustproof noise reduction shed is built in such a way, so that a novel foundation pit dustproof noise reduction measure is provided. The steel wire rope for the dustproof noise reduction shed of the foundation pit in the prior art is fixed and does not have a lifting function. The disadvantage results in difficult fixing, overhauling and replacing of the steel wire rope, and difficult realization of recycling. In addition, in rainy and snowy weather, the load on the dust screen is increased rapidly, the stress of the net hanging steel wire rope is increased rapidly, and the steel wire rope is likely to break if no measures are taken, so that the safety of personnel in the foundation pit is endangered.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention aims to provide a dustproof net lifting mechanism suitable for a building foundation pit.

The technical scheme of the invention is as follows: the utility model provides a dust screen elevating system suitable for building foundation ditch, includes: a dust prevention system, a force measurement system and a traction system; the dustproof system comprises a steel wire rope and a dustproof net, the steel wire rope is suitable for being laid on the foundation pit, and the dustproof net is detachably mounted on the steel wire rope to cover the foundation pit;

the force measuring system comprises a wireless dynamometer and a wireless receiver, the wireless dynamometer is in communication connection with the wireless receiver, and the wireless dynamometer is connected with the steel wire rope;

the lifting system comprises an upright post, a traction rope and a traction device; the upright post is arranged on one side of the foundation pit, the upright post is vertically arranged, the traction device is arranged on the upright post, one end of the traction rope is a free end, the free end is connected with the wireless dynamometer, and the other end of the traction rope is connected with the traction device;

the traction device operates to retract or release the pull cord, the free end moves upward and the dust screen rises when the pull cord is retracted, and the free end moves downward and the dust screen falls when the pull cord is released.

Further, the traction device comprises a pulley assembly and a winch; the pulley assembly is detachably mounted at the top end of the upright post and comprises a ground pulley capable of pivoting around the axis of the pulley assembly; the winch is detachably arranged on one side of the upright post and is positioned below the pulley assembly, and the winch comprises a winding drum capable of rotating around the axis of the winch; the free end of the traction rope is lower than the pulley, the other end of the traction rope rounds the pulley and is connected with the winding drum, a part of the traction rope is wound on the winding drum, the traction rope is connected with the pulley in an overlapping mode, and the winding drum rotates to recover or release the traction rope.

Further, the pulley assembly comprises two frame plates, the two frame plates are respectively detachably mounted at the top ends of the upright posts, the two frame plates are oppositely arranged and spaced, and the pulley can be pivotally mounted between the two frame plates around a self shaft.

Further, the pulley assembly further comprises an anti-falling plate, the anti-falling plate is arranged between the two frame plates and connected with one of the frame plates, and the anti-falling plate is located above the part, overlapped with the traction rope, of the pulley.

Furthermore, the number of the steel wire ropes is multiple, the steel wire ropes are arranged at intervals, a plurality of dust screens are connected between any two adjacent steel wire ropes, and the dust screens are arranged along the length direction of the steel wire ropes; a plurality of wireless dynamometers and a plurality of lifting systems are respectively arranged on two sides of the foundation pit along the length direction of the steel wire rope, the wireless dynamometers are in one-to-one correspondence with the lifting systems, and the traction ropes in the lifting systems corresponding to the wireless dynamometers are connected; and two ends of at least one steel wire rope in the length direction are respectively connected with the wireless dynamometer.

Further, the wireless cable is provided with a first connecting end and a second connecting end, the first connecting end and the second connecting end are formed into lifting hooks, lantern rings are respectively arranged on the free ends of the steel wire rope and the traction rope, and the lifting hooks are hooked on the lantern rings.

Further, the stand includes a plurality of sub-stands of arranging along vertical direction, and a plurality of sub-stands can dismantle in proper order and link to each other in order to inject the stand.

Further, the length of the sub-column is L, and L satisfies: l is more than or equal to 2m and less than or equal to 3 m.

Further, the wireless receiver is a handheld receiver or a desktop receiver.

Further, the dust screen is configured to be rectangular, and has a length M, and M satisfies: m is more than or equal to 20M and less than or equal to 30M, the width is N, and N satisfies the following conditions: n is more than or equal to 6m and less than or equal to 9 m; the long side of any dust screen is connected with the steel wire rope adjacent to the dust screen, and the short side of any dust screen is connected with the short side of the dust screen adjacent to the short side.

Compared with the prior art, the invention has the following beneficial effects: when the haulage rope is retrieved, free end rebound, free end drive wireless dynamometer rebound, and wireless dynamometer drives wire rope rebound, and then drives the dust screen and rise, can promote the inside operation space of foundation ditch from this, avoids the protection network to produce harmful effects to the construction. When the haulage rope was released, the free end moves down, and the free end moves down along with wireless dynamometer, and wireless dynamometer moves down along with wire rope, and the dust screen descends, is convenient for change adjustment dust screen from this and reduces wire rope's pulling force. Because this mechanism has still set up the dynamometry system, consequently can monitor wire rope's pulling force, the staff can in time adjust the height of dust screen through traction system according to the pulling force value, avoids the too big fracture of wire rope pulling force, ensures foundation ditch and foundation ditch interior personnel's safety.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts:

FIG. 1 is a schematic view of a dust screen lifting mechanism of the present invention;

FIG. 2 is a schematic view of the dust screen of the present invention being lowered;

FIG. 3 is a schematic view of the dust screen of the present invention ascending;

figure 4 is a schematic view of the sheave assembly of the present invention;

FIG. 5 is a schematic view of a pull-cord location of the present invention;

FIG. 6 is a schematic view of the connection of the mast of the present invention to the mounting portion;

FIG. 7 is a schematic view of the winch of the present invention;

figure 8 is a schematic view of a wireless dynamometer of the present invention;

FIG. 9 is a schematic diagram of a handheld receiver of the present invention;

fig. 10 is a schematic diagram of a desktop receiver of the present invention.

Reference numerals:

1. a foundation pit; 2. a wire rope; 3. a dust screen; 4. a column; 5. a sheave assembly; 6. a hauling rope; 7. a winch; 8. a pulley; 9. a sub-column; 10. a frame plate; 11. an anti-drop plate; 12. an installation part; 13. a wireless dynamometer; 14. a first connection end; 15. a second connection end; 16. a wireless receiver.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

A mechanism for lifting a dust screen 3, which includes a dust prevention system, a force measuring system, and a traction system, for use in a foundation pit 1 for a building according to an embodiment of the present invention will be described with reference to fig. 1 to 10 of the drawings.

As shown in fig. 1, the dustproof system comprises a steel wire rope 2 and a dustproof net 3, the steel wire rope 2 is suitable for being laid on a foundation pit 1, the dustproof net 3 is detachably mounted on the steel wire rope 2 to cover the foundation pit 1, and the dustproof net 3 is detachably connected with the steel wire rope 2, so that the dustproof system is convenient to disassemble and assemble.

In this embodiment, wire rope 2 is a plurality of, and a plurality of wire rope 2 intervals are arranged, is connected with a plurality of dust screens 3 between two arbitrary adjacent wire rope 2, and a plurality of dust screens 3 arrange along wire rope 2's length direction.

Specifically, the dust screen 3 is configured in a rectangular shape, and has a length M that satisfies: m is more than or equal to 20M and less than or equal to 30M, the width is N, and N satisfies the following conditions: n is more than or equal to 6m and less than or equal to 9 m. In practical application, after dust screen 3 designs into the rectangle, need further inject dust screen 3's size, if the undersize that dust screen 3 did, then need to use a lot of dust screens 3 in the follow-up construction to can increase the installation procedure, lead to the installation loaded down with trivial details, and if dust screen 3 did too big, then inconvenient processing also inconveniently transports or adjusts the position in the installation, because the inventor finds in actual research, satisfies when dust screen 3's length M: m is more than or equal to 20M and less than or equal to 30M, and the width N satisfies the following conditions: when N is more than or equal to 6m and less than or equal to 9m, the processing and the installation are convenient, and the practicability is good. For example, M may be 20M, 21M, 22M, 23M, 24M, 25M, 26M, 27M, 28M, 29M, 30M, etc., and N may be 6M, 6.5M, 7M, 7.5M, 8M, 8.5M, 9M, etc.

The dust screen 3 is modularly designed, is convenient to disassemble and can be repeatedly used, when the dust screen 3 is damaged, the damaged screen block can be replaced, the replacement range is reduced, and the cost is saved.

During the specific assembly, the long side of any dust screen 3 is connected with the adjacent steel wire rope 2 through the spring fastener, and the short side of any dust screen 3 is connected with the short side of the adjacent dust screen 3 through the binding belt.

As shown in fig. 5, 8 and 9, the force measuring system comprises a wireless force gauge 13 and a wireless receiver 16, wherein the wireless force gauge 13 is connected with the wireless receiver 16 in a communication way, and the wireless force gauge 13 is connected with the steel wire rope 2.

As shown in fig. 1, 2 and 3, the lifting system comprises a column 4, a traction rope 6 and a traction device; stand 4 establishes in one side of foundation ditch 1, and the vertical setting of stand 4, draw gear install on stand 4, and the one end of haulage rope 6 is the free end, and the free end links to each other with wireless dynamometer 13, and the other end of haulage rope 6 links to each other with draw gear.

Particularly, the staff is through control draw gear work, recoverable or release haulage rope 6, when haulage rope 6 was retrieved, free end upward movement, free end drive wireless dynamometer 13 upward movement, and wireless dynamometer 13 drives wire rope 2 upward movement, and then drives dust screen 3 and rises, can promote the inside working space of foundation ditch 1 from this, avoids the protection network to produce harmful effects to the construction.

When the haulage rope 6 is released, the free end moves downwards along with the wireless dynamometer 13, the wireless dynamometer 13 moves downwards along with the steel wire rope 2, and the dust screen 3 descends, so that the dust screen 3 can be conveniently replaced and adjusted and the tension of the steel wire rope 2 is reduced.

Because this mechanism has still set up the dynamometry system, consequently can monitor wire rope 2's pulling force, the staff can in time adjust the height of dust screen 3 through traction system according to the pulling force value, avoids wire rope 2 pulling force too big and fracture, ensures foundation ditch 1 and the interior personnel's of foundation ditch 1 safety.

In this embodiment, as shown in fig. 1, 2 and 3, the traction device comprises a sheave assembly 5 and a winch 7; the top end of the upright post 4 is detachably provided with a pulley assembly 5, and the pulley assembly 5 comprises a pulley 8 capable of pivoting around the axis of the pulley; the winch 7 is detachably arranged at one side of the upright post 4 and is positioned below the pulley assembly 5, and the winch 7 comprises a winding drum capable of rotating around the axis of the winch; the free end of the pulling rope 6 is lower than the pulley 8, the other end of the pulling rope 6 rounds the pulley 8 to be connected with the winding drum, wherein one part of the pulling rope 6 is wound on the winding drum, the pulling rope 6 is lapped on the pulley 8, and the winding drum rotates to recover or release the pulling rope 6. The pulley component 5 and the winch 7 are both detachably mounted and easy to assemble and disassemble.

In practical application, as shown in fig. 7, the winch 7 can be a winch 7 with a self-locking function, so that the self-locking of the hauling rope 6 can be realized, and after the adjustment is finished, the automatic fixing of the hauling rope 6 can be realized, so that the use is convenient.

In this embodiment, as shown in fig. 4, the pulley assembly 5 includes two frame plates 10, the two frame plates 10 are detachably mounted on the top ends of the uprights 4, the two frame plates 10 are oppositely arranged and spaced apart, and the pulley 8 is pivotally mounted between the two frame plates 10 around its own axis.

Further, pulley assembly 5 still includes anticreep board 11, and anticreep board 11 locates between two frame boards 10 and links to each other with one of them frame board 10, and anticreep board 11 is located the overlap joint of haulage rope 6 and is in the part top of pulley 8. The anti-drop plate 11 can prevent the traction rope 6 from being separated from the pulley 8, and the use safety is improved.

In the present embodiment, as shown in fig. 2 and 3; a plurality of wireless dynamometers 13 and a plurality of lifting systems are respectively arranged on two sides of the foundation pit 1 along the length direction of the steel wire rope 2, the wireless dynamometers 13 correspond to the lifting systems one by one, and a traction rope 6 in the lifting system corresponding to each wireless dynamometer 13 is connected; both ends of at least one wire rope 2 in the length direction are connected with wireless dynamometers 13 respectively. That is, for the dustproof system, there is at least one force point at both ends of the dustproof system, thereby being beneficial to make the force of the dustproof net 3 system uniform so as to be convenient for ascending or descending. It will be appreciated that the greater the number of wire ropes 2 corresponding to the wireless dynamometer 13 and the hoist system, the more evenly the force is applied to the dust protection system and the easier it is to raise or lower itself.

In this embodiment, as shown in fig. 5 and 8, the wireless dynamometer 13 has a first connection end 14 and a second connection end 15, the first connection end 14 and the second connection end 15 are configured as a hook, and the free ends of the wire rope 2 and the traction rope 6 are respectively provided with a loop on which the hook is hooked.

In this embodiment, as shown in fig. 9 and 10, the wireless receiver 16 is a handheld receiver or a desktop receiver.

In this embodiment, the stand 4 includes a plurality of sub-stands 9 of arranging along vertical direction, and a plurality of sub-stands 9 can dismantle in proper order and link to each other in order to inject stand 4, that is to say, stand 4 is actually linked up by a plurality of sub-stands 9 and is injectd, can use the sub-stand 9 of different quantity in order to splice out not co-altitude stand 4 according to actual demand from this to can realize the module design of stand 4. Specifically, the sub-columns 9 can be connected by bolts, and the connection form is simple and convenient to realize.

In this embodiment, the length of the sub-column 9 is L, and L satisfies: l is more than or equal to 2m and less than or equal to 3m, so that the sub-columns 9 are not too long and inconvenient to process, and are not too short, so that more sub-columns 9 are needed when the columns 44 are spliced, and the installation efficiency is influenced. It is understood that when L is 2m ≦ L ≦ 3m, L may be more than one, for example, L may be 2m, 2.1m, 2.2m, 2.3m, 2.4m, 2.5m, 2.6m, 2.7m, 2.8m, 2.9m, 3m, etc., which is not limited by the present invention.

In this embodiment, as shown in fig. 6, the edge of the foundation pit 1 is provided with a mounting portion 12, the upright post 4 is detachably mounted on the mounting portion 12, specifically, the mounting portion 12 may be formed by pouring concrete, and the upright post 4 and the mounting portion 12 may be connected by an earth anchor bolt.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.