CN214456400U

CN214456400U - Suspension device for foundation pit construction

Info

Publication number: CN214456400U
Application number: CN202022790936.2U
Authority: CN
Inventors: 陈凯; 龙广山; 郑文豪; 胡俊; 张子辛
Original assignee: China Railway 11th Bureau Group Urban Rail Engineering Co Ltd
Current assignee: China Railway 11th Bureau Group Urban Rail Engineering Co Ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-10-22
Anticipated expiration: 2030-11-27

Abstract

The utility model discloses a suspension device for foundation pit construction, which comprises a suspension support, a suspension mechanism fixed on the suspension support and a suspension frame matched with the suspension mechanism; the suspension mechanism comprises a motor, a driving wheel connected with the motor, and a first lifting belt and a second lifting belt which are fixed on the driving wheel; first lifting belt and second lifting belt respectively through first belt pulley and second belt pulley with a plurality of fixed blocks on the frame of suspending in midair are connected, the utility model discloses can set up and use at foundation ditch top unilateral ground, use the buffering subassembly, improve suspension device's safety and stability, the mechanical structure main part does not go up and down along with the material that transports, is difficult for getting into the dust grit, is fit for using in the constrictive foundation ditch of environment.

Description

Suspension device for foundation pit construction

Technical Field

The utility model belongs to the technical field of suspend in midair the protection, more specifically relates to a hanging device for foundation ditch construction.

Background

In the building engineering construction, the foundation ditch is the soil pit that excavates according to basement elevation and basic plane size at the architectural design position, when being under construction in the foundation ditch, need set up the suspender at the foundation ditch top and transport and carry construction material, because there is the operation personnel construction bottom the foundation ditch, and the foundation ditch degree of depth of every engineering is all inequality, and suspender has good stable security performance to can hover according to the foundation ditch degree of depth, it is significant to carrying out normal foundation ditch operation.

At present, a plurality of suspension devices suitable for a foundation pit are available on the market, the existing suspension devices mainly adopt that support structures are arranged on two sides of the ground surface of the foundation pit, a support suspends a platform for conveying materials in a suspension mode, and then a motor is used as motive power to drive transmission structures such as a pulley block, a gear set or a pull rod to suspend the platform in a suspension mode to lift, so that the purpose of conveying building materials inside the foundation pit is achieved.

The existing foundation pit suspension device mainly has the following defects: (1) although the suspension device can be suspended to adapt to foundation pits with different depths, the material placing position is too close to the mechanical structure of the suspension device and is lifted along with the suspension material, so that the problems of mechanical structure failure and the like easily occur after long-term use in the foundation pit construction environment with more dust and broken soil and stones, the potential safety hazard exists, the maintenance cost is high, and the frequent material loading and unloading are easy to collide during construction to damage the mechanical structure; (2) the device dead weight is great, requires high to power, need all establish bearing structure or use at the foundation ditch lateral wall setting in the both sides at foundation ditch top, and it is high to fixed point firmness and bearing capacity, unsuitable narrow environment and the construction of low capacity foundation ditch.

SUMMERY OF THE UTILITY MODEL

To the above defect or the improvement demand of prior art, the utility model provides a suspension device for foundation ditch construction, this device adopts mechanics stable in structure's triangle-shaped to suspend the support in midair, can set up the ground at foundation ditch top unilateral, it drives the action wheel as the power supply to set up the motor at the support top of suspending in midair, it suspends frame elevating movement in midair to drive through many lifting straps and a plurality of belt pulleys, the cooperation uses flexible pad and buffer block to provide the buffering for the device, suspension device's safety and stability have, the device has and can install and use in the foundation ditch unilateral, the difficult effect that gets into the dust grit of stable in structure, be fit for using in the constrictive foundation ditch of environment.

In order to achieve the above object, the present invention provides a suspension device for foundation pit construction, which comprises a suspension support, a suspension mechanism fixed on the suspension support, and a suspension frame used in cooperation with the suspension mechanism;

the suspension support comprises a horizontally arranged base and a first support vertically arranged on the base, a third support with a drawer-shaped structure is arranged on one side of the first support, and a stay cable is arranged on the other side of the third support and is also connected with the base;

the suspension mechanism comprises a motor arranged in the second support, a driving wheel connected with the motor, and a first lifting belt and a second lifting belt which are fixed on the driving wheel;

the suspension frame is further provided with a plurality of fixing blocks, and the fixing blocks are fixedly connected with the first lifting belt and the second lifting belt respectively.

Furthermore, a plurality of third supports and buffer assemblies are arranged at the bottoms of the second supports, and the buffer assemblies are arranged at the tail ends of the third supports;

the fixed block is further provided with a buffer block, and the buffer block is in contact with the buffer assembly to achieve buffering.

Further, the buffer assembly comprises a protection box with a vertically downward opening, and an elastic piece and a buffer plate which are positioned in the protection box;

the inner wall of the protection box is provided with a plurality of sliding grooves, and the buffer plate is embedded with the sliding grooves and is in contact with the elastic piece.

Furthermore, a first belt pulley and a second belt pulley are respectively arranged on the plurality of third brackets;

the first lifting belt is tensioned through the first belt pulley and is finally fixed on the fixing block;

and the second lifting belt is tensioned by the second belt pulley and is finally fixed on the fixing block.

Furthermore, the suspension support also comprises a rotating shaft connected with the motor and a bearing fixing block used for supporting the rotating shaft;

the rotating shaft is connected with the motor and the driving wheel;

the bearing fixing block is arranged in the second support.

Further, the surface of the suspension frame is also provided with a flexible pad.

Furthermore, the fixed block is provided with a locking bolt, and the locking bolt is connected with the fixed block and the suspension frame.

Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:

1. the utility model discloses a belt pulley and buffer unit set up on the support that suspends in midair at foundation ditch top, and the motor is inside the second support as the power supply protection, only the lifting belt drives and suspends a elevating movement in midair, device mechanical motion structure is difficult for taking place the card and pause the pollution in the more construction environment of grit dust, also be fit for the constrictive foundation ditch construction of environment, during the suspension device operation, loading and unloading construction material is difficult to collide top power structure to safety risk and maintenance cost have been reduced.

2. The utility model discloses a suspend in midair the support and adopt triangular stable mechanics structure, can set up the ground at foundation ditch top unilateral, need not to span the foundation ditch and establish the strong point, the base as main bearing structure enlarged with the area of ground contact, it is not high to the foundation ditch earth's surface quality requirement.

Drawings

Fig. 1 is a schematic structural diagram of a suspension device for foundation pit construction according to an embodiment of the present invention;

fig. 2 is a half-sectional view of a suspension device for foundation pit construction according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a suspension device for foundation pit construction according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of a suspension device buffer assembly for foundation pit construction according to an embodiment of the present invention.

In all the figures, the same reference numerals denote the same features, in particular: the device comprises a suspension support 1, a suspension mechanism 2, a suspension frame 3, a base 11, a stay cable 12, a first support 13, a second support 14, a third support 15, a buffer component 16, a motor 21, a rotating shaft 22, a second lifting belt 23, a driving wheel 24, a second belt pulley 25, a first lifting belt 26, a first belt pulley 27, a fixing block 31, a locking bolt 32, a flexible cushion 33, a buffer block 34, an elastic member 161, a protection box 162, a buffer plate 163 and a chute 164.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1-4, the present invention provides a suspension device for foundation pit construction, the device includes a suspension support 1, a suspension mechanism 2 and a suspension frame 3, wherein the suspension support 1 is used for supporting a load, and is disposed on the ground surface of the top of the foundation pit, the suspension mechanism 2 has functions of lifting and stabilizing at a certain height, the suspension structure 2 includes a motor 21 for providing power, and a second belt pulley 25 and a first belt pulley 27 for tensioning and guiding, and one end of the first lifting belt 26 and one end of the second lifting belt 23 are fixed on a driving wheel 24, extend through the first belt pulley 27 and the second belt pulley 25 respectively, and then the other end is fixed on both ends of the suspension frame 3 respectively, when the driving wheel 24 rotates forward and backward under the driving of the motor, the first lifting belt 26 and the second lifting belt 23 are rolled back or released from the driving wheel 24, so as to achieve the function of controlling the vertical movement of the suspension frame 3, the device can control motor 21 and drive and suspend frame 3 and rise or descend in midair, and hover according to the degree of depth of different foundation pits, reach the purpose of foundation pit construction operation and transporting construction material, the device's main part bearing structure suspends one side that support 1 only need install foundation pit top earth's surface in midair, device dead weight is little itself, the movable mechanical structure who suspends in midair all fixes on suspending support 1 in midair, only suspend frame 3 in midair, first lifting strap 26 and second lifting strap 23 up-and-down motion, be difficult to the mistake and touch suspension motion structure when the construction material that loading and unloading transported, can not cause the potential safety hazard, the maintenance cost of long-term use device has also been reduced.

Further, as shown in fig. 1, 2 and 4, the suspension support 1 of the suspension device of the present invention comprises a base 11, a stay cable 12, a first bracket 13, a second bracket 14, a third bracket 15 and a buffer assembly 16, and the suspension mechanism is fixed on the second bracket 14 and the third bracket 15, wherein the base 11 and the first bracket 13 are plate-shaped, the base 11 is horizontally disposed on the ground at the side of the top of the foundation pit and can be fixed by using embedded bolts, the first bracket 13 is vertically disposed on the base 11, preferably, can be fixed by welding, and the welding position is preferably vertically disposed at a deviated position from the center of the base 11 to the foundation pit, the stay cable 12 can be fixed by using bolts, one end of the stay cable is fixed on the base 11, the fixing point is located at a side of the first bracket 13 away from the foundation pit, the other end of the stay cable 12 can be fixed at the top area of the first bracket 13 in the same manner, so far, the base 11, the stay cable 12 and the first support 13 form a triangular shape, when the first support 13 is biased to the foundation pit, the stay cable 12 can provide a pulling force, the base 11 provides a main supporting force for the device, further, a second support 14 is further arranged at the top area of the first support 13, the second support 14 is a horizontal drawer-shaped structure, the opening of the second support 14 points to the center line direction of the foundation pit, preferably, the second support 14 is also fixed at the top of the first support 13 in a welding mode and is positioned at the other side of the fixing surface of the stay cable 12, the second support 14 mainly serves to fix the suspension mechanism 2, further, a third support 15 and a buffer assembly 16 are further arranged at the bottom of the second support 14, the third support 15 is vertically arranged at the bottom of the second support 14, a buffer assembly 16 is fixed at the tail end of the third support 15, and the buffer assembly 16 comprises an elastic member 161, a spring, and a spring, wherein the spring is arranged at the spring, and the spring is arranged at the second support 14, and the second support 14 is arranged at the top of the second support 14 is arranged at the top of the second support 14, and the top of the second support 14 is arranged at the top of the second support 14 is arranged at the top of the second support 14, and the top of the bottom of the top, The suspension support comprises a protection box 162, a buffer plate 163 and a chute 164, wherein the protection box 162 is a box-packed structure with a vertical downward opening and is used for protecting the internal structure of the protection box, one or more vertical chutes 164 and a vertically arranged elastic member 161 are arranged on the inner wall of the protection box 162, the buffer plate 163 is embedded with the chute 164 and can slide along the vertical direction of the inner wall of the protection box 162, when the buffer plate 163 receives an upward extrusion force, the buffer plate is displaced and extrudes and compresses the elastic member 161, and finally the elastic member 161 pushes the buffer plate 163 to rebound downwards to form a complete buffering process, when the suspension device normally operates to lift the suspension frame 3 to the ground of a foundation pit, in order to prevent the suspension frame 3 from being lifted too fast or the suspension frame from being not stopped timely due to misoperation of personnel, the buffer component 16 is in contact with the suspension frame 3 and absorbs kinetic energy to play a role in buffering role so as to prevent safety accidents, the suspension support 1 of the suspension component device is fixed on the ground on one side of the top of the foundation pit by using a base 11, and set up steamer tray column structure and be used for fixed suspension mechanism 2, for the suspension mechanism who provides power and take place mechanical motion provides effective protection, can adapt to the more foundation ditch construction environment of grit dust, stay cable 12 has further improved device stability, and the firm mechanical structure of the device helps realizing the stable suspension construction operation of long-time in foundation ditch top unilateral.

Further, as shown in fig. 2, 3 and 4, the suspension mechanism 2 includes a motor 21, a rotating shaft 22, a second lifting belt 23, a driving wheel 24, a second belt pulley 25, a first lifting belt 26, a first belt pulley 27 and a bearing fixing block 28, wherein the motor 21 is a power source of the suspension device, preferably a servo motor, the motor 21, the rotating shaft 22 and the bearing fixing block 28 are fixedly installed in a drawer-shaped space inside the second bracket 14, the rotating shaft 22 is fixed by the bearing fixing block 28, one end of the rotating shaft is connected to the motor 21, the other end of the rotating shaft is connected to the driving wheel 24, in addition, two third brackets 15 installed on the second bracket 14 are respectively fixed with the first belt pulley 27 and the second belt pulley 25, one end of the first lifting belt 26 and one end of the second lifting belt 23 are fixed on the driving wheel 24 and are not in parallel contact with each other, the other ends of the first belt pulley 27 and the second belt pulley 25 are respectively tensioned by the outer surfaces of the first belt pulley 27 and the second belt pulley 25, finally, the centers of the fixed blocks 31 fixed at the two ends of the suspension frame 3 are fixed, when the driving wheel 24 rotates forwards and backwards, the first lifting belt 26 and the second lifting belt 23 can be synchronously retracted, and the first lifting belt 26 and the second lifting belt 23 respectively move up and down under the tensioning and guiding of the first belt pulley 27 and the second belt pulley 25, so as to pull the suspension frame 3 to move vertically up and down, preferably, the suspension frame 3 can adopt a U-shaped groove structure, and the two ends of the fixed block 31 are fixed on the suspension frame 3 through the locking bolts 32, particularly, the fixed blocks 31, the first lifting belt 26 and the second lifting belt 23 should be matched according to the number of the first belt pulley 27 and the second belt pulley 25, and the fixed points of the fixed blocks 31 should be symmetrically distributed on the suspension frame 3, so as to prevent the suspension frame 3 from losing balance, when the suspension device transports the material to the height required by the foundation pit, the construction material can be loaded and unloaded by opening the locking bolt 32 according to actual needs, further, a flexible cushion 33 is further arranged on the inner side of the suspension frame 3, the flexible cushion 33 is preferably a rubber cushion, the buffering effect is achieved when the construction material is loaded and unloaded, further, a buffer block 34 is further arranged on one side, close to the first support 13, of the fixed block 31, the buffer block 34 can be accommodated into the protection box 162 in size, when the driving wheel 24 drives the suspension frame 3 to move upwards, the suspension frame 3 rises to be close to the buffer assembly 16, if the construction personnel at an excessively high speed do not stop the rising operation in time, the buffer block 34 is embedded into the protection box 162 and extrudes the buffer plate 163 upwards, so that the elastic element 161 is compressed, and the effect of buffering and absorbing kinetic energy is achieved, preferably, the buffer block 34 can be made of elastic material, and the number of the buffer assembly 34 is consistent with the number of the buffer assembly 16, this suspension device adopts motor 21 as the power supply, receive and release suspension frame 3 on being fixed in action wheel 24 with many drawstrings, it can guarantee that the drawstring receive and releases speed unanimity to set up an action wheel 24, be favorable to keeping suspension frame 3 balanced stable, and buffer block 31 and buffer component 16 cooperate the use and further improved suspension frame 3's stability, mechanical motion structure in the suspension device mainly distributes on second support 14 and the third support 15, can not follow suspension frame 3 and rise the decline motion promptly, help in the constrictive foundation ditch operation in space, difficult collision suspension device's key structure when carrying out construction material loading and unloading, can improve life, major structure sets up and also can prevent in the surrounding environment that sand lime dirt too much falls into mechanical structure at the foundation ditch top, has reduced the maintenance cost and has taken place the hidden danger that the card became invalid.

The utility model relates to a theory of operation that is used for a hanging device of foundation ditch construction as follows: this hanging device adopts mechanics stable in structure's triangle-shaped to suspend support in midair, can set up the ground at foundation ditch top unilateral, further set up the motor on suspending the second support at support top in midair and drive the action wheel as the power supply, drive through many lifting straps and a plurality of belt pulleys that set up on the third support and suspend frame elevating movement in midair, still be provided with flexible pad and buffer block on suspending the frame in midair, buffer block cooperation buffer block on the third support provides the buffering for the device, hanging device's safety and stability have, the device has and can install and use at the foundation ditch unilateral, the difficult effect that gets into the dust grit of stable in structure, be fit for using at the constrictive foundation ditch of environment.

It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims

1. The suspension device for foundation pit construction is characterized by comprising a suspension support (1), a suspension mechanism (2) fixed on the suspension support (1) and a suspension frame (3) matched with the suspension mechanism (2) for use;

the suspension support (1) comprises a horizontally arranged base (11) and a first support (13) vertically arranged on the base (11), one side of the first support (13) is provided with a third support (15) with a drawer-shaped structure, the other side of the first support is provided with a stay cable (12), and the stay cable (12) is also connected with the base (11);

the suspension mechanism (2) comprises a motor (21) arranged in the second support (14), a driving wheel (24) connected with the motor (21), and a first lifting belt (26) and a second lifting belt (23) which are fixed on the driving wheel (24);

the suspension rack (3) is further provided with a plurality of fixing blocks (31), and the fixing blocks (31) are fixedly connected with the first lifting belt (26) and the second lifting belt (23) respectively.

2. The suspension device for foundation pit construction according to claim 1, wherein the bottom of the second support (14) is further provided with a plurality of third supports (15) and a buffer assembly (16), and the buffer assembly (16) is arranged at the tail end of the third supports (15);

the fixed block (31) is further provided with a buffer block (34), and the buffer block (34) is in contact with the buffer component (16) to achieve buffering.

3. The suspension device for foundation pit construction according to claim 2, wherein the buffer assembly (16) comprises a protection box (162) with an opening vertically downward, and an elastic member (161) and a buffer plate (163) positioned inside;

the inner wall of the protection box (162) is provided with a plurality of sliding grooves (164), and the buffer plate (163) is embedded with the sliding grooves (164) and is contacted with the elastic piece (161).

4. A suspension device for foundation pit construction according to claim 2 or 3, wherein the plurality of third brackets (15) are respectively provided with a first pulley (27) and a second pulley (25);

the first lifting belt (26) is tensioned through the first belt pulley (27) and is finally fixed on the fixing block (31);

the second lifting belt (23) is tensioned by the second belt pulley (25) and is finally fixed on the fixing block (31).

5. The suspension device for foundation pit construction according to claim 1, 2 or 3, wherein the suspension support (1) further comprises a rotating shaft (22) connected with the motor (21) and a bearing fixing block (28) for supporting the rotating shaft;

the rotating shaft (22) is connected with the motor (21) and the driving wheel (24);

the bearing fixing block (28) is arranged in the second bracket (14).

6. A suspension device for foundation pit construction according to claim 1, 2 or 3, characterized in that the suspension bracket (3) surface is further provided with a flexible pad (33).

7. The suspension device for foundation pit construction according to claim 6, wherein the fixing block (31) is provided with a locking bolt (32), and the locking bolt (32) connects the fixing block (31) and the suspension bracket (3).