CN104671135B - Safety cradle for construction engineering - Google Patents

Abstract

The present invention relates to a safety cradle for construction engineering, comprising a support frame and a rotating drum, wherein the rotating drum is connected to a driving mechanism, a safety rope and a safety hook are provided on the rotating drum, a first gear is provided at both ends of the rotating drum, a transmission shaft is provided on the lower side of the rotating drum, a second gear is provided at both ends of the transmission shaft, the first and second gears are connected by a chain, a turbine is provided in the middle of the transmission shaft and a worm is provided on the lower side of the turbine, a rotating handle is provided at one end of the worm, a lug is provided at the other end of the worm, a check pin is provided next to the lug, the check pin is installed on the upper side of the support table of the mounting seat, and one end of the check pin is connected to the third hinge of the mounting seat. In the above technical solution, by providing the cooperation of the check pin and the lug, the worm is prevented from rotating clockwise, the mud bucket is prevented from falling suddenly, and the occurrence of safety accidents is avoided.

Description

Safety cradle for construction engineering

technical field

The invention relates to the field of construction engineering, in particular to a safety cradle for construction engineering.

Background technique

Manual excavation of piles has the advantages of low cost and no restrictions on construction sites, and is still widely used in construction projects. Manually excavating piles is generally in a group of two people, one person excavates in the pile hole, and one person lifts and dumps the excavated soil on the upper part of the ground, and the lifting generally uses a cradle for operation. The cradle generally includes a triangular support frame and a rotating drum set on the supporting frame. A safety rope is wound on the rotating drum, and a safety hook is set at one end of the safety rope. The mud bucket filled with soil is hung by the safety hook and then rotated to lift the rotating drum. . The traditional support frame is integrally welded by steel, its shape cannot be changed, its weight and volume are large, and it is inconvenient to manually move and stack. In addition, the traditional cradle is generally equipped with a rotating handle at one end of the drum. When operating, people need to turn the handle from one end of the cradle, which will easily make the cradle unbalanced. When the mud bucket is lifted to the pile hole, one hand needs to hold Hold the handle to prevent the drum from reversing, hold the mud bucket with the other hand, and then remove the mud bucket with both hands. In this mode of operation, the posture of the construction workers is extremely awkward, and the hands holding the mud bucket or the rotating drum are easy to slip off, causing the mud in the mud bucket to shake out, or the mud bucket to fall, causing safety accidents, especially when the pile hole diameter is large. , the extension length of the arm is limited at this time.

Contents of the invention

The object of the present invention is to provide a safety cradle for construction engineering, which can effectively solve the above problems and prevent safety accidents caused by the falling of the mud bucket.

To achieve the above object, the present invention adopts the following technical solutions:

A safety cradle for construction engineering, which is characterized in that it includes a support frame and a rotating drum mounted on the support frame, the rotating drum is connected with a driving mechanism, a safety rope is wound on the rotating drum, and a safety hook is provided at one end of the safety rope , the two ends of the rotating cylinder extend to the outside of the mounting seat and are respectively provided with the first gear, the lower side of the rotating cylinder is provided with a transmission shaft parallel to it, the two ends of the transmission shaft are fixed on the mounting seat in rotation, and the two ends of the transmission shaft Extending to the outside of the mounting seat and setting the second gear respectively, the first and second gears are connected by a chain, the middle part of the transmission shaft is provided with a worm gear and the lower side of the worm gear is provided with a worm, and the worm is rotated and installed on the mounting base. The worm gear and the worm constitute Drive fit, one end of the worm is provided with a rotating handle, the other end of the worm is provided with a lug, and a check pin is provided on the side of the lug, and the check pin is installed on the upper side of the support table of the mounting base, and one end of the check pin is connected to the second end of the mounting base. Three hinged connections and the hinged shafts that constitute the third hinged connection are arranged parallel to the axial direction of the worm. The lower side of the support table is turned to the upper side of the support table to avoid the avoidance position. The second is that the check pin is arranged to fit the support table, and the end of the check pin extends to the outer side of the support table to the lug on the worm. A non-return position that prevents rotation from the side of the support table to the underside of the support table.

In the above technical solution, through the cooperation of the non-return pin and the lug, the reverse rotation of the worm is prevented, the sudden drop of the mud bucket is prevented, and the occurrence of safety accidents is avoided.

Description of drawings

Fig. 1 is a side view of the first embodiment in the present invention;

Fig. 2 is a schematic diagram of the installation of the drive mechanism on the mounting seat in the first embodiment;

Fig. 3 is a structural schematic view of the rotating handle and the worm in the first embodiment;

Fig. 4 is a schematic diagram of the assembly of lugs and check pins in the first embodiment;

Fig. 5 is a structural schematic diagram of the first and second supporting feet;

Fig. 6 is a schematic diagram of the assembly of the lug and the check pin in the second embodiment;

Fig. 7 is a side view of the third and fourth embodiments of the present invention;

Fig. 8 is a schematic diagram of the installation of the driving mechanism on the mounting seat in the third and fourth embodiments;

Fig. 9 is a structural schematic diagram of the assembly of the turning handle and the first and second transmission wheels in the third and fourth implementations;

Fig. 10 is the front view of the fifth and sixth implementations.

detailed description

In order to make the objects and advantages of the present invention clearer, the present invention will be specifically described below in conjunction with examples. It should be understood that the following words are only used to describe one or several specific implementation modes of the present invention, and do not strictly limit the protection scope of the specific claims of the present invention.

The technical scheme adopted by the present invention is shown in Figures 1, 2, 3, 4, and 5. A safety cradle for construction engineering includes a support frame and a rotating drum 10 mounted on the support frame. The rotating drum 10 is connected to the driving mechanism. connection, the drum 10 is wound with a safety rope, and one end of the safety rope is provided with a safety hook. The support frame includes a mounting base 20 for installing the drum 10 and first and second support feet 30 for supporting the mounting base 20. The upper ends of the first and second supporting feet 30 are respectively hingedly connected with the mounting base 20 and the first hinged shaft 301 forming the first hinged connection is arranged in parallel with the axial direction of the drum 10, and the first and second supporting feet 30 are provided with a An elongated locking plate 31, one end of the locking plate 31 is hingedly connected to the middle part of the first supporting foot 30 and the second hinged shaft 32 forming the second hinged connection is arranged in parallel with the first hinged shaft 301, The other end of the locking plate 31 is provided with a bayonet with the opening downward, and the bayonet is arranged in a comb-like shape at the end of the locking plate 31, and a locking pin 33 is arranged on the second support foot 30, and the first and second supports The feet 30 are in two states, one is: the first and second supporting feet 30 are arranged in an inverted V shape, and the locking pin cooperates with the bayonet on the locking plate 31 to lock the first and second supporting feet 30 The working position, the second is: the first and second support feet 30 close together and put away the position.

In the above technical solution, when the cradle is not in use, the first and second support legs 30 are put away to facilitate the transportation and stacking of the cradle. When the cradle is in use, the first and second support legs 30 are unfolded and locked The plate 31 and the locking pin 33 are locked and matched so that the cradle maintains the corresponding use state. According to the difference in the diameter of the pile hole, different bayonets are selected to cooperate with the locking pin 33 to obtain the best use effect.

In order to prevent the mud bucket from falling accidentally at the pile hole opening, the present invention further adopts the following technical solutions for implementation.

The first embodiment is: the two ends of the rotating drum 10 extend to the outside of the mounting seat 20 and respectively set the first gear 11, the lower side of the rotating drum 10 is provided with a transmission shaft 14 arranged in parallel with it, and the two ends of the transmission shaft 14 rotate It is fixed on the mounting base 20, and the two ends of the transmission shaft 14 extend to the outside of the mounting base 20 and the second gear 12 is respectively arranged, the first and second gears are connected by a chain 13, and the middle part of the transmission shaft 14 is provided with a turbine and the turbine The lower side of the worm 41 is provided with a worm 41, and the worm 41 is rotatably mounted on the mounting seat 20. The worm wheel and the worm 41 form a transmission fit. One end of the worm 41 is provided with a rotating handle 42, and the other end of the worm 41 is provided with a lug 151. A check pin 44 is arranged on the side, and the check pin 44 is installed on the support table 22 upper side of the mounting base 20. One end of the check pin 44 is hingedly connected with the mounting base 20 for the third time and the hinge axis forming the third hinged connection is parallel to the worm screw 41. Axially arranged, the check pin 44 is in two states, one of which is: the check pin 44 is turned upward around the third hinge axis, and the lug 151 on the worm 41 is turned from the lower side of the support table 22 to the upper side of the support table 22 Rotate to avoid the avoidance position, the second is that the non-return pin 44 and the supporting table 22 are arranged in close contact, the end of the non-return pin 44 extends to the outside of the supporting table 22, and the lug 151 on the worm 41 moves from the supporting table 22 to the outside of the supporting table 22. The rotation of the upper side to the underside of the supporting table top 22 is prevented from a return position. A casing 15 is arranged on the worm, and lugs 151 are arranged on opposite sides of the casing 15 .

The second embodiment, as shown in Figure 6, the two ends of the drum 10 extend to the outside of the mounting seat 20 and the first gear 11 is respectively provided, the lower side of the drum 10 is provided with a transmission shaft 14 arranged in parallel therewith, the transmission shaft The two ends of 14 are rotated and fixed on the mounting base 20, and the two ends of the transmission shaft 14 extend to the outside of the mounting base 20 and are respectively provided with the second gear 12. The first and second gears are connected by the chain 13, and the middle part of the transmission shaft 14 A worm screw 41 is provided on the lower side of the worm screw, and the worm screw 41 is rotatably mounted on the mounting seat 20. The worm wheel and the worm screw 41 form a transmission fit. One end of the worm screw 41 is provided with a rotating handle 42, and the other end of the worm screw 41 is provided with a lug 151. A non-return pin 44 is arranged on the side of the lug 151, and the non-return pin 44 is installed on the lower side of the support table 22 of the mounting base 20, and the middle part of the non-return pin 44 is hingedly connected with the mounting base 20 for the third time and constitutes the hinge shaft of the third hinged connection. Arranged parallel to the axial direction of the worm 41, the end of the non-return pin located on the inner side of the support table is connected to the return spring 43, the non-return pin 44 is in two states, one of which is: the non-return pin 44 rotates around the third hinge axis Flip down to avoid the rotation of the lug 151 on the worm screw 41 from the upper side of the support table 22 to the lower side of the support table 22. The end portion of 44 extends to the outside of the supporting platform 22 to prevent the rotation of the lug 151 on the worm screw 41 from the lower side of the supporting platform 22 to the upper side of the supporting platform 22 . The retraction force of the return spring 43 makes the non-return pin abut against the support table. A casing 15 is arranged on the worm, and lugs 151 are arranged on opposite sides of the casing 15 .

In the first and second implementations, the mounting seat 20 is I-shaped, including two vertical plates arranged in opposite directions, and the first and second horizontal plates 20a, 20b arranged between the two vertical plates, and the transmission shaft 14 is located at the first Between the first and second horizontal plates 20a, 20b, two vertical plates 21 are respectively arranged on the outer sides of the middle part of the transmission shaft 14, and the upper and lower sides of the vertical plates 21 are fixed to the first and second horizontal plates 20a, 20b respectively. Then, the scroll rod is installed between the two vertical plates.

The third embodiment is shown in Figures 7, 8, and 9. The two ends of the drum 10 extend to the outside of the mounting seat 20 and are respectively provided with first gears 11, and the lower side of the drum 10 is provided with a drive shaft 14 arranged in parallel therewith. , the two ends of transmission shaft 14 are rotationally fixed on mounting base 20, and the two ends of transmission shaft 14 extend to the outside of mounting base 20 and are provided with second gear 12 respectively, and first, second gear are connected by chain 13, transmission shaft The middle part of 14 is provided with first transmission wheel 43 and the outside of first transmission wheel 43 is provided with second transmission wheel 41, and second transmission wheel 41 is provided with rotating handle 42, and first, second transmission wheel is connected by transmission belt 46 , the transmission shaft 14 is provided with a lug 151 on the shaft body, and a check pin 44 is arranged on the side of the lug 151. The check pin 44 is installed on the upper side of the support table 22 of the mounting seat 20, and one end of the check pin 44 is connected to the mounting base 20. The third articulated connection and the articulated shaft constituting the 3rd articulated connection are arranged parallel to the axial direction of the transmission shaft 14, and the check pin 44 is in two states, one of which is: the check pin 44 turns upwards around the third articulated axis to the transmission shaft. The lug 151 on the shaft 14 rotates from the lower side of the support table 22 to the upper side of the support table 22 to avoid the avoidance position. The portion extends to the outside of the support table 22 to prevent the rotation of the lug 151 on the transmission shaft 14 from the upper side of the support table 22 to the lower side of the support table 22 . A sleeve 15 is arranged on the transmission shaft, and lugs 151 are arranged on opposite sides of the sleeve 15 .

The fourth embodiment is: the two ends of the drum 10 extend to the outside of the mounting seat 20 and the first gears 11 are respectively provided, the lower side of the drum 10 is provided with a transmission shaft 14 arranged in parallel with it, and the two ends of the transmission shaft 14 rotate It is fixed on the mounting base 20, and the two ends of the transmission shaft 14 extend to the outside of the mounting base 20 and respectively set the second gear 12, the first and second gears are connected by the chain 13, and the middle part of the transmission shaft 14 is provided with the first transmission gear. wheel 43 and the outside of the first transmission wheel 43 is provided with a second transmission wheel 41, the second transmission wheel 41 is provided with a rotating handle 42, the first and second transmission wheels are connected by a transmission belt 46, and the shaft body of the transmission shaft 14 is provided with Lug 151 is arranged, and the side of lug 151 is provided with non-return pin 44, and non-return pin 44 is installed on the support platform 22 lower side of mounting base 20, and the middle part of non-return pin 44 is hingedly connected with mounting base 20 the 3rd and constitutes the 3rd. The hinge shafts of the three articulated connections are arranged parallel to the axial direction of the transmission shaft 14. The end of the check pin 44 located on the inner side of the support table is connected to the return spring 43. The check pin 44 is in two states, one of which is: check The pin 44 turns downwards around the third hinge shaft to avoid the rotation of the lug 151 on the transmission shaft 14 from the upper side of the support table 22 to the lower side of the support table 22. The second is that the non-return pin 44 and the support table 22, the end portion of the check pin 44 extends to the outside of the support table 22 to prevent the lug 151 on the drive shaft 14 from rotating from the lower side of the support table 22 to the upper side of the support table 22. A sleeve 15 is arranged on the transmission shaft, and lugs 151 are arranged on opposite sides of the sleeve 15 .

In the third and fourth embodiments, the mounting seat 20 is I-shaped, including two vertical plates arranged in an upright shape, and the first and second horizontal plates 20a, 20b arranged between the two vertical plates, and the transmission shaft 14 is located at the first Between the first and second horizontal plates 20a, 20b, two vertical plates 21 are arranged on the outer side of the middle part of the transmission shaft 14, and the upper and lower sides of the vertical plates 21 are fixedly connected to the first and second horizontal plates 20a, 20b respectively. The second transmission wheel 41 is rotatably installed between the two vertical plates.

In the fifth embodiment, as shown in FIG. 10 , one end of the drum 10 is provided with a rotating handle 42 , the other end of the drum 10 is provided with a short shaft 14 , and the end of the short shaft 14 extending to the outside of the mounting seat 20 is provided with a lug 151 , the side of the lug 151 is provided with a non-return pin 44, the non-return pin 44 is installed on the upper side of the support table 22 of the mounting base 20, and one end of the non-return pin 44 is hingedly connected with the mounting base 20 for the third time and constitutes a third hinged connection. The shaft is arranged parallel to the axial direction of the short shaft 14, and the check pin 44 is in two states, one of which is: the check pin 44 turns upwards around the third hinge axis, and the lug 151 on the short shaft 14 is lowered from the support table 22. The rotation of the upper side of the lateral support table 22 is an avoidance position. The second is that the check pin 44 is arranged in close contact with the support table 22, and the end of the check pin 44 extends to the outside of the support table 22 to the short axis 14. The lug 151 on the upper side of the supporting platform 22 is prevented from rotating from the upper side of the supporting platform 22 to the lower side of the supporting platform 22 . A sleeve 15 is arranged on the short axis, and lugs 151 are arranged on opposite sides of the sleeve 15 .

The sixth embodiment is that one end of the drum 10 is provided with a rotating handle 42, and the other end of the drum 10 is provided with a short shaft 14, and the end of the short shaft 14 extending to the outside of the mounting seat 20 is provided with a lug 151. A non-return pin 44 is arranged on the side, and the non-return pin 44 is installed on the lower side of the support table 22 of the mounting base 20. The middle part of the non-return pin 44 is connected to the third hinge connection of the mounting base 20 and the hinge axis forming the third hinge connection is parallel to the short axis 14. The axial arrangement of the check pin 44 is located at the end of the support table 22 and the return spring 43 is connected. The check pin 44 is in two states, one of which is: the check pin 44 turns downward around the third hinge axis The rotation of the lug 151 on the short shaft 14 from the upper side of the support table 22 to the lower side of the support table 22 is avoided. The end portion extends to the outside of the supporting platform 22 to prevent the rotation of the lug 151 on the short shaft 14 from the lower side of the supporting platform 22 to the upper side of the supporting platform 22 . The retraction force of the return spring 43 makes the non-return pin abut against the support table.

In the fifth and sixth schemes, the mounting seat 20 is U-shaped, and includes two vertical plates arranged oppositely, and horizontal plates 20a, 20b arranged between the two vertical plates, and the drum 10 is installed between the two vertical plates. A flat plate is arranged on the outside of the vertical plate, and the flat plate constitutes a supporting table top 22 . A sleeve 15 is arranged on the short axis, and lugs 151 are arranged on opposite sides of the sleeve 15 .

In the first and third schemes, the non-return pin 44 is connected with the stay rope 45 . In the second, fourth, and sixth schemes, the retracting force of the return spring 43 makes the non-return pin abut against the support table.

By arranging the check pin 44, the reverse rotation of the worm 41 is prevented, and the mud bucket is prevented from falling, so that the operator can always remove the mud bucket with both hands, so as to avoid the occurrence of safety accidents. During specific implementation, the forward rotation of the worm 41 makes the safety rope wind up on the drum 10 and the mud bucket goes up, and the reverse rotation of the worm 41 makes the safety rope unwind on the drum 10 and the mud bucket goes down.

The detailed operation is that the support foot 30 includes the first and second struts 30a, 30b arranged in a figure-eight shape, the upper ends of the first and second struts 30a, 30b are hingedly connected with the mounting base 20, and the first and second struts are hingedly connected. The upper and lower ends are connected by the first and second straight rods 30c and 30d arranged horizontally, and the first and second oblique rods 30e and 30f arranged in an X shape are arranged between the first and second straight rods 30c and 30d to pair the first and second rods 30a, 30b for strengthening connection;

The first and second supporting legs 30 of the above structure have high structural strength and are more reliable in fixing and supporting the mounting base 20 . When the mud bucket needs to be put down, the non-return pin 44 is pulled up by the stay cord 45, so that the non-return pin 44 is turned over to the inboard of the support table 22, so that the worm screw 41 can freely reversely rotate, so that the mud bucket is put down smoothly.

The above is only a preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, after knowing the content recorded in the present invention, they can also make changes to it without departing from the principle of the present invention. Several equivalent transformations and substitutions should also be deemed to belong to the protection scope of the present invention.

Claims (3)

1. a kind of safe reel cage of architectural engineering, it is characterised in that：Including the rotating cylinder being rotatablely installed on support frame and support frame, Rotating cylinder is connected with drive mechanism, and safety rope is wound with rotating cylinder, and one end of safety rope sets safety door hook；

Support frame includes the mounting seat for installing rotating cylinder and the first support feet, the second support feet for supporting mounting seat, First support feet, the upper end of the second support feet be articulated and connected respectively with mounting seat first and constitute first be articulated and connected first hinge The axially in parallel arrangement of spindle and rotating cylinder, is provided with the locking plate of strip between the first support feet, the second support feet, locking The middle part second of one end of plate and the first support feet is articulated and connected and constitutes the second the second jointed shaft and first being articulated and connected Jointed shaft is arranged in parallel, and the other end of locking plate sets the bayonet socket that Open Side Down, and bayonet socket is in broach in the end of locking plate Shape is set, and locking pin is set in the second support feet, and the first support feet, the second support feet are in two states, and one is：First Spike, the second support feet be in reverse V-shaped arrangement, locking pin with lock plate on bayonet socket be engaged to the first support feet, second The working position that spike is locked, secondly being：What the first support feet, the second support feet adducted together packs up position；

The two ends of rotating cylinder extend to the outside of mounting seat and set first gear respectively, and the downside of rotating cylinder sets arrangement in parallel Power transmission shaft, the two ends of power transmission shaft rotate and are fixed in mounting seat, and power transmission shaft two ends extend to mounting seat outside and point Second gear is not set, and first gear, second gear are attached by chain, and turbine and turbine are provided with the middle part of power transmission shaft Downside worm screw is set, worm screw is rotatably installed in mounting seat, and worm gear, worm screw constitute transmission and coordinated, and one end of worm screw, which is set, to be turned Dynamic handle, the other end of worm screw is provided with lug, and the side of lug sets non-return pin, and non-return pin is arranged on the supporting table of mounting seat On the upside of face, non-return pin one end is articulated and connected with mounting seat the 3rd and constitutes axle of the 3rd jointed shaft being articulated and connected parallel to worm screw To arrangement, non-return pin is in two states, and one is：Non-return pin is flipped up to the lug on worm screw from branch around the 3rd jointed shaft The avoidance position that rotation under support table top on the upside of lateral supporting bable tops is avoided, secondly being, non-return pin fits with supporting bable tops Arrangement, the end of non-return pin extend to the outsides of supporting bable tops to the lug on worm screw from supporting bable tops under lateral supporting bable tops The non-return position that the rotation of side is prevented；

Support feet includes the first pole, the second pole that eight shape are arranged, the first pole, the upper end of the second pole and mounting seat the One is articulated and connected, and the first pole, the upper and lower side of the second pole are connected by the first horizontally disposed straight-bar, the second straight-bar, the The first brace of X shapes arrangement, the second brace is set to strengthen the first pole, the second pole between one straight-bar, the second straight-bar Connection.

2. the safe reel cage of the architectural engineering according to claim 1, it is characterised in that：Non-return pin is connected with drawstring.

3. the safe reel cage of the architectural engineering according to claim 1, it is characterised in that：Sleeve pipe is provided with worm screw, is covered The relative both sides of pipe set lug.