CN103806654A - Hydraulic support system for elevator shaft mold and operating method thereof - Google Patents

Abstract

The invention discloses a hydraulic support system and an operation method for an elevator shaft mold, comprising two upper and lower support seats, a hydraulic cylinder is arranged on the lower support seat, a lifting seat is connected to the top of the hydraulic cylinder, and the lifting seat is arranged on the upper support Above the seat and connected with the upper support seat, the outer walls of the upper support seat and the lower support seat are provided with free displacement outriggers; when the power element is turned on, the hydraulic rod starts to rise, and the lifting seat drives the upper support seat to move upward, and the upper support seat The movement of the support base drives the outer tube to move upward along the outer wall of the runway. The free displacement outriggers on the outer wall of the upper support base are pressed by the upper wall of the reserved hole at the corresponding position, and the free displacement outriggers pass through the rollers along the elevator shaft. The outer wall slides upwards, and the automatic recovery of the freely displaceable outriggers extends into the reserved hole to realize positioning. The cost of the hydraulic support system and its operation method is not high, it can be operated by one person, the operation is simple, the hydraulic system is automatically controlled, and the safety risk is small.

Description

Hydraulic support system for elevator shaft mold and its operation method

technical field

The invention relates to a system and an operating method thereof, in particular to a hydraulic support system for an elevator shaft mold and an operating method thereof, and belongs to the construction field.

Background technique

The elevator shaft is the shaft where the elevator is installed. The size of the elevator shaft is determined according to the selection of the elevator. The elevator track and the counterweight track are installed on the shaft wall, and the elevator door is installed in the reserved door opening. There is an elevator machine room on the top of the shaft. Building shaft/elevator shaft climbing formwork, as a category of building formwork, has been embodied in building climbing formwork technology. With the continuous update of high-rise building construction technology, the traditional vertical shaft mold technology has become the bottleneck of high-rise building rapid construction technology. Recently, the tool-type self-climbing mold patents that have been authorized, such as patent No. 201020202357.5 "Tool-type tooth-driven self-climbing mold", patent No. 201020202286.9 "tool-type hydraulic self-climbing mold", etc., have unveiled the tool-type shaft climbing mold According to the new trend of the development of the frame, the traditional manual operation process is upgraded to the electric program control, and the automatic climbing of the barrel mold is implemented, which is undoubtedly a leap forward in the barrel mold process. But there are still some deficiencies, such as: the cylinder formwork uses the four-column cantilever climbing frame as the fulcrum to climb, not only the structure is redundant, but the key is that the four cantilever columns are set, which makes transportation and installation inconvenient. This technology is restricted; in addition, there is a lack of simple and effective measures on the installation and connection structure of the cylinder mold and the power box. At present, when pouring concrete in high-rise building shafts and elevator shafts, the method of erecting frame pipes to support the formwork is mainly used. After one section of this construction method is not completed, the frame pipes and support formwork need to be erected again during the construction of the next stage, and the frame pipes and formwork must be erected repeatedly. Support formwork, labor-intensive and time-consuming, the cost is high.

Contents of the invention

The object of the present invention is to overcome the shortcomings and deficiencies of the above-mentioned prior art, and provide a hydraulic support system and its operating method for the elevator shaft mold. The hydraulic support system and its operating method solve the problem of the overall automatic lifting of the elevator shaft mold , can be used as an installation and operation platform to install the upper formwork, no need to erect a frame pipe, adopt a hydraulic system, and the lifting of the elevator shaft formwork is upgraded from manual control to automatic control. At the same time, the upper part is equipped with an umbrella-shaped safety cap, which greatly improves the safety of the system.

The object of the present invention is achieved through the following technical solutions: a hydraulic support system for elevator shaft molds, including two parallel support bases on the upper and lower levels, a hydraulic cylinder is arranged on the support base of the lower layer, and the bottom of the hydraulic cylinder is fixed on the lower support On the seat, the top of the hydraulic cylinder is connected with a lifting seat, and the lifting seat is arranged above the upper support seat and connected with the upper support seat, and the outer walls of the upper support seat and the lower support seat are provided with free displacement legs, and The free shifting outriggers can be turned downwards.

In order to ensure the safety during lifting, only upper and lower support bases are designed to achieve simple and effective lifting, increase its stability and efficiency during lifting, the structure is simple, the principle is simple, and it is convenient for operators to use.

Further, eight runways are vertically arranged on the support base of the lower layer, the length of each runway is greater than the maximum stroke of the hydraulic cylinder, the outer wall of the runway is fitted with an outer tube, and the adjacent outer tubes are connected by connecting plates, The top of the outer tube is connected with the bottom of the upper support seat.

Further, the raceways are evenly distributed on the lower supporting base, and the hydraulic cylinder is arranged at the center of the structure formed by the eight raceways. The eight runways are distributed in pairs on the lower support base. The distance between each set of runways is sufficient to install connecting rods without interference. The connecting rods can connect the helmet with the upper support base as a whole, providing stability and It can maintain its safety when it falls.

Further, the outer walls of the upper support base and the lower support base are provided with fixed shafts, the freely displaceable outriggers are connected to the fixed shafts, and the freely displaceable outriggers can rotate downward around the fixed shafts. Rollers are provided at the ends of the freely displaceable outriggers to facilitate their movement during lifting inside the elevator shaft and reduce frictional resistance.

Further, a safety cap is provided on the top of the upper support seat, the safety cap is connected to the upper support seat through connecting rods, and the two ends of the lifting seat are respectively connected to the corresponding connecting rods. The length and width of the helmet are larger than the size of the elevator shaft, so as to ensure safety.

The shape of the helmet is generally a cone at the top and a quadrangle at the bottom, and the area of the bottom is larger than the maximum area of the barrel mold, so as to completely cover the end face of the barrel mold, so as to ensure its safety protection for the barrel mold, while the base It is generally a quadrilateral frame structure, and each side of the base is provided with a connecting device, which connects the helmet and the base into an integral structure to achieve stability in the up and down direction, and the connecting device passes through the inside of the cylinder mold. The ground size of the safety helmet is set according to the size of the specific cylinder mold, as long as it is larger than the maximum size of the cylinder mold.

Further, the hydraulic cylinder is connected with a hydraulic pipe, and the hydraulic pipe is connected with a hydraulic station. The hydraulic power provided by the hydraulic station is stable at 5t, and it can have stable and uniform efficiency when lifting, and the operator will not shake when standing on the support base.

Further, the size of the upper supporting seat is the same as that of the lower supporting seat, and the upper supporting seat is arranged directly above the lower supporting seat. Power elements (electric motors) can be set on the lower support base to provide original power for starting the equipment.

A method for operating a hydraulic support system for an elevator shaft mold, comprising the following steps:

(a) Turn on the power element, input the hydraulic oil in the hydraulic station into the hydraulic cylinder through the hydraulic pipe, the hydraulic rod starts to rise, pushes the lifting seat to move upward, and the lifting seat drives the upper support seat to move upward, at this time, the lower support seat remains fixed. The movement of the upper support seat drives the outer tube to move upward along the outer wall of the runway, which maintains the stability during lifting. The freely displaceable outriggers on the outer wall of the upper support seat are pressured by the upper wall of the reserved hole at the corresponding position. Rotate downwards. During the lifting process, the freely displaceable outriggers slide upwards along the outer wall of the elevator shaft through the rollers. When lifting to the reserved opening above, the freely displaceable outriggers automatically recover and extend into the reserved opening. When the hydraulic rod stops rising, since the free displacement outrigger can only rotate downward, after receiving the upward supporting force from the lower wall of the reserved hole, the free displacement outrigger remains unchanged and realizes positioning;

(b) The hydraulic rod remains still, the hydraulic cylinder is retracted upwards, and the lower support seat is driven to move upward. At this time, the upper support seat and the pipe remain stationary, and the runway on the lower support seat moves in the corresponding pipe to ensure that the lower support seat During the lifting process, the balance is stable, and the free-displacement outriggers on the outer wall of the lower supporting base start to rotate downward due to the pressure on the upper wall of the corresponding reserved hole. The outer wall of the hydraulic cylinder slides upwards. When it is lifted to the reserved hole above, the free displacement outriggers automatically recover and extend into the reserved hole. At this time, the hydraulic cylinder stops rising, because the free displacement outriggers can only rotate downwards. After receiving the upward support force from the lower wall of the reserved hole, the freely displaceable outriggers remain unchanged to achieve positioning, and a unit lifting process of the support system is completed at this time;

(c) Steps (a) and (b) are repeated to achieve continuous lifting of the support system in the elevator shaft.

When lifting, when one layer of supporting base is lifted, the other layer of supporting base is used as a support point. After the free shifting outriggers are inserted into the inside of the elevator shaft, the free shifting outriggers are used as supporting points to provide support for the overall system. The support maintains stability in the vertical direction, and the movement of the hydraulic system realizes the lifting of another floor. The hydraulic lift is stable, and the operator will not feel shaking when standing on the support seat, which increases safety.

In summary, the beneficial effects of the present invention are: the cost of the hydraulic support system and its operating method is not high, the equipment can be processed by itself, it can be reused many times, and the entire formwork system can be lifted and lowered by one person. The requirements for personnel are not high, the operation is simple, the hydraulic system is automatically controlled, and the safety risk is small. The supporting platform plate can be used as an operating platform for installing the main formwork without erecting a frame pipe.

Description of drawings

Fig. 1 is the non-jacking state figure of the present invention;

Fig. 2 is a jacking state diagram;

Fig. 3 is a recovery state diagram of the present invention.

The marks in the drawings and the names of corresponding parts: 1—safety helmet; 2—connecting rod; 3—lifting seat; 4—upper support seat; 5—free shifting outrigger; 6—outer tube; 7—runway; 8 —Reserved hole; 9—Elevator shaft; 10—Lower supporting seat; 11—Hydraulic cylinder; 12—Hydraulic pipe.

Detailed ways

The present invention will be described in further detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

Example 1:

As shown in Figure 1, the hydraulic support system used for the elevator shaft mold includes two parallel support bases on the upper and lower levels. The lower support base 10 is provided with a hydraulic cylinder 11, and the bottom of the hydraulic cylinder 11 is fixed on the lower support base 10. Above, the top of the hydraulic cylinder 11 is connected with a lifting base 3, the lifting base 3 is arranged above the upper support base 4 and connected with the upper support base 4, and the outer walls of the upper support base 4 and the lower support base 10 are provided with free Displacement support leg 5, and free displacement support leg 5 can rotate downwards. The elevator shaft is generally a regular square, so the upper support base 4 and the lower support base 10 are all set to a regular square, and free displacement legs 5 are arranged on the symmetrical sides of the square. The height of the leg 5 is consistent with the height of the corresponding supporting seat, so that the force can be generated simultaneously during lifting without time lag.

Eight runways 7 are vertically arranged on the support base 10 of the lower floor, the length of each runway 7 is greater than the maximum stroke of the hydraulic cylinder 11, and the outer wall of the runway 7 is fitted with an outer tube 6, and the adjacent outer tubes 6 pass through The connecting plate is connected, and the top of the outer tube 6 is connected with the bottom of the upper support base 4 . Each side on the lower support seat 10 is provided with two runways 7, and the runway 7 on each side is connected as an integral structure by connecting plates. The outer tube 6 sleeved on its outer wall is also perpendicular to the lower support base 10 during the movement, which ensures that the upper support base 4 is on the same vertical track as the lower support base 10 when it is lifted, and no inclination will occur. When operating above, the center of gravity can be stabilized and feel safe.

The runways 7 are evenly distributed on the lower supporting base 10, and the hydraulic cylinder 11 is arranged at the center of the structure formed by the eight runways 7. The hydraulic cylinder is started, and the lifting seat is lifted upwards, and the lifting seat pulls the upper support seat 4 to move, and when it moves to the reserved hole 8 of the elevator shaft 9, the free displacement leg 5 is used to extend into the reserved hole 8 to realize positioning. The freely displaceable support leg 5 can only be rotated downwards. When positioning, the supporting force at the bottom makes the freely displaceable support leg 5 clamp in the reserved hole 8 . The runway 7 and the outer pipe 6 ensure that the upper support base 4 and the lower support base 10 can be on the same plumb line when they are lifted.

Both the outer wall of the upper supporting base 4 and the outer wall of the lower supporting base 10 are provided with fixed shafts, the freely displaceable legs 5 are connected with the fixed shafts, and the freely displaceable legs 5 can rotate downward around the fixed shafts. Relying on the free displacement outriggers 5 provided on the four sides of the upper support base 4 and the lower support base 10, the free displacement outriggers 5 can freely shrink and rise over the poured cylinder when they rise, and fall back by their own weight to support the cylinder wall Stay on the hole 8 to realize that the platform is accurately in place.

The top of the upper support base 4 is provided with a safety helmet 1, the safety helmet 1 is connected with the upper support base 4 through the connecting rod 2, and the two ends of the lifting base 3 are respectively connected with the corresponding connecting rod 2. The area of the safety helmet 1 is larger than the area of the elevator shaft 9, and the safety helmet 1 can prevent the overall fall of the cylinder mold support platform, thereby avoiding safety accidents.

The hydraulic cylinder 11 is connected with a hydraulic pipe 12, and the hydraulic pipe 12 is connected with a hydraulic station. The lifting of the whole system is automatically controlled by the hydraulic system, which is easy and safe to operate. The hydraulic pipe 12 pumps the hydraulic oil in the hydraulic station into the hydraulic cylinder 11 to promote the operation of the support system. The hydraulic lifting force is 5t, the hydraulic lifting speed is 0.5m/min, the height of the upper and lower two reserved holes is 1.1m, the length of the runway is 2.4m, and the maximum stroke of the hydraulic cylinder is less than 2.4m. Outer pipe was still inside the scope of runway when the last reserved hole 8.

The size of the upper supporting base 4 is the same as that of the lower supporting base 10 , and the upper supporting base 4 is arranged directly above the lower supporting base 10 . The upper support base 4 and the lower support base 10 are lifted and supported in the elevator shaft mold in a progressive manner layer by layer.

The upper support seat 4 is arranged with planks as an operating platform for installing the main formwork, which is safe and convenient when the main formwork is installed, and there is no need to set up a frame pipe in addition.

Example 2:

As shown in Figure 2, turn on the power element, input the hydraulic oil in the hydraulic station to the hydraulic cylinder 11 through the hydraulic pipe 12, the hydraulic rod starts to rise, and pushes the lifting seat 3 to move upward, and the lifting seat 3 drives the upper support seat 4 to move upward , now the lower supporting seat 10 remains motionless, and the movement of the upper supporting seat 4 drives the outer tube 6 to move upward along the outer wall of the runway 7, which keeps the stability during lifting. Due to the pressure on the upper wall of the reserved hole 8 at the corresponding position, it starts to rotate downward. During the lifting process, the freely displaceable outrigger 5 slides upwards along the outer wall of the elevator shaft 9 through the rollers, and lifts to the reserved hole 8 above. , the automatic recovery of the free displacement support leg 5 stretches into the inside of the reserved hole 8. At this time, the hydraulic rod stops rising. Since the free displacement support leg 5 can only rotate downwards, it is subject to the upward force of the lower wall of the reserved hole 8. After supporting the force, the freely displaceable outrigger 5 remains unchanged to realize positioning.

In Fig. 2, the lower support seat 10 remains stationary, and only the upper support seat 4 is lifted. When lifting, the distance between the upper and lower reserved holes is 1.1m, the hydraulic lifting force is 5t, and the hydraulic lifting speed is 0.5m/min. The distance on each side of the elevator shaft is 2.2m. The area of the elevator shaft mold is calculated to be 4.84㎡, so the maximum area of the safety helmet is greater than 4.84㎡. The length of the connecting rod is now designed to be 3.4m. The safety helmet, connecting rod and The other components are made of metal materials into a hollow pipe frame structure, which saves weight and labor when lifting. The single-layer lifting time is about 2.2 minutes, and the hydraulic lifting force of 5t can completely lift the upper support base 4 into place.

One end of the fixed shaft passes through the freely displaceable outrigger 5, and the end of the freely displaceable outrigger 5 close to the support seat 4 is heavy. In the free state, the free displaceable outrigger 5 is always kept in a parallel state by using the principle of a seesaw. At this time, due to the downward pressure, the freely displaceable outrigger 5 has a tendency to rotate downward around the fixed shaft, and the rollers arranged on the top of the freely displaceable outrigger 5 roll on the inner wall of the elevator shaft 9, reducing the Its friction reduces energy loss and increases the efficiency of its movement. After being promoted to last reserved hole 8, utilize seesaw principle, through the self-weight of freely displaceable support leg 5, freely displaceable support leg 5 returns to horizontal state automatically, realizes positioning.

Example 3:

As shown in Figure 3, the hydraulic rod remains motionless, and the hydraulic cylinder 11 is recovered upwards, driving the lower support base 10 to move upward. to ensure the balance and stability of the lower support seat 10 during the lifting process, and the freely displaceable outriggers 5 on the outer wall of the lower support seat 10 begin to rotate downward due to the pressure on the upper wall of the corresponding reserved hole 8. During the lifting process, the freely displaceable outrigger 5 slides upwards along the outer wall of the elevator shaft 9 through the rollers, and when it is lifted to the reserved hole 8 above, the freely displaceable outrigger 5 automatically recovers and extends into the reserved hole 8. , the hydraulic cylinder 11 stops rising, and since the free displacement leg 5 can only rotate downward, after receiving the upward supporting force from the lower wall of the reserved hole 8, the free displacement leg 5 remains unchanged to realize positioning. A unit lifting process of the support system is completed.

During this lifting, the upper support base 4 remains stationary, as the positioning base point, the lower support base 10 is recovered by the hydraulic cylinder, and the runway is lifted upward along the inside of the outer tube. The same hydraulic lifting force is 5t, and the hydraulic lifting speed is 0.5 m/min, since the height between the upper and lower reserved holes is 1.1m, the lifting time is about 2.2 minutes.

Repeat the process of embodiment 2 and embodiment 3 to realize the continuous lifting of the support system in the elevator shaft.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any form. Any simple modification or equivalent change made to the above embodiments in essence according to the technology and method of the present invention shall fall within the scope of the present invention. within the protection scope of the present invention.

Claims (8)

1. A hydraulic support system for elevator shaft molds, characterized in that: it includes two layers of parallel support seats, the lower support seat (10) is provided with a hydraulic cylinder (11), and the bottom of the hydraulic cylinder (11) fixed on the lower supporting seat (10), the top of the hydraulic cylinder (11) is connected with a lifting seat (3), the lifting seat (3) is arranged above the upper supporting seat (4) and connected with the upper supporting seat (4), Both the outer walls of the upper supporting seat (4) and the lower supporting seat (10) are provided with freely displaceable outriggers (5), and the freely displaceable outriggers (5) can rotate downward. 2. The hydraulic support system for the elevator shaft mold according to claim 1, characterized in that: eight runways (7) are vertically arranged on the lower support seat (10), and the length of each runway (7) is longer than The maximum stroke of the hydraulic cylinder (11), the outer wall of the runway (7) is sleeved with the outer tube (6), and the adjacent outer tubes (6) are connected by a connecting plate, the top of the outer tube (6) and the upper layer The bottom connection of the support base (4). 3. The hydraulic support system for the elevator shaft mold according to claim 2, characterized in that: the runways (7) are evenly distributed on the lower support base (10), and the hydraulic cylinders (11) are arranged on eight runways ( 7) At the center of the formed structure. 4. The hydraulic support system for the elevator shaft mold according to claim 1, characterized in that: fixed shafts are arranged on the outer wall of the upper support seat (4) and the outer wall of the lower support seat (10), free The displacement outrigger (5) is connected with the fixed shaft, and the freely displaceable outrigger (5) can rotate downward around the fixed shaft. 5. The hydraulic support system for the elevator shaft mold according to claim 1, characterized in that: a safety cap (1) is provided on the top of the upper support seat (4), and the safety cap (1) passes through the connecting rod ( 2) Connect with the upper supporting seat (4), and connect the two ends of the lifting seat (3) with the corresponding connecting rods (2) respectively. 6. The hydraulic support system for elevator shaft mold according to claim 1, characterized in that: the hydraulic cylinder (11) is connected with a hydraulic pipe (12), and the hydraulic pipe (12) is connected with a hydraulic station. 7. The hydraulic support system for the elevator shaft mold according to any one of claims 1 to 6, characterized in that: the upper support base (4) is the same size as the lower support base (10), and the upper support base (4) The support base (4) is arranged directly above the lower support base (10). 8. A method for operating a hydraulic support system for an elevator shaft mold, comprising the following steps: (a) Turn on the power element, input the hydraulic oil in the hydraulic station to the hydraulic cylinder (11) through the hydraulic pipe (12), the hydraulic rod starts to rise, and pushes the lifting seat (3) to move upward, and the lifting seat (3) drives the upper layer The support seat (4) moves upwards, at this time the lower support seat (10) remains stationary, and the movement of the upper support seat (4) drives the outer tube (6) to move upward along the outer wall of the runway (7), maintaining the stability during lifting Due to the pressure on the upper wall of the reserved hole (8) at the corresponding position, the free displacement outrigger (5) on the outer wall of the upper support seat (4) starts to rotate downward. During the lifting process, the free displacement outrigger ( 5) Sliding upwards along the outer wall of the elevator shaft (9) by the rollers, when lifting to the upper reserved opening (8), the automatic recovery of the freely displaceable outrigger (5) extends into the reserved opening (8), At this time, the hydraulic rod stops rising, and since the freely displaceable outrigger (5) can only rotate downward, after receiving the upward supporting force from the lower wall of the reserved hole (8), the freely displaceable outrigger (5) remains unchanged , realize positioning; (b) The hydraulic rod remains still, and the hydraulic cylinder (11) is recovered upwards, driving the lower support seat (10) to move upward. At this time, the upper support seat (4) and the pipeline (6) remain stationary, and the lower support seat (10) ) on the runway (7) moves in the corresponding pipe (6) to ensure the balance and stability of the lower support base (10) during the lifting process, and the free displacement legs (5) on the outer wall of the lower support base (10) are affected by The pressure on the upper wall of the corresponding reserved hole (8) starts to rotate downward. During the lifting process, the freely displaceable outrigger (5) slides upwards along the outer wall of the elevator shaft (9) through the rollers. When the hole (8) is reserved, the automatic recovery of the free displacement outrigger (5) extends into the reserved hole (8). At this time, the hydraulic cylinder (11) stops rising, because the free displacement outrigger (5) can only Rotate downwards, after receiving the upward supporting force from the lower wall of the reserved hole (8), the freely displaceable outrigger (5) remains unchanged to achieve positioning, and a unit lifting process of the supporting system is completed at this time; (c) Steps (a) and (b) are repeated to achieve continuous lifting of the support system in the elevator shaft.

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