A vertical mold dismounting and mounting device and method for a concrete slab mold

Abstract

A vertical mold dismounting and mounting device and method for concrete slab mold, which is characterized in that: the left and right sides of the frame are provided with left and right slide plate assemblies; each slide plate assembly is composed of a movable jaw formed by a handle and a handle support, and the movable jaw is controlled by a push-pull oil cylinder and a push rod to clamp the vertical mold and play the role of lifting and lowering the vertical mold partition plate under the action of a jacking oil cylinder; the loosening assembly is provided with two push gears clamped on the vertical mold partition plate, and two oil cylinders are used to make low-amplitude extension and retraction to separate the partition plate from the prefabricated slab; the upper unloading positioning mechanism makes the three positioning plates descend to push the prefabricated slab between the partition plates downward and position the vertical mold partition plate under the action of the lifting oil cylinder. The device has compact and reasonable structure, and the basic operation of the whole mold dismounting and mounting process is automatically realized by the machine, which reduces the labor intensity of the personnel and is beneficial to improve the production efficiency.

Description

Technical Field

[0001] This invention relates to the field of reinforced concrete slab production equipment technology, and more particularly to a vertical mold assembly and disassembly device for precast reinforced concrete slabs.

[0002] Currently, the manufacturing methods for precast reinforced concrete slabs are divided into two types based on the molds used: flat-lay (where the mold is laid flat on the ground for pouring) and vertical mold pouring. Vertical mold pouring has the advantage of occupying less production space, meaning that more finished products can be produced from the same production site within a single pouring cycle. Figure 1 As shown, the structure of the vertical mold (6) is (see...) Figure 7 , Figure 8 The left and right baffles 8a and 8b, along with several partitions 4, are inserted into the holes 2 in the base plate 1 to form a vertical pouring space. Figure 7 Two lifting rods are used to longitudinally insert into holes in all the partitions (two rows of holes near the left and right baffles, located at the top of the partitions) (not shown in the figure) for lifting equipment to jack up or hoist. Vertical mold disassembly and assembly are both done manually, resulting in high labor intensity and low production efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a vertical mold disassembly and assembly device for concrete slabs, which aims to reduce the heavy physical labor of personnel and realize the disassembly and assembly of molds through mechanization and automation, thereby improving production efficiency.

[0004] The objective of this invention is achieved as follows: A vertical mold assembly and disassembly device for concrete slabs, comprising a rectangular steel frame with identical and symmetrical left and right sliding plate assemblies serving as lifting partitions on its wide sides. The left sliding plate assembly consists of four pairs of rollers fixed to its left side, parallel to the left side of the frame. These four roller pairs are arranged in pairs, clamping onto two strip plates on the left side of the frame to form rolling pairs. Two handle brackets are fixed to the lower right side of the sliding plate, and a rotating shaft is movably mounted on these two handle brackets. The two sides of the handle bracket have two movable clamps holding two handles, and both handles are fixed on the rotating shaft, forming a movable jaw with the handle bracket to grasp the lifting rod of the vertical mold. A push-pull cylinder is hinged at the middle position of the upper part of the right side of the slide plate. The outer end of the piston rod of the push-pull cylinder is hinged to the upper end of the lever. The lower end of the lever is fixed to the middle of the rotating shaft. The lifting cylinder is vertically installed on the lower left side frame of the machine frame. Two ear plates are fixed on the upper middle part of the left side of the slide plate. The shaft is longitudinally mounted on the two ear plates and inserted into the hole on the piston rod of the lifting cylinder that extends upward.

[0005] The loosening assembly used for high-frequency left and right swinging to separate the precast plate and partition plate in the vertical mold is as follows: the mounting plate is fixed on two vertical steel bars on the rear side of the frame, two hydraulic cylinders are longitudinally mounted on the rear side of the mounting plate, the piston rods of the two hydraulic cylinders extend from the rear to the front through holes in the mounting plate, two fixing parts located inside the two hydraulic cylinders are set on the front side of the mounting plate, the push-pull shaft is rotatably mounted on the two fixing parts, the two outer ends of the push-pull shaft move through two holes on the two piston rods, and a tooth is fixed on each of the two outer ends, two connecting rods are horizontally fixed between the two teeth, the cylinder is set in the middle of the rear side of the mounting plate, and the steel wire rope connected to the upper end of the piston rod of the cylinder passes around the fixed pulley mounted on the frame and is connected to the upper connecting rod between the two teeth;

[0006] The upper unloading positioning mechanism is as follows: the base is installed on two longitudinal steel bars on the top surface of the frame, the lifting cylinder is vertically installed on the top surface of the base, the lower end of the piston rod of the lifting cylinder passes downward through the hole on the base and is fixed or hinged to the fixed shaft, the fixed shaft is mounted on two fixed supports on the lower plate, the left and right sides of the lifting cylinder are respectively provided with the same guide structure, the guide structure is composed of a guide column passing from top to bottom through the hole on the base and the sleeve fixed on the bottom surface of the base, and then being fixedly connected to the fixed seat on the lower plate, the bottom surface of the lower plate is longitudinally fixed with three positioning plates used for positioning the vertical mold and for pressing out the precast plate.

[0007] The three positioning plates are fixed in the following way: two pairs of vertical clamping plates are fixed on the bottom surface of the lower plate, and the positioning plates are clamped between the two pairs of vertical clamping plates and fixed by rivets or bolts; when the loosening assembly is not in use, the two teeth are in a vertical state. When in use, the piston rod of the cylinder installed on the rear side of the mounting plate extends upward and lowers the wire rope through the fixed pulley, causing the connecting rod to drive the two teeth to pull down to a horizontal state, so that the two teeth are pressed against all the partitions of the vertical mold. At this time, the start of the two hydraulic cylinders causes the hydraulic cylinder piston rod to be in a low amplitude extension and retraction condition. The partitions of the vertical mold sway left and right under the action of the teeth and separate from the precast plate.

[0008] The roller pair structure is as follows: a rotating shaft is installed on each of the two parallel U-shaped plates, and a roller is fixed on the rotating shaft.

[0009] The frame is fixed to the ground with anchor bolts.

[0010] Another object of the present invention is to provide a method for disassembling and assembling a vertical mold for sheet metal.

[0011] Another objective of this invention is achieved as follows: The method for dismantling and assembling the mold includes the following steps: The vertical mold for the slab is erected on the pouring platform, and a precast reinforced concrete slab is poured. After a certain period of time, when the concrete has solidified to a certain degree, the vertical mold is transported to the concrete slab vertical mold dismantling and assembly equipment by a forklift or conveyor. After the position is set, the left and right sliding plates are lowered to a certain height by the hydraulic cylinder. Then, the push-pull cylinder moves the handle through the lever and the rotating shaft to grab the vertical mold lifting rod. The cylinder extends and lowers the lever to lock the vertical mold partition. Then, the hydraulic cylinder extends and retracts at a high frequency and low amplitude, causing the vertical mold partition to move left and right under the drive of the lever. The swaying mechanism separates from the concrete slab. Then, the cylinder retracts, causing the pry bar to retract. Subsequently, the left and right sliding plates rise to a certain height under the drive of the hydraulic cylinder. The unloading positioning plate, pushed by the lifting hydraulic cylinder, pushes out the concrete slab and simultaneously locks the vertical formwork partition. After the concrete slab is completely removed, the left and right sliding plates and the unloading positioning plate continue to rise. After the lower bottom formwork, i.e., the bottom plate and the precast concrete slab, is removed and a new lower bottom formwork is placed, the left and right sliding plates and the unloading positioning plate descend with the vertical formwork partition, inserting the vertical formwork partition into the lower bottom formwork. Then, the unloading positioning plate rises to the highest point, and after the handle is retracted, the left and right sliding plates also rise to the highest point, waiting for the next operation.

[0012] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0013] 1. This invention has a reasonable structure, is simple to operate, and is convenient to use. It has a wide range of applications and is suitable for promotion and application.

[0014] 2. The entire mold assembly and disassembly process is basically automated by machinery, which reduces the heavy labor intensity of workers and can more effectively improve production efficiency.

[0015] 3. This invention is a special supporting equipment for demolding and installing vertical molds for precast reinforced concrete slabs. Attached Figure Description

[0016] Figure 1 This is a three-dimensional diagram of the overall structure of the present invention.

[0017] Figure 1a , Figure 1b , Figure 1c They are respectively Figure 1 The front view, top view, and left view.

[0018] Figure 2 This is a three-dimensional view of the sliding plate assembly of the present invention.

[0019] Figure 2a , Figure 2b They are Figure 2 The front view and the left view.

[0020] Figure 3 This is a perspective view of the loading and unloading positioning mechanism of the present invention.

[0021] Figure 3a , Figure 3b They are respectively Figure 3 The front view and the left view.

[0022] Figure 4 This is a three-dimensional diagram of the loosening assembly of the present invention.

[0023] Figure 4a , Figure 4b They are respectively Figure 4 The front view and the left view.

[0024] Figure 5a , Figure 5b They are Figure 2b The diagram shows the two states of the handle of the sliding plate assembly.

[0025] Figure 6a , Figure 6b They are Figure 4b The diagram shows two states of the loose assembly.

[0026] Figure 7 yes Figure 1 The three-dimensional view of the mold shown (10 is the positioning frame).

[0027] Figure 8 yes Figure 1 The diagram shows the base plate. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0029] See Figure 1 , Figure 2 , Figure 3 In order to efficiently produce concrete slabs, this invention provides a vertical mold assembly and disassembly device for slab production.

[0030] The structure of the sheet metal vertical mold assembly and disassembly device of the present invention is as follows: the main body of the device is divided into five parts. The first part is the frame 1, which is welded from steel structural profiles, effectively ensuring the strength and durability of the frame 1. The second part is the left sliding plate assembly 2, which mainly functions to lift the vertical mold partition. It consists of a lifting cylinder 211, an ear plate 212, a shaft 213, a sliding plate 214, a push-pull cylinder 215, a lever 216, a rotating shaft 217, and a handle. The components include bracket 218, handle 219, guide wheel 220, etc.; the third part is the right sliding plate assembly 3, whose structure is the same as the left sliding plate assembly 2; the fourth part is the upper unloading positioning mechanism 4, which has two main functions: one is to press down and push out the plate, and the other is to position the vertical mold partition plate. It mainly consists of mounting base 411, guide column 412, lifting cylinder 413, guide sleeve 414, fixed seat 415, lower plate 416, positioning plate clip 417, and positioning plate 418 (shaped similar to...). Figure 7 The fifth part is the loosening assembly 5, which mainly functions to separate the plate from the mold partition by high-frequency, low-amplitude left and right swinging to facilitate subsequent demolding. It consists of mounting plate 511, prying teeth 512, connecting shaft 513, push-pull shaft 514, fixing parts 515, oil cylinder 516, guide shaft 517, air cylinder 518, guide sleeve 519, bearing 520, shaft 521, fixed pulley 522, wire rope 523, etc.

[0031] Furthermore, the frame 1 is welded from steel structural profiles, which effectively ensures the strength and durability of the frame 1;

[0032] Furthermore, the left sliding plate assembly 2, whose main function is to lift the vertical mold partition, consists of a lifting cylinder 211, ear plate 212, shaft 213, sliding plate 214, push-pull cylinder 215, lever 216, rotating shaft 217, handle bracket 218, handle 219, guide wheel 220, etc.

[0033] Furthermore, the upper unloading positioning mechanism 4 has two main functions: first, to press down and push out the plate; and second, to position the vertical mold partition. It mainly consists of a mounting base 411, guide column 412, lifting cylinder 413, guide sleeve 414, fixed seat 415, lower plate 416, unloading positioning plate clamp 417, unloading positioning plate 418, fixed support 419, fixed shaft 420, etc.

[0034] Furthermore, the loosening assembly 5, whose main function is to separate the sheet metal from the mold partition by high-frequency, low-amplitude left and right swinging, facilitates subsequent demolding. It consists of mounting plate 511, prying teeth 512, connecting shaft 513, push-pull shaft 514, fixing parts 515, oil cylinder 516, guide shaft 517, air cylinder 518, guide sleeve 519, bearing 520, shaft 521, fixed pulley 522, wire rope 523, etc.

[0035] A vertical formwork assembly and disassembly device for concrete slabs includes a rectangular steel frame 1 with identical and symmetrical left and right sliding plate assemblies 2 and 3 on its wide side, serving as lifting and lowering partitions for the vertical formwork 6. The left sliding plate assembly consists of a sliding plate 214 parallel to the left side of the frame, with four roller pairs fixed to its left side. The four roller pairs are arranged in pairs, clamping two strip plates on the left side of the frame to form rolling pairs. Two handle brackets 218 are fixed to the lower right side of the sliding plate. A rotating shaft 217 is movably mounted on the two handle brackets, with each handle bracket having movable clamps on both sides. There are two handles 219, and both handles are fixed on the rotating shaft and together with the handle bracket form a movable jaw for gripping the lifting rod of the vertical mold 6. A push-pull cylinder 215 is hinged at the middle position of the upper part of the right side of the slide plate. The outer end of the piston rod of the push-pull cylinder is hinged to the upper end of the lever 216. The lower end of the lever is fixed to the middle of the rotating shaft 217. The lifting cylinder 211 is vertically installed on the lower left side frame of the machine frame. Two ear plates 212 are fixed on the upper middle part of the left side of the slide plate 214. The shaft 213 is longitudinally mounted on the two ear plates and is inserted and fixed in the hole on the piston rod of the lifting cylinder extending upward.

[0036] The loosening assembly used for high-frequency left and right swinging to separate the precast plate and partition plate inside the vertical mold 6 is as follows: the mounting plate 511 is fixed on two vertical steel bars on the rear side of the frame, two hydraulic cylinders 516 are longitudinally mounted on the rear side of the mounting plate, the piston rods of the two hydraulic cylinders extend from the rear to the front through holes in the mounting plate, two fixing parts 515 located inside the two hydraulic cylinders are set on the front side of the mounting plate, the push-pull shaft 514 is rotatably mounted laterally on the two fixing parts 515, the two outer ends of the push-pull shaft move through two holes on the two piston rods, and a tooth 512 is fixed on each of the two outer ends, two connecting rods 513 are laterally fixed between the two teeth, the cylinder 518 is set in the middle of the rear side of the mounting plate, and the steel wire rope 523 connected to the upper end of the piston rod of the cylinder passes around the fixed pulley 522 mounted on the frame and is connected to the upper connecting rod between the two teeth;

[0037] The upper unloading positioning mechanism is as follows: the base 411 is installed on two longitudinal steel bars on the top surface of the frame, the lifting cylinder 413 is vertically installed on the top surface of the base, the lower end of the piston rod of the lifting cylinder passes downward through the hole on the base and is fixed or hinged to the fixed shaft 420, the fixed shaft is mounted on two fixed supports 419 on the lower plate, the left and right sides of the lifting cylinder are respectively provided with the same guide structure, the guide structure is composed of the guide column 412 passing from top to bottom through the hole on the base and the sleeve 414 fixed on the bottom surface of the base, and then being fixedly connected to the fixed seat 415 on the lower plate, and three positioning plates 418 are fixed longitudinally on the bottom surface of the lower plate for positioning the partition plate of the vertical mold 6 and for pressing out the precast plate.

[0038] Figure 2aAs shown, the sliding board is rectangular or square. See also Figure 1 Two strip plates are welded to the left side of the frame. Figure 4 In the middle, two hydraulic cylinders are perpendicular to the mounting plate. Figure 4a As shown, the two teeth are fixed to the two outer ends of the push-pull shaft respectively.

[0039] All three positioning plates 418 are fixed in the following way: two pairs of vertical clamping plates are fixed on the bottom surface of the lower plate 416, and the positioning plates are clamped between the two pairs of vertical clamping plates and fixed by rivets or bolts; when the loosening assembly is not in use, the two teeth are in a vertical state. When in use, the piston rod of the cylinder 518 installed on the rear side of the mounting plate 511 extends upward and the steel wire rope 523 is lowered through the fixed pulley 522, so that the connecting rod drives the two teeth to pull down to a horizontal state, thereby making the two teeth press against all the partitions of the vertical mold 6. At this time, the start of the two oil cylinders makes the piston rod of the oil cylinder in a low amplitude extension and retraction condition. The partitions of the vertical mold 6 sway left and right under the action of the teeth and separate from the precast plate.

[0040] The roller pair structure consists of two parallel U-shaped plates, each with a rotating shaft mounted on it, and a roller fixed on each shaft.

[0041] The frame is fixed to the ground with anchor bolts.

[0042] The above-mentioned equipment's disassembly and assembly method includes the following steps: The vertical mold 6 (slab vertical mold) is used to pour reinforced concrete precast slabs on the pouring platform. After a certain period of time, once the concrete has solidified to a certain degree, a forklift or conveyor transports the vertical mold to the concrete slab vertical mold disassembly and assembly equipment. Once the position is set, the left and right sliding plates 214 descend to a certain height under the action of the hydraulic cylinder 211. Then, the push-pull cylinder 215 pulls the handle 219 together via the lever 216 and the rotating shaft 217 to grasp the vertical mold lifting rod. The cylinder 518 extends and lowers the lever 512 to lock the vertical mold partition. Then, the hydraulic cylinder 516 extends and retracts at a high frequency and low amplitude, causing the vertical mold partition to sway left and right under the action of the lever 512, separating it from the concrete slab. Open, then cylinder 518 retracts, driving the toothed gear 512 to retract. Then, the left and right sliding plates 214 rise to a certain height driven by cylinder 211. The unloading positioning plate 418 pushes out the concrete slab under the push of lifting cylinder 413 and simultaneously locks the vertical formwork partition. After the concrete slab is completely removed, the left and right sliding plates 214 and unloading positioning plate 418 continue to rise. After the bottom formwork, i.e. the bottom plate and the precast concrete slab, is removed and a new bottom formwork is placed, the left and right sliding plates 214 and unloading positioning plate 418 descend with the vertical formwork partition, inserting the vertical formwork partition into the bottom formwork. Then, the unloading positioning plate 418 rises to the highest point. After the handle 219 retracts, the left and right sliding plates 214 also rise to the highest point to wait for the next operation.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vertical formwork assembly and disassembly device for concrete slabs, characterized in that, The rectangular steel frame (1) has a left sliding plate assembly (2) and a right sliding plate assembly (3) with the same structure and symmetrical arrangement on the left and right sides of the wide side, which are used as partitions for lifting the vertical mold (6). The left sliding plate assembly is: a sliding plate (214) parallel to the left side of the frame has four pairs of rollers fixed on its left side. The four pairs of rollers are clamped in pairs on two strip plates on the left side of the frame to form a rolling pair. Two handle brackets (218) are fixed on the lower right side of the sliding plate. The rotating shaft (217) is movably mounted on the two handle brackets. Each handle bracket has two handles (219) movably clamped on both sides. Both handles are fixed on the rotating shaft and together with the handle bracket form a movable jaw for gripping the lifting rod of the vertical mold (6). A push-pull cylinder (215) is hinged at the middle position of the upper part of the right side of the sliding plate. The outer end of the piston rod of the push-pull cylinder is hinged to the upper end of the lever (216). The lower end of the lever is fixed in the middle of the rotating shaft (217). The lifting cylinder (211) is vertically installed on the lower left side frame of the machine frame. Two ear plates (212) are fixed in the upper middle part of the left side of the sliding plate (214). The shaft (213) is longitudinally mounted on the two ear plates, and the shaft (213) is inserted and fixed in the hole on the piston rod of the lifting cylinder extending upward. The loosening assembly used for high-frequency left-right swinging to separate the precast plate and partition plate inside the vertical mold (6) is as follows: the mounting plate (511) is fixed on two vertical steel bars on the rear side of the frame, two hydraulic cylinders (516) are longitudinally mounted on the rear side of the mounting plate, the piston rods of the two hydraulic cylinders extend from the rear to the front through holes in the mounting plate, two fixing parts (515) located inside the two hydraulic cylinders are set on the front side of the mounting plate, the push-pull shaft (514) is rotatably mounted laterally on the two fixing parts (515), the two outer ends of the push-pull shaft move through two holes on the two piston rods, and a tooth (512) is fixed on each of the two outer ends, two connecting rods (513) are laterally fixed between the two teeth, and the cylinder (518) The steel wire rope (523) connected to the upper end of the piston rod of the cylinder is located in the middle of the rear side of the mounting plate. It passes around the fixed pulley (522) mounted on the frame and is connected to the upper connecting rod between the two teeth. When the loosening assembly is not in use, the two teeth are in a vertical state. When in use, the piston rod of the cylinder (518) mounted on the rear side of the mounting plate (511) extends upward and lowers the steel wire rope (523) through the fixed pulley (522), so that the connecting rod drives the two teeth to pull down to a horizontal state, so that the two teeth are pressed against all the partitions of the vertical mold (6). At this time, the start of the two cylinders makes the piston rod of the cylinder in a low amplitude extension and retraction state. The partitions of the vertical mold (6) sway left and right under the action of the teeth and separate from the precast plate. The upper unloading positioning mechanism is as follows: the base (411) is installed on two longitudinal steel bars on the top surface of the frame, the lifting cylinder (413) is vertically installed on the top surface of the base, the lower end of the piston rod of the lifting cylinder passes through the hole on the base and is fixed or hinged to the fixed shaft (420), the fixed shaft is mounted on two fixed supports (419) on the lower plate, the left and right sides of the lifting cylinder are respectively provided with the same guide structure, the guide structure is formed by the guide column (412) passing through the hole on the base from top to bottom and the sleeve (414) fixed on the bottom surface of the base, and then being fixedly connected with the fixed seat (415) on the lower plate. The bottom surface of the lower plate is fixed longitudinally with three unloading positioning plates (418) used for positioning the partition plate of the vertical mold (6) and for pressing out the precast plate.

2. The apparatus according to claim 1, wherein the apparatus is characterized by: The three unloading positioning plates (418) are all fixed in the following way: two pairs of vertical clamping plates are fixed on the bottom surface of the lower plate (416), and the unloading positioning plates are clamped between the two pairs of vertical clamping plates and fixed by rivets or bolts.

3. The vertical formwork assembly and disassembly equipment for concrete slabs according to claim 1, characterized in that, The roller pair has the following structure: a rotating shaft is installed on each of the two parallel U-shaped plates, and a roller is fixed on the rotating shaft.

4. The vertical mold assembly and disassembly equipment for concrete slabs according to claim 1, characterized in that, The frame is fixed to the ground with anchor bolts.

5. A method for dismantling and assembling a vertical concrete slab mold using the dismantling and assembly equipment according to any one of claims 1 to 4, characterized in that, Includes the following steps: The vertical formwork for concrete slabs, namely the vertical formwork (6), is used to cast precast reinforced concrete slabs on the pouring platform. After a certain period of time, when the concrete has solidified to a certain degree, the vertical formwork is transported to the vertical formwork disassembly and assembly equipment by a forklift or conveyor. After the position is set, the left and right sliding plates are lowered to a certain height by the lifting cylinder (211). Then, the push-pull cylinder (215) pulls the handle (219) together with the lever (216) and the rotating shaft (217) to grab the lifting rod of the vertical formwork (6). The cylinder (518) extends and lowers the lever (512) to lock the vertical formwork partition. Then, the cylinder (516) extends and retracts at a high frequency and low amplitude, causing the vertical formwork partition to swing left and right and separate from the concrete slab under the action of the lever (512). Open, then the cylinder (518) retracts and drives the pry bar (512) to retract. Then the left and right sliding plates rise to a certain height under the drive of the lifting cylinder (211). The unloading positioning plate (418) pushes out the concrete slab under the push of the lifting cylinder (413) and simultaneously locks the vertical formwork partition. After the concrete slab is completely removed, the left and right sliding plates and the unloading positioning plate (418) continue to rise. After the bottom formwork, i.e. the bottom plate and the precast concrete slab, are removed and a new bottom formwork is placed, the left and right sliding plates and the unloading positioning plate (418) descend with the vertical formwork partition and insert the vertical formwork partition into the bottom formwork. Then the unloading positioning plate (418) rises to the highest point. After the handle (219) is retracted, the left and right sliding plates also rise to the highest point to wait for the next operation.

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