Form removal tool for prefabricated cover plate

Abstract

The invention relates to the technical field of mechanical engineering, in particular to a prefabricated cover plate form removal tool which comprises a main frame of a rectangular frame type structure, two tail columns arranged at the two end point positions of one adjacent long edge of the main frame in a mirroring mode, and two guide plates arranged on the bottom faces of two short edges of the main frame in a mirroring mode. The ends of the two guide plates abut against the two tail columns correspondingly, the two fulcrum mechanisms are arranged on the two tail columns in a mirroring mode, the two auxiliary mechanisms are arranged on the two guide plates in a mirroring mode, and the two ends of the pull rod are rotationally connected to the outer walls of the two guide plates correspondingly. The prefabricated cover plate form removal tool has the advantages of being simple in structure, convenient to operate, capable of saving labor force and the like.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical engineering, and in particular to a prefabricated cover plate demoulding tool. Background Art

[0002] During the construction of sewage treatment plants, concrete materials are usually used for the covers of cable trenches and drainage ditches. However, due to the variety of cover design types and different reinforcement requirements, the demand is often insufficient to support the construction of a mechanized prefabrication site, so construction mainly relies on manual operations. At present, prefabricated cover plates generally use integral plastic molds. After the concrete is poured and reaches the demolding strength, the mold needs to be manually flipped to remove the prefabricated cover plate. This process requires a lot of manpower and is not only labor-intensive, but also has low demolding efficiency, which leads to extended construction periods and increased costs, making it difficult to meet the requirements of large-scale engineering projects for efficient construction. Contents of the invention The purpose of the present invention is to provide a prefabricated cover plate demoulding tool to solve the problems of low manual demoulding efficiency and high labor intensity in the prior art. The prefabricated cover plate demoulding tool of the present invention has the characteristics of simple structure, easy operation, and labor saving.

[0003] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a prefabricated cover plate demoulding tool, comprising: The main frame is a rectangular frame structure; Two tail posts, mirror-imaged at two end points of a long side of the main frame; Two guide plates are mirror-imaged on the bottom surfaces of the two short sides of the main frame, and the ends of the two guide plates are respectively abutted against the two tail pillars; Two fulcrum mechanisms are mirror-imaged on the two tail pillars; Two auxiliary mechanisms are arranged on the two guide plates in a mirror-image manner; A pull rod, both ends of which are rotatably connected to the outer walls of the two guide plates; The auxiliary mechanism includes: A support plate is arranged on the guide plate, a top surface of the support plate and a bottom surface of the main frame are spaced apart to form an activity cavity, a bottom surface of the support plate and the guide plate are spaced apart to form a storage cavity, and a plurality of through grooves are evenly formed on the top surface of the support plate; Two eccentric shafts are arranged on the guide plate in a direction perpendicular to the extension direction of the support plate, and the ends of the two eccentric shafts pass through the side wall of the guide plate; An auxiliary plate, rotatably disposed on the two eccentric shafts; A plurality of auxiliary protrusions are arranged at equal intervals on the top surface of the auxiliary plate; The transmission assembly is arranged on the side wall of the guide plate and connected with the two eccentric shafts.

[0004] Preferably, the end of the support plate away from the tail column is in an arc-shaped structure, and is connected to the guide plate to form a sloped structure.

[0005] Preferably, the vertical height of the auxiliary protrusion is greater than the thickness of the support plate.

[0006] Preferably, the eccentricity of the eccentric shaft is e, the width of the auxiliary protrusion is w, and the width of the through slot in the extending direction of the support plate is W. 槽 ≥w+e.

[0007] Preferably, the transmission assembly comprises: Two first transmission wheels, respectively disposed at the ends of the two eccentric shafts; A first transmission belt, mounted on the two first transmission wheels; a second transmission wheel, the second transmission wheel being coaxially arranged with one of the first transmission wheels; a swing arm, one end of which is rotatably disposed on the second transmission wheel; A shaft rod, rotatably disposed at the other end of the swing arm; A third transmission wheel, disposed at one end of the shaft; A second transmission belt is installed on the second transmission wheel and the third transmission wheel; A driving wheel is mounted on the other end of the shaft; A support arm, one end of which is mounted on the swing arm; An adjusting wheel is rotatably mounted on the other end of the supporting arm, and the adjusting wheel abuts against the upper part of the arc outer wall of the pull rod.

[0008] Preferably, the swing arm rotates around one end thereof, and the rotation axis of the swing arm and the rotation axis of the second transmission wheel are located at the same position.

[0009] Preferably, the pull rod is capable of elastic deformation.

[0010] Preferably, a baffle bar is provided on the side wall of the main frame, and the baffle bar is located on the moving path of the pull rod.

[0011] A prefabricated cover plate demolding tool proposed in the present invention has the beneficial effect that: the present invention utilizes an eccentric shaft to drive the auxiliary plate to perform periodic angular swings, thereby causing the auxiliary protrusion to reciprocate in the through groove; when the template ear plate of the prefabricated cover plate is located on the support plate, along with the movement of the main frame, the auxiliary protrusion can promote the relative movement between the main frame and the template, thereby reducing labor intensity, especially when demolding prefabricated cover plates with a larger width, thereby saving manpower and improving demolding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the main framework of the present invention; Figure 3 It is a schematic diagram of the auxiliary mechanism of the present invention; Figure 4 It is a schematic diagram of the eccentric shaft of the present invention; Figure 5 It is a schematic diagram of the transmission assembly of the present invention; Figure 6 It is a schematic diagram of the fulcrum mechanism of the present invention.

[0013] In the figure: 1, main frame, 2, tail column, 3, guide plate, 4, fulcrum mechanism, 41, pillar, 42, adjusting groove, 43, slide groove, 44, card slot, 45, support rod, 46, roller, 5, auxiliary mechanism, 51, support plate, 52, through groove, 53, eccentric shaft, 54, auxiliary plate, 55, auxiliary protrusion, 56, transmission assembly, 5601, first transmission wheel, 5602, first transmission belt, 5603, second transmission wheel, 5604, swing arm, 5605, shaft rod, 5606, third transmission wheel, 5607, second transmission belt, 5608, driving wheel, 5609, support arm, 5610, adjusting wheel, 5611, reinforcement plate, 6, pull rod, 7, stop rod. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figure 1-6 The present invention provides a technical solution for a prefabricated cover plate demoulding tool, and its detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process, and the specific work is as follows.

[0016] A prefabricated cover plate demoulding tool comprises: a main frame 1, two tail posts 2, two guide plates 3, two fulcrum mechanisms 4, two auxiliary mechanisms 5 and a pull rod 6.

[0017] The main frame 1 is a rectangular frame structure. The main frame 1 is welded from four angle steels, including two longer angle steels and two shorter angle steels. These angle steels are welded together in a rectangular arrangement to form a solid frame structure and fixed together by welding connection points to ensure the stability and strength of the frame. The angle steel specification is 40*5mm, which makes the main frame 1 have higher strength and rigidity. At the same time, the angle steel is usually produced in a standardized manner with uniform specifications and sizes, easy to obtain and replace, and has greater convenience. Compared with other structural materials, the cost of angle steel is relatively low. At the same time, its high strength and durability make it very cost-effective in long-term use. The two tail posts 2 are mirror-set at two adjacent nodes of the main frame 1. The two tail posts 2 also use angle steels of the same specification and are set at both ends of a longer angle steel of the main frame 1. The two guide plates 3 are mirror-set on the bottom surfaces of the two short sides of the main frame 1, and the ends of the two guide plates 3 are respectively abutted on the two tail posts 2. The two guide plates 3 use angle steels of the same specification as the main frame 1. At the same time, the two guide plates The inner corners of the two guide plates 3 are facing inwards. The installation area of ​​the prefabricated cover plate ear plate is between the horizontal ends of the two guide plates 3 and the bottom surface of the main frame 1. The proximal ends of the two guide plates 3 away from the two tail pillars 2 are respectively corresponding to the side walls of the two tail pillars 2. The distal ends of the two guide plates 3 away from the two tail pillars 2 are open, and the prefabricated cover plate ear plates are inserted from there. The two fulcrum mechanisms 4 are mirror-set on the two tail pillars 2. The two fulcrum mechanisms 4 provide a fixed support point for the entire device. When the main frame 1 is tilted away from the side of the tail pillar 2, the fulcrum mechanism 4 will serve as the center of the circle. The two auxiliary mechanisms 5 are mirror-imaged on the two guide plates 3. The ear plate of the prefabricated cover plate is located between the auxiliary mechanism 5 and the main frame 1 and abuts against the auxiliary mechanism 5. The auxiliary mechanism 5 is utilized to promote the relative movement between the ear plate and the main frame 1, thereby achieving the effect of reducing labor intensity and saving labor. The two ends of the pull rod 6 are respectively rotatably connected to the outer walls of the two guide plates 3. The pull rod 6 is a U-shaped structure. The far end of the pull rod 6 from the main frame 1 is the operating end. The operator can hold it with one hand or both hands to move or lift the main frame 1.

[0018] The auxiliary mechanism 5 includes: a support plate 51 , two eccentric shafts 53 , an auxiliary plate 54 , a plurality of auxiliary protrusions 55 and a transmission assembly 56 .

[0019] The support plate 51 is arranged on the guide plate 3, and there is a gap between the top surface of the support plate 51 and the bottom surface of the main frame 1 to form an active cavity. There is a gap between the bottom surface of the support plate 51 and the guide plate 3 to form a storage cavity. A plurality of through grooves 52 are evenly opened on the top surface of the support plate 51. The active cavity is the active area of ​​the ear plate of the prefabricated cover plate, and the storage cavity is the installation area of ​​the auxiliary mechanism 5. Two eccentric shafts 53 are arranged on the guide plate 3 in a direction perpendicular to the extension direction of the support plate 51, and the ends of the two eccentric shafts 53 pass through the side wall of the guide plate 3. The two eccentric shafts 53 will rotate synchronously, and the auxiliary plate 54 rotates. Placed on two eccentric shafts 53, the auxiliary plate 54 rotates under the drive of the two eccentric shafts 53, and a number of auxiliary protrusions 55 are arranged at equal intervals on the top surface of the auxiliary plate 54, and when stationary, the number of auxiliary protrusions 55 correspond to the through grooves 52, and with the movement of the auxiliary plate 54 and the direction of movement, the number of auxiliary protrusions 55 will intermittently move in the through grooves 52, and the transmission assembly 56 is arranged on the side wall of the guide plate 3 and is connected to the two eccentric shafts 53. The two eccentric shafts 53 are driven by the transmission assembly 56 to make the two eccentric shafts 53 rotate synchronously.

[0020] The end of the support plate 51 away from the tail column 2 is in an arc-shaped structure and is connected to the guide plate 3 to form a sloped structure. When the ear plate of the prefabricated cover plate is inserted into the support plate 51, a smoother insertion is achieved, friction and resistance are reduced, and at the same time, the ear plate is prevented from being inserted into the storage cavity and causing damage to the auxiliary mechanism 5.

[0021] The vertical height of the auxiliary protrusion 55 is greater than the thickness of the support plate 51. When the auxiliary protrusions 55 perform periodic motion with the auxiliary plate 54, the top ends of the auxiliary protrusions 55 will be higher than the top surface of the support plate 51 and fit with the ear plate abutting against the top surface of the support plate 51.

[0022] The eccentricity of the eccentric shaft 53 is e, the width of the auxiliary protrusion 55 is w, and the width W of the through slot 52 in the extension direction of the support plate 51 is ≥w+e, which ensures that the auxiliary protrusion 55 moves from outside the through slot 52 to inside the through slot 52, and moves from one side to the other side in the through slot 52, and finally moves out of the through slot 52 without colliding with the support plate 51 or getting stuck.

[0023] The transmission assembly 56 includes: two first transmission wheels 5601 , a first transmission belt 5602 , a second transmission wheel 5603 , a swing arm 5604 , a shaft 5605 , a third transmission wheel 5606 , a second transmission belt 5607 , a driving wheel 5608 , a support arm 5609 and an adjusting wheel 5610 .

[0024] The two first transmission wheels 5601 are respectively arranged at the ends of the two eccentric shafts 53, and the first transmission belt 5602 is installed on the two first transmission wheels 5601. The first transmission belt 5602 and the first transmission wheel 5601 include but are not limited to using a flat belt and a flat wheel, which can ensure that the two first transmission wheels 5601 rotate synchronously, that is, ensure that the two eccentric shafts 53 rotate synchronously, and the second transmission wheel 5603 is coaxially arranged with one of the first transmission wheels 5601, that is, the second transmission wheel 5603 is coaxially arranged with the first transmission wheel 5601 close to the tail column 2, and the second transmission wheel 5603 rotates synchronously with the first transmission wheel 5601 close to the tail column 2. One end of the swing arm 5604 is rotatably arranged on the second transmission wheel 5603, and there is no interference between the swing arm 5604 and the second transmission wheel 5603, and both can rotate freely. In order to ensure the stability of the rotation of the swing arm 5604, a reinforcing plate 5 is arranged at the turning point of the swing arm 5604. 611, one end of the reinforcing plate 5611 is arranged on the outer wall of the guide plate 3, the other end of the reinforcing plate 5611 is arranged on the axis of the swing arm 5604, the shaft 5605 is rotatably arranged on the other end of the swing arm 5604, the third transmission wheel 5606 is arranged on one end of the shaft 5605, the second transmission belt 5607 is installed on the second transmission wheel 5603 and the third transmission wheel 5606, the driving wheel 5608 is installed on the other end of the shaft 5605, and the driving wheel 5608 One end of the support arm 5609, which rotates synchronously with the third transmission wheel 5606 and can transmit torque, is installed on the swing arm 5604. The adjusting wheel 5610 is rotatably installed on the other end of the support arm 5609, and the adjusting wheel 5610 abuts against the upper arc outer wall of the pull rod 6. When the pull rod 6 is lifted, it can cooperate with the support arm 5609 to rotate the swing arm 5604, thereby changing the position of the driving wheel 5608, and can be connected to the fulcrum mechanism 4 to realize power transmission.

[0025] The swing arm 5604 can rotate around one end thereof, and the rotation axis of the swing arm 5604 and the rotation axis of the second transmission wheel 5603 are located at the same position, ensuring that during the rotation of the swing arm 5604, the second transmission belt 5607 is always kept taut to connect the second transmission wheel 5603 and the third transmission wheel 5606.

[0026] The fulcrum mechanism 4 includes a support column 41 , a support rod 45 and a roller 46 .

[0027] The support column 41 is arranged on the tail column 2, and the extension direction of the support column 41 is in the same direction as the tail column 2. The top surface of the support column 41 is provided with an adjustment groove 42 that penetrates the bottom surface of the support column 41. The two side walls of the support column 41 that are not in contact with the tail column 2 are respectively provided with a slide groove 43 and at least two clamping grooves 44. The slide groove 43 is provided in the extension direction of the vertical guide plate 3. At least two clamping grooves 44 are distributed along the extension direction of the support column 41 and are provided on the side walls adjacent to the slide groove 43. At least two clamping grooves 44 are connected to the slide groove 43. The support rod 45 is in an L-shaped structure. The vertical direction of the support rod 45 is The end is inserted into the adjustment groove 42 and can slide up and down along the slide groove 43, and rotate 90 degrees at the center of the top circle of the vertical end of the support rod 45. The horizontal end of the support rod 45 can be clamped in the clamping groove 44 to fix the position of the support rod 45. The height of the support rod 45 can be adjusted by clamping in the clamping grooves 44 at different heights. The roller 46 is rotatably installed at the end of the horizontal end of the support rod 45. When the support rod 45 is clamped in the clamping groove 44, the roller 46 and the driving wheel 5608 are located on the same plane, and there is sufficient friction after the two are in contact to realize the transmission of power.

[0028] The pull rod 6 can produce elastic deformation, and the side wall of the main frame 1 is provided with a baffle 7, which is located on the moving path of the pull rod 6. When the prefabricated cover plate moves to the range of the main frame 1, the pull rod 6 is in a lifting state, and the driving wheel 5608 and the roller 46 are in contact to transmit power. At this time, there is a gap between the pull rod 6 and the baffle 7. When the prefabricated cover plate is completely moved into the main frame 1, the pull rod 6 is lifted instantly, and the pull rod 6 produces elastic bending. The main frame 1 is in a relative stillness at this time, and the pull rod 6 collides with the baffle 7 to generate force transmission. Repeating the action of instantly lifting the pull rod 6 can help demold the prefabricated cover plate.

[0029] Working principle: First, adjust the height of the roller 46 according to the thickness of the prefabricated cover plate, select the slot 44 of appropriate height, so that the bottom surface of the movable cavity is slightly higher than the ear plate of the prefabricated cover plate, and then pull the pull rod 6 horizontally. At this time, there is no contact between the driving force and the roller 46. After the ear plate enters the movable cavity, pull the operating end of the pull rod 6, the pull rod 6 rotates, and with the support arm 5609, the swing arm 5604 will rotate, and the driving wheel 5608 and the roller 46 will abut against each other. At the same time, under the action of the gravity of the main frame 1 and the prefabricated cover plate, sufficient friction is generated between the driving force and the roller 46 to transmit power. With the second transmission belt 5607, the second transmission wheel 5603 and the third transmission wheel 5606, the two first transmission wheels 5601 will rotate synchronously, and the auxiliary plate 54 will operate. , several auxiliary protrusions 55 will move regularly in the through groove 52. When the prefabricated cover moves from outside the main frame 1 to inside the main frame 1, the auxiliary protrusions 55 move horizontally in the through groove 52 from the far end of the guide plate 3 to the near end of the tail column 2. At this time, the ear plate abutting on the support plate 51 is under the action of the auxiliary protrusions 55. As the main frame 1 moves, the prefabricated cover will be plugged into the main frame 1. At this time, the pull rod 6 is instantly lifted, and a collision occurs between the pull rod 6 and the blocking rod 7. The force transmission is utilized to help the demolding of the prefabricated cover. When the demolding is completed, the main frame 1 is pushed in the reverse direction, and the roller 46 rotates in the reverse direction. At this time, the auxiliary plate 54 runs in the reverse direction, and the auxiliary protrusions 55 will move in the reverse direction to help the template to be separated from the main frame 1, making demolding more labor-saving and reducing labor intensity.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated cover plate demoulding tool, characterized in that: include: The main frame (1) is a rectangular frame structure; Two tail posts (2) are arranged in a mirror-like manner at two end points of a long side of the main frame (1); Two guide plates (3) are mirror-imaged on the bottom surfaces of the two short sides of the main frame (1), and one end of each of the two guide plates (3) is respectively abutted against the two tail pillars (2); Two fulcrum mechanisms (4) are arranged in a mirror-like manner on the two tail pillars (2); Two auxiliary mechanisms (5) are arranged on the two guide plates (3) in a mirror-like manner; A pull rod (6), the two ends of which are rotatably connected to the outer walls of the two guide plates (3); The auxiliary mechanism (5) comprises: A support plate (51) is arranged on the guide plate (3); a gap is formed between the top surface of the support plate (51) and the bottom surface of the main frame (1) to form an activity cavity; a gap is formed between the bottom surface of the support plate (51) and the guide plate (3) to form a storage cavity; and a plurality of through grooves (52) are evenly formed on the top surface of the support plate (51); Two eccentric shafts (53) are arranged on the guide plate (3) in a direction perpendicular to the extension direction of the support plate (51), and the ends of the two eccentric shafts (53) penetrate the side wall of the guide plate (3); An auxiliary plate (54) rotatably disposed on the two eccentric shafts (53); A plurality of auxiliary protrusions (55) are arranged at equal intervals on the top surface of the auxiliary plate (54); The transmission assembly (56) is arranged on the side wall of the guide plate (3) and is connected to the two eccentric shafts (53).

2. A prefabricated cover plate demoulding tool according to claim 1, characterized in that: The end of the support plate (51) away from the tail column (2) is in an arc-shaped structure, and is connected to the guide plate (3) to form a sloped structure.

3. The prefabricated cover plate demoulding tool according to claim 1, characterized in that: The vertical height of the auxiliary protrusion (55) is greater than the thickness of the support plate (51).

4. The prefabricated cover plate demoulding tool according to claim 1, characterized in that: The eccentricity of the eccentric shaft (53) is e, the width of the auxiliary protrusion (55) is w, and the width of the through slot (52) in the extension direction of the support plate (51) is W. 槽 ≥w+e.

5. A prefabricated cover plate demoulding tool according to claim 1, characterized in that: The transmission assembly (56) comprises: Two first transmission wheels (5601) are respectively arranged at the ends of the two eccentric shafts (53); A first transmission belt (5602) is installed on the two first transmission wheels (5601); A second transmission wheel (5603), wherein the second transmission wheel (5603) is coaxially arranged with one of the first transmission wheels (5601); a swing arm (5604), one end of which is rotatably disposed on the second transmission wheel (5603); A shaft (5605) is rotatably disposed at the other end of the swing arm (5604); A third transmission wheel (5606) is disposed at one end of the shaft (5605); A second transmission belt (5607) is installed on the second transmission wheel (5603) and the third transmission wheel (5606); A driving wheel (5608) is mounted on the other end of the shaft (5605); A support arm (5609), one end of the support arm (5609) being mounted on the swing arm (5604); The adjusting wheel (5610) is rotatably mounted on the other end of the supporting arm (5609), and the adjusting wheel (5610) abuts against the upper arc outer wall of the pull rod (6).

6. The prefabricated cover plate demoulding tool according to claim 1, characterized in that: The swing arm (5604) rotates around one end thereof, and the rotation axis of the swing arm (5604) and the rotation axis of the second transmission wheel (5603) are located at the same position.

7. The prefabricated cover plate demoulding tool according to claim 1, characterized in that: The pull rod (6) is capable of elastic deformation.

8. The prefabricated cover plate demoulding tool according to claim 1, characterized in that: A blocking rod (7) is provided on the side wall of the main frame (1), and the blocking rod (7) is located on the moving path of the pull rod (6).

Images