A mold for making concrete fence panels and a method of using the mold

Abstract

The present invention discloses a mold for making concrete fence panels and a method for using the same. The mold for making concrete fence panels includes an external side mold, an internal core mold and a lifting device; the external side mold is a frame-shaped mold for defining the boundary of the concrete fence panel; the internal core mold includes a core mold body and a connecting portion, the core mold body is used to form an inner groove of the concrete fence panel, the connecting portion is used to connect with the lifting device, and an operating space is formed between the external side mold and the lifting device; the lifting device is connected to the internal core mold through the connecting portion, and is used to lift and / or suspend the internal core mold. The above mold has high strength, accurate positioning, good molding, and is economical and efficient. The obtained concrete fence panel has more accurate dimensions than before, the degree of damage to the fence panel after demolding is greatly reduced, the production efficiency is significantly improved, and the labor intensity of the workers is significantly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of mold manufacturing, and in particular to a mold for manufacturing a concrete fence plate and a use method thereof. Background Art

[0002] Concrete fence panel facing is a kind of artificial block thin-surface wave-breaking structure on slope embankment widely used in embankment projects. It is slightly different from the wave-breaking principle of general twist king block, twist worker block and four-corner hollow block facing. It can make full use of its own concrete strength to effectively reduce waves, thereby reducing the height of waves and the impact on the wave-breaking wall, and improving the stability of the wave-breaking wall and the entire embankment; and it is economical.

[0003] In the existing anti-floating fence panel inner core formwork technology, the inner core formwork includes a formwork truss and openings on both sides of the formwork truss. The inner core formwork contains heavy mortar poured from the openings to increase the weight to prevent floating. Although the problem of large dimensional deviation is partially solved, the following problems are not fundamentally solved: the inner core formwork is poured with mortar, which increases the construction cost; the inner core formwork is connected with the truss, the entire inner core formwork is heavy, and the truss must be made of large-section profiles, which increases the production cost; and the outer formwork needs to be anchored; the inner core formwork is heavy, and a larger lifting machinery is required when dismantling the formwork, which increases the machinery cost and occupies a large area; when dismantling the formwork, the concrete that has not reached the strength will be impacted at the moment of lifting, causing damage, increasing the maintenance cost, and the problem of large dimensional deviation cannot be solved.

[0004] It can be seen that the production of existing concrete fences is often affected by various factors such as construction tools, processes and personnel, which often results in large deviations in the appearance geometric dimensions and the relative dimensions of the grilles. Inadequate control during demolding causes damage to the corners, and results in poor overall installation effects in the later stage, low production efficiency and increased construction costs. Summary of the invention

[0005] The present invention provides a mold for making a concrete fence plate and a use method thereof, which are used to solve at least one of the above-mentioned technical problems.

[0006] One aspect of the present invention provides a mold for making a concrete fence plate, the mold comprising an external side mold, an internal core mold and a lifting device; wherein,

[0007] The external side form is a frame type, used to define the boundaries of the concrete fence panel;

[0008] The inner core mold includes a core mold body and a connecting portion, wherein the core mold body is used to form an inner groove of the concrete fence plate, and the connecting portion is used to connect with the lifting device, and an operating space is formed between the outer side mold and the lifting device;

[0009] The lifting device is connected to the internal core mold through the connecting portion and is used for lifting and / or suspending the internal core mold.

[0010] Optionally, the mold further includes a lifting device, which is disposed on the outside of the external side mold and is used to adjust or position the height of the lifting device.

[0011] Optionally, the external side formwork is formed by connecting at least one side formwork, and the side formworks are fixed by bolts.

[0012] Optionally, a positioning support is provided on the upper end surface of the external side mold for supporting the lifting device. The positioning support is plate-shaped and welded to the external side mold. A groove for accommodating the lifting device is provided on the upper part of the positioning support.

[0013] Optionally, the core mold body is in the shape of an inverted trapezoid consisting of side plates, side plates, a top plate and a bottom plate, there is an angle between the side plates and the vertical plane, at least one support plate is arranged between the top plate and the bottom plate, and any one or more of the top plate, the bottom plate or the support plates are provided with air holes.

[0014] Optionally, the connecting portion includes a connecting pipe fixedly connected to the top plate, and a first connecting plate is fixed to the upper end of the connecting pipe.

[0015] Optionally, a ventilation hole cover plate is provided on the ventilation hole on the top plate.

[0016] Optionally, the lifting device is a frame-type structure, including two first longitudinal beams and two second transverse beams, the second transverse beams are provided with lifting ears, the bottom of the second transverse beams is provided with a second connecting plate, and the second connecting plate is provided corresponding to the first connecting plate.

[0017] Optionally, a transverse limiting portion is further provided at the bottom of the second transverse beam.

[0018] Another aspect of the present invention provides a method for using a mold for making a concrete fence panel, the method comprising the following steps:

[0019] S1. Clean the prefabrication site and place the external side mold on the prefabrication site;

[0020] S2, connect and fix the internal core mold and the lifting device together;

[0021] S3, placing the internal core mold and the lifting device in the external side mold by using a lifting device, and supporting and limiting the position by using the positioning support members on the external side mold;

[0022] S4, pouring concrete into the mold, smoothing the upper surface of the concrete and the top of the external side mold;

[0023] S5, when the specified demoulding strength is reached, the lifting devices on both sides of the lifting device work simultaneously to lift the lifting device evenly, and when the internal core mold and the concrete fence board are separated by a sufficient distance, the internal core mold and the lifting device are removed as a whole by using the lifting equipment;

[0024] S6, removing the external side mold, and the operation is completed.

[0025] Compared with the prior art, the advantages of the present invention are:

[0026] 1. High strength. The mold of the present invention is made of steel as a whole, and the internal core mold structure is firm. There is almost no loss during the turnover process, and it will not affect the use of the next turnover period.

[0027] 2. Accurate positioning: The technical solution of the present invention adopts multiple positioning and jacking structures to limit the up and down, left and right, front and back movements of the internal core mold, making the positioning of the external template more accurate.

[0028] 3. Good molding. Since the internal core mold is limited in all directions, the geometric dimensions of the manufactured concrete fence board are more accurate. The demoulding angle of the internal core mold reduces the damage to the concrete fence board when removing the mold. Since it is connected as a whole and then poured, the side mold does not need to be anchored, and the internal core mold does not need to worry about floating and causing movement. Even if there is movement, the side mold and the internal core mold move at the same time. The exhaust holes on the internal core mold reduce the vacuum zone formed at the bottom, making the disassembly force smaller and reducing the damage to the concrete fence board. Use the jacking device to remove the internal core mold first, which reduces the damage to the concrete fence board caused by the direct lifting impact of the lifting equipment.

[0029] 4. Easy to disassemble and assemble. After assembly and construction, you only need to push out the lifting device, lift it away using the lifting equipment, loosen the connecting bolts to disassemble the external side mold, and the installation is the reverse process.

[0030] 5. High efficiency, low labor intensity of workers, easy disassembly and assembly of formwork, and simple overall construction process.

[0031] In summary, the concrete fence panels obtained through the technical solution of the present invention are more accurate in size than before, the degree of damage to the fence panels after demolding is greatly reduced, the production efficiency is significantly improved, the labor intensity of workers is significantly reduced, and the expected effect is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are for reference and illustration only and are not intended to limit the scope of protection of the present invention. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings 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 making creative work are within the scope of protection of the present invention.

[0033] Figure 1 It is a schematic structural diagram of a mold for making a concrete fence panel in one embodiment of the present invention;

[0034] Figure 2 is a schematic structural diagram of an external side mold in one embodiment of the present invention;

[0035] Figure 3 is a schematic structural diagram of a positioning support member in one embodiment of the present invention;

[0036] Figure 4 is a schematic structural diagram of an internal core mold in one embodiment of the present invention;

[0037] Figure 5 is a schematic structural diagram of a core mold body in one embodiment of the present invention;

[0038] Figure 6 is a schematic structural diagram of a lifting device in one embodiment of the present invention;

[0039] Figure 7 It is a schematic structural diagram of a concrete fence panel in one embodiment of the present invention.

[0040] Reference numerals:

[0041] 1-external side mold; 2-internal core mold; 3-lifting device; 4-lifting device; 5-concrete fence board;

[0042] 11-external formwork; 12-positioning support; 13-bolt; 121-slot side; 122-slot bottom; 123-positioning support body; 21-core mold body; 22-connecting pipe; 23-first connecting plate; 24-air vent; 25-air vent cover; 211-side plate; 212-bottom plate; 213-support plate; 214-top plate; 215-side plate; 31-first longitudinal beam; 32-second transverse beam; 33-lifting ear; 34-second connecting plate; 35-transverse limiting part; 51-fence plate body; 52-inner groove. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0044] Example 1

[0045] like Figure 1-7 As shown in , Example 1 discloses a mold for making a concrete fence panel, wherein the mold includes an external side mold 1, an internal core mold 2 and a lifting device 3.

[0046] Specifically, the external side mold 1 is frame-shaped, preferably a square or circular structure, and can also be an irregular polygon. The external side mold 1 is used to define the boundary of the concrete fence board to form the main body of the concrete fence board.

[0047] Combination Figure 4 As shown, the internal core mold 2 includes a core mold body 21 and a connecting part (including a connecting pipe 22 and a first connecting plate 23), the core mold body 21 is used to form an inner groove of the concrete fence board during the pouring process, the connecting part is arranged at the top of the core mold body 21, and is used to connect with the lifting device, and according to the height of the connecting part itself, a space is formed between the external side mold 1 and the lifting device 3 for operators to perform smoothing operations on the upper surface of the concrete fence board.

[0048] Combination Figure 6 As shown, the lifting device 3 is connected to the internal core mold 2 through the connecting part in the internal core mold 2, and the connection is a detachable connection or welding, so as to lift and / or suspend the internal core mold 2, thereby realizing the positioning, jacking or lifting of the internal core mold 2 and other operations.

[0049] The above-mentioned mold has high strength, accurate positioning, good molding, and is economical and efficient. The resulting concrete fence panels are more accurate in size than before, the degree of damage to the fence panels after demolding is greatly reduced, the production efficiency is significantly improved, the labor intensity of workers is significantly reduced, and the expected effect is achieved.

[0050] In one embodiment, see Figure 1 As shown, the mold further includes a lifting device 4, which is arranged on the outside of the external side mold 1 and is used to lift, adjust or position the height of the lifting device. The lifting device 4 includes a cylinder, preferably a jack.

[0051] In one embodiment, see Figure 2 As shown, the external side mold 1 is formed by connecting at least one side mold plate 11. Figure 2The four side templates 11 are connected in sequence, and the side templates 11 are fixed by bolts 13. Figure 2 As shown, the cross section of the side template 11 is U-shaped, and the inner side close to the frame is a planar structure. Of course, according to design requirements, the side template 11 can also be other structures.

[0052] Furthermore, a positioning support 12 is fixedly provided on the upper end surface of the external side mold 1 for supporting the lifting device 3. The positioning support 12 is plate-shaped and welded to the external side mold 1, and a groove for accommodating the lifting device 3 is provided on the upper part of the positioning support 1.

[0053] See also Figure 3 As shown, the slot side 121 at the slot of the positioning support is used to limit the movement of the lifting device 3 in the longitudinal direction (the width direction of the external side mold), and the slot bottom 122 is used to limit the height of the lifting device 3. The shape of the positioning support body 123 is preferably a trapezoidal structure, which reduces the weight of the external side mold 1 while ensuring the strength and reducing the production cost.

[0054] It can be seen that the above-mentioned external side mold 1 is used to ensure the external shaping and geometric dimensions of the concrete fence board, and at the same time ensure the fixing of the lowering position and the front-back, left-right position of the cross beam in the lifting device 3. By fixing the lowering position of the cross beam in the lifting device 3, the upper and lower positions of the internal core mold in the concrete fence board 5 can be ensured, thereby fixing the upper and lower opening dimensions of the inner groove 52 of the concrete fence board 5; by fixing the front-back, left-right position of the cross beam in the lifting device 3, the relative positions of the four sides of the internal core mold and the four sides of the side mold plate 11 can be fixed, thereby ensuring the fixing of the position of the inner groove 52 of the fence board on the concrete fence board body 51.

[0055] In one embodiment, see Figure 4 As shown, the connection part includes a connection pipe 22 fixedly connected to the top plate, and a first connection plate 23 is fixed to the upper end of the connection pipe 22. The number of the connection parts is set according to the length and strength requirements of the internal core mold 2.

[0056] See also Figure 5 As shown, the core mold body 21 is an inverted frustum shaped, which is closed by side plates 211, side plates 215 (not shown), top plates 214 and bottom plates 212. Angles α and β are formed between the side plates 211 and the vertical plane, so that the core mold body has a certain inclination angle, thereby reducing damage to the concrete fence plate when the core mold body is pulled out.

[0057] Furthermore, at least one support plate 213 is disposed between the top plate 214 and the bottom plate 212 to ensure that the internal core mold body 21 has sufficient strength and rigidity.

[0058] according to Figure 4As shown, the top plate 214, the bottom plate 212 and the support plate 213 are all provided with air holes 24, and the air holes 24 on the top plate 214 are provided with air hole covers 25, which are preferably fixed to the top plate 214 on the side of the air holes 24 in a hinged manner. The air holes 24 prevent the bottom plate 212 from forming a vacuum with the ground during pouring, which makes it difficult to remove the mold and damages the concrete fence plate, and the air hole covers 25 can prevent concrete from entering the internal core mold cavity during pouring.

[0059] In one embodiment, see Figure 6 As shown, the lifting device 3 is a frame structure, preferably a square frame, including two first longitudinal beams 31 in the width direction and two second transverse beams 32 in the length direction. The second transverse beams 32 are the main force-bearing members for lifting the internal core mold and the lifting device as a whole. The second transverse beams 32 are provided with lifting ears 33, which are preferably welded to the second transverse beams 32 and are used as lifting points for lifting the internal core mold and the lifting device.

[0060] A second connecting plate 34 is disposed at the bottom of the second transverse beam 32 . The second connecting plate is disposed corresponding to the first connecting plate. The first connecting plate and the second connecting plate are preferably detachably connected by fixing screws or fixing bolts.

[0061] The lifting device is used to locate the position of the internal core mold 2 in the concrete fence board by determining its position, and it is also convenient to lift out the internal core mold 2 all at once when removing the mold.

[0062] Preferably, a transverse limiting portion 35 is further provided at the bottom of the second transverse beam 32, which can cooperate with the notch on the positioning support 12 to position the second transverse beam in the length direction, and is preferably welded by positioning angle steel.

[0063] In summary, the mold obtained by Example 1 can achieve the following technical effects: high strength, the mold of the present invention is an overall steel structure, the internal core mold structure is firm, there is almost no loss during the turnover process, and it will not affect the use of the next turnover period; accurate positioning, the technical solution of the present invention limits the up and down, left and right, front and back movement of the internal core mold by adopting multiple positioning and jacking structures, so that the positioning of the external template is more accurate; good molding, because the internal core mold is set to limit the direction of the geometric size of the manufactured concrete fence board is more accurate; the demolding angle of the internal core mold reduces the damage to the concrete fence board when the mold is removed; because it is connected as a whole and then poured , the side formwork does not need to be anchored, and the internal core formwork does not need to worry about floating and causing movement. Even if there is movement, the side formwork and the internal core formwork move at the same time; the exhaust holes on the internal core formwork can reduce the vacuum zone formed at the bottom, making the disassembly force smaller and reducing the damage to the concrete fence board; the internal core formwork is removed first by using the jacking device, reducing the damage to the concrete fence board caused by the direct lifting impact of the lifting equipment; it is easy to disassemble and assemble, and after assembly and construction, you only need to push out the lifting device, and then use the lifting equipment to lift it away, loosen the connecting bolts to remove the external side formwork, and the installation is the reverse process; it is highly efficient, the labor intensity of workers is low, the formwork is easy to disassemble and assemble, and the overall construction process is simple.

[0064] Example 2

[0065] Example 2 discloses a method for using a mold for making a concrete fence panel.

[0066] Specifically, the mold of this embodiment can adopt the following scheme but is not limited to the following scheme: the mold mainly includes an external side mold 1, an internal core mold 2 and a lifting device 3. The external side mold 1 is a frame-shaped, preferably a square or circular structure, and can also be an irregular polygon. The external side mold 1 is used to define the boundary of the concrete fence board and form the main body of the concrete fence board. The internal core mold 2 includes a core mold body 21 and a connecting part (including a connecting pipe 22 and a first connecting plate 23). The core mold body 21 is used to form an inner groove of the concrete fence board during the pouring process. The connecting part is arranged on the top of the core mold body 21 and is used to connect with the lifting device. According to the height of the connecting part itself, a space is formed between the external side mold 1 and the lifting device 3 for operators to perform smoothing operations on the upper surface of the concrete fence board. The lifting device 3 is connected to the internal core mold 2 via the connecting portion in the internal core mold 2, and the connection is a detachable connection or welding, so as to lift and / or suspend the internal core mold 2, thereby realizing operations such as positioning, jacking or lifting of the internal core mold 2.

[0067] Then, the method for using the mold for making concrete fence panels comprises the following steps:

[0068] S1. Clean the prefabrication site and place the external side mold on the prefabrication site;

[0069] S2, connect and fix the internal core mold and the lifting device together;

[0070] S3, placing the internal core mold and the lifting device in the external side mold by using a lifting device, and supporting and limiting the position by using the positioning support members on the external side mold;

[0071] S4, pouring concrete into the mold, smoothing the upper surface of the concrete and the top of the external side mold;

[0072] S5, when the specified demoulding strength is reached, the lifting devices on both sides of the lifting device work simultaneously to lift the lifting device evenly, and when the internal core mold and the concrete fence board are separated by a sufficient distance, the internal core mold and the lifting device are removed as a whole by using the lifting equipment;

[0073] S6, removing the external side mold, and the operation is completed.

[0074] It should be pointed out that the hoisting equipment is always working during the above process, or it can only play a hoisting role and not work during the initial setting of concrete. Instead, the lifting device 4 plays a role of fixing and positioning.

[0075] Specifically, the above-mentioned method of use is also a process of making a concrete fence board, preferably using the mold disclosed in Example 1, combined with Figure 1-7 In the embodiment shown, the above-mentioned use and production method specifically includes: 1. Cleaning the prefabrication site before assembling the side template 11;

[0076] 2. Arrange the side molds 11 symmetrically in pairs, fasten them with bolts 13, and assemble the external side molds 1;

[0077] 3. The first connecting plate 23 on the inner core mold 2 and the second connecting plate 34 on the lifting device 3 are firmly connected with connecting bolts to form an integral body;

[0078] 4. Use the on-site lifting equipment to lift the mold steadily through the lifting lugs 33 with a lifting rope, and place it in the external side mold 1, so that the ends of the second transverse beam are respectively placed in the notches of the four positioning support members 12, and are located in the two transverse positioning parts 35, so that the entire mold is connected as a whole;

[0079] 5. After the concrete pouring is completed and the specified demoulding strength is reached, two jacking devices 4 (preferably jacks) are respectively placed at the middle position of the lower part of the first longitudinal beam 31;

[0080] 6. The two lifting devices 4 work simultaneously to lift the lifting device evenly. When the internal core mold 2 and the concrete fence board are separated by a sufficient distance, the internal core mold 2 and the lifting device 3 are hoisted out as a whole through the lifting lugs 33 by a lifting device;

[0081] 7. Loosen the bolts 13 in the external side mold 1, remove the side mold plate 11, and the operation is completed.

[0082] Example 3

[0083] See also Figure 1-7 , Example 3 discloses a preferred mold for making concrete fence panels.

[0084] Specifically, the mold includes an external side mold 1, an internal core mold 2 and a lifting device 3. The external side mold 1 is a frame-shaped, preferably a square or circular structure, or an irregular polygon, and is used to define the boundary of the concrete fence board to form the main body of the concrete fence board.

[0085] The internal core mold 2 includes a core mold body 21 and a connecting part, the connecting part includes a connecting pipe 22 and a first connecting plate 23. The core mold body 21 is used to form an inner groove of the concrete fence board during the pouring process. The connecting part is arranged on the top of the core mold body 21 and is used to connect with the lifting device. According to the height of the connecting part itself, a space is formed between the external side mold 1 and the lifting device 3 for operators to perform smoothing and other operations on the upper surface of the concrete fence board.

[0086] The lifting device 3 is connected to the internal core mold 2 through the connection part in the internal core mold 2, and the connection is a detachable connection or welding, so as to lift and / or suspend the internal core mold 2, and realize the positioning, jacking or lifting of the internal core mold 2. The above mold has high strength, accurate positioning, good molding and economic efficiency. The obtained concrete fence board is more accurate in size than before, the degree of damage to the fence board after demolding is greatly reduced, the production efficiency is significantly improved, the labor intensity of the workers is significantly reduced, and the expected effect is achieved.

[0087] The mold further comprises a lifting device 4, which is arranged on the outside of the external side mold 1 and is used to lift and adjust or position the height of the lifting device. The lifting device 4 comprises an oil cylinder, preferably a jack.

[0088] The external side mold 1 is formed by connecting at least one side mold plate 11. Figure 2 The four side templates 11 are connected in sequence, and the side templates 11 are fixed by bolts 13. Figure 2As shown, the cross section of the side template 11 is U-shaped, and the inner side close to the frame is a planar structure. Of course, according to design requirements, the side template 11 can also be other structures.

[0089] A positioning support 12 is fixedly provided on the upper end surface of the external side mold 1 for supporting the lifting device 3 . The positioning support 12 is plate-shaped and welded to the external side mold 1 . A notch for accommodating the lifting device 3 is provided on the upper portion of the positioning support 1 .

[0090] The slot side 121 at the slot of the positioning support is used to limit the movement of the lifting device 3 in the longitudinal direction (the width direction of the external side mold), and the slot bottom 122 is used to limit the height of the lifting device 3. The shape of the positioning support body 123 is preferably a trapezoidal structure, which reduces the weight of the external side mold 1 while ensuring the strength, thereby reducing the production cost.

[0091] The above-mentioned external side mold 1 is used to ensure the external shaping and geometric dimensions of the concrete fence board, and at the same time ensure the fixing of the lowering position and the front-back, left-right position of the cross beam in the lifting device 3. By fixing the lowering position of the cross beam in the lifting device 3, the upper and lower positions of the internal core mold in the concrete fence board 5 can be ensured, thereby fixing the upper and lower opening dimensions of the inner groove 52 of the concrete fence board 5; by fixing the front-back, left-right position of the cross beam in the lifting device 3, the relative positions of the four sides of the internal core mold and the four sides of the side mold plate 11 can be fixed, thereby ensuring the fixing of the position of the inner groove 52 of the fence board on the concrete fence board body 51.

[0092] The connection part includes a connection pipe 22 fixedly connected to the top plate, and a first connection plate 23 is fixed to the upper end of the connection pipe 22. The number of the connection parts is set according to the length and strength requirements of the internal core mold 2.

[0093] The core mold body 21 is in the shape of an inverted frustum consisting of a side plate 211, a side plate 215 (not shown), a top plate 214 and a bottom plate 212. There are angles α and β between the side plate 211 and the vertical plane, so that the core mold body has a certain inclination angle, reducing damage to the concrete fence board when the core mold body is pulled out.

[0094] Furthermore, at least one support plate 213 is disposed between the top plate 214 and the bottom plate 212 to ensure that the internal core mold body 21 has sufficient strength and rigidity.

[0095] Furthermore, the top plate 214, the bottom plate 212 and the support plate 213 are all provided with air holes 24, and the air holes 24 on the top plate 214 are provided with air hole covers 25, which are preferably fixed to the top plate 214 on the side of the air holes 24 by hinges. The air holes 24 prevent the bottom plate 212 from forming a vacuum with the ground during pouring, which makes it difficult to remove the mold and damages the concrete fence plate, and the air hole covers 25 can prevent concrete from entering the internal core mold cavity during pouring.

[0096] The lifting device 3 is a frame-type structure, preferably a square frame, including two first longitudinal beams 31 in the width direction and two second transverse beams 32 in the length direction. The second transverse beams 32 are the main force-bearing parts for lifting the internal core mold and the lifting device as a whole. The second transverse beams 32 are provided with lifting ears 33, which are preferably welded to the second transverse beams 32 and are used as the lifting points for lifting the internal core mold and the lifting device.

[0097] A second connecting plate 34 is disposed at the bottom of the second transverse beam 32 . The second connecting plate is disposed corresponding to the first connecting plate. The first connecting plate and the second connecting plate are preferably detachably connected by fixing screws or fixing bolts.

[0098] The lifting device is used to locate the position of the internal core mold 2 in the concrete fence board by determining its position, and it is also convenient to lift out the internal core mold 2 all at once when removing the mold.

[0099] A transverse limiting portion 35 is also provided at the bottom of the second transverse beam 32, which can cooperate with the notch on the positioning support 12 to position the second transverse beam in the length direction, and is preferably welded by positioning angle steel.

[0100] Example 4

[0101] This embodiment 4 provides a method for manufacturing the above concrete fence board using the mold disclosed in the above embodiment 3. The mold includes an external side mold 1, an internal core mold 2 and a lifting device 3. The external side mold 1 is a frame-shaped, preferably a square or circular structure, or an irregular polygon, and the external side mold 1 is used to define the boundary of the concrete fence board to form the main body of the concrete fence board.

[0102] Then, the production steps of the concrete fence panel mainly include:

[0103] S1. Clean the prefabrication site and place the external side mold on the prefabrication site;

[0104] S2, connect and fix the internal core mold and the lifting device together;

[0105] S3, placing the internal core mold and the lifting device in the external side mold by using a lifting device, and supporting and limiting the position by using the positioning support members on the external side mold;

[0106] S4, pouring concrete into the mold, smoothing the upper surface of the concrete and the top of the external side mold;

[0107] S5, when the specified demoulding strength is reached, the lifting devices on both sides of the lifting device work simultaneously to lift the lifting device evenly, and when the internal core mold and the concrete fence board are separated by a sufficient distance, the internal core mold and the lifting device are removed as a whole by using the lifting equipment;

[0108] S6, removing the external side mold, and the operation is completed.

[0109] In conjunction with the preferred mold structure for making concrete fence panels shown in Example 3, the specific implementation process includes:

[0110] 1. Clean the prefabrication site before assembling the side formwork 11;

[0111] 2. Arrange the side molds 11 symmetrically in pairs, fasten them with bolts 13, and assemble the external side molds 1;

[0112] 3. The first connecting plate 23 on the inner core mold 2 and the second connecting plate 34 on the lifting device 3 are firmly connected with connecting bolts to form an integral body;

[0113] 4. Use the on-site lifting equipment to lift the mold steadily through the lifting lugs 33 with a lifting rope, and place it in the external side mold 1, so that the ends of the second transverse beam are respectively placed in the notches of the four positioning support members 12, and are located in the two transverse positioning parts 35, so that the entire mold is connected as a whole;

[0114] 5. After the concrete pouring is completed and the specified demoulding strength is reached, two jacking devices 4 (preferably jacks) are respectively placed at the middle position of the lower part of the first longitudinal beam 31;

[0115] 6. The two lifting devices 4 work simultaneously to lift the lifting device evenly. When the internal core mold 2 and the concrete fence board are separated by a sufficient distance, the internal core mold 2 and the lifting device 3 are hoisted out as a whole through the lifting lugs 33 by a lifting device;

[0116] 7. Loosen the bolts 13 in the external side mold 1, remove the side mold plate 11, and the operation is completed.

[0117] The mold and manufacturing process used in the above-mentioned production can obtain the following advantages:

[0118] 1. High strength. The mold of the present invention is made of steel as a whole, and the internal core mold structure is firm. There is almost no loss during the turnover process, and it will not affect the use of the next turnover period.

[0119] 2. Accurate positioning: The technical solution of the present invention adopts multiple positioning and jacking structures to limit the up and down, left and right, front and back movements of the internal core mold, making the positioning of the external template more accurate.

[0120] 3. Good molding. Since the internal core mold is limited in all directions, the geometric dimensions of the manufactured concrete fence board are more accurate. The demoulding angle of the internal core mold reduces the damage to the concrete fence board when removing the mold. Since it is connected as a whole and then poured, the side mold does not need to be anchored, and the internal core mold does not need to worry about floating and causing movement. Even if there is movement, the side mold and the internal core mold move at the same time. The exhaust holes on the internal core mold reduce the vacuum zone formed at the bottom, making the disassembly force smaller and reducing the damage to the concrete fence board. Use the jacking device to remove the internal core mold first, which reduces the damage to the concrete fence board caused by the direct lifting impact of the lifting equipment.

[0121] 4. Easy to disassemble and assemble. After assembly and construction, you only need to push out the lifting device, lift it away using the lifting equipment, loosen the connecting bolts to disassemble the external side mold, and the installation is the reverse process.

[0122] 5. High efficiency, low labor intensity of workers, easy disassembly and assembly of formwork, and simple overall construction process.

[0123] Among them, the concrete fence panels produced in this way are more precise in size than before, the degree of damage to the fence panels after demolding is greatly reduced, the production efficiency has been significantly improved, the labor intensity of workers has been significantly reduced, and the expected results have been achieved.

[0124] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0125] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0126] In the description of the invention, moreover, the terms "first", "second", "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", "third" may explicitly or implicitly include one or more of the features.

[0127] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A mold for making a concrete fence panel, characterized in that: The mold includes an external side mold, a plurality of internal core molds and a lifting device; wherein, The external side form is a frame type, used to define the boundaries of the concrete fence panel; Each of the internal core molds comprises a core mold body and a connecting portion, and the core mold body is used to form an inner groove of the concrete fence board; The core mold body and the lifting device have a preset distance in the longitudinal direction, one end of the connecting portion is connected to the lifting device, and the other end extends downward in the axial direction and is connected to the core mold body; and further includes: A positioning support member, used for supporting and positioning the lifting device. When the lifting device is positioned on the positioning support member, the lifting device is spaced above the external side mold, and an operating space is formed between the two. The lifting device is used to lift and / or suspend the internal core mold.

2. The mold according to claim 1, characterized in that: The mold further comprises a lifting device, which is arranged on the outside of the external side mold and is used to adjust or position the height of the lifting device.

3. The mold according to claim 1, characterized in that: The external side mold is formed by connecting at least one side mold plate, and the side mold plates are fixed by bolts.

4. The mold according to claim 1, characterized in that: The positioning support is welded to the upper end surface of the external side mold; The positioning support is in the shape of a plate, and a notch for accommodating the lifting device is arranged on the upper portion of the positioning support.

5. The mold according to any one of claims 1 to 4, characterized in that: The core mold body is in the shape of an inverted trapezoid which is closed by side plates, side plates, a top plate and a bottom plate. There is an angle between the side plates and the vertical plane. At least one support plate is arranged between the top plate and the bottom plate. Any one or more of the top plate, the bottom plate or the support plate are provided with air holes.

6. The mold according to claim 5, characterized in that: The connecting portion includes a connecting pipe fixedly connected to the top plate, and a first connecting plate is fixed to the upper end of the connecting pipe.

7. The mold according to claim 5, characterized in that: The air holes on the top plate are provided with air hole cover plates.

8. The mold according to claim 6, characterized in that: The lifting device is a frame-type structure, including two first longitudinal beams and two second transverse beams, the second transverse beams are provided with lifting ears, the bottom of the second transverse beams is provided with a second connecting plate, and the second connecting plate is arranged corresponding to the first connecting plate.

9. The mold according to claim 8, characterized in that: A transverse limiting portion is also provided at the bottom of the second transverse beam.

10. A method for using the mold for making a concrete fence panel according to any one of claims 1 to 9, characterized in that: The method of use comprises the following steps: S1. Clean the prefabrication site and place the external side mold on the prefabrication site; S2, connect and fix the internal core mold and the lifting device together; S3, placing the internal core mold and the lifting device in the external side mold by using a lifting device, and supporting and limiting the position by using the positioning support members on the external side mold; S4, pouring concrete into the mold, smoothing the upper surface of the concrete and the top of the external side mold; S5, when the specified demoulding strength is reached, the lifting devices placed on both sides of the lifting device work simultaneously to lift the lifting device evenly, and when the internal core mold and the concrete fence board are separated by a sufficient distance, the internal core mold and the lifting device are removed as a whole by using the lifting equipment; S6, removing the external side mold, and the operation is completed.

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