Cement block preparation device for water conservancy project and use method of cement block preparation device

Abstract

The invention relates to the field of water conservancy projects, in particular to a cement block preparation device for water conservancy projects and a using method thereof.The cement block preparation device comprises a base, a plurality of mold assemblies are arranged on the base, two driving assemblies are symmetrically arranged above the base, and a transmission assembly is arranged in the base; the mold assembly comprises a mold frame, a fixing frame, a supporting rod and a pressing plate, the supporting rod is fixed to the upper end of the base, a bottom plate is fixedly arranged at the upper end of the supporting rod and can penetrate through the mold frame, the fixing frames are fixed to the top of the mold frame, and the multiple fixing frames are connected through connecting rods; at the moment, the bottom plate can eject out the shaped cement blocks in the mold frame, the cement blocks in the mold frame do not need to be demolded manually in sequence, labor can be saved, batch demolding can be achieved, and the demolding efficiency of the cement blocks can be improved.

Description

Technical Field

[0001] The invention relates to the field of water conservancy projects, and in particular to a cement block preparation device for water conservancy projects and a use method thereof. Background Art

[0002] Cement blocks are a type of building material that uses cement as the main raw material, combined with other industrial waste (such as slag, fly ash, etc.) or local materials. The application of cement blocks in water conservancy projects is mainly reflected in the following aspects: reservoir dam construction, channel construction, and slope protection projects.

[0003] During the production process, cement blocks need to be cured and formed. However, when the existing cement block production device is used, the concrete slurry needs to be poured into the mold. When the concrete slurry is poured into the mold, a bulge will appear on the top of the slurry, which needs to be manually smoothed, otherwise it will affect the surface flatness of the block.

[0004] At the same time, for the unloading of the blocks after molding, the mold needs to be manually disassembled, and then the blocks in the mold need to be taken out, which will make the demoulding process of the cement blocks very difficult, thereby reducing the production efficiency of the cement blocks. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a cement block preparation device for water conservancy projects and a method of using the same.

[0007] (II) Technical solution

[0008] To achieve the above object, the present invention provides the following technical solutions: a cement block preparation for water conservancy projects, comprising a base, a plurality of mold assemblies are arranged on the base, two drive assemblies are symmetrically arranged above the base, and a transmission assembly is arranged inside the base;

[0009] The mold assembly includes a mold frame, a fixed frame, a support rod and a pressure plate, wherein the support rod is fixed to the upper end of the base, a bottom plate is fixedly arranged on the upper end of the support rod, and the bottom plate can penetrate the mold frame, the fixed frame is fixed to the top of the mold frame, a plurality of the fixed frames are connected by connecting rods, and side blocks are fixedly arranged on the outer sides of the fixed frames at both ends of the base, and the pressure plate is located above the mold frame, and a plurality of the pressure plates are connected by arc plates;

[0010] The transmission assembly includes a first screw, a second rotating shaft, a first motor and a box body, the first screw is located at both ends of the base, and the first screw can penetrate the side block and be threadedly connected to the side block, the bottom of the first screw is rotatably connected to the base, and the lower end of the first screw is provided with a bottom block located inside the base, the first motor is fixed to one side of the base, the box body is fixed inside the base, and the box body is located in the middle part of the base, a support seat fixed inside the base is rotatably provided on the second rotating shaft, the outer end of the second rotating shaft is provided with a second driving block meshed with the bottom block, the inner end of the second rotating shaft is provided with a transmission block located inside the box body, the output end of the first motor is provided with a first rotating shaft penetrating the base and inserted into the box body, and one end of the first rotating shaft is provided with a first driving block meshed with the transmission block;

[0011] The driving assembly includes a second motor, a top seat, a third rotating shaft, a movable seat and a support rod, the top seat is fixed at both ends of the base, the second motor is fixed to the outer side of one of the top seats, the top seat is provided with a slide groove, the movable seat can move inside the slide groove, and the bottom end of the movable seat is provided with a detachable positioning seat, the top end of the support rod is rotatably connected to the positioning seat, the bottom end of the support rod is rotatably provided with a fixed seat, the fixed seat is fixed to the upper ends of the two pressure plates, the output end of the second motor is connected to the third rotating shaft, and two second screws that penetrate the movable seat are symmetrically arranged on the third rotating shaft, and the two second screws are reverse thread structures.

[0012] In order to facilitate the movement of the base, the present invention has the following improvements: a plurality of support components are provided at the lower end of the base, the support components include support legs, and bottom wheels are provided at the bottom ends of the support legs.

[0013] In order to facilitate the assembly of the pressure plate, the improvements of the present invention are that the two ends of the arc plate are fixed to the upper end of the pressure plate by screws, the fixed seat is fixed to the upper end of the pressure plate by screws, the bottom of the movable seat is provided with a positioning groove, the inner wall of the positioning groove is provided with a clamping groove, the upper end of the positioning seat is provided with a positioning block inserted into the positioning groove, two cavities and an empty groove are symmetrically arranged on both sides of the positioning block, a bent rod is provided inside the cavity, the upper end of the bent rod is provided with a clamping block inserted into the clamping groove, the lower end of the cavity is provided with a pressing block located outside the empty groove, a plurality of springs are fixedly arranged inside the empty groove, the two ends of the pressing block are connected to the springs, and the pressing block can be pressed into the inside of the empty groove.

[0014] In order to increase the service life of the mold frame, the present invention is improved in that a plurality of buffer pads fixed at the four corners of the mold frame are provided at the bottom of the mold frame.

[0015] In order to facilitate demoulding of cement blocks, the present invention has the following improvements: an annular groove is provided on the circumferential side of the pressing plate, an oiling ring is fixedly arranged inside the annular groove, the oiling ring is composed of an elastic rope and an oil absorbing layer, and the oil absorbing layer wraps the elastic rope.

[0016] In order to improve the stability of the pressure plate when it is lifted or lowered, the improvements of the present invention are that a limit rod is vertically arranged on the connecting rod in the middle part of the base, and the limit rod can pass through the arc plate located above it, and the limit rod is provided with a first limit block for limiting the arc plate, and the first limit block is threadedly connected to the limit rod, and guide rods passing through the arc plate are provided on the connecting rods at both ends of the base, and the arc plate can be lifted or lowered along the guide rods.

[0017] Furthermore, the present invention is improved in that the top end of the first screw is provided with a second limit block for limiting the side block, and the lower end of the second limit block is provided with an insertion rod inserted into the first screw, and the insertion rod is threadedly connected to the first screw.

[0018] A method for preparing cement blocks for water conservancy projects comprises the following steps:

[0019] Step 1: Fill the formwork frame with cement slurry using designated cement slurry filling equipment;

[0020] Step 2: Use the driving assembly to make multiple side blocks descend synchronously so that the side blocks can enter the interior of the mold frame;

[0021] Step 3: Move the base to the designated position and wait for the slurry in the mold frame to set;

[0022] Step 4: After the slurry is shaped, multiple side blocks are synchronously raised through the driving assembly;

[0023] Step 5: The two first screws can be rotated synchronously through the transmission assembly, and the two side blocks can be synchronously lowered along the first screws. At this time, multiple mold frames will be synchronously lowered above the base, and the bottom plate can push out the formed cement blocks in the mold frames.

[0024] Furthermore, the present invention has been improved in that, before the first step of operation, an oiling ring with oil is first fixed to the peripheral side of the pressure plate, so that the pressure plate is first lowered and then raised, which can provide an oiling effect for the inner wall of the mold frame.

[0025] (III) Beneficial effects

[0026] Compared with the prior art, the present invention provides a cement block preparation device for water conservancy projects and a method for using the same, which has the following beneficial effects:

[0027] The cement block preparation device and the use method for water conservancy projects have multiple pressing plates that can be synchronously lowered into the mold frame, and can provide a flattening effect on the cement slurry inside the mold frame. At this time, it is not necessary to manually smooth it step by step, which can not only save labor but also improve the smoothing efficiency of the cement slurry and improve the surface flatness of the cement block.

[0028] After the first screw is rotated, the side block can drive the fixed frame to descend through the effect of the thread structure, so that the fixed frame can drive multiple mold frames to descend. The fixed frame can be fixed to the top of the mold frame by screws. When the mold frame is descended, the bottom plate can push out the cement blocks that have been shaped in the mold frame because the position of the bottom plate is fixed. At this time, there is no need to manually demould the cement blocks in the mold frame one by one, which not only saves labor but also enables batch demoulding, and can improve the demoulding efficiency of the cement blocks.

[0029] Fixing an oiling ring with oil on the peripheral side of the pressing plate, so that the pressing plate first descends and then rises, can provide an oiling effect on the inner wall of the mold frame, which can reduce the friction between the cement blocks and the inner wall of the mold frame, and thus make the cement blocks easier to demould. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a top view of the three-dimensional structure of the present invention;

[0031] Figure 2 For the present invention Figure 1 Rear view of

[0032] Figure 3 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0033] Figure 4 For the present invention Figure 1 A schematic diagram of the local enlarged structure at B in the middle;

[0034] Figure 5 It is a schematic diagram of the docking structure between the moving seat and the positioning seat in the present invention;

[0035] Figure 6 It is a schematic diagram of the docking structure between the bottom block and the second driving block in the present invention;

[0036] Figure 7 It is a structural schematic diagram of the box body in the present invention;

[0037] Figure 8 It is a schematic diagram of the docking structure between the first driving block and the transmission block in the present invention;

[0038] Fig. 9 is a cross-sectional view of the oil smear ring of the present invention;

[0039] In the figure: 1, base; 2, mold frame; 3, support rod; 4, bottom plate; 5, fixed frame; 6, first limit block; 7, buffer pad; 8, side block; 9, first screw; 10, second limit block; 11, elastic rope; 12, bottom wheel; 13, first motor; 14, bottom block; 15, support seat; 16, second rotating shaft; 17, second driving block; 18, transmission block; 19, first driving block; 20, first rotating shaft; 21, box body; 22, top seat; 23, third rotating shaft; 24, second screw; 25, moving seat; 26, positioning seat; 27, support rod; 28, pressure plate; 29, arc plate; 30, connecting rod; 31, guide rod; 32, second motor; 33, limit rod; 34, positioning groove; 35, positioning block; 36, cavity; 37, bending rod; 38, pressing block; 39, empty groove; 40, slot; 41, oil smear ring; 42, oil absorption layer. DETAILED DESCRIPTION

[0040] 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.

[0041] See also Figure 1-9 , a cement block preparation for water conservancy projects, comprising a base 1, a plurality of mold assemblies are arranged on the base 1, two driving assemblies are symmetrically arranged above the base 1, and a transmission assembly is arranged inside the base 1;

[0042] The mold assembly includes a mold frame 2, a fixed frame 5, a support rod 3 and a pressing plate 28. The support rod 3 is fixed to the upper end of the base 1. The upper end of the support rod 3 is fixedly provided with a bottom plate 4, and the bottom plate 4 can penetrate the mold frame 2. The fixed frame 5 is fixed to the top of the mold frame 2. A plurality of the fixed frames 5 are connected by a connecting rod 30. The fixed frames 5 located at both ends of the base 1 are fixedly provided with side blocks 8 on their outer sides. The pressing plate 28 is located above the mold frame 2, and a plurality of the pressing plates 28 are connected by an arc plate 29.

[0043] The transmission assembly includes a first screw rod 9, a second rotating shaft 16, a first motor 13 and a box body 21, wherein the first screw rod 9 is located at both ends of the base 1, and the first screw rod 9 can penetrate the side block 8 and be threadedly connected with the side block 8, the bottom of the first screw rod 9 is rotatably connected with the base 1, and the lower end of the first screw rod 9 is provided with a bottom block 14 located inside the base 1, the first motor 13 is fixed to one side of the base 1, the box body 21 is fixed inside the base 1, and the box body 21 is located in the middle part of the base 1, a support seat 15 fixed inside the base 1 is rotatably provided on the second rotating shaft 16, a second driving block 17 meshing with the bottom block 14 is provided at the outer end of the second rotating shaft 16, a transmission block 18 located inside the box body 21 is provided at the inner end of the second rotating shaft 16, an output end of the first motor 13 is provided with a first rotating shaft 20 penetrating the base 1 and inserted into the box body 21, and one end of the first rotating shaft 20 is provided with a first driving block 19 meshing with the transmission block 18;

[0044] The driving assembly includes a second motor 32, a top seat 22, a third rotating shaft 23, a moving seat 25 and a support rod 27, wherein the top seat 22 is fixed at both ends of the base 1, the second motor 32 is fixed to the outer side of one of the top seats 22, a slide groove is provided on the top seat 22, the moving seat 25 can move inside the slide groove, and a detachable positioning seat 26 is provided at the bottom end of the moving seat 25, the top end of the support rod 27 is rotatably connected to the positioning seat 26, the bottom end of the support rod 27 is rotatably provided with a fixed seat, and the fixed seat is fixed to the upper ends of the two pressing plates 28, the output end of the second motor 32 is connected to the third rotating shaft 23, and two second screws 24 penetrating the moving seat 25 are symmetrically provided on the third rotating shaft 23, and the two second screws 24 are reverse thread structures;

[0045] A method for preparing cement blocks for water conservancy projects comprises the following steps:

[0046] Step 1: Fill the mold frame 2 with cement slurry through the designated cement slurry filling equipment; it should be noted that the filling equipment is quantitative filling, and the filling tube can be a metal tube or a rubber tube, which can make it convenient for the staff to take it;

[0047] Step 2: The driving assembly is used to synchronously lower the multiple side blocks 8 so that the side blocks 8 can enter the interior of the mold frame 2; when the cement slurry is filled, the second motor 32 is started, so that the third rotating shaft 23 can drive the two second screws 24 to rotate synchronously, and at this time, the two moving seats 25 will synchronously move in opposite directions in the slide slot, so that the support rod 27 can gradually change from tilted to vertical, and then the multiple pressing plates 28 can be synchronously lowered to the interior of the mold frame 2, which can provide a flattening effect for the cement slurry inside the mold frame 2. At this time, it is not necessary to manually smooth it step by step, which can not only save labor, but also improve the smoothing efficiency of the cement slurry and the surface flatness of the cement blocks;

[0048] Step 3: Move the base 1 to the designated position and wait for the slurry in the mold frame 2 to be shaped; when the cement slurry is smoothed, move the base 1 to the designated position;

[0049] Step 4: After the slurry is shaped, the multiple side blocks 8 are synchronously raised through the driving assembly;

[0050] Step 5: The two first screw rods 9 can be rotated synchronously through the transmission assembly, and the two side blocks 8 can be synchronously lowered along the first screw rods 9. At this time, the multiple mold frames 2 will be synchronously lowered above the base 1, and the bottom plate 4 can push out the cement blocks formed in the mold frames 2;

[0051] When the cement slurry in the mold frame 2 is shaped, the pressing plate 28 is first raised to the specified position, and then the first motor 13 is started, so that the first rotating shaft 20 can drive the first driving block 19 to rotate, and further the transmission block 18 can drive the second rotating shaft 16 to rotate through the meshing effect, and the second driving block 17 can drive the bottom block 14 to rotate through the meshing effect, so that the two first screw rods 9 can rotate synchronously. Here, there is no mandatory regulation on the number of first screw rods 9 and the number of mold assemblies. If the volume of this structure is small, only one first screw rod 9 is needed, and the other The first screw rod 9 can be replaced with a cylindrical structure. When the first screw rod 9 rotates, the side block 8 can drive the fixed frame 5 to descend through the effect of the threaded structure, so that the fixed frame 5 can drive multiple mold frames 2 to descend. The fixed frame 5 is fixed to the top of the mold frame 2 by screws. When the mold frame 2 descends, since the position of the bottom plate 4 is fixed, the bottom plate 4 can push out the cement blocks that have been formed in the mold frame 2. At this time, there is no need to manually demold the cement blocks in the mold frame 2 one by one, which not only saves labor but also enables batch demolding, thereby improving the demolding efficiency of the cement blocks.

[0052] In this structure, a plurality of support components are provided at the lower end of the base 1, and the support components include support legs. A bottom wheel 12 is provided at the bottom end of the support leg. The bottom wheel 12 can be a universal wheel and has a self-locking component that can lock the position of the bottom wheel 12.

[0053] When the pressure plate 28 is damaged, it is necessary to reassemble the pressure plate 28. The two ends of the arc plate 29 are fixed to the upper end of the pressure plate 28 by screws, and the fixed seat is fixed to the upper end of the pressure plate 28 by screws. The bottom of the movable seat 25 is provided with a positioning groove 34, and the inner wall of the positioning groove 34 is provided with a card slot 40. The upper end of the positioning seat 26 is provided with a positioning block 35 inserted into the positioning groove 34. Two cavities 36 and an empty groove 39 are symmetrically arranged on both sides of the positioning block 35. A bent rod 37 is provided inside the cavity 36, and a card block inserted into the card slot 40 is provided at the upper end of the bent rod 37. A pressing block 38 located outside the empty groove 39 is provided at the lower end of the cavity 36. A plurality of springs are fixed inside the empty groove 39. The two ends of the pressing block 38 are connected to the springs, and the pressing block 38 can be pressed into the inside of the empty groove 39. Figure 5 As shown, the spring can provide an elastic force to the pressing block 38, so that the card block can be installed more firmly in the card slot 40. Pressing the pressing block 38 can compress the spring, and the pressing block 38 will enter the interior of the empty slot 39. At this time, the bent rod 37 will move inside the cavity 36, so that the card block can enter the interior of the cavity 36, and the card block will be separated from the card slot 40 at this time. Then, a downward force is provided to the cavity 36, and the positioning block 35 can be pulled out of the positioning slot 34, so that the positioning seat 26 and the movable seat 25 can be separated. Finally, the screws on the fixed seat can be loosened, so that the pressure plate 28 can be easily reassembled.

[0054] After the mold frame 2 is lowered, it will collide with the base 1, which may easily damage the base 1 and the mold frame 2. The bottom of the mold frame 2 is provided with a plurality of buffer pads 7 fixed at the four corners of the mold frame 2. The buffer pads 7 can be made of rubber material. Through the provided buffer pads 7, the mold frame 2 will not directly collide with the base 1 after it is lowered, which can increase the service life of the base 1 and the mold frame 2.

[0055] If the friction between the cement block and the inner wall of the mold frame 2 is too large, it will make it difficult to demold the cement block. An annular groove is provided on the circumferential side of the pressing plate 28, and an oiling ring 41 is fixedly arranged inside the annular groove. The oiling ring 41 is composed of an elastic rope 11 and an oil absorbing layer 42, and the oil absorbing layer 42 wraps the elastic rope 11. Before the first step of the operation, the oiling ring 41 with oil is first fixed to the circumferential side of the pressing plate 28, so that the pressing plate 28 is first lowered and then raised, which can provide an oiling effect on the inner wall of the mold frame 2, reduce the friction between the cement block and the inner wall of the mold frame 2, and thus make the cement block easier to demold. The elastic rope 11 can be an elastic rubber ring, which can make the oiling ring 41 easy to assemble.

[0056] When the pressing plate 28 is lifted or lowered, the arc plate 29 lacks a guide structure, which will affect the stability of the pressing plate 28 during lifting or lowering. A limit rod 33 is vertically arranged on the connecting rod 30 in the middle part of the base 1. The limit rod 33 can penetrate the arc plate 29 located above it. A first limit block 6 for limiting the position of the arc plate 29 is arranged on the limit rod 33. The first limit block 6 is threadedly connected to the limit rod 33. The connecting rods 30 at both ends of the base 1 are provided with guide rods 31 that penetrate the arc plate 29. The arc plate 29 can be raised and lowered along the guide rod 31. When the pressure plate 28 is raised and lowered, the arc plates 29 at both ends of the base 1 will move along the guide rod 31, and the arc plate 29 in the middle part of the base 1 will move along the limit rod 33, which can provide a guide structure for the arc plate 29 and improve the stability of the pressure plate 28 during lifting and lowering. Finally, the first limit block 6 is fixed on the limit rod 33. The arc plate 29 at the limit rod 33 can be limited by the first limit block 6, which can make the pressure plate 28 more stable when in use.

[0057] Furthermore, a second limit block 10 for limiting the side block 8 is provided at the top end of the first screw rod 9, and an insertion rod inserted into the first screw rod 9 is provided at the lower end of the second limit block 10. The insertion rod is threadedly connected to the first screw rod 9. The second limit block 10 can prevent the side block 8 from falling off at the top of the first screw rod 9.

[0058] In the description of this article, it should be noted that relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0059] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A method for preparing cement blocks for water conservancy projects, characterized in that: It comprises a base (1), a plurality of mold assemblies are arranged on the base (1), two drive assemblies are symmetrically arranged above the base (1), and a transmission assembly is arranged inside the base (1); The mold assembly comprises a mold frame (2), a fixed frame (5), a support rod (3) and a pressure plate (28), wherein the support rod (3) is fixed to the upper end of the base (1), a bottom plate (4) is fixedly arranged at the upper end of the support rod (3), and the bottom plate (4) can penetrate the mold frame (2), the fixed frame (5) is fixed to the top of the mold frame (2), a plurality of the fixed frames (5) are connected by a connecting rod (30), and side blocks (8) are fixedly arranged on the outer sides of the fixed frames (5) located at both ends of the base (1), and the pressure plate (28) is located above the mold frame (2), and a plurality of the pressure plates (28) are connected by an arc plate (29); The transmission assembly comprises a first screw rod (9), a second rotating shaft (16), a first motor (13) and a box body (21); the first screw rod (9) is located at both ends of the base (1), and the first screw rod (9) can penetrate the side block (8) and is threadedly connected to the side block (8); the bottom of the first screw rod (9) is rotatably connected to the base (1), and the lower end of the first screw rod (9) is provided with a bottom block (14) located inside the base (1); the first motor (13) is fixed to one side of the base (1); the box body (21) is fixed inside the base (1), and the box body (21) ) is located in the middle part of the base (1), a support seat (15) fixed inside the base (1) is rotatably arranged on the second rotating shaft (16), a second driving block (17) meshing with the bottom block (14) is arranged at the outer end of the second rotating shaft (16), a transmission block (18) located inside the box body (21) is arranged at the inner end of the second rotating shaft (16), and a first rotating shaft (20) penetrating the base (1) and inserted into the box body (21) is arranged at the output end of the first motor (13), and a first driving block (19) meshing with the transmission block (18) is arranged at one end of the first rotating shaft (20); The driving assembly comprises a second motor (32), a top seat (22), a third rotating shaft (23), a movable seat (25) and a support rod (27), wherein the top seat (22) is fixed at both ends of the base (1), the second motor (32) is fixed at the outer side of one of the top seats (22), a slide groove is provided on the top seat (22), the movable seat (25) can move inside the slide groove, and a detachable positioning seat (26) is provided at the bottom end of the movable seat (25), the top end of the support rod (27) is rotatably connected to the positioning seat (26), the bottom end of the support rod (27) is rotatably provided with a fixed seat, and the fixed seat is fixed to the upper ends of the two pressing plates (28), the output end of the second motor (32) is connected to the third rotating shaft (23), and two second screws (24) penetrating the movable seat (25) are symmetrically provided on the third rotating shaft (23), and the two second screws (24) are reverse thread structures.

2. The preparation method of cement blocks for water conservancy projects according to claim 1, characterized in that: A plurality of support components are provided at the lower end of the base (1), and the support components include support legs, and bottom ends of the support legs are provided with bottom wheels (12).

3. The preparation method of cement blocks for water conservancy projects according to claim 2, characterized in that: The two ends of the arc plate (29) are fixed to the upper end of the pressing plate (28) by screws, and the fixed seat is fixed to the upper end of the pressing plate (28) by screws. The bottom of the movable seat (25) is provided with a positioning groove (34), and the inner wall of the positioning groove (34) is provided with a clamping groove (40). The upper end of the positioning seat (26) is provided with a positioning block (35) inserted into the positioning groove (34). Two cavities (36) and an empty groove (39) are symmetrically arranged on both sides of the positioning block (35). A bent rod (37) is provided inside the cavity (36), and a clamping block inserted into the clamping groove (40) is provided at the upper end of the bent rod (37). A pressing block (38) located outside the empty groove (39) is provided at the lower end of the cavity (36). A plurality of springs are fixed inside the empty groove (39), and the two ends of the pressing block (38) are connected to the springs, and the pressing block (38) can be pressed into the inside of the empty groove (39).

4. The preparation method of cement blocks for water conservancy projects according to claim 3, characterized in that: The bottom of the mold frame (2) is provided with a plurality of buffer pads (7) fixed at the four corners of the mold frame (2).

5. The preparation method of cement blocks for water conservancy projects according to claim 4, characterized in that: An annular groove is provided on the circumferential side of the pressing plate (28), an oiling ring (41) is fixedly arranged inside the annular groove, the oiling ring (41) is composed of an elastic rope (11) and an oil absorbing layer (42), and the oil absorbing layer (42) wraps the elastic rope (11).

6. The preparation method of cement blocks for water conservancy projects according to claim 5, characterized in that: A limit rod (33) is vertically arranged on the connecting rod (30) in the middle part of the base (1), and the limit rod (33) can penetrate the arc plate (29) located above it. A first limit block (6) for limiting the arc plate (29) is arranged on the limit rod (33), and the first limit block (6) is threadedly connected to the limit rod (33). Guide rods (31) penetrating the arc plate (29) are arranged on the connecting rods (30) at both ends of the base (1), and the arc plate (29) can be raised and lowered along the guide rods (31).

7. The preparation method of cement blocks for water conservancy projects according to claim 6, characterized in that: The top end of the first screw rod (9) is provided with a second limiting block (10) for limiting the position of the side block (8), and the lower end of the second limiting block (10) is provided with an insertion rod inserted into the first screw rod (9), and the insertion rod is threadedly connected to the first screw rod (9).

8. A method for preparing cement blocks for water conservancy projects, characterized in that: The following steps are involved: Step 1: Filling the mold frame (2) with cement slurry using designated cement slurry filling equipment; Step 2: using a driving assembly to synchronously lower the plurality of side blocks (8) so that the side blocks (8) can enter the interior of the mold frame (2); Step 3: Move the base (1) to a designated position and wait for the slurry in the mold frame (2) to be shaped; Step 4: After the slurry is shaped, the multiple side blocks (8) are synchronously raised by the driving assembly; Step 5: The two first screw rods (9) can be rotated synchronously through the transmission assembly, and the two side blocks (8) can be synchronously lowered along the first screw rods (9). At this time, the multiple mold frames (2) will be synchronously lowered above the base (1), and the bottom plate (4) can push out the cement blocks that have been formed in the mold frames (2).

9. The method for preparing cement blocks for water conservancy projects according to claim 8, characterized in that: Before the first step of operation, an oiling ring (41) with oil is first fixed to the peripheral side of the pressing plate (28), so that the pressing plate (28) is first lowered and then raised, which can provide an oiling effect for the inner wall of the mold frame (2).

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