Concrete prefabricated stair pouring equipment

Abstract

The invention relates to concrete prefabricated stair pouring equipment which comprises a base, a damping mechanism, a vibration mechanism and a fixing mechanism. The vibration mechanism comprises a supporting plate, a driving mechanism and a plurality of vibration units, the vibration units are located between the base and the supporting plate, each vibration unit comprises a support, a rotating shaft, a cam, a supporting column and a roller, and the damping mechanism is arranged between the base and the supporting plate; the fixing mechanism is arranged on the supporting plate and comprises a low-side fixing assembly, a middle fixing assembly and a high-side fixing assembly. According to the vibration mechanism, vibration of the prefabricated stair concrete mold can be achieved, concrete is vibrated to be compact, and the pouring effect is improved; the damping mechanism enables vibration to be stable, and the prefabricated stair concrete mold is prevented from being damaged due to violent vibration; according to the fixing mechanism, the low side fixing assembly, the middle fixing assembly and the high side fixing assembly abut against the lower side, the middle and the higher side of the prefabricated stair concrete mold correspondingly, and the prefabricated stair concrete mold can be effectively fixed.

Description

Technical Field

[0001] The invention relates to a concrete prefabricated staircase casting device. Background Art

[0002] Prefabricated stairs are widely used in construction due to their advantages such as easy installation and fast construction speed. Prefabricated stairs are generally made by pouring concrete in a prefabricated staircase mold. The concrete poured into the mold flows downward only under the action of gravity, which will cause many holes in the concrete and make it loose. Therefore, in order to improve the pouring effect, it is usually necessary to vibrate the mold with concrete poured in it to make the concrete inside more dense. However, due to the special shape of the stairs, the existing vibration mechanism cannot effectively fix the prefabricated staircase concrete mold. Summary of the invention

[0003] The technical problem to be solved by the present invention is: In order to overcome the above technical problems, the present invention provides a precast concrete staircase casting device.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a concrete precast stair casting equipment, including a base, a shock absorbing mechanism, a vibration mechanism and a fixing mechanism; the vibration mechanism includes a support plate, a driving mechanism and a plurality of vibration units, the vibration unit is located between the base and the support plate, the vibration unit includes a support, a rotating shaft, a cam, a pillar and a roller, the support is fixed to the base, the rotating shaft is arranged on the support, the cam is rotatably connected to the support through the rotating shaft, the cam is transmission-connected to the driving mechanism, one end of the pillar is fixed to the lower surface of the support plate, the other end of the pillar is connected to the roller, the roller abuts against the cam, and the initial position of the cam of each vibration unit is the same ; The shock absorbing mechanism is arranged between the base and the support plate; the fixing mechanism is arranged on the support plate, the fixing mechanism comprises a low side fixing assembly, a middle fixing assembly and a high side fixing assembly, the low side fixing assembly comprises a low side fixing column, a low side pad and a low side pressure block, the low side fixing column is fixed to the upper surface of the support plate, the low side pad is fixed to the side of the low side fixing column, and the low side pad faces the middle fixing assembly, one side of the low side pressure block has a protrusion, the side surface of the low side fixing column has a vertical groove, the vertical groove and the low side pad are located on the same side of the low side fixing column, the protrusion is slidably connected to the vertical groove, the low side pressure block is connected to the low side fixing column by a first bolt and a first gasket The fixed column is fixed, and the first gasket is penetrated on the first bolt; the side of the support plate is provided with a sliding groove, and the sliding groove is a T-shaped groove. The middle fixing assembly includes a middle fixing column, an adjusting rod, a moving rod and a middle pressure block. The lower part of the middle fixing column is provided with a slider, and the slider is a T-shaped block. The slider is arranged in the sliding groove and is slidably connected to the sliding groove. The slider is hinged to the middle fixing column, and the adjusting rod is penetrated in the middle fixing column. Both ends of the adjusting rod extend out of the middle fixing column, and the upper end of the adjusting rod is threadedly connected to the moving rod. The middle pressure block is fixed on the side of the moving rod away from the adjusting rod, and the side of the middle pressure block facing the support plate has a moving wheel, and the adjusting rod is connected through the shaft The bearing is connected with the middle fixing column; the high side fixing assembly comprises a slide rail, a high side fixing seat, a high side pad and a high side top block, the slide rail is fixed on the upper surface of the support plate, the bottom of the high side fixing seat is slidably connected with the slide rail, the high side pad is arranged on the side of the high side fixing seat facing the middle fixing assembly, the high side fixing seat is fixed to the slide rail through a locking assembly, the slide rail is a T-shaped slide rail, the locking assembly comprises a locking sleeve and a second bolt, the locking sleeve is C-shaped, the C-shaped opening of the locking sleeve is downwardly sleeved on the upper part of the T-shaped slide rail, the second bolt is threadedly connected with the locking sleeve, the head of the second bolt is located outside the locking sleeve, and the end of the second bolt away from the head abuts against the upper surface of the T-shaped slide rail;The high side top block is connected to the high side fixing seat through a height adjustment assembly, the height adjustment assembly includes a screw and two sets of hinge assemblies, the screw has a left half and a right half, the left half of the screw and the right half of the screw have opposite thread rotation directions and equal pitches, the hinge assembly includes a nut, a first connecting rod and a second connecting rod, the nuts of the two sets of hinge assemblies are respectively threadedly connected to the left half and the right half of the screw, in the same set of hinge assemblies, one end of the first connecting rod is hinged to the nut, the other end of the first connecting rod is hinged to the bottom of the high side top block, one end of the second connecting rod is hinged to the nut, and the other end of the second connecting rod is hinged to the top of the high side fixing seat. ;

[0005] The shock absorbing mechanism comprises a shock absorbing spring and a shock absorber. Two ends of the shock absorbing spring are respectively connected to the base and the support plate. Two ends of the shock absorber are respectively connected to the base and the support plate.

[0006] The shock absorbing mechanism comprises two springs and two shock absorbers, wherein the two springs are respectively arranged on both sides of the base, the two shock absorbers are respectively arranged on both sides of the base, and each vibration unit is located in the space between the two shock absorbers.

[0007] The driving mechanism comprises a motor and a belt, and the motor is connected to the rotating shaft of each vibration unit through the belt.

[0008] The protrusion of the low side pressure block is a T-shaped block, the vertical groove is a T-shaped groove, the minimum width of the vertical groove is less than the width of the first gasket and less than the maximum width of the vertical groove, the length of the first gasket is greater than the maximum width of the vertical groove, the first gasket is located in the vertical groove, and the first bolt penetrates into the vertical groove.

[0009] One side of the low side pressure block is provided with a mounting plate, the first bolt passes through the mounting plate and enters the vertical groove, and the mounting plate and the protrusion are located on the same side of the low side pressure block.

[0010] A buffer block is provided on one side of the low-side pressure block facing the support plate and on the upper surface of the high-side top block.

[0011] The low side pad, the buffer block and the high side pad are all rubber blocks.

[0012] A rotating handle is provided at one end of the adjusting rod away from the moving rod.

[0013] The beneficial effects of the present invention are as follows: in a concrete precast stair casting device of the present invention, a vibration mechanism realizes the vibration of a support plate and a fixing mechanism above the support plate, and the precast stair concrete mold is fixed to the support plate by the fixing mechanism, so that the precast stair concrete mold can be vibrated, thereby vibrating and compacting the concrete in the precast stair concrete mold, thereby improving the casting effect; a shock absorbing mechanism is arranged between the base and the support plate, so that when the vibration mechanism vibrates, the support plate and the fixing mechanism above the support plate and the precast stair concrete mold are provided with vibration buffering, so that the vibration is stable, and the precast stair concrete mold is prevented from being damaged by violent vibration; the fixing mechanism can effectively fix the precast stair concrete mold by respectively abutting against the lower side, middle and higher side of the precast stair concrete mold through the low side fixing assembly, the middle fixing assembly and the high side fixing assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 The utility model is a structural schematic diagram of a concrete precast staircase casting device of the present invention.

[0016] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0017] Figure 3 The invention is a schematic structural diagram of the cooperation between the vertical groove of the low-side fixed column and the protrusion of the low-side pressure block of a concrete precast staircase casting device of the present invention.

[0018] Figure 4 The invention discloses a structural schematic diagram of a low-side fixing column and a low-side pressing block of a concrete precast staircase casting device.

[0019] Figure 5 The present invention is a schematic structural diagram of the cooperation between a high side fixing seat and a slide rail of a concrete precast staircase casting device.

[0020] Figure 6 The invention is a schematic structural diagram of the locking assembly and the slide rail of a concrete precast staircase casting device.

[0021] Figure 7 The present invention is a schematic side structural diagram of a middle fixing assembly of a precast concrete staircase casting device.

[0022] In the figure, 1, base, 2, support plate, 2-1, sliding groove, 3, support, 4, rotating shaft, 5, cam, 6, pillar, 7, roller, 8, low side fixing column, 8-1, vertical groove, 9, low side pad, 10, low side pressure block, 10-1, mounting plate, 10-2, bump, 11, first bolt, 12, first gasket, 13, middle fixing column, 14, adjusting rod, 15, moving rod, 16, middle pressure block, 17, slider, 18, moving wheel, 19, slide rail, 20, high side fixing seat, 21, high side pad, 22, high side top block, 23, locking sleeve, 24, second bolt, 25, screw, 26, nut, 27, first connecting rod, 28, second connecting rod, 29, shock-absorbing spring, 30, shock absorber, 31, motor, 32, belt, 33, turning handle, 100, prefabricated stair concrete mold. DETAILED DESCRIPTION

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0024] like Figure 1 As shown, a concrete precast staircase casting device of the present invention comprises a base 1, a shock absorbing mechanism, a vibrating mechanism and a fixing mechanism.

[0025] The vibration mechanism includes a support plate 2, a driving mechanism and multiple vibration units. The vibration unit is located between the base 1 and the support plate 2. The vibration unit includes a support 3, a rotating shaft 4, a cam 5, a pillar 6 and a roller 7. The support 3 is fixed to the base 1, the rotating shaft 4 is set on the support 3, the cam 5 is rotatably connected to the support 3 through the rotating shaft 4, the cam 5 is transmission-connected to the driving mechanism, one end of the pillar 6 is fixed to the lower surface of the support plate 2, and the other end of the pillar 6 is connected to the roller 7, the roller 7 abuts against the cam 5, and the initial position of the cam 5 of each vibration unit is the same.

[0026] The shock absorbing mechanism is arranged between the base 1 and the support plate 2 .

[0027] The fixing mechanism is arranged on the support plate 2, and the fixing mechanism includes a low-side fixing assembly, a middle fixing assembly and a high-side fixing assembly. The low-side fixing assembly includes a low-side fixing column 8, a low-side pad 9 and a low-side pressure block 10. The low-side fixing column 8 is fixed on the upper surface of the support plate 2, the low-side pad 9 is fixed on the side of the low-side fixing column 8, and the low-side pad 9 faces the middle fixing assembly. One side of the low-side pressure block 10 has a protrusion 10-2, and the side of the low-side fixing column 8 has a vertical groove 8-1. The vertical groove 8-1 and the low-side pad 9 are located on the same side of the low-side fixing column 8, the protrusion 10-2 is slidably connected with the vertical groove 8-1, and the low-side pressure block 10 is fixed to the low-side fixing column 8 by a first bolt 11 and a first gasket 12, and the first gasket 12 is passed through the first bolt 11.

[0028] The side of the support plate 2 has a sliding groove 2-1, which is a T-shaped groove. The middle fixing assembly includes a middle fixing column 13, an adjustment rod 14, a moving rod 15 and a middle pressing block 16. The lower part of the middle fixing column 13 is provided with a slider 17, which is a T-shaped block. The slider 17 is arranged in the sliding groove 2-1 and is slidably connected to the sliding groove 2-1. Figure 7 As shown, the slider 17 is hinged to the middle fixed column 13, the adjusting rod 14 is inserted into the middle fixed column 13, both ends of the adjusting rod 14 extend out of the middle fixed column 13, and the upper end of the adjusting rod 14 is threadedly connected to the moving rod 15, the middle pressure block 16 is fixed on the side of the moving rod 15 away from the adjusting rod 14, and the side of the middle pressure block 16 facing the support plate 2 has a moving wheel 18, and the adjusting rod 14 is connected to the middle fixed column 13 through a bearing.

[0029] The high side fixing assembly includes a slide rail 19, a high side fixing seat 20, a high side cushion block 21 and a high side top block 22. The slide rail 19 is fixed on the upper surface of the support plate 2. Figure 5 As shown, the bottom of the high side fixing seat 20 is slidably connected with the slide rail 19, and the high side pad 21 is arranged on the side of the high side fixing seat 20 facing the middle fixing assembly. The high side fixing seat 20 is fixed to the slide rail 19 through a locking assembly, and the slide rail 19 is a T-shaped slide rail. Figure 6 As shown, the locking assembly includes a locking sleeve 23 and a second bolt 24. The locking sleeve 23 is C-shaped, and the C-shaped opening of the locking sleeve 23 is sleeved downward on the upper part of the T-shaped slide rail 19. The second bolt 24 is threadedly connected to the locking sleeve 23. The head of the second bolt 24 is located outside the locking sleeve 23, and the end of the second bolt 24 away from the head abuts against the upper surface of the T-shaped slide rail 19. The high side top block 22 is connected to the high side fixing seat 20 through the height adjustment assembly, as shown in FIG. Figure 2 As shown, the height adjustment assembly includes a screw rod 25 and two sets of hinge assemblies, the screw rod 25 has a left half and a right half, the left half of the screw rod 25 and the right half of the screw rod 25 have opposite thread rotation directions and equal pitches, the hinge assembly includes a nut 26, a first connecting rod 27 and a second connecting rod 28, the nuts 26 of the two sets of hinge assemblies are respectively threadedly connected to the left half and the right half of the screw rod 25, in the same set of hinge assemblies, one end of the first connecting rod 27 is hinged to the nut 26, and the other end of the first connecting rod 27 is hinged to the bottom of the high side top block 22, one end of the second connecting rod 28 is hinged to the nut 26, and the other end of the second connecting rod 28 is hinged to the top of the high side fixing seat 20.

[0030] The shock absorbing mechanism includes a shock absorbing spring 29 and a shock absorber 30 . The two ends of the shock absorbing spring 29 are respectively connected to the base 1 and the support plate 2 . The two ends of the shock absorber 30 are respectively connected to the base 1 and the support plate 2 .

[0031] The shock absorbing mechanism includes two springs and two shock absorbers 30, and the two springs are respectively arranged on both sides of the base 1, and the two shock absorbers 30 are respectively arranged on both sides of the base 1, and each vibration unit is located in the space between the two shock absorbers 30. In this way, each vibration unit is located between the two groups of springs and shock absorbers 30, and is evenly distributed, so that the vibration is stable, and the prefabricated staircase concrete mold 100 is prevented from being damaged by violent vibration.

[0032] The driving mechanism includes a motor 31 and a belt 32, and the motor 31 is connected to the rotating shaft 4 of each vibration unit through the belt 32. The motor 31 drives the driving shaft to rotate, and the driving shaft drives the belt 32 to rotate, and the belt 32 drives the rotating shaft 4 of each vibration unit to rotate, and the rotation of the rotating shaft 4 drives the cam 5 to rotate, and the rotation of the cam 5 causes the position of the roller 7 abutting against it to change up and down, so that the pillar 6 moves back and forth up and down, and the initial position of the cam 5 of each vibration unit is the same, and the rotating shaft 4 of each vibration unit is connected through the same belt 32. Therefore, the up and down movement of each pillar 6 with the cam 5 and the roller 7 is synchronous and the same, and each pillar 6 lifts each part of the support plate 2 to make up and down reciprocating movements of the same amplitude, so that the prefabricated staircase concrete mold 100 fixed on the support plate 2 reciprocates up and down to achieve a vibration effect.

[0033] like Figure 3-4 As shown, the protrusion 10-2 of the low side pressure block 10 is a T-shaped block, the vertical groove 8-1 is a T-shaped groove, the minimum width of the vertical groove 8-1 is less than the width of the first gasket 12 and less than the maximum width of the vertical groove 8-1, the length of the first gasket 12 is greater than the maximum width of the vertical groove 8-1, the first gasket 12 is located in the vertical groove 8-1, and the first bolt 11 penetrates into the vertical groove 8-1. In order to facilitate the installation of the low side pressure block 10, one side of the low side pressure block 10 has a mounting plate 10-1, the first bolt 11 penetrates through the mounting plate 10-1 and penetrates into the vertical groove 8-1, and the mounting plate 10-1 and the protrusion 10-2 are located on the same side of the low side pressure block 10.

[0034] Therefore, the first gasket 12 can be inserted into the vertical groove 8-1, but when the first bolt 11 rotates, the first gasket 12 cannot rotate in the vertical groove 8-1 because its length is greater than the maximum width of the vertical groove 8-1. Therefore, when the first bolt 11 rotates, the relative position of the first gasket 12 and the first bolt 11 will change, so that the low side fixing column 8 and the mounting plate 10-1 are clamped by the first gasket 12 and the first bolt 11 to achieve fixation of the low side fixing column 8 and the low side pressure block 10.

[0035] In order to prevent the low side pressure block 10 and the high side top block 22 from rigidly contacting the precast stair concrete mold 100 and damaging the precast stair concrete mold 100, a buffer block is provided on the side of the low side pressure block 10 facing the support plate 2 and on the upper surface of the high side top block 22.

[0036] Preferably, the low side pad 9, the buffer block and the high side pad 21 are all rubber blocks.

[0037] In order to facilitate the rotation of the adjusting rod 14 , a rotating handle 33 is provided at one end of the adjusting rod 14 away from the moving rod 15 , so that the adjusting rod 14 can be rotated manually.

[0038] A concrete precast staircase casting device of the present invention has a vibration mechanism to realize the vibration of the support plate 2 and the fixing mechanism above it. The precast staircase concrete mold 100 is fixed on the support plate 2 through the fixing mechanism, so that the precast staircase concrete mold 100 can be vibrated, so that the concrete in the precast staircase concrete mold 100 is vibrated and compacted, thereby improving the casting effect. The shock absorbing mechanism is arranged between the base 1 and the support plate 2, so that when the vibration mechanism vibrates, the support plate 2 and the fixing mechanism above it and the precast staircase concrete mold 100 are provided with vibration buffering, so that the vibration is stable, and the precast staircase concrete mold 100 is prevented from being damaged by violent vibration. The fixing mechanism is against the lower side, middle part and higher side of the precast staircase concrete mold 100 through the low side fixing assembly, the middle part fixing assembly and the high side fixing assembly, respectively, so as to realize the effective fixation of the precast staircase concrete mold 100.

[0039] The fixing method of the low side fixing assembly is as follows: the front end of the lower side of the precast stair concrete mold 100 is pressed against the low side pad 9, and the height position of the low side pressure block 10 on the low side fixing column 8 is adjusted so that the low side pressure block 10 is pressed against the top of the lower side step of the precast stair concrete mold 100. The low side fixing column 8 and the mounting plate 10-1 can be loosened by turning the first bolt 11, and the protrusion 10-2 of the low side pressure block 10 can slide up and down in the vertical groove 8-1, so as to adjust the height of the low side pressure block 10 on the low side fixing column 8. When the low side pressure block 10 is pressed against the top of the lower side step of the precast stair concrete mold 100, the first bolt 11 is turned so that the first gasket 12 and the first bolt 11 clamp the low side fixing column 8 and the mounting plate 10-1, so that the low side fixing column 8 and the low side pressure block 10 are fixed.

[0040] The middle fixing assembly can be one group or two symmetrical groups, which are clamped against the left and right sides of the precast staircase concrete mold 100 like two arms to fix the middle of the precast staircase concrete mold 100. The fixing method of the middle fixing assembly is as follows: the middle fixing column 13 can adjust the left and right positions of the middle fixing assembly by moving the slider 17 in the sliding groove 2-1, so that the middle fixing assembly can be adjusted according to the precast staircases of different sizes. The slider 17 is hinged with the middle fixing column 13, so that the middle fixing column 13 can rotate around the slider 17. In the initial position, the middle fixing column 13 can be rotated to be flat, like an open arm state. When clamping is required, the middle fixing column 13 is rotated around the slider 17 to make the middle fixing column 13 in a vertical state, and the adjustment rod 14 and the moving rod 15 are also in a vertical state. The middle pressing block 16 protrudes above a step of the moving rod 15 located in the middle of the precast staircase concrete mold 100. The adjusting rod 14 can be manually rotated by rotating the rotating handle 33, and the adjusting rod 14 rotates in the middle fixed column 13. If the middle pressure block 16 is pressed and does not rotate, the moving rod 15 threadedly connected to the adjusting rod 14 will not rotate either, and will move up and down along the adjusting rod 14, thereby adjusting the height position of the middle pressure block 16, so that the middle pressure block 16 abuts against the step at the middle position of the precast stair concrete mold 100 below it, and fixes the middle position of the precast stair concrete mold 100. The moving wheel 18 can abut against the step at the middle position of the precast stair concrete mold 100, and rub against the step roller during the rotation, opening or clamping process of the middle fixed column 13, thereby reducing friction and avoiding collision and damage to the precast stair concrete mold 100.

[0041] The fixing method of the high side fixing assembly is as follows: the left and right positions of the high side fixing seat 20 can be changed on the slide rail 19. When the high side pad 21 abuts against the side of the bottom of the step on the higher side of the precast stair concrete mold 100, the high side fixing seat 20 and the slide rail 19 are locked by the locking assembly. Then, by adjusting the height adjustment assembly, the high side top block 22 abuts against the bottom of the step on the higher side of the precast stair concrete mold 100, thereby achieving the fixing of the higher side of the precast stair concrete mold 100. Among them, the second bolt 24 in the locking assembly is threadedly connected to the locking sleeve 23, and the locking sleeve 23 and the slide rail 19 can be locked or released by rotating the second bolt 24. In the height adjustment assembly, the nut 26 of the hinge assembly is restricted by the first connecting rod 27 and the second connecting rod 28 and cannot rotate with the screw rod 25. When the screw rod 25 is manually rotated, the nuts 26 of the two sets of hinge assemblies will move closer to each other or away from each other, thereby driving the first connecting rod 27 and the second connecting rod 28 of the two sets of hinge assemblies to open or close, thereby realizing the change of the height position of the high side top block 22.

[0042] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A precast concrete staircase casting device, characterized in that: It comprises a base (1), a shock absorbing mechanism, a vibration mechanism and a fixing mechanism; The vibration mechanism comprises a support plate (2), a driving mechanism and a plurality of vibration units, wherein the vibration unit is located between the base (1) and the support plate (2), and comprises a support (3), a rotating shaft (4), a cam (5), a pillar (6) and a roller (7), wherein the support (3) is fixed to the base (1), the rotating shaft (4) is arranged on the support (3), the cam (5) is rotatably connected to the support (3) via the rotating shaft (4), the cam (5) is transmission-connected to the driving mechanism, one end of the pillar (6) is fixed to the lower surface of the support plate (2), the other end of the pillar (6) is connected to the roller (7), the roller (7) abuts against the cam (5), and the initial position of the cam (5) of each vibration unit is the same; The shock absorbing mechanism is arranged between the base (1) and the support plate (2); The fixing mechanism is arranged on the support plate (2), and the fixing mechanism comprises a low-side fixing assembly, a middle fixing assembly and a high-side fixing assembly, the low-side fixing assembly comprises a low-side fixing column (8), a low-side cushion block (9) and a low-side pressure block (10), the low-side fixing column (8) is fixed to the upper surface of the support plate (2), the low-side cushion block (9) is fixed to the side of the low-side fixing column (8), and the low-side cushion block (9) faces the middle fixing assembly, and the low-side pressure block (10) is fixed to the side of the low-side fixing column (8), and the low-side cushion block (9) faces the middle fixing assembly, and the low-side pressure block (10) ) has a protrusion (10-2) on one side, the side of the low-side fixing column (8) has a vertical groove (8-1), the vertical groove (8-1) and the low-side pad (9) are located on the same side of the low-side fixing column (8), the protrusion (10-2) is slidably connected to the vertical groove (8-1), the low-side pressure block (10) is fixed to the low-side fixing column (8) by a first bolt (11) and a first gasket (12), and the first gasket (12) is inserted on the first bolt (11); The side of the support plate (2) has a sliding groove (2-1), and the sliding groove (2-1) is a T-shaped groove. The middle fixing assembly includes a middle fixing column (13), an adjustment rod (14), a moving rod (15) and a middle pressing block (16). A sliding block (17) is provided at the lower part of the middle fixing column (13), and the sliding block (17) is a T-shaped block. The sliding block (17) is arranged in the sliding groove (2-1) and is slidably connected to the sliding groove (2-1). The sliding block (17) is connected to the middle fixing column (13) is hinged, the adjusting rod (14) is inserted into the middle fixed column (13), both ends of the adjusting rod (14) extend out of the middle fixed column (13), and the upper end of the adjusting rod (14) is threadedly connected to the moving rod (15), the middle pressure block (16) is fixed to the side of the moving rod (15) away from the adjusting rod (14), and the side of the middle pressure block (16) facing the support plate (2) has a moving wheel (18), and the adjusting rod (14) is connected to the middle fixed column (13) through a bearing; The high side fixing assembly comprises a slide rail (19), a high side fixing seat (20), a high side pad (21) and a high side top block (22); the slide rail (19) is fixed on the upper surface of the support plate (2); the bottom of the high side fixing seat (20) is slidably connected to the slide rail (19); the high side pad (21) is arranged on the side of the high side fixing seat (20) facing the middle fixing assembly; the high side fixing seat (20) is fixed to the slide rail (19) through a locking assembly; the slide rail (19) is a T-shaped slide rail; the locking assembly comprises a locking sleeve (23) and a second bolt (24); the locking sleeve (23) is C-shaped; the C-shaped opening of the locking sleeve (23) is downwardly sleeved on the upper part of the T-shaped slide rail (19); the second bolt (24) is threadedly connected to the locking sleeve (23); the head of the second bolt (24) is located outside the locking sleeve (23); the end of the second bolt (24) away from the head is abutted against the locking sleeve (23). The high side top block (22) is connected to the high side fixing seat (20) through a height adjustment assembly, the height adjustment assembly includes a screw rod (25) and two sets of hinge assemblies, the screw rod (25) has a left half section and a right half section, the left half section of the screw rod (25) and the right half section of the screw rod (25) have opposite thread rotation directions and equal thread pitches, the hinge assembly includes a nut (26), a first connecting rod (27) and a second connecting rod (28). Rod (28), nuts (26) of the two sets of hinged assemblies are respectively threadedly connected to the left half and the right half of the screw rod (25), in the same set of hinged assemblies, one end of the first connecting rod (27) is hinged to the nut (26), the other end of the first connecting rod (27) is hinged to the bottom of the high side top block (22), one end of the second connecting rod (28) is hinged to the nut (26), the other end of the second connecting rod (28) is hinged to the top of the high side fixing seat (20).

2. The precast concrete staircase casting equipment according to claim 1, characterized in that: The shock absorbing mechanism comprises a shock absorbing spring (29) and a shock absorber (30), wherein two ends of the shock absorbing spring (29) are respectively connected to the base (1) and the support plate (2), and two ends of the shock absorber (30) are respectively connected to the base (1) and the support plate (2).

3. The precast concrete staircase casting equipment according to claim 1, characterized in that: The shock absorbing mechanism comprises two springs and two shock absorbers (30), wherein the two springs are respectively arranged on both sides of the base (1), the two shock absorbers (30) are respectively arranged on both sides of the base (1), and each vibration unit is located in the space between the two shock absorbers (30).

4. The precast concrete staircase casting equipment according to claim 1, characterized in that: The driving mechanism comprises a motor (31) and a belt (32), and the motor (31) is transmission-connected to the rotating shaft (4) of each vibration unit via the belt (32).

5. The precast concrete staircase casting equipment according to claim 1, characterized in that: The protrusion (10-2) of the low-side pressure block (10) is a T-shaped block, the vertical groove (8-1) is a T-shaped groove, the minimum width of the vertical groove (8-1) is less than the width of the first gasket (12) and less than the maximum width of the vertical groove (8-1), the length of the first gasket (12) is greater than the maximum width of the vertical groove (8-1), the first gasket (12) is located in the vertical groove (8-1), and the first bolt (11) penetrates into the vertical groove (8-1).

6. The precast concrete staircase casting equipment according to claim 1, characterized in that: One side of the low-side pressure block (10) is provided with a mounting plate (10-1), the first bolt (11) passes through the mounting plate (10-1) and enters the vertical groove (8-1), and the mounting plate (10-1) and the protrusion (10-2) are located on the same side of the low-side pressure block (10).

7. The precast concrete staircase casting equipment according to claim 1, characterized in that: A buffer block is provided on the side of the low-side pressure block (10) facing the support plate (2) and on the upper surface of the high-side top block (22).

8. The precast concrete staircase casting equipment according to claim 1, characterized in that: The low side pad (9), the buffer block and the high side pad (21) are all rubber blocks.

9. The precast concrete staircase casting equipment according to claim 1, characterized in that: A rotating handle (33) is provided at one end of the adjusting rod (14) away from the moving rod (15).

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