Prefabricated cement batten conveying device

Abstract

The utility model relates to the technical field of constructional engineering transportation, and provides a prefabricated cement batten transportation device which comprises a vehicle body, a support is fixedly connected to the bottom of the vehicle body, a rotating shaft penetrates through and is rotationally connected to the inner side of the support, wheel bodies are fixedly connected to the two ends of the rotating shaft, and a supporting frame is fixedly connected to the bottom of the vehicle body. By arranging the upslope protection mechanism, when the handrail is pushed by hand to enable the vehicle body to transport the prefabricated cement batten to move upslope, through cooperation of a sliding groove, a balancing weight, a hydraulic bin, a pressing plate and other assemblies, a wheel body rotates clockwise to drive a rotating shaft to rotate clockwise, and a speed reduction block makes contact with an arc-shaped block; and when the user accidentally gets out of force, the rotating shaft rotates anticlockwise to drive the speed reduction block and the arc-shaped block to extrude to generate large resistance, and the situation that the vehicle body rapidly slides down and hurt the user is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering transportation, and in particular to a prefabricated cement slab transportation device. Background Art

[0002] Precast panels are floor slabs used in construction, that is, modules or panels required for engineering projects. They are precast concrete parts produced and processed in precast plants and directly transported to the construction site for installation, so they are called precast panels. When making precast panels, first use wooden boards to nail a hollow model. After steel bars are distributed in the hollow part of the model, the hollow part is filled with cement. After it dries, the wooden boards are knocked off, and what remains is the precast panel.

[0003] The utility model with publication number CN210454850U discloses a prefabricated cement slat transportation device, including a frame portion, a moving portion, a connecting portion and a lifting portion. The frame portion is an adjustable structure, the frame portion is parallel to the cement slat and perpendicular to the center position of the moving portion, and the length of the frame portion is not less than the length of the cement slat; the moving portion is located below the frame portion, and the moving portion is connected to the frame portion through the connecting portion. In the above application document, the transportation direction of the moving portion can be controlled by a hand push rod, and then the direction of the cement slat and the entire transportation device can be controlled. It is easy to operate, light and flexible, and can be easily transported without the assistance of other equipment. It is more dangerous when used uphill, and the user may detach, causing the entire device to slide rapidly and injure the user. Utility Model Content

[0004] The utility model provides a prefabricated cement slab transportation device, which solves the problems raised in the above documents.

[0005] The technical solution of the utility model is as follows: a prefabricated cement slab transport device, including a vehicle body, the bottom of the vehicle body is fixedly connected to a bracket, the inner side of the bracket passes through and is rotatably connected to a rotating shaft, both ends of the rotating shaft are fixedly connected to a wheel body, the bottom of the vehicle body is fixedly connected to a support frame, the side of the vehicle body is fixedly connected to a handrail, and the bottom of the vehicle body is provided with an uphill protection mechanism; the uphill protection mechanism includes a hydraulic tank, a slide, a speed reduction block and a shell, the hydraulic tank passes through and is fixedly connected to the side of the vehicle body, the internal piston of one end of the hydraulic tank is slidably connected to a piston rod A, and the piston rod A is fixedly connected to a pressure plate at one end away from the hydraulic warehouse, a compression spring is sleeved on the surface of the piston rod A, and the internal piston at the other end of the hydraulic warehouse is slidably connected to the piston rod B, and the piston rod B is slidably connected to the end of the hydraulic warehouse away from the hydraulic warehouse, a telescopic spring is provided inside the slide, and an arc block is slidably connected to the inside of the slide through the telescopic spring, the slide groove is opened at the inner bottom of the vehicle body, and a counterweight block is slidably connected to the inside of the slide groove, the deceleration block is fixedly connected to the surface of the rotating shaft, the bottom of the shell is fixedly connected to the inner bottom of the vehicle body, and a lubrication mechanism is provided on the inner side of the shell.

[0006] The bottom of the support frame is higher than the bottom of the wheel body in the initial state, and the number of the support frames is set to two groups. After the vehicle body is rotated to the rear end, the vehicle body can be supported by the two groups of support frames.

[0007] In the initial state, both ends of the compression spring respectively contact the hydraulic chamber and the pressure plate. When the pressure plate is squeezed and drives the piston rod A to move leftward, the compression spring will be compressed.

[0008] In the initial state, one third of the arc block is located outside the slide cylinder, and the arc surface of the arc block faces downward. When the arc surface of the arc block is squeezed, it will move toward the inside of the slide cylinder.

[0009] The end of the arc block away from the telescopic spring is close to the rotating shaft in the initial state, and the depth inside the slide is greater than the length of the arc block. After the slide moves to the right, the rotation of the rotating shaft will drive the deceleration block to contact the arc block, and the arc block can be completely retracted into the interior of the slide.

[0010] The entire slide is located inside the shell, and the friction between the counterweight and the slide is smaller than the gravity of the speed reducer itself. When the vehicle body tilts, the gravity will cause the counterweight to slide along the slide to the tilted side.

[0011] The end of the speed reduction block away from the rotating shaft is arc-shaped, and the material of the speed reduction block is rubber. When the arc-shaped end of the speed reduction block made of rubber is squeezed against the straight surface of the arc-shaped block, greater resistance will be generated.

[0012] The lubricating mechanism includes a lubricating oil tank, the side of the lubricating oil tank is fixedly connected to the inner wall of the shell, and the two sides of the lubricating oil tank are respectively penetrated and fixedly connected with an oil filling pipe and an oil outlet pipe, the end of the oil filling pipe away from the lubricating oil tank is provided with a sealing plug, and the side of the lubricating oil tank close to the oil outlet pipe is fixedly connected to a pressure chamber, a return spring is provided inside the pressure chamber, and the interior of the pressure chamber is slidably connected to a piston rod C through a return spring piston, the top of the pressure chamber is penetrated and fixedly connected with an air intake pipe, the side of the pressure chamber is penetrated and fixedly connected with a pressurizing pipe, the end of the pressurizing pipe away from the pressure chamber is penetrated and fixedly connected to the lubricating oil tank, and a one-way valve is provided inside both the air intake pipe and the pressurizing pipe.

[0013] The end of the piston rod C away from the return spring is located on the right side of the speed reduction block, and the speed reduction block will squeeze the piston rod C when it moves to the right.

[0014] The one-way valve in the air intake pipe is for one-way conduction toward the interior of the pressure chamber, and the one-way valve in the pressurizing pipe is for one-way conduction toward the interior of the lubricating oil tank. When negative pressure is formed in the pressure chamber, external air will be sucked in through the air intake pipe, and when the air in the pressure chamber is squeezed, the air will be discharged into the lubricating oil tank through the pressurizing pipe.

[0015] The working principle and beneficial effects of the utility model are as follows:

[0016] 1. The utility model is provided with an uphill protection mechanism, so that when the handrail is pushed to make the vehicle body transport prefabricated cement slabs to move uphill, the cooperation of the slide groove, counterweight block, hydraulic bin, pressure plate and other components will make the wheel body rotate clockwise to drive the rotating shaft to rotate clockwise. The speed reduction block will contact the arc block, but will not generate too much resistance to affect the user's pushing. When the user loses strength due to accidental loss of strength, the counterclockwise rotation of the rotating shaft will drive the speed reduction block and the arc block to be squeezed to generate greater resistance, thereby preventing the vehicle body from sliding down quickly and injuring the user.

[0017] 2. The utility model is provided with a lubrication mechanism, so that when the vehicle body transports prefabricated cement slats and moves downhill, the lubricating oil tank will be pressurized through the cooperation of components such as the slide, counterweight, pressure chamber, piston rod C, and pressure pipe, so that the lubricating oil in the lubricating oil tank can flow out into the slide through the oil outlet pipe to lubricate the slide, thereby preventing the counterweight from being unable to slide due to gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is a three-dimensional front view of the overall structure of the utility model;

[0020] Figure 2This is a three-dimensional side view of the overall structure of the utility model;

[0021] Figure 3 This is a three-dimensional cross-sectional view of the overall structure of the utility model;

[0022] Figure 4 This is a three-dimensional cross-sectional view of the uphill protection mechanism structure of the utility model;

[0023] Figure 5 This is a three-dimensional cross-sectional view of the lubrication mechanism structure of the utility model.

[0024] In the figure: 1. Vehicle body; 2. Bracket; 3. Rotating shaft; 4. Wheel body; 5. Support frame; 6. Handrail; 7. Uphill protection mechanism; 71. Hydraulic chamber; 72. Piston rod A; 73. Pressure plate; 74. Compression spring; 75. Piston rod B; 76. Telescopic spring; 77. Arc block; 78. Slide; 79. Counterweight; 710. Speed ​​reduction block; 711. Housing; 712. Slide; 8. Lubrication mechanism; 81. Lubricating oil tank; 82. Oil filling pipe; 83. Sealing plug; 84. Oil outlet pipe; 85. Pressure chamber; 86. Return spring; 87. Piston rod C; 88. Intake pipe; 89. Pressurizing pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 efforts are within the scope of protection of the present invention.

[0026] Example 1

[0027] like Figures 1 to 5As shown, this embodiment proposes a prefabricated cement slab transport device, including a vehicle body 1, a bracket 2 is fixedly connected to the bottom of the vehicle body 1, a rotating shaft 3 is passed through the inner side of the bracket 2 and is rotatably connected, and both ends of the rotating shaft 3 are fixedly connected to the wheel body 4, and the bottom of the vehicle body 1 is fixedly connected to the support frame 5. The bottom of the support frame 5 is higher than the bottom of the wheel body 4 in the initial state, and the number of the support frames 5 is set to two groups. After the vehicle body 1 is rotated to the rear end, the vehicle body 1 can be supported by the two groups of support frames 5. A handrail 6 is fixedly connected to the side of the vehicle body 1, and an uphill protection mechanism 7 is provided at the bottom of the vehicle body 1; the uphill protection mechanism 7 includes a hydraulic tank 71, a slide 78, a deceleration block 710 and a shell 71 1. The hydraulic chamber 71 passes through and is fixedly connected to the side of the vehicle body 1. The internal piston at one end of the hydraulic chamber 71 is slidably connected to a piston rod A72. The end of the piston rod A72 away from the hydraulic chamber 71 is fixedly connected to a pressure plate 73. A compression spring 74 is sleeved on the surface of the piston rod A72. In the initial state, the two ends of the compression spring 74 respectively conflict with the hydraulic chamber 71 and the pressure plate 73. When the pressure plate 73 is squeezed and drives the piston rod A72 to move to the left, the compression spring 74 will be compressed. The internal piston at the other end of the hydraulic chamber 71 is slidably connected to a piston rod B75. The end of the piston rod B75 away from the hydraulic chamber 71 is slidably connected to a slide cylinder 712. A telescopic spring is arranged inside the slide cylinder 712. The interior of the slide 712 is slidably connected to an arc block 77 through a telescopic spring 76. In the initial state, one-third of the arc block 77 is located outside the slide 712, and the arc surface of the arc block 77 is downward. When the arc surface of the arc block 77 is squeezed, it will move toward the interior of the slide 712. The end of the arc block 77 away from the telescopic spring 76 is close to the shaft 3 in the initial state. The depth of the interior of the slide 712 is greater than the length of the arc block 77. After the slide 712 moves to the right, the rotation of the shaft 3 will drive the deceleration block 710 to contact the arc block 77, and the arc block 77 can be completely retracted into the interior of the slide 712. The slide groove 78 is opened at the inner bottom of the vehicle body 1, and the inner sliding of the slide groove 78 It is connected to a counterweight block 79, and a speed reduction block 710 is fixedly connected to the surface of the rotating shaft 3. The end of the speed reduction block 710 away from the rotating shaft 3 is arc-shaped, and the material of the speed reduction block 710 is rubber. When the arc-shaped end of the rubber speed reduction block 710 is squeezed against the straight surface of the arc block 77, a large resistance will be generated. The bottom of the shell 711 is fixedly connected to the inner bottom of the vehicle body 1, and the slide groove 78 is located as a whole inside the shell 711. The friction between the counterweight block 79 and the slide groove 78 is less than the gravity of the speed reduction block 710 itself. When the vehicle body 1 tilts, the gravity will cause the counterweight block 79 to slide along the slide groove 78 to the tilted side. A lubrication mechanism 8 is provided on the inner side of the shell 711.

[0028] In this embodiment, when the prefabricated cement slats need to be transported, the prefabricated cement slats are placed in the vehicle body 1, and the user moves the vehicle body 1 by pushing the handrail 6. When it needs to stop, the vehicle body 1 can be rotated to the rear end, and the vehicle body 1 is supported by the two sets of support frames 5. When the handrail 6 is pushed to make the vehicle body 1 transport the prefabricated cement slats uphill, the vehicle body 1 tilts toward one end of the handrail 6. At this time, the counterweight block 79 moves to the left along the slide groove 78. The counterweight block 79 moves to the left and squeezes the pressure plate 73, causing the pressure plate 73 and the piston rod A72 to move to the left. The compression spring 74 is compressed, and the piston rod A72 moves to the left, which drives the piston rod B75 and the slide cylinder 712 to move to the right through the hydraulic pressure in the hydraulic chamber 71. The clockwise rotation of the wheel body 4 and the rotating shaft 3 will bring The dynamic deceleration block 710 contacts the arc block 77. At this time, the deceleration block 710 will squeeze the arc surface of the arc block 77, causing the arc block 77 to retract into the slide 712, and then the telescopic spring 76 will drive it to restore. During this process, not much resistance will be generated to affect the vehicle body 1 going uphill. When the user accidentally loses power, the wheel body 4 and the rotating shaft 3 rotate counterclockwise, which will drive the deceleration block 710 to be squeezed against the straight surface of the arc block 77 to generate greater resistance, preventing the vehicle body 1 from sliding quickly and injuring the user. When the vehicle body 1 returns to the level, the compression spring 74 rebounds and drives the piston rod A72 and the pressure plate 73 to move to the right to restore. At this time, the hydraulic pressure in the hydraulic chamber 71 drives the piston rod B75 and the slide 712 to move to the left to restore. At this time, the deceleration block 710 will not contact the arc block 77 when rotating with the rotating shaft 3.

[0029] Example 2

[0030] like Figures 1 to 5As shown, based on the same concept as the above-mentioned embodiment 1, a second embodiment is also proposed. The lubricating mechanism 8 includes a lubricating oil tank 81. The side of the lubricating oil tank 81 is fixedly connected to the inner wall of the shell 711. The two sides of the lubricating oil tank 81 are respectively penetrated and fixedly connected with an oil filling pipe 82 and an oil outlet pipe 84. The end of the oil filling pipe 82 away from the lubricating oil tank 81 is provided with a sealing plug 83. The side of the lubricating oil tank 81 close to the oil outlet pipe 84 is fixedly connected to a pressure chamber 85. A return spring 86 is provided inside the pressure chamber 85. The interior of the pressure chamber 85 is connected to a piston rod C87 through a piston sliding connection of the return spring 86. The end of the piston rod C87 away from the return spring 86 is located on the right side of the speed reduction block 710. When block 710 moves to the right, it will squeeze the piston rod C87. The top of the pressure chamber 85 is penetrated by an air intake pipe 88 and is fixedly connected. The side of the pressure chamber 85 is penetrated by a pressurizing pipe 89 and is fixedly connected. The end of the pressurizing pipe 89 away from the pressure chamber 85 is penetrated by and fixedly connected to the lubricating oil tank 81. Both the air intake pipe 88 and the pressurizing pipe 89 are provided with a one-way valve. The one-way valve in the air intake pipe 88 is unidirectionally conductive toward the interior of the pressure chamber 85, and the one-way valve in the pressurizing pipe 89 is unidirectionally conductive toward the interior of the lubricating oil tank 81. When negative pressure is formed in the pressure chamber 85, external air will be sucked in through the air intake pipe 88, and when the air in the pressure chamber 85 is squeezed, the air will be discharged into the lubricating oil tank 81 through the pressurizing pipe 89.

[0031] In this embodiment, when the counterweight 79 slides to the right side of the slide groove 78 due to gravity, the counterweight 79 will squeeze the piston rod C87, causing the piston rod C87 to move to the right, and the return spring 86 will be compressed. The rightward movement of the piston rod C87 will squeeze the air in the pressure chamber 85 so that it is injected into the lubricating oil tank 81 through the pressurizing pipe 89, thereby increasing the pressure in the lubricating oil tank 81. At this time, the lubricating oil in the lubricating oil tank 81 will flow into the slide groove 78 through the oil outlet pipe 84, and when the counterweight 79 leaves the piston rod C87, the return spring 86 rebounds and drives the piston rod C87 to move to the left and restore. At this time, negative pressure is formed in the pressure chamber 85, and air is replenished into the pressure chamber 85 through the air intake pipe 88, thereby achieving lubrication of the slide groove 78 and preventing the counterweight 79 from being unable to slide due to gravity.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A prefabricated cement slab transport device, characterized in that: The vehicle comprises a vehicle body (1), wherein the bottom of the vehicle body (1) is fixedly connected to a bracket (2), the inner side of the bracket (2) is penetrated by a rotating shaft (3) and is rotatably connected thereto, both ends of the rotating shaft (3) are fixedly connected to a wheel body (4), the bottom of the vehicle body (1) is fixedly connected to a support frame (5), the side of the vehicle body (1) is fixedly connected to a handrail (6), and the bottom of the vehicle body (1) is provided with an uphill protection mechanism (7); The uphill protection mechanism (7) includes a hydraulic chamber (71), a slide groove (78), a deceleration block (710) and a housing (711). The hydraulic chamber (71) passes through and is fixedly connected to the side of the vehicle body (1). The internal piston at one end of the hydraulic chamber (71) is slidably connected to a piston rod A (72). The end of the piston rod A (72) away from the hydraulic chamber (71) is fixedly connected to a pressure plate (73). The surface of the piston rod A (72) is sleeved with a compression spring (74). The internal piston at the other end of the hydraulic chamber (71) is slidably connected to a piston rod B (75). The piston rod B (75) away from the hydraulic chamber (71) is fixedly connected to a pressure plate (73). One end of the pressure bin (71) is slidably connected to a slide (712), a telescopic spring (76) is provided inside the slide (712), an arc block (77) is slidably connected inside the slide (712) via the telescopic spring (76), the slide groove (78) is opened at the inner bottom of the vehicle body (1), a counterweight block (79) is slidably connected inside the slide groove (78), the deceleration block (710) is fixedly connected to the surface of the rotating shaft (3), the bottom of the shell (711) is fixedly connected to the inner bottom of the vehicle body (1), and a lubrication mechanism (8) is provided on the inner side of the shell (711).

2. A prefabricated cement slab transport device according to claim 1, characterized in that: The bottom of the support frame (5) is higher than the bottom of the wheel body (4) in an initial state, and the number of the support frames (5) is set to two groups.

3. A prefabricated cement slab transport device according to claim 2, characterized in that: In an initial state, both ends of the compression spring (74) respectively contact the hydraulic chamber (71) and the pressure plate (73).

4. A prefabricated cement slab transport device according to claim 3, characterized in that: In the initial state, one third of the arc-shaped block (77) is located outside the slide cylinder (712), and the arc surface of the arc-shaped block (77) is downward.

5. The prefabricated cement slab transport device according to claim 4, characterized in that: In the initial state, one end of the arc block (77) away from the telescopic spring (76) is close to the rotating shaft (3), and the depth inside the slide cylinder (712) is greater than the length of the arc block (77).

6. The prefabricated cement slab transport device according to claim 5, characterized in that: The entire slide groove (78) is located inside the housing (711), and the friction force between the counterweight block (79) and the slide groove (78) is smaller than the weight of the deceleration block (710) itself.

7. The prefabricated cement slab transport device according to claim 6, characterized in that: The end of the deceleration block (710) away from the rotating shaft (3) is arc-shaped, and the deceleration block (710) is made of rubber.

8. The prefabricated cement slab transport device according to claim 7, characterized in that: The lubricating mechanism (8) includes a lubricating oil tank (81), the side of the lubricating oil tank (81) is fixedly connected to the inner wall of the housing (711), and an oil filling pipe (82) and an oil outlet pipe (84) are respectively passed through and fixedly connected on both sides of the lubricating oil tank (81), and a sealing plug (83) is provided at one end of the lubricating oil tank (81) away from the lubricating oil tank (81), and a pressure chamber (85) is fixedly connected to the side of the lubricating oil tank (81) close to the oil outlet pipe (84), and the interior of the pressure chamber (85) is provided with a sealing plug (83). A return spring (86) is provided, and the interior of the pressure chamber (85) is connected to a piston rod C (87) in a sliding manner via the return spring (86). An air intake pipe (88) is passed through and fixedly connected to the top of the pressure chamber (85), and a pressurizing pipe (89) is passed through and fixedly connected to the side of the pressure chamber (85). The end of the pressurizing pipe (89) away from the pressure chamber (85) is passed through and fixedly connected to the lubricating oil tank (81), and a one-way valve is provided inside both the air intake pipe (88) and the pressurizing pipe (89).

9. The prefabricated cement slab transport device according to claim 8, characterized in that: The end of the piston rod C (87) away from the return spring (86) is located on the right side of the speed reduction block (710).

10. The prefabricated cement slab transport device according to claim 9, characterized in that: The one-way valve in the air inlet pipe (88) is one-way directed toward the interior of the pressure chamber (85), and the one-way valve in the pressurizing pipe (89) is one-way directed toward the interior of the lubricating oil tank (81).

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