Fully-sealed circulating guniting device
By using the screening and mixing devices of the fully sealed circulating shotcrete device, the problem of uneven mixing in the shotcrete device was solved, achieving uniform mixing and efficient screening of shotcrete raw materials, thus improving shotcrete quality and work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN HUANNENG VALVE EQUIP CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-01
AI Technical Summary
Existing shotcrete equipment often results in insufficient and uneven mixing of the shotcrete, making it difficult to achieve the required quality. In addition, existing equipment is expensive or has low output, which affects work efficiency.
A fully sealed circulating spraying device was designed, which includes a screening device and a stirring device. The screening plate is shaken and screened by a motor-driven rotating shaft and gear system, and the stirring rod is driven by a sprocket and chain to rotate and stir, ensuring that the raw materials are mixed evenly.
It achieves effective screening and uniform mixing of spraying raw materials, prevents large particles from clogging, and improves spraying quality and work efficiency.
Smart Images
Figure CN224187568U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of shotcrete technology, specifically relating to a fully sealed circulating shotcrete device. Background Technology
[0002] Shotcrete systems are equipment used in mining, tunneling, and construction projects. Their design aims to achieve a fully sealed shotcrete process, reducing environmental pollution and improving construction safety and efficiency. These systems are commonly used for spraying concrete or other reinforcement materials and are widely applied in tunnel support, underground engineering reinforcement, and mining support operations.
[0003] Existing concrete spray guns are mostly used for dry concrete. The concrete is mixed with water in the spray gun before being sprayed out. Due to the short contact time in the spray gun, the mixing is often insufficient and uneven, making it difficult for the sprayed concrete to meet the required quality. Equipment that can spray wet concrete mixed with water is often expensive and has a relatively small output. It cannot complete the task when a long conveying time is required, which affects work efficiency.
[0004] Therefore, we propose a fully sealed circulating shotcrete device. Utility Model Content
[0005] The purpose of this invention is to provide a fully sealed circulating shotcrete device that can solve the problem in related technologies of not being able to remove larger particles from shotcrete raw materials.
[0006] The specific technical solution adopted by this utility model is as follows:
[0007] A fully sealed circulating shotcrete device includes a push plate, a universal wheel at the bottom of the push plate, a shotcrete device at the top of the push plate, a support frame fixedly connected to the top of the push plate, and a screening device at the top of the push plate.
[0008] The screening device includes a screening box, the bottom of which is fixedly connected to the top of a support frame. A sliding groove is provided on the side of the screening box, and a screening plate is slidably connected to the inner wall of the sliding groove. A motor is fixedly connected to the top of the push plate, and a rotating shaft is fixedly connected to the output shaft of the motor. A half gear is fixedly connected to the top of the rotating shaft. A rack is slidably connected to the front side of the screening box, and a push bar is fixedly connected to the top of the rack.
[0009] A force-bearing plate is fixedly connected to the back side of the rack, and a tension spring is fixedly connected to the side of the force-bearing plate. The end of the tension spring away from the force-bearing plate is fixedly connected to the side of the screening box. The function of the tension spring is to allow the rack to reset when the half gear stops pushing the rack.
[0010] A return spring is fixedly connected to the inner wall of the chute. The return spring is located on the side away from the screening plate. A discharge port is opened on the side of the screening box. A discharge pipe is fixedly connected to the inner wall of the discharge port. The function of the return spring is to allow the screening plate to be reset when the push bar stops pushing the screening plate.
[0011] The number of the chute, screening plate, and return spring are each set to two, and they are arranged linearly along the vertical central axis of the screening box. The circumferential surface of the half gear meshes with the front side of the rack. The side of the screening plate is located on the displacement trajectory of the push bar. The purpose of setting the number of the chute, screening plate, and return spring to two, and arranging them linearly along the vertical central axis of the screening box, is to enable better screening.
[0012] The top of the push plate is equipped with a stirring device, which includes a stirring barrel. The bottom of the stirring barrel is fixedly connected to the top of the push plate. A rotating rod is rotatably passed through the inner wall of the stirring barrel. A connecting plate is fixedly connected to the circumferential surface of the rotating rod. A stirring rod is fixedly connected to the inner wall of the connecting plate. A stirring bar is fixedly connected to the circumferential surface of the stirring rod. The function of the stirring rod and the stirring bar is to stir and mix the raw materials in the stirring barrel.
[0013] A sprocket is fixedly connected to the circumferential surface of the rotating shaft. A chain is provided on the circumferential surface of the sprocket, and a sprocket is provided on the inner wall of the chain. The inner wall of the sprocket is fixedly connected to the circumferential surface of the rotating rod. The function of the chain is to drive the sprocket to rotate through the sprocket.
[0014] The number of stirring bars is set to several and arranged linearly along the vertical central axis of the stirring rod. The circumferential surface of the first sprocket meshes with the inner wall of the chain, and the inner wall of the chain meshes with the circumferential surface of the second sprocket. The purpose of setting the number of stirring bars to several and arranging them linearly along the vertical central axis of the stirring rod is to improve the stirring effect.
[0015] The technical effects achieved by this utility model are as follows:
[0016] 1. This utility model, through the setting of the screening device, enables the output shaft of the motor to rotate, which in turn drives the rotating shaft to rotate. When the rotating shaft rotates, it drives the half gear to rotate. When the half gear rotates, it pushes the rack to the left, which in turn drives the pusher to move. The pusher then pushes the screening plate, allowing the screening plate to slide within the chute. When the half gear rotates to the toothless side, the rack will return to its original position using the tension spring because it is no longer pushed by the half gear. This allows the screening plate to return to its original position using the return spring. When the half gear rotates to the toothed side again, the above principle is repeated, thus achieving intermittent shaking of the screening plate, resulting in better screening effect and preventing some large raw material particles from clogging the spraying device.
[0017] 2. This utility model, through the setting of the stirring device, enables the rotating rod to rotate inside the mixing tank through sprocket one, chain and sprocket two when the reciprocating screw rotates. When the rotating rod rotates, it will drive the stirring rod to rotate through the connecting plate, so that the stirring rod can stir the raw materials in the mixing tank. When the stirring rod rotates, it can drive multiple stirring strips to rotate, thereby uniformly stirring the raw materials in the mixing tank. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the entire utility model;
[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the screening device of this utility model;
[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the stirring device of this utility model;
[0021] Figure 4 This is a utility model Figure 2 A schematic diagram of the three-dimensional magnified structure at point A in the middle;
[0022] Figure 5 This is a utility model Figure 3 A schematic diagram of the three-dimensional magnified structure at point B.
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 1. Push plate; 2. Casters; 3. Shotcrete device; 4. Support frame; 5. Screening device; 51. Screening box; 52. Slide chute; 53. Screening plate; 54. Motor; 55. Rotating shaft; 56. Half gear; 57. Rack; 58. Push bar; 59. Force plate; 510. Tension spring; 511. Return spring; 512. Discharge port; 513. Discharge pipe; 6. Mixing device; 61. Mixing tank; 62. Rotating rod; 63. Connecting plate; 64. Mixing rod; 65. Mixing bar; 66. Sprocket one; 67. Chain; 68. Sprocket two. Detailed Implementation
[0025] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0026] like Figure 1-5 As shown, a fully sealed circulating shotcrete device includes a push plate 1, a universal wheel 2 is provided at the bottom of the push plate 1, a shotcrete device 3 is provided at the top of the push plate 1, a support frame 4 is fixedly connected to the top of the push plate 1, and a screening device 5 is provided at the top of the push plate 1.
[0027] The screening device 5 includes a screening box 51, the bottom of which is fixedly connected to the top of the support frame 4. A sliding groove 52 is provided on the side of the screening box 51, and a screening plate 53 is slidably connected to the inner wall of the sliding groove 52. A motor 54 is fixedly connected to the top of the push plate 1, and a rotating shaft 55 is fixedly connected to the output shaft of the motor 54. A half gear 56 is fixedly connected to the top of the rotating shaft 55. A rack 57 is slidably connected to the front side of the screening box 51, and a pusher 58 is fixedly connected to the top of the rack 57.
[0028] A force plate 59 is fixedly connected to the back side of the rack 57, and a tension spring 510 is fixedly connected to the side of the force plate 59. The end of the tension spring 510 away from the force plate 59 is fixedly connected to the side of the screening box 51. The function of the tension spring 510 is to allow the rack 57 to reset when the half gear 56 stops pushing it.
[0029] A return spring 511 is fixedly connected to the inner wall of the chute 52. The return spring 511 is located away from the side of the screening plate 53. A discharge port 512 is provided on the side of the screening box 51. A discharge pipe 513 is fixedly connected to the inner wall of the discharge port 512. The function of the return spring 511 is to allow the screening plate 53 to be reset when the push bar 58 stops pushing the screening plate 53.
[0030] The number of grooves 52, screening plates 53 and return springs 511 are each set to two, and they are arranged linearly along the vertical central axis of the screening box 51. The circumferential surface of the half gear 56 meshes with the front side of the rack 57. The side of the screening plate 53 is located on the displacement trajectory of the push bar 58. The purpose of setting the number of grooves 52, screening plates 53 and return springs 511 to two, and arranging them linearly along the vertical central axis of the screening box 51, is to enable better screening.
[0031] Based on the above structure, firstly, when the spraying device 3 is needed, the raw material for spraying can be screened by the screening device 5 to prevent some large raw material particles from clogging the spraying device 3. The raw material is poured into the screening box 51, and then the motor 54 is started. When the output shaft of the motor 54 rotates, it will drive the rotating shaft 55 to rotate. When the rotating shaft 55 rotates, it will drive the half gear 56 to rotate. When the half gear 56 rotates, it will push the rack 57 to move to the left. When the rack 57 moves to the left, it can drive the pusher 58 to move. When the pusher 58 moves, it can push the screening plate 53, so that the screening plate 53 can slide in the chute 52. When the half gear 56 rotates to the toothless side, the rack 57 will be reset by the tension spring 510 because it will not be pushed by the half gear 56. Then the screening plate 53 can be reset by the reset spring 511. When the half gear 56 rotates to the toothed side again, the above principle will be repeated, so as to achieve the indirect shaking of the screening plate 53, making the screening effect better.
[0032] like Figure 1-5 As shown, a stirring device 6 is provided on the top of the push plate 1. The stirring device 6 includes a stirring tank 61. The bottom of the stirring tank 61 is fixedly connected to the top of the push plate 1. A rotating rod 62 is rotatably passed through the inner wall of the stirring tank 61. A connecting plate 63 is fixedly connected to the circumferential surface of the rotating rod 62. A stirring rod 64 is fixedly connected to the inner wall of the connecting plate 63. A stirring strip 65 is fixedly connected to the circumferential surface of the stirring rod 64. The function of the stirring rod 64 and the stirring strip 65 is to stir and mix the raw materials in the stirring tank 61.
[0033] A sprocket 66 is fixedly connected to the circumferential surface of the rotating shaft 55. A chain 67 is provided on the circumferential surface of the sprocket 66. A sprocket 68 is provided on the inner wall of the chain 67. The inner wall of the sprocket 68 is fixedly connected to the circumferential surface of the rotating rod 62. The function of the chain 67 is to drive the sprocket 68 to rotate through the sprocket 66.
[0034] The number of stirring bars 65 is set to several and arranged linearly along the vertical central axis of the stirring rod 64. The circumferential surface of sprocket 1 66 meshes with the inner wall of chain 67, and the inner wall of chain 67 meshes with the circumferential surface of sprocket 2 68. The purpose of setting the number of stirring bars 65 to several and arranging them linearly along the vertical central axis of the stirring rod 64 is to achieve better stirring effect.
[0035] According to the above structure, the rotation of the rotating shaft 55 can drive the stirring device 6. After the raw material is screened, it will enter the mixing tank 61 through the discharge port 512 and the discharge pipe 513. When the rotating shaft 55 rotates, it will drive the first sprocket 66 to rotate. When the first sprocket 66 rotates, it will drive the chain 67 to rotate. When the chain 67 rotates, it will drive the second sprocket 68 to rotate. When the second sprocket 68 rotates, it will drive the rotating rod 62 to rotate inside the mixing tank 61. When the rotating rod 62 rotates, it will drive the stirring rod 64 to rotate through the connecting plate 63, so that the stirring rod 64 can stir the raw material in the mixing tank 61. When the stirring rod 64 rotates, it can drive multiple stirring bars 65 to rotate, thereby uniformly stirring the raw material in the mixing tank 61.
[0036] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A totally enclosed circulating gunning apparatus characterized by: Includes a push plate (1), the bottom of the push plate (1) is provided with casters (2), the top of the push plate (1) is provided with a shotcrete device (3), the top of the push plate (1) is fixedly connected with a support frame (4), and the top of the push plate (1) is provided with a screening device (5). The screening device (5) includes a screening box (51), the bottom of which is fixedly connected to the top of the support frame (4). A sliding groove (52) is provided on the side of the screening box (51). A screening plate (53) is slidably connected to the inner wall of the sliding groove (52). A motor (54) is fixedly connected to the top of the push plate (1). A rotating shaft (55) is fixedly connected to the output shaft of the motor (54). A half gear (56) is fixedly connected to the top of the rotating shaft (55). A rack (57) is slidably connected to the front side of the screening box (51). A push bar (58) is fixedly connected to the top of the rack (57).
2. The fully sealed circulating shotcrete device according to claim 1, characterized in that: A force plate (59) is fixedly connected to the back side of the rack (57), and a tension spring (510) is fixedly connected to the side of the force plate (59). The end of the tension spring (510) away from the force plate (59) is fixedly connected to the side of the screening box (51).
3. The fully sealed circulating shotcrete device according to claim 1, characterized in that: A return spring (511) is fixedly connected to the inner wall of the chute (52). The return spring (511) is located away from the side of the screening plate (53). A discharge port (512) is opened on the side of the screening box (51). A discharge pipe (513) is fixedly connected to the inner wall of the discharge port (512).
4. The fully sealed circulating shotcrete device according to claim 1, characterized in that: The number of the slide groove (52), the screening plate (53) and the return spring (511) are each set to two, and are arranged linearly along the vertical central axis of the screening box (51). The circumferential surface of the half gear (56) meshes with the front side of the rack (57), and the side of the screening plate (53) is located on the displacement trajectory of the push bar (58).
5. The fully sealed circulating shotcrete device according to claim 1, characterized in that: The top of the push plate (1) is provided with a stirring device (6), which includes a stirring tank (61). The bottom of the stirring tank (61) is fixedly connected to the top of the push plate (1). A rotating rod (62) is rotatably passed through the inner wall of the stirring tank (61). A connecting plate (63) is fixedly connected to the circumferential surface of the rotating rod (62). A stirring rod (64) is fixedly connected to the inner wall of the connecting plate (63). A stirring bar (65) is fixedly connected to the circumferential surface of the stirring rod (64).
6. A fully sealed circulating shotcrete device according to claim 5, characterized in that: A sprocket (66) is fixedly connected to the circumferential surface of the rotating shaft (55). A chain (67) is provided on the circumferential surface of the sprocket (66). A sprocket (68) is provided on the inner wall of the chain (67). The inner wall of the sprocket (68) is fixedly connected to the circumferential surface of the rotating rod (62).
7. A totally enclosed circulating gunning apparatus as defined in claim 6, wherein: The number of stirring bars (65) is set to several, and they are arranged in a linear array along the vertical central axis of the stirring rod (64). The circumferential surface of the first sprocket (66) meshes with the inner wall of the chain (67), and the inner wall of the chain (67) meshes with the circumferential surface of the second sprocket (68).