Hand-held nozzle control for tunnel concrete spraying

Abstract

The utility model discloses a handheld spray head control device for tunnel concrete injection relates to tunnel construction technical field, including support plate, the support plate is connected with adjusting assembly, adjusting assembly is connected with the object table, adjusting assembly includes lower fixed base, lower fixed base is fixedly connected with support plate, lower fixed base bolt connection has the upper fixed base, and lower fixed base and upper fixed base are opened and have the accommodating groove, the accommodating groove swing joint has the ball, the ball fixedly connected with the guide boss, lower fixed base is opened and has the guide groove, the guide groove is linked with the accommodating groove, and the guide boss and guide groove sliding fit, the utility model discloses the rotation of ball in accommodating groove realizes the multi -angle rotation of spray head, and the operator only needs to push the object table to complete the angle's adjustment, and the operation is simple, and it is not necessary to continue to send the force, has reduced the labor intensity, avoided the influence construction progress, has reduced the possibility of occupational disease caused by high -intensity operation simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, and in particular to a handheld nozzle control device for tunnel concrete spraying. Background Technology

[0002] In tunnel construction, in order to form an active support structure for the surrounding rock, thereby ensuring construction safety, controlling the deformation of the surrounding rock, and providing a stable foundation for subsequent projects, sprayed concrete is applied to the surrounding rock using nozzles.

[0003] In tunnel construction, shotcrete is an efficient and flexible support method. Depending on the project requirements, equipment type, and construction environment, the control methods of the shotcrete nozzles are divided into manual control and mechanical control.

[0004] Manual control refers to the operator directly adjusting the direction and angle of concrete spraying by holding the nozzle or operating a simple robotic arm. However, manually rotating the nozzle to adjust the spraying angle of concrete requires the operator to apply continuous force. Especially when working on the arch or side wall, the operator needs to frequently change posture, which consumes a lot of physical strength and makes the operator prone to fatigue. Utility Model Content

[0005] In view of the above-mentioned problem that manually rotating the nozzle to adjust the spraying angle of concrete requires the operator to apply continuous force, especially when working on the arch or side wall, the operator needs to frequently change posture, which consumes a lot of physical strength and easily causes operator fatigue, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a handheld nozzle control device for tunnel concrete spraying. The nozzle can be rotated at multiple angles by the rotation of a ball in the receiving groove. The operator only needs to push the platform to adjust the angle. The operation is simple, does not require continuous force, reduces labor intensity, avoids affecting the construction progress, and reduces the possibility of occupational diseases caused by high-intensity work.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a handheld nozzle control device for tunnel concrete spraying, including a support plate, wherein the support plate is connected to an adjustment component, and the adjustment component is connected to a platform; The adjustment assembly includes a lower fixed seat, which is fixedly connected to a support plate. An upper fixed seat is bolted to the lower fixed seat. The lower fixed seat and the upper fixed seat are provided with a receiving groove. A ball is movably connected to the receiving groove. A guide protrusion is fixedly connected to the ball. The lower fixed seat is provided with a guide groove, which communicates with the receiving groove. The guide protrusion slides in cooperation with the guide groove.

[0008] As a preferred embodiment of the handheld nozzle control device for tunnel concrete spraying described in this utility model, the upper fixed base is connected to a locking component; The locking assembly includes a guide plate, which is fixedly connected to the upper fixed seat. A screw is threadedly connected to the guide plate. A handle is fixedly connected to one end of the screw, and a locking block is rotatably connected to the other end of the screw. A rubber pad is fixedly installed on the end of the locking block near the ball.

[0009] In a preferred embodiment of the handheld nozzle control device for tunnel concrete spraying described in this utility model, the lower surface of the locking block is in contact with the upper surface of the upper fixing seat.

[0010] In a preferred embodiment of the handheld nozzle control device for tunnel concrete spraying described in this utility model, the upper end of the ball extends out of the upper fixed seat and is fixedly connected to a support rod, and the support rod is fixedly connected to the lower side of the platform.

[0011] As a preferred embodiment of the handheld nozzle control device for tunnel concrete spraying described in this utility model, the platform is connected to a fixing component. The fixing component includes a positioning hoop, which is fixedly connected to the upper surface of the shelf. One end of the positioning hoop is rotatably connected to a limit hoop, and the other end of the positioning hoop is bolted to the limit hoop.

[0012] In a preferred embodiment of the handheld nozzle control device for tunnel concrete spraying described in this utility model, the lower surface of the support plate is welded with support legs, and the lower surface of several support legs is welded with a base plate.

[0013] The beneficial effects of this utility model are: 1. This utility model achieves multi-angle rotation of the nozzle by rotating the ball in the receiving groove. The operator only needs to push the platform to complete the angle adjustment. The operation is simple, does not require continuous force, reduces labor intensity, avoids affecting the construction progress, and reduces the possibility of occupational diseases caused by high-intensity work.

[0014] 2. This utility model uses a rotating handle to rotate and move the screw, which in turn pushes the locking block to press the rolling ball. The rubber pad increases the friction between the locking block and the rolling ball, thus fixing the angle of the nozzle and preventing the concrete spraying direction from deviating during operation.

[0015] 3. This utility model uses support legs to transmit the reaction force of the spray to the substrate, and finally to the ground, thereby reducing the shaking amplitude of the device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of a handheld nozzle control device for tunnel concrete spraying according to the present invention.

[0017] Figure 2 This is a cross-sectional view of a handheld nozzle control device for tunnel concrete spraying according to the present invention.

[0018] Figure 3 for Figure 1 Enlarged diagram of point A in the middle.

[0019] Figure 4 for Figure 2 Enlarged diagram of point B in the middle.

[0020] Explanation of reference numerals in the attached figures: 1. Support plate; 2. Adjustment assembly; 201. Lower fixed seat; 202. Upper fixed seat; 203. Receiving groove; 204. Ball bearing; 205. Guide protrusion; 206. Guide groove; 3. Display platform; 4. Locking assembly; 401. Guide plate; 402. Screw; 403. Handle; 404. Locking block; 405. Rubber pad; 5. Support rod; 6. Fixing assembly; 601. Positioning clamp; 602. Limiting clamp; 7. Support leg; 8. Base plate. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Example 1 Reference Figures 1-4 This is the first embodiment of the present utility model, which provides a handheld nozzle control device for tunnel concrete spraying, including a support plate 1, an adjustment component 2 connected to the support plate 1, and a platform 3 connected to the adjustment component 2. The adjusting component 2 includes a lower fixed seat 201, which is fixedly connected to the support plate 1. The lower fixed seat 201 is bolted to an upper fixed seat 202. The lower fixed seat 201 and the upper fixed seat 202 are provided with a receiving groove 203. A ball 204 is movably connected to the receiving groove 203. A guide protrusion 205 is fixedly connected to the ball 204. The lower fixed seat 201 is provided with a guide groove 206, which communicates with the receiving groove 203. The guide protrusion 205 slides in cooperation with the guide groove 206.

[0023] The upper fixed base 202 is connected to the locking component 4; The locking assembly 4 includes a guide plate 401, which is fixedly connected to the upper fixed seat 202. The guide plate 401 is threadedly connected to a screw 402. One end of the screw 402 is fixedly connected to a handle 403, and the other end of the screw 402 is rotatably connected to a locking block 404. A rubber pad 405 is fixedly installed on one end of the locking block 404 near the ball 204.

[0024] The lower surface of the locking block 404 is in contact with the upper surface of the upper fixing seat 202.

[0025] Example 2 Reference Figures 1-4 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the upper end of the ball 204 extends out of the upper fixed seat 202 and is fixedly connected to the support rod 5. The support rod 5 is fixedly connected to the lower side of the shelf 3.

[0026] The shelf 3 is connected to a fixing component 6; The fixing component 6 includes a positioning hoop 601, which is fixedly connected to the upper surface of the shelf 3. One end of the positioning hoop 601 is rotatably connected to a limiting hoop 602, and the other end of the positioning hoop 601 is bolted to the limiting hoop 602.

[0027] Support legs 7 are welded to the lower surface of support plate 1, and base plates 8 are welded to the lower surface of several support legs 7.

[0028] When in use, rotate the limiting clamp 602 to open the limiting clamp 602 and the positioning clamp 601, then place the nozzle in the groove of the limiting clamp 602, and then rotate the limiting clamp 602 in the opposite direction to close the limiting clamp 602 and the positioning clamp 601, and connect the two with bolts.

[0029] The operator can adjust the orientation of the nozzle on the platform 3 by operating the platform 3 or the support rod 5 to make the ball 204 rotate in the receiving groove 203. By moving the platform 3 or the support rod 5, the guide protrusion 205 can slide in the guide groove 206, thereby adjusting the pitch angle of the nozzle on the platform 3. This achieves the purpose of multi-angle adjustment of the nozzle. The operation is simple, does not require continuous force, and does not require the operator to hold the nozzle, thus reducing labor intensity.

[0030] Before the nozzle sprays concrete, rotating the handle 403 causes the screw 402 to rotate and move. Since the lower surface of the locking block 404 is in contact with the upper surface of the upper fixed seat 202, the locking block 404 is restricted to only move with the screw 402 and will not rotate with the screw 402. Finally, the locking block 404 presses the ball 204, and the friction between the locking block 404 and the ball 204 is increased by the rubber pad 405, which fixes the angle of the nozzle and prevents the concrete spraying direction from deviating during operation.

[0031] When the nozzle sprays concrete, the support leg 7 transmits the reaction force of the spray to the base plate 8, and finally to the ground, reducing the swaying amplitude of the device and preventing it from tipping over.

[0032] The remaining structure is the same as that in Example 1.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A handheld nozzle control device for tunnel concrete spraying, characterized in that: Includes a support plate (1), the support plate (1) is connected to an adjustment component (2), and the adjustment component (2) is connected to a shelf (3); The adjustment component (2) includes a lower fixed seat (201), which is fixedly connected to the support plate (1). The lower fixed seat (201) is bolted to an upper fixed seat (202). The lower fixed seat (201) and the upper fixed seat (202) are provided with a receiving groove (203). The receiving groove (203) is movably connected to a ball (204). The ball (204) is fixedly connected to a guide protrusion (205). The lower fixed seat (201) is provided with a guide groove (206). The guide groove (206) communicates with the receiving groove (203). The guide protrusion (205) slides with the guide groove (206).

2. The handheld nozzle control device for tunnel concrete spraying according to claim 1, characterized in that: The upper fixing seat (202) is connected to a locking component (4); The locking assembly (4) includes a guide plate (401), which is fixedly connected to the upper fixed seat (202). The guide plate (401) is threadedly connected to a screw (402). One end of the screw (402) is fixedly connected to a handle (403), and the other end of the screw (402) is rotatably connected to a locking block (404). A rubber pad (405) is fixedly installed on one end of the locking block (404) near the ball (204).

3. The handheld nozzle control device for tunnel concrete spraying according to claim 2, characterized in that: The lower surface of the locking block (404) is in contact with the upper surface of the upper fixing seat (202).

4. The handheld nozzle control device for tunnel concrete spraying according to claim 1, characterized in that: The upper end of the ball (204) extends out of the upper fixed seat (202) and is fixedly connected to a support rod (5), which is fixedly connected to the lower side of the shelf (3).

5. A handheld nozzle control device for tunnel concrete spraying according to claim 1 or 4, characterized in that: The shelf (3) is connected to a fixing component (6); The fixing component (6) includes a positioning hoop (601), which is fixedly connected to the upper surface of the platform (3). One end of the positioning hoop (601) is rotatably connected to a limiting hoop (602), and the other end of the positioning hoop (601) is bolted to the limiting hoop (602).

6. The handheld nozzle control device for tunnel concrete spraying according to claim 1, characterized in that: The lower surface of the support plate (1) is welded with support legs (7), and the lower surface of a plurality of the support legs (7) is welded with substrates (8).

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