A slope concrete spray nozzle support device

Abstract

This utility model provides a slope concrete spraying nozzle support device, including a base, a support rod, an adjusting rod, and a nozzle fixing seat. A moving mechanism is provided at the bottom of the base; the bottom end of the support rod is hinged to the base; one end of the adjusting rod is hinged to the base, and the other end is slidably connected to the support rod; the nozzle fixing seat is hinged to the top of the support rod and is used to fix the nozzle of the spraying pipe. This utility model allows for more convenient and quick adjustment of the distance, height, spraying direction, and spraying angle between the nozzle and the working surface, ensuring the quality of concrete spraying operations and improving operational safety.

Description

Technical Field

[0001] This utility model belongs to the field of concrete spraying technology, and in particular relates to a support device for a concrete spraying nozzle on a slope. Background Technology

[0002] Shotcrete technology is applied in various technical fields such as foundation pit support, slope treatment, and tunnel engineering. In foundation pit support or slope treatment, there are two forms: slope protection and vertical support. Each method has certain requirements for the spraying height and angle of the shotcrete. In the current technology, shotcrete operation is usually carried out manually, that is, the worker holds the spray pipe with both hands and aims the nozzle at the working area. This method often has problems such as excessive spraying height, difficulty in accurately controlling the verticality and spacing of the spray, and difficulty in keeping the nozzle fixed, which makes it difficult to guarantee the construction quality. Moreover, the shotcrete operation is usually carried out in two spraying stages. Due to the bottom-up spraying and the wide spraying area, the labor intensity of the workers is high and the construction efficiency is low. In addition, due to the high pressure of the air compressor during construction, manual spraying inevitably poses safety hazards. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a slope concrete spraying nozzle support device, which can more conveniently and quickly adjust the distance, height and spraying angle between the nozzle of the spraying pipe and the working surface, ensuring the quality of concrete spraying operations and improving operational safety.

[0004] The technical solution adopted by this utility model is: a slope concrete spray nozzle support device, including a base, a support rod, an adjusting rod and a nozzle fixing seat; the bottom of the base is provided with a moving mechanism; the bottom end of the support rod is hinged to the base; one end of the adjusting rod is hinged to the base and the other end is slidably connected to the support rod; the nozzle fixing seat is hinged to the top end of the support rod and is used to fix the nozzle of the spray pipe.

[0005] Furthermore, the support rod includes a fixed section and a rotating section, the rotating section being rotatably connected to the fixed section; the nozzle mounting base is hinged to the top of the rotating section.

[0006] Furthermore, the swivel joint is capable of moving axially along the fixed joint.

[0007] Furthermore, the fixed section is threadedly connected with a first locating pin for abutting and fixing the rotating section.

[0008] Furthermore, an adjusting fixing sleeve is slidably connected to the outer side of the fixing section, and the adjusting rod is connected to the opposite ends of the adjusting fixing sleeve.

[0009] Furthermore, the adjusting fixing sleeve is threadedly connected with a second locating pin for abutting against the fixing section.

[0010] Furthermore, the nozzle fixing base includes a fixing sleeve, a connecting seat, and a limiting component; the fixing sleeve is disposed at the top of the connecting seat and is used to fix the spray pipe; the connecting seat is hinged to the top of the rotating joint and is used to drive the fixing sleeve to rotate; one end of the limiting component is hinged to the rotating joint and the other end is slidably connected to the bottom end of the fixing sleeve and is used to limit the angle of the fixing sleeve.

[0011] Furthermore, the fixing sleeve is a tubular structure with openings at both ends.

[0012] Furthermore, the limiting assembly includes a telescopic rod, a sliding member, and a third positioning pin; one end of the telescopic rod is hinged to the rotary joint, and the other end is hinged to the sliding member; the sliding member is adapted to the groove at the bottom end of the fixed sleeve and can move along the groove; the third positioning pin is threaded to the sliding member and is used to limit the position of the sliding member in the groove.

[0013] The method of using the above-mentioned slope concrete spray nozzle support device includes the following steps:

[0014] Move the slope concrete spray nozzle support device to the set position in front of the slope and install the spray pipe;

[0015] Adjust the length and tilt angle of the support rod so that the height of the fixing sleeve and the distance between the fixing sleeve and the slope meet the usage requirements;

[0016] Rotate the rotary joint to orient the nozzle toward the slope;

[0017] Adjust the angle between the spray direction of the nozzle and the working surface of the slope;

[0018] Place the counterweight on the base;

[0019] Spraying operations are carried out.

[0020] The advantages and positive effects of this utility model are:

[0021] (1) By setting up support rods, adjusting rods and nozzle fixing seats, the distance, height, spraying direction and spraying angle between the nozzle of the spraying pipe and the working surface can be adjusted conveniently and quickly to achieve the best spraying effect and ensure the quality of concrete spraying operations; compared with manual spraying, it reduces the workload and labor intensity of manual operations and improves the safety of operations.

[0022] (2) By setting a rotary joint and a nozzle fixing seat, the nozzle can rotate in all directions, making it easy to operate and precise to adjust. Regardless of the site conditions or the attitude of the device itself, the nozzle can be adjusted to meet the direction and spray angle required for operation.

[0023] (3) The device has a simple overall structure, is easy to manufacture, is easy to move, and can be reused. Attached Figure Description

[0024] Figure 1 This is a front view of the structure of a specific embodiment of this utility model;

[0025] Figure 2 This is a structural side view of a specific embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the limiting component structure of a specific embodiment of this utility model.

[0027] In the picture:

[0028] 1. Base; 2. Counterweight; 3. Fixed section; 4. Rotary section; 5. Adjusting and fixing sleeve; 6. Adjusting rod; 7. Nozzle fixing seat; 8. Limiting component; 9. Moving mechanism; 10. Locking component; 11. Pin; 12. Fixing sleeve; 13. Spray pipe; 14. Nozzle. Detailed Implementation

[0029] The embodiments of this utility model will now be described with reference to the accompanying drawings.

[0030] This utility model provides a slope concrete spraying nozzle support device and its usage method. It is used to adjust the distance, height and spraying angle between the nozzle of the spraying pipe and the working surface when carrying out slope concrete spraying operations in foundation pit support, slope treatment or tunnel engineering. It is easy to manufacture, simple to operate, and applicable to various working conditions. It reduces the workload and labor intensity of manual operations and improves the quality and safety of spraying operations.

[0031] like Figures 1 to 2As shown in the embodiment of this application, a slope concrete spraying nozzle support device is proposed, including a base 1, a support rod, an adjusting rod 6, and a nozzle fixing seat 7; the bottom of the base 1 is provided with a moving mechanism 9; the bottom end of the support rod is hinged to the base 1; one end of the adjusting rod 6 is hinged to the base 1, and the other end is slidably connected to the support rod; the nozzle fixing seat 7 is hinged to the top end of the support rod and is used to fix the nozzle 14 of the spraying pipe 13. By setting the moving mechanism 9, the entire device can be quickly and easily moved to different positions on the slope, enabling continuous spraying operations and covering the entire slope area. The support rod and adjusting rod 6 connect to the base 1 to form a triangular support structure, providing stable support for the nozzle mounting base 7. Adjusting the connection position between the adjusting rod 6 and the support rod allows for adjustment of the support rod's tilt angle relative to the base 1, resulting in different heights for the nozzle mounting base 7 at the top of the support rod to meet the height requirements of the spraying operation. Simultaneously, adjusting the angle of the nozzle mounting base 7 relative to the support rod rotates the nozzle 14 of the spray pipe 13 to a set spray angle, which is the angle between the spray direction and the spraying surface. Optimal spraying effect is achieved when the spray angle is at the set value. Through these settings, the distance, height, and spray angle between the nozzle 14 of the spray pipe 13 and the spraying surface can be adjusted according to different spraying surfaces, meeting the needs of various working conditions. The operation is simple, reducing the workload and labor intensity of manual operations and improving the quality and safety of the spraying operation.

[0032] Preferably, the moving mechanism 9 is provided with a locking component 10, which can lock the base 1 after it reaches the set position to prevent the device from moving during use and affecting the spray quality.

[0033] The base 1 can be of any shape, such as a frame structure or a flat plate. In this embodiment, the base 1 is a triangular flat plate, and the support rod and the adjusting rod 6 are connected to different parts of the base 1 by a pin 10. In use, a counterweight 2 can be placed on the base 1 to prevent the base 1 from overturning under the weight of the spray pipe 13 and the spray impact force.

[0034] Furthermore, in the embodiments of this application, the support rod includes a fixed section 3 and a rotating section 4, with the rotating section 4 rotatably connected to the fixed section 3; the nozzle fixing seat 7 is hinged to the top of the rotating section 4. It is understood that during spraying operations, the concrete sprayed from the nozzle 14 of the spraying pipe 13 falls onto the spraying surface, forming a certain spraying range. Since the spraying trajectory of the concrete is parabolic, normally, the nozzle 14 of the spraying pipe 13 and the center of its spraying range are on the same vertical plane. When the base 1 is fixed at a set position in front of the slope, and the nozzle 14 of the spraying pipe 13 is not on the same vertical plane as the center of the spraying surface to be sprayed, the direction of the nozzle 14 of the spraying pipe 13 can be adjusted by adjusting the rotating section 4 to ensure accurate spraying position. Compared to adjusting the direction of the nozzle 14 of the spray pipe 13 via the moving mechanism 9, this setting makes operation more convenient and adjustment more precise, avoiding the need to repeatedly move and adjust the position of the device. In addition, this setting also reduces the requirements for the site. When there are many obstacles or the site is relatively narrow, the device can only be set at a set angle and position. The direction of the nozzle 14 of the spray pipe 13 can be adjusted by adjusting the rotating joint 4, so that the device can be used in various working conditions, enhancing the practicality of the device.

[0035] Furthermore, in the embodiments of this application, the rotating section 4 is axially movable along the fixed section 3. Since the support rod is inclined to the base 1, the length of the support rod can be adjusted by moving the rotating section 4 along the fixed section 3, thereby further adjusting the height and position of the nozzle fixing seat 7. This setting allows for two adjustments, that is, after initial fixing, an initial adjustment is made by adjusting the rod 6, and after the nozzle 14 of the spray pipe 13 is in the correct direction, a fine adjustment is made by rotating the section 4, and then the spray angle of the spray pipe 13 is adjusted. This ensures that the concrete is sprayed on the set working surface, improving the accuracy and operability of the adjustment.

[0036] Preferably, in the embodiments of this application, the fixed section 3 is sleeved on the rotating section 4, and the fixed section 3 is threadedly connected with a first positioning pin for abutting and fixing the rotating section 4. The fixed section 3 is a hollow tubular structure, and the rotating section 4 has a circular cross-section with an outer diameter smaller than the inner diameter of the fixed section 3. This allows the rotating section 4 to rotate axially relative to the fixed section 3 to adjust the direction of the nozzle fixing seat 7, and also to move axially relative to the fixed section 3 to adjust the height and position of the nozzle fixing seat 7. Ultimately, this ensures that the nozzle 14 has the required distance, height, and spray direction from the working surface. By screwing on the first positioning pin, the first positioning pin extends into the interior of the fixed section 3 and abuts against the rotating section 4, thus restricting the rotation or movement of the rotating section 4. This ensures that the rotating section 4 is stably fixed within the fixed section 3, preventing relative rotation or movement during use and avoiding any impact on the quality of the operation.

[0037] The fixed section 3 is provided with threaded holes on its pipe wall. There can be one or more threaded holes. Preferably, the threaded holes are arranged in pairs opposite to each other on the fixed section 3, so that the first positioning pins can cooperate with each other to limit the rotation section 4 from two directions respectively.

[0038] Furthermore, in this embodiment, an adjusting fixing sleeve 5 is slidably connected to the outer side of the fixed section 3, and adjusting rods 6 are connected to the opposite ends of the adjusting fixing sleeve 5. The adjusting fixing sleeve 5 can move along the axial direction of the fixed section 3. Since the length of the adjusting rod 6 is fixed, by adjusting the position of the fixing sleeve 5, the fixed section 3 can be driven to rotate around its hinge axis with the base 1, so that the angle of the fixed section 3 tilting relative to the base 1 can be continuously adjusted to meet the usage requirements under different working conditions. The two adjusting rods 6 are arranged opposite to each other, so that the adjusting rods 6 and the adjusting fixing sleeve 5 form a triangular connection structure, which has better stability.

[0039] Furthermore, in this embodiment, the adjusting fixing sleeve 5 is threadedly connected to a second positioning pin for abutting against the fixing section 3. By screwing the second positioning pin, the second positioning pin moves inward toward the adjusting fixing sleeve 5 and abuts against the fixing section 3, thereby fixing the adjusting fixing sleeve 5 in the set position of the fixing section 3, so that the fixing section 3 has a set tilt angle relative to the base 1; the adjustment is simple and the connection is reliable.

[0040] Preferably, the second positioning pin is evenly arranged around the adjusting fixing sleeve 5 in the circumferential direction to ensure its limiting stability on the fixing section 3.

[0041] Furthermore, in this embodiment, the nozzle fixing seat 7 includes a fixing sleeve 12, a connecting seat, and a limiting component 8. The fixing sleeve 12 is disposed at the top of the connecting seat and is used to fix the spray pipe 13. The connecting seat is hinged to the top of the rotating joint 4 and is used to drive the fixing sleeve 12 to rotate. One end of the limiting component 8 is hinged to the rotating joint 4, and the other end is slidably connected to the bottom end of the fixing sleeve 12, and is used to limit the angle of the fixing sleeve 12. The connecting seat is connected to the rotating joint 4 by a pin 10. The pin 10 passes through the rotating joint 4 along the diameter direction of the cross-section of the rotating joint 4, so that the fixing sleeve 12 can rotate in a vertical plane, thereby making the angle between the spray direction of the nozzle 14 and the working surface meet the spraying operation requirements. The limiting component 8 is used to fix the nozzle 14 at a position corresponding to the spray angle to prevent the nozzle 14 from rotating during the spraying operation. Through this setting, the spray angle of the nozzle 14 can be continuously adjusted to meet the spray angle requirements of different working surfaces, making the device have a wide range of applications.

[0042] Specifically, in the above embodiment, the fixing sleeve 12 has a through hole with openings at both ends. The diameter of the through hole of the fixing sleeve 12 is adapted to the outer diameter of the spray pipe 13, and the nozzle 14 of the spray pipe 13 can be inserted into the fixing sleeve 12 through the opening at one end and exit through the opening at the other end. Since the spray pipe 13 is usually made of a material with a certain degree of flexibility, when installing the spray pipe 13, the spray pipe 13 is slightly deformed by lightly pressing it and inserted into the fixing sleeve 12. Then the spray pipe 13 returns to its original state. At this time, the fixing sleeve 12 and the spray pipe 13 are tightly fitted together, and there is sufficient friction between them to prevent the spray pipe 13 from detaching from the fixing sleeve 12 during the spraying operation.

[0043] In some other embodiments of this application, the diameter of the through hole of the fixing sleeve 12 is larger than the outer diameter of the spray pipe 13. When installing the spray pipe 13, a gasket is filled in the gap between the two to fix the spray pipe 13 in the fixing sleeve 12.

[0044] Specifically, in the above embodiments, such as Figure 3 As shown, the limiting component 8 includes a telescopic rod, a sliding member, and a third positioning pin; one end of the telescopic rod is hinged to the rotary joint 4, and the other end is hinged to the sliding member; the sliding member is adapted to the slide groove at the bottom of the fixed sleeve 12 and can move along the slide groove; the third positioning pin is threaded to the sliding member and is used to limit the position of the sliding member in the slide groove. Two telescopic rods are arranged opposite each other on the rotating joint 4, with their hinge point with the rotating joint 4 located below the hinge point between the fixed sleeve 12 and the rotating joint 4. The two telescopic rods are arranged along the center line of the through hole of the fixed sleeve 12. The slide groove has a downward-facing opening, the shape of which is adapted to the sliding member, so that the sliding member can slide along the slide groove without coming out of the opening. The length of the telescopic rod can be adjusted by telescoping, and any telescoping structure in the prior art can be used, without limitation. For example, the telescopic rod includes multiple nested telescopic joints, and the telescopic joint with a larger cross-section among adjacent telescopic joints is provided with a limiting buckle, which can lock the telescopic joint with a smaller cross-section, thereby adjusting the length of the telescopic rod. In use, after adjusting the angle of the fixed seat to make the spray angle of the nozzle 14 meet the usage requirements, the length of the telescopic rod is adjusted to move the sliding member to the set position of the slide groove. Then, the limiting buckle and the third positioning pin are locked to fix the fixed sleeve 12 at the set angle. Through this setting, the fixed sleeve 12 is stably supported and limited.

[0045] This application also proposes a method for using the above-mentioned slope concrete spray nozzle support device, including the following steps:

[0046] S1. Move the slope concrete spray nozzle support device to the set position in front of the slope; install the spray pipe 13;

[0047] Before the spraying operation, the slope has been trimmed and the spraying machinery has been set up in front of the slope. The slope concrete spraying nozzle support device is moved between the spraying machinery and the slope so that the distance between them roughly meets the requirements. The entire device is located in front of the spraying operation area where the spraying operation is to be carried out. Then the spraying pipe 13 is installed on the fixed sleeve 12.

[0048] S2. Adjust the length and tilt angle of the support rod so that the height of the fixing sleeve 12 and the distance between the fixing sleeve 12 and the slope meet the usage requirements.

[0049] First, adjust the length and tilt angle of the support rod using the adjusting rod 6. Then, move the rotating joint 4 to make the height of the fixed sleeve 12 and the distance between the fixed sleeve 12 and the slope meet the requirements of the spraying operation.

[0050] S3, Rotate the rotating joint 4 so that the nozzle 14 faces the slope;

[0051] Specifically, by rotating the rotating joint 4, the nozzle 14 of the spray pipe 13 is aligned with the center of the spraying surface on the same vertical plane; then the rotating joint 4 is locked in place by the first locating pin.

[0052] S4. Adjust the angle between the spray direction of nozzle 14 and the working surface of the slope;

[0053] Specifically, loosen the third positioning pin and the limit buckle, then rotate the fixed seat. When the angle between the spray direction of the nozzle 14 and the working surface of the slope meets the requirements of the spray angle, lock the third positioning pin and the limit buckle to fix the fixed seat at the set angle. Under normal circumstances, the spray direction should be perpendicular to the working surface.

[0054] S5. Place the two counterweights on base 1;

[0055] S6. Perform spraying operation.

[0056] After completing one spraying operation, the entire device is moved to the next location to be sprayed using the moving mechanism 9. The above steps are repeated until the spraying operation of the entire slope is completed.

[0057] It is understood that the device in this application can also be used for fixing and supporting other tubular structures.

[0058] The advantages and positive effects of this utility model are:

[0059] (1) By setting up support rods, adjusting rods and nozzle fixing seats, the distance, height, spraying direction and spraying angle between the nozzle of the spraying pipe and the working surface can be adjusted conveniently and quickly to achieve the best spraying effect and ensure the quality of concrete spraying operations; compared with manual spraying, it reduces the workload and labor intensity of manual operations and improves the safety of operations.

[0060] (2) By setting a rotary joint and a nozzle fixing seat, the nozzle can rotate in all directions, making it easy to operate and precise to adjust. Regardless of the site conditions or the attitude of the device itself, the nozzle can be adjusted to meet the direction and spray angle required for operation.

[0061] (3) The device has a simple overall structure, is easy to manufacture, is easy to move, and can be reused.

[0062] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A slope concrete spraying nozzle support device, characterized in that: It includes a base, a support rod, an adjusting rod, and a nozzle fixing seat; the bottom of the base is provided with a moving mechanism; the bottom end of the support rod is hinged to the base; one end of the adjusting rod is hinged to the base, and the other end is slidably connected to the support rod; the nozzle fixing seat is hinged to the top end of the support rod and is used to fix the nozzle of the spray pipe.

2. The slope concrete spraying nozzle support device according to claim 1, characterized in that: The support rod includes a fixed section and a rotating section, with the rotating section rotatably connected to the fixed section; the nozzle mounting base is hinged to the top of the rotating section.

3. The slope concrete spraying nozzle support device according to claim 2, characterized in that: The rotating joint is capable of moving axially along the fixed joint.

4. The slope concrete spray nozzle support device according to claim 3, characterized in that: The fixed section is threadedly connected to a first locating pin, which is used to abut and fix the rotating section.

5. The slope concrete spray nozzle support device according to any one of claims 2-4, characterized in that: An adjusting fixing sleeve is slidably connected to the outside of the fixed section, and the adjusting rod is connected to the opposite ends of the adjusting fixing sleeve.

6. The slope concrete spraying nozzle support device according to claim 5, characterized in that: The adjusting and fixing sleeve is threadedly connected to a second locating pin, which is used to abut against the fixing section.

7. The slope concrete spraying nozzle support device according to any one of claims 2-4 and 6, characterized in that: The nozzle mounting base includes a fixing sleeve, a connecting seat, and a limiting component; the fixing sleeve is disposed at the top of the connecting seat and is used to fix the spray pipe; the connecting seat is hinged to the top of the rotating joint and is used to drive the fixing sleeve to rotate; one end of the limiting component is hinged to the rotating joint and the other end is slidably connected to the bottom end of the fixing sleeve and is used to limit the angle of the fixing sleeve.

8. The slope concrete spraying nozzle support device according to claim 7, characterized in that: The fixing sleeve is a tubular structure with openings at both ends.

9. The slope concrete spray nozzle support device according to claim 8, characterized in that: The limiting assembly includes a telescopic rod, a sliding member, and a third positioning pin; one end of the telescopic rod is hinged to the rotary joint, and the other end is hinged to the sliding member; the sliding member is adapted to the groove at the bottom end of the fixed sleeve and can move along the groove; the third positioning pin is threaded to the sliding member and is used to limit the position of the sliding member in the groove.

Images