A fixing device for cement pipeline spraying

By combining the design of the frame, sleeve and limiting post, the problem of the traditional cement pipe fixing device being inconvenient to rotate and adjust is solved, achieving stable rotation and efficient spraying, and avoiding surface wear.

CN224389046UActive Publication Date: 2026-06-23GANSU CIVIL ENG SCI RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GANSU CIVIL ENG SCI RES INST
Filing Date
2025-05-30
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Traditional cement pipe fixing devices are not easy to rotate and adjust, which affects the spraying efficiency and easily leads to surface wear.

Method used

The fixing device, which includes a frame, sleeve, limit post and drive unit, is used to achieve stable rotation and rapid fixing of cement pipes by means of motor-driven sprocket transmission and hydraulic cylinder adjustment of the limit post.

Benefits of technology

It enables stable rotation adjustment of cement pipes, improves spraying quality, avoids surface wear, and enhances the protective effect of fixing devices.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cement pipeline spraying fixing device belongs to cement pipeline processing field. A cement pipeline spraying fixing device, including at least one frame, still include: bushing, rotation is connected in the frame, one end of bushing is through frame and is fixedly connected with support seat, and the drive portion is equipped in the frame, at least three groups of limit posts of sliding connection in the support seat are equipped with the adjusting spare in the support seat, the utility model discloses through adjusting spare drive six groups of limit post to move simultaneously, can fastly support and fix the inner wall of cement pipeline, and, utilize drive portion to drive bushing and support seat rotation, can to cement pipeline rotation adjustment, thereby improve the spraying quality of cement pipeline outer surface.
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Description

Technical Field

[0001] This utility model relates to the field of cement pipe processing technology, and in particular to a fixing device for cement pipe spraying. Background Technology

[0002] Cement pipes, also known as cement pressure pipes or reinforced concrete pipes, can be used as underground water pipes in urban construction, for sewage discharge, flood control and drainage, as well as water supply pipes in some special factories and mines and farmland wells. They are generally divided into: plain-end reinforced concrete cement pipes, flexible tongue and groove reinforced concrete cement pipes, socket reinforced concrete cement pipes, F-type steel socket cement pipes, plain-end collar joint cement pipes, and tongue and groove cement pipes, etc.

[0003] Cement pipes are often buried underground or exposed to humid environments for long periods of time, making them susceptible to damage from soil acidity and alkalinity, groundwater, and microbial erosion. Therefore, it is necessary to spray anti-corrosion coatings on their surfaces. Before spraying, the cement pipes must first be fixed to ensure their stability during the spraying process. The traditional method of fixing is usually to use V-shaped channel steel brackets to support and fix the cement pipes.

[0004] However, while V-shaped steel supports can fix cement pipes, they are not convenient for rotating and adjusting the cement pipes. This makes it impossible for anti-corrosion coatings to be sprayed evenly on the outer surface of the cement pipes. Secondly, the way V-shaped steel supports are fixed can easily cause friction damage to the surface of the cement pipes, thereby reducing their service life. Utility Model Content

[0005] The purpose of this invention is to solve the problem that in the prior art, the fixing device for cement pipes is not convenient for rotation and adjustment, which affects the spraying efficiency and also causes wear on the surface of the cement pipes. Therefore, this invention proposes a fixing device for cement pipe spraying.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A fixing device for spraying cement pipes includes at least one frame and further includes: a sleeve rotatably connected to the frame, one end of the sleeve passing through the frame and fixedly connected to a support base, wherein the frame is provided with a drive unit; and at least three sets of limiting posts slidably connected to the support base, wherein the support base is provided with an adjusting component.

[0008] In order to drive the cement pipe to rotate and adjust, preferably, the driving unit includes a motor fixedly installed in the frame, the output end of the motor is fixedly connected to a first sprocket, a second sprocket is drivenly connected to the first sprocket, and the second sprocket is fixedly sleeved on the sleeve.

[0009] To improve the stability of the cement pipe rotation, a chain is further engaged on the first and second sprockets.

[0010] For quick fixation of cement pipes, preferably, the adjusting component includes a hydraulic cylinder fixedly mounted on a support base, with one end of the hydraulic cylinder away from the limiting plate extending into the inner cavity of the sleeve, and the output end of the hydraulic cylinder fixedly connected to the limiting plate, wherein a connecting rod is rotatably connected to the limiting plate, and one end of the connecting rod away from the limiting plate is rotatably connected to a limiting post.

[0011] To further protect the inner wall of the cement pipe, a protective pad is fixedly connected to the end of the limiting post away from the connecting rod.

[0012] To further enhance the anti-slip effect while providing protection, the protective pad is made of rubber.

[0013] In order to guide and limit the positioning post, preferably, a limiting sleeve is fixedly connected inside the support base, and the positioning post is slidably connected inside the limiting sleeve.

[0014] To limit the movement of the sleeve and improve its rotational stability, preferably, a bearing is fixedly fitted onto the sleeve, and the outer ring of the bearing is fixedly connected to the inner wall of the frame.

[0015] Compared with the prior art, the present invention provides a fixing device for cement pipe spraying, which has the following beneficial effects:

[0016] 1. The fixing device for spraying cement pipes uses a smaller first sprocket to drive a larger second sprocket, which ensures the stability of the rotation adjustment of the cement pipes.

[0017] 2. The fixing device for spraying cement pipes uses a rubber protective pad to prevent wear at the connection between the limiting post and the inner wall of the cement pipe, thereby improving the protective effect of the fixing device.

[0018] The parts not mentioned in this device are the same as or can be implemented using existing technology. This utility model drives six sets of limiting columns to move simultaneously through the adjusting component, which can quickly support and fix the inner wall of the cement pipe. Furthermore, by using the driving part to drive the sleeve and support seat to rotate, the rotation adjustment of the cement pipe can be achieved, thereby improving the spraying quality of the outer surface of the cement pipe. Attached Figure Description

[0019] Figure 1 This is an isometric view of the structure of a fixing device for spraying cement pipes proposed in this utility model;

[0020] Figure 2 This is an isometric schematic diagram of the support base structure of a fixing device for cement pipe spraying proposed in this utility model;

[0021] Figure 3 This is a cross-sectional schematic diagram of the frame structure of a fixing device for cement pipe spraying proposed in this utility model;

[0022] Figure 4 This is an isometric schematic diagram of the adjusting component structure of a fixing device for cement pipe spraying proposed in this utility model;

[0023] Figure 5 This is a schematic diagram of the drive unit structure of a fixing device for spraying cement pipes proposed in this utility model.

[0024] In the diagram: 1. Frame; 2. Sleeve; 3. Support base; 4. Motor; 41. First sprocket; 42. Second sprocket; 5. Limiting post; 6. Hydraulic cylinder; 61. Limiting plate; 62. Connecting rod; 7. Limiting sleeve; 8. Bearing; 9. Protective pad. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Example:

[0028] Reference Figures 1-5A fixing device for spraying cement pipes includes at least one frame 1, with one to two frames 1, preferably two. It also includes: a sleeve 2 rotatably connected to the frame 1, with a bearing 8 fixedly fitted on the sleeve 2. The outer ring of the bearing 8 is fixedly connected to the inner wall of the frame 1 for limiting the rotation of the sleeve 2. One end of the sleeve 2 passes through the frame 1 and is fixedly connected to a support base 3. The frame 1 has a drive unit; when the drive unit is in operation, the support base 3 is used to adjust the rotation of the cement pipe. At least three sets of limiting posts 5 are slidably connected within the support base 3, with three to six sets of limiting posts 5, preferably six sets. Six sets of limiting posts 5 can simultaneously fix multiple points on the inner wall of the cement pipe, thereby improving its fixing stability. A limiting sleeve 7 is fixedly connected within the support base 3, with the limiting posts 5 slidably connected within the limiting sleeve 7 for limiting the position of the limiting posts 5. The support base 3 has an adjusting component; when the adjusting component is in operation, the limiting posts 5 tend to move away from the center of the support base 3.

[0029] Specifically, by driving the six sets of limiting columns 5 to move simultaneously through the adjusting component, the inner wall of the cement pipe can be quickly supported and fixed. Furthermore, by using the driving part to drive the sleeve 2 and the support seat 3 to rotate, the rotation of the cement pipe can be adjusted, thereby improving the coating quality of the outer surface of the cement pipe.

[0030] The drive unit includes a motor 4 fixedly installed in the frame 1. The output end of the motor 4 is fixedly connected to a first sprocket 41. A second sprocket 42 is connected to the first sprocket 41 via chain drive. The second sprocket 42 is fixedly sleeved on the sleeve 2.

[0031] Specifically, the drive unit enables the rotation adjustment of the cement pipe. Meanwhile, the first sprocket 41 is smaller in size and the second sprocket 42 is larger in size. When the smaller first sprocket 41 drives the larger second sprocket 42 to rotate, the second sprocket 42 rotates at a relatively slower speed, thereby ensuring the stability of the rotation adjustment of the cement pipe.

[0032] The adjusting component includes a hydraulic cylinder 6 fixedly mounted on the support base 3. The hydraulic cylinder 6 is an HSG125 / 90E mid-axis swing cylinder. The end of the hydraulic cylinder 6 away from the limiting plate 61 extends into the inner cavity of the sleeve 2. The output end of the hydraulic cylinder 6 is fixedly connected to the limiting plate 61. A connecting rod 62 is rotatably connected to the limiting plate 61. The end of the connecting rod 62 away from the limiting plate 61 is rotatably connected to the limiting post 5. A rubber protective pad 9 is fixedly connected to the end of the limiting post 5 away from the connecting rod 62. The protective pad 9 is used to prevent wear at the connection between the limiting post 5 and the inner wall of the cement pipe.

[0033] Specifically, by adjusting the settings, when the output end of the hydraulic cylinder 6 drives the limit plate 61 to move, the other end of the connecting rod 62 pushes the limit post 5 to move towards the inner wall of the cement pipe, thereby achieving rapid fixation of the cement pipe.

[0034] Working principle: When fixing cement pipes, the cement pipes are first lifted by external hoisting equipment. After the cement pipes are moved to the designated height, the staff moves the frame 1 to the designated position and makes the cement pipes and the support base 3 at the same level. Then, the hydraulic cylinder 6 is started by an external control switch. When the output end of the hydraulic cylinder 6 drives the limit plate 61 to move, the limit plate 61 drives one end of the connecting rod 62 to move. At this time, the other end of the connecting rod 62 drives the limit post 5 to slide in the inner cavity of the limit sleeve 7. When the protective pad 9 at one end of the limit post 5 contacts the cement pipe, it can be supported and fixed.

[0035] After both ends of the cement pipe are fixed, the workers start the motor 4 using an external control switch. When the output end of the motor 4 rotates, it drives the first sprocket 41 to rotate. When the first sprocket 41 rotates, it drives the chain to drive the transmission. When the chain drives the transmission, it drives the second sprocket 42 to rotate. When the second sprocket 42 rotates, it drives the sleeve 2 to rotate. When the sleeve 2 rotates, it drives the support 3 to rotate. When the support 3 rotates, it drives the limit post 5 to rotate. This allows the rotation of the cement pipe to be adjusted. By adjusting the angle of the cement pipe, the anti-corrosion coating can be evenly sprayed on the outer surface of the cement pipe. Furthermore, by using the smaller first sprocket 41 to drive the larger second sprocket 42, the rotation speed of the cement pipe is relatively slow, thus ensuring the spraying quality of the anti-corrosion coating.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fixing device for spraying cement pipes, comprising at least one frame (1), characterized in that, Also includes: A sleeve (2) is rotatably connected to the frame (1), and one end of the sleeve (2) passes through the frame (1) and is fixedly connected to a support base (3). The frame (1) is equipped with a drive unit; At least three sets of limiting posts (5) are slidably connected within the support base (3). The support base (3) is equipped with an adjustment component.

2. The fixing device for spraying cement pipes according to claim 1, characterized in that, The drive unit includes a motor (4) fixedly installed in the frame (1). The output end of the motor (4) is fixedly connected to a first sprocket (41). A second sprocket (42) is drivenly connected to the first sprocket (41). The second sprocket (42) is fixedly sleeved on the sleeve (2).

3. A fixing device for spraying cement pipes according to claim 2, characterized in that, A chain is engaged with the first sprocket (41) and the second sprocket (42).

4. A fixing device for spraying cement pipes according to claim 1, characterized in that, The adjusting component includes a hydraulic cylinder (6) fixedly mounted on the support base (3). One end of the hydraulic cylinder (6) away from the limiting plate (61) extends into the inner cavity of the sleeve (2). The output end of the hydraulic cylinder (6) is fixedly connected to the limiting plate (61). The limiting disk (61) is rotatably connected to a connecting rod (62), and the end of the connecting rod (62) away from the limiting disk (61) is rotatably connected to the limiting post (5).

5. A fixing device for spraying cement pipes according to claim 4, characterized in that, The end of the limiting post (5) away from the connecting rod (62) is fixedly connected to a protective pad (9).

6. A fixing device for spraying cement pipes according to claim 5, characterized in that, The protective pad (9) is made of rubber.

7. A fixing device for spraying cement pipes according to claim 1, characterized in that, The support base (3) is fixedly connected to the limiting sleeve (7), and the limiting post (5) is slidably connected inside the limiting sleeve (7).

8. A fixing device for spraying cement pipes according to claim 1, characterized in that, A bearing (8) is fixedly sleeved on the sleeve (2), and the outer ring of the bearing (8) is fixedly connected to the inner wall of the frame (1).