Spraying device for color difference treatment of precast concrete segments

By employing a single spray head and a multi-axis moving mechanism in the precast concrete segment spraying device, the problem of uneven spraying was solved, achieving uniformity and thickness consistency in the spraying, and improving the repair effect.

CN223988634UActive Publication Date: 2026-03-13SHENYANG MINGJUN NEW RAIL TRANSIT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-19
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing spraying equipment suffers from problems such as nozzle flow rate differences and uneven spraying speed when spraying precast concrete segments, making it difficult to control color uniformity and thickness, thus affecting the repair effect.

Method used

A single nozzle is used in conjunction with X-axis and Y-axis moving mechanisms and an elastic lifting mechanism to ensure that the nozzle moves along the X-axis and Y-axis, and is raised and lowered on the Z-axis to match the curvature of the tube segment, thereby achieving uniformity and consistency in spraying.

Benefits of technology

The combination of a single nozzle and a multi-axis moving mechanism improves the uniformity and thickness consistency of the sprayed repair agent, thereby enhancing the repair effect of precast concrete segments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a spraying device for color difference treatment of precast concrete segments, which comprises a base plate, a supporting plate is mounted on the upper surface of the base plate, a vertical plate is mounted on the outer surface of the base plate along the length direction of the base plate through an X-axis moving mechanism, a liquid storage tank is mounted on the outer surface of the vertical plate through a Y-axis moving mechanism, and a plunger pump is mounted at the top of the liquid storage tank. The output end of the plunger pump is connected with a spray pipe, and a nozzle is installed at the end of the spray pipe. And an elastic lifting mechanism is arranged between the Y-axis moving mechanism and the vertical plate. The spraying head is driven by the X-axis moving mechanism to horizontally move in the X-axis direction, the spraying head is driven by the Y-axis moving mechanism to reciprocate in the Y-axis direction, and therefore the spraying head can spray a repairing agent to the surface of the whole concrete segment, due to the fact that the single spraying head is adopted, the influence of flow difference or uneven spraying speed can be avoided, and the repairing effect is improved.
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Description

Technical Field

[0001] This utility model relates to the field of precast concrete segment production technology, specifically a spraying device for color difference treatment of precast concrete segments. Background Technology

[0002] Precast concrete segments are concrete components manufactured in a factory. They are made primarily of steel bars and concrete and have advantages such as uniform specifications, controllable quality, convenient construction, high durability, and good compressive strength. They are widely used in urban subways, tunnels, bridges, drainage systems and other engineering fields as lining materials to support underground soil layers and ensure the stability and safety of the structure.

[0003] During the production of precast concrete segments, color differences may occur due to factors such as release agents, gelling materials, steam curing processes, and the mold itself. Therefore, it is necessary to spray color difference repair agents on their surfaces. However, existing spraying equipment often uses multiple nozzles arranged side by side to complete the spraying during horizontal movement. However, factors such as differences in flow rate between nozzles or uneven spraying speed make it difficult to control the spraying thickness and color uniformity, thus affecting the final repair effect. Utility Model Content

[0004] The purpose of this invention is to provide a spraying device for color difference treatment of precast concrete segments, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution.

[0006] A spraying device for color difference treatment of precast concrete segments includes a base plate, a support plate mounted on the upper surface of the base plate, a vertical plate mounted on the outer surface of the base plate along its length via an X-axis moving mechanism, a liquid storage tank mounted on the outer surface of the vertical plate via a Y-axis moving mechanism, a plunger pump mounted on the top of the liquid storage tank, a spray pipe connected to the output end of the plunger pump, and a nozzle mounted on the end of the spray pipe. An elastic lifting mechanism is provided between the Y-axis moving mechanism and the vertical plate.

[0007] Furthermore, the X-axis moving mechanism includes a mounting base A mounted on the outer surface of the substrate, a threaded rod rotatably mounted inside the mounting base A, a drive block A mounted on the outer surface of the threaded rod, and a vertical plate mounted on the upper surface of the drive block A. A servo motor A is mounted on the outer surface of the mounting base A, and the end of the output shaft of the servo motor A is connected to the threaded rod.

[0008] Furthermore, the Y-axis moving mechanism includes a mounting base B disposed on the outside of the vertical plate, a reciprocating screw rotatably mounted inside the mounting base B, a drive block B mounted on the outer surface of the reciprocating screw, and a liquid storage tank mounted on the upper surface of the drive block B. A servo motor B is mounted on the outer surface of the mounting base B, and the end of the output shaft of the servo motor B is connected to the reciprocating screw.

[0009] Furthermore, the elastic lifting mechanism includes two parallel U-shaped slide rods installed on the outer surface of the upright plate. A slide plate is slidably mounted on the outer surface of the two U-shaped slide rods, and the mounting base B is installed on the outer surface of the slide plate. A spring is sleeved on the outer surface of the U-shaped slide rod, and the two ends of the spring abut against the lower surface of the U-shaped slide rod and the slide plate, respectively. A guide rod is connected to the lower surface of the slide plate, and a guide wheel is installed at the end of the guide rod.

[0010] Furthermore, corner blocks are installed at the connection points between the vertical plate and the drive block A on both sides in the width direction.

[0011] Furthermore, the top of the storage tank is equipped with a filling port, and the inside of the filling port is equipped with a sealing cap.

[0012] Furthermore, a rubber pad is provided on the upper surface of the support plate.

[0013] Furthermore, multiple sets of support plates are provided, and these multiple sets of support plates are equidistantly distributed along the length direction of the substrate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0015] 1. This utility model uses an X-axis moving mechanism to drive the nozzle to move horizontally along the X-axis direction and a Y-axis moving mechanism to drive the nozzle to reciprocate along the Y-axis direction. Therefore, the nozzle can spray the repair agent onto the entire surface of the concrete pipe segment. Since a single nozzle is used, the effects of flow rate differences or uneven spraying speed can be avoided, thus improving the repair effect.

[0016] 2. This utility model, through the setting of the elastic lifting mechanism, can drive the nozzle to move up and down on the Z-axis to match the curvature of the concrete pipe segment during the movement of the nozzle along the X-axis, ensuring that the distance between the nozzle and the concrete pipe segment remains constant during the spraying process, thereby making the repair agent sprayed more evenly and with a consistent thickness, and further improving the repair effect. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the X-axis moving mechanism in this utility model;

[0020] Figure 4 This is a schematic diagram of the Y-axis moving mechanism and the elastic lifting mechanism in this utility model.

[0021] In the diagram: 100, base plate; 101, support plate; 102, upright plate; 103, liquid storage tank; 104, plunger pump; 105, nozzle; 106, nozzle; 200, X-axis moving mechanism; 201, mounting base A; 202, threaded rod; 203, drive block A; 204, servo motor A; 300, Y-axis moving mechanism; 301, mounting base B; 302, reciprocating screw; 303, drive block B; 304, servo motor B; 400, elastic lifting mechanism; 401, U-shaped slide bar; 402, slide plate; 403, spring; 404, guide rod; 405, guide wheel; 500, corner block; 600, sealing cover. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to 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 the embodiments of this utility model.

[0024] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0025] Please see Figures 1-4This utility model provides a spraying device for color difference treatment of precast concrete pipe segments, including a base plate 100. A support plate 101 is installed on the upper surface of the base plate 100. A vertical plate 102 is installed on the outer surface of the base plate 100 along its length direction via an X-axis moving mechanism 200. A liquid storage tank 103 is installed on the outer surface of the vertical plate 102 via a Y-axis moving mechanism 300. A plunger pump 104 is installed on the top of the liquid storage tank 103. The output end of the plunger pump 104 is connected to a spray pipe 105, and a spray nozzle 106 is installed at the end of the spray pipe 105. An elastic lifting mechanism 400 is provided between the Y-axis moving mechanism 300 and the vertical plate 102.

[0026] During use, workers use a forklift to place the concrete segment on the support plate 101, start the plunger pump 104 to extract the color difference repair agent from the storage tank 103, and deliver it to the spray nozzle 106 through the spray pipe 105, so that it can be sprayed onto the surface of the concrete segment. During the spraying process, the X-axis moving mechanism 200 drives the spray nozzle 106 to move along the X-axis direction, the Y-axis moving mechanism 300 drives the spray nozzle 106 to move back and forth along the Y-axis direction, and the elastic lifting mechanism 400 drives the spray nozzle 106 to rise and fall on the Z-axis to match the curvature of the concrete segment, thereby ensuring that the distance between the spray nozzle 106 and the concrete segment remains constant during the spraying process, and evenly spraying the repair agent onto the entire surface of the concrete segment, thereby improving the repair effect.

[0027] Preferably, the X-axis moving mechanism 200 includes a mounting base A201 mounted on the outer surface of the substrate 100, a threaded rod 202 rotatably mounted inside the mounting base A201, a drive block A203 mounted on the outer surface of the threaded rod 202, and a vertical plate 102 mounted on the upper surface of the drive block A203. A servo motor A204 is mounted on the outer surface of the mounting base A201, and the end of the output shaft of the servo motor A204 is connected to the threaded rod 202.

[0028] When the servo motor A204 is started, its output shaft drives the threaded rod 202 to rotate. Since the inner wall of the mounting base A201 limits the drive block A203, the drive block A203 can be driven to move along the length of the threaded rod 202 under the drive of the threaded connection, and the nozzle 106 can be driven to move along the X-axis.

[0029] Preferably, the Y-axis moving mechanism 300 includes a mounting base B301 disposed on the outside of the vertical plate 102, a reciprocating screw 302 rotatably mounted inside the mounting base B301, a drive block B303 mounted on the outer surface of the reciprocating screw 302, and a liquid storage tank 103 mounted on the upper surface of the drive block B303. A servo motor B304 is mounted on the outer surface of the mounting base B301, and the end of the output shaft of the servo motor B304 is connected to the reciprocating screw 302.

[0030] When the servo motor B304 is started, its output shaft drives the reciprocating screw 302 to rotate. Since the inner wall of the mounting base B301 limits the drive block B303, the drive block B303 can be driven to move along the length direction of the reciprocating screw 302 under the drive of the threaded connection, and drive the nozzle 106 to reciprocate along the Y axis.

[0031] Preferably, the elastic lifting mechanism 400 includes two parallel U-shaped slide rods 401 mounted on the outer surface of the upright plate 102. The outer surfaces of the two U-shaped slide rods 401 are slidably mounted on a slide plate 402, and the mounting base B301 is mounted on the outer surface of the slide plate 402. A spring 403 is sleeved on the outer surface of the U-shaped slide rods 401. The two ends of the spring 403 abut against the lower surfaces of the U-shaped slide rods 401 and the slide plate 402, respectively. A guide rod 404 is connected to the lower surface of the slide plate 402, and a guide wheel 405 is mounted on the end of the guide rod 404.

[0032] The spring 403 applies an upward thrust to the slide plate 402, thereby supporting the Y-axis moving mechanism 300 and the nozzle 106. When the X-axis moving mechanism 200 moves the vertical plate 102, the guide wheel 405 contacts the bottom of the concrete segment and rolls along the bottom of the concrete segment. During the rolling of the guide wheel 405, its height changes with the curvature of the concrete segment. The guide rod 404 pulls the slide plate 402 to change its height, thereby achieving the purpose of driving the nozzle 106 to rise and fall on the Z-axis in accordance with the curvature of the concrete segment.

[0033] Preferably, corner blocks 500 are installed at the connection points between the two sides of the vertical plate 102 and the drive block A203 in the width direction.

[0034] By setting corner blocks 500, the firmness of the connection between the upright plate 102 and the drive block A203 can be increased, thereby improving the structural strength.

[0035] Preferably, the top of the liquid storage tank 103 is provided with a filling port, and the inside of the filling port is provided with a sealing cap 600.

[0036] Repair agent can be added into the storage tank 103 through the filling port. After filling, the sealing cap 600 should be put on to prevent evaporation and external contamination.

[0037] Preferably, a rubber pad is provided on the upper surface of the support plate 101.

[0038] The rubber pads provide cushioning and protection when the forklift places the concrete segments on the support plate 101, preventing external damage.

[0039] Preferably, multiple sets of support plates 101 are provided, and the multiple sets of support plates 101 are equidistantly distributed along the length direction of the substrate 100.

[0040] By setting up multiple sets of support plates 101, other concrete segments that have been sprayed can be placed and picked up during the spraying process of the nozzle 106, thereby avoiding interruption of the spraying operation, ensuring continuity, and improving spraying efficiency.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A prefabricated concrete segment color difference treatment spraying device, comprising a base plate (100), characterized in that: the upper surface of the base plate (100) is provided with a support plate (101), the outer surface of the base plate (100) is provided with a vertical plate (102) through an X-axis moving mechanism (200) along the length direction, the outer surface of the vertical plate (102) is provided with a liquid storage tank (103) through a Y-axis moving mechanism (300), the top of the liquid storage tank (103) is provided with a plunger pump (104), the output end of the plunger pump (104) is connected with a spray pipe (105), and the end of the spray pipe (105) is provided with a spray head (106). An elastic lifting mechanism (400) is arranged between the Y-axis moving mechanism (300) and the vertical plate (102).

2. The prefabricated concrete segment color difference treatment spraying device according to claim 1, characterized in that: the X-axis moving mechanism (200) comprises a mounting seat A (201) mounted on the outer surface of the base plate (100), a threaded rod (202) rotatably mounted in the mounting seat A (201), a driving block A (203) mounted on the outer surface of the threaded rod (202), wherein the vertical plate (102) is mounted on the upper surface of the driving block A (203), a servo motor A (204) mounted on the outer surface of the mounting seat A (201), and the end of the output shaft of the servo motor A (204) is connected with the threaded rod (202).

3. The prefabricated concrete segment color difference treatment spraying device according to claim 1, characterized in that: the Y-axis moving mechanism (300) comprises a mounting seat B (301) arranged outside the vertical plate (102), a reciprocating screw (302) rotatably mounted in the mounting seat B (301), a driving block B (303) mounted on the outer surface of the reciprocating screw (302), wherein the liquid storage tank (103) is mounted on the upper surface of the driving block B (303), a servo motor B (304) mounted on the outer surface of the mounting seat B (301), and the end of the output shaft of the servo motor B (304) is connected with the reciprocating screw (302).

4. The prefabricated concrete segment color difference treatment spraying device according to claim 3, characterized in that: the elastic lifting mechanism (400) comprises two mutually parallel U-shaped slide rods (401) mounted on the outer surface of the vertical plate (102), a sliding plate (402) slidably mounted on the outer surfaces of the two U-shaped slide rods (401), wherein the mounting seat B (301) is mounted on the outer surface of the sliding plate (402), springs (403) sleeved on the outer surfaces of the U-shaped slide rods (401), the two ends of the springs (403) respectively abutting against the U-shaped slide rods (401) and the lower surface of the sliding plate (402), a guide rod (404) connected with the lower surface of the sliding plate (402), and a guide wheel (405) mounted on the end of the guide rod (404). ​ ​ ​ ​ 5. The precast concrete segment color difference treatment spraying device according to claim 2, characterized in that: Both sides of the vertical plate (102) in the width direction are connected with the driving block A (203), and an angle block (500) is installed at the connection.

6. The precast concrete segment color difference treatment spraying device according to claim 1, characterized in that: A filling opening is arranged at the top of the liquid storage tank (103), and a sealing cover (600) is arranged inside the filling opening.

7. The precast concrete segment color difference treatment spraying device according to claim 1, characterized in that: A rubber pad is arranged on the upper surface of the support plate (101).

8. The precast concrete segment color difference treatment spraying device according to claim 1, characterized in that: A plurality of support plates (101) are arranged, and the plurality of support plates (101) are equidistantly distributed along the length direction of the base plate (100).