A grey line spreading device for municipal works

By designing an automated ash line spraying device, the problems of large size, complex structure, and high cost of ash line spraying equipment in municipal engineering have been solved. It achieves convenient and stable ash line spraying and reduces the intensity of manual labor, making it suitable for widespread application.

CN224338647UActive Publication Date: 2026-06-09LIAONING ZHONGJIA CONSTR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIAONING ZHONGJIA CONSTR CO LTD
Filing Date
2025-07-15
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing municipal engineering ash line spraying equipment is large in size, complex in structure, and expensive. Manual operation is labor-intensive and not stable enough, making it difficult to promote widely.

Method used

A ash spraying device was designed, which includes components such as a base, ash spraying mechanism, ash discharge pipe, connecting pipe, and ash hopper. Through the cooperation of rotating rod and cam, it realizes automated ash spraying, reduces manual labor intensity, and can be disassembled to reduce storage height.

Benefits of technology

It achieves convenient and stable gray line spraying, reduces manual labor intensity and equipment costs, and is suitable for widespread application.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224338647U_ABST
Patent Text Reader

Abstract

This utility model discloses a ash spraying device for municipal engineering, including a base and a ash spraying mechanism. The ash spraying mechanism is installed on the top of the base. The ash spraying mechanism includes an ash discharge pipe, a connecting pipe, a fixing plate, a spring, a bottom ring, a connecting rod, a horizontal pipe, a rotating rod, a cam, an ash hopper, a discharge pipe, a piston, and an insert rod. The bottom of the ash discharge pipe passes through the base, and the top of the ash discharge pipe is welded to the connecting pipe. During the pushing process, the rotating rod continuously rotates, driving the cam to rotate. When the cam's protruding part contacts the bottom of the bottom ring, it pushes the bottom ring, compressing the spring. The insert rod drives the piston to move upward, so that the ash material enters the connecting pipe from the discharge pipe and is discharged from the bottom of the ash discharge pipe. This eliminates the need for manual bending, reducing labor intensity. Furthermore, because the piston is in a constantly pushing state, it can avoid the problem of ash material clumping and affecting the discharge. The overall structure of the device is simple, the cost is low, and it is suitable for widespread application.
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Description

Technical Field

[0001] This utility model relates to the technical field of engineering construction tools, and in particular to a ash line spraying device for municipal engineering. Background Technology

[0002] During the construction of municipal engineering and other projects, it is necessary to use mortar to mark the dimensions on the drawings at the designated locations. For example, in the construction of common projects such as pipeline pre-embedded trenches and roadbed foundation edges, it is necessary to carry out line marking and mortar marking to determine the boundaries and facilitate mechanical construction.

[0003] The existing ash line spraying process for engineering projects has the following drawbacks: The conventional approach is to first measure and determine the line location based on the measurement results, and then workers use shovels or ash trucks to spray lime along the line. Manual operation requires constant bending over, which is labor-intensive, and the ash spraying process is not stable. Existing ash spraying equipment is large in size, complex in structure, and expensive, and has not been widely promoted and used. Therefore, we propose an ash line spraying device for municipal engineering projects. Utility Model Content

[0004] The main purpose of this utility model is to provide a ash line spraying device for municipal engineering. Through the ash spraying mechanism set on the top of the base, the ash line can be sprayed conveniently and stably, reducing manual labor and improving construction convenience. At the same time, it is low in cost and suitable for widespread application, which can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A ash spraying device for municipal engineering includes a base and an ash spraying mechanism. The ash spraying mechanism is located on the top of the base and includes an ash discharge pipe, a connecting pipe, a fixing plate, a spring, a bottom ring, a connecting rod, a horizontal pipe, a rotating rod, a cam, an ash hopper, a discharge pipe, a piston, and an insert rod. The bottom of the ash discharge pipe passes through the base and the top of the ash discharge pipe is welded to the connecting pipe. The inner wall of the connecting pipe is welded to the side of the connecting pipe, and the bottom of the fixing plate is movably connected to the bottom ring by a spring. The top of the bottom ring is welded to the connecting plate and passes through the fixing plate. The side of the connecting pipe is welded to the horizontal pipe, and the inside of the horizontal pipe is movably connected to the rotating rod by a bearing. The end of the rotating rod is equipped with a cam located at the bottom of the bottom ring. The bottom of the ash hopper is welded to the discharge pipe, which connects to the connecting pipe. The ash hopper is inserted into the ash hopper, and the bottom of the piston is fixedly connected to the insert rod.

[0007] Furthermore, it also includes a docking mechanism. A docking mechanism is provided between the connecting pipe and the discharge pipe. The docking mechanism includes an inner threaded groove, an outer threaded groove, a threaded sleeve, and a threaded groove. The inner threaded groove is opened at the top of the inner wall of the connecting pipe, and the outer threaded groove is opened at the bottom of the outer wall of the discharge pipe. The top of the connecting rod is welded with a threaded sleeve, and the bottom of the outer wall of the insert rod is opened with a threaded groove that matches the threaded sleeve. During assembly and use, first align the discharge pipe at the bottom of the ash hopper with the top of the connecting pipe, and at the same time align the inner threaded groove with the outer threaded groove and screw it in to achieve docking between the discharge pipe and the connecting pipe. Then, turn the piston to drive the rotation of the insert rod, so that its bottom is screwed into the threaded sleeve at the top of the connecting rod through the threaded groove, connecting the connecting rod and the insert rod together, thus completing the assembly of the device. When not in use, the ash hopper and the discharge pipe can be removed and installed on the other side of the top of the base to reduce the height of the device and facilitate storage.

[0008] Furthermore, a corrugated rubber sleeve is bonded between the bottom of the fixing plate and the top of the bottom ring, and the spring is located inside the corrugated rubber sleeve; the corrugated rubber sleeve serves as a shield, does not affect the extension and contraction of the spring, and prevents dust from entering the spring.

[0009] Furthermore, a rotating ring is welded to one end of the rotating rod outside the connecting pipe, and a movable wheel is installed at the bottom of the base; the rotating ring structure facilitates the rotation of the rotating rod, while the movable wheel facilitates the movement of the base.

[0010] Furthermore, a crossbar is welded to the top of the piston, located inside the ash hopper; when the piston is pushed, the crossbar at the top moves synchronously, which can prevent the ash material inside the ash hopper from condensing.

[0011] Furthermore, a threaded hole is provided on one side of the top of the base, and the threaded hole matches the external threaded groove; when not in use, the ash hopper and discharge pipe can be disassembled and connected to the threaded hole on the top of the base to reduce the overall height of the device and facilitate storage.

[0012] Compared with the prior art, this utility model has the following advantages: A connecting pipe is installed on the top of the base through the ash discharge pipe. The ash hopper is used to store ash. When the ash line is sprayed, the discharge pipe is connected to the connecting pipe, and the insert rod is connected to the connecting rod. At the same time, ash is loaded into the ash hopper. In the normal non-working state, the piston is in the closed state, blocking the bottom of the ash hopper. The base is moved to the positioning line, and then the base and the ash discharge pipe are pushed along the positioning line. During the pushing process, the rotating rod is continuously rotated to drive the cam to rotate. When the cam protrusion contacts the bottom of the bottom ring, it will push the bottom ring, the spring is compressed, and the insert rod drives the piston to move upward, so that the ash enters the connecting pipe from the discharge pipe and is discharged from the bottom of the ash discharge pipe. The ash discharge volume can be adjusted by controlling the rotation speed of the rotating rod. Compared to existing ash discharge methods, this new device eliminates the need for manual bending, reducing labor intensity. Furthermore, the continuous pushing action of the piston prevents ash caking from affecting discharge. The device has a simple overall structure, low cost, and is suitable for widespread application. During assembly, first align the discharge pipe at the bottom of the ash hopper with the top of the connecting pipe, and simultaneously align the inner thread groove with the outer thread groove to screw them in, thus connecting the discharge pipe and the connecting pipe. Then, rotate the piston to rotate the insert rod, causing its bottom to be screwed into the threaded sleeve at the top of the connecting rod through the threaded groove, connecting the connecting rod and the insert rod together. This completes the assembly of the device. When not in use, the ash hopper and discharge pipe can be removed and installed on the other side of the base, reducing the device height and facilitating storage. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a ash line spraying device for municipal engineering according to this utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of the connecting pipe of a ash line spraying device for municipal engineering according to this utility model.

[0015] Figure 3 This is a schematic diagram of the internal structure of the ash hopper and discharge pipe of an ash line spraying device for municipal engineering according to this utility model.

[0016] Figure 4 This is a schematic diagram of the structure of the ash hopper and discharge pipe of the ash line spraying device for municipal engineering in the stored state.

[0017] In the diagram: 1. Base; 2. Ash spraying mechanism; 201. Ash discharge pipe; 202. Connecting pipe; 203. Fixing plate; 204. Spring; 205. Bottom ring; 206. Connecting rod; 207. Corrugated rubber sleeve; 208. Horizontal pipe; 209. Rotating rod; 210. Cam; 211. Rotating ring; 212. Ash hopper; 213. Discharge pipe; 214. Piston; 215. Insert rod; 216. Crossbar; 217. Moving wheel; 3. Connecting mechanism; 301. Inner thread groove; 302. Outer thread groove; 303. Thread sleeve; 304. Threaded groove; 305. Threaded hole. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figure 1-4 As shown, a ash spraying device for municipal engineering includes a base 1 and an ash spraying mechanism 2. The ash spraying mechanism 2 is mounted on the top of the base 1. The ash spraying mechanism 2 includes an ash discharge pipe 201, a connecting pipe 202, a fixing plate 203, a spring 204, a bottom ring 205, a connecting rod 206, a horizontal pipe 208, a rotating rod 209, a cam 210, an ash hopper 212, a discharge pipe 213, a piston 214, and an insert rod 215. The bottom of the ash discharge pipe 201 penetrates the base 1, and the top of the ash discharge pipe 201 is welded to the connecting pipe 202. A fixing plate is welded to the inner wall side of the connecting pipe 202. 203 and the bottom of the fixed plate 203 is movably connected to the bottom ring 205 by the spring 204. The top of the bottom ring 205 is welded with a connecting rod 206 that penetrates the fixed plate 203. The side of the connecting pipe 202 is welded with a horizontal pipe 208, and the inside of the horizontal pipe 208 is movably connected to a rotating rod 209 by a bearing. The end of the rotating rod 209 is equipped with a cam 210 located at the bottom of the bottom ring 205. The bottom of the ash hopper 212 is welded with a discharge pipe 213 that docks with the connecting pipe 202. A piston 214 is inserted into the inside of the ash hopper 212, and the bottom of the piston 214 is fixedly connected with an insertion rod 215.

[0020] The system also includes a docking mechanism 3, which is provided between the connecting pipe 202 and the discharge pipe 213. The docking mechanism 3 includes an inner threaded groove 301, an outer threaded groove 302, a threaded sleeve 303, and a threaded groove 304. The inner threaded groove 301 is provided on the top of the inner wall of the connecting pipe 202, and the outer threaded groove 302 is provided on the bottom of the outer wall of the discharge pipe 213. The top of the connecting rod 206 is welded with a threaded sleeve 303, and the bottom of the outer wall of the insert rod 215 is provided with a threaded groove 304 that matches the threaded sleeve 303. During assembly and use, the bottom of the ash hopper 212 is first... The discharge pipe 213 is aligned with the top of the connecting pipe 202, and the inner thread groove 301 is aligned with the outer thread groove 302 and screwed in to achieve the docking between the discharge pipe 213 and the connecting pipe 202. Then, the piston 214 is turned to drive the rotation of the insertion rod 215, so that its bottom is screwed into the threaded sleeve 303 at the top of the connecting rod 206 through the threaded groove 304, connecting the connecting rod 206 and the insertion rod 215 together, thus completing the assembly of the device. When not in use, the ash hopper 212 and the discharge pipe 213 can be removed and installed on the other side of the top of the base 1 to reduce the height of the device and facilitate storage.

[0021] A corrugated rubber sleeve 207 is bonded between the bottom of the fixing plate 203 and the top of the bottom ring 205, and the spring 204 is located inside the corrugated rubber sleeve 207. The corrugated rubber sleeve 207 serves as a shield, does not affect the extension and contraction of the spring 204, and prevents dust from entering the interior of the spring 204.

[0022] The rotating rod 209 has a rotating ring 211 welded to one end outside the connecting pipe 202. The base 1 has a movable wheel 217 installed at its bottom. The piston 214 has a crossbar 216 welded to its top, located inside the ash hopper 212. The rotating ring 211 facilitates the rotation of the rotating rod 209, while the movable wheel 217 facilitates the movement of the base 1. When the piston 214 is pushed, its top crossbar 216 is pushed simultaneously, which can prevent the ash material inside the ash hopper 212 from condensing.

[0023] The base 1 has a threaded hole 305 on one side of its top, which matches the external threaded groove 302. When not in use, the ash hopper 212 and the discharge pipe 213 are disassembled and connected to the threaded hole 305 on the top of the base 1 to reduce the overall height of the device and facilitate storage.

[0024] It should be noted that this utility model is a ash line spraying device for municipal engineering. In use, a connecting pipe 202 is installed on the top of the base 1 via an ash discharge pipe 201. The ash hopper 212 is used to store ash. During ash line spraying, the discharge pipe 213 is connected to the connecting pipe 202, and the insert rod 215 is connected to the connecting rod 206. Simultaneously, ash is loaded into the ash hopper 212. In the normal non-working state, the piston 214 is in a closed state, blocking the bottom of the ash hopper 212. The base 1 is moved to the positioning line, and then the base 1 and the ash discharge pipe 201 are pushed along the positioning line. During the pushing process, the rotating rod 209 is continuously rotated, driving the cam 210 to rotate. When the protruding part of the cam 210 contacts the bottom of the bottom ring 205, it pushes the bottom ring 205, compressing the spring 204. The insert rod 215 drives the piston 214 upward, causing the ash to enter the connecting pipe 202 from the discharge pipe 213 and then be discharged from the bottom of the ash discharge pipe 201. This is achieved by controlling... The rotation speed of the rotating rod 209 can adjust the ash discharge volume. Compared with the existing ash discharge method, it eliminates the need for manual bending, reducing labor intensity. Furthermore, since the piston 214 is in a continuous pushing state, it can avoid the problem of ash clumping affecting the discharge. The overall structure of the device is simple and the cost is low, making it suitable for widespread application. During assembly, first align the discharge pipe 213 at the bottom of the ash hopper 212 with the top of the connecting pipe 202, and simultaneously align the inner thread groove 301 with the outer thread groove 302 to screw in and connect the discharge pipe 213 and the connecting pipe 202. Then, rotate the piston 214 to drive the rotation of the insert rod 215, so that its bottom is screwed into the threaded sleeve 303 at the top of the connecting rod 206 through the threaded groove 304, connecting the connecting rod 206 and the insert rod 215 together. This completes the assembly of the device. When not in use, the ash hopper 212 and the discharge pipe 213 can be removed and installed on the other side of the top of the base 1 to reduce the height of the device and facilitate storage.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A ash line spraying device for municipal engineering, comprising a base (1), characterized in that, It also includes a dust-spraying mechanism (2), which is provided on the top of the base (1). The dust-spraying mechanism (2) includes a dust discharge pipe (201), a connecting pipe (202), a fixing plate (203), a spring (204), a bottom ring (205), a connecting rod (206), a horizontal pipe (208), a rotating rod (209), a cam (210), a dust hopper (212), a discharge pipe (213), a piston (214), and an insert rod (215). The bottom of the dust discharge pipe (201) penetrates the base (1), and the top of the dust discharge pipe (201) is welded with a connecting pipe (202). The inner wall of the connecting pipe (202) is welded with a fixing plate (203), and the fixing plate (204) is also provided with a connecting plate (205). 203) A bottom ring (205) is movably connected to the bottom by a spring (204). A connecting rod (206) that penetrates the fixed plate (203) is welded to the top of the bottom ring (205). A horizontal tube (208) is welded to the side of the connecting pipe (202), and a rotating rod (209) is movably connected to the inside of the horizontal tube (208) through a bearing. A cam (210) located at the bottom of the bottom ring (205) is installed at the end of the rotating rod (209). A discharge pipe (213) that connects to the connecting pipe (202) is welded to the bottom of the ash hopper (212). A piston (214) is inserted inside the ash hopper (212), and an insert rod (215) is fixedly connected to the bottom of the piston (214).

2. The ash line spraying device for municipal engineering according to claim 1, characterized in that: It also includes a docking mechanism (3), which is provided between the connecting pipe (202) and the discharge pipe (213). The docking mechanism (3) includes an inner thread groove (301), an outer thread groove (302), a thread sleeve (303), and a threaded groove (304). The inner thread groove (301) is provided at the top of the inner wall of the connecting pipe (202), and the outer thread groove (302) is provided at the bottom of the outer wall of the discharge pipe (213). The thread sleeve (303) is welded to the top of the connecting rod (206), and the threaded groove (304) matching the thread sleeve (303) is provided at the bottom of the outer wall of the insert rod (215).

3. The ash line spraying device for municipal engineering according to claim 1, characterized in that: A corrugated rubber sleeve (207) is bonded between the bottom of the fixing plate (203) and the top of the bottom ring (205), and the spring (204) is located inside the corrugated rubber sleeve (207).

4. The ash line spraying device for municipal engineering according to claim 1, characterized in that: The rotating rod (209) has a rotating ring (211) welded to one end outside the connecting pipe (202), and the base (1) has a moving wheel (217) installed at the bottom.

5. A ash line spraying device for municipal engineering according to claim 1, characterized in that: The piston (214) has a crossbar (216) welded to the top, which is located inside the ash hopper (212).

6. A ash line spraying device for municipal engineering according to claim 2, characterized in that: The base (1) has a threaded hole (305) on one side of its top, and the threaded hole (305) matches the external threaded groove (302).