A fixed spraying device for construction
By designing a fixed spraying device for construction, and using limiting, telescopic and locking mechanisms to fix the sprayed signs to the frame columns, the problems of troublesome operation and high cost of spraying signs are solved, and convenient installation and high-quality spraying are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING NO 3 CONSTR ENG
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-21
AI Technical Summary
In construction, spraying signs requires manual operation and equipment coordination, which is cumbersome and costly, and manual operation also leads to inconsistent spraying quality.
A fixed spraying device for construction was designed, including a limiting mechanism, a telescopic mechanism, and a locking mechanism. These mechanisms fix the spraying sign to the frame column, enabling convenient installation and disassembly, reducing labor costs and improving spraying quality.
It enables convenient installation and removal of spray-painted signs, reduces labor costs, and improves spray quality and operational flexibility.
Smart Images

Figure CN224532163U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, specifically to a fixed spraying device for construction. Background Technology
[0002] In building construction, the markings such as the one-meter line and axis lines need to be determined according to the project stage and construction requirements.
[0003] In building construction, it is necessary to spray-paint markings on the frame columns. The spray-painted signs are an indispensable key tool in the process. Since the frame columns are vertical load-bearing components, one worker needs to hold the sign in hand at the position to be sprayed, while another worker holds the spraying equipment to spray. They need to cooperate with each other. However, the operation is relatively troublesome and the labor cost is high. In addition, if the sign is shaken during the spraying process, it will affect the quality of the sprayed markings.
[0004] Therefore, a fixed spraying device for construction is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide a fixed spraying device for construction in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0007] A fixed spraying device for construction includes a fixed frame with a positioning groove. A spraying sign is movably disposed inside the positioning groove. The fixed frame is provided with two limiting mechanisms for obstructing and limiting the spraying sign. Two connecting shells are provided on one side of the fixed frame. Each of the two connecting shells is provided with two sets of telescopic mechanisms for elastic extension and retraction. Each of the two connecting shells is provided with two sets of locking mechanisms for locking the telescopic mechanism to prevent elastic retraction.
[0008] Furthermore, the limiting mechanism includes two U-shaped rods, which are fixedly installed on the surface of the fixed frame. Limiting plates are slidably installed on the inner walls of the two U-shaped rods, and the limiting plates are slidably installed on the fixed frame and in contact with the sprayed nameplate.
[0009] Furthermore, an L-shaped plate is fixedly installed on the surface of the fixed frame, a circular hole is passed through the surface of the L-shaped plate, a threaded ring is fixedly installed on the top of the L-shaped plate, and the diameter of the threaded ring is larger than the diameter of the circular hole. A T-shaped cylinder is rotatably installed on the limiting plate, and the T-shaped cylinder is set in the circular hole. A connecting stud is fixedly installed on the surface of the T-shaped cylinder, and the connecting stud is threaded on the inner wall of the threaded ring. A knob is fixedly installed on the surface of the connecting stud.
[0010] Furthermore, the telescopic mechanism includes a cylinder, which is fixedly installed inside the connecting shell. A T-shaped shaft is slidably installed on the inner wall of the cylinder. A spring is sleeved on the outer wall of the T-shaped shaft and is located inside the cylinder. A connecting claw plate is fixedly installed on the surface of the T-shaped shaft.
[0011] Furthermore, a friction pad is fixedly installed on the surface of the connecting claw plate, and the friction pad is made of rubber.
[0012] Furthermore, the locking mechanism includes a plug block, which is slidably mounted on the connecting shell. Multiple slots are provided on the surface of the T-shaped shaft, and the plug block is slidably mounted on the inner wall of one of the slots. A T-shaped stud is threaded onto the connecting shell, and the T-shaped stud is rotatably mounted on the plug block. A knob is fixedly mounted on the surface of the T-shaped stud.
[0013] The beneficial effects of this utility model are as follows:
[0014] This utility model, through the setting of limiting mechanisms, telescopic mechanisms, and locking mechanisms, places the spray-painted sign in the positioning groove of the fixed frame. Two sets of limiting mechanisms block and limit its upper and lower positions, ensuring it fits tightly in the positioning groove of the fixed frame. Conversely, it can be disassembled. Then, the two sets of telescopic mechanisms on the left are pre-fitted to one side of the frame column, and the two sets of telescopic mechanisms on the right are placed on the other side of the frame column, with the fixed frame in contact with the frame column. At this time, with the cooperation of the four sets of telescopic mechanisms, the fixed frame is clamped and fixed to the frame column. The four sets of locking mechanisms lock the positions of the four sets of telescopic mechanisms in sequence, preventing the four sets of telescopic mechanisms from affecting the stability of clamping and fixing due to elastic retraction. At this time, the preparation work is completed, and the worker can hold the spraying equipment to spray, thereby facilitating the installation and removal of the spray-painted sign, improving flexibility, and fixing the spray-painted sign to the position to be sprayed on the frame column, making spraying convenient, reducing labor costs, and making the operation simple and highly practical. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the connecting stud of this utility model;
[0017] Figure 3 This is a schematic diagram of the cylindrical structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the insert block of this utility model.
[0019] Reference numerals: 1. Fixed frame; 2. Painted nameplate; 3. Limiting mechanism; 301. U-shaped rod; 302. Limiting plate; 303. L-shaped plate; 304. T-shaped cylinder; 305. Threaded ring; 306. Connecting stud; 307. Knob one; 4. Connecting shell; 5. Telescopic mechanism; 501. Cylinder; 502. T-shaped shaft; 503. Spring; 504. Connecting claw plate; 6. Locking mechanism; 601. Slot; 602. Insert block; 603. T-shaped stud; 604. Knob two. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0022] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0023] The electrical components mentioned in this article are all connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can be used for control.
[0024] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. 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.
[0025] like Figure 1 , Figure 3As shown, a fixed spraying device for construction includes a fixed frame 1, a positioning groove on the fixed frame 1, a spraying sign 2 movably disposed inside the positioning groove, and a limiting mechanism 3 on the fixed frame 1 for obstructing and limiting the spraying sign 2, wherein the number of limiting mechanisms 3 is two sets; Figure 1-2 As shown, specifically, the limiting mechanism 3 includes two U-shaped rods 301, which are fixedly installed on the surface of the fixed frame 1. Limiting plates 302 are slidably installed on the inner walls of the two U-shaped rods 301, and the limiting plates 302 are slidably installed on the fixed frame 1 and in contact with the sprayed nameplate 2. An L-shaped plate 303 is fixedly installed on the surface of the fixed frame 1. A circular hole is penetrating the surface of the L-shaped plate 303. A threaded ring 305 is fixedly installed on the top of the L-shaped plate 303, and the ring diameter of the threaded ring 305 is larger than the diameter of the circular hole. A T-shaped cylinder 304 is rotatably installed on the limiting plate 302, and the T-shaped cylinder 304 is set in the circular hole. A connecting stud 306 is fixedly installed on the surface of the T-shaped cylinder 304, and the connecting stud 306 is threaded onto the inner wall of the threaded ring 305. A knob 307 is fixedly installed on the surface of the connecting stud 306.
[0026] More specifically, the T-shaped cylinder 304 can slide and rotate within the circular hole. In use, by holding the knob 307, the T-shaped cylinder 304 is pushed to slide within the circular hole, and the limiting plate 302 rotates on the fixed frame 1. Then, by rotating the knob 307, the threaded ring 305 and the T-shaped cylinder 304 are rotated. Since the threaded ring 305 and the connecting stud 306 are threadedly connected, the connecting stud 306 can move longitudinally during rotation, pushing the T-shaped cylinder 304 and the limiting plate 302 to move, so that the limiting plate 302 comes into contact with the sprayed sign 2, blocking and limiting the sprayed sign 2, and fitting into the positioning groove of the fixed frame 1.
[0027] Two connecting shells 4 are provided on one side of the fixed frame 1, and each of the two connecting shells 4 has two sets of telescopic mechanisms 5 for elastic extension and retraction; such as Figure 1 , Figure 3-4 As shown, specifically, the telescopic mechanism 5 includes a cylinder 501, which is fixedly installed inside the connecting shell 4. A T-shaped shaft 502 is slidably installed on the inner wall of the cylinder 501. A spring 503 is sleeved on the outer wall of the T-shaped shaft 502 and is located inside the cylinder 501. A connecting claw plate 504 is fixedly installed on the surface of the T-shaped shaft 502. A friction pad made of rubber is fixedly installed on the surface of the connecting claw plate 504.
[0028] More specifically, by setting the rubber friction pad, the frictional resistance in contact with the frame column can be enhanced, thereby improving the stability of the clamping and fixing. In use, the connecting claw plate 504 contacts one side of the frame column and applies force to it, causing the T-shaped shaft 502 to slide inside the cylinder 501 and compress the spring 503. With the cooperation of the four sets of springs 503, the elastic potential energy can be used to clamp the four sets of connecting claw plates 504 on the frame column, fixing the fixed frame 1 on the frame column, and the sprayed sign 2 is then fixed at the position to be sprayed.
[0029] Both connecting shells 4 are equipped with two sets of locking mechanisms 6 for locking the telescopic mechanism 5 in its telescopic position to prevent elastic retraction; such as Figure 1 , Figure 3-4 As shown, specifically, the locking mechanism 6 includes a plug 602, which is slidably mounted on the connecting shell 4. The surface of the T-shaped shaft 502 is provided with multiple slots 601, and the plug 602 is slidably mounted on the inner wall of one of the slots 601. A T-shaped stud 603 is threadedly mounted on the connecting shell 4, and the T-shaped stud 603 is rotatably mounted on the plug 602. A knob 604 is fixedly mounted on the surface of the T-shaped stud 603.
[0030] More specifically, multiple slots 601 are equidistantly distributed. By rotating knob 604, the T-shaped stud 603 is rotated and moved downward, pushing the T-shaped stud 603 to move and insert into the corresponding slot 601, thereby locking the position of the T-shaped shaft 502 and preventing the spring 503 from elastically retracting.
[0031] In summary, this device is suitable for frame columns of 600mm-1000mm in size. During use, the spray-painted sign 2 is placed in the positioning groove of the fixed frame 1. Two sets of limiting mechanisms 3 block and limit its upper and lower positions, ensuring a tight fit within the positioning groove of the fixed frame 1. Conversely, it can be disassembled. Then, the two sets of telescopic mechanisms 5 on the left are pre-fitted to one side of the frame column. The two sets of telescopic mechanisms 5 on the right are then placed on the other side of the frame column, with the fixed frame 1 in contact with the frame column. With the cooperation of the four sets of telescopic mechanisms 5, the fixed frame 1 is clamped and fixed to the frame column. Four sets of locking mechanisms 6 sequentially lock the extended positions of the four sets of telescopic mechanisms 5, preventing the elastic retraction of the four sets of telescopic mechanisms 5 from affecting the stability of the clamping and fixing. The preparation is now complete. Workers can then use the spraying equipment to spray, facilitating the installation and removal of the spray-painted sign 2, improving flexibility, and fixing the sign 2 to the frame column for easy spraying, reducing labor costs. It is simple to operate and highly practical.
[0032] 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 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A fixed spraying device for construction, comprising a fixed frame (1), characterized in that, The fixed frame (1) is provided with a positioning groove, and a sprayed sign (2) is movably arranged inside the positioning groove. The fixed frame (1) is provided with a limiting mechanism (3) for blocking and limiting the sprayed sign (2), and there are two sets of limiting mechanisms (3). Two connecting shells (4) are provided on one side of the fixed frame (1). Two sets of telescopic mechanisms (5) for elastic extension and retraction are provided inside the two connecting shells (4). Two sets of locking mechanisms (6) for locking the telescopic mechanism (5) in the telescopic position to prevent elastic retraction are provided on the two connecting shells (4).
2. The fixed spraying device for construction according to claim 1, characterized in that, The limiting mechanism (3) includes two U-shaped rods (301), which are fixedly installed on the surface of the fixed frame (1). Limiting plates (302) are slidably installed on the inner walls of the two U-shaped rods (301), and the limiting plates (302) are slidably installed on the fixed frame (1) and in contact with the sprayed sign (2).
3. A fixed spraying device for construction according to claim 2, characterized in that, An L-shaped plate (303) is fixedly installed on the surface of the fixed frame (1). A circular hole is passed through the surface of the L-shaped plate (303). A threaded ring (305) is fixedly installed on the top of the L-shaped plate (303), and the ring diameter of the threaded ring (305) is larger than the diameter of the circular hole. A T-shaped cylinder (304) is rotatably installed on the limiting plate (302), and the T-shaped cylinder (304) is set in the circular hole. A connecting stud (306) is fixedly installed on the surface of the T-shaped cylinder (304), and the connecting stud (306) is threaded on the inner wall of the threaded ring (305). A knob (307) is fixedly installed on the surface of the connecting stud (306).
4. A fixed spraying device for construction according to claim 1, characterized in that, The telescopic mechanism (5) includes a cylinder (501), which is fixedly installed inside the connecting shell (4). A T-shaped shaft (502) is slidably installed on the inner wall of the cylinder (501). A spring (503) is sleeved on the outer wall of the T-shaped shaft (502), and the spring (503) is located inside the cylinder (501). A connecting claw plate (504) is fixedly installed on the surface of the T-shaped shaft (502).
5. A fixed spraying device for construction according to claim 4, characterized in that, A friction pad is fixedly installed on the surface of the connecting claw plate (504), and the friction pad is made of rubber.
6. A fixed spraying device for construction according to claim 4, characterized in that, The locking mechanism (6) includes a plug (602), which is slidably mounted on the connecting shell (4). The surface of the T-shaped shaft (502) is provided with multiple slots (601), and the plug (602) is slidably mounted on the inner wall of one of the slots (601). A T-shaped stud (603) is threadedly mounted on the connecting shell (4), and the T-shaped stud (603) is rotatably mounted on the plug (602). A knob (604) is fixedly mounted on the surface of the T-shaped stud (603).