Pay-off device for building engineering construction
By designing a line-feeding device that includes a conical hopper and a line-feeding assembly, and utilizing rollers and a spiral feeding shaft to achieve uniform feeding of lime, the problem of laborious and uneven traditional lime-spreading line-feeding is solved, thus achieving uniform line marking and easy operation.
Patent Information
- Application Number
- CN202520394972.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Traditional ash spreading and line laying operations are laborious and prone to problems such as unevenness, broken lines, and gaps.
Design a line feeding device that includes a conical hopper and a line feeding assembly. The device uses rollers to drive a spiral feeding shaft to achieve uniform feeding of lime. A switching unit cuts off the lime drop during the transfer process to prevent excessive lime from falling.
It achieves uniform lime feeding and marking, avoids broken lines and gaps, makes operation easy, and reduces lime waste during transfer.
Smart Images

Figure CN223853847U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering technology, specifically a line-laying device for building construction. Background Technology
[0002] Construction layout, also known as construction setting out, refers to marking key information such as the outline, dimensions, and location of a building on the ground according to the design drawings at the construction site. This allows construction workers to carry out construction according to this information. Spreading lines is a common method for construction layout.
[0003] The traditional steps for spreading ash and setting out lines are as follows: Marking ink lines: Starting from the control point, use ink lines and a measuring tape to mark the outline, axis, etc. of the building according to the requirements of the design drawings;
[0004] Nailing: Nail a nail at regular intervals on the marked chalk line as a reference point during construction; Hanging plumb line: Hang a plumb bob at the control point to ensure the verticality of the construction line.
[0005] Spreading ash lines: Using an ash bucket and a shovel, spread the ash lines evenly on the ink lines;
[0006] In actual operation, when spreading lime with a shovel, the lime is placed on the shovel, and the shovel moves along a predetermined trajectory. At the same time, the shovel needs to be shaken continuously to shake off the lime to achieve the line marking operation. This operation is not only laborious, but also prone to problems such as unevenness, broken lines, and gaps. Based on this, a line marking device for construction engineering is provided. Utility Model Content
[0007] The purpose of this utility model is to provide a line-laying device for construction engineering in order to solve the problems mentioned above.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a line-laying device for construction engineering, comprising a shell assembly consisting of a conical bucket and a hand-held rod, wherein the hand-held rod is fixed to one end of the outer side of the conical bucket, the conical bucket is used to provide storage space for lime, a discharge port is provided in the middle of the bottom of the conical bucket, and a line-laying assembly is provided at the bottom of the conical bucket, the line-laying assembly including a material dropping unit and a switching unit;
[0009] The switching unit is used to switch the connection state between the material feeding unit and the material discharge port;
[0010] The feeding unit is used to uniformly feed the lime falling from the feeding port.
[0011] As a further embodiment of this utility model: the material feeding unit includes a material feeding seat, a conveying bin, a feeding port, a material discharge port, a spiral feeding shaft, and rollers;
[0012] The feeding seat is attached to the bottom of the conical hopper, the conveying chamber is opened inside the feeding seat, the inlet is opened at the top of the feeding seat and is connected to the conveying chamber, and the discharge port is fixed to one side of the bottom of the feeding seat and is connected to the conveying chamber.
[0013] The spiral feeding shaft is rotatably connected to the inside of the conveying chamber, and the shaft of the spiral feeding shaft passes through to the outside of the unloading seat and is fixedly connected to the roller.
[0014] Aligning the inlet and outlet allows lime to fall into the conveying bin. Rollers along the ground drive the screw conveyor shaft to transport the lime from the conveying bin to the outlet for uniform discharge.
[0015] As a further improvement of this utility model: the switching unit includes a rotating arm and a torsion spring;
[0016] T-shaped columns are fixed on both sides of the outer wall of the conical bucket near the bottom. The rotating arm is fixed to the top of the feeding seat and rotatably connected to the T-shaped column. The torsion spring is distributed on the side of the rotating arm and in the middle of the protrusion of the T-shaped column and is sleeved with the T-shaped column. The two ends of the torsion spring are respectively engaged with the rotating arm and the T-shaped column.
[0017] The torsion spring is used to provide thrust to the feed seat so that the feed inlet and the feed outlet are misaligned under normal conditions.
[0018] As a further embodiment of this utility model: two limiting posts are fixed on both sides of the outer wall of the conical bucket, and the two limiting posts are arranged in a ring around the T-shaped post, with the rotating arm distributed between the two limiting posts.
[0019] As a further improvement of this utility model: the bottom of the conical hopper and the feeding seat are in contact with each other in an arc-shaped structure, and the center of the arc-shaped structure coincides with the center line of the T-shaped column.
[0020] As a further embodiment of this utility model: the longitudinal length of the feeding seat is greater than the distribution length of the two T-shaped columns, the feeding port and the roller are respectively distributed on both sides of the feeding seat, and the bottom horizontal height of the feeding port is higher than the bottom horizontal height of the roller.
[0021] Compared with the prior art, the beneficial effects of this utility model are:
[0022] By setting up a line feeding assembly, the rolling of rollers drives the rotation of the screw feed shaft, achieving uniform feeding of lime. The overall operation is easy and the line marking is uniform, effectively avoiding problems such as broken lines and gaps. At the same time, when the device is lifted off the ground, the feed port is deflected and misaligned with the feed port under the torsion of the torsion spring, thus cutting off the falling lime. This prevents excessive lime from falling during the transfer of the device. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of this utility model;
[0024] Figure 2 This is another perspective view of the present invention;
[0025] Figure 3 This is a cross-sectional view of the material feeding seat and material discharge port of this utility model;
[0026] Figure 4 This is a cross-sectional view of the material feeding seat and conical hopper of this utility model;
[0027] Figure 5 This is a schematic diagram showing the disassembly of the wire feeding assembly and the outer shell assembly of this utility model.
[0028] In the diagram: 1. Outer shell assembly; 101. Conical hopper; 102. Hand handle; 103. Discharge port; 104. T-shaped column; 105. Limiting column; 2. Wire feeding assembly; 201. Discharge seat; 202. Rotating arm; 203. Torsion spring; 204. Conveying bin; 205. Feed inlet; 206. Drop outlet; 207. Spiral feed shaft; 208. Roller. Detailed Implementation
[0029] 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.
[0030] Please see Figures 1-5 In this embodiment of the present invention, a line-laying device for construction engineering includes an outer shell assembly 1 consisting of a conical hopper 101 and a hand-held rod 102. The hand-held rod 102 is fixed to one end of the outer side of the conical hopper 101. The conical hopper 101 is used to provide storage space for lime. A discharge port 103 is provided in the middle of the bottom of the conical hopper 101. A line-laying assembly 2 is provided at the bottom of the conical hopper 101. The line-laying assembly 2 includes a material dropping unit and a switching unit. The switching unit is used to switch the material dropping unit and the material dropping port 103 to a conductive state. The material dropping unit is used to uniformly discharge the lime falling from the material dropping port 103.
[0031] The material feeding unit includes a feeding seat 201, a conveying bin 204, a feeding port 205, a discharge port 206, a spiral feeding shaft 207, and rollers 208;
[0032] The feeding seat 201 is attached to the bottom of the conical bucket 101, the conveying chamber 204 is opened inside the feeding seat 201, the inlet 205 is opened at the top of the feeding seat 201 and is connected to the conveying chamber 204, and the discharge port 206 is fixed to one side of the bottom of the feeding seat 201 and is connected to the conveying chamber 204.
[0033] The screw feed shaft 207 is rotatably connected to the inside of the conveying bin 204, and the shaft of the screw feed shaft 207 passes through to the outside of the unloading seat 201 and is fixedly connected to the roller 208.
[0034] The feed inlet 205 is aligned with the discharge outlet 103 to allow lime to fall into the conveying bin 204. The roller 208 rolls along the ground to drive the screw feed shaft 207 to rotate, which is used to transport the lime inside the conveying bin 204 to the discharge outlet 206 for uniform feeding.
[0035] The switching unit includes a rotating arm 202 and a torsion spring 203;
[0036] T-shaped columns 104 are fixed on both sides of the outer wall of the conical bucket 101 near the bottom. The rotating arm 202 is fixed to the top of the feeding seat 201 and is rotatably connected to the T-shaped column 104. The torsion spring 203 is distributed on the side of the rotating arm 202 and in the middle of the protrusion of the T-shaped column 104 and is sleeved with the T-shaped column 104. The two ends of the torsion spring 203 are respectively engaged with the rotating arm 202 and the T-shaped column 104.
[0037] The torsion spring 203 is used to provide thrust to the feed seat 201 so that the feed inlet 205 is misaligned with the feed outlet 103 in normal state. Two limiting posts 105 are fixed on both sides of the outer wall of the conical bucket 101. The two limiting posts 105 are arranged in a ring around the T-shaped post 104. The rotating arm 202 is located between the two limiting posts 105.
[0038] In this embodiment, the operation method of this wire feeding device is as follows:
[0039] When lime is poured into the conical hopper 101, the rotating arm 202 is in contact with a limiting post 105 away from the hand handle 102 under the torsion of the torsion spring 203. At this time, the discharge seat 201 and the conical hopper 101 are vertically aligned, and the feed inlet 205 and the discharge outlet 103 are staggered. Thus, the contents of the conical hopper 101 will not fall temporarily.
[0040] Then, by holding the handle 102, the device is pushed along the set route. Its roller 208 contacts the ground. During this process, when pushing forward, the roller 208 is pushed by the opposite force from the ground. This force causes the feeding seat 201, the rotating arm 202, and the roller 208 to rotate around the T-shaped column 104 towards the handle 102. Finally, the rotating arm 202 fits against the limiting column 105 near the handle 102, and the feed port 205 on the feeding seat 201 is aligned with the feeding port 103. The lime inside the conical head 101 enters the conveying chamber 204 through the feeding port 103 and the feed port 205.
[0041] At the same time, the roller 208 rolling along the ground drives the spiral feeding shaft 207 to rotate. The rotating spiral feeding shaft 207 pushes the lime falling into the conveying bin 204 towards the discharge port 206 through the spiral blades. Finally, the lime falls to the ground through the discharge port 206, realizing the lime spreading and line laying operation. The overall operation is easy and the line is drawn evenly, effectively avoiding problems such as broken lines and gaps.
[0042] When the entire device is lifted, the roller 208 leaves the ground and loses its squeezing force. At this time, the feeding seat 201 will return to its initial position under the action of the torsion spring. At this time, the feed port 205 is misaligned with the feeding port 103 again, thereby cutting off the falling lime. In this way, when the device is moved, even if the roller 208 rotates, only a small amount of lime remaining in the conveying chamber 104 will fall, and not too much lime will fall.
[0043] It should also be noted that if the device is pulled in the direction of the first hand lever 102, the roller 208 will also drive the material feeding seat 201 to return to its initial state under the reaction force of the ground. In this way, lime will not fall off during the process, avoiding repeated marking.
[0044] Please refer to this carefully. Figures 1-5 The bottom of the conical hopper 101 and the feeding seat 201 are in contact with each other in an arc-shaped structure, and the center of the arc-shaped structure coincides with the center line of the T-shaped column 104.
[0045] In this embodiment, this structure allows the feed seat 201 to maintain a good fit with the bottom of the conical hopper 101 during the deflection process.
[0046] Please refer to this carefully. Figures 1-5 The longitudinal length of the feeding seat 201 is greater than the distribution length of the two T-shaped columns 104. The feeding port 206 and the roller 208 are respectively distributed on both sides of the feeding seat 201, and the bottom horizontal height of the feeding port 206 is higher than the bottom horizontal height of the roller 208.
[0047] In this embodiment: by having a longitudinal length of the feeding seat 201 that is greater than the distribution length of the two T-shaped columns 104, the roller 208 and the T-shaped columns 104 can be kept out of contact. At the same time, the discharge port 206 is distributed on the outside of the conical port 101, making it easy to observe the position where the lime falls.
[0048] 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 pay-off device for construction engineering works, comprising a housing assembly (1) consisting of a conical hopper (101) and a hand-held rod (102), the hand-held rod (102) being fixed to the outer end of the conical hopper (101), the conical hopper (101) being intended to provide a storage space for lime, characterized in that, The bottom of the conical hopper (101) is provided with a discharging port (103), and the bottom of the conical hopper (101) is provided with a pay-off assembly (2), which comprises a blanking unit and a switching unit. The switching unit is used to realize the switching operation of the blanking unit and the discharging port (103). The blanking unit is used to uniformly discharge the lime falling from the discharging port (103).
2. The line paying out device for construction work according to claim 1, wherein The blanking unit comprises a blanking seat (201), a conveying bin (204), a feed port (205), a blanking port (206), a spiral feeding shaft (207) and a roller (208). The blanking seat (201) is attached to the bottom of the conical hopper (101), the conveying bin (204) is arranged inside the blanking seat (201), the feed port (205) is arranged on the top of the blanking seat (201) and is connected to the conveying bin (204), and the blanking port (206) is fixed to one side of the bottom of the blanking seat (201) and is connected to the conveying bin (204). The spiral feeding shaft (207) is rotatably connected to the inner side of the conveying bin (204), and the shaft of the spiral feeding shaft (207) penetrates to the outside of the blanking seat (201) and is fixedly connected to the roller (208). The feed port (205) is aligned with the discharging port (103) to allow the lime to fall into the conveying bin (204), the roller (208) rolls along the ground to drive the spiral feeding shaft (207) to rotate, and the lime in the conveying bin (204) is conveyed to the blanking port (206) for uniform discharge.
3. The line paying out device for construction work according to claim 2, wherein The switching unit comprises a rotating arm (202) and a torsional spring (203). The outer wall of the conical hopper (101) is fixed with a T-shaped column (104) near the bottom, the rotating arm (202) is fixed to the top of the blanking seat (201) and is rotatably connected to the T-shaped column (104), the torsional spring (203) is arranged between the side of the rotating arm (202) and the protruding portion of the T-shaped column (104) and is sleeved with the T-shaped column (104), and the two ends of the torsional spring (203) are respectively connected to the rotating arm (202) and the T-shaped column (104). The torsional spring (203) provides a pushing force for the blanking seat (201) to make the feed port (205) misaligned with the discharging port (103) in the normal state.
4. The line paying out device for construction work according to claim 3, wherein The outer wall of the conical hopper (101) is fixed with two limiting columns (105) on both sides, the two limiting columns (105) are arranged in a ring shape around the T-shaped column (104), and the rotating arm (202) is arranged between the two limiting columns (105).
5. The line paying out device for construction work according to claim 3, wherein The position where the bottom of the conical hopper (101) and the blanking seat (201) are attached to each other is in an arc surface structure, and the center of the arc surface structure coincides with the centerline of the T-shaped column (104).
6. The line paying out device for construction work according to claim 3, wherein The longitudinal length of the blanking seat (201) is greater than the distribution length of the two T-shaped columns (104), the blanking port (206) and the roller (208) are arranged on both sides of the blanking seat (201), and the bottom of the blanking port (206) is higher than the bottom of the roller (208).