A hand-held pavement marker

Abstract

The utility model relates to road construction field discloses a hand -held road surface line marker, including line marking machine and setting at the right side of line marking machine's spray gun, the middle part of spray gun is provided with locking assembly, locking assembly includes the fixed block of fixed connection in the middle part of spray gun, the both ends of fixed block all rotatively connect with the rotating lever, two groups rotating lever's middle part all are inserted and are connected with the connecting rod, two groups connecting rod's front end are fixedly connected with locking rod in common, are used for directly contacting and clamping spray gun handle to make it always compress tightly and cannot loosen. In the utility model, through pressing the handle of spray gun and locking rod, after the material of spray gun is sprayed, the elastic force of cooperation spring will push the limiting rod and automatically insert into the insertion hole on the corresponding connecting rod, realize the compression locking of locking rod to spray gun handle, do not need artificial continuous pressing force, effectively avoid the fatigue of the hand of operator because of long -time pressing, further improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of road construction, and in particular to a handheld road marking device. Background Technology

[0002] In the field of road construction and maintenance, handheld road marking devices are widely used in marking operations in scenarios such as parking lots, community roads, and pedestrian crossings due to their portability, flexibility, and low cost. Traditional handheld marking devices usually store and deliver marking paint through a marking machine, and then the paint is precisely sprayed onto the road surface by a spray gun to form marking lines, meeting the needs of area division, path guidance, and safety warning.

[0003] However, traditional handheld road marking spray guns usually require the user to keep their hand pressing the handle to maintain normal spray output. Pressing the handle for a long time can cause arm fatigue for the operator, especially in projects that require continuous operation for several hours, which can easily lead to muscle strain and reduce work efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a handheld road marking device, which aims to improve the problem in the prior art that "the spray gun of the traditional handheld road marking device requires the operator to keep pressing the handle with their hand to maintain the material output, and prolonged pressing can easily lead to arm fatigue and reduce work efficiency".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a handheld road marking device, comprising a marking machine and a spray gun disposed on the right side of the marking machine. A locking assembly is provided in the middle of the spray gun. The locking assembly includes a fixing block fixedly connected to the middle of the spray gun. Rotating rods are rotatably connected to both ends of the fixing block. Connecting rods are inserted through the middle of both sets of rotating rods. Locking rods are fixedly connected to the front ends of both sets of connecting rods. Locking rods are used to directly contact and clamp the spray gun handle so that it is always pressed and cannot be loosened. The locking rod is in close contact with and pressed against the front surface of the spray gun handle to achieve the pressing and locking of the spray gun handle. A limit component is provided on the rear surface of the fixing block.

[0006] As a further description of the above technical solution:

[0007] Multiple sets of insertion holes are evenly opened on the opposite surfaces of the two sets of connecting rods along the length direction. The inner walls of the two sets of rotating rods are provided with a second sliding groove. The left and right sides of the two sets of rotating rods are provided with a first sliding groove. The second sliding groove and the first sliding groove are distributed perpendicularly to form a sliding guide channel for the limiting rod.

[0008] As a further description of the above technical solution:

[0009] Both sets of slide grooves are slidably connected to limit rods on their inner walls. The end of the limit rod away from the slider can be adapted to be inserted into the inner wall of the insertion hole. By cooperating with different insertion holes, the locking degree of the locking rod on the spray gun handle can be adjusted.

[0010] As a further description of the above technical solution:

[0011] The outer ends of both sets of limiting rods are designed with bevels to facilitate insertion into the inner wall of the insertion hole.

[0012] As a further description of the above technical solution:

[0013] Both sets of limiting rods have sliders fixedly connected to their opposite surfaces, and both sets of sliders are elastically connected to the two sets of rotating rods respectively by springs.

[0014] As a further description of the above technical solution:

[0015] The two sets of sliders are respectively connected to the inner walls of the two sets of slide grooves. The two sets of sliders extend outward beyond the outer wall of the rotating rod. The extended slider parts are easy for the operator to manually move to control the separation of the limiting rod and the insertion hole, so as to realize the adjustment of the distance between the connecting rods.

[0016] As a further description of the above technical solution:

[0017] The limiting component includes a guide block, and two sets of limiting blocks are fixedly connected to both the upper and lower ends of the guide block. The two sets of limiting blocks are slidably connected to the upper and lower surfaces of the fixed block.

[0018] As a further description of the above technical solution:

[0019] A screw rod is threaded through the middle of the guide block and rotatably connected to the rear surface of the middle of the fixed block. An anti-slip rod is fixedly connected to the rear end of the screw rod. Four sets of limiting blocks are respectively engaged between the two sets of sliders and the fixed blocks to limit the sliders and prevent them from loosening.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, by pressing the handle and locking rod of the spray gun, after the spray gun sprays out the material, the pressing action can be released. The elastic force of the spring will push the limit rod to automatically insert into the corresponding hole on the connecting rod, thereby realizing the locking rod pressing and locking the spray gun handle. There is no need for continuous manual pressing, which effectively avoids the fatigue of the operator's hands caused by long-term pressing and further improves work efficiency.

[0022] 2. In this utility model, the guide block is moved by the threaded transmission of the rotating screw, so that the limiting blocks at the upper and lower ends of the guide block are precisely engaged between the slider and the fixed block, limiting the sliding displacement of the slider and preventing the slider from moving. This ensures that the limiting rod is always stably inserted into the insertion hole, maintaining the stable pressing of the locking component on the handle, and further improving stability and working efficiency. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0024] Figure 2 This is a rear view schematic diagram of the three-dimensional structure of the spray gun in this utility model;

[0025] Figure 3 This is a right rear view schematic diagram of the three-dimensional structure of the spray gun in this utility model;

[0026] Figure 4 This is a three-dimensional cross-sectional view and disassembled schematic diagram of the fixing block, guide block and rotating rod in this utility model.

[0027] Legend:

[0028] 1. Marking machine; 2. Spray gun; 3. Limiting assembly; 4. Locking assembly; 31. Guide block; 32. Anti-slip rod; 33. Screw; 34. Limiting block; 41. Locking rod; 42. Connecting rod; 43. Rotating rod; 44. Fixing block; 45. Insertion hole; 46. Slide groove one; 47. Slide groove two; 48. Limiting rod; 49. Slider; 410. Spring. 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] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a handheld road marking device, including a marking machine 1 and a spray gun 2 disposed on the right side of the marking machine 1. A locking assembly 4 is provided in the middle of the spray gun 2 for pressing and locking the handle of the spray gun 2 to prevent loosening, without requiring constant pressing. The locking assembly 4 includes a fixing block 44 fixedly connected to the middle of the spray gun 2. Rotating rods 43 are rotatably connected to both the upper and lower ends of the fixing block 44. Connecting rods 42 for transmitting the locking force are inserted through the middle of both sets of rotating rods 43. The front ends of the connecting rods 42 are fixedly connected to a locking rod 41, which is used to directly contact and clamp the handle of the spray gun 2 so that it is always pressed and cannot be loosened. The locking rod 41 is in close contact with and pressed against the front surface of the handle of the spray gun 2 to achieve the pressing and locking of the handle of the spray gun 2. The rear surface of the fixing block 44 is provided with a limit component 3. The opposite surfaces of the two sets of connecting rods 42 are evenly opened with multiple sets of insertion holes 45 for matching the limit. The inner walls of the two sets of rotating rods 43 are provided with a sliding groove 47 for installing and providing space for the movement of the limit rod 48.

[0031] Furthermore, both sides of the two sets of rotating rods 43 are provided with sliding grooves 46 for sliding sliders 49. Sliding grooves 47 are perpendicular to sliding grooves 46, forming sliding guide channels for the limiting rods 48. The inner walls of both sets of sliding grooves 47 are slidably connected to limiting rods 48 for positioning by inserting them into the insertion holes 45. The end of the limiting rod 48 away from the slider 49 can be fitted into the inner wall of the insertion hole 45. By cooperating with different insertion holes 45, the locking degree of the locking rod 41 on the spray gun 2 handle can be adjusted. The outer ends of both sets of limiting rods 48 are beveled, facilitating… Insert the handle into the inner wall of the insertion hole 45. With the inclined surface, the locking rod 41 can be pressed simultaneously when the handle is pressed, causing the connecting rod 42 to move continuously while squeezing the inclined surface of the limiting rod 48, which automatically retracts inward to compress the spring 410. When the handle is pressed until the spray gun 2 sprays out material, the pressing can be released. At the same time, the elastic force of the spring 410 causes the limiting rod 48 to return to the corresponding insertion hole 45, thus limiting the connecting rod 42 and the locking rod 41. This prevents the handle from loosening and eliminates the need for manual continuous pressing of the handle, reducing the difficulty of manual adjustment and physical exertion.

[0032] Furthermore, each of the two sets of limiting rods 48 has a slider 49 fixedly connected to its opposite surface to support the stable movement of the limiting rods 48. Both sets of sliders 49 are elastically connected to the two sets of rotating rods 43 via springs 410. The springs 410 can provide a reset force after the limiting rods 48 are disengaged from the insertion holes 45, pushing the limiting rods 48 to re-engage into the insertion holes 45. The two sets of sliders 49 pass through and are slidably connected to the inner walls of the two sets of sliding grooves 46. The two sets of sliders 49 extend outward beyond the outer wall of the rotating rods 43. The extended sliders 49 are easy for the operator to manually move to control the separation of the limiting rods 48 from the insertion holes 45, thereby adjusting the spacing of the connecting rods 42.

[0033] Reference Figure 2 , Figure 3 and Figure 4 The limiting component 3 includes a guide block 31 that drives multiple sets of limiting blocks 34 to move. Two sets of limiting blocks 34 are fixedly connected to both the upper and lower ends of the guide block 31 to limit the slider 49 and prevent it from moving. The two sets of limiting blocks 34 are slidably connected to the upper and lower surfaces of the fixed block 44. A screw 33 for driving the guide block 31 to move is threaded through and connected to the middle of the guide block 31. The screw 33 is rotatably connected to the rear surface of the middle part of the fixed block 44. Rotating the screw 33 can drive the guide block 31 to move along the front-back direction of the fixed block 44. The screw 33 is moved, thereby adjusting the relative position of the limiting block 34 and the slider 49. The rear end of the screw 33 is fixedly connected to an anti-slip rod 32 to increase friction and facilitate the operator to hold and rotate the screw 33. Four sets of limiting blocks 34 are respectively engaged between two sets of sliders 49 and the fixed block 44 to limit the slider 49 and prevent it from loosening. Through the blocking effect of the limiting block 34, the slider 49 is restricted from sliding in the non-adjustment state, and the limiting rod 48 is prevented from dislodging from the socket 45 due to vibration and other factors, so as to ensure the locking stability of the locking assembly 4.

[0034] Working principle: When marking lines on the road surface, press the handle of the spray gun 2 and simultaneously press the locking rod 41. This will cause the connecting rod 42 to move continuously with the pressing of the locking rod 41. During the pressing process, the connecting rod 42 presses the inclined surface of the limiting rod 48, causing it to automatically retract inward and compress the spring 410. When the handle of the spray gun 2 is pressed to the state of spraying material, release the pressure on the locking rod 41 and the handle. The elastic force of the spring 410 will reset the position and push the limiting rod 48 to re-adapt and insert into the corresponding position of the insertion hole 45. At this time, the connecting rod 42 and the locking rod 41 are limited and fixed. The locking rod 41 is in close contact with the front surface of the handle of the spray gun 2, realizing the pressing and locking of the handle. The working state can be maintained without the need for continuous manual pressing of the handle, reducing physical exertion.

[0035] To prevent the slider 49 from loosening in the non-adjusted state, the anti-slip rod 32 is rotated to drive the screw 33 to rotate, which in turn drives the guide block 31 to move along the front and back direction of the fixed block 44. The four sets of limit blocks 34 fixed at the upper and lower ends of the guide block 31 slide along the upper and lower surfaces of the fixed block 44 with the guide block 31. Finally, the four sets of limit blocks 34 are respectively locked between the two sets of sliders 49 and the fixed block 44, restricting the sliding of the slider 49, preventing vibration from causing the limit rod 48 to disengage from the insertion hole 45, ensuring the locking stability of the locking assembly 4, and ensuring the continuous and smooth operation of the marking work.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A handheld road marking device, comprising a marking machine (1) and a spray gun (2) disposed on the right side of the marking machine (1), characterized in that: A locking assembly (4) is provided in the middle of the spray gun (2); The locking assembly (4) includes a fixing block (44) fixedly connected to the middle of the spray gun (2). The upper and lower ends of the fixing block (44) are rotatably connected to rotating rods (43). The middle of the two sets of rotating rods (43) are both penetrated and inserted with connecting rods (42). The front ends of the two sets of connecting rods (42) are fixedly connected to locking rods (41), which are used to directly contact and clamp the handle of the spray gun (2) so that it is always pressed and cannot be loosened. The locking rods (41) are tightly contacted and pressed on the front surface of the handle of the spray gun (2) to achieve the pressing and locking of the handle of the spray gun (2). The rear surface of the fixing block (44) is provided with a limit assembly (3).

2. The handheld road marking device according to claim 1, characterized in that: The two sets of connecting rods (42) have multiple sets of insertion holes (45) evenly opened on their opposite sides along the length direction. The inner walls of the two sets of rotating rods (43) are provided with sliding grooves (47). The left and right sides of the two sets of rotating rods (43) are provided with sliding grooves (46). The sliding grooves (47) and sliding grooves (46) are perpendicularly distributed to form a sliding guide channel for the limiting rod (48).

3. A handheld road marking device according to claim 2, characterized in that: The inner walls of both sets of slide grooves (47) are slidably connected to limit rods (48). The end of the limit rod (48) away from the slider (49) can be adapted to be inserted into the inner wall of the socket (45). By cooperating with the limit rod (48) and different sockets (45), the degree of locking of the locking rod (41) to the handle of the spray gun (2) can be adjusted.

4. A handheld road marking device according to claim 3, characterized in that: The outer ends of both sets of limiting rods (48) are set as bevels to facilitate insertion into the inner wall of the insertion hole (45).

5. A handheld road marking device according to claim 3, characterized in that: Both sets of limiting rods (48) have sliders (49) fixedly connected to their opposite surfaces, and both sets of sliders (49) are elastically connected to the two sets of rotating rods (43) respectively by springs (410).

6. A handheld road marking device according to claim 5, characterized in that: The two sets of sliders (49) are respectively connected to the inner wall of the two sets of slide grooves (46). The two sets of sliders (49) extend outward from the outer wall of the rotating rod (43). The extended slider (49) is easy for the operator to manually move to control the separation of the limiting rod (48) and the insertion hole (45) and realize the spacing adjustment of the connecting rod (42).

7. A handheld road marking device according to claim 1, characterized in that: The limiting component (3) includes a guide block (31), and two sets of limiting blocks (34) are fixedly connected to both the upper and lower ends of the guide block (31). The two sets of limiting blocks (34) are slidably connected to the upper and lower surfaces of the fixed block (44).

8. A handheld road marking device according to claim 7, characterized in that: The guide block (31) has a threaded screw (33) running through its middle. The screw (33) is rotatably connected to the rear surface of the middle part of the fixing block (44). The rear end of the screw (33) is fixedly connected to an anti-slip rod (32). The four sets of limiting blocks (34) are respectively engaged between the two sets of sliders (49) and the fixing block (44) to limit the sliders (49) and prevent them from loosening.

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