Edge cutting device for municipal road surface construction
By designing a cutting device for municipal pavement construction including transverse telescopic fine adjustment components, mobile rods, self-weight fence components and spray dust reduction and cooling components, the problems of slag splashing and tool exposure during initial cutting are solved, better slag barrier and protection effects are achieved, and environmental protection and the service life of the cutting disc are improved.
Patent Information
- Application Number
- CN202421422163.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-21
AI Technical Summary
The existing edge cutting device for municipal pavement construction has a large distance between the ground and the protective shell during initial cutting, resulting in splashing of slag, sand and soil, and exposed to the lower half of the tool can easily cause personnel damage, and the slag barrier and protection effect is not ideal; at the same time, it is difficult to reduce cooling and dust during the edge cutting process, and the environmental protection is not ideal.
An edge cutting device including a T-shaped vehicle body connecting seat, multi-stage electric push rod, transverse telescopic fine adjustment assembly, moving rod, drive motor and cutting disk is designed. Through the cooperation of the transverse telescopic fine adjustment assembly and moving rod, the horizontal fine adjustment of the cutting disk and the downward movement of the cutting disk is achieved; at the same time, a self-weight enclosure assembly and a spray dust reduction and cooling assembly are provided to ensure that the cutting disk is surrounded and blocked during initial cutting, reduces the splash of slag, and cools and dust reduction of the cutting disk and cutting parts during cutting.
It effectively reduces the splashing of slag and sand during initial cutting, improves the slag arrest and protection effect, and reduces the risk of injury of personnel; at the same time, through cooling and dust reduction treatment, environmental protection and the service life of the cutting disc are improved.
Smart Images

Figure CN222648550U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of municipal engineering, in particular to an edge cutting device for municipal road construction. Background Art
[0002] During the municipal road construction process, after the road surface is paved, it is necessary to trim the sides of the road surface to ensure that the sides of the road surface are regular and neat. When the trimming machine is trimming, it is easy to cause sand and soil to splash everywhere and injure people. In this regard, after searching, the announcement number CN208430415U discloses a trimming device for municipal road construction, including a bracket, a slide groove is opened on one side of the inner wall of the bracket, a first spring is fixedly connected to the bottom of the inner wall of the bracket, the end of the first spring away from the bracket is fixedly connected to a box, the bottom of the inner wall of the box is fixedly connected to a motor, one side of the motor is rotatably connected to a rotating shaft through an output shaft, the end of the rotating shaft away from the motor penetrates the box and extends to the outside of the box, the end of the rotating shaft located outside the box is fixedly connected to a tool, the upper end of the outer wall of the box away from the bracket is fixedly connected to a protective shell through a fixing plate, and the inner surface of the protective shell is fixedly connected to a buffer layer.
[0003] The above technology uses a fixedly installed protective shell and its semi-circular style to shield the upper part of the tool and prevent sand from splashing everywhere. However, this method of only protecting the upper part has the following shortcomings when used: 1. Since the lower part of the tool is exposed, there is a large distance between the ground and the protective shell during the initial cutting, and it is still easy for debris and sand to splash. In addition, the tool cannot be protected as a whole after use, and it is easy for people to accidentally touch the lower part of the tool and get injured. The slag blocking and protection effects are not ideal; 2. When cutting the edge of the road surface, high temperature damage and dust generation are inevitable. The cooling and dust reduction treatment cannot be performed as a whole during cutting, and the environmental protection is not ideal. In view of this, the present application proposes a cutting device for municipal road construction. Utility Model Content
[0004] The purpose of the utility model is to provide a trimming device for municipal road construction to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cutting device for municipal pavement construction, comprising a T-shaped vehicle body connecting seat, a T-shaped guide rod and a multi-stage electric push rod are fixedly installed on the top of the T-shaped vehicle body connecting seat, the extended end of the multi-stage electric push rod is fixedly connected with a transverse telescopic fine-adjustment component slidably sleeved on the T-shaped guide rod, the right side of the transverse telescopic fine-adjustment component is fixedly connected with a moving rod, the bottom end of the moving rod is fixedly connected with an L-shaped seat, a driving motor is fixedly installed on the top inner wall of the L-shaped seat, a cutting disc is fixedly installed on the extended end of the driving motor, the transverse telescopic fine-adjustment component is used for transversely fine-adjusting the position of the moving rod, so as to achieve transverse fine-adjustment of the position of the driving motor and the cutting disc, and is used to drive the moving rod to move up and down when the multi-stage electric push rod is started, the moving rod is used to drive the driving motor and the cutting disc to adjust up and down through the L-shaped seat, and the driving motor is used to drive the cutting disc to rotate to cut the municipal pavement;
[0006] The right side of the moving rod is fixedly connected with a self-weight enclosure assembly movably sleeved on the outside of the cutting disc, and the self-weight enclosure assembly is used to always fit the ground to surround and shield the debris generated at the cutting position during cutting, and is used to automatically surround and protect the cutting disc when it is raised after cutting;
[0007] A same spray dust reduction and cooling component is fixedly connected between the right side of the T-shaped body connecting seat and the bottom of the L-shaped seat. The spray dust reduction and cooling component is used to cool the cutting disc and reduce dust at the cutting position during cutting.
[0008] Preferably, the lateral telescopic fine-tuning assembly includes a rectangular tube fixedly connected to the protruding end of the multi-stage electric push rod, the left end of the rectangular tube is set as a blocking structure, the rectangular tube sliding sleeve is set on the T-shaped guide rod, the sliding sleeve inside the rectangular tube is provided with a rectangular rod, the right end of the rectangular rod is fixedly connected to the left top of the moving rod, and the top of the rectangular tube is fixedly installed with a first electric push rod whose protruding end is fixedly connected to the left side of the moving rod.
[0009] Preferably, the self-weight type enclosure assembly includes a T-shaped slide rail fixedly mounted on the right side of the moving rod, a slider slidably mounted on the T-shaped slide rail and movably contacting the top of the L-shaped seat, a guard shield with an opening at the bottom is fixedly connected to the right side of the slider, the guard shield is movably mounted on the cutting disk and has no contact with the outer side of the cutting disk, and a plurality of balls are movably embedded on both sides of the bottom of the guard shield.
[0010] Preferably, the spray dust reduction and cooling component includes a water tank fixedly mounted on the right side of the T-shaped vehicle body connecting seat, a water pump is fixedly mounted on the left bottom of the water tank, the water inlet of the water pump extends into the water tank, the water outlet of the water pump is connected and fixedly connected to a hose, the bottom end of the hose is connected and fixedly connected to a spray head which is inclined and fixedly mounted on the L-shaped seat, and the spray head cooperates with the cutting disc.
[0011] Preferably, the left side of the T-shaped vehicle body connecting seat is rectangular and has four bolt installation holes.
[0012] Preferably, a rectangular through hole with an open bottom is provided on the left inner wall of the protective cover, and the output shaft of the driving motor is located in the rectangular through hole and does not contact the inner wall of the rectangular through hole.
[0013] Preferably, the spray head is oriented to be aligned with the inner side of the rectangular through hole.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] 1. This is a municipal road construction trimming device. Through the cooperation of the transverse telescopic fine-tuning assembly, the moving rod, the driving motor and the cutting disc, the cutting disc can be fine-tuned transversely. By using the transverse fine-tuning method of the cutting disc, after being installed on the external vehicle body, the number of times that personnel adjust the external vehicle can be reduced;
[0016] 2. This is a cutting device for municipal road construction. Through the cooperation of the T-shaped vehicle body connecting seat, multi-stage electric push rod, T-shaped guide rod, lateral telescopic fine-tuning component, moving rod, driving motor and cutting disc, the cutting disc can be driven to rotate and move downward to cut the road surface;
[0017] 3. This is a municipal road construction edge cutting device, which can wrap the front of the cutting disc before cutting through the cooperation of the provided moving rod and the self-weight enclosure assembly, and then the cutting disc can be moved out separately for cutting after it is close to the ground. It can surround and shield the bottom of the cutting disc during the initial cutting to prevent slag splashing. Compared with the existing method of having a large space at the bottom during the initial cutting, it effectively reduces the phenomenon of large amounts of slag splashing out to injure personnel, improves the slag blocking and protection effects, and thus improves the safety of use; and it can automatically store and surround the cutting disc for protection when it is raised after use, reducing the phenomenon of large-area exposure of its lower half, thereby reducing the risk of personnel accidentally touching the cutting disc and causing injury, and further improving safety;
[0018] 4. This is a municipal road construction trimming device, through the spray dust reduction and cooling components, L-shaped seat and rectangular through hole, which can spray dust on the cutting part and cool the cutting disc during cutting, reduce dust and high temperature damage of the cutting disc, and improve environmental protection and the service life of the cutting disc.
[0019] The utility model is provided with a series of structures, which is convenient for driving the cutting disc to rotate and move downward to perform the edge trimming work on the road surface. It is convenient to always stay close to the road surface during cutting to surround and shield the cutting position to prevent slag splashing, reduce the phenomenon of large amounts of slag splashing out to injure people, improve the slag blocking and protection effects, and is convenient for automatically storing and surrounding the cutting disc for protection when the cutting disc is raised after cutting, reducing the risk of people accidentally touching the cutting disc and causing injuries, improving safety in use, and is convenient for spraying dust reduction on the cutting part and cooling the cutting disc during cutting, thereby improving environmental protection and the service life of the cutting disc. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic structural diagram of a trimming device for municipal road construction proposed by the utility model;
[0021] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of ;
[0022] Figure 3 The utility model is a schematic diagram of the three-dimensional structure of a guard shield and a ball connecting piece of an edge cutting device for municipal road construction proposed by the utility model.
[0023] In the figure: 100, T-shaped vehicle body connecting seat; 1, T-shaped guide rod; 2, multi-stage electric push rod; 3, rectangular tube; 4, first electric push rod; 5, rectangular rod; 6, moving rod; 7, shield; 701, rectangular through hole; 8, L-shaped seat; 9, driving motor; 10, cutting disc; 11, ball bearing; 12, water tank; 13, water pump; 14, hose; 15, spray head; 16, slider; 17, T-shaped slide rail. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] like Figures 1 to 3 As shown, a municipal road construction trimming device proposed in this embodiment includes a T-shaped vehicle body connection seat 100. The left side of the T-shaped vehicle body connection seat 100 is rectangular and has four bolt installation through holes, which can be used for personnel to use external bolts to fix the T-shaped vehicle body connection seat 100 to the external vehicle body. A T-shaped guide rod 1 and a multi-stage electric push rod 2 are fixedly installed on the top of the T-shaped vehicle body connection seat 100. The extended end of the multi-stage electric push rod 2 is fixedly connected to a transverse telescopic fine-adjustment component slidably sleeved on the T-shaped guide rod 1. The right side of the transverse telescopic fine-adjustment component is fixedly connected to a movable The movable rod 6 is fixedly connected to an L-shaped seat 8 at the bottom end of the movable rod 6, a driving motor 9 is fixedly installed on the top inner wall of the L-shaped seat 8, and a cutting disc 10 is fixedly installed on the extended end of the driving motor 9. The transverse telescopic fine-tuning component is used to transversely fine-tune the position of the movable rod 6, so as to achieve transverse fine-tuning of the positions of the driving motor 9 and the cutting disc 10, and is used to drive the movable rod 6 to move up and down when the multi-stage electric push rod 2 is started, and the movable rod 6 is used to drive the driving motor 9 and the cutting disc 10 to adjust up and down through the L-shaped seat 8, and the driving motor 9 is used to drive the cutting disc 10 to rotate to cut the municipal road surface;
[0026] The right side of the movable rod 6 is fixedly connected with a self-weight enclosure assembly movably mounted on the outside of the cutting disk 10. The self-weight enclosure assembly is used to surround and shield the debris generated at the cutting position at all times in close contact with the ground during cutting, and is used to automatically surround and protect the cutting disk 10 when it is raised after cutting; the same spray dust reduction and cooling assembly is fixedly connected between the right side of the T-shaped body connecting seat 100 and the bottom of the L-shaped seat 8. The spray dust reduction and cooling assembly is used to cool the cutting disk 10 and reduce dust at the cutting position during cutting.
[0027] The lateral telescopic fine-tuning component includes a rectangular tube 3 fixedly connected to the protruding end of the multi-stage electric push rod 2, the left end of the rectangular tube 3 is set as a blocking structure, and the rectangular tube 3 is slidably sleeved on the T-shaped guide rod 1, wherein a vertical guide hole is opened on the left side of the top of the rectangular tube 3 for sliding sleeve with the outer side of the T-shaped guide rod 1, which plays the effect of guiding the vertical sliding of the rectangular tube 3, a rectangular rod 5 is slidably sleeved in the rectangular tube 3, the right end of the rectangular rod 5 is fixedly connected to the left top of the moving rod 6, and a first electric push rod 4 is fixedly installed on the top of the rectangular tube 3 with the protruding end fixedly connected to the left side of the moving rod 6; the set rectangular tube 3, rectangular rod 5 and first electric push rod 4 cooperate, and the moving rod 6 is driven by the first electric push rod 4 to move horizontally to the right and left, and the moving rod 6 drives the rectangular rod 5 to slide horizontally in the rectangular tube 3 for horizontal guiding work, so as to achieve the effect of fine-tuning the moving rod 6 to the right and left horizontally, and the multi-stage electric push rod 2 is used to drive the moving rod 6 to move up and down through the rectangular tube 3 and the rectangular rod 5 in turn, so as to achieve the effect of further driving the driving motor 9 and the cutting disc 10 to adjust up and down through the L-shaped seat 8.
[0028] Furthermore, the self-weight enclosure assembly includes a T-shaped slide rail 17 fixedly mounted on the right side of the moving rod 6, and a slider 16 movably mounted on the T-shaped slide rail 17 and in contact with the top of the L-shaped seat 8, wherein a T-shaped slide groove with openings at the top and bottom is opened on the left side of the slider 16, and the T-shaped slide groove is slidably connected to the T-shaped slide rail 17, which plays an effect of guiding the vertical sliding of the slider 16, and a guard shield 7 with an opening at the bottom is fixedly connected to the right side of the slider 16, and the guard shield 7 is movably sleeved on the cutting disk 10 and does not contact the outer side of the cutting disk 10, and a plurality of balls 11 are movably embedded on both sides of the bottom of the guard shield 7; the T-shaped slide rail 17, the slider 16, the guard shield 7 and the balls 11 cooperate with each other, and when the moving rod 6 moves downward, the guard shield 7 is driven When the L-shaped seat 8 moves downward, under the action of its own gravity, the protective cover 7 also moves downward and drives the ball bearings 11 to contact the municipal road surface and be blocked and restricted by it. At this time, the protective cover 7 close to the road surface through the ball bearings 11 is used to block the debris generated during cutting, thereby reducing the phenomenon of large amounts of debris splashing out and injuring personnel, thereby improving safety in use. When the moving rod 6 drives the L-shaped seat 8 to rise, the L-shaped seat 8 first drives the cutting disc 10 to move upward and be stored in the protective cover 7 through the driving motor 9. The L-shaped seat 8 that continues to move upward moves upward by squeezing the driving slider 16, so that the protective cover 7 is driven upward as a whole after being stored, so that the cutting disc 10 is automatically stored and surrounded for protection when it rises after cutting, thereby reducing the risk of people accidentally touching the cutting disc 10 and being injured.
[0029] Furthermore, the spray dust reduction and cooling component includes a water tank 12 fixedly mounted on the right side of the T-shaped vehicle body connecting seat 100, wherein a water supply pipe is connected and fixed to the top left side of the water tank 12, a water pump 13 is fixedly mounted on the left bottom of the water tank 12, a water inlet of the water pump 13 extends into the water tank 12, a water outlet of the water pump 13 is connected and fixed to a hose 14, the bottom end of the hose 14 is connected and fixed to a spray head 15 which is inclined and fixedly mounted on the L-shaped seat 8, the spray head 15 cooperates with the cutting disc 10, and a bottom is opened on the left inner wall of the protective cover 7 An opening is provided in the rectangular through hole 701, and the output shaft of the driving motor 9 is located in the rectangular through hole 701 and does not contact the inner wall of the rectangular through hole 701, and the direction of the spray head 15 is aligned with the inner side of the rectangular through hole 701; the water tank 12, the water pump 13, the hose 14 and the spray head 15 are provided to cooperate, and the water in the water tank 12 is extracted by the water pump 13 and pumped to the spray head 15 through the hose 14, and the water is sprayed to the cutting part through the spray head 15 to reduce dust and cool the cutting disc 10, thereby improving environmental protection and the service life of the cutting disc 10.
[0030] The method of using this embodiment is as follows: a person fixes the T-shaped vehicle body connecting seat 100 on the outside of the external vehicle body through external bolts, and uses the external vehicle body to drive the device to move on the side of the municipal road surface. When trimming the road surface, firstly, the lateral position of the cutting disc 10 is fine-tuned according to the position of the trimming required. When adjusting, the first electric push rod 4 is started in the positive direction to drive the moving rod 6 to move rightward, and the moving rod 6 drives the rectangular rod 5 to slide laterally in the rectangular tube 3 to perform the transverse guide work. The moving rod 6 drives the cutting disc 10 to move rightward and adjusts in turn through the L-shaped seat 8 and the driving motor 9, so as to achieve the effect of lateral fine-tuning of the cutting disc 10. By using the method that the cutting disc 10 can be fine-tuned laterally, the number of times that personnel adjust the external vehicle is reduced;
[0031] During cutting, the drive motor 9, the water pump 13 and the multi-stage electric push rod 2 are started in reverse. When the drive motor 9 is started, the cutting disc 10 is driven to rotate. When the multi-stage electric push rod 2 is started in reverse, the rectangular tube 3 is driven to slide downward on the T-shaped guide rod 1. The rectangular tube 3 drives the L-shaped seat 8 to move downward through the rectangular rod 5 and the moving rod 6 in turn. The L-shaped seat 8 drives the cutting disc 10 to move downward through the drive motor 9. At this time, the cutting disc 10 is in a state of moving downward and rotating. When the L-shaped seat 8 moves downward, it lowers the supporting position of the slider 16. At this time, under the action of its own gravity, the guard 7 moves downward and drives the ball 11 to gradually move downward until it contacts the municipal road surface. At this time The shield 7 is blocked and restricted by the road surface and no longer moves downward. At this time, the cutting disc 10 that continues to move downward and rotate gradually moves downward and cuts the road surface. At this time, the shield 7 close to the road surface through the ball 11 blocks the debris generated during cutting. The shield 7 is used to fully wrap the cutting disc 10, and the cutting disc 10 is moved out for cutting alone after being close to the ground. The shield can be surrounded and shielded to prevent the debris from splashing when the bottom of the cutting disc 10 is initially cut. Compared with the existing method of having a large space at the bottom during the initial cutting, the phenomenon of large amount of debris splashing out to injure personnel is effectively reduced, and the slag blocking and protection effects are improved, thereby improving the safety of use.
[0032] When the water pump 13 is started, water in the water tank 12 is extracted and pumped into the spray head 15 through the hose 14. The water is sprayed out through the spray head 15, passes through the rectangular through hole 701 and sprayed to the cutting position, so as to achieve the effect of dust reduction on the cutting part and cooling the cutting disc 10, reduce the phenomenon of dust and high temperature damage of the cutting disc 10, improve environmental protection and the service life of the cutting disc 10; when the external vehicle body moves, it will drive the device to move along the road surface, at this time the cutting disc 10 moves and cuts the roadside, at this time the protective cover 7 moves on the road surface through a plurality of balls 11, so as to always be in a protective state during cutting;
[0033] After use, the multi-stage electric push rod 2 is started in the positive direction to drive the rectangular tube 3 to move back upward. The rectangular tube 3 drives the moving rod 6 to move back upward through the rectangular rod 5. The moving rod 6 drives the L-shaped seat 8 to rise. The L-shaped seat 8 first drives the cutting disk 10 to move up and be stored in the protective cover 7 through the driving motor 9. When the L-shaped seat 8 continues to move upward and contacts with the bottom of the slider 16, it starts to squeeze the slider 16 to move upward. At this time, the slider 16 drives the protective cover 7 and the stored cutting disk 10 to move upward as a whole, so as to achieve the effect of automatically storing and surrounding the cutting disk 10 when it is raised after cutting, reducing the phenomenon of large-scale exposure of the lower half, thereby reducing the risk of people accidentally touching the cutting disk 10 and causing injury, thereby further improving safety.
[0034] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A trimming device for municipal road construction, comprising a T-shaped vehicle body connection seat (100), characterized in that: A T-shaped guide rod (1) and a multi-stage electric push rod (2) are fixedly mounted on the top of the T-shaped vehicle body connecting seat (100); a transverse telescopic fine-adjustment assembly slidably sleeved on the T-shaped guide rod (1) is fixedly connected to the protruding end of the multi-stage electric push rod (2); a moving rod (6) is fixedly connected to the right side of the transverse telescopic fine-adjustment assembly; the bottom end of the moving rod (6) is fixedly connected to an L-shaped seat (8); a driving motor (9) is fixedly mounted on the top inner wall of the L-shaped seat (8); and a cutting disc (10) is fixedly mounted on the protruding end of the driving motor (9); The right side of the moving rod (6) is fixedly connected to a self-weight enclosure assembly movably sleeved on the outside of the cutting disc (10); A same spray dust reduction and temperature reduction component is fixedly connected between the right side of the T-shaped vehicle body connecting seat (100) and the bottom of the L-shaped seat (8).
2. The municipal road construction edge trimming device according to claim 1, characterized in that: The transverse telescopic fine-tuning assembly comprises a rectangular tube (3) fixedly connected to the protruding end of the multi-stage electric push rod (2), the left end of the rectangular tube (3) being arranged as a blocking structure, the rectangular tube (3) being slidably sleeved on the T-shaped guide rod (1), a rectangular rod (5) being slidably sleeved inside the rectangular tube (3), the right end of the rectangular rod (5) being fixedly connected to the left top of the moving rod (6), and a first electric push rod (4) having a protruding end fixedly connected to the left side of the moving rod (6) being fixedly mounted on the top of the rectangular tube (3).
3. A trimming device for municipal road construction according to claim 2, characterized in that: The self-weight enclosure assembly comprises a T-shaped slide rail (17) fixedly mounted on the right side of the moving rod (6), a slider (16) slidably mounted on the T-shaped slide rail (17) and in movably contact with the top of the L-shaped seat (8), a guard shield (7) with an opening at the bottom is fixedly connected to the right side of the slider (16), the guard shield (7) is movably mounted on the cutting disc (10) and does not contact the outer side of the cutting disc (10), and a plurality of balls (11) are movably embedded on both sides of the bottom of the guard shield (7).
4. The municipal road construction edge trimming device according to claim 3, characterized in that: The spray dust reduction and cooling assembly comprises a water tank (12) fixedly mounted on the right side of a T-shaped vehicle body connection seat (100); a water pump (13) is fixedly mounted on the left bottom of the water tank (12); a water inlet of the water pump (13) extends into the water tank (12); a water outlet of the water pump (13) is connected to and fixed with a hose (14); the bottom end of the hose (14) is connected to and fixed with a spray head (15) which is arranged obliquely and fixedly mounted on the L-shaped seat (8); the spray head (15) cooperates with the cutting disc (10).
5. The municipal road construction edge trimming device according to claim 1, characterized in that: The left side of the T-shaped vehicle body connecting seat (100) is provided with four bolt installation through holes in a rectangular shape.
6. The municipal road construction edge trimming device according to claim 4, characterized in that: A rectangular through hole (701) with an open bottom is provided on the left inner wall of the shield (7), and the output shaft of the drive motor (9) is located in the rectangular through hole (701) and does not contact the inner wall of the rectangular through hole (701).
7. The municipal road construction edge trimming device according to claim 6, characterized in that: The spray head (15) is oriented in an aligned direction with the inner side of the rectangular through hole (701).
Citation Information
Patent Citations
Side cut device is used in construction of municipal administration road surface
CN208430415U