Building mortar spraying equipment for constructional engineering and operation method thereof

By designing building mortar spraying equipment equipped with cleaning pulping mechanisms and cleaning rollers, the problems of wall cleaning before spraying and mortar recovery after spraying are solved, achieving a more efficient spraying process and better wall flatness.

CN120100170AActive Publication Date: 2025-06-06山西金信达建筑有限公司
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Patent Information

Application Number
CN202510599194.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-10
Publication Date
2025-06-06
Estimated Expiration
2045-05-10

AI Technical Summary

Technical Problem

The existing building mortar spraying equipment cannot clean the walls before spraying, which increases the burden and cost of workers. At the same time, the excess dripping mortar cannot be recovered after spraying, resulting in waste.

Method used

A construction mortar spraying equipment for construction projects is designed, equipped with a cleaning pulp scraping mechanism and cleaning rollers, which can clean the wall and mortar recycling. The equipment realizes horizontal and vertical movement of the bracket by driving the sprocket transmission assembly and threaded rod by moving the motor, and combines the cleaning gears and meshing racks to realize the rotation of the cleaning roller and wall cleaning.

Benefits of technology

It effectively solves the problems of wall cleaning before spraying and mortar recycling after spraying, reduces the burden and cost of workers, and improves the efficiency of spraying and wall flatness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses building mortar spraying equipment for building engineering and an operation method of the building mortar spraying equipment, and relates to the technical field of building construction equipment.The building mortar spraying equipment comprises a cleaning and mortar scraping mechanism and a cleaning roller installed on one side of the cleaning and mortar scraping mechanism, and a mortar spraying mechanism is arranged at the bottom of the cleaning and mortar scraping mechanism; the top of one side of the mortar spraying mechanism is fixedly provided with a lifting support, the cleaning and mortar scraping mechanism comprises a horizontal support, vertical supports are symmetrically installed on one side of the top of the horizontal support, the interior of the horizontal support is slidably connected with a mortar recycling box, and one side of the horizontal support is fixedly provided with a first motor cover; a moving motor is fixedly installed on one side of the interior of the first motor cover, a collecting scraper is moved to the wall side, mortar is conveniently collected, the characteristic that cleaning gears at the two ends of a cleaning roller are connected with meshing racks in a meshed mode is utilized, rotation of the cleaning gears is achieved, the cleaning gears drive the cleaning roller to rotate, and the wall face needing mortar spraying can be cleaned; and the guniting effect is improved.
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Description

Technical Field

[0001] The invention relates to the technical field of building construction equipment, in particular to building mortar spraying equipment for construction engineering and an operating method thereof. Background Art

[0002] Building mortar is a mortar that bonds masonry materials (bricks, stones, blocks) into a whole. It is composed of inorganic cementitious materials, fine aggregates and water, and sometimes certain admixtures. Compressive strength is often used as the most important technical performance indicator. In order to ensure the smooth completion of construction projects, many machines have replaced manual labor. After the building is built, the inner and outer walls of the entire building need to be plastered with mortar to ensure the flatness of the entire wall. In the past, wall mortar plastering was mainly carried out manually, which required a lot of labor and the plastering speed was relatively slow. In order to solve this problem, mortar spraying equipment is usually used.

[0003] Publication No. CN114941436B discloses a construction mortar spraying device for construction engineering. Through the coordinated arrangement of two stirring rings, a plurality of stirring blades and two reciprocating components, a plurality of stirring blades on the two stirring rings are rotated to form a reciprocating motion in opposite directions. The plurality of stirring blades on the two stirring rings rotate and stir the mortar while driving the upper and lower mortars to continuously converge and collide toward the middle of the stirring box, thereby breaking the stratification that occurs during the mortar stirring process, so that the mortar densities at different positions of the stirring mechanism tend to be the same, and the quality of the mortar is improved. Through the arrangement of the ball groove and the universal ball, the friction between the slider and the bottom of the first annular groove is reduced, so that the stirring ring moves up and down more smoothly, thereby making the stirring operation smoother. Through the arrangement of the storage box, the mortar stirred in the mixing box can be first transported to the storage box, so that the mixing operation can be continuously carried out in the mixing box, and the spraying operation can be ensured to be carried out continuously. However, the above patent still has the following problems in actual use: Although the construction mortar spraying equipment used in the construction project can fully mix the mortar raw materials, it cannot clean the wall surface that needs to be sprayed before spraying the mortar, and workers are required to clean it in advance, which not only increases the burden on the workers, but also increases the cost of spraying. After spraying, the excess mortar dripping on the wall cannot be recovered, resulting in the phenomenon of mortar dripping and waste, which is not conducive to saving the cost of spraying.

[0004] Therefore, a construction mortar spraying device and an operating method thereof for construction engineering are proposed to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a construction mortar spraying equipment and an operating method thereof for construction projects, so as to solve the problem proposed in the above-mentioned background technology that the wall surface to be sprayed cannot be cleaned before the mortar is sprayed, and workers are required to clean it in advance, which not only increases the burden on the workers, but also increases the cost of spraying. After spraying, the excess mortar dripping on the wall surface cannot be recovered, thereby causing the phenomenon of mortar dripping and waste, which is not conducive to saving the cost of spraying.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a construction mortar spraying device for construction engineering and an operation method thereof, comprising a cleaning scraping mechanism and a cleaning roller installed on one side of the cleaning scraping mechanism; A mortar spraying mechanism is provided at the bottom of the cleaning and scraping mechanism, and a lifting bracket is fixedly installed on the top of one side of the mortar spraying mechanism; Also includes: The cleaning and scraping mechanism comprises a horizontal bracket, a vertical bracket is symmetrically mounted on one side of the top of the horizontal bracket, and a mortar recovery box is slidably connected inside the horizontal bracket; Wherein, a first motor cover is fixedly installed on one side of the horizontal bracket, a mobile motor is fixedly installed on one side inside the first motor cover, and an output end of the mobile motor is fixedly connected to a first sprocket transmission assembly; Among them, a horizontal threaded rod is symmetrically connected to one side of the first sprocket transmission assembly, and the outer sides of the two horizontal threaded rods are threadedly connected to horizontal threaded sleeves. The tops of the two horizontal threaded sleeves are fixedly installed with first rotating brackets, and a support frame is rotatably connected between the two first rotating brackets.

[0007] Preferably, the end plates of the two horizontal threaded rods are fixedly installed with a first bevel gear transmission assembly, the tops of the two first bevel gear transmission assemblies are fixedly installed with a vertical threaded rod, the outer sides of the two vertical threaded rods are threadedly connected with a vertical threaded sleeve, a cleaning bracket is fixedly installed between the two vertical threaded sleeves, and the cleaning roller is arranged on the inner side of the cleaning bracket.

[0008] By adopting the above technical scheme, the fallen mortar is collected by utilizing the mortar recovery box inside the horizontal bracket, and at the same time, the mobile motor is started to drive the first sprocket transmission assembly and the horizontal threaded rod to rotate, so that the horizontal threaded sleeve drives the first rotating bracket and the support frame to move horizontally, and at the same time, the horizontal threaded rod drives the first bevel gear transmission assembly and the vertical threaded rod to rotate, so that the vertical threaded sleeve drives the second rotating bracket and the support frame to move vertically, thereby realizing the flipping function of the support frame.

[0009] Preferably, cleaning gears are fixedly installed at both ends of the cleaning roller, and the cleaning gears are rotatably connected to the cleaning bracket, one side of the two cleaning gears are meshingly connected with a meshing rack, and the meshing rack is fixedly installed on the outer side of the vertical bracket, and a second rotating bracket is fixedly installed on the outer side of the two vertical threaded sleeves, and the second rotating bracket is rotatably connected to the supporting frame, and a first supporting spring is fixedly installed on one side of the top of the two vertical brackets, and a first spirit level is fixedly installed on the end of the first spirit level, and a first supporting block is fixedly installed on the end of the first spirit level.

[0010] By adopting the above technical solution, the collecting scraper is moved to the wall to facilitate the collection of mortar. The cleaning bracket and the cleaning roller are driven to move up and down while the vertical threaded sleeve is lifted and lowered. By utilizing the characteristics of the meshing connection between the cleaning gears at both ends of the cleaning roller and the meshing rack, the cleaning gear can be rotated, and the cleaning gear drives the cleaning roller to rotate, so that the wall surface that needs to be sprayed can be cleaned, and the effect of spraying can be improved. The flatness of the wall can be detected by the first support spring and the first level at the top of the vertical bracket, and the spraying conveyor vehicle can be leveled at the same time, so as to judge whether the ground is flat.

[0011] Preferably, a second motor cover is fixedly installed on the top of the support frame, a reciprocating motor is fixedly installed on an inner side of the second motor cover, an output end of the reciprocating motor is fixedly connected to a second sprocket transmission assembly, a reciprocating threaded rod is symmetrically connected to the bottom of the second sprocket transmission assembly, the outer sides of the two reciprocating threaded rods are threadedly connected to reciprocating threaded sleeves, and a reciprocating connecting plate is fixedly installed on one side of the bottom of the support frame and the outer side of the reciprocating threaded sleeve.

[0012] By adopting the above technical solution, the reciprocating motor is started to drive the second sprocket transmission assembly and the reciprocating threaded rod to rotate, so that the reciprocating threaded sleeve drives the reciprocating connecting plate to move up and down.

[0013] Preferably, the bottom of the reciprocating connecting plate is symmetrically rotatably connected with an adjusting knob, the top of the adjusting knob is fixedly installed with an adjusting threaded rod, the outer side of the adjusting threaded rod is threadedly connected with an adjusting threaded sleeve, the outer side of the adjusting threaded sleeve is rotatably connected with a first adjusting rotating rod, the top of the first adjusting rotating rod is rotatably connected with a limiting rotating frame, a limiting sliding rod is fixedly installed on one side of the inner side of the limiting rotating frame, the outer side of the limiting sliding rod is slidably connected to a limiting sliding sleeve, a limiting spring is fixedly installed on the bottom of the limiting sliding sleeve, the outer side of the limiting sliding sleeve is rotatably connected with a second adjusting rotating rod, and the end of the second adjusting rotating rod is rotatably connected to a collecting scraper.

[0014] By adopting the above technical solution, the adjusting threaded rod is driven to rotate by turning the adjusting knob, so that the adjusting threaded sleeve drives the first adjusting rotating rod to move up and down, and at the same time, the limiting rotating frame can be lifted up, so as to facilitate the adjustment of the height of the collecting scraper, so that the collecting scraper fits the wall surface, which is convenient for collecting mortar. Through the characteristics of the sliding connection between the limiting sliding rod and the limiting sliding sleeve, and under the action of the limiting spring, the second adjusting rotating rod and the collecting scraper can be rotated, which is convenient for scraping the wall surface and improving the flatness of the wall surface after spraying.

[0015] Preferably, the mortar spraying mechanism includes a spraying and conveying vehicle, a second supporting spring is symmetrically installed on one side of the spraying and conveying vehicle, a second spirit level is fixedly installed on the end of the second supporting spring, a second supporting block is fixedly installed on the end of the second spirit level, an installation groove is opened on the inner side of the top of the spraying and conveying vehicle, a trolley handle is rotatably connected to one side of the top of the spraying and conveying vehicle, a mixing box is fixedly installed on the side of the spraying and conveying vehicle close to the trolley handle, and a first mixing motor is fixedly installed on the top of the mixing box.

[0016] By adopting the above technical solution, the second support spring and the second level meter are used to perform a secondary inspection of the flatness of the spraying and conveying vehicle and the wall surface.

[0017] Preferably, the output end of the first mixing motor is fixedly connected to a mixing turbine, a fixed bracket is fixedly installed on the top inner side of the mixing box, a second mixing motor is fixedly installed at the top center position of the fixed bracket, and the output end of the second mixing motor is fixedly connected to a mixing auger, mixing brackets are fixedly installed on the top and middle of the mixing auger, vertical cleaning scrapers are fixedly installed on the ends of the two mixing brackets, vertical mixing rods are fixedly installed in the middle of the two mixing brackets, a spiral cleaning scraper is fixedly installed on the bottom of the bottom mixing bracket, and the mixing auger is rotationally connected to the mixing turbine.

[0018] By adopting the above technical scheme, the raw materials used for spraying are placed in a mixing box, the first mixing motor is started to drive the mixing turbine to rotate, and the spiral force is generated by the mixing turbine to preliminarily mix the raw materials. At the same time, the second mixing motor is started to drive the mixing auger and the mixing bracket to rotate, and the secondary anti-gluing of the raw materials is carried out through the vertical mixing rod and in cooperation with the mixing auger, thereby further improving the mixing effect of the mortar raw materials, and the inner wall of the mixing box can be cleaned by the vertical cleaning scraper and the spiral cleaning scraper to avoid the phenomenon of residual waste of raw materials.

[0019] Preferably, a delivery pump is provided on one side of the bottom of the mixing box, the output end of the delivery pump is fixedly connected to a delivery pipe, the lifting bracket is fixedly installed on the top of the spraying and conveying vehicle, a lifting motor is fixedly installed on one side of the top of the lifting bracket, the output end of the lifting motor is fixedly connected to a lifting rotating rod, second bevel gear transmission assemblies are fixedly installed on both ends of the lifting rotating rod, lifting threaded rods are fixedly installed on the bottoms of the two second bevel gear transmission assemblies, and lifting threaded sleeves are threadedly connected to the outer sides of the two lifting threaded rods.

[0020] By adopting the above technical solution, the raw materials can be transported by the delivery pump and delivered to the mortar nozzle through the delivery pipe, so as to spray the mortar. By starting the lifting motor to drive the lifting rotating rod to rotate, the lifting threaded rod is rotated under the action of the second bevel gear transmission assembly, and at the same time, the lifting threaded sleeve drives the translation bracket to move up and down, so that the height adjustment of the mortar nozzle can be achieved.

[0021] Preferably, a translation bracket is fixedly installed between the two lifting threaded sleeves, a translation motor is fixedly installed on one side of the bottom of the translation bracket, the output end of the translation motor is fixedly connected to the third sprocket transmission assembly, a translation threaded rod is fixedly installed on one side of the inner part of the third sprocket transmission assembly, the outer side of the translation threaded rod is threadedly connected to the translation threaded sleeve, a nozzle bracket is fixedly installed on the top of the translation threaded sleeve, an adjusting motor is fixedly installed on one side of the nozzle bracket, the output end of the adjusting motor is fixedly connected to a mortar nozzle, and the mortar nozzle is fixedly connected to the delivery pipe.

[0022] By adopting the above technical solution, the translation motor is started to drive the third sprocket transmission assembly and the translation threaded rod to rotate, so that the translation threaded sleeve drives the nozzle bracket to move longitudinally, thereby realizing the longitudinal adjustment of the mortar nozzle. At the same time, the adjustment motor is started to drive the mortar nozzle to rotate, so that the vertical angle of the mortar nozzle can be adjusted, which is convenient for all-round spraying of the wall.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: the construction mortar spraying equipment and the operation method thereof for construction engineering move the collecting scraper to the wall to facilitate the collection of mortar, and utilize the characteristics of the cleaning gears at both ends of the cleaning roller being meshed and connected with the meshing rack to realize the rotation of the cleaning gear, so that the cleaning gear drives the cleaning roller to rotate, and the wall surface that needs to be sprayed can be cleaned, thereby improving the effect of spraying, and the inner wall of the mixing box can be cleaned by the vertical cleaning scraper and the spiral cleaning scraper to avoid the phenomenon of residual waste of raw materials. The specific contents are as follows: 1. By setting up a cleaning scraper mechanism, not only can the mortar recovery box inside the horizontal bracket be utilized to collect the fallen mortar, but also the moving motor is started to drive the first sprocket transmission assembly and the horizontal threaded rod to rotate, so that the horizontal threaded sleeve drives the first rotating bracket and the supporting frame to move horizontally, and at the same time, the horizontal threaded rod drives the first bevel gear transmission assembly and the vertical threaded rod to rotate, so that the vertical threaded sleeve drives the second rotating bracket and the supporting frame to move vertically, so as to realize the flipping function of the supporting frame, move the collecting scraper to the wall, so as to facilitate the collection of mortar, and drive the cleaning bracket and the cleaning roller to move up and down while the vertical threaded sleeve moves up and down, and utilizes the characteristics of the meshing connection between the cleaning gears at both ends of the cleaning roller and the meshing rack to realize the rotation of the cleaning gear, so that the cleaning gear drives the cleaning roller to rotate, and the wall surface that needs to be sprayed can be cleaned. , improve the effect of spraying, detect the flatness of the wall through the first support spring and the first level at the top of the vertical bracket, and at the same time, be able to level the spraying and conveying vehicle, so as to judge whether the ground is flat, and start the reciprocating motor to drive the second sprocket transmission assembly and the reciprocating threaded rod to rotate, so that the reciprocating threaded sleeve drives the reciprocating connecting plate to move up and down, and at the same time, the adjusting threaded rod is driven to rotate by rotating the adjusting knob, so that the adjusting threaded sleeve drives the first adjusting rotating rod to move up and down, and the limit rotating frame can be lifted up, so as to adjust the height of the collecting scraper plate, so that the collecting scraper plate fits the wall surface, and is convenient for collecting mortar, and through the characteristics of the sliding connection between the limiting sliding rod and the limiting sliding sleeve, and under the action of the limiting spring, the second adjusting rotating rod and the collecting scraper plate can be rotated, so as to facilitate the scraping of the wall surface, and improve the flatness of the wall surface after spraying; 2. By setting up the mortar spraying mechanism, not only can the second supporting spring and the second level meter be used to perform secondary inspections on the spraying conveyor and the flatness of the wall, but also the raw materials used for spraying can be put into the mixing box, and the first mixing motor can be started to drive the mixing turbine to rotate, and the spiral force is generated by the mixing turbine to perform preliminary mixing of the raw materials. At the same time, the second mixing motor can be started to drive the mixing auger and the mixing bracket to rotate, and the secondary anti-glue of the raw materials can be performed through the vertical mixing rod and the mixing auger, so as to further improve the mixing effect of the mortar raw materials. The inner wall of the mixing box can be cleaned by the vertical cleaning scraper and the spiral cleaning scraper to avoid the phenomenon of residual and waste of raw materials. The raw materials can be transported through the delivery pump and delivered to the mortar nozzle through the delivery pipe, so as to spray the mortar. The lifting motor is started to drive the lifting and rotating rod to rotate. Under the action of the second bevel gear transmission assembly, the lifting threaded rod is rotated, and at the same time, the lifting threaded sleeve drives the translation bracket to move up and down, so as to realize the height adjustment of the mortar nozzle. At the same time, the translation motor is started to drive the third sprocket transmission assembly and the translation threaded rod to rotate, so that the translation thread sleeve drives the nozzle bracket to move longitudinally, so as to realize the longitudinal adjustment of the mortar nozzle. At the same time, the adjustment motor is started to drive the mortar nozzle to rotate, so as to adjust the vertical angle of the mortar nozzle, so as to facilitate all-round spraying of the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the cleaning and scraping mechanism of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the support frame in the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the cleaning roller in the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the reciprocating connecting plate in the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the collecting scraper in the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the cross section of the position-limiting rotating frame in the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the mortar spraying mechanism in the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the mixing box cross section in the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the lifting and rotating rod in the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the cross section of the translation bracket in the present invention.

[0025] In the figure: 1, cleaning scraper mechanism; 101, horizontal bracket; 102, vertical bracket; 103, mortar recovery box; 104, first motor cover; 105, mobile motor; 106, first sprocket transmission assembly; 107, horizontal threaded rod; 108, horizontal threaded sleeve; 109, first rotating bracket; 110, supporting frame; 111, first bevel gear transmission assembly; 112, vertical threaded rod; 113, vertical threaded sleeve; 114, cleaning bracket; 115, cleaning roller; 116, cleaning gear; 117, Meshing rack; 118, first support spring; 119, first level; 120, first support block; 121, second motor cover; 122, reciprocating motor; 123, second sprocket transmission assembly; 124, reciprocating threaded rod; 125, reciprocating threaded sleeve; 126, reciprocating connecting plate; 127, adjusting knob; 128, adjusting threaded rod; 129, adjusting threaded sleeve; 130, first adjusting rotating rod; 131, limit rotating frame; 132, limit sliding rod; 133, limit sliding sleeve; 134, limit spring ; 135, second adjusting rotating rod; 136, collecting scraper; 137, second rotating bracket; 2, mortar spraying mechanism; 201, spraying and conveying vehicle; 202, second supporting spring; 203, second level; 204, second supporting block; 205, mounting slot; 206, cart handle; 207, mixing box; 208, first mixing motor; 209, mixing turbine; 210, fixing bracket; 211, second mixing motor; 212, mixing auger; 213, mixing bracket; 214, vertical cleaning scraper; 215, vertical mixing rod; 216, spiral cleaning scraper; 217, delivery pump; 218, delivery pipe; 219, lifting bracket; 220, lifting motor; 221, lifting rotating rod; 222, second bevel gear transmission assembly; 223, lifting threaded rod; 224, lifting threaded sleeve; 225, translation bracket; 226, translation motor; 227, third sprocket transmission assembly; 228, translation threaded rod; 229, translation threaded sleeve; 230, nozzle bracket; 231, adjustment motor; 232, mortar nozzle. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 11The present invention provides a technical solution: a construction mortar spraying device for construction engineering and an operation method thereof, comprising a cleaning scraper mechanism 1, and a cleaning roller 115 installed on one side of the cleaning scraper mechanism 1, a mortar spraying mechanism 2 is arranged at the bottom of the cleaning scraper mechanism 1, and a lifting bracket 219 is fixedly installed on the top of one side of the mortar spraying mechanism 2, the cleaning scraper mechanism 1 comprises a horizontal bracket 101, a vertical bracket 102 is symmetrically installed on one side of the top of the horizontal bracket 101, a mortar recovery box 103 is slidably connected inside the horizontal bracket 101, wherein a first motor cover 104 is fixedly installed on one side of the horizontal bracket 101, and a moving motor 105 is fixedly installed on one side of the inside of the first motor cover 104 The output end of the mobile motor 105 is fixedly connected to the first sprocket transmission assembly 106, wherein a horizontal threaded rod 107 is symmetrically connected to one side of the first sprocket transmission assembly 106, the outer sides of the two horizontal threaded rods 107 are threadedly connected to horizontal threaded sleeves 108, the tops of the two horizontal threaded sleeves 108 are fixedly installed with first rotating brackets 109, and a supporting frame 110 is rotatably connected between the two first rotating brackets 109, the end plates of the two horizontal threaded rods 107 are fixedly installed with first bevel gear transmission assemblies 111, the tops of the two first bevel gear transmission assemblies 111 are fixedly installed with vertical threaded rods 112, and the outer sides of the two vertical threaded rods 112 are threadedly connected to vertical threaded A cleaning bracket 114 is fixedly installed between the two vertical threaded sleeves 113, a cleaning roller 115 is arranged on one side of the inner part of the cleaning bracket 114, cleaning gears 116 are fixedly installed on both ends of the cleaning roller 115, the cleaning gears 116 are rotatably connected with the cleaning bracket 114, and one side of the two cleaning gears 116 is meshedly connected with a meshing rack 117, and the mortar recovery box 103 inside the horizontal bracket 101 is used to collect the fallen mortar, and at the same time, the mobile motor 105 is started to drive the first sprocket transmission assembly 106 and the horizontal threaded rod 107 to rotate, so that the horizontal threaded sleeve 108 drives the first rotating bracket 109 and the support frame 110 to move horizontally, and at the same time, the horizontal threaded rod 107 drives the first bevel gear transmission assembly 111 and the vertical threaded rod 112 to rotate, so that the vertical threaded sleeve 113 drives the second rotating bracket 137 and the supporting frame 110 to move vertically, which can realize the flipping function of the supporting frame 110, and move the collecting scraper 136 to the wall to facilitate the collection of mortar. While the vertical threaded sleeve 113 is raised and lowered, it drives the cleaning bracket 114 and the cleaning roller 115 to rise and fall. By utilizing the characteristics of the cleaning gears 116 at both ends of the cleaning roller 115 being meshed with the meshing rack 117, the rotation of the cleaning gear 116 can be realized, and the cleaning gear 116 drives the cleaning roller 115 to rotate, so that the wall surface that needs to be sprayed can be cleaned, thereby improving the effect of spraying.

[0028] The meshing rack 117 is fixedly installed on the outer side of the vertical bracket 102, and the outer sides of the two vertical threaded sleeves 113 are fixedly installed with a second rotating bracket 137, and the second rotating bracket 137 is rotatably connected to the support frame 110. The top side of the two vertical brackets 102 is fixedly installed with a first support spring 118, and the end of the first support spring 118 is fixedly installed with a first level 119, and the end of the first level 119 is fixedly installed with a first support block 120. The top of the support frame 110 is fixedly installed with a second motor cover 121, and a reciprocating motor 122 is fixedly installed on one side of the inner side of the second motor cover 121. The output end of the reciprocating motor 122 is fixedly connected to a second sprocket transmission group The second sprocket transmission assembly 123 is symmetrically connected to a reciprocating threaded rod 124 at the bottom, and a reciprocating threaded sleeve 125 is threadedly connected to the outer side of the two reciprocating threaded rods 124. A reciprocating connecting plate 126 is fixedly installed on one side of the bottom of the support frame 110 and the outer side of the reciprocating threaded sleeve 125. The bottom of the reciprocating connecting plate 126 is symmetrically rotatably connected to an adjusting knob 127. An adjusting threaded rod 128 is fixedly installed on the top of the adjusting knob 127. An adjusting threaded rod 128 is threadedly connected to the outer side of the adjusting threaded rod 128. The outer side of the adjusting threaded sleeve 129 is rotatably connected to a first adjusting rotating rod 130. The top of the first adjusting rotating rod 130 is rotatably connected to the limited rotating frame 13 1. A limited sliding rod 132 is fixedly installed on one side of the inner side of the limited rotating frame 131, and a limited sliding sleeve 133 is slidably connected to the outer side of the limited sliding rod 132. A limited spring 134 is fixedly installed on the bottom of the limited sliding sleeve 133. The outer side of the limited sliding sleeve 133 is rotatably connected to a second adjusting rotating rod 135, and the end of the second adjusting rotating rod 135 is rotatably connected to a collecting scraper 136. The first support spring 118 and the first level 119 at the top of the vertical bracket 102 are used to detect the flatness of the wall surface, and the spraying and conveying vehicle 201 can be leveled at the same time, so as to judge whether the ground is flat. By starting the reciprocating motor 122 to drive the second sprocket transmission assembly 123 and the reciprocating The threaded rod 124 rotates, so that the reciprocating threaded sleeve 125 drives the reciprocating connecting plate 126 to move up and down. At the same time, the adjusting threaded rod 128 is driven to rotate by rotating the adjusting knob 127, so that the adjusting threaded sleeve 129 drives the first adjusting rotating rod 130 to move up and down, and at the same time, the limiting rotating frame 131 can be lifted up, so as to facilitate the adjustment of the height of the collecting scraper 136, so that the collecting scraper 136 fits the wall surface, which is convenient for collecting mortar. Through the characteristics of the sliding connection between the limiting sliding rod 132 and the limiting sliding sleeve 133, and under the action of the limiting spring 134, the second adjusting rotating rod 135 and the collecting scraper 136 can be rotated, which is convenient for scraping the wall surface and improving the flatness of the wall surface after spraying.

[0029] The mortar spraying mechanism 2 includes a spraying and conveying vehicle 201, a second supporting spring 202 is symmetrically installed on one side of the spraying and conveying vehicle 201, a second level 203 is fixedly installed on the end of the second supporting spring 202, a second supporting block 204 is fixedly installed on the end of the second level 203, a mounting groove 205 is provided on the inner side of the top of the spraying and conveying vehicle 201, a trolley handle 206 is rotatably connected to one side of the top of the spraying and conveying vehicle 201, a mixing box 207 is fixedly installed on one side of the spraying and conveying vehicle 201 close to the trolley handle 206, a first mixing motor 208 is fixedly installed on the top of the mixing box 207, a mixing turbine 209 is fixedly connected to the output end of the first mixing motor 208, and the mixing box A fixed bracket 210 is fixedly installed on the inner side of the top of 207, a second mixing motor 211 is fixedly installed at the top center of the fixed bracket 210, a mixing auger 212 is fixedly connected to the output end of the second mixing motor 211, a mixing bracket 213 is fixedly installed on the top and middle of the mixing auger 212, a vertical cleaning scraper 214 is fixedly installed on the ends of the two mixing brackets 213, a vertical mixing rod 215 is fixedly installed in the middle of the two mixing brackets 213, a spiral cleaning scraper 216 is fixedly installed on the bottom of the bottom mixing bracket 213, the mixing auger 212 is rotatably connected to the mixing turbine 209, a delivery pump 217 is provided on one side of the bottom of the mixing box 207, and the delivery pump 217 The output end is fixedly connected with a conveying pipe 218, and the second supporting spring 202 and the second level meter 203 are used to perform secondary inspections on the flatness of the spraying conveying vehicle 201 and the wall surface. At the same time, the raw materials used for spraying are put into the mixing box 207, and the first mixing motor 208 is started to drive the mixing turbine 209 to rotate, and the spiral force is generated by the mixing turbine 209 to perform preliminary mixing of the raw materials. At the same time, the second mixing motor 211 is started to drive the mixing auger 212 and the mixing bracket 213 to rotate, and the secondary anti-glue of the raw materials is performed through the vertical mixing rod 215 and the mixing auger 212 to further improve the mixing effect of the mortar raw materials. The inner wall of the mixing box 207 can be cleaned by the vertical cleaning scraper 214 and the spiral cleaning scraper 216 to avoid the phenomenon of residual waste of raw materials. The raw materials can be transported by the conveying pump 217 and transported to the mortar nozzle 232 through the conveying pipe 218, so as to spray the mortar.

[0030] The lifting bracket 219 is fixedly installed on the top of the spraying and conveying vehicle 201, and a lifting motor 220 is fixedly installed on one side of the top of the lifting bracket 219. The output end of the lifting motor 220 is fixedly connected to a lifting rotating rod 221, and both ends of the lifting rotating rod 221 are fixedly installed with a second bevel gear transmission assembly 222, and the bottoms of the two second bevel gear transmission assemblies 222 are fixedly installed with a lifting threaded rod 223, and the outer sides of the two lifting threaded rods 223 are threadedly connected with lifting threaded sleeves 224, and a translation bracket 225 is fixedly installed between the two lifting threaded sleeves 224, and a translation motor 226 is fixedly installed on one side of the bottom of the translation bracket 225, and the output end of the translation motor 226 is fixedly connected with a third sprocket transmission assembly 227, and a translation threaded rod 228 is fixedly installed on one side of the inner part of the third sprocket transmission assembly 227, and the outer side of the translation threaded rod 228 is threadedly connected with a translation threaded sleeve 229, and the top of the translation threaded sleeve 229 A nozzle bracket 230 is fixedly installed on the top, and an adjusting motor 231 is fixedly installed on one side of the nozzle bracket 230. A mortar nozzle 232 is fixedly connected to the output end of the adjusting motor 231. The mortar nozzle 232 is fixedly connected to the conveying pipe 218. By starting the lifting motor 220 to drive the lifting and rotating rod 221 to rotate, under the action of the second bevel gear transmission assembly 222, the lifting threaded rod 223 is rotated, and at the same time, the lifting threaded sleeve 224 drives the translation bracket 225 to move up and down, so that the height adjustment of the mortar nozzle 232 can be achieved. At the same time, the translation motor 226 is started to drive the third sprocket transmission assembly 227 and the translation threaded rod 228 to rotate, so that the translation threaded sleeve 229 drives the nozzle bracket 230 to move longitudinally, so that the longitudinal adjustment of the mortar nozzle 232 can be achieved. At the same time, the adjusting motor 231 is started to drive the mortar nozzle 232 to rotate, so that the vertical angle of the mortar nozzle 232 can be adjusted, which is convenient for all-round spraying of the wall.

[0031] Working principle: Before using this kind of construction mortar spraying equipment and its operation method for construction engineering, it is necessary to check the overall condition of the device to ensure that it can work normally. Figure 1 - Fig.11As shown, first, the second support spring 202 and the second level 203 are used to perform a secondary inspection of the spraying and conveying vehicle 201 and the flatness of the wall surface, and at the same time, the raw materials used for spraying are placed in the mixing box 207, and the first mixing motor 208 is started to drive the mixing turbine 209 to rotate, and the spiral force is generated by the mixing turbine 209 to perform preliminary mixing of the raw materials, and at the same time, the second mixing motor 211 is started to drive the mixing auger 212 and the mixing bracket 213 to rotate, and the secondary anti-glue of the raw materials is performed through the vertical mixing rod 215 and the mixing auger 212 to further improve the mixing effect of the mortar raw materials, and the inner wall of the mixing box 207 can be cleaned by the vertical cleaning scraper 214 and the spiral cleaning scraper 216 to avoid the phenomenon of residual waste of raw materials, and the delivery pump 217 can be used to achieve The raw materials are transported and delivered to the mortar nozzle 232 through the delivery pipe 218, so as to spray the mortar. The lifting motor 220 is started to drive the lifting rotating rod 221 to rotate. Under the action of the second bevel gear transmission assembly 222, the lifting threaded rod 223 is rotated, and at the same time, the lifting threaded sleeve 224 drives the translation bracket 225 to move up and down, so that the height adjustment of the mortar nozzle 232 can be achieved. At the same time, the translation motor 226 is started to drive the third sprocket transmission assembly 227 and the translation threaded rod 228 to rotate, so that the translation threaded sleeve 229 drives the nozzle bracket 230 to move longitudinally, so that the longitudinal adjustment of the mortar nozzle 232 can be achieved. At the same time, the adjustment motor 231 is started to drive the mortar nozzle 232 to rotate, so that the vertical angle of the mortar nozzle 232 can be adjusted, which is convenient for all-round spraying of the wall.

[0032] Secondly, the mortar recovery box 103 inside the horizontal support 101 is used to collect the fallen mortar, and at the same time, the mobile motor 105 is started to drive the first sprocket transmission assembly 106 and the horizontal threaded rod 107 to rotate, so that the horizontal threaded sleeve 108 drives the first rotating support 109 and the support frame 110 to move horizontally, and at the same time, the horizontal threaded rod 107 drives the first bevel gear transmission assembly 111 and the vertical threaded rod 112 to rotate, so that the vertical threaded sleeve 113 drives the second rotating support 137 and the support frame 110 to move vertically. The movement can realize the flipping function of the support frame 110, and the collecting scraper 136 is moved to the wall to facilitate the collection of mortar. While the vertical threaded sleeve 113 is lifted and moved, the cleaning bracket 114 and the cleaning roller 115 are driven to lift and move. By utilizing the characteristics of the cleaning gears 116 at both ends of the cleaning roller 115 being engaged with the meshing rack 117, the rotation of the cleaning gear 116 can be realized, so that the cleaning gear 116 drives the cleaning roller 115 to rotate, and the wall surface that needs to be sprayed can be cleaned, thereby improving the effect of spraying.

[0033] Finally, the flatness of the wall surface is detected by the first support spring 118 and the first level 119 at the top of the vertical bracket 102, and the spraying and conveying vehicle 201 can be leveled at the same time, so as to judge whether the ground is flat. By starting the reciprocating motor 122, the second sprocket transmission assembly 123 and the reciprocating threaded rod 124 are driven to rotate, so that the reciprocating threaded sleeve 125 drives the reciprocating connecting plate 126 to move up and down. At the same time, the adjusting threaded rod 128 is driven to rotate by rotating the adjusting knob 127, so that the adjusting threaded sleeve 129 drives the first adjusting rotating rod 130 to move up and down, and the limiting rotating frame 131 can be lifted up, so as to adjust the height of the collecting scraper 136, so that the collecting scraper 136 fits the wall surface, so as to collect mortar. By the characteristics of the sliding connection between the limiting sliding rod 132 and the limiting sliding sleeve 133, and under the action of the limiting spring 134, the second adjusting rotating rod 135 and the collecting scraper 136 can be rotated, so as to scrape the wall surface and improve the flatness of the wall surface after spraying.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A construction mortar spraying device for construction engineering, comprising a cleaning mortar scraping mechanism (1), and a cleaning roller (115) mounted on one side of the cleaning mortar scraping mechanism (1); A mortar spraying mechanism (2) is provided at the bottom of the cleaning and scraping mechanism (1), and a lifting bracket (219) is fixedly mounted on the top of one side of the mortar spraying mechanism (2); It is characterized in that Also includes: The cleaning and scraping mechanism (1) comprises a horizontal bracket (101), a vertical bracket (102) is symmetrically mounted on one side of the top of the horizontal bracket (101), and a mortar recovery box (103) is slidably connected inside the horizontal bracket (101); A first motor cover (104) is fixedly mounted on one side of the horizontal support (101), a mobile motor (105) is fixedly mounted on one side inside the first motor cover (104), and an output end of the mobile motor (105) is fixedly connected to a first sprocket transmission assembly (106); One side of the first sprocket transmission assembly (106) is symmetrically connected to a horizontal threaded rod (107), the outer sides of the two horizontal threaded rods (107) are both threadedly connected to horizontal threaded sleeves (108), the tops of the two horizontal threaded sleeves (108) are both fixedly mounted with first rotating brackets (109), and a support frame (110) is rotatably connected between the two first rotating brackets (109).

2. A construction mortar spraying device for construction engineering according to claim 1, characterized in that: The end plates of the two horizontal threaded rods (107) are fixedly mounted with a first bevel gear transmission assembly (111); the tops of the two first bevel gear transmission assemblies (111) are fixedly mounted with a vertical threaded rod (112); the outer sides of the two vertical threaded rods (112) are threadedly connected with a vertical threaded sleeve (113); a cleaning bracket (114) is fixedly mounted between the two vertical threaded sleeves (113); and the cleaning roller (115) is arranged on one side of the interior of the cleaning bracket (114).

3. A construction mortar spraying device for construction engineering according to claim 2, characterized in that: Cleaning gears (116) are fixedly mounted on both ends of the cleaning roller (115), and the cleaning gears (116) are rotatably connected to the cleaning bracket (114); one side of the two cleaning gears (116) is meshedly connected to a meshing rack (117); the meshing rack (117) is fixedly mounted on the outside of the vertical bracket (102); a second rotating bracket (137) is fixedly mounted on the outside of the two vertical threaded sleeves (113); the second rotating bracket (137) is rotatably connected to the supporting frame (110); a first supporting spring (118) is fixedly mounted on one side of the top of the two vertical brackets (102); a first level (119) is fixedly mounted on the end of the first supporting spring (118); and a first supporting block (120) is fixedly mounted on the end of the first level (119).

4. A construction mortar spraying device for construction engineering according to claim 3, characterized in that: A second motor cover (121) is fixedly mounted on the top of the support frame (110); a reciprocating motor (122) is fixedly mounted on one side of the interior of the second motor cover (121); an output end of the reciprocating motor (122) is fixedly connected to a second sprocket transmission assembly (123); a reciprocating threaded rod (124) is symmetrically connected to the bottom of the second sprocket transmission assembly (123); the outer sides of the two reciprocating threaded rods (124) are both threadedly connected to reciprocating threaded sleeves (125); and a reciprocating connecting plate (126) is fixedly mounted on one side of the bottom of the support frame (110) and on the outer side of the reciprocating threaded sleeve (125).

5. A construction mortar spraying device for construction engineering according to claim 4, characterized in that: The bottom of the reciprocating connecting plate (126) is symmetrically rotatably connected with an adjusting knob (127); the top of the adjusting knob (127) is fixedly mounted with an adjusting threaded rod (128); the outer side of the adjusting threaded rod (128) is threadedly connected with an adjusting threaded sleeve (129); the outer side of the adjusting threaded sleeve (129) is rotatably connected with a first adjusting rotating rod (130); the top of the first adjusting rotating rod (130) is rotatably connected with a limited rotation frame (131); a limited sliding rod (132) is fixedly mounted on one side of the inner side of the limited rotation frame (131); the outer side of the limited sliding rod (132) is slidably connected with a limited sliding sleeve (133); a limited spring (134) is fixedly mounted at the bottom of the limited sliding sleeve (133); the outer side of the limited sliding sleeve (133) is rotatably connected with a second adjusting rotating rod (135); the end of the second adjusting rotating rod (135) is rotatably connected with a collecting scraper (136).

6. A construction mortar spraying device for construction engineering according to claim 5, characterized in that: The mortar spraying mechanism (2) comprises a spraying and conveying vehicle (201), a second supporting spring (202) being symmetrically mounted on one side of the spraying and conveying vehicle (201), a second level (203) being fixedly mounted on the end of the second supporting spring (202), a second supporting block (204) being fixedly mounted on the end of the second level (203), a mounting groove (205) being provided on the inner side of the top of the spraying and conveying vehicle (201), a trolley handle (206) being rotatably connected to one side of the top of the spraying and conveying vehicle (201), a mixing box (207) being fixedly mounted on the side of the spraying and conveying vehicle (201) close to the trolley handle (206), and a first mixing motor (208) being fixedly mounted on the top of the mixing box (207).

7. A construction mortar spraying device for construction engineering according to claim 6, characterized in that: The output end of the first mixing motor (208) is fixedly connected to a mixing turbine (209); a fixed bracket (210) is fixedly installed on the inner side of the top of the mixing box (207); a second mixing motor (211) is fixedly installed at the center position of the top of the fixed bracket (210); the output end of the second mixing motor (211) is fixedly connected to a mixing auger (212); a mixing bracket (213) is fixedly installed at the top and middle of the mixing auger (212); vertical cleaning scrapers (214) are fixedly installed at the ends of the two mixing brackets (213); vertical mixing rods (215) are fixedly installed at the middle of the two mixing brackets (213); a spiral cleaning scraper (216) is fixedly installed at the bottom of the bottom mixing bracket (213); and the mixing auger (212) is rotationally connected to the mixing turbine (209).

8. The construction mortar spraying equipment for construction engineering according to claim 7, characterized in that: A delivery pump (217) is provided at one side of the bottom of the mixing box (207), and a delivery pipe (218) is fixedly connected to the output end of the delivery pump (217). The lifting bracket (219) is fixedly installed on the top of the spraying and conveying vehicle (201), and a lifting motor (220) is fixedly installed at one side of the top of the lifting bracket (219). The output end of the lifting motor (220) is fixedly connected to a lifting rotating rod (221), and second bevel gear transmission assemblies (222) are fixedly installed at both ends of the lifting rotating rod (221). Lifting threaded rods (223) are fixedly installed at the bottoms of the two second bevel gear transmission assemblies (222), and lifting threaded sleeves (224) are threadedly connected to the outer sides of the two lifting threaded rods (223).

9. A construction mortar spraying device for construction engineering according to claim 8, characterized in that: A translation bracket (225) is fixedly mounted between the two lifting threaded sleeves (224); a translation motor (226) is fixedly mounted on one side of the bottom of the translation bracket (225); an output end of the translation motor (226) is fixedly connected to a third sprocket transmission assembly (227); a translation threaded rod (228) is fixedly mounted on one side of the interior of the third sprocket transmission assembly (227); an outer side of the translation threaded rod (228) is threadedly connected to a translation threaded sleeve (229); a nozzle bracket (230) is fixedly mounted on the top of the translation threaded sleeve (229); an adjustment motor (231) is fixedly mounted on one side of the nozzle bracket (230); a mortar nozzle (232) is fixedly connected to the output end of the adjustment motor (231); and the mortar nozzle (232) is fixedly connected to the delivery pipe (218).

10. An operating method of a construction mortar spraying device for a construction project, using the construction mortar spraying device for a construction project as claimed in claim 9, characterized in that: The operation steps are as follows: Step 1: Use the second support spring (202) and the second level (203) to perform a secondary inspection of the flatness of the spraying and conveying vehicle (201) and the wall surface, and at the same time, put the raw materials used for spraying into the mixing box (207), start the first mixing motor (208) to drive the mixing turbine (209) to rotate, and generate a spiral force through the mixing turbine (209) to perform preliminary mixing of the raw materials, and at the same time start the second mixing motor (211) to drive the mixing auger (212) and the mixing bracket (213) to rotate, and perform secondary anti-glue of the raw materials through the vertical mixing rod (215) and the mixing auger (212), so as to further improve the mixing effect of the mortar raw materials, and the inner wall of the mixing box (207) can be cleaned by the vertical cleaning scraper (214) and the spiral cleaning scraper (216) to avoid the phenomenon of residual waste of raw materials, and the raw materials can be achieved by the delivery pump (217). The mortar is transported and transported to the mortar nozzle (232) through the transport pipe (218), thereby spraying the mortar. The lifting motor (220) is started to drive the lifting rotating rod (221) to rotate. Under the action of the second bevel gear transmission assembly (222), the lifting threaded rod (223) is rotated, and at the same time, the lifting threaded sleeve (224) drives the translation bracket (225) to move up and down, so that the height of the mortar nozzle (232) can be adjusted. At the same time, the translation motor (226) is started to drive the third sprocket transmission assembly (227) and the translation threaded rod (228) to rotate, so that the translation threaded sleeve (229) drives the nozzle bracket (230) to move longitudinally, so that the mortar nozzle (232) can be adjusted longitudinally. At the same time, the adjustment motor (231) is started to drive the mortar nozzle (232) to rotate, so that the vertical angle of the mortar nozzle (232) can be adjusted, so as to facilitate all-round spraying of the wall surface; Step 2: Use the mortar recovery box (103) inside the horizontal support (101) to collect the fallen mortar, and at the same time start the mobile motor (105) to drive the first sprocket transmission assembly (106) and the horizontal threaded rod (107) to rotate, so that the horizontal threaded sleeve (108) drives the first rotating support (109) and the support frame (110) to move horizontally, and at the same time the horizontal threaded rod (107) drives the first bevel gear transmission assembly (111) and the vertical threaded rod (112) to rotate, so that the vertical threaded sleeve (113) drives the second rotating support (137) and the support frame (110) to move horizontally. 0) vertical movement, which can realize the flipping function of the support frame (110), move the collection scraper (136) to the wall, and facilitate the collection of mortar. When the vertical threaded sleeve (113) moves up and down, it drives the cleaning bracket (114) and the cleaning roller (115) to move up and down. By utilizing the characteristics of the meshing connection between the cleaning gears (116) and the meshing racks (117) at both ends of the cleaning roller (115), the cleaning gear (116) can be rotated, so that the cleaning gear (116) drives the cleaning roller (115) to rotate, and the wall surface that needs to be sprayed can be cleaned, thereby improving the effect of spraying; Step 3: The flatness of the wall surface is detected by the first support spring (118) and the first level (119) at the top of the vertical bracket (102). At the same time, the spraying and conveying vehicle (201) can be leveled to facilitate the determination of whether the ground surface is flat. The reciprocating motor (122) is started to drive the second sprocket transmission assembly (123) and the reciprocating threaded rod (124) to rotate, so that the reciprocating threaded sleeve (125) drives the reciprocating connecting plate (126) to move up and down. At the same time, the adjusting knob (127) is turned to drive the adjusting threaded rod (128) to rotate, so that the adjusting knob (127) is turned. The threaded sleeve (129) drives the first adjusting rotating rod (130) to move up and down, and at the same time, the limiting rotating frame (131) can be lifted up, so as to facilitate the adjustment of the height of the collecting scraper (136), so that the collecting scraper (136) fits the wall surface, and facilitates the collection of mortar. Through the characteristics of the limiting sliding rod (132) and the limiting sliding sleeve (133) being slidably connected, and under the action of the limiting spring (134), the second adjusting rotating rod (135) and the collecting scraper (136) can be rotated, so as to facilitate the scraping of the wall surface and improve the flatness of the wall surface after spraying.

Citation Information

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