Mortar spatula

Abstract

The utility model provides a mortar spatula, which relates to the technical field of wall surface scrapers and comprises a spatula handle, one end of the spatula handle is fixedly provided with a pair of connecting blocks which are arranged in a vertically separated mode, the upper connecting block and the lower connecting block are respectively and fixedly connected with plane scraping plates on the same side, and a trowelling outer edge is formed on one side of each plane scraping plate far away from the spatula handle. The plane scraping plates abut against each other, an expansion joint is formed between the plane scraping plates on the upper side and the lower side, a tooth scraping plate is arranged on the side, away from the knife handle, in the expansion joint in a telescopic mode, and when the tooth scraping plate completely shrinks into the expansion joint, the troweling outer edges of the upper plane scraping plate and the lower plane scraping plate abut against each other. According to the mortar spatula, the tooth scraping plate is arranged between the plane scraping plates on the two sides in a telescopic mode, the mortar spatula can meet the two construction requirements of trowelling and tooth groove line forming at the same time by adjusting the telescopic amount of the tooth scraping plate, meanwhile, the forming depth and width of a tooth groove line can be controlled by adjusting the telescopic amount of the tooth scraping plate, and the mortar spatula is convenient to use. The integration level of the device is improved, and different batch scraping requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of wall scrapers, in particular to a mortar spatula. Background Art

[0002] The prior art discloses a wall tile thin-apply tooth scraper with adjustable length and a method of use thereof, which is disclosed in publication number "CN117738430A", and comprises a toothed stainless steel blade, a stainless steel base plate is welded and fixed at the tooth root of the toothed stainless steel blade, and the angle between the two is 40-50°, and a thin steel plate is welded and fixed on the stainless steel base plate; a right-angled edge is arranged on the toothed stainless steel blade, and two sliding members capable of sliding are arranged between the right-angled edge and the thin steel plate; detachable toothed blades can be respectively installed on both sides of the toothed stainless steel blade, locking connection blocks are respectively fixed on both sides of the toothed stainless steel blade, a locking connection movable head is fixed on one side of the detachable toothed blade, and detachable fixation can be achieved between the locking connection block and the locking connection movable head.

[0003] However, the above-mentioned adjustable length toothed scraper for thin-layer wall tiles still has obvious defects during use: the toothed stainless steel blade and the stainless steel base plate are welded, which means that the toothed stainless steel blade can only be used for scraping walls with tooth groove forming requirements. Usually, wall leveling and tooth groove line forming need to be completed in steps, which means that construction workers need to prepare two tools, a leveling scraper and a tooth groove line forming scraper, during the construction of walls with tooth groove line requirements, which is not conducive to the simplification of construction equipment. Utility Model Content

[0004] The utility model aims to provide a mortar spatula to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A mortar trowel comprises a handle, one end of which is fixedly provided with a pair of connecting blocks which are arranged apart from each other in an upper and lower direction, the upper and lower connecting blocks are respectively fixedly connected to a flat scraper on the same side, the flat scraper forms a smoothing outer edge on the side away from the handle, the flat scrapers are arranged against each other, an expansion joint is formed between the flat scrapers on the upper and lower sides, a tooth scraper is telescopically arranged in the expansion joint on the side away from the handle, when the tooth scraper is completely retracted into the expansion joint, the smoothing outer edges of the upper and lower flat scrapers are against each other, at this time the flat scraper performs a smoothing operation on the mortar during the scraping process, and when the tooth scraper extends outward from the expansion joint to protrude the smoothing outer edge of the flat scraper, the tooth scraper forms a rope pattern on the mortar surface during the scraping process.

[0007] Preferably, the upper and lower planar scrapers abut against each other on one side and are connected via a plurality of traction springs, and the traction springs push the planar scrapers on both sides closer to each other in the absence of external force.

[0008] Preferably, the upper and lower planar scrapers are located in the expansion joint and are also provided with translation grooves, the translation grooves cooperate with translation sliders, and the translation sliders are fixedly mounted on both sides of the tooth scraper.

[0009] Preferably, the mechanism for driving the tooth scraper to perform telescopic movement includes a telescopic threaded rod, one end of the telescopic threaded rod extends into the expansion gap and is fixedly connected to the tooth scraper, the end of the telescopic threaded rod away from the tooth scraper is inserted into an internal threaded sleeve, and the internal threaded sleeve is movably installed in a sleeve cabin opened at the axis of the handle through a bearing, and the end of the internal threaded sleeve away from the handle is fixedly connected to a rotating operating handle, and the tooth scraper is driven to perform telescopic movement by rotation of the rotating operating handle.

[0010] Preferably, elastic shrink bands are installed on both sides of the smoothing outer edges of the upper and lower flat scrapers, and the elastic shrink bands cause the smoothing outer edges on both sides to abut against each other when the tooth scrapers are in a fully retracted state.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model has a toothed scraper which is telescopically arranged between the flat scrapers on both sides. By adjusting the telescopic amount of the toothed scraper, the mortar trowel can simultaneously meet the two construction requirements of leveling and toothed groove line forming. At the same time, by adjusting the telescopic amount of the toothed scraper, the forming depth and width of the toothed groove line can also be controlled, thereby improving the integration of the device and meeting different scraping requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the telescopic threaded rod connection structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the tooth scraper installation structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the tooth scraper of the utility model in a retracted state;

[0016] Figure 4 It is a schematic diagram of the tooth scraper of the utility model in the state of extending outward.

[0017] In the figure: 1 handle, 2 connecting block, 3 flat scraper, 4 smooth outer edge, 5 expansion joint, 6 tooth scraper, 7 traction spring, 8 translation slide, 9 translation slider, 10 telescopic threaded rod, 11 internal threaded sleeve, 12 bearing, 13 rotating operating handle, 14 elastic shrink belt. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-4 , the utility model provides a technical solution:

[0020] Embodiment 1:

[0021] A mortar trowel comprises a handle 1, one end of which is fixedly provided with a pair of connection blocks 2 which are separated from each other in an upper and lower direction, the upper and lower connection blocks 2 are respectively fixedly connected to a flat scraper 3 on the same side, a flat scraper 3 forms a smoothing outer edge 4 on the side away from the handle 1, the flat scrapers 3 are arranged against each other, an expansion joint 5 is formed between the flat scrapers 3 on the upper and lower sides, a tooth scraper 6 is telescopically arranged in the expansion joint 5 on the side away from the handle 1, when the tooth scraper 6 is completely retracted into the expansion joint 5, the smoothing outer edges 4 of the upper and lower flat scrapers 3 are against each other, at this time the flat scraper 3 performs a smoothing operation on the mortar during the scraping process, and when the tooth scraper 6 extends outward from the expansion joint 5 and protrudes out of the smoothing outer edge 4 of the flat scraper 3, at this time the tooth scraper 6 forms a rope pattern on the surface of the mortar during the scraping process.

[0022] In this embodiment, the handle 1 is fixedly connected to the flat scrapers 3 arranged on the upper and lower sides through the connecting block 2. The flat scraper 3 is a steel sheet structure, and the side away from the handle 1 forms a smooth outer edge 4. Figure 2-3 When the smoothing outer edge 4 is at the outermost edge, since it is a straight structure, the surface of the mortar layer can be made flat by scraping the smoothing outer edge 4. At the same time, expansion joints 5 are also opened in the middle of the flat scrapers 3 on the upper and lower sides, and the tooth scrapers 6 are translated and slidably arranged in the expansion joints 5. When the tooth scrapers 6 extend outward from the outer edge of the flat scraper 3, the comb-like structure neatly arranged on the tooth scrapers 6 is at the outermost edge. At this time, the scraping of the tooth scrapers 6 can form a rope-shaped groove shape on the mortar surface, so that the mortar trowel can meet the two construction requirements of smoothing and tooth groove line forming at the same time. At the same time, by adjusting the expansion and contraction amount of the tooth scrapers, the forming depth and width of the rope-shaped groove can also be controlled, thereby improving the degree of integration of the device.

[0023] Embodiment 2:

[0024] The upper and lower flat scrapers 3 are abutted against each other on one side and are connected by a plurality of traction springs 7. The traction springs 7 push the flat scrapers 3 on both sides closer to each other in the absence of external force.

[0025] Elastic shrink bands 14 are installed on both sides of the upper and lower flat scrapers 3 at the leveling outer edges 4. The elastic shrink bands 14 cause the leveling outer edges 4 on both sides to abut against each other when the tooth scrapers 6 are in a fully retracted state.

[0026] In this embodiment, a traction spring 7 and an elastic shrink band 14 are further provided, by which the upper and lower flat scrapers 3 can be urged to approach each other. At the same time, the elastic shrink band 14 provided near the leveling outer edge 4 of the flat scraper 3 can also pull the upper and lower flat scrapers 3 to closely abut against each other when the tooth scraper 6 is fully retracted, thereby eliminating the expansion gap 5 therebetween, thereby ensuring the smooth progress of the leveling operation.

[0027] Embodiment three:

[0028] The upper and lower flat scrapers 3 are located in the expansion joint 5 and are also provided with translational slide grooves 8 , which cooperate with translational sliders 9 , and the translational sliders 9 are fixedly installed on both sides of the tooth scraper 6 .

[0029] This embodiment further discloses a telescopic limiting mechanism of the tooth scraper 6, and the stability of its translational sliding is ensured by the cooperation of the translational sliding groove 8 and the translational sliding block 9.

[0030] Embodiment 4:

[0031] The mechanism for driving the tooth scraper 6 to perform telescopic movement includes a telescopic threaded rod 10, one end of the telescopic threaded rod 10 extends into the expansion joint 5 and is fixedly connected to the tooth scraper 6, the end of the telescopic threaded rod 10 away from the tooth scraper 6 is inserted into an internal threaded sleeve 11, and the internal threaded sleeve 11 is movably installed in a sleeve cabin opened at the axis of the handle 1 through a bearing 12, and the end of the internal threaded sleeve 11 away from the handle 1 is fixedly connected to a rotating operating handle 13, and the tooth scraper 6 is driven to perform telescopic movement by the rotation of the rotating operating handle 13.

[0032] In this embodiment, a related mechanism for driving the tooth scraper 6 to perform telescopic movement is further disclosed, and the tooth scraper 6 is driven to perform telescopic movement by rotating the rotary operating handle 13 .

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mortar spatula, comprising a handle, characterized in that: A pair of connecting blocks separated from each other are fixedly installed at one end of the knife handle, and the upper and lower connecting blocks are respectively fixedly connected to the flat scraper on the same side, and the flat scraper forms a smoothing outer edge on the side away from the knife handle. The flat scrapers are arranged against each other, and an expansion joint is formed between the flat scrapers on the upper and lower sides. A tooth scraper is telescopically arranged in the expansion joint away from the side of the knife handle. When the tooth scraper is completely retracted into the expansion joint, the smoothing outer edges of the upper and lower flat scrapers are against each other. At this time, the flat scraper smoothes the mortar during the scraping process. When the tooth scraper extends outward from the expansion joint to protrude the smoothing outer edge of the flat scraper, the tooth scraper forms a rope pattern on the mortar surface during the scraping process.

2. A mortar spatula according to claim 1, characterized in that: The upper and lower planar scrapers are pressed against each other on one side and are connected by a plurality of traction springs. The traction springs push the planar scrapers on both sides closer to each other without external force.

3. A mortar spatula according to claim 1 or 2, characterized in that: The upper and lower planar scrapers are located in the expansion joint and are also provided with translational slide grooves, the translational slide grooves cooperate with translational sliders, and the translational sliders are fixedly installed on both sides of the tooth scraper.

4. A mortar spatula according to claim 3, characterized in that: The mechanism for driving the tooth scraper to perform telescopic movement includes a telescopic threaded rod, one end of the telescopic threaded rod extends into the expansion gap and is fixedly connected to the tooth scraper, the end of the telescopic threaded rod away from the tooth scraper is inserted into an internal threaded sleeve, and the internal threaded sleeve is movably installed in a sleeve compartment opened at the axis of the handle through a bearing, and the end of the internal threaded sleeve away from the handle is fixedly connected to a rotating operating handle, and the tooth scraper is driven to perform telescopic movement by the rotation of the rotating operating handle.

5. A mortar spatula according to claim 4, characterized in that: The upper and lower flat scrapers are also provided with elastic shrinkage bands on both sides of the smoothing outer edges, and the elastic shrinkage bands cause the smoothing outer edges on both sides to abut against each other when the tooth scrapers are in a fully retracted state.

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