A simple adjustable plastering device

Abstract

The present invention discloses a simple adjustable plastering device, which includes a plastering knife body, an elastic plastering block and a radian adjusting mechanism; a horizontally arranged horizontal plastering surface is formed on one end surface of the plastering knife body, and an installation through groove is formed along the length direction of the horizontal plastering surface; both ends of the elastic plastering block are slidably arranged at both ends in the installation through groove respectively and are fixed by a locking structure, and the middle part of the elastic plastering block is received in the installation through groove or protrudes outside the installation through groove; the radian adjusting mechanism is arranged in the plastering knife body and is connected with the middle part of the elastic plastering block for changing the distance between the middle part of the elastic plastering block and the installation through groove; compared with the prior art, the present invention is composed of structures such as a plastering knife body, an elastic plastering block and a radian adjusting mechanism, and can form a horizontal plastering surface or an arc-shaped plastering surface with different radian to efficiently carry out plastering construction on walls with different requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of plastering tool structures, and in particular to a simple adjustable plastering device. Background Art

[0002] A putty knife is a common tool in the process of small-scale building construction. It is usually used for applying coatings and lime, and also for leveling different coarse and miscellaneous particles on the ground or wall. In the prior art, the putty knife usually has a single function.

[0003] In order to enhance the use function of the putty knife, a patent document with the application number CN201921439167.2 discloses a putty knife with a pressurizing function, which includes a shovel plate with a dust collection device inside. A handle with a sunken groove is provided at the upper end of the shovel plate. A pressurizing device is hinged on the handle, and the pressurizing device is connected to the shovel plate through a compressible shielding device; a cutting edge is further provided at the front end of the shovel plate, and a hole groove that cooperates with the pressurizing device is provided on one side of the cutting edge.

[0004] Although the above putty knife is provided with a dust collection device to collect the soil shoveled by a simple structure, the settings of the inclined plane, the arc-shaped shielding plate and the blocking device can prevent the shoveled ash from falling out of the dust collection bin; however, the radian of the arc-shaped plastering surface formed on the cutting edge of the above putty knife is fixed and cannot be adjusted according to the plastering walls with different radian to meet the requirements. Summary of the Invention

[0005] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a simple adjustable plastering device to solve the problem that in the prior art, the radian of the arc-shaped plastering surface formed on the cutting edge of the putty knife is fixed and cannot be adjusted according to the plastering walls with different radian to meet the requirements.

[0006] To achieve the above purpose, the present invention adopts the following technical solution: A simple adjustable plastering device, comprising:

[0007] A putty knife body, on one end surface of the putty knife body, a horizontally arranged horizontal plastering surface is formed, and an installation through groove is formed along the length direction of the horizontal plastering surface;

[0008] Elastic plastering blocks, both ends of the elastic plastering blocks are slidably arranged at both ends in the installation through groove in a one-to-one correspondence and are fixed by locking structures, and the middle parts of the elastic plastering blocks are received in the installation through groove or protrude out of the installation through groove;

[0009] A radian adjusting mechanism, which is arranged in the putty knife body and is connected to the middle part of the elastic plastering block, and is used to change the distance between the middle part of the elastic plastering block and the installation through groove.

[0010] Working principle: The locking structures at both ends are disengaged from fixing the elastic plastering block. Through the arc adjustment mechanism, the distance between the middle part of the elastic plastering block and the installation through groove is made zero, that is, the middle part of the elastic plastering block is received in the installation through groove. At this time, the locking structures at both ends lock and fix the elastic plastering block again, and then the horizontal plastering surface of the plastering knife body can be used to meet the plastering requirements of the horizontal wall surface; when adjustment is needed, the locking structures at both ends are disengaged from fixing the elastic plastering block again, and the distance between the middle part of the elastic plastering block and the installation through groove is increased through the arc adjustment mechanism, so that the middle part of the elastic plastering block protrudes out of the installation through groove, forming an arc-shaped elastic plastering block on one side outside the plastering knife body. At this time, the locking structures at both ends lock and fix the elastic plastering block again, and the arc-shaped elastic plastering block is used to plaster the arc-shaped wall surface stably; and the distance between the middle part of the elastic plastering block and the installation through groove is changed through the arc adjustment mechanism, thereby changing the distance that the middle part of the elastic plastering block protrudes out of the plastering knife body, and adjusting the arc of the arc-shaped elastic plastering block at this time to meet the actual requirements.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This simple adjustable plastering device is composed of structures such as a plastering knife body, an elastic plastering block, and an arc adjustment mechanism, and can form a horizontal plastering surface or arc-shaped plastering surfaces with different arcs to efficiently perform plastering construction on wall surfaces with different requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0014] Figure 2 is Figure 1 a partial cross-sectional view of the plastering knife body in

[0015] Figure 3 is Figure 1 a partial structural schematic diagram of the locking structure in

[0016] The reference numerals in the accompanying drawings of the specification include: plastering knife body 1, elastic plastering block 2, installation through groove 3, arc adjustment mechanism 4, ejector rod 41, swing rod 42, sliding groove 43, adjusting screw 44, transmission rod 45, locking structure 5, limiting column 51, locking cap 52, installation cavity 6, elastic telescopic rod 7, adjusting hole 8, right-angled notch 9, right-angled side 10, handle 11, locking column 12, limiting guide groove 13. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The present invention will be further described in detail below through specific embodiments:

[0018] As shown in Figure 1 and Figure 2As shown in the figure, an embodiment of the present invention provides a simple adjustable plastering device, which includes a plastering knife body 1, an elastic plastering block 2, and a radian adjusting mechanism 4;

[0019] Wherein, a horizontally arranged horizontal plastering surface is formed on one end surface of the plastering knife body 1, and an installation through groove 3 is formed along its length direction on the horizontal plastering surface;

[0020] Both ends of the elastic plastering block 2 are slidably arranged at both ends in the installation through groove 3 and are fixed by a locking structure 5, and the middle part of the elastic plastering block 2 is received in the installation through groove 3 or protrudes out of the installation through groove 3;

[0021] The radian adjusting mechanism 4 is arranged in the plastering knife body 1 and is connected to the middle part of the elastic plastering block 2, and is used to change the distance between the middle part of the elastic plastering block 2 and the installation through groove 3.

[0022] During use, the locking structures 5 at both ends are disengaged from the fixation of the elastic plastering block 2, and the distance between the middle part of the elastic plastering block 2 and the installation through groove 3 is made zero through the radian adjusting mechanism 4, that is, the middle part of the elastic plastering block 2 is received in the installation through groove 3. At this time, the locking structures 5 at both ends lock and fix the elastic plastering block 2 again, and then the plastering requirements of the horizontal wall surface can be met through the horizontal plastering surface of the plastering knife body 1; when adjustment is needed, the locking structures 5 at both ends are disengaged from the fixation of the elastic plastering block 2 again, and the distance between the middle part of the elastic plastering block 2 and the installation through groove 3 is increased through the radian adjusting mechanism 4, so that the middle part of the elastic plastering block 2 protrudes out of the installation through groove 3, and an arc-shaped elastic plastering block 2 is formed outside one side of the plastering knife body 1. At this time, the locking structures 5 at both ends lock and fix the elastic plastering block 2 again, and the arc-shaped elastic plastering block 2 is used to stably plaster the arc-shaped wall surface; and the distance between the middle part of the elastic plastering block 2 and the installation through groove 3 is changed through the radian adjusting mechanism 4, so as to change the distance that the middle part of the elastic plastering block 2 protrudes out of the plastering knife body 1, and the radian of the arc-shaped elastic plastering block 2 at this time is adjusted to meet the actual requirements.

[0023] This simple adjustable plastering device is composed of structures such as a plastering knife body 1, an elastic plastering block 2, and a radian adjusting mechanism 4, and can form a horizontal plastering surface or arc-shaped plastering surfaces with different radian, so as to efficiently carry out plastering construction on wall surfaces with different requirements.

[0024] As Figure 1 and Figure 2 shown, according to another embodiment of the present invention, in the simple adjustable plastering device, an installation cavity 6 is arranged in the plastering knife body 1, and the adopted radian adjusting mechanism 4 includes a top rod 41 and an adjusting part;

[0025] One end of the ejector rod 41 is fixedly connected to the middle of the elastic plastering block 2, and the other end is slidably connected in the installation cavity 6. The moving direction of the ejector rod 41 is perpendicular to the connection direction of both ends of the elastic plastering block 2.

[0026] The adjusting part is arranged in the installation cavity 6 and is connected to the end of the ejector rod 41 placed in the installation cavity 6 for adjusting the moving distance of the ejector rod 41.

[0027] Here is how it works: The user moves the ejector rod 41 through the adjusting part, so that the end of the ejector rod 41 connected to the elastic plastering block 2 moves away from the end of the plastering knife body 1. Then the middle of the elastic plastering block 2 protrudes outside the plastering knife body 1, and the arc surface of the elastic plastering block 2 away from the plastering knife body 1 is used as the arc-shaped plastering surface to perform plastering construction on the arc-shaped wall surface; the adjusting part changes the moving distance of the ejector rod 41, so as to change the radian of the arc-shaped plastering surface to meet the actual needs and efficiently perform plastering construction on arc-shaped wall surfaces with different radians; at the same time, the ejector rod 41 is moved into the installation cavity 6 through the adjusting part until the middle of the elastic plastering block 2 is received in the installation through groove 3. At this time, the plastering knife body 1 can perform plastering construction on the flat wall through the horizontal plastering surface.

[0028] Among them, the adopted adjusting part includes a swing rod 42 and a driving structure;

[0029] The middle of the swing rod 42 is rotatably connected to the inner wall of the installation cavity 6. Both ends of the swing rod 42 are provided with sliding grooves 43 along its length direction. A sliding limit column fixedly connected to one end of the ejector rod 41 is slidably connected in one of the sliding grooves 43;

[0030] The driving structure is slidably connected to the other sliding groove 43 and is placed outside the plastering knife body 1 after passing through the installation cavity 6.

[0031] The part of the driving structure placed outside the plastering knife body 1 is convenient for adjusting the driving structure during use, so that the swing rod 42 rotates in the installation cavity 6. Through the cooperation of the sliding limit column and the sliding groove 43, the arc movement of the swing rod 42 is converted into the linear movement of the ejector rod 41, and then the elastic plastering block 2 is adjusted through the movement of the ejector rod 41.

[0032] In order to make the linear movement of the ejector rod 41 more stable, a limit guiding groove 13 is opened on the inner wall of the installation cavity 6 along the moving direction of the ejector rod 41. The end of the ejector rod 41 placed in the installation cavity 6 is slidably arranged in the limit guiding groove 13; the limit guiding groove 13 is used to guide the movement of the ejector rod 41, and the linear movement of the ejector rod 41 can be carried out stably; specifically, one end of the ejector rod 41 in the limit guiding groove 13 forms a large-head limit end, and the large-head limit end is slidably arranged in the limit guiding groove 13 to prevent the ejector rod 41 from disconnecting from the limit guiding groove 13, which plays a limiting role in the movement of the ejector rod 41, so that the adjustment of the ejector rod 41 is more stable.

[0033] Based on the above solution, the driving structure adopted includes an adjusting screw rod 44 and a transmission rod 45;

[0034] Wherein, one end of the adjusting screw rod 44 is arranged in the installation cavity 6 and the other end is placed outside the ash knife body 1, and the adjusting screw rod 44 is in threaded connection with the ash knife body 1;

[0035] One end of the transmission rod 45 is fixedly connected with a positioning column slidably arranged in the corresponding chute 43, the other end is rotatably connected with the end of the adjusting screw rod 44 placed in the installation cavity 6, and the transmission rod 45 and the adjusting screw rod 44 are coaxially arranged.

[0036] The specific adjustment process is as follows: Suppose the elastic plastering block 2 is initially stored in the installation channel, then the ash knife body 1 can be used to plaster the flat wall through the horizontal plastering surface; when plastering the arc wall, in order to improve the efficiency of plastering the arc wall, the user first disengages the locking structures 5 at both ends from fixing the elastic plastering block 2, and then holds one end of the adjusting screw rod 44 outside the ash knife body 1 and rotates the adjusting screw rod 44 to move the adjusting screw rod 44, then the transmission rod 45 moves synchronously with the adjusting screw rod 44; through the cooperation of the positioning column and the corresponding chute 43, the swing rod 42 rotates stably along with the movement of the transmission rod 45 without being restricted, and during the rotation of the swing rod 42, the ejector rod 41 moves stably along the limit guiding groove 13 through the cooperation of the sliding limit column and the corresponding chute 43; during this process, the adjusting screw rod 44 moves out of the installation cavity 6, so that the ejector rod 41 moves in the opposite direction to the movement direction of the adjusting screw rod 44, moves the middle part of the elastic plastering block 2 into the installation channel and protrudes the middle part of the elastic plastering block 2 out of the ash knife body 1 to form an arc plastering surface. When the radian of the arc plastering surface meets the use requirements, stop rotating the adjusting screw rod 44; because the adjusting screw rod 44 is in threaded connection with the ash knife body 1 and has a certain locking ability, at this time the adjusting screw rod 44 is in a fixed state, then both the swing rod 42 and the ejector rod 41 are limited and fixed to keep the elastic plastering block 2 in the required state; at the same time, the locking structures 5 at both ends lock and fix the elastic plastering block 2 again, so that the elastic plastering block 2 stably maintains an arc state for stable use.

[0037] Further, the distance between one end of the swing rod 42 connected to the ejector rod 41 and the rotation center point of the swing rod 42 is several times the distance between the end of the swing rod 42 connected to the driving structure and the rotation center point of the swing rod 42; the specific multiple can be 6, 7 or 8 times, etc., and it is adjusted according to actual needs, which can make the ejector rod 41 move a large distance by moving the adjusting screw rod 44 a small distance, so that the adjustment of the elastic plastering block 2 is more rapid and the layout of structures such as the adjusting screw rod 44 is more reasonable.

[0038] Such as Figure 2As shown, according to another embodiment of the present invention, for the simple adjustable plastering device, an elastic telescopic rod 7 is fixedly connected to the inner wall of the installation cavity 6. The elastic telescopic rod 7 is arranged in parallel with the ejector rod 41. A regulating column slidably arranged in one of the chutes 43 is connected to the free end of the elastic telescopic rod 7. The regulating column and the sliding limit column are located in the same chute 43.

[0039] During the swinging process of the swing rod 42, the elastic telescopic rod 7 correspondingly performs telescopic adjustment, so that the swing rod 42 is more stable during the rotation and stopping processes. The cooperation between the regulating column and the corresponding chute 43 avoids the stuck state during the rotation of the swing rod 42 and the telescopic adjustment of the elastic telescopic rod 7, so that the adjustment of the elastic plastering block 2 can proceed normally.

[0040] As Figure 1 、 Figure 2 and Figure 3 shown, according to another embodiment of the present invention, for the simple adjustable plastering device, adjusting holes 8 are formed along the length direction on the side walls at both ends of the elastic plastering block 2. Each locking structure 5 includes a limit post 51 and a locking cap 52;

[0041] Wherein, the limit post 51 is fixedly arranged in the installation through groove 3 and freely passes through the corresponding adjusting hole 8;

[0042] The locking cap 52 is arranged on the outer wall of the trowel body 1 and one end of it freely penetrates into the installation through groove 3 and is threadedly connected to one end of the limit post 51. The end of the locking cap 52 penetrating into the installation through groove 3 abuts against the elastic plastering block 2 to lock and fix the elastic plastering block 2.

[0043] Here: When adjusting the elastic plastering block 2, first rotate the locking cap 52 to disengage from abutting against the elastic plastering block 2. At this time, the cooperation between the limit post 51 and the corresponding adjusting hole 8 limits the end of the elastic plastering block 2 and enables relative movement between the elastic plastering block 2 and the limit post 51, which can avoid being restricted during the adjustment of the elastic plastering block 2; after the elastic plastering block 2 is adjusted, rotate the locking cap 52 in the reverse direction to abut against the elastic plastering block 2 again, so as to lock and fix the end of the elastic plastering block 2 and enable the elastic plastering block 2 to be used stably.

[0044] As Figure 1 and Figure 2 shown, according to another embodiment of the present invention, for the simple adjustable plastering device, right-angled notches 9 and right-angled side edges 10 are formed at intervals at the edge of the trowel body 1.

[0045] In this embodiment: Specifically, the ash knife body 1 is a rectangular block, the horizontal plastering surface is a side surface of the rectangular block, the right-angle notch 9 and the right-angle side 10 are at two different corners of the rectangular block, and the side surface of the rectangular block where both the right-angle notch 9 and the right-angle side 10 are located is arranged parallel to the horizontal plastering surface, so as to reasonably distribute the horizontal plastering surface, the right-angle notch 9 and the right-angle side 10. The right-angle side 10 can be used for plastering construction at the internal corner of the wall, and the right-angle notch 9 can be used for plastering construction at the external corner of the wall, to further enrich the use of this simple adjustable plastering device.

[0046] As Figure 1 shown, according to another embodiment of the present invention, the simple adjustable plastering device further includes a handle 11. One end of the handle 11 is rotatably connected to the middle of the outer wall of the ash knife body 1, and a locking column 12 is also threadedly connected to the handle 11. The rotation points of the locking column 12 and the handle 11 are arranged at intervals. One end of the locking column 12 abuts against the outer wall of the ash knife body 1 to lock and fix the handle 11.

[0047] When the locking column 12 is rotated to be separated from abutting against the outer wall of the ash knife body 1, the handle 11 can be rotated around its rotation point to the required position, and then the locking column 12 is rotated in the reverse direction to abut against the outer wall of the ash knife body 1 again, so as to fix the handle 11, which is convenient for the user to hold stably; the connection method of the handle 11 is convenient for rotating to different angles for fixing, so as to reasonably use the right-angle notch 9, the right-angle side 10, the horizontal plastering surface and the elastic plastering block 2 for plastering construction.

[0048] The handle 11 can be a telescopic rod, which is convenient for adjusting its length to perform plastering construction on walls of different heights.

[0049] Here, the elastic plastering block 2 can be processed from a polymer material and has sufficient structural strength; for example: the main material in the elastic plastering block 2 is polyurethane.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limitations. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A simple adjustable plastering device, characterized in that, Including: A putty knife body, on one end face of the putty knife body, a horizontally arranged horizontal plastering surface is formed, and an installation through groove is formed along its length direction on the horizontal plastering surface; An elastic plastering block, both ends of the elastic plastering block are slidably arranged at both ends in the installation through groove in a one-to-one correspondence and are fixed by a locking structure, and the middle part of the elastic plastering block is received in the installation through groove or protrudes outside the installation through groove; A radian adjusting mechanism, the radian adjusting mechanism is arranged in the putty knife body and is connected to the middle part of the elastic plastering block, and is used to change the distance between the middle part of the elastic plastering block and the installation through groove; An installation cavity is arranged in the putty knife body, and the radian adjusting mechanism includes: A push rod, one end of the push rod is fixedly connected to the middle part of the elastic plastering block, and the other end is slidably connected in the installation cavity, and the moving direction of the push rod is perpendicular to the connecting line direction of both ends of the elastic plastering block; An adjusting part, the adjusting part is arranged in the installation cavity and is connected to the end of the push rod placed in the installation cavity, and is used to adjust the moving distance of the push rod; The adjusting part includes: A swing rod, the middle part of the swing rod is rotatably connected to the inner wall of the installation cavity, both ends of the swing rod are provided with sliding grooves along its length direction, and a sliding limit column fixedly connected to one end of the push rod is slidably connected in one of the sliding grooves; A driving structure, the driving structure is slidably connected to the other sliding groove and is placed outside the putty knife body after passing through the installation cavity; The driving structure includes: An adjusting screw, one end of the adjusting screw is arranged in the installation cavity and the other end is placed outside the putty knife body, and the adjusting screw is threadedly connected to the putty knife body; A transmission rod, one end of the transmission rod is fixedly connected with a positioning column slidably arranged in the corresponding sliding groove, and the other end is rotatably connected to the end of the adjusting screw placed in the installation cavity, and the transmission rod and the adjusting screw are coaxially arranged; An elastic telescopic rod is fixedly connected to the inner wall of the installation cavity, the elastic telescopic rod is arranged parallel to the push rod, an adjusting column slidably arranged in one of the sliding grooves is connected to the free end of the elastic telescopic rod, and the adjusting column and the sliding limit column are located in the same sliding groove.

2. The simple adjustable plastering device according to claim 1, wherein: A limiting guide groove is opened on the inner wall of the installation cavity along the moving direction of the push rod, and the end of the push rod placed in the installation cavity is slidably arranged in the limiting guide groove.

3. The simple adjustable plastering device according to claim 1, wherein: The distance between the end of the swing rod connected to the push rod and the rotation center point of the swing rod is several times the distance between the end of the swing rod connected to the driving structure and the rotation center point of the swing rod.

4. The simple adjustable plastering device according to claim 1, wherein: It further includes a handle, one end of the handle is rotatably connected to the middle part of the outer wall of the putty knife body, and a locking column is also threadedly connected to the handle, the locking column is arranged at an interval from the rotation point of the handle, and one end of the locking column abuts against the outer wall of the putty knife body to lock and fix the handle.

5. The simple adjustable plastering device according to claim 1, wherein: Adjusting holes are opened along the length direction on the side walls at both ends of the elastic plastering block, and each locking structure includes: A limiting column, the limiting column is fixedly arranged in the installation through groove and freely passes through the corresponding adjusting hole; A locking cap, the locking cap is arranged on the outer wall of the putty knife body, and one end of it freely penetrates into the installation through groove and is threadedly connected to one end of the limiting column, and the end of the locking cap penetrating into the installation through groove abuts against the elastic plastering block to lock and fix the elastic plastering block.

6. The simple adjustable plastering device according to claim 1, characterized in that: Right-angled notches and right-angled side edges arranged at intervals are formed at the edge of the putty knife body.

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