Blade side blocking structure of putty slicking device

Abstract

The blade side blocking structure of the putty slicking device comprises a sealing piece and a positioning structure arranged on a sealing cover, the sealing piece has a blocking state of being fixed on the positioning structure and an unlocking state of being separated from the positioning structure, in the blocking state, one end of the sealing piece seals the end of a gap, and in the unlocking state, the other end of the sealing piece seals the end of the gap. The sealing piece is rotatably installed on the sealing cover, the sealing piece can seal the end of the gap and prevent the blade from being separated from the grab handle from the end of the gap in the blocking state, when the blade needs to be pulled out or replaced, the sealing piece is pushed by a hand, and the blade is prevented from being separated from the grab handle from the end of the gap when the blade needs to be pulled out or replaced. When the sealing cover is detached, the positioning block is separated from the positioning groove, then the sealing piece is rotated, the end of the gap is exposed, the blade can be pulled out from the end of the gap, the potential safety hazard that workers are easily accidentally injured by the blade in the sealing cover detaching process is avoided, unlocking and re-locking of the sealing piece are very labor-saving and convenient, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of construction tools, in particular to a blade side stop structure of a putty scraper. Background Art

[0002] Whitewashing is a common method of interior wall decoration in buildings. It mainly uses a mixture of whitewash, talcum powder and cellulose to fill and smooth the rough cement surface.

[0003] To better perform the job of scraping whitewash, a putty scraper, also known as a putty scraper, is now available on the market. This tool includes a handle for grasping, with removable covers on either side. A fixing plate is located on the underside of the handle, and a blade can be freely removed and installed in the gap between the handle and the fixing plate. To install the blade, the rear end of the blade is generally inserted directly into the front of the gap. Once inserted, the blade cannot be removed from the front of the gap due to a similar undercut structure between the blade and the fixing plate. In this case, one of the covers must be removed, and the blade must be pulled out from the left or right end of the handle. However, due to the tight connection between the cover and the handle, removing the cover requires considerable force, making removal difficult. Furthermore, the blade is sharp, and excessive force can easily cause the blade to injure the worker, posing a significant safety hazard. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a blade side stop structure of a putty scraper.

[0005] The technical solution adopted by the present invention is: a blade side stop structure of a putty scraper, the putty scraper includes a handle, a fixing plate is provided on the handle, a gap is provided between the fixing plate and the handle for inserting and fixing one end of the blade, at least one of the left and right ends of the handle is provided with a cover, at least one of the left and right ends of the gap extends to the cover, the blade side stop structure includes a sealing member, and a positioning structure provided on the cover, the sealing member has a sealing state fixed on the positioning structure, and an unlocking state detached from the positioning structure, in the sealing state, one end of the sealing member blocks the end of the gap and prevents the blade from detaching from the handle from the end of the gap, and in the unlocking state, the end of the gap is exposed.

[0006] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution. They are merely further supplements or optimizations. Under the premise that there are no technical or logical contradictions, each optional method can be combined separately for the above-mentioned overall solution, or multiple optional methods can be combined.

[0007] Preferably, the fixing plate is arranged on the lower end surface of the handle, the positioning structure is at least one positioning groove arranged at the lower end of the cover, and the sealing member is provided with at least one positioning block, and in the blocking state, the positioning block is matched and inserted into the positioning groove.

[0008] Preferably, two shaft seats arranged at intervals front to back are provided on one side of the lower end of the covering cover, a shaft rod is fixed between the two shaft seats, and a strip groove for the shaft rod to pass through is provided on the covering member, in the blocking state, the shaft rod is located at the lower end of the strip groove, in the unlocking state, the shaft rod is located at the upper end of the strip groove, and the covering member can rotate around the shaft rod.

[0009] Preferably, the sealing member includes an integrally formed lower connecting block and an upper connecting block, the lower connecting block is located below the upper connecting block, wherein the strip groove extends vertically and is arranged on the upper connecting block, the lower connecting block is provided with a first extension portion, and the positioning block is fixed on the first extension portion. In the blocking state, the lower end of the first extension portion abuts against the lower end of the cover, and the side end of the first extension portion is used to cooperate with the end portion of the gap to block the gap. In the unlocked state, the first extension portion leaves the lower end of the cover.

[0010] Preferably, the lower connecting block is further provided with a second extension portion, which is arranged on the front side or rear side of the upper connecting block. In the blocking state, the second extension portion abuts against the lower end of the cover, and in the unlocking state, the second extension portion leaves the lower end of the cover.

[0011] Preferably, the handle is hollow inside, and at least one of the left and right ends is provided with a through opening, and one side of the cover is provided with a convex rib, and the convex rib is matched and snapped into the through opening.

[0012] Preferably, the cover is fixed to one side of the handle by adhesive.

[0013] Preferably, a guide block is provided at the lower end of the blade, and a limiting ridge is provided at the front position of the lower end of the fixing plate, and the guide block passes through the limiting ridge and enters into the gap.

[0014] Preferably, both the front and rear sides of the handle are provided with recesses for gripping.

[0015] More preferably, at least one protrusion is provided at the upper end of the sealing member, and a mounting groove corresponding to the sealing member is provided on the sealing cover. The positioning structure is at least one notch provided on the sealing cover, and the notch is located above the mounting groove. In the blocking state, the protrusion is inserted upward into the notch.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By rotating and installing the sealing member on the cover, the sealing member can seal the end of the gap in the blocking state to prevent the blade from separating from the handle from the end of the gap. When the blade needs to be pulled out or replaced, the sealing member is pushed by hand to disengage the positioning block from the positioning groove, and then the sealing member is rotated. The sealing member will not block the end of the gap, and the blade can be pulled out from the end of the gap, avoiding the safety hazard of the blade accidentally injuring the worker during the removal of the cover. In addition, the unlocking and relocking of the sealing member is very labor-saving and convenient, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0019] Figure 1 This is an overall structural diagram from an upper side perspective of a putty scraper involved in one embodiment of the present application;

[0020] Figure 2 This is a bottom side view of the overall structure of a putty scraper involved in one embodiment of the present application;

[0021] Figure 3 This is a schematic structural diagram of a sealing member in one embodiment of the present application;

[0022] Figure 4 This is a schematic structural diagram of a cover in one embodiment of the present application;

[0023] Figure 5 This is an overall structural diagram of the putty scraper after the cover is removed in one embodiment of the present application;

[0024] Figure 6 Schematic diagram of the process of unlocking the sealing member in one embodiment of the present application.

[0025] Markings in the accompanying drawings are: 1-handle, 11-recess, 12-fixed plate, 121-limiting convex strip, 13-gap, 2-cover, 21-positioning groove, 22-axle seat, 23-axle rod, 24-convex rib, 3-sealing piece, 31-lower connecting block, 311-first extension part, 312-second extension part, 32-upper connecting block, 321-strip groove, 33-positioning block, 4-blade.

[0026] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] 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 embodiments 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 making creative efforts are within the scope of protection of the present invention.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] Furthermore, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include at least one such feature. Furthermore, the technical solutions of various embodiments may be combined, but only if they are achievable by persons of ordinary skill in the art. If a combination of technical solutions contradicts or is unachievable, such combination shall be deemed non-existent and outside the scope of protection claimed by this utility model.

[0030] Specific implementation plan: see Figures 1-6 The utility model is a blade side stop structure of a putty scraper. The putty scraper includes a handle 1, a fixing plate 12 is provided on the handle 1, and a gap 13 is provided between the fixing plate 12 and the handle 1 for one end of a blade 4 to be inserted and fixed. At least one of the left and right ends of the handle 1 is provided with a cover 2, and at least one of the left and right ends of the gap 13 extends to the cover 2. The side stop structure of the blade 4 includes a sealing member 3 and a positioning structure provided on the cover 2. The sealing member 3 has a blocking state fixed on the positioning structure and an unlocking state detached from the positioning structure. In the blocking state, one end of the sealing member 3 blocks the end of the gap 13 and prevents the blade 4 from detaching from the handle 1 from the end of the gap 13. In the unlocking state, the end of the gap 13 is exposed.

[0031] As a preferred implementation of this embodiment, please refer to Figure 1 and Figure 2 It can be seen that the fixing plate 12 is arranged on the lower end surface of the handle 1, the positioning structure is at least one positioning groove 21 arranged at the lower end of the cover 2, and at least one positioning block 33 is provided on the sealing member 3. In the blocking state, the positioning block 33 is matched and inserted into the positioning groove 21.

[0032] In this embodiment, in order to make the connection between the sealing member 3 and the cover 2 more stable, two positioning blocks 33 and two positioning grooves 21 are provided, and the two positioning blocks 33 are arranged at intervals from each other.

[0033] See also Figure 4 It can be seen that in this embodiment, two shaft seats 22 are arranged at a front-to-rear interval on one side of the lower end of the cover 2, a shaft rod 23 is fixed between the two shaft seats 22, and a strip groove 321 for the shaft rod 23 to pass through is provided on the sealing member 3. In the blocking state, the shaft rod 23 is located at the lower end of the strip groove 321. In the unlocking state, the shaft rod 23 is located at the upper end of the strip groove 321, and the sealing member 3 can rotate around the shaft rod 23.

[0034] Then, see Figure 3 It can be seen that in this embodiment, the sealing member 3 includes an integrally formed lower connecting block 31 and an upper connecting block 32, the lower connecting block 31 is located below the upper connecting block 32, wherein the strip groove 321 extends vertically and is arranged on the upper connecting block 32, the lower connecting block 31 is provided with a first extension portion 311, and the positioning block 33 is fixed on the first extension portion 311. In the blocking state, the lower end of the first extension portion 311 abuts against the lower end of the cover 2, and the side end of the first extension portion 311 is used to cooperate with the end of the gap 13 to block the gap 13. In the unlocking state, the first extension portion 311 leaves the lower end of the cover 2.

[0035] Here, the first extension portion 311 is provided to allow the positioning block 33 to be installed, and to cooperate with and block the end of the gap 13 on the other hand.

[0036] See also Figure 6 , the unlocking principle of the sealing member 3 is described below:

[0037] When the sealing member 3 needs to be unlocked, the blade 4 needs to be turned upwards, that is, the handle 1 needs to be turned 180 degrees, which makes the operation more convenient ( Figure 6 The schematic diagram in the figure is a schematic diagram from the upper side after the cover 2 is turned over, at which time the sealing member 3 is located at the top); then, the upper connecting block 32 is pushed upward, at which time the positioning block 33 is disengaged from the positioning groove 21 upward, and the shaft 23 is translated to the end of the strip groove 321 away from the lower connecting block 31; then, the lower connecting block 31 is moved by hand, and the sealing member 3 is driven to rotate counterclockwise around the shaft 23 until the lower connecting block 31 is located below the upper connecting block 32. At this time, the end of the gap 13 is exposed, and the worker can drive the blade 4 to be pulled out laterally from the end of the gap 13.

[0038] In addition, in this embodiment, a guide block is provided at the lower end of the blade 4 , and a limiting ridge 121 is provided at the front lower end of the fixing plate 12 . The guide block passes through the limiting ridge 121 and enters the gap 13 .

[0039] Here, the structural design of the guide block and the limiting ridge 121 belongs to the prior art and is only briefly described here. Figure 5 As can be seen, when the blade 4 needs to be installed on the handle 1, the rear end of the blade 4 is directly and forcefully inserted into the front end of the gap 13. Since the fixing plate 12 and the handle 1 are both made of plastic, the fixing plate 12 will bend slightly upward, and the guide block on the blade 4 can also pass through the gap between the limiting ridge 121 and the handle 1. When the guide block enters the gap 13, the fixing plate 12 recovers its deformation, and the guide block and the limiting ridge 121 cooperate to prevent the blade 4 from separating from the front of the handle 1.

[0040] Note that before reinstalling the blade 4, it is generally necessary to switch the sealing member 3 back to the blocking state. Similarly, the blade 4 needs to be facing up first. Then, the worker needs to push the lower connecting block 31 by hand and drive the sealing member 3 to rotate clockwise around the shaft 23, so that the lower connecting block 31 is located above the upper connecting block 32; then, the lower connecting block 31 is pressed down to insert the positioning block 33 into the positioning groove 21, and the blocking state switching is completed.

[0041] Note that in this embodiment, the positioning block 33 and the positioning groove 21 are generally an interference fit. After the positioning block 33 is inserted into the positioning groove 21, a slight force is required to drive the positioning block 33 out of the positioning groove 21. This prevents the positioning block 33 from automatically separating from the positioning groove 21 during use of the tool, making the structure more stable and the installation of the blade 4 more secure.

[0042] See also Figure 3 It can be seen that in this embodiment, a second extension portion 312 is further provided on the lower connecting block 31, and the second extension portion 312 is arranged on the front side or the rear side of the upper connecting block 32. In the blocking state, the second extension portion 312 abuts against the lower end of the cover 2, and in the unlocking state, the second extension portion 312 leaves the lower end of the cover 2.

[0043] Here, the provision of the second extension portion 312 can increase the contact area between the sealing member 3 and the lower end of the cover 2 in the blocking state, thereby making the installation structure of the sealing member 3 more stable.

[0044] Then, see Figure 4 and Figure 5 It can be seen that in this embodiment, the handle 1 is hollow inside, and at least one of the left and right ends is provided with a through opening, and a rib 24 is provided on one side of the cover 2, which is matched and snapped into the through opening.

[0045] Here, the handle 1 is configured to be hollow inside, which can reduce the weight of the handle 1 and the cost of raw materials without affecting the structural strength of the handle 1. This is a prior art.

[0046] In addition, in this embodiment, to increase the aesthetics and symmetry of the product, openings are provided on both ends of the handle 1, that is, covers 2 are installed on both ends of the handle 1. Of course, the blade 4 side stop structure only needs to be installed on one of the covers 2.

[0047] In addition, since the blade 4 side blocking structure is provided on the cover 2, there is no need to disassemble the cover 2. Therefore, the cover 2 can be fixed to one side of the handle 1 by adhesive, so that the overall structure will be more stable.

[0048] See also Figure 1 In order to facilitate the gripping of the handle 1, in this embodiment, recesses 11 for gripping are provided on both the front and rear sides of the handle 1.

[0049] The following is a brief description of another arrangement of the sealing member 3 (the above is Example 1, and this is Example 2): In this embodiment, at least one protrusion is provided at the upper end of the sealing member 3, and a mounting groove corresponding to the sealing member 3 is provided on the cover 2. The positioning structure is at least one notch provided on the cover 2, and the notch is located above the mounting groove. In the blocking state, the protrusion is inserted upward into the notch (not shown in the drawings).

[0050] Here, when it is necessary to unlock the sealing member 3, it is necessary to pull down the sealing member 3 (anti-slip grooves are provided on the outer surface of the sealing member 3) and make the protrusion disengage from the groove. At this time, the sealing member 3 can be rotated to expose the end of the gap 13, and then the blade 4 can be pulled out.

[0051] The above description of the blade side guard structure of a putty scraper of the present invention is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the description and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A blade side stop structure for a putty scraper, the putty scraper comprising a handle, a fixing plate provided on the handle, a gap provided between the fixing plate and the handle for inserting and fixing one end of the blade, at least one of the left and right ends of the handle being provided with a cover, at least one of the left and right ends of the gap extending to the cover, characterized in that: The blade side blocking structure includes a sealing member and a positioning structure arranged on the cover. The sealing member has a sealing state fixed on the positioning structure and an unlocking state detached from the positioning structure. In the sealing state, one end of the sealing member blocks the end of the gap and prevents the blade from detaching from the handle from the end of the gap. In the unlocking state, the end of the gap is exposed.

2. The blade side stop structure of a putty scraper according to claim 1, characterized in that: The fixing plate is arranged on the lower end surface of the handle, the positioning structure is at least one positioning groove arranged at the lower end of the cover, and the sealing member is provided with at least one positioning block. In the blocking state, the positioning block is matched and inserted into the positioning groove.

3. The blade side stop structure of a putty scraper according to claim 2, characterized in that: Two shaft seats are arranged at a front-to-rear interval on one side of the lower end of the covering cover, and a shaft rod is fixed between the two shaft seats. A strip groove is provided on the covering member for the shaft rod to pass through. In the blocking state, the shaft rod is located at the lower end of the strip groove. In the unlocking state, the shaft rod is located at the upper end of the strip groove, and the covering member can rotate around the shaft rod.

4. The blade side stop structure of a putty scraper according to claim 3, characterized in that: The sealing member includes an integrally formed lower connecting block and an upper connecting block, the lower connecting block is located below the upper connecting block, wherein the strip groove extends vertically and is arranged on the upper connecting block, the lower connecting block is provided with a first extension portion, the positioning block is fixed on the first extension portion, in the blocking state, the lower end of the first extension portion abuts against the lower end of the cover, the side end of the first extension portion is used to cooperate with the end portion of the gap to block the gap, and in the unlocking state, the first extension portion leaves the lower end of the cover.

5. The blade side stop structure of a putty scraper according to claim 4, characterized in that: The lower connecting block is further provided with a second extension portion, which is arranged on the front side or the rear side of the upper connecting block. In the blocking state, the second extension portion abuts against the lower end of the cover, and in the unlocking state, the second extension portion leaves the lower end of the cover.

6. The blade side stop structure of a putty scraper according to any one of claims 1 to 5, characterized in that: The handle is hollow inside, and at least one of the left and right ends is provided with a through opening. One side of the cover is provided with a convex rib, and the convex rib is matched and clamped in the through opening.

7. The blade side stop structure of a putty scraper according to any one of claims 1 to 5, characterized in that: The cover is fixed to one side of the handle by adhesive.

8. The blade side stop structure of a putty scraper according to claim 1, characterized in that: A guide block is provided at the lower end of the blade, and a limiting convex strip is provided at the front position of the lower end of the fixing plate. The guide block passes through the limiting convex strip and enters into the gap.

9. The blade side stop structure of a putty scraper according to claim 1, characterized in that: The front and rear sides of the handle are both provided with recessed positions for matching grip.

10. The blade side stop structure of a putty scraper according to claim 1, characterized in that: The upper end of the sealing member is provided with at least one protrusion, and the sealing cover is provided with a mounting groove corresponding to the sealing member. The positioning structure is at least one notch provided on the sealing cover, and the notch is located above the mounting groove. In the blocking state, the protrusion is inserted upward into the notch.

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