Downward pressing type combined putty knife

Abstract

The utility model relates to the technical field of putty knives, and discloses a press-down type combined putty knife which comprises a handle, a shovel blade is arranged at the lower end of the handle, a clamping mechanism is arranged in the handle and comprises a knife handle, an installation clamping groove and a threaded block, the upper surface of the knife handle is fixedly connected with an installation clamping block, and the installation clamping block is fixedly connected with the installation clamping groove. A limiting sliding groove is formed in the lower end of the inner wall of the mounting clamping groove, a connecting sliding groove is formed in the center of the inner top face of the mounting clamping groove, and a guide groove is formed in the middle of the inner wall of the connecting sliding groove. According to the putty knife, the putty knife is composed of the handle, the anti-skid block and the shovel blade, a user can conveniently use and maintain the putty knife through the simple structure, and therefore the user can easily master and operate the putty knife, tedious steps are not needed, and the working efficiency is improved; and therefore, a user can mount the shovel blade with a proper shape according to requirements.

Description

Technical Field

[0001] This utility model relates to the field of putty knife technology, and in particular to a down-pressing combination putty knife. Background Technology

[0002] A putty trowel is a tool used for plastering, smoothing, and filling gaps on surfaces such as walls and ceilings. It is commonly used in architectural decoration and detail finishing. It typically consists of a blade, a back, and a handle. Depending on its purpose and design, putty trowels can be divided into several types, such as flat trowels, curved blade trowels, and pointed trowels. Their main characteristics are ease of use and the ability to precisely control the thickness and smoothness of the plaster material, making them an indispensable tool in construction.

[0003] However, most traditional putty knives are one-piece or require manual disassembly and installation of the scraper blade, which is a cumbersome and time-consuming process. They also cannot change the blade to a suitable shape according to the needs of the usage scenario, thus reducing the scope of application of the putty knife.

[0004] Therefore, those skilled in the art have provided a down-pressing combination putty knife to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a push-down combination putty knife. This putty knife is equipped with a locking mechanism. Through the engagement of the mounting block and the positioning cone block, the scraper blade can be locked in place. Users can quickly replace and install the scraper blade by pressing the connecting slide rod, thus saving replacement time and improving work efficiency. Simply pressing the slide rod allows for adjustment of the scraper blade tension and quick replacement, reducing operational difficulty. The locking limit of the hand-tightening block completes the installation and fixation of the scraper blade, preventing accidental detachment or displacement.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A push-down combination putty knife includes a handle, a scraper blade at the lower end of the handle, and a locking mechanism inside the handle. The locking mechanism includes a handle, a mounting groove, and a threaded block. The mounting block is fixedly connected to the upper surface of the handle. A limit groove is formed at the lower end of the inner wall of the mounting groove. A connecting groove is formed at the center of the top surface of the mounting groove. A guide groove is formed in the middle of the inner wall of the connecting groove. A connecting rod is slidably connected to the inner wall of the connecting groove. A guide block is fixedly connected to the middle of the outer wall of the connecting rod. A return spring is sleeved on the lower end of the outer wall of the connecting rod. A limit slider is fixedly connected to the lower surface of the connecting rod. A positioning cone is fixedly connected to the inner walls of the front and rear ends of the limit slider. A push plate is fixedly connected to the upper surface of the connecting rod. A hand-tightening block is threaded onto the outer wall of the threaded block.

[0008] Through the above technical solution, the putty knife is composed of a handle, a non-slip block, and a scraper blade. The simple structure makes it easy for users to use and maintain, allowing them to easily master and operate it without complicated steps, thus improving work efficiency. Furthermore, it allows users to install scraper blades of suitable shapes according to their needs.

[0009] Furthermore, the handle is fixedly connected to the upper surface of the shovel blade, and the mounting block is slidably connected to the mounting slot;

[0010] The above technical solution enables users to install the shovel blade on the handle.

[0011] Furthermore, the mounting slot is located at the center of the lower surface of the handle, and the limiting slider slides inside the limiting groove;

[0012] The above technical solution enables the connecting slide rod to move the position of the limiting slide block, thereby allowing the mounting block to engage with the positioning cone block on the limiting slide block.

[0013] Furthermore, the threaded block is fixedly connected to the center of the upper surface of the handle;

[0014] The above technical solution enables the hand-tightening block to be installed on the handle by means of threaded engagement with the threaded block.

[0015] Furthermore, a plurality of extrusion strips are fixedly connected to the upper surface of the threaded block, and a tapered extrusion groove is provided at the upper end of the inner wall of the hand-tightening block;

[0016] Through the above technical solution, the extrusion strip can be extruded by the conical extrusion groove to complete the extrusion limit with the connecting slide rod, thereby completing the positioning and fixing of the connecting slide rod.

[0017] Furthermore, the guide block slides inside the guide groove;

[0018] The above technical solution enables the guide block to apply pressure to the reset spring, thereby resetting the connecting slide rod.

[0019] Furthermore, the outer wall of the handle is fitted with an anti-slip block, and a storage groove is provided in the middle of the lower surface of the anti-slip block;

[0020] The above technical solution enables the anti-slip block to be attached to the handle via a storage slot.

[0021] Furthermore, threaded knobs are provided at the lower part of the front and rear ends of the anti-slip block;

[0022] The above technical solution uses a threaded knob to lock and fix the position of the anti-slip block.

[0023] This utility model has the following beneficial effects:

[0024] 1. This utility model proposes a down-pressing combination putty knife, which, compared with most traditional putty knives, is equipped with a snap-fit ​​mechanism. Through the engagement between the mounting block and the positioning cone block, the scraper blade can be snapped in place. Users can quickly replace and install the scraper blade by pressing the connecting slide rod, thus saving replacement time and improving work efficiency. Simply pressing the slide rod can adjust the tightness of the scraper blade and make it easy to replace quickly, reducing the difficulty of operation. The locking limit of the hand-tightening block completes the installation and fixation of the scraper blade, preventing accidental detachment or displacement.

[0025] 2. The present invention proposes a down-pressing combination putty knife, which, compared with most traditional putty knives, consists of a handle, a non-slip block, and a scraper blade. The simple structure makes it easier for users to use and maintain, allowing them to easily master and operate it without complicated steps, thus improving work efficiency. Furthermore, it allows users to install scraper blades of suitable shapes according to their needs. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a down-pressing combined putty knife proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the anti-slip block structure of a down-pressing combined putty knife proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the handle structure of a push-down combined putty knife proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the guide groove structure of a down-pressing combined putty knife proposed in this utility model.

[0030] Legend:

[0031] 1. Handle;

[0032] 2. Snap-fit ​​mechanism; 201. Tool holder; 202. Mounting block; 203. Mounting slot; 204. Limiting slide groove; 205. Connecting slide groove; 206. Guide groove; 207. Connecting slide rod; 208. Guide block; 209. Return spring; 2010. Limiting slider; 2011. Positioning cone block; 2012. Press plate; 2013. Threaded block; 2014. Extrusion strip; 2015. Hand-tightening block; 2016. Conical extrusion groove;

[0033] 3. Anti-slip block; 4. Storage slot; 5. Scraper blade; 6. Threaded knob. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] One embodiment provided by this utility model:

[0036] Reference Figure 1 , 34. A push-down combination putty knife, comprising a handle 1, a scraper blade 5 at the lower end of the handle 1, and a locking mechanism 2 inside the handle 1. The locking mechanism 2 includes a handle 201, a mounting groove 203, and a threaded block 2013. A mounting block 202 is fixedly connected to the upper surface of the handle 201. A limit groove 204 is formed at the lower end of the inner wall of the mounting groove 203. A connecting groove 205 is formed at the center of the inner top surface of the mounting groove 203. A guide groove 206 is formed in the middle of the inner wall of the connecting groove 205. A connecting rod 207 is slidably connected to the inner wall of the connecting groove 205. A guide block 208 is fixedly connected to the middle of the outer wall of the connecting rod 207. A return spring 209 is fitted at the lower end of the wall. A limit slider 2010 is fixedly connected to the lower surface of the connecting slide rod 207. A positioning cone block 2011 is fixedly connected to the inner wall of the front and rear ends of the limit slider 2010. A pressing piece 2012 is fixedly connected to the upper surface of the connecting slide rod 207. A hand-tightening block 2015 is threaded onto the outer wall of the threaded block 2013. The putty knife is composed of a handle 1, an anti-slip block 3, and a scraper blade 5. The simple structure makes it easy for users to use and maintain the knife, allowing them to easily master and operate it without complicated steps, thus improving work efficiency. Furthermore, it allows users to install scraper blades 5 of suitable shapes according to their needs.

[0037] Reference Figure 2 , 3 4. The handle 201 is fixedly connected to the upper surface of the blade 5. The mounting block 202 is slidably connected to the mounting groove 203, allowing the user to install the blade 5 on the handle 201. The mounting groove 203 is located at the center of the lower surface of the handle 1. The limiting slider 2010 slides inside the limiting groove 204, allowing the connecting rod 207 to move the limiting slider 2010. This allows the mounting block 202 to engage with the positioning cone 2011 on the limiting slider 2010. The threaded block 2013 is fixedly connected to the center of the upper surface of the handle 1. The hand-tightening block 2015 can be installed on the handle 1 by threading it with the threaded block 2013. Multiple extrusion strips 2014 are fixedly connected to the upper surface of the threaded block 2013. A tapered extrusion groove 2016 is provided at the upper end of the inner wall of the hand-tightening block 2015, so that the extrusion strips 2014 can be extruded by the tapered extrusion groove 2016 to complete the extrusion limit with the connecting slide rod 207, thereby completing the positioning and fixing of the connecting slide rod 207. The guide block 208 slides inside the guide groove 206, so that the guide block 208 can apply pressure to the return spring 209, thereby resetting the connecting slide rod 207.

[0038] Reference Figure 1 , 2The outer wall of the handle 1 is fitted with an anti-slip block 3. The lower surface of the anti-slip block 3 has a storage groove 4 in the middle, so that the anti-slip block 3 can be fitted and locked onto the handle 1 through the storage groove 4. The front end and the lower part of the rear end of the anti-slip block 3 are provided with threaded knobs 6, and the position of the anti-slip block 3 is locked and fixed by setting the threaded knobs 6.

[0039] Working principle: First, press the button 2012 to push the connecting slide 207 downward, causing the limiting slider 2010 to slide downward in the limiting groove 204. Then, the mounting block 202 slides into the handle 1 through the mounting groove 203. Releasing the pressure on the button 2012 causes the return spring 209 to reset the connecting slide 207, causing the positioning cone 2011 to engage with the mounting block 202. Then, rotate the hand-tightening block 2015, causing the conical extrusion groove 2016 to engage with the extrusion strip 2014, thus limiting the extrusion of the connecting slide 207. Finally, the anti-slip block 3 is installed to protect the handle 1.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A putty knife of the push-down type comprising a handle (1), characterized in that: The lower end of the handle (1) is provided with a shovel blade (5). The handle (1) is provided with a locking mechanism (2). The locking mechanism (2) includes a handle (201), a mounting slot (203), and a threaded block (2013). The upper surface of the handle (201) is fixedly connected with a mounting block (202). The lower end of the inner wall of the mounting slot (203) is provided with a limiting groove (204). The center of the top surface of the mounting slot (203) is provided with a connecting groove (205). The middle part of the inner wall of the connecting groove (205) is provided with a guide groove (206). 5) The inner wall of the connecting slide rod (207) is slidably connected to the connecting slide rod (207). The middle part of the outer wall of the connecting slide rod (207) is fixedly connected to the guide block (208). The lower end of the outer wall of the connecting slide rod (207) is fitted with a return spring (209). The lower surface of the connecting slide rod (207) is fixedly connected to the limit slider (2010). The inner walls of the front and rear ends of the limit slider (2010) are fixedly connected to the positioning cone block (2011). The upper surface of the connecting slide rod (207) is fixedly connected to the pressing piece (2012). The outer wall of the threaded block (2013) is threaded with a hand-tightening block (2015).

2. A push-down type combination putty knife according to claim 1, characterized in that: The handle (201) is fixedly connected to the upper surface of the blade (5), and the mounting block (202) is slidably connected to the mounting slot (203).

3. A push-down type combination putty knife according to claim 1, characterized in that: The mounting slot (203) is located at the center of the lower surface of the handle (1), and the limiting slider (2010) slides inside the limiting groove (204).

4. A push-down type combination putty knife according to claim 1, characterized in that: The threaded block (2013) is fixedly connected to the center of the upper surface of the handle (1).

5. A push-down combination putty knife according to claim 1, wherein: The upper surface of the threaded block (2013) is fixedly connected with multiple extrusion strips (2014), and the upper end of the inner wall of the hand-tightening block (2015) is provided with a conical extrusion groove (2016).

6. A push-down combination putty knife according to claim 1, wherein: The guide block (208) slides inside the guide groove (206).

7. A push-down combination putty knife according to claim 1, wherein: The outer wall of the handle (1) is fitted with an anti-slip block (3), and a storage groove (4) is provided in the middle of the lower surface of the anti-slip block (3).

8. A push-down combination putty knife according to claim 7, wherein: The anti-slip block (3) has threaded knobs (6) at the lower part of its front and rear ends.

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