Connecting assembly of putty knife and telescopic rod

By designing locking bolts and angle locking components, the problems of unstable fixing of putty knife handles and inconvenient angle adjustment are solved, realizing a stable connection of the putty knife handle and stepless angle adjustment, thus improving the user experience.

CN224161378UActive Publication Date: 2026-04-24SHAOXING YIHERUI MACHINERY TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAOXING YIHERUI MACHINERY TECHNOLOGY CO LTD
Filing Date
2025-05-26
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing handle fixing method of putty knife is prone to wear, which leads to slippage and detachment. In addition, the angle adjustment is inconvenient, it cannot be steplessly adjusted, and it is difficult to clean.

Method used

The scraper handle and the connecting plate are connected by locking bolts, and the angle locking assembly is used to achieve a stable connection between the scraper handle and the telescopic rod. The angle can be steplessly adjusted by the adjusting rod.

Benefits of technology

It improves the connection stability of the scraper handle, reduces wear, prevents it from falling off, and enables stepless angle adjustment of the scraper handle and convenient cleaning.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224161378U_ABST
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Abstract

The utility model provides a connecting assembly of a putty knife and a telescopic rod, and relates to the field of putty scraper accessories, the connecting assembly comprises a scraper handle with a scraper, a base and a connecting plate, the connecting plate is arranged on the base, the base is connected with a rod assembly, two sides of the connecting plate are provided with U-shaped grooves with open tops, and the U-shaped grooves are connected with the telescopic rod. Connecting holes corresponding to the U-shaped grooves are formed in the two sides of the back of the scraper handle, and the connecting plate penetrates through the U-shaped grooves through locking bolts to be connected with the connecting holes. According to the connecting assembly of the putty knife and the telescopic rod, the scraper handle and the connecting plate are connected through the bolt, compared with buckle type connection, the mode is firmer, extrusion damage to the back of the scraper handle is small, and meanwhile the scraper handle does not fall off. And the putty on the connecting plate or the scraper handle is convenient to clean.
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Description

Technical Field

[0001] This utility model relates to the technical field of putty scraper accessories, specifically a connection component between a putty scraper and a telescopic rod. Background Technology

[0002] A putty scraper is a tool used for applying putty to walls. It mainly consists of a handheld handle and a scraper assembly, with the scraper mounted on the top of the handle. For example, a putty scraper with adjustable angles, as disclosed in Chinese Patent Publication No. CN218815033U, includes: "a scraper assembly, a telescopic rod, a retaining sleeve, a connector, a limit button, and an elastic element. The scraper assembly is mounted on the retaining sleeve, which has a connecting seat. The connecting seat has a connecting sleeve, and the outer ring of the connecting sleeve has a first groove. The first end of the connector has a groove, and the inner wall of the groove has a first limit protrusion. The connecting sleeve fits into the groove, and the first limit protrusion slides within the first groove. The middle of the connector has an installation groove, and the bottom of the installation groove has a first through hole. The limit button slides within the installation groove, and the limit button has a connecting shaft that passes through the first through hole and is circumferentially connected to the connecting seat. The elastic element is sleeved on the connecting shaft. The second end of the connector is fixedly connected to the telescopic rod."

[0003] The above-mentioned connection components have the following disadvantages:

[0004] First, the putty knife handle is slid horizontally into the retaining sleeve and secured by a wrench. However, with prolonged use, the wrench wears down and becomes slippery, and dents easily appear on the back of the putty knife handle, making it difficult to lock the wrench in place. The putty knife handle is also prone to sliding out during use, and putty tends to accumulate inside the retaining sleeve, making it difficult to lock the putty knife handle in place.

[0005] Secondly, the angle adjustment uses a ring-shaped toothed joint for fixed positioning. The angle adjustment can only be limited by the angle of the tooth, and it cannot be steplessly adjusted. Furthermore, it suffers from significant wear and is inconvenient to adjust. At the same time, putty easily accumulates between the teeth, making it difficult to tighten and clean. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a connection assembly between a putty knife and a telescopic rod, thus solving the problems mentioned in the background section.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model is implemented through the following technical solution: a connection assembly for a putty knife and a telescopic rod, including a putty knife handle with a scraper, a base, and a connecting plate. The connecting plate is disposed on the base, and the base is connected to the rod assembly. The two sides of the connecting plate are provided with U-shaped grooves with open tops. The two sides of the back of the putty knife handle are provided with connecting holes corresponding to the U-shaped grooves. The connecting plate is connected to the connecting holes by locking bolts passing through the U-shaped grooves.

[0010] Preferably, the back of the scraper handle is a flat surface that can fit against the connecting plate.

[0011] Preferably, the connecting plate is rotatably mounted on the base, and the base and the connecting plate are locked together by an angle locking assembly.

[0012] Preferably, the angle locking assembly includes several sets of positioning holes and positioning bolts. The positioning holes are opened on the connecting plate, and the several sets of positioning holes are arranged at equal angles around the center of the rotating shaft of the connecting plate. Nuts corresponding to the positioning holes are provided on both sides of the base. The positioning bolts are threaded onto the nuts, and their ends can extend into the positioning holes.

[0013] Preferably, the rod assembly includes a connecting rod, a fixed seat, an adjusting rod, a connecting rod, and a fixing bolt. The fixed seat is disposed at the top of the connecting rod, and the upper section of the base is rotatably disposed at the top of the fixed seat. The adjusting rod is vertically telescopically connected to the connecting rod, and the top of the adjusting rod is hinged to the lower end of the base through the connecting rod. The fixing bolt is threadedly connected to the connecting rod and corresponds to the adjusting rod.

[0014] Preferably, the bottom of the connecting rod is provided with a stud for connecting the support rod, and the top of the support rod is provided with a screw hole that matches the stud.

[0015] Preferably, the support rod can be a rod of fixed length or a telescopic rod.

[0016] (III) Beneficial Effects

[0017] This utility model provides a connection assembly between a putty knife and a telescopic rod. It has the following beneficial effects:

[0018] 1. The connection between the putty knife and the telescopic rod, and the connection between the knife handle and the connecting plate, is made by bolts, which is more secure than a snap-fit ​​connection. This reduces pressure damage to the back of the knife handle and prevents the knife handle from falling off. It also makes it easy to clean even if there is putty on the connecting plate or the knife handle.

[0019] 2. The connection assembly between the putty knife and the telescopic rod allows for adjustment of the angle of the putty knife handle by adjusting the length of the extended rod. The fixing bolt can be locked at any length of the extended rod, enabling stepless adjustment of the putty knife handle angle, which is quite convenient. Attached Figure Description

[0020] Figure 1 This is a schematic diagram showing the connection between the scraper handle and the connecting plate of this utility model;

[0021] Figure 2 This is a disassembly diagram of the scraper handle and connecting plate of this utility model;

[0022] Figure 3 This is a diagram showing the angle adjustment state of the scraper handle of this utility model.

[0023] In the diagram: 1. Base, 2. Connecting plate, 3. Scraper handle, 4. Flat surface, 5. U-shaped groove, 6. Locking bolt, 7. Connecting hole, 8. Positioning hole, 9. Positioning bolt, 10. Connecting rod, 11. Fixing seat, 12. Adjusting rod, 13. Connecting rod, 14. Fixing bolt, 15. Stud, 16. Support rod, 17. Screw hole. Detailed Implementation

[0024] This utility model embodiment provides a connection assembly between a putty knife and a telescopic rod, such as... Figure 1-3 As shown, it includes a scraper handle 3 with a scraper blade, a base 1, and a connecting plate 2, with the connecting plate 2 mounted on the base 1.

[0025] The back of the scraper handle 3 is a flat surface 4 that can fit against the connecting plate 2. The connecting plate 2 has U-shaped grooves 5 with open tops on both sides. Corresponding connecting holes 7 are formed on both sides of the back of the scraper handle 3. The connecting plate 2 is connected to the connecting holes 7 by a locking bolt 6 passing through the U-shaped grooves 5. The outer ring of the U-shaped groove 5 has an anti-slip texture. When the locking bolt 6 is tightened, the nut of the locking bolt 6 rests on the anti-slip texture, increasing the friction between them and preventing the locking bolt 6 from slipping.

[0026] The scraper handle 3 is connected to the connecting plate 2 by bolts, which is more secure than a snap-fit ​​connection, causes less pressure damage to the back of the scraper handle 3, and prevents the scraper handle 3 from falling off. It also makes it easy to clean even if there is putty on the connecting plate 2 or the scraper handle 3.

[0027] The connecting plate 2 is rotatably mounted on the base 1, and the base 1 and the connecting plate 2 are locked together by an angle locking assembly.

[0028] Specifically, such as Figure 1-2As shown, the angle locking assembly includes several sets of positioning holes 8 and positioning bolts 9. The positioning holes 8 are formed on the connecting plate 2, and the several sets of positioning holes 8 are arranged at equal angles around the center of the rotating shaft of the connecting plate 2. Nuts corresponding to the positioning holes 8 are provided on both sides of the base 1. The positioning bolts 9 are threaded onto the nuts, and their ends can extend into the positioning holes 8. The number of sets of positioning holes 8 is determined according to the angle requirements, such as... Figure 3 As shown, after the angle of the scraper handle 3 is adjusted, the positioning bolt 9 is pushed into the corresponding positioning hole 8 to complete the positioning of the scraper handle 3.

[0029] The back of the base 1 is connected to a rod assembly. The rod assembly includes a connecting rod 10, a fixed seat 11, an adjusting rod 12, a connecting rod 13, and a fixing bolt 14. The fixed seat 11 is located at the top of the connecting rod 10, and the upper section of the base 1 is rotatably located at the top of the fixed seat 11. The top of the connecting rod 10 has a telescopic groove along its length. The adjusting rod 12 is vertically telescopically connected to the telescopic groove of the connecting rod 10. The top of the adjusting rod 12 is hinged to the lower end of the base 1 through the connecting rod 13. The angle of the base 1 can be adjusted by adjusting the extension length of the adjusting rod 12. The connecting rod 10 has a threaded hole that communicates with the telescopic groove. The fixing bolt 14 is horizontally threaded onto the threaded hole of the connecting rod 10 and corresponds to the adjusting rod 12.

[0030] The angle of the scraper handle 3 can be adjusted by adjusting the length of the extension of the adjusting rod 12. The fixing bolt 14 can lock the adjusting rod 12 at any length, so that the angle of the scraper handle 3 can be adjusted steplessly and is relatively convenient.

[0031] The bottom of the connecting rod 10 is provided with a stud 15 for connecting the support rod 16, and the top of the support rod 16 is provided with a screw hole 17 that matches the stud 15.

[0032] The support rod 16 can be a rod of fixed length or a telescopic rod.

[0033] The telescopic rod can adopt a multifunctional decorative rod with publication number 2020200945011. The base 1 of this application is equivalent to the connector in patent 2020200945011, and the rest of the structure is the same as it.

[0034] The telescopic pole can also be a regular telescopic pole.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connection assembly between a putty knife and a telescopic rod, characterized in that: The device includes a scraper handle (3) with a scraper blade, a base (1), and a connecting plate (2). The connecting plate (2) is mounted on the base (1), and the base (1) is connected to the rod assembly. The connecting plate (2) has U-shaped grooves (5) with open tops on both sides. The scraper handle (3) has connecting holes (7) on both sides of its back that correspond to the U-shaped grooves (5). The connecting plate (2) is connected to the connecting holes (7) by a locking bolt (6) passing through the U-shaped grooves (5).

2. The connection assembly between a putty knife and a telescopic rod according to claim 1, characterized in that: The back of the scraper handle (3) is a flat surface (4) that can fit against the connecting plate (2).

3. The connection assembly between a putty knife and a telescopic rod according to claim 1, characterized in that: The connecting plate (2) is rotatably mounted on the base (1), and the base (1) and the connecting plate (2) are locked together by an angle locking assembly.

4. The connection assembly between a putty knife and a telescopic rod according to claim 3, characterized in that: The angle locking assembly includes several sets of positioning holes (8) and positioning bolts (9). The positioning holes (8) are opened on the connecting plate (2). The several sets of positioning holes (8) are arranged at equal angles around the center of the rotating shaft of the connecting plate (2). Nuts corresponding to the positioning holes (8) are provided on both sides of the base (1). The positioning bolts (9) are threaded onto the nuts and their ends can extend into the positioning holes (8).

5. The connection assembly between a putty knife and a telescopic rod according to claim 1, characterized in that: The rod assembly includes a connecting rod (10), a fixed seat (11), an adjusting rod (12), a connecting rod (13), and a fixing bolt (14). The fixed seat (11) is located at the top of the connecting rod (10), and the upper section of the base (1) is rotatably located at the top of the fixed seat (11). The adjusting rod (12) is vertically telescopically connected to the connecting rod (10), and the top of the adjusting rod (12) is hinged to the lower end of the base (1) through the connecting rod (13). The fixing bolt (14) is threadedly connected to the connecting rod (10) and corresponds to the adjusting rod (12).

6. The connection assembly between a putty knife and a telescopic rod according to claim 5, characterized in that: The bottom of the connecting rod (10) is provided with a stud (15) for connecting the support rod (16), and the top of the support rod (16) is provided with a screw hole (17) that matches the stud (15).

7. The connection assembly between a putty knife and a telescopic rod according to claim 6, characterized in that: The support rod (16) can be a rod of fixed length or a telescopic rod.

Citation Information

Patent Citations

  • An adjustable-angle putty scraper

    CN218815033U