Adjustable wall surface external corner puller

By designing an adjustable wall corner puller, which uses a quick-extension rod and a rotating connection and telescopic fixing device for the metal plate, the problem of existing corner pullers being unable to rotate and extend has been solved, thus improving construction efficiency.

CN224078606UActive Publication Date: 2026-04-03WANGDA GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The existing corner pullers have ends that cannot rotate, and the rods are too short and cannot extend or retract, resulting in low construction efficiency.

Method used

An adjustable wall corner puller was designed, which uses a quick-extension rod and a bent metal plate. The rod is rotatably connected to the metal plate via a rotating shaft. Combined with a telescopic fixing device, it can achieve telescopic and rotational adjustment. The metal plate is made of stainless steel and the bends are symmetrical. The quick-extension rod consists of two sections of stainless steel tubes with an internal spring. The telescopic fixing device is fixed by a sleeve or screw.

Benefits of technology

It enables automatic rotation and length adjustment of the corner puller, improving leveling efficiency, simplifying the construction process, and increasing work efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224078606U_ABST
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Abstract

The utility model relates to the technical field of building decoration construction equipment, in particular to an adjustable wall surface external corner puller which comprises a rapid telescopic rod and a metal plate with a bend, the rapid telescopic rod is rotatably connected with the metal plate through a rotating shaft, a telescopic fixing device is arranged on the rapid telescopic rod, and the metal plate is provided with a fixing device. The telescopic fixing device controls the rapid telescopic rod to stretch out and draw back, the rotating shaft comprises a bolt and a bearing, a bearing outer ring of the bearing is fixedly connected with the bend of the metal plate, the bolt is inserted into the bearing and fixedly connected with a bearing inner ring, and the bolt is fixedly connected with one end of the rapid telescopic rod. According to the technical scheme, automatic rotation and telescopic adjustment of the length of the angle puller are achieved, and the leveling efficiency of the angle puller is improved.
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Description

Technical Field

[0001] This utility model relates to the field of construction decoration and renovation equipment technology, and in particular to an adjustable wall corner puller. Background Technology

[0002] In interior decoration and renovation construction, leveling is usually required to make the walls flat. Leveling the external corners of the walls is a key task to ensure a flat and aesthetically pleasing surface. However, existing corner pullers have non-rotating ends and short, non-extension rods, requiring construction workers to climb ladders, which is time-consuming, labor-intensive, and inefficient.

[0003] Therefore, it is necessary to propose an adjustable corner puller for external wall corners to improve the leveling efficiency of the corner puller. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing corner pullers cannot rotate or extend, resulting in low leveling efficiency. An adjustable wall corner puller is provided.

[0005] The technical solution of this utility model is:

[0006] An adjustable wall corner puller includes a quick-extension rod and a bent metal plate. The quick-extension rod is rotatably connected to the metal plate via a rotating shaft. The quick-extension rod is equipped with a telescopic fixing device, which controls the extension and retraction of the quick-extension rod.

[0007] The rotating shaft includes bolts and bearings. The outer ring of the bearing is fixedly connected to the bent metal plate. The bolt is inserted into the bearing and fixedly connected to the inner ring of the bearing. The bolt is fixedly connected to one end of the quick-release rod.

[0008] Furthermore, the metal plate is made of stainless steel, and the bends on the metal plate are located at the line of symmetry of the metal plate.

[0009] Furthermore, the quick-extension rod is composed of two stainless steel tubes, with a spring inside each tube. The two stainless steel tubes compress the spring to retract the quick-extension rod.

[0010] Furthermore, the telescopic fixing device is a sleeve with an internal thread inside, and the diameter of the internal thread increases from one end of the threaded sleeve to the other end.

[0011] Furthermore, the telescopic fixing device is a screw, and several fixing holes with corresponding positions are opened on the two stainless steel tubes. The screw passes through the overlapping fixing holes on the two stainless steel tubes at the same time to fix the length of the telescopic rod.

[0012] Furthermore, the fixing holes on the same stainless steel pipe are evenly distributed along the axial direction.

[0013] Furthermore, the bending on the metal plate divides the metal plate into left and right pieces, which are identical in shape and size and symmetrical about the bending.

[0014] Furthermore, the metal plate has a thickness of 0.2-1 mm and a bending angle of 90 degrees.

[0015] This utility model discloses an adjustable wall corner puller. A bent metal plate is used to level the external corners of a wall. A quick-extension rod can extend or shorten, thus improving the low leveling efficiency caused by insufficient length. The metal plate is rotatably connected to the quick-extension rod. During corner leveling, the metal plate can rotate relative to the quick-extension rod according to the actual situation, thereby adjusting the appropriate angle for convenient leveling. A telescopic fixing device controls the extension and retraction length of the quick-extension rod. Bolts and bearings cooperate to achieve rotation. The structure is simple, installation is convenient, and worker operation is easy. Compared with traditional technology, this technical solution realizes automatic rotation and length adjustment of the corner puller, improving its leveling efficiency. Attached Figure Description

[0016] Figure 1 This is a structural reference diagram of the present utility model;

[0017] Figure 2 This is a view of the bearing and bolt assembly of this utility model;

[0018] Figure 3 This is a combined view of the quick-extension rod and telescopic fixing device of this utility model;

[0019] Figure 4 This is a reference diagram of the quick-extension rod structure of this utility model;

[0020] Figure 5 This is a structural diagram of the telescopic fixing device according to Embodiment 1 of this utility model;

[0021] Figure 6 This is a structural reference diagram of Embodiment 2 of the present utility model.

[0022] Reference numerals: 1. Metal plate; 2. Left piece; 3. Right piece; 4. Bearing; 5. Bolt; 6. Quick telescopic rod; 7. Telescopic fixing device; 8. Spring; 9. Fixing hole. Detailed Implementation

[0023] To make the technical means, technical features, utility model purpose and technical effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0024] Example 1:

[0025] like Figure 1 and Figure 2 As shown, this embodiment provides an adjustable wall corner puller, including a quick-extension rod 6 and a bent metal plate 1. The quick-extension rod 6 is rotatably connected to the metal plate 1 via a rotating shaft. The quick-extension rod 6 is provided with a telescopic fixing device 7, which controls the extension and retraction of the quick-extension rod 6. The rotating shaft includes a bolt 5 and a bearing 4. The outer ring of the bearing 4 is fixedly connected to the bent metal plate 1 by welding. The bolt 5 is inserted into the bearing 4 and fixedly connected to the inner ring of the bearing 4 by welding. The bolt 5 is fixedly connected to one end of the quick-extension rod 6 by screws or welding.

[0026] Preferably, the metal plate 1 is made of stainless steel, and the bend on the metal plate 1 is located at the line of symmetry of the metal plate 1. Preferably, the bend on the metal plate 1 divides the metal plate 1 into a left piece 2 and a right piece 3. The left piece 2 and the right piece 3 are exactly the same in shape and size and are symmetrical about the bend. Preferably, the thickness of the metal plate 1 is 0.2-1 mm, and the bending angle is 90 degrees. The metal plate 1 is the main structural component used for leveling external corners. Its left piece 2 and right piece 3 are symmetrical to facilitate the leveling of external corners. The thickness of the metal plate 1 is 0.2-1 mm to reduce weight and facilitate construction. The 90-degree bending angle can adapt to the leveling of external corners of most walls.

[0027] Preferred, such as Figure 3 As shown, the quick-release telescopic rod 6 is composed of two sections of stainless steel tubing, as... Figure 4 As shown, a spring 8 is installed inside the stainless steel tube. Two sections of stainless steel tube compress the spring 8 to retract the rapid telescopic rod 6. The two stainless steel tubes are connected by nesting. Preferably, the telescopic fixing device 7 is a sleeve with an internal thread. The diameter of the internal thread increases from one end of the threaded sleeve to the other. Simultaneously, the stainless steel tube also has an external thread that matches the threaded sleeve. Figure 5 As shown, as the threaded sleeve rotates, the end with the smaller diameter of the internal thread gradually squeezes the outer stainless steel tube, thereby squeezing the inner stainless steel tube and increasing the friction between the two stainless steel tubes, thus achieving relative fixation of the two stainless steel tubes.

[0028] When using, such as Figure 1As shown, the bent metal plate 1 is used to level the external corner of the wall. The quick-release telescopic rod 6 can be extended or shortened, thereby improving the problem of low leveling efficiency caused by insufficient length. At the same time, the metal plate 1 and the quick-release telescopic rod 6 are rotatably connected. When leveling the external corner, the metal plate 1 can rotate relative to the quick-release telescopic rod 6 according to the actual situation, thereby adjusting the appropriate angle to facilitate the leveling work. The telescopic fixing device 7 can control the extension and retraction length of the quick-release telescopic rod 6. The bolt 5 and the bearing 4 cooperate with each other to achieve rotation. The structure is simple, the installation is convenient, and it is convenient for workers to operate. Compared with traditional technology, this technical solution realizes the automatic rotation and length extension and retraction adjustment of the corner puller, improving the leveling efficiency of the corner puller.

[0029] Example 2:

[0030] The similarities between this embodiment and Embodiment 1 will not be repeated here. The differences are as follows: Figure 6 As shown, preferably, the telescopic fixing device 7 is a screw, and several corresponding fixing holes 9 are opened on the two stainless steel tubes. The screw passes through the overlapping fixing holes 9 on the two stainless steel tubes simultaneously to fix the length of the quick telescopic rod 6. Preferably, the fixing holes 9 on the same stainless steel tube are evenly distributed along the axial direction.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent changes and modifications made in accordance with the scope of the claims of this utility model should fall within the technical scope of this utility model.

Claims

1. An adjustable wall corner pull angle device, characterized by: The utility model relates to a quick retractable rod (6) and a metal plate (1) with a bend, the quick retractable rod (6) is rotatably connected with the metal plate (1) through a rotating shaft, the quick retractable rod (6) is provided with a telescopic fixing device (7), and the telescopic fixing device (7) controls the telescopic quick retractable rod (6). The rotating shaft comprises a bolt (5) and a bearing (4), the outer ring of the bearing (4) is fixedly connected with the bend of the metal plate (1), the bolt (5) is inserted into the bearing (4) and fixedly connected with the inner ring of the bearing (4), and one end of the bolt (5) is fixedly connected with the quick retractable rod (6).

2. The adjustable wall corner pull angle of claim 1, wherein: The metal plate (1) is made of stainless steel, and the bend on the metal plate (1) is located at the symmetry line of the metal plate (1).

3. The adjustable wall corner pull angle of claim 1, wherein: The quick retractable rod (6) is composed of two stainless steel pipes, a spring (8) is arranged in the stainless steel pipe, and the two stainless steel pipes extrude the spring (8) to realize the contraction of the quick retractable rod (6).

4. An adjustable wall corner bead corner puller according to claim 3, wherein: The telescopic fixing device (7) is a sleeve, an internal thread is arranged in the sleeve, and the diameter of the internal thread increases from one end of the threaded sleeve to the other end.

5. The adjustable wall corner pull angle of claim 3, wherein: The telescopic fixing device (7) is a screw, a plurality of fixing holes (9) corresponding to each other are formed on the two stainless steel pipes, the screw passes through the fixing holes (9) coinciding with each other on the two stainless steel pipes at the same time to realize the length fixing of the quick retractable rod (6).

6. An adjustable wall corner bead corner puller according to claim 5, wherein: The fixing holes (9) on the same stainless steel pipe are uniformly distributed along the axial direction.

7. The adjustable wall corner bead corner puller of claim 2, wherein: The bend on the metal plate (1) divides the metal plate (1) into a left piece (2) and a right piece (3), the left piece (2) and the right piece (3) are completely same in shape and size and symmetrical about the bend.

8. The adjustable wall corner bead corner puller of claim 2, wherein: The thickness of the metal plate (1) is 0.2-1 mm, and the angle of the bend is 90 degrees.