A device for opening holes in walls

Abstract

This utility model relates to the field of wall opening protection technology, specifically, to a wall opening device. It includes a sleeve with a multi-framed edge on its lower side. Several positioning elements are arranged between the sleeve and the multi-framed edge. A pull rod is installed inside the multi-framed edge, with one end of the pull rod connected to the multi-framed edge via several plastic connecting rods. In use, the multi-framed edge is inserted into the opening, so that the sleeve and the opening are in contact with the wall surface, and the thick tube is in contact with the wall surface. The worker pulls the pull rod, causing the positioning elements to fix the thick tube in position between the opening and the wall surface. When the worker is applying plaster, the protective mesh can prevent plaster from entering the opening, and the thick tube can also limit the height of the plaster application, ensuring that the thickness of the plaster on the wall surface is the same as the thickness of the thick tube, allowing the worker to control the thickness of the plaster applied through the opening.

Description

Technical Field

[0001] This utility model relates to the field of wall opening protection technology, specifically, to a wall opening and hole leaving device. Background Technology

[0002] During the renovation of a house, holes will be made in the walls, such as socket holes and air conditioner holes. Currently, socket holes and air conditioner holes can be made after plastering or when the wall is in its rough state. However, the best time is to make the holes when the wall is in its rough state. This is because a lot of dust will be generated during the process of making the holes. If the holes are made after the wall has been painted, the painted wall will be easily contaminated and the wall will not be clean.

[0003] When applying putty to a wall, workers need to apply plaster powder multiple times to ensure a smooth surface. During this process, some plaster powder may get into the holes. This plaster can affect the holes, and when it's time to install a socket box or air conditioning pipe, the plaster that has hardened in the holes needs to be removed. However, during this removal process, the plaster pieces in the holes can cause the wall around the holes to crack, damaging the integrity of the wall near the holes and affecting its aesthetics. Utility Model Content

[0004] The purpose of this utility model is to provide a wall opening and hole leaving device to solve the problems mentioned in the background art.

[0005] To solve the above problems, this utility model provides a wall opening and hole leaving device, including a sleeve, with a multi-frame provided on the lower side of the sleeve, and a number of positioning members provided between the sleeve and the multi-frame. A pull rod is provided inside the multi-frame, and one end of the pull rod is connected to the multi-frame through a number of plastic connecting rods. When the pull rod is pulled, it moves the multi-frame closer to the sleeve. During the movement, the multi-frame causes the positioning members to deform and squeeze the side wall of the wall.

[0006] As a further improvement to this technical solution, the multi-frame is a polygonal structure, and a thin plastic rod is provided between every two positioning components. The positioning component includes a bottom inclined rod. One end of the thin plastic rod and the bottom inclined rod is fixed at the corner of the multi-frame, and one end of the thin plastic rod and the bottom inclined rod are both inclined upwards away from the axis.

[0007] As a further improvement to this technical solution, an upper inclined rod is fixed to the upper end of the bottom inclined rod, and the other end of the upper inclined rod away from the bottom inclined rod is inclined upward towards the sleeve axis, and the length of the bottom inclined rod is longer than the length of the upper inclined rod.

[0008] As a further improvement to this technical solution, a T-shaped block is fixed at the upper end of the upper inclined rod, and several T-shaped grooves with the same shape as the T-shaped block are opened in an annular array on the lower side of the sleeve. One end of the T-shaped groove passes through the outer wall of the sleeve and extends outward, and the T-shaped block is slidably inserted into the inside of the T-shaped groove.

[0009] As a further improvement to this technical solution, a slot is provided on the upper side of the T-shaped groove away from the outer wall of the sleeve. An arc-shaped plastic sheet is fixed on the upper side of the T-shaped block, and an inner groove is provided between the T-shaped block and the arc-shaped plastic sheet. When the T-shaped block is inserted into the T-shaped groove, the arc-shaped plastic sheet is squeezed and collapses downward. When the arc-shaped plastic sheet enters the slot, the arc-shaped plastic sheet contacts the side wall of the slot.

[0010] As a further improvement to this technical solution, the bottom inclined rod and the upper inclined rod are connected by symmetrically fixed inclined plates on the side away from the sleeve axis. One end of the two inclined plates is far away from each other, and several metal cones are fixed between the two inclined plates.

[0011] As a further improvement to this technical solution, bending grooves are provided on the side of the connection position between the upper inclined rod and the T-block that is far from the sleeve axis, and on the side of the connection position between the bottom inclined rod and the upper inclined rod that is close to the sleeve axis.

[0012] As a further improvement to this technical solution, a thick tube is fixed on the upper side of the sleeve near the outer edge, and a protective mesh is snapped into the inside of the thick tube. After the multi-frame is inserted into the hole, one end of the thin plastic rod and the outer wall of the sleeve are in contact with the side wall of the hole, and one side of the thick tube is in contact with the wall surface.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In this wall opening and hole-keeping device, during use, the multi-frame is inserted into the hole, so that the sleeve and the hole are in contact with the wall surface, and the thickness tube is in contact with the wall surface. The worker pulls the lever to fix the thickness tube in the position of the hole and the wall surface by the positioning component. When the worker is applying plaster, the protective mesh can prevent plaster from entering the hole, and the thickness tube can also limit the height of the putty scraping, so that the thickness of the wall putty and the thickness of the thickness tube are the same, which makes it convenient for the worker to control the thickness of the putty applied through the hole. When it is necessary to disassemble, the worker pushes the multi-frame into the hole, so that the positioning component is in contact with the hole for positioning, which is convenient for the worker to install and disassemble. Attached Figure Description

[0015] Figure 1 This is one of the overall structural schematic diagrams of this utility model;

[0016] Figure 2This is the second schematic diagram of the overall structure of the utility model;

[0017] Figure 3 This is a partial cross-sectional structural diagram of the overall structure of the utility model.

[0018] Figure 4 This is a cross-sectional schematic diagram of the sleeve portion structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the sleeve part of the utility model;

[0020] Figure 6 This is a schematic diagram of the positioning component structure of the utility model;

[0021] Figure 7 This is one of the schematic diagrams of the device of this utility model installed in a hole;

[0022] Figure 8 This is the second schematic diagram of the structure of the utility model device installed inside the hole.

[0023] The meanings of the labels in the diagram are as follows:

[0024] 1. Sleeve; 11. Thickness tube; 12. T-slot; 13. Slot;

[0025] 2. Multi-framed frame; 21. Thin plastic rod; 3. Bottom slanted rod; 31. Top slanted rod; 32. T-block; 321. Arc-shaped plastic sheet; 33. Adhesive slanted plate; 34. Inward folding strip; 35. Metal cone; 4. Plastic connecting rod; 5. Pull ring; 6. Pull rod; 7. Protective mesh. Detailed Implementation

[0026] 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.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Example

[0028] Please see Figures 1-8 As shown, this embodiment provides a wall opening and hole-keeping device, including a sleeve 1. The sleeve 1 has various shapes and sizes, such as a square sleeve adapted to the size of a socket hole (e.g., ...). Figure 2 As shown), a circular shape that matches the size of the air conditioning vent (e.g. Figure 1 As shown in the figure, or other shapes (not shown in this solution), a thick tube 11 is fixed on the upper side of the sleeve 1 near the outer edge. The thickness of the thick tube 11 also has various sizes, such as 3mm, 5mm and other common thicknesses of wall putty layers on the market. A protective mesh 7 is snapped into the inside of the thick tube 11. The protective mesh 7 is a mesh plastic sheet whose shape matches the internal shape of the thick tube 11. The protective mesh 7 can block part of the putty when the worker is applying putty, preventing the putty from entering the inside of the hole. After the worker finishes applying the putty, the protective mesh 7 is removed from the thick tube 11, and then the putty adhering to the protective mesh 7 is removed before the protective mesh 7 is installed inside the thick tube 11.

[0029] A polygonal frame 2 is provided on the lower side of the sleeve 1. The polygonal frame 2 is a polygonal structure and is collinear with the central axis of the sleeve 1. A pull rod 6 is provided inside the polygonal frame 2. One end of the pull rod 6 is connected to the polygonal frame 2 by several plastic connecting rods 4. The connection position between the plastic connecting rods 4 and the polygonal frame 2 is located at the corner inside the polygonal frame 2. One end of the pull rod 6 passes through the protective mesh 7 and is fixed with a pull ring 5. Several positioning parts are provided between the sleeve 1 and the polygonal frame 2. When the worker pulls the pull rod 6 by pulling the pull ring 5, the pull rod 6 moves the polygonal frame 2 closer to the sleeve 1. During the movement, the polygonal frame 2 causes the positioning parts to deform and squeeze the side wall of the wall. The entire device is fixed in the hole by several positioning parts and the polygonal frame 2. In this way, the sleeve 1 can be fixed at the connection position between the hole and the wall to prevent the sleeve 1 and the thick tube 11 from shifting.

[0030] To facilitate positioning of the multi-frame 2 when inserted into the hole, a thin plastic rod 21 is provided between every two positioning pieces. One end of the thin plastic rod 21 is fixed at the corner of the multi-frame 2, and the other end of the thin plastic rod 21 is inclined upwards away from the axis. Figure 7 As shown, when the polygonal frame 2 is inserted into the hole, one end of the thin plastic rod 21 contacts the side wall of the hole. At this time, the friction between the thin plastic rods 21 and the hole allows the polygonal frame 2 to be initially positioned in the hole.

[0031] refer to Figure 5 and Figure 6As shown, the positioning component includes a bottom inclined rod 3. One end of the bottom inclined rod 3 is fixed at the corner of the polygonal frame 2. The bottom inclined rod 3 and the thin plastic rod 21 are staggered on the polygonal frame 2. The other end of the bottom inclined rod 3 is inclined upward away from the axis. An upper inclined rod 31 is fixed at the upper end of the bottom inclined rod 3. The end of the upper inclined rod 31 away from the bottom inclined rod 3 is inclined upward closer to the axis of the sleeve 1. The length of the bottom inclined rod 3 is longer than the length of the upper inclined rod 31. At the same time, on the side away from the axis of the sleeve 1, there are two symmetrically fixed fitting inclined plates 33 at the connection position of the bottom inclined rod 3 and the upper inclined rod 31. One end of the two fitting inclined plates 33 is far away from each other. Several metal cones 35 are fixed between the two fitting inclined plates 33. At the same time, there are two inner folded strips 34 fixed between one end of the two fitting inclined plates 33 and the side walls of the bottom inclined rod 3 and the upper inclined rod 31. The inner folded strips 34 support the metal cones 35 and bend towards the side closer to the metal cones 35 when under pressure.

[0032] Among them, sleeve 1 and Figure 5 The structure consists of two components, with sleeve 1 divided into different states, primarily configured according to the shape of the hole. Figure 5 The structure is a complete component, a universal part. When using it, the user selects the appropriate shape and then... Figure 5 The structure and sleeve 1 are combined together.

[0033] The structure of the connection between sleeve 1 and the positioning element is as follows:

[0034] A T-shaped block 32 is fixed to the upper end of the upper inclined rod 31. Several T-shaped grooves 12 with the same shape as the T-shaped block 32 are arranged in a ring array on the lower side of the sleeve 1. One end of the T-shaped groove 12 passes through the outer wall of the sleeve 1 and extends out. The T-shaped block 32 is slidably inserted into the inside of the T-shaped groove 12. A retaining groove 13 is opened on the upper side of the inside of the T-shaped groove 12 away from the outer wall of the sleeve 1. The retaining groove 13 is located on the upper side of the T-shaped groove 12. An arc-shaped plastic sheet 321 is fixed on the upper side of the T-shaped block 32. The arc-shaped plastic sheet 321 is elastic, that is, it can deform after being compressed. It can return to its original shape when there is no pressure. An inner groove is provided between the T-shaped block 32 and the arc-shaped plastic sheet 321. The inner groove provides space for the arc-shaped plastic sheet 321 to deform under pressure. When the T-shaped block 32 is inserted into the T-shaped groove 12, the arc-shaped plastic sheet 321 is squeezed and collapses downward. When the arc-shaped plastic sheet 321 enters the slot 13, the arc-shaped plastic sheet 321 contacts the side wall of the slot 13. When the arc-shaped plastic sheet 321 contacts the slot 13, the T-shaped block 32 is fixed in the T-shaped groove 12. At this time, the connection between the sleeve 1 and the positioning component is completed.

[0035] An insertion hole is provided on the upper side of the sleeve 1 near the slot 13. When the positioning part and the sleeve 1 are separated, the worker uses a thin rod to insert into the hole. The thin rod presses the arc-shaped plastic piece 321 downward, so that the slot 13 and the arc-shaped plastic piece 321 are separated. At this time, the T-block 32 is released from the fixation between it and the T-slot 12, and the worker can take the T-block 32 out of the T-slot 12.

[0036] Bending grooves are provided on the side of the connection between the upper inclined rod 31 and the T-block 32 away from the axis of the sleeve 1, and on the side of the connection between the bottom inclined rod 3 and the upper inclined rod 31 close to the axis of the sleeve 1. The bending grooves are to facilitate the bending of the upper inclined rod 31 and the bottom inclined rod 3.

[0037] After the worker inserts the polygonal frame 2 into the hole, one end of the thin plastic rod 21 and the outer wall of the sleeve 1 are in contact with the side wall of the hole, while one side of the thick tube 11 is in contact with the wall. At this time, the worker pulls the pull ring 5, causing the pull rod 6 to pull the polygonal frame 2 through the plastic connecting rod 4, moving the polygonal frame 2 closer to the sleeve 1. During the movement of the polygonal frame 2, the polygonal frame 2 drives the bottom inclined rod 3 to move upward. Due to the guidance of the bending groove between the upper inclined rod 31, the bottom inclined rod 3, and the upper inclined rod 31 and the T-block 32, the upward-moving bottom inclined rod 3 pushes one end of the upper inclined rod 31 closer to the hole. As the wall moves, the inclined plate 33 comes into contact with the side wall of the hole as one end of the upper inclined rod 31 approaches the side wall of the hole. As the inclined plate 33 is continuously pushed by the upper inclined rod 31, the inner fold strip 34 begins to bend, and one end of the metal cone 35 pierces into the side wall of the hole to enhance the stability between the positioning component and the side wall of the hole. When the multi-frame 2 drives several bottom inclined rods 3 to be set in parallel, the multi-frame 2 is pushed and deformed by the bottom inclined rods 3. Through the deformation elastic force between the bottom inclined rods 3 and the multi-frame 2, the positions of the multi-frame 2 and the bottom inclined rods 3 are fixed. At this time, the positioning component is fixed in the position of the hole.

[0038] When workers are applying putty, the protective mesh 7 blocks the putty, while the thickness tube 11 serves as a thickness reference and a support for the application, ensuring that the putty layer reaches the predetermined thickness and is smooth.

[0039] It is important to emphasize that, except for the pull ring 5 which is made of metal, all other parts of the device in this solution are made of elastic plastic, which is elastic and can return to its original shape after deformation.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wall opening leaving device comprising a sleeve (1), characterized in that: The lower side of the sleeve (1) is provided with a multi-frame (2), and a number of positioning components are provided between the sleeve (1) and the multi-frame (2). A pull rod (6) is provided inside the multi-frame (2). One end of the pull rod (6) is connected to the multi-frame (2) by a number of plastic connecting rods (4). When the pull rod (6) is pulled, it causes the multi-frame (2) to move closer to the sleeve (1). During the movement, the multi-frame (2) causes the positioning components to deform and squeeze the side wall of the wall.

2. The wall opening leaving device according to claim 1, characterized in that: The multi-frame (2) is a polygonal structure, and a thin plastic rod (21) is provided between each pair of positioning components. The positioning component includes a bottom inclined rod (3). One end of the thin plastic rod (21) and the bottom inclined rod (3) is fixed at the corner of the multi-frame (2), and one end of the thin plastic rod (21) and the bottom inclined rod (3) are both inclined upwards away from the axis.

3. The wall opening leaving device according to claim 2, characterized in that: The upper end of the bottom inclined rod (3) is fixed with an upper inclined rod (31). The other end of the upper inclined rod (31) away from the bottom inclined rod (3) is inclined upward towards the axis of the sleeve (1), and the length of the bottom inclined rod (3) is longer than the length of the upper inclined rod (31).

4. The wall opening and hole-leaving device according to claim 3, characterized in that: The upper end of the upper inclined rod (31) is fixed with a T-shaped block (32). The lower side of the sleeve (1) is provided with a number of T-shaped grooves (12) with the same shape as the T-shaped block (32). One end of the T-shaped groove (12) passes through the outer wall of the sleeve (1) and extends out. The T-shaped block (32) is slidably inserted into the inside of the T-shaped groove (12).

5. The wall opening and hole-leaving device according to claim 4, characterized in that: The T-groove (12) has a slot (13) on the upper side away from the outer wall of the sleeve (1). An arc-shaped plastic sheet (321) is fixed on the upper side of the T-block (32), and an inner groove is provided between the T-block (32) and the arc-shaped plastic sheet (321). When the T-block (32) is inserted into the T-groove (12), the arc-shaped plastic sheet (321) is squeezed and collapses downward. When the arc-shaped plastic sheet (321) enters the slot (13), the arc-shaped plastic sheet (321) and the side wall of the slot (13) come into contact.

6. The wall opening and hole-leaving device according to claim 3, characterized in that: The bottom inclined rod (3) and the upper inclined rod (31) are connected at a position away from the axis of the sleeve (1) and are symmetrically fixed with fitting inclined plates (33). One end of the two fitting inclined plates (33) is far away from each other, and several metal cones (35) are fixed between the two fitting inclined plates (33).

7. The wall opening and hole-leaving device according to claim 4, characterized in that: The upper inclined rod (31) and the T-block (32) are connected on the side away from the axis of the sleeve (1), and the bottom inclined rod (3) and the upper inclined rod (31) are connected on the side close to the axis of the sleeve (1). Bending grooves are provided on both sides.

8. The wall opening and hole-leaving device according to claim 2, characterized in that: A thick tube (11) is fixed on the upper side of the sleeve (1) near the outer side. A protective mesh (7) is snapped into the inside of the thick tube (11). After the multi-frame (2) is inserted into the hole, one end of the thin plastic rod (21) and the outer wall of the sleeve (1) are in contact with the side wall of the hole, and one side of the thick tube (11) is in contact with the wall surface.

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