Drawing type wall anchor

Abstract

The drawing type wall anchor comprises a clamping plate, a drawing strip and a clamping ring, the clamping plate comprises a main plate and two side plates protruding out of the edges of the two sides of the main plate, and a screw hole and a through long-strip hole are formed in the main plate; the drawing strip comprises a rack and a driving strip connected to the rack, the rack is pivotally connected to the clamping plate, first insections are arranged on the surface of the rack, the position of the long-strip hole enables the rack to penetrate through the long-strip hole when the clamping plate rotates, and the driving strip is arranged at one end of the rack and is made of a flexible material; the clamping ring is used for being clamped in a gypsum board hole and provided with a first hole allowing the rack to pass through and a second hole allowing the bolt to pass through, the second hole is coaxial with the screw hole when the main board is perpendicular to the rack, and second insections matched with the first insections are arranged on the inner wall of the first hole. According to the anchoring assembly, the whole face of the clamping plate can be supported on the gypsum board through the positions of the driving strips and the long-strip-shaped holes, the contact area is increased, the stability is improved, and the clamping plate is prevented from falling into the gypsum board.

Description

Technical Field

[0001] The invention belongs to the technical field of hardware devices, and in particular relates to a pull-out wall anchor. Background Art

[0002] Gypsum board is a material made of building gypsum as the main raw material. It is a building material with light weight, high strength, thin thickness, easy processing, good sound insulation, heat insulation and fire resistance. It is one of the new lightweight panels that are currently being developed. Gypsum board has been widely used in various buildings such as residential, office buildings, shops, hotels and industrial plants, such as interior partitions, wall covering panels (instead of wall plastering), ceilings, sound-absorbing panels, ground base panels and various decorative panels. However, due to the material itself, the strength of gypsum board itself is not high and bolts cannot be fixed well. Therefore, gypsum board usually uses anchoring components to make fixed positions. The anchoring components are mainly composed of cardboard, pull-out strips and clamps. In the common anchoring components, the cardboard is supported on the gypsum board by the side panels on both sides. However, due to the soft texture of gypsum board, long-term linear contact may cause the cardboard to sink into the gypsum board, thereby damaging the gypsum board or even causing the cardboard to be pulled out.

[0003] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0004] The object of the present invention is to provide a pull-out wall anchor for solving the stability problem after being fixed to a gypsum board.

[0005] In order to achieve the above-mentioned purpose, a specific embodiment of the present invention provides a pull-out wall anchor, including a clamping plate, a pull-out strip and a clamping ring, the clamping plate including a main board and two side boards protruding from the edges of both sides of the main board, the main board is provided with a screw hole and a through long strip hole; the pull-out strip includes a rack and a driving strip connected to the rack, the rack is pivotally connected to the clamping plate, a first tooth pattern is provided on its surface, the position of the long strip hole enables the rack to pass through the long strip hole when the clamping plate rotates, the driving strip is provided at one end of the rack and is made of a flexible material; the clamping ring is used to clamp in a hole in a gypsum board, the clamping ring is provided with a first hole for the rack to pass through, and a second hole for the bolt to pass through, the second hole is coaxial with the screw hole when the main board is perpendicular to the rack, and a second tooth pattern matching the first tooth pattern is provided on the inner wall of the first hole.

[0006] In one or more embodiments of the present invention, the pull-out bar further comprises a connecting bar connecting the rack and the driving bar, wherein the connecting bar is located between the side plates and is perpendicular to the rack, and abuts against the main board when the rack is perpendicular to the main board.

[0007] In one or more embodiments of the present invention, mounting holes are respectively provided on the two side panels, and pivots that can be embedded in the mounting holes are protruded from the rack and the connecting bar.

[0008] In one or more embodiments of the present invention, the rack includes a tooth segment provided with a first tooth pattern, and a limit segment connected to the tooth segment, wherein a pivot protrudes from one end of the limit segment, and the other end of the limit segment extends in a direction away from the tooth segment and abuts against the main board when the rack rotates to be parallel to the main board.

[0009] In one or more embodiments of the present invention, the limiting section includes a first section connected to the tooth pattern section and having a width the same as that of the tooth pattern section, and a second section connected to the first section and having a width smaller than that of the first section. The difference in width between the first section and the second section is the same as the thickness of the main board. When the rack is rotated to be parallel to the main board, only the second section abuts against the main board.

[0010] In one or more embodiments of the present invention, the first tooth patterns are provided on both sides of the tooth pattern segment, and the second tooth patterns are provided on two side walls of the first hole.

[0011] In one or more embodiments of the present invention, the rack further includes an insertion section connected to the other end of the tooth pattern section, the surface of the insertion section has no tooth patterns, and the length of the insertion section is greater than the length of the first hole.

[0012] In one or more embodiments of the present invention, a convex strip is protruded from the main board, which extends along the length direction of the main board and is close to the long strip hole.

[0013] In one or more embodiments of the present invention, the first tooth pattern includes a plurality of teeth, each of the teeth includes a vertical surface perpendicular to the rack surface, and an inclined surface connecting the vertical surface and the rack surface, and the vertical surface faces the driving bar.

[0014] In one or more embodiments of the present invention, a window communicating with the first hole and a breaking block extending to the window and capable of being broken outward are provided on the side wall of the clamping ring, and the second tooth pattern protrudes from the breaking block.

[0015] Compared with the prior art, the pull-out wall anchor of the present invention has a driving strip located between the main board and the side board. After being pushed into the hole of the gypsum board, the driving strip pushes the clamping plate to rotate. After the rotation, the main board faces one side of the gypsum board, and the side plate faces away from the gypsum board. Therefore, after pulling the pull-out strip, the main board is directly attached to the gypsum board, and the two are in surface contact with each other, and the contact area is large. After long-term use, the clamping plate will not sink into the gypsum board, thereby ensuring the consistency of the gypsum board and high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of a pull-out wall anchor according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of a case where the drawer bar is rotated to be parallel to the main board in one embodiment of the present invention;

[0019] Figure 3 A schematic diagram of a pull-out wall anchor from another angle in one embodiment of the present invention;

[0020] Figure 4 A schematic diagram of a clamping plate in one embodiment of the present invention;

[0021] Figure 5 A schematic diagram of a pull-out strip in one embodiment of the present invention;

[0022] Figure 6 A top view of a pull-out strip in one embodiment of the present invention;

[0023] Figure 7 A schematic diagram of a snap ring in one embodiment of the present invention;

[0024] Figure 8 A front view of a snap ring in one embodiment of the present invention;

[0025] Fig. 9 Schematic diagram of a rack and a rack in a retaining ring in one embodiment of the present invention.

[0026] Description of main reference numerals:

[0027] 100-pull-out wall anchor, 10-clamping plate, 11-main board, 111-screw hole, 12-side plate, 121-mounting hole, 13-long hole, 20-pull-out strip, 21-rack, 211-toothed section, 212-limiting section, 2121-first section, 2122-second section, 213-insertion section, 22-driving strip, 23-connecting strip, 24-pivot, 30-clamping ring, 31-first hole, 32-second hole, 33-window, 34-block, 41-vertical surface, 42-inclined surface. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments 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 creative work should fall within the scope of protection of the present invention.

[0029] like Figure 1-8 As shown, a pull-out wall anchor 100 in one embodiment of the present invention comprises a clamping plate 10, a pull-out strip 20 and a clamping ring 30. The clamping plate 10 comprises a main plate 11 and two side plates 12, and the main plate 11 is provided with screw holes 111. The two side plates 12 are fixed to the two side edges of the main plate 11 along the length direction of the main plate 11, so that the cross section of the clamping plate 10 is in a U shape as a whole. A long strip hole 13 is formed on the main plate 11 and passes through the bottom thereof.

[0030] The pull-out bar 20 includes a rack 21 and a driving bar 22 connected to the rack 21. One end of the rack 21 is configured to be pivotally connected to the clamping plate 10, and when the clamping plate 10 rotates to a certain position relative to the pull-out bar 20, the rack 21 can pass through the long strip hole 13. The surface of the rack 21 is provided with a first tooth pattern. The driving bar 22 is connected to one end of the rack 21. The driving bar 22 can be arc-shaped and made of a flexible material so that it has a certain elasticity under pressure.

[0031] The clamping ring 30 is used to clamp in the hole of the gypsum board, and includes a first hole 31 for the rack 21 to pass through, and a second hole 32 for the bolt to pass through. A second tooth pattern matching the first tooth pattern is provided on the inner wall of the first hole 31. When the rack 21 is perpendicular to the main board 11, the second hole 32 and the screw hole 111 are coaxial.

[0032] In actual use, a hole is punched in the gypsum board in advance, and the clamping plate 10, the pull-out strip 20 and the clamping ring 30 are assembled as shown in the figure. Figure 1 Then, the clamping plate 10 is rotated clockwise until it is roughly parallel to the rack 21. During the rotation, the bottom plate 10 contacts and pushes the driving bar 22, causing it to be compressed and elastically deformed and store energy (such as Figure 2 As shown). Then, the clamping plate 10 is inserted into the hole pre-punched in the gypsum board. When the clamping plate 10 moves to the other end of the gypsum board, the force of the manpower and the gypsum board is lost, and the driving bar 22 recovers its deformation and pushes the clamping plate 10 to rotate counterclockwise. Under its pushing action, the rack 21 passes through the long hole 13, and the clamping plate 10 rotates until the back of the main plate 11 faces the gypsum board, while the side plate 12 faces away from the gypsum board (i.e. Figure 3Then pull the pull bar 20 to move the main board 11 toward the gypsum board, and the entire bottom surface abuts against the gypsum board. The entire surface contact makes the contact area larger and the stability higher. Figure 1 As shown, after the rack 21 is inserted into the first hole 31 and the clamping ring 30 is moved and pushed into the hole of the gypsum board, the pull-out strip 20 is broken, and the clamping plate 10 and the clamping ring 30 are fixed to the gypsum board under the connection of the rack 21, and the screw hole 111 and the second hole 32 are coaxial. When fixing other objects, the bolt is inserted into the screw hole 111 through the second hole 32 and tightened, so that the object to be fixed can be fixed to the gypsum board.

[0033] In the existing pull-out wall anchors, the front side of the main board 11 (i.e., the side where the side board 12 protrudes) is in contact with the gypsum board, resulting in a small contact area, with only the edge of the side board in contact with the gypsum board. When the fastening force is large, the edge of the side board is easily stuck in the gypsum board, causing the gypsum board to break. In this embodiment, the long hole 13 and the drive bar 22 define the rotation direction of the clamping plate 10, as well as the final contact surface between the clamping plate 10 and the gypsum board (the entire back side of the main board 11), thereby increasing the contact area between the clamping plate 10 and the gypsum board, preventing the clamping plate 10 from being embedded in the gypsum board, and providing higher stability.

[0034] Of course, the rack 21 can also be inserted into the first hole 31 first, and the clamping ring 30 can be moved to an appropriate position (without affecting the rotation of the clamping plate 10). Under the action of the first tooth pattern and the second tooth pattern, the clamping ring 30 can be maintained at this position without moving, and then the clamping plate 10 can be rotated, inserted into the hole of the gypsum board, pulled, and the pull-out strip 20 can be broken.

[0035] The pull-out bar 20 further includes a connecting bar 23 to which the rack 21 and the drive bar 22 are fixed. Figure 5 As shown, the connecting strip 23 is arc-shaped, one end of which is fixed to the rack 21, and the driving strip 22 is fixed to the other end. The connecting strip 23 is also located between the main board 11 and the side board 12, and its protruding direction is opposite to the bending direction of the driving strip 22. At the same time, the connecting strip 23 is perpendicular to the rack 21. Therefore, when the rack 21 is perpendicular to the main board 11, the connecting strip 23 abuts against the main board 11, which can prompt the operator to rotate in the correct direction when rotating the clamping plate 10, and rotate in the direction of squeezing the driving strip 22, while it will form a blockage when rotating to the other side. Figure 1 As shown, when the rack 21 is perpendicular to the main board 11 , the connecting strip 23 surrounds the periphery of the screw hole 111 , so that it will not interfere with the insertion of the bolt.

[0036] like Figure 4As shown, mounting holes 121 are respectively provided on the two side panels 12, and pivots 24 that can be embedded in the mounting holes 121 protrude from the rack 21 and the connecting strip 23. Therefore, the clamping plate 10 and the drawer strip 20 are designed to be detachable, and the connection and rotation between the clamping plate 10 and the drawer strip 20 are achieved through the cooperation of the pivot 24 and the mounting hole 121.

[0037] In one embodiment, the rack 21 is a multi-section design, specifically including a toothed section 211 with a first tooth pattern located in the middle position, and a limiting section 212 connected to one end of the toothed section 211. The limiting section 212 has no toothed structure, and the pivot 24 protrudes from one end of the limiting section 212, while the other end of the limiting section 212 extends to the top of the main board 11, and is used to abut against the main board 11 when the rack 21 rotates to be roughly parallel to the main board 11, so as to prevent excessive rotation and avoid the drive bar 22 being excessively compressed and broken.

[0038] Preferably, the limiting section 212 is also designed in two sections, including a first section 2121 connected to the toothed section 211, and a second section 2122 away from the toothed section 211. The first section 2121 has the same width as the toothed section 211, while the second section 2122 has a width smaller than the first section 2121, and the difference between the widths is the same as the thickness of the main board 11. Therefore, the rack 21 can be rotated to be completely parallel to the main board 11. At this time, part of the first section 2121 is located in the long hole 13, and the second section 2122 abuts against the main board 11.

[0039] In other embodiments, the limiting section 212 may also be of a single-section design, that is, the overall width is smaller than the width of the toothed section 211 , and it is sufficient that the limiting section 212 abuts against the main board 11 when the rack 21 rotates to be parallel to the main board 11 .

[0040] like Fig. 9 As shown, the tooth pattern structure in the rack 21 and the first hole 31 is the same as the tie bar, so that the clamping ring 30 can only move in one direction on the rack 21. Specifically, each tooth on the first tooth pattern includes a vertical surface 41 perpendicular to the surface of the rack 21, and an inclined surface 42 extending from the end of the vertical surface 41 toward the surface of the rack 21, wherein the vertical surface 41 faces the drive bar 22. The second tooth pattern in the first hole 31 has the same structure as the first tooth pattern, but in the opposite direction. Therefore, when the clamping ring 30 can move toward the drive bar 22 under the action of the two inclined surfaces, the clamping ring 30 cannot move away from the drive bar 22 under the obstruction of the two vertical surfaces. In actual use, the clamping ring 30 can only move toward the gypsum board, and cannot be detached after being inserted into the hole of the gypsum board, and has good stability.

[0041] Further, such as Figure 7 and 8As shown, a window 33 connected to the first hole 31 and a breaking block 34 extending from the window 33 and movable outward are provided on the side wall of the snap ring 30, and the second tooth pattern is provided on the breaking block 34. Therefore, when the snap ring 30 is moved, if the position is not ideal, the breaking block 34 can be moved outward to make the first tooth pattern and the second tooth pattern disengage from contact, and the snap ring 30 can be freely moved at this time, which is more flexible.

[0042] Of course, both surfaces of each tooth on the first and second tooth patterns are inclined surfaces, and there is no vertical surface to block when moving in different directions, so it supports bidirectional movement, so that the position of the clamping ring 30 can be flexibly adjusted. In addition, the two sets of tooth patterns themselves support bidirectional movement, so there is no need to set the window 33 and the block 34 on the clamping ring 30, and the overall strength is higher.

[0043] In other embodiments, first teeth are provided on both sides of the tooth segment 212, and correspondingly, second teeth are provided on both inner walls of the first hole 31. Providing teeth on both sides can make the rack 21 easier to break without repeated breaking, or even unable to break, thereby reducing operation time and improving work efficiency and ease of use.

[0044] Preferably, the rack 21 also includes an insertion section 213 located at the other end of the tooth pattern section 211, the insertion section 213 also has no tooth pattern, and its length is greater than the length of the first hole 31. Therefore, when the rack 21 is just inserted into the first hole 31, since the surface has no tooth pattern, the insertion section 213 can pass through the first hole 31 without obstacles until the first tooth pattern contacts the second tooth pattern. At this time, the end of the insertion section 213 has been exposed at the other end of the first hole 31, so that the operator can pull the rack 21 from the other end to prevent the rack 21 from bending due to improper pushing from the other end. At the same time, the width of the insertion section 213 at the end away from the tooth pattern section 211 gradually decreases in the direction away from the tooth pattern section 211, which makes it easier to insert the rack 21 into the first hole 31.

[0045] Since the rack 21 needs to pass through the long hole 13 and the first hole 31 at the same time, and the bolt needs to pass through the second hole 32 and then be inserted into the screw hole 111, when the rack 21 is perpendicular to the main board 11, the first hole 31 is coaxial with the long hole 13, and the second hole 32 is coaxial with the screw hole 111. The screw hole 111 is arranged on one side of the long hole 13, so it adopts an eccentric design, and the second hole 32 also adopts an eccentric design.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A pull-out wall anchor, characterized in that: include: A clamping plate, the clamping plate comprising a main plate and two side plates protruding from the edges of both sides of the main plate, the main plate being provided with screw holes and through-going long holes; A pull-out bar, comprising a rack and a driving bar connected to the rack, the rack being pivotally connected to the clamping plate, a first tooth pattern being arranged on a surface thereof, the position of the elongated hole enabling the rack to pass through the elongated hole when the clamping plate rotates, the driving bar being arranged at one end of the rack and being made of a flexible material; and A clamping ring is used to clamp in the hole of the gypsum board. The clamping ring is provided with a first hole for the rack to pass through, and a second hole for the bolt to pass through. The second hole is coaxial with the screw hole when the main board is perpendicular to the rack. The inner wall of the first hole is provided with a second tooth pattern that matches the first tooth pattern.

2. The pull-out wall anchor according to claim 1, characterized in that: The pull-out bar also includes a connecting bar connecting the rack and the driving bar. The connecting bar is located between the side plates and is perpendicular to the rack, and abuts against the main board when the rack is perpendicular to the main board.

3. The pull-out wall anchor according to claim 2, characterized in that: The two side plates are respectively provided with mounting holes, and the racks and the connecting bars are provided with pivots which can be embedded in the mounting holes.

4. The pull-out wall anchor according to claim 3, characterized in that: The rack includes a toothed section provided with a first tooth pattern, and a limiting section connected to the toothed section, wherein a pivot protrudes from one end of the limiting section, and the other end of the limiting section extends in a direction away from the toothed section and abuts against the main board when the rack rotates to be parallel to the main board.

5. The pull-out wall anchor according to claim 4, characterized in that: The limiting section includes a first section connected to the toothed section and having a width the same as that of the toothed section, and a second section connected to the first section and having a width less than that of the first section. The difference in width between the first section and the second section is the same as the thickness of the main board. When the rack is rotated to be parallel to the main board, only the second section abuts against the main board.

6. The pull-out wall anchor according to claim 4, characterized in that: The first tooth patterns are arranged on both sides of the tooth pattern section, and the second tooth patterns are arranged on two side walls of the first hole.

7. The pull-out wall anchor according to claim 4, characterized in that: The rack also includes an insertion section connected to the other end of the tooth pattern section. The surface of the insertion section has no tooth patterns, and the length of the insertion section is greater than the length of the first hole.

8. The pull-out wall anchor according to claim 1, characterized in that: A convex strip is protruded from the main board, extending along the length direction of the main board and close to the long strip hole.

9. The pull-out wall anchor according to claim 1, characterized in that: The first tooth pattern includes a plurality of teeth, each of the teeth includes a vertical surface perpendicular to the rack surface and an inclined surface connecting the vertical surface and the rack surface, and the vertical surface faces the driving bar.

10. The pull-out wall anchor according to claim 9, characterized in that: A window communicating with the first hole and a breaking block extending to the window and capable of being broken outward are arranged on the side wall of the clamping ring, and the second tooth pattern protrudes from the breaking block.

Images