Suspended ceiling connection expansion screw

Abstract

The utility model discloses a suspended ceiling connection expansion screw, and relates to the field of expansion screws. The expansion screw comprises a screw unit, a fixing unit is arranged on the screw unit, the screw unit comprises an expansion pipe, a lead screw and a conical block, one end of the lead screw is inserted into the expansion pipe, the conical block is fixedly connected to the top end of the lead screw, and the fixing unit comprises a fixing disc, an annular block and a rubber ring. The annular block is fixedly connected to the fixing disc, and the annular block is fixedly sleeved with the rubber ring. According to the expansion screw, the annular block is inserted into the inserting groove in the bottom end of the expansion pipe, the rubber ring on the annular block abuts against the side wall of the inserting groove, then the fixing disc is installed at the bottom end of the expansion pipe, the expansion pipe enters a hole by hammering the fixing disc, and the problem that a lead screw deforms due to hammering of the lead screw is avoided; it is guaranteed that the expansion screw cannot damage the lead screw in the installation process, and then follow-up installation of the ceiling joist is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of expansion screws, in particular to a ceiling connection expansion screw. Background Art

[0002] Expansion screws generally refer to metal expansion screws, and are a type of screw with strong static fixing force. In life, they are often used in various decoration occasions, such as the installation of air conditioners, chandeliers, water heaters, suspended ceilings, etc. These objects do not generate vibrations. The fixation of expansion screws uses the wedge-shaped slope to promote expansion and generate friction gripping force to achieve the fixing effect.

[0003] During the construction of suspended ceilings, expansion screws are indispensable. Expansion screws are needed to connect the suspended ceiling keel to the wall. Generally, a hole is punched in the top plate first, and then the expansion tube is inserted into the hole, and then the nut is tightened to fix the expansion screw to the top plate.

[0004] However, when the expansion tube is inserted into the hole, it is difficult to insert the expansion tube into the hole due to the presence of debris in the hole. Existing personnel generally drive the expansion tube into the hole by hammering the screw rod. During the hammering process, the screw rod is easily deformed, causing the screw rod length to change, thereby affecting the subsequent installation of the ceiling keel. Utility Model Content

[0005] In response to the deficiencies in the prior art, the utility model provides an expansion screw for connecting a suspended ceiling, which solves the problem that, during the process of inserting the expansion tube into the hole, the expansion tube is difficult to be inserted into the hole due to the presence of debris in the hole. Existing personnel generally drive the expansion tube into the hole by hammering the screw rod. During the process of hammering the screw rod, the screw rod is easily deformed, causing the screw rod length to change, thereby affecting the subsequent installation of the suspended ceiling keel.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A ceiling connection expansion screw includes a screw unit, and a fixing unit is provided on the screw unit;

[0007] The screw unit includes an expansion tube, a screw rod and a tapered block, one end of the screw rod is inserted into the expansion tube, and the tapered block is fixedly connected to the top end of the screw rod;

[0008] The fixing unit comprises a fixing disk, an annular block and a rubber ring. The annular block is fixedly connected to the fixing disk, and the rubber ring is fixedly sleeved on the annular block.

[0009] Preferably, an expansion block is provided on the top of the expansion tube, and the expansion block abuts against the conical block.

[0010] Preferably, a slot is provided at the bottom of the expansion tube, and an annular block is inserted into the slot.

[0011] Preferably, the rubber ring abuts against the side wall of the slot.

[0012] Preferably, the fixed plate is movably connected to the bottom end of the expansion tube.

[0013] Preferably, the screw unit further includes a nut and a connecting assembly, the nut abuts against the bottom end of the expansion tube, and the connecting assembly is arranged at the bottom of the screw rod.

[0014] Preferably, the nut is threadedly connected to the screw.

[0015] Preferably, the fixing disk is sleeved on the outside of the screw rod and the nut.

[0016] The utility model discloses a ceiling connection expansion screw, which has the following beneficial effects:

[0017] 1. The ceiling connection expansion screw is installed by inserting the annular block into the slot at the bottom end of the expansion tube. The rubber ring on the annular block abuts against the side wall of the slot, so that the fixing plate is installed at the bottom end of the expansion tube. The expansion tube is entered into the hole by hammering the fixing plate, avoiding the problem of deformation of the screw rod caused by hammering, ensuring that the expansion screw will not damage the screw rod during installation, thereby ensuring the installation of subsequent ceiling keels.

[0018] 2. The ceiling connection expansion screws are connected by a rubber ring on the annular block to the side wall of the slot, so that the fixing plate can be disassembled and reused, saving the production cost of the expansion screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the screw unit structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the expansion tube structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the fixed unit structure of the utility model.

[0024] In the figure: 1. Screw unit; 11. Expansion tube; 111. Expansion block; 112. Slot; 12. Screw rod; 13. Conical block; 14. Nut; 15. Connecting assembly; 2. Fixing unit; 21. Fixing plate; 22. Ring block; 23. Rubber ring. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. 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 making any creative efforts are within the scope of protection of the present invention.

[0026] The embodiment of the present application provides a ceiling connection expansion screw, which solves the problem that the expansion tube 11 is difficult to be inserted into the hole due to the presence of debris in the hole during the process of inserting the expansion tube 11 into the hole. Existing personnel generally drive the expansion tube 11 into the hole by hammering the screw rod 12. During the hammering process, the screw rod 12 is easily deformed, causing the length of the screw rod 12 to change, thereby affecting the subsequent installation of the ceiling keel. The embodiment of the present application provides a ceiling connection expansion screw, which solves the problem that the expansion tube 11 is difficult to be inserted into the hole due to the presence of debris in the hole. The existing personnel generally drive the expansion tube 11 into the hole by hammering the screw rod 12. During the hammering process, the screw rod 12 is easily deformed, causing the length of the screw rod 12 to change, thereby affecting the subsequent installation of the ceiling keel. The embodiment of the present application provides a ceiling connection expansion screw, which solves the problem that the expansion tube 11 is difficult to be inserted into the hole due to the presence of debris in the hole.

[0027] The embodiment of the utility model discloses an expansion screw for connecting a suspended ceiling.

[0028] According to the attached Figure 1-4 As shown, it includes a screw unit 1, on which a fixing unit 2 is provided. The screw unit 1 includes an expansion tube 11, a screw rod 12 and a tapered block 13. One end of the screw rod 12 is inserted into the expansion tube 11, and the tapered block 13 is fixedly connected to the top of the screw rod 12.

[0029] Specifically disclosed, the fixing unit 2 includes a fixing plate 21, an annular block 22 and a rubber ring 23. The annular block 22 is fixedly connected to the fixing plate 21, and the rubber ring 23 is fixedly sleeved on the annular block 22. By inserting the annular block 22 into the slot 112 at the bottom end of the expansion tube 11, the rubber ring 23 on the annular block 22 abuts against the side wall of the slot 112, so that the fixing plate 21 is installed at the bottom end of the expansion tube 11. By hammering the fixing plate 21, the expansion tube 11 is allowed to enter the hole, thereby avoiding the problem of deformation of the screw rod 12 caused by hammering, ensuring that the expansion screw will not damage the screw rod 12 during the installation process, thereby ensuring the subsequent installation of the ceiling keel.

[0030] Furthermore, an expansion block 111 is provided on the top of the expansion tube 11, and the expansion block 111 abuts against the conical block 13. The abutment between the expansion block 111 and the conical block 13 enables the expansion block 111 to expand outward, thereby fixing the expansion tube 11 in the top plate.

[0031] Furthermore, a slot 112 is provided at the bottom of the expansion tube 11 , and the annular block 22 is inserted into the slot 112 .

[0032] It is particularly disclosed that the rubber ring 23 abuts against the side wall of the slot 112. By abutting the rubber ring 23 on the annular block 22 against the side wall of the slot 112, the fixing plate 21 can be disassembled and reused, saving the production cost of the expansion screw.

[0033] It should be particularly emphasized that the fixing plate 21 is movably connected to the bottom end of the expansion tube 11 .

[0034] Furthermore, the screw unit 1 also includes a nut 14 and a connecting assembly 15. The nut 14 abuts against the bottom end of the expansion tube 11, and the nut 14 is threadedly connected to the screw rod 12. The connecting assembly 15 is arranged at the bottom of the screw rod 12, and the connecting assembly 15 is used to install the ceiling keel support frame on the screw rod 12.

[0035] It should be particularly emphasized that the fixing plate 21 is sleeved on the outside of the screw rod 12 and the nut 14 .

[0036] Working principle: first, drill a hole on the top plate, then insert the annular block 22 on the fixed plate 21 into the slot 112 at the bottom end of the expansion tube 11, and the rubber ring 23 on the annular block 22 is against the side wall of the slot 112, so that the fixed plate 21 is installed at the bottom end of the expansion tube 11, and then the expansion tube 11 is inserted into the hole, and the fixed plate 21 is hammered to make the expansion tube 11 enter the hole, and then the fixed plate 21 is removed from the bottom end of the expansion tube 11, and the nut 14 at the bottom end of the expansion tube 11 is screwed to make the nut 14 move upward, thereby driving the expansion tube 11 to be against the conical block 13, so that the expanding block 111 is expanded outward, and then the top end of the expansion screw is fixed to the top plate, and finally the ceiling keel support frame is installed at the bottom of the screw rod 12 through the connecting assembly 15.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A ceiling connection expansion screw, comprising a screw unit (1), characterized in that: The screw unit (1) is provided with a fixing unit (2); The screw unit (1) comprises an expansion tube (11), a screw rod (12) and a tapered block (13); one end of the screw rod (12) is inserted into the expansion tube (11), and the tapered block (13) is fixedly connected to the top end of the screw rod (12); The fixing unit (2) comprises a fixing disk (21), an annular block (22) and a rubber ring (23); the annular block (22) is fixedly connected to the fixing disk (21); and the rubber ring (23) is fixedly sleeved on the annular block (22).

2. The ceiling connection expansion screw according to claim 1, characterized in that: An expansion block (111) is provided at the top of the expansion tube (11), and the expansion block (111) abuts against the conical block (13).

3. The ceiling connection expansion screw according to claim 1, characterized in that: A slot (112) is provided at the bottom of the expansion tube (11), and a ring block (22) is inserted into the slot (112).

4. The ceiling connection expansion screw according to claim 1, characterized in that: The rubber ring (23) abuts against the side wall of the slot (112).

5. The ceiling connection expansion screw according to claim 1, characterized in that: The fixed plate (21) is movably connected to the bottom end of the expansion tube (11).

6. The ceiling connection expansion screw according to claim 1, characterized in that: The screw unit (1) further comprises a nut (14) and a connecting assembly (15), wherein the nut (14) abuts against the bottom end of the expansion tube (11), and the connecting assembly (15) is arranged at the bottom of the screw rod (12).

7. The ceiling connection expansion screw according to claim 6, characterized in that: The nut (14) is threadedly connected to the screw rod (12).

8. The ceiling connection expansion screw according to claim 1, characterized in that: The fixing plate (21) is sleeved on the outer sides of the screw rod (12) and the nut (14).

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