Screw for fastening air conditioner indoor unit

Abstract

The utility model relates to the technical field of screws for air conditioner indoor unit installation, in particular to a screw for fastening an air conditioner indoor unit, which comprises a screw rod, a nut is in threaded connection with the upper portion of the outer wall of the screw rod, an expansion sleeve is fixedly connected with the lower portion of the outer wall of the screw rod, and an expansion groove is machined in the inner wall of the lower portion of one side of the expansion sleeve. An adjusting structure is arranged on one side of the screw rod and comprises a threaded rod, the lower portion of the outer wall of the threaded rod is in threaded connection with the inner wall of the bottom of the screw rod, an inclined block is fixedly connected to the bottom of the threaded rod, and an oil injection channel is machined in the upper portion of the inner wall of the screw rod. Through cooperation of a screw rod, an expansion sleeve and an adjusting structure, when the device is used, an inclined block can be rotated, the inclined block drives a threaded rod to rotate, the threaded rod moves downwards on the inner wall of the bottom of the screw rod, then the inclined block gradually moves downwards, the length of a screw can be conveniently adjusted when a hole is deep, and a worker can conveniently use the device.

Description

Technical Field

[0001] This utility model relates to the technical field of screws for installing indoor air conditioning units, specifically a screw used to fasten indoor air conditioning units. Background Technology

[0002] The indoor unit of an air conditioner is an important component of an air conditioning system. It is mainly responsible for processing indoor air and providing cooling or heating functions. When installing the indoor unit, it is often necessary to connect the indoor unit to the bracket, which is usually fixed to the wall with screws.

[0003] An expansion bolt for an air conditioner mounting bracket (application number: 202122937812.7) allows the clamping rod to disengage from the embedded nut, and the expansion block to return to its original shape, enabling the embedded nut to be removed. This method is simple and convenient without damaging the wall. However, the above-mentioned problem still exists. When installing the indoor unit of an air conditioner, the mounting bracket needs to be connected to the wall, which requires the use of screws. Fixing holes are drilled in the wall, and the impact screws are inserted into the holes for fixation. However, if the drilling depth is too deep, it can easily affect the fixing stability of the expansion screws. It is also inconvenient to adjust the length of the screws when the holes are deep, making it inconvenient for workers to use. Furthermore, when using the expansion screws, workers need to tighten the nuts. If the screws are left outside for a long time, it can easily cause sticking between the nut and the screw rod, making it difficult to apply lubricating oil directly between the nut and the screw rod, further complicating the use by workers. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the inconvenience of adjusting the screw length when the hole is deep, the inconvenience of use by operators, the inconvenience of applying lubricating oil directly between the nut and the screw, and the further inconvenience of use by operators. Therefore, this invention proposes a screw for fastening indoor air conditioning units.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a screw for fastening an indoor unit of an air conditioner, including a screw rod, a nut threadedly connected to the upper part of the outer wall of the screw rod, an expansion sleeve fixedly connected to the lower part of the outer wall of the screw rod, an expansion groove machined on the lower inner wall of one side of the expansion sleeve, and an adjustment structure provided on one side of the screw rod.

[0007] Preferably, the adjusting structure includes a threaded rod, the lower part of the outer wall of the threaded rod is threadedly connected to the inner wall of the bottom of the screw, and a wedge block is fixedly connected to the bottom of the threaded rod.

[0008] Preferably, an oil injection channel is machined on the upper part of the inner wall of the screw.

[0009] Preferably, the inner wall above one side of the screw rod is processed with a through hole.

[0010] Preferably, a gasket is matched with the gap above the outer wall of the screw rod.

[0011] Preferably, the bottom of the gasket is matched with the top of the expansion sleeve.

[0012] The utility model provides a screw for fastening air conditioner indoor unit has the beneficial effect that through the cooperation of screw rod, expansion sleeve and adjusting structure, when the device is used, the length of the screw can be adjusted when the hole is deep by rotating the inclined block, the inclined block drives the threaded rod to rotate, the threaded rod moves downward in the bottom inner wall of the screw rod, and then the inclined block gradually moves downward, which is convenient for the staff to use.

[0013] Through the cooperation of screw rod, nut, oil injection channel and through hole, when the device is used, the lubricating oil can be injected through the oil injection channel, the lubricating oil flows along the oil injection channel, and when passing through the through hole, the lubricating oil flows out from the through hole, at this time, the lubricating oil can directly act on the connecting position of the nut and the screw rod, which is convenient for the staff to use. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a structural schematic view of the utility model;

[0015] Fig. 2 It is a structural schematic view of the screw rod, nut and gasket of the utility model;

[0016] Fig. 3 It is a structural schematic view of the screw rod, through hole and threaded rod of the utility model;

[0017] Fig. 4 It is a structural schematic view of the screw rod, threaded rod and inclined block of the utility model;

[0018] Fig. 5 It is a structural schematic view of the screw rod, threaded rod and stop block of the utility model;

[0019] Fig. 6 It is a structural schematic view of the screw rod, oil injection channel and through hole of the utility model.

[0020] In the drawing: 1, screw rod, 2, adjusting structure, 2a1, threaded rod, 2a2, inclined block, 2b1, stop block, 3, nut, 4, gasket, 5, expansion sleeve, 6, expansion groove, 7, oil injection channel, 8, through hole. DETAILED DESCRIPTION

[0021] The utility model will be further described below in combination with the drawings:

[0022] Example 1: refer to the attachedFigs. 1-6 : The screw for fastening the indoor unit of the air conditioner in the embodiment comprises a screw rod 1, a nut 3 threadedly connected to the upper outer wall of the screw rod 1, and an expansion sleeve 5 fixedly connected to the lower outer wall of the screw rod 1. An inclined groove is formed in the lower inner wall of one side of the expansion sleeve 5, which can ensure that the expansion sleeve 5 bends outward when it is stressed. An expansion groove 6 is formed in the lower inner wall of one side of the expansion sleeve 5.

[0023] An oil injection channel 7 is formed in the upper inner wall of the screw rod 1, which is used for injecting lubricating oil. A through hole 8 is formed in the upper inner wall of one side of the screw rod 1. A gasket 4 is clearance-fitted to the upper outer wall of the screw rod 1, and the bottom of the gasket 4 is in contact with the top of the expansion sleeve 5. An adjusting structure 2 is arranged on one side of the screw rod 1, which is convenient for adjusting the length of the screw when the hole is deep and for use of the staff.

[0024] The adjusting structure 2 comprises a threaded rod 2a1, the bottom of which is threadedly connected to the bottom inner wall of the screw rod 1. A slanted block 2a2 is fixedly connected to the bottom of the threaded rod 2a1, which is convenient for adjusting the length of the screw when the hole is deep and for use of the staff.

[0025] Working principle:

[0026] When the indoor unit of the air conditioner is fixed:

[0027] A hole is drilled in the wall by an external drill bit. When the hole is drilled deep, the slanted block 2a2 is rotated, which drives the threaded rod 2a1 to rotate. The threaded rod 2a1 moves downward in the bottom inner wall of the screw rod 1, which in turn drives the slanted block 2a2 to move downward, and thus the screw is adjusted to an appropriate size. The mounting bracket of the indoor unit of the air conditioner is placed at the hole, the expansion sleeve 5 is inserted into the hole after passing through the mounting bracket of the indoor unit of the air conditioner, the nut 3 is rotated, which moves downward in the outer wall of the screw rod 1. The nut 3 extrudes the gasket 4 and the expansion sleeve 5 downward. The expansion sleeve 5 is deformed outward due to the expansion groove 6, and thus the fixing work is completed. The indoor unit of the air conditioner is connected with the mounting bracket, and thus the fixing and installation of the indoor unit of the air conditioner are completed. When the screw is used, if the nut 3 and the screw rod 1 are blocked, the lubricating oil is injected through the oil injection channel 7. The lubricating oil flows along the oil injection channel 7, and flows out of the through hole 8. At this time, the position where the nut 3 and the screw rod 1 are connected can be directly acted on by the lubricating oil, and thus the lubricating work is realized, which is convenient for use of the staff.

[0028] Embodiment 2: Refer to the attached Figs. 1-6 : In the embodiment, the adjusting structure 2 can further comprise a stop block 2b1, the inner wall of which is fixedly connected to the upper outer wall of the threaded rod 2a1, and the outer wall of which is in contact with the lower inner wall of the screw rod 1.

[0029] Working principle:

[0030] The stopper 2b1 is arranged to limit the movement of the threaded rod 2a1, avoiding the threaded rod 2a1 from moving out of the inner wall of the screw rod 1.

[0031] Although the utility model has been illustrated and described by referring to the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details can be made within the scope of the claims.

Claims

1. A screw for fastening an indoor unit of an air conditioner, comprising a screw rod (1), characterized in that: The outer wall of the screw rod (1) is threadedly connected with a nut (3), the outer wall of the screw rod (1) is fixedly connected with an expansion sleeve (5), the inner wall of one side of the expansion sleeve (5) is processed with an expansion groove (6), and one side of the screw rod (1) is provided with an adjusting structure (2).

2. The screw for fastening an indoor unit of an air conditioner according to claim 1, characterized in that: The adjusting structure (2) comprises a threaded rod (2a1), the bottom inner wall of the threaded rod (2a1) is threadedly connected with the bottom inner wall of the screw rod (1), and the bottom of the threaded rod (2a1) is fixedly connected with an inclined block (2a2).

3. The screw for fastening an indoor unit of an air conditioner according to claim 1, wherein: The inner wall of the screw rod (1) is processed with an oil injection channel (7) in the upper portion.

4. The screw for fastening an indoor unit of an air conditioner according to claim 1, wherein: The inner wall of one side of the screw rod (1) is processed with a through hole (8) in the upper portion.

5. The screw for fastening an indoor unit of an air conditioner according to claim 1, wherein: The outer wall of the screw rod (1) is clearance-fitted with a gasket (4) in the upper portion.

6. The screw for fastening an air conditioner indoor unit according to claim 5, wherein: The bottom of the gasket (4) is attached to the top of the expansion sleeve (5).

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