Air conditioner screw device with high-corrosion-resistance coating

Abstract

The air conditioner screw device comprises a screw rod, an outer hexagonal screw head and a gasket, the screw rod is divided into a smooth section and a threaded section, the threaded section is located in a mounting hole and connected with the mounting hole through threads, and a pressing piece and the outer hexagonal screw head are arranged at the top end of the screw rod. A gasket is connected between the pressing plate and the air conditioner outdoor unit, the surfaces of the screw rod, the pressing plate, the outer hexagonal screwing head and the gasket are all provided with zinc-nickel plating layers with high corrosion resistance, the corrosion resistance of the screw is improved, after the screw rod is installed, the threaded section is contained in the installation hole, and the smooth section can effectively prevent the threaded section from being damaged by corrosion; and therefore, the influence of corrosion on the fastening performance of the screw can be effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner outdoor unit technology, specifically to an air conditioner screw device with a high corrosion-resistant coating. Background Technology

[0002] An air conditioner, also known as an air conditioner, is a device that uses artificial means to partially or completely regulate the temperature, humidity, airflow, and cleanliness of air in a closed space, so that the air parameters of the target environment meet the requirements. It generally includes cold and heat source equipment, cold and heat medium system, terminal devices, and other auxiliary equipment, mainly including water pumps, fans, and pipeline systems.

[0003] Air conditioners are generally equipped with an outdoor unit. When assembling and installing the outdoor unit, screws are needed for fixing. However, existing air conditioner screws often have the following problems: 1. Most existing air conditioner outdoor units are placed outdoors. The screws used for the outdoor unit are mostly poorly corrosion-resistant. They are easily corroded after long-term outdoor use, which leads to problems such as breakage and reduced tightness; 2. After installation, the external hexagonal heads of existing air conditioner screws, which are used for easy wrench gripping, are mostly exposed to the outside, making them prone to corrosion and rust, affecting subsequent disassembly of the screws. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the above and / or the existing air conditioner screw device with a high corrosion resistant coating, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide an air conditioner screw device with a high corrosion-resistant coating. The screw is divided into a smooth section and a threaded section. The threaded section is located inside the mounting hole and connected by threads. A pressure plate and an external hexagonal head are provided at the top of the screw. A gasket is connected between the pressure plate and the outdoor unit of the air conditioner. By applying a zinc-nickel high corrosion-resistant coating to the surfaces of the screw, pressure plate, external hexagonal head and gasket, the corrosion resistance of the screw is improved. After the screw is installed, the threaded section is retracted into the mounting hole. The smooth section can effectively prevent corrosion from damaging the threaded section, thereby effectively preventing corrosion from affecting the tightness of the screw.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] An air conditioner screw assembly with a high corrosion-resistant coating, comprising:

[0009] The screw includes a smooth section and a threaded section located at the bottom of the smooth section. The smooth section and the threaded section are integral. The length of the threaded section is greater than the length of the smooth section. A pressure plate is installed on the top of the smooth section. The pressure plate has a circular structure. The top of the smooth section is welded and fixed to the center of the bottom of the pressure plate.

[0010] An external hexagonal screw head is installed at the center of the top of the tablet. The top of the external hexagonal screw head has a drive groove with a cross-shaped structure. The outer diameter of the external hexagonal screw head is smaller than the outer diameter of the tablet.

[0011] A gasket is located between the pressure plate and the outer wall of the outdoor unit of the air conditioner. The inner diameter of the gasket is larger than the outer diameter of the smooth section. The outer diameter of the gasket is the same as the outer diameter of the pressure plate. The thickness of the gasket is less than the thickness of the pressure plate. The gasket is coaxial with the pressure plate and the smooth section penetrates the inner diameter of the gasket.

[0012] The smooth section, the threaded section, the pressure plate, the external hexagonal screw head, and the gasket all have zinc-nickel high corrosion-resistant plating.

[0013] In a preferred embodiment of the air conditioner screw device with a high corrosion-resistant coating described in this utility model, a rubber washer is installed at the bottom of the washer. The rubber washer is made of rubber, is circular and coaxial with the washer, and has an outer diameter smaller than the outer diameter of the washer and an inner diameter larger than the inner diameter of the washer.

[0014] As a preferred embodiment of the air conditioner screw device with a high corrosion-resistant coating described in this utility model, a cross-shaped insertion hole is provided at the center of the top of the pressure plate, the cross-shaped insertion hole extends into the interior of the smooth section, and two positioning holes are provided on the top of the pressure plate. The two positioning holes are cylindrical and symmetrically provided on the top of the pressure plate with the cross-shaped insertion hole as the center.

[0015] As a preferred embodiment of the air conditioner screw device with a high corrosion-resistant coating described in this utility model, a cross-shaped insert is installed at the center of the bottom of the external hexagonal screw head. The cross-shaped insert has the same shape as the cross-shaped socket. When the bottom of the external hexagonal screw head abuts against the top of the pressure plate, the cross-shaped insert extends into the cross-shaped socket.

[0016] As a preferred embodiment of the air conditioner screw device with a high corrosion-resistant coating described in this utility model, two first positioning rods are symmetrically arranged at the bottom of the external hexagonal screw head. The first positioning rods have the same shape as the positioning holes, and the two first positioning rods correspond to the positions of the two positioning holes. When the external hexagonal screw head is located at the top of the pressure plate, the first positioning rods extend into the corresponding positioning holes.

[0017] As a preferred embodiment of the air conditioner screw device with a high corrosion-resistant coating described in this utility model, it further includes a rubber protective sleeve. The bottom of the rubber protective sleeve has a groove with the same shape as the pressure plate. The outer diameter of the groove is the same as the outer diameter of the pressure plate, and the thickness of the groove is the same as the thickness of the pressure plate. Two second positioning rods are installed at the top of the groove corresponding to the two positioning holes. A pry bar is installed on the outer wall of the rubber protective sleeve.

[0018] Compared with existing technologies: By dividing the screw into a smooth section and a threaded section, with the threaded section located inside the mounting hole and connected by threads, and a pressure plate and an external hexagonal head set at the top of the screw, and a gasket connecting the pressure plate and the outdoor unit of the air conditioner, the corrosion resistance of the screw is improved by using a zinc-nickel high corrosion-resistant coating on the surfaces of the screw, pressure plate, external hexagonal head and gasket. After the screw is installed, the threaded section is retracted into the mounting hole, and the smooth section can effectively prevent corrosion from damaging the threaded section, thereby effectively preventing corrosion from affecting the tightness of the screw. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is an overall structural diagram of an air conditioner screw device with a high corrosion-resistant coating according to this utility model;

[0021] Figure 2 This is a partial structural diagram of an air conditioner screw assembly with a high corrosion-resistant coating according to this utility model;

[0022] Figure 3 This is a structural diagram of the external hexagonal screw head of an air conditioner screw device with a high corrosion-resistant coating according to this utility model;

[0023] Figure 4 This is a structural diagram of a rubber protective sleeve for an air conditioner screw device with a high corrosion-resistant coating, according to this utility model. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0027] This utility model provides an air conditioner screw device with a high corrosion-resistant coating. The screw is divided into a smooth section and a threaded section. The threaded section is located inside the mounting hole and connected by threads. A pressure plate and an external hexagonal head are provided at the top of the screw. A washer is connected between the pressure plate and the outdoor unit of the air conditioner. By applying a zinc-nickel high corrosion-resistant coating to the surfaces of the screw, pressure plate, external hexagonal head and washer, the corrosion resistance of the screw is improved. After the screw is installed, the threaded section is retracted into the mounting hole. The smooth section can effectively prevent corrosion from damaging the threaded section, thereby effectively preventing corrosion from affecting the tightness of the screw.

[0028] Example 1

[0029] Regarding the above-mentioned problem 1: Most existing air conditioner outdoor units are placed outdoors. The screws used for these outdoor units are mostly poorly corrosion-resistant and are prone to corrosion after prolonged outdoor use, leading to problems such as breakage and reduced tightness.

[0030] The solution is as follows: This embodiment of an air conditioner screw device with a high corrosion-resistant coating includes a screw 100, an external hexagonal screw head 200, and a washer 300.

[0031] The screw 100 includes a smooth section 110 and a threaded section 120 located at the bottom of the smooth section 110. The smooth section 110 and the threaded section 120 are integral. The length of the threaded section 120 is greater than the length of the smooth section 110. A pressure plate 130 is mounted on the top of the smooth section 110. The pressure plate 130 has a circular structure. The top of the smooth section 110 is welded and fixed to the center of the bottom of the pressure plate 130. An external hexagonal screw head 200 is mounted at the center of the top of the pressure plate 130. A drive groove 210 is formed on the top of the external hexagonal screw head 200. The drive groove 210 has a cross-shaped structure. Not shown in the figure, the drive groove in this embodiment is... 210 can be a slotted groove, cross groove, internal hexagonal groove, Torx groove, or slotted recess, etc., to facilitate connection of different drive tools. The outer diameter of the external hexagonal screwdriver 200 is smaller than the outer diameter of the pressure plate 130. The gasket 300 is located between the pressure plate 130 and the outer wall of the outdoor unit of the air conditioner. The inner diameter of the gasket 300 is larger than the outer diameter of the smooth section 110. The outer diameter of the gasket 300 is the same as the outer diameter of the pressure plate 130. The thickness of the gasket 300 is less than the thickness of the pressure plate 130. The gasket 300 and the pressure plate 130 are coaxial, and the smooth section 110 penetrates the inner diameter of the gasket 300. The smooth section 110, threaded section 120, pressure plate 130, external hexagonal screwdriver 200, and gasket 300 are all present. The surface of the gasket 300 is coated with a zinc-nickel high corrosion-resistant layer, which can effectively improve the corrosion resistance of the screw 100, the external hexagonal head 200, and the gasket 300. A rubber washer 310 is installed at the bottom of the gasket 300. The rubber washer 310 is made of rubber, is circular, and coaxial with the gasket 300. The outer diameter of the rubber washer 310 is smaller than the outer diameter of the gasket 300, and the inner diameter of the rubber washer 310 is larger than the inner diameter of the gasket 300. Not shown in the figure, in this embodiment, the rubber washer 310 is made of EPDM rubber, which has excellent oxidation resistance and aging resistance. During installation, firstly... Place the gasket 300 on the outer wall of the outdoor unit of the air conditioner. The mounting hole is located on the inner ring of the gasket 300. The rubber washer 310 is pressed against the outer wall of the outdoor unit of the air conditioner. Insert the screw 100 into the mounting hole. Rotate the hexagonal screw head 200 to drive the pressure plate 130 and the screw 100 to rotate. When the threaded section 120 rotates, it is connected to the inside of the mounting hole by the thread. The gasket 300 and the rubber washer 310 can prevent the pressure plate 130 from causing wear to the outdoor unit of the air conditioner when rotating. The rubber washer 310 can also prevent the screw from loosening and, to a certain extent, prevent dust from entering the mounting hole through the joint between the gasket 300 and the outdoor unit of the air conditioner.

[0032] Example 2

[0033] Regarding the second problem to be solved above: After installation, the external hexagonal heads of existing air conditioner screws, which are used for easy wrench gripping, are mostly exposed to the outside, making them prone to corrosion and rust, which affects the subsequent disassembly of the screws.

[0034] The solution is as follows: The air conditioner screw device with a high corrosion-resistant coating in this embodiment also includes a rubber protective sleeve 400.

[0035] A cross-shaped insertion hole 140 is provided at the center of the top of the tablet 130, extending into the smooth section 110. Two positioning holes 150 are provided at the top of the tablet 130. These two positioning holes 150 are cylindrical and symmetrically positioned around the cross-shaped insertion hole 140. A cross-shaped insert 220 is installed at the center of the bottom of the external hexagonal screw head 200. The cross-shaped insert 220 has the same shape as the cross-shaped insertion hole 140. When the bottom of the external hexagonal screw head 200 abuts against the top of the tablet 130, the cross-shaped insert 220 extends into the cross-shaped insertion hole 140. Two first positioning rods 230 are symmetrically arranged on the part. The first positioning rods 230 have the same shape as the positioning holes 150, and the two first positioning rods 230 correspond to the two positioning holes 150. When the external hexagonal screw head 200 is at the top of the pressure plate 130, the first positioning rods 230 extend into the corresponding positioning holes 150. The bottom of the rubber protective sleeve 400 has a groove 410. The groove 410 has the same shape as the pressure plate 130. The outer diameter of the groove 410 is the same as the outer diameter of the pressure plate 130, and the thickness of the groove 410 is the same as the thickness of the pressure plate 130. The top of the groove 410 aligns with the two positioning holes 150. Two second positioning rods 420 are installed at the designated positions. A pry bar 430 is installed on the outer wall of the rubber protective sleeve 400. In this embodiment, the rubber protective sleeve 400 is the same as the rubber washer 310, and the whole is made of EPDM rubber. After the screw 100 and the pressure plate 130 are installed and fixed, the external hexagonal screw head 200 is pulled to drive the cross-shaped insert 220 out of the cross-shaped insert hole 140, and the first positioning rod 230 separates from the positioning hole 150. The rubber protective sleeve 400 is then fitted onto the outer wall of the pressure plate 130, and the second positioning rod 420 is inserted into the positioning hole 150 for positioning. The rubber protective sleeve 400 protects the pressure plate 130 and prevents the external hexagonal screw head 200 from being exposed to air for a long time and causing corrosion. When it is necessary to remove the screw 100, pull the pry bar 430 to separate the rubber protective sleeve 400 from the pressure plate 130, insert the cross pin 220 into the cross pin hole 140, and insert the first positioning pin 230 into the positioning hole 150 until the bottom of the external hexagonal screw head 200 abuts against the top of the pressure plate 130. Use a wrench to rotate the external hexagonal screw head 200, and the cross pin 220 will rotate the pressure plate 130 and the screw 100, so that the screw can be removed.

[0036] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An air conditioner screw assembly with a high corrosion-resistant coating, characterized in that, include: The screw (100) includes a smooth section (110) and a threaded section (120) located at the bottom of the smooth section (110). The smooth section (110) and the threaded section (120) are an integral unit. The length of the threaded section (120) is greater than the length of the smooth section (110). A pressure plate (130) is installed on the top of the smooth section (110). The pressure plate (130) has a circular structure. The top of the smooth section (110) is welded and fixed at the center of the bottom of the pressure plate (130). An external hexagonal screw head (200) is installed at the top center of the pressure plate (130). The external hexagonal screw head (200) has a drive groove (210) on its top. The drive groove (210) has a cross-shaped structure. The outer diameter of the external hexagonal screw head (200) is smaller than the outer diameter of the pressure plate (130). A gasket (300) is located between the pressure plate (130) and the outer wall of the outdoor unit of the air conditioner. The inner diameter of the gasket (300) is larger than the outer diameter of the smooth section (110). The outer diameter of the gasket (300) is the same as the outer diameter of the pressure plate (130). The thickness of the gasket (300) is less than the thickness of the pressure plate (130). The gasket (300) is coaxial with the pressure plate (130) and the smooth section (110) penetrates the inner diameter of the gasket (300). The smooth section (110), the threaded section (120), the pressure plate (130), the external hexagonal screw head (200), and the gasket (300) are all coated with a zinc-nickel high corrosion resistant coating.

2. The air conditioner screw device with a high corrosion-resistant coating according to claim 1, characterized in that, A rubber washer (310) is installed at the bottom of the gasket (300). The rubber washer (310) is made of rubber, is circular and coaxial with the gasket (300), and has an outer diameter smaller than that of the gasket (300) and an inner diameter larger than that of the gasket (300).

3. The air conditioner screw device with a high corrosion-resistant coating according to claim 2, characterized in that, The pressure plate (130) has a cross-shaped insertion hole (140) at the center of its top, which extends into the smooth section (110). The pressure plate (130) also has two positioning holes (150) at its top. The two positioning holes (150) are cylindrical and symmetrically located on the top of the pressure plate (130) with the cross-shaped insertion hole (140) as the center.

4. The air conditioner screw device with a high corrosion-resistant coating according to claim 3, characterized in that, A cross-shaped insert (220) is installed at the center of the bottom of the external hexagonal screw head (200). The cross-shaped insert (220) has the same shape as the cross-shaped socket (140). When the bottom of the external hexagonal screw head (200) abuts against the top of the pressure plate (130), the cross-shaped insert (220) extends into the cross-shaped socket (140).

5. The air conditioner screw assembly with a high corrosion-resistant coating according to claim 4, characterized in that, The bottom of the external hexagonal screw head (200) is symmetrically provided with two first positioning rods (230). The first positioning rods (230) have the same shape as the positioning holes (150), and the two first positioning rods (230) correspond to the two positioning holes (150). When the external hexagonal screw head (200) is located on the top of the pressure plate (130), the first positioning rods (230) extend into the corresponding positioning holes (150).

6. The air conditioner screw assembly with a high corrosion-resistant coating according to claim 5, characterized in that, It also includes a rubber protective sleeve (400), the bottom of which has a groove (410) with the same shape as the pressure plate (130). The outer diameter of the groove (410) is the same as the outer diameter of the pressure plate (130), and the thickness of the groove (410) is the same as the thickness of the pressure plate (130). Two second positioning rods (420) are installed at the top of the groove (410) corresponding to the two positioning holes (150). A pry bar (430) is installed on the outer wall of the rubber protective sleeve (400).

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