A kind of ceiling for prefabricated decoration

Abstract

The invention discloses a ceiling with assembled decoration, which belongs to the technical field of ceiling, and comprises a first combined ceiling board, a second combined ceiling board, an oil box, an expansion sleeve, a connecting component, an assembly component and an oiling brush. The invention has an assembly component installed inside, and the assembly component consists of an assembly stud and a rotating sleeve. When installing the ceiling board, the rotating sleeve is directly rotated, and the rotating sleeve can automatically drive the assembly stud to move outward, and is directly threadedly connected to the threaded hole of the ceiling groove at the top of the building, so as to complete the rapid installation of the ceiling board. At the same time, a hidden design is adopted for the assembly component, which will not affect the aesthetics of the overall ceiling board after installation. At the same time, an oil box is installed in a top groove opened on the side of the ceiling board, and the oiling brush installed outside the oil box can be in close contact with the assembly stud, thereby effectively ensuring the lubrication of the assembly stud, saving effort and being smooth when rotating the assembly stud, and ensuring the efficiency of the ceiling board installation.

Description

Technical Field

[0001] The invention belongs to the technical field of ceilings, and in particular relates to an assembled decorated ceiling. Background Art

[0002] Ceilings are some tooling boards on the top surface of the building. People's sight often contacts them for a long time, so the shape and treatment of the ceiling obviously affect the spatial effect. There are many materials for ceiling boards, and ceiling boards of different materials have different functions. Generally speaking, they mainly include mineral wool boards, gypsum boards, wood boards, plastic steel boards, aluminum gussets, glass, metals, etc. In the current home decoration, ceilings can be divided into kitchen and bathroom ceilings, living room and bedroom ceilings, corridor ceilings, tooling ceilings and other types according to the decoration location. According to the material, they can be divided into gypsum ceilings, plastic steel ceilings, glass ceilings, and metal ceilings. Among them, metal ceilings have developed the fastest, mainly integrated ceilings. At present, integrated ceilings have also developed very rapidly. The function of ceilings has developed from covering up ugliness at the beginning to requiring beauty, sound insulation and many other functions. It has become an integral part of home life. When decorating, ceilings are an indispensable and important structure, and the importance of their structure is self-evident.

[0003] The Chinese patent discloses (CN201820801440.0) a ceiling, comprising a ceiling, a ceiling lamp installed on the ceiling, an inspection port and an opening fan covering the inspection port, wherein the inspection port is opened on a side adjacent to the ceiling lamp, the opening fan is hinged at a side edge of the inspection port away from the ceiling lamp, a slide groove extending in the length direction of the side is opened on the side of the opening fan, a slider is slidably connected in the slide groove, a connecting rod is hinged on the side edge of the inspection port, one end of the connecting rod is hinged on the slider, and the other end of the connecting rod is fixedly connected to an arc-shaped rack with the middle hinge point of the connecting rod as the center of the circle, a driving component is provided on the ceiling that meshes with the arc-shaped rack to drive the arc-shaped rack to move, and the above-mentioned technical scheme is adopted, the inspection port is opened on a side adjacent to the ceiling lamp, which is convenient for the replacement and maintenance of the ceiling ceiling lamp, and the hinged side The connection is convenient for the opening fan to rotate during the opening and closing process. The slide groove is used for the sliding of the slider. The driving component drives the arc-shaped rack with the middle hinge point of the connecting rod as the center to move. The movement of the arc-shaped rack drives the connecting rod to move and support the opening fan. The movement of the connecting rod drives the slider hinged on the connecting rod in the opening fan slide groove to slide, thereby realizing the opening process of the opening fan, which is convenient for the later replacement and maintenance of the ceiling lamp without affecting the overall stability of the ceiling, and is convenient for the opening and closing of the opening fan. The opening fan can be opened at a fixed angle for easy maintenance. However, the ceiling panel is not equipped with any fireproof structure. When a fire occurs in a building, the fire spreads upward and the temperature of the outer flame is the highest. Therefore, the ceiling panel is very easy to ignite, causing serious chain fire that cannot be controlled. The safety of use is poor and certain improvements are needed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that traditional ceiling panels do not have any fireproof structure installed inside. When a fire occurs in a building, the fire spreads upward and the temperature of the outer flame is the highest. Therefore, the ceiling panels are easily ignited, causing serious chain fires that cannot be controlled and are unsafe to use. A prefabricated ceiling is proposed to solve the problem that

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an assembled ceiling, comprising a first combined ceiling panel, a second combined ceiling panel, an oil box, an expansion sleeve, a connecting component, an assembly component and an oiling brush, a second combined ceiling panel having an assembly side panel being fixedly installed on one side of the first combined ceiling panel, an inner groove being provided inside the first combined ceiling panel, a connecting component being fixedly installed inside the inner groove, outer grooves being provided on the outer surfaces of the first combined ceiling panel and the second combined ceiling panel, an assembly inner groove being provided inside the first combined ceiling panel, the assembly side panel being located in the assembly inner groove, an expansion sleeve being fixedly installed inside the assembly inner groove, and the interior of the expansion sleeve being filled with fire extinguishing liquid.

[0006] As a further description of the above technical solution:

[0007] The first combined ceiling panel and the second combined ceiling panel have the same size specifications.

[0008] As a further description of the above technical solution:

[0009] The connecting assembly is composed of a first connecting spring, a protrusion, a connecting shaft and a sliding sleeve. The connecting shaft is slidably mounted inside the sliding sleeve, and the protrusion is fixedly mounted on an outer wall of one side of the connecting shaft.

[0010] As a further description of the above technical solution:

[0011] The first connecting spring is fixedly installed in the inner groove, one end of the first connecting spring is fixedly connected to one end of the connecting shaft, and one end of the connecting shaft is embedded in the connecting hole opened inside the assembly side plate.

[0012] As a further description of the above technical solution:

[0013] A travel groove is provided on the outer surface of the first combined ceiling plate, and the protrusion is located in the travel groove.

[0014] As a further description of the above technical solution:

[0015] An assembly component is installed inside the outer groove, and the assembly component consists of an assembly stud and a swivel sleeve. The assembly stud is slidably installed in the outer groove through a limit rod, and one end of the assembly stud passes through and extends to the outside of the first combined ceiling panel and the second combined ceiling panel.

[0016] As a further description of the above technical solution:

[0017] The external thread of the assembly stud is equipped with a rotating sleeve, and the rotating sleeve is provided with a wheel groove.

[0018] As a further description of the above technical solution:

[0019] The external thread of the assembly stud is installed with a rotating sleeve, and the rotating sleeve is provided with a wheel groove. The outer surfaces of the first combined ceiling panel and the second combined ceiling panel are fixedly installed with mounting frames, and a pulley is rotatably installed on the mounting frame. The pulley is slidably connected with the wheel groove, and the assembly component is installed with four of them about the transverse center axis of the first combined ceiling panel and the second combined ceiling panel.

[0020] As a further description of the above technical solution:

[0021] A top groove is provided on the top of the first combined ceiling plate and the second combined ceiling plate, an oil box is fixedly installed on the top groove, an inner slide rail is fixedly installed on the inner wall of the top groove, and the top groove is a bevel groove.

[0022] As a further description of the above technical solution:

[0023] An oil guide pipe is fixedly installed on one side outer wall of the oil box, and an oiling brush is slidably sleeved on the oil guide pipe. The oiling brush fits tightly with the assembly stud, and the oiling brush is slidably connected to the inner slide rail. One side wall of the oil box is connected to the side surface of the oiling brush through a second connecting spring.

[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0025] 1. In the present invention, an assembly component is installed inside, and the assembly component consists of an assembly stud and a rotating sleeve. When installing the ceiling panel, the rotating sleeve is directly rotated, and the rotating sleeve can automatically drive the assembly stud to move outward, and is directly threaded into the threaded hole of the ceiling groove at the top of the building, so as to complete the rapid installation of the ceiling panel. At the same time, a hidden design is adopted for the assembly component, which will not affect the aesthetics of the overall ceiling panel after installation. At the same time, an oil box is installed in the top groove opened on the side of the ceiling panel, and the oiling brush installed outside the oil box can be in contact with the assembly stud, thereby effectively ensuring the lubrication of the assembly stud, saving effort and being smooth when rotating the assembly stud, thereby ensuring the efficiency of the ceiling panel installation.

[0026] 2. In the present invention, a connecting component is installed inside, and the connecting component consists of a first connecting spring, a protrusion, a connecting shaft and a sliding sleeve. When the ceiling is normally assembled, the second combined ceiling panel is directly pushed into the first combined ceiling panel, and the connecting shaft will slide on the assembly side panel. When the connecting shaft encounters the connecting hole in the assembly side panel, the first connecting spring will automatically clip the connecting shaft into the connecting hole, thereby completing the rapid assembly of the first combined ceiling panel and the second combined ceiling panel, and the assembly is convenient and quick.

[0027] 3. In the present invention, an expansion sleeve is provided in the assembly inner groove opened in the first combined ceiling panel, and a large amount of fire extinguishing liquid is filled in the expansion sleeve. After the first combined ceiling panel and the second combined ceiling panel are assembled normally, the assembly side panel of the second combined ceiling panel can effectively squeeze the expansion sleeve, and the expansion sleeve expands due to squeezing, so that its sensitivity to high temperature is improved. When a fire occurs in the building, the temperature of the flame spreading upward will be quickly transmitted to the expanded expansion sleeve, and the expansion sleeve will rupture due to the temperature, and the fire extinguishing liquid inside will pour out in large quantities, so that the fire can be quickly and effectively controlled, and the use safety is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a partial cross-sectional view of the main view of a prefabricated ceiling.

[0029] Figure 2 The figure is a side view of a prefabricated ceiling.

[0030] Figure 3 It is a partial cross-sectional view of a first combined ceiling panel in an assembled ceiling.

[0031] Figure 4 This is an enlarged structural diagram of point A in a prefabricated ceiling.

[0032] Figure 5 This is an enlarged structural diagram of point B in a prefabricated ceiling.

[0033] Figure 6 This is an enlarged structural diagram of point C in a prefabricated ceiling.

[0034] Legend:

[0035] 1. First combination ceiling board; 2. Second combination ceiling board; 3. Top groove; 4. Oil box; 5. Assembly inner groove; 6. Fire extinguishing agent liquid; 7. Expansion sleeve; 8. Inner groove; 9. Connecting assembly; 91. First connecting spring; 92. Bump; 93. Connecting shaft; 94. Sliding sleeve; 10. Connecting hole; 11. Assembly side panel; 12. Assembly assembly; 121. Assembly stud; 122. Wheel groove; 123. Rotating sleeve; 13. Outer groove; 14. Mounting frame; 15. Pulley; 16. Inner slide rail; 17. Oil guide pipe; 18. Second connecting spring; 19. Oiling brush. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 are within the scope of protection of the present invention.

[0037] See also Figure 1-6 The present invention provides a technical solution: a prefabricated ceiling, comprising a first combined ceiling panel 1, a second combined ceiling panel 2, an oil box 4, an expansion sleeve 7, a connection assembly 9, an assembly assembly 12 and an oiling brush 19, a second combined ceiling panel 2 having an assembly side panel 11 is fixedly installed on one side of the first combined ceiling panel 1, the first combined ceiling panel 1 and the second combined ceiling panel 2 have the same size specifications, and by making the first combined ceiling panel 1 and the second combined ceiling panel 2 have the same size specifications, it is convenient to effectively assemble the first combined ceiling panel 1 and the second combined ceiling panel 2;

[0038] An inner groove 8 is provided inside the first combined ceiling panel 1, and a connecting component 9 is fixedly installed in the inner groove 8. The connecting component 9 is composed of a first connecting spring 91, a protrusion 92, a connecting shaft 93 and a sliding sleeve 94. The connecting shaft 93 is slidably installed in the interior of the sliding sleeve 94, and the protrusion 92 is fixedly installed on one side outer wall of the connecting shaft 93. The first connecting spring 91 is fixedly installed in the inner groove 8, and one end of the first connecting spring 91 is fixedly connected to one end of the connecting shaft 93, and one end of the connecting shaft 93 is embedded in the connecting hole 10 provided inside the assembly side plate 11. By installing the connecting component 9, the connecting component 9 is composed of a first connecting spring 91, a protrusion 92, a connecting shaft 93 and a sliding sleeve 94, so that the connecting shaft 93 is slidably installed in the interior of the sliding sleeve 94, and the protrusion 92 is fixedly installed on one side outer wall of the connecting shaft 93. The first connecting spring 91 is fixedly installed in the inner groove 8, and one end of the first connecting spring 91 is fixedly connected to one end of the connecting shaft 93 Then, one end of the connecting shaft 93 is embedded in the connecting hole 10 provided inside the assembly side plate 11, and the first combined ceiling panel 1 and the second combined ceiling panel 2 are assembled first, so that the first combined ceiling panel 1 and the second combined ceiling panel 2 are placed in a plane, and the upper and lower end surfaces are aligned, so that the first combined ceiling panel 1 and the second combined ceiling panel 2 are close to each other, and the assembly side plate 11 of the second combined ceiling panel 2 is installed in the assembly inner groove 5, and the connecting shaft 93 is moved by the protrusion 92 so that the connecting shaft 93 is located at the top of the assembly side plate 11 and slides. When the connecting shaft 93 encounters the connecting hole in the assembly side plate 11, the first connecting spring 91 will automatically insert the connecting shaft 93 into the connecting hole, and the rapid assembly of the first combined ceiling panel 1 and the second combined ceiling panel 2 is completed. A travel groove is provided on the outer surface of the first combined ceiling panel 1, and the protrusion 92 is located in the travel groove. By providing a travel groove, the protrusion 92 is located in the travel groove, and the connecting shaft 93 can be effectively moved by the protrusion 92;

[0039] The outer surfaces of the first and second combined ceiling panels 1 and 2 are provided with outer grooves 13, and an assembly component 12 is installed inside the outer grooves 13. The assembly component 12 consists of an assembly stud 121 and a rotating sleeve 123. The assembly stud 121 is slidably installed in the outer grooves 13 through a limiting rod, and one end of the assembly stud 121 passes through and extends to the outside of the first and second combined ceiling panels 1 and 2. The outer threads of the assembly stud 121 are provided with a rotating sleeve 123, and the rotating sleeve 123 is provided with a wheel groove 122. The outer threads of the assembly stud 121 are provided with a rotating sleeve 123. The rotating sleeve 123 is provided with a wheel groove 122. The outer surfaces of the first combined ceiling panel 1 and the second combined ceiling panel 2 are fixedly installed with a mounting frame 14. A pulley 15 is rotatably installed on the mounting frame 14. The pulley 15 is slidably connected with the wheel groove 122. The assembly component 12 is installed with four outer grooves 13, and the assembly component 12 is installed inside the outer groove 13. The assembly component 12 consists of an assembly stud 121 and a rotating sleeve 123. The assembly stud 121 is slidably installed in the outer groove 13 through a limiting rod. One end of the stud 121 passes through and extends to the outside of the first combined ceiling panel 1 and the second combined ceiling panel 2, the external thread of the stud 121 is installed with a rotating sleeve 123, and the rotating sleeve 123 is provided with a wheel groove 122. The external thread of the stud 121 is installed with a rotating sleeve 123, and the rotating sleeve 123 is provided with a wheel groove 122. The outer surfaces of the first combined ceiling panel 1 and the second combined ceiling panel 2 are fixedly installed with a mounting frame 14, and a pulley 15 is rotatably installed on the mounting frame 14. The pulley 15 is slidably connected to the wheel groove 122. The assembly component 12 is about the horizontal center of the first combined ceiling panel 1 and the second combined ceiling panel 2. There are four spindles installed for this purpose, and then the overall ceiling panel is installed. When installing the ceiling panel, the first combined ceiling panel 1 and the second combined ceiling panel 2 are placed in the panel groove on the top surface of the building, and the rotating sleeves 123 on the first combined ceiling panel 1 and the second combined ceiling panel 2 are directly rotated. The rotating sleeves 123 can automatically drive the assembly studs 121 to move outward, and are directly threadedly connected to the threaded holes of the ceiling groove on the top of the building, so as to complete the rapid installation of the first combined ceiling panel 1 and the second combined ceiling panel 2. At the same time, the assembly component 12 is designed to be hidden, which will not affect the aesthetics of the overall ceiling panel after installation;

[0040] A top groove 3 is provided on the top of the first combined ceiling panel 1 and the second combined ceiling panel 2, an oil box 4 is fixedly installed on the top groove 3, an inner slide rail 16 is fixedly installed on the inner wall of the top groove 3, the top groove 3 is a bevel groove, an oil guide pipe 17 is fixedly installed on one side outer wall of the oil box 4, an oiling brush 19 is slidably sleeved on the oiling brush 19, the oiling brush 19 is tightly fitted with the assembly stud 121, the oiling brush 19 is slidably connected with the inner slide rail 16, a side wall of the oil box 4 is connected to the side surface of the oiling brush 19 by a second connecting spring 18, An inner slide rail 16 is fixedly installed on the inner wall, the top groove 3 is a bevel groove, an oil guide pipe 17 is fixedly installed on the outer wall of one side of the oil box 4, an oiling brush 19 is slidably sleeved on the oil guide pipe 17, the oiling brush 19 is tightly fitted with the assembly stud 121, the oiling brush 19 is slidably connected with the inner slide rail 16, a side wall of the oil box 4 and the side surface of the oiling brush 19 are connected by a second connecting spring 18, the oiling brush 19 installed on the outside of the oil box 4 can be in contact with the assembly stud 121, thereby effectively ensuring the lubrication of the assembly stud 121, and it is relatively labor-saving and smooth when rotating the assembly stud 121, thereby ensuring the efficiency of the ceiling panel installation;

[0041] An assembly inner groove 5 is provided inside the first combined ceiling panel 1, and the assembly side panel 11 is located in the assembly inner groove 5. An expansion sleeve 7 is fixedly installed inside the assembly inner groove 5, and the expansion sleeve 7 is filled with fire extinguishing liquid 6. After the first combined ceiling panel 1 and the second combined ceiling panel 2 are assembled normally, the assembly side panel 11 of the second combined ceiling panel 2 can effectively squeeze the expansion sleeve 7, and the expansion sleeve 7 expands due to squeezing, thereby increasing its sensitivity to high temperature. When a fire occurs in the building, the temperature of the flame spreading upward will be quickly transmitted to the expanded expansion sleeve 7, and the expansion sleeve 7 will rupture due to the temperature, and the internal fire extinguishing liquid 6 will pour out in large quantities, so that the fire can be quickly and effectively controlled, and the use safety is good.

[0042] Working principle: first assemble the first combined ceiling panel 1 and the second combined ceiling panel 2, place the first combined ceiling panel 1 and the second combined ceiling panel 2 in a plane, align the upper and lower end surfaces, make the first combined ceiling panel 1 and the second combined ceiling panel 2 close to each other, install the assembly side panel 11 of the second combined ceiling panel 2 into the assembly inner groove 5, move the connecting shaft 93 through the protrusion 92, make the connecting shaft 93 slide on the top of the assembly side panel 11, when the connecting shaft 93 encounters the connecting hole in the assembly side panel 11, the first The connecting spring 91 will automatically insert the connecting shaft 93 into the connecting hole to complete the quick assembly of the first combined ceiling panel 1 and the second combined ceiling panel 2, and then install the overall ceiling panel. When installing the ceiling panel, place the first combined ceiling panel 1 and the second combined ceiling panel 2 in the panel groove on the top surface of the building, and directly rotate the rotating sleeve 123 on the first combined ceiling panel 1 and the second combined ceiling panel 2. The rotating sleeve 123 can automatically drive the assembly stud 121 to move outward and directly thread it to the top of the building. The first and second combination ceiling panels 1 and 2 are quickly installed in the threaded holes of the ceiling grooves. At the same time, the assembly components 12 are designed to be hidden, which will not affect the aesthetics of the overall ceiling panels after installation. At the same time, an oil box 4 is installed in the top groove 3 opened on the side of the ceiling panel. The oiling brush 19 installed outside the oil box 4 can fit and contact with the assembly studs 121, thereby effectively ensuring the lubrication of the assembly studs 121. It is more labor-saving and smooth when rotating the assembly studs 121, thereby ensuring the efficiency of the ceiling panel installation. After the first and second combination ceiling panels 1 and 2 are assembled normally, the assembly side plate 11 of the second combination ceiling panel 2 can effectively squeeze the expansion sleeve 7, and the expansion sleeve 7 is squeezed and expanded, so that its sensitivity to high temperature is increased. When a fire occurs in a building, the temperature of the flame spreading upward will be quickly transmitted to the expanded expansion sleeve 7, and the expansion sleeve 7 will rupture due to the temperature, and the internal fire extinguishing agent liquid 6 will pour out in large quantities, so that the fire can be quickly and effectively controlled, and the use safety is good.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A prefabricated ceiling, comprising a first combined ceiling panel (1), a second combined ceiling panel (2), an oil box (4), an expansion sleeve (7), a connection assembly (9) and an assembly assembly (12) and an oiling brush (19), characterized in that: A second combined ceiling panel (2) having an assembly side panel (11) is fixedly installed on one side of the first combined ceiling panel (1); an inner groove (8) is provided inside the first combined ceiling panel (1); a connecting component (9) is fixedly installed inside the inner groove (8); outer grooves (13) are provided on the outer surfaces of the first combined ceiling panel (1) and the second combined ceiling panel (2); an assembly inner groove (5) is provided inside the first combined ceiling panel (1); and the assembly side panel (11) is provided with a plurality of connecting components. Located in the assembly inner groove (5), an expansion sleeve (7) is fixedly installed inside the assembly inner groove (5), and the interior of the expansion sleeve (7) is filled with fire extinguishing liquid (6). The first combined ceiling panel (1) and the second combined ceiling panel (2) have the same size specifications. The connecting component (9) is composed of a first connecting spring (91), a protrusion (92), a connecting shaft (93) and a sliding sleeve (94). The connecting shaft (93) is slidably installed inside the sliding sleeve (94), the protrusion (92) is fixedly installed on one side outer wall of the connecting shaft (93), and the first connecting spring (91) is fixedly installed. In the inner groove (8), one end of the first connecting spring (91) is fixedly connected to one end of the connecting shaft (93), and one end of the connecting shaft (93) is embedded in the connecting hole (10) provided inside the assembly side plate (11). A travel groove is provided on the outer surface of the first combined ceiling plate (1), and the protrusion (92) is located in the travel groove. An assembly component (12) is installed inside the outer groove (13), and the assembly component (12) is composed of an assembly stud (121) and a rotating sleeve (123). The assembly stud (121) is slidably installed in the outer groove (13) through a limiting rod. One end of the assembly stud (121) passes through and extends to the outer sides of the first combined ceiling panel (1) and the second combined ceiling panel (2).

2. The prefabricated ceiling according to claim 1, characterized in that: The external thread of the assembly stud (121) is provided with a rotating sleeve (123), and the rotating sleeve (123) is provided with a wheel groove (122).

3. The assembled ceiling according to claim 2 is characterized in that: The external thread of the assembly stud (121) is installed with a rotating sleeve (123), and a wheel groove (122) is opened on the rotating sleeve (123). The outer surfaces of the first combined ceiling panel (1) and the second combined ceiling panel (2) are fixedly installed with a mounting frame (14), and a pulley (15) is rotatably installed on the mounting frame (14), and the pulley (15) is slidably connected to the wheel groove (122). The assembly component (12) is installed with four of them with respect to the transverse center axis of the first combined ceiling panel (1) and the second combined ceiling panel (2).

4. The assembled ceiling according to claim 3 is characterized in that: A top groove (3) is provided on the top of the first combined ceiling panel (1) and the second combined ceiling panel (2); an oil box (4) is fixedly mounted on the top groove (3); an inner slide rail (16) is fixedly mounted on the inner wall of the top groove (3); and the top groove (3) is a bevel groove.

5. The assembled ceiling according to claim 4 is characterized in that: An oil guide tube (17) is fixedly mounted on an outer wall of one side of the oil box (4); an oiling brush (19) is slidably mounted on the oil guide tube (17); the oiling brush (19) is tightly fitted to the assembly stud (121); the oiling brush (19) is slidably connected to the inner slide rail (16); and a side wall of the oil box (4) and a side surface of the oiling brush (19) are connected via a second connecting spring (18).

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