Modularized assembly type keel

Abstract

The utility model discloses a modularized assembly type keel which comprises splicing keel structures, connecting profiles installed on the two adjacent splicing keel structures in a sliding mode, a ceiling keel installed on the tops of the splicing keel structures, and adjusting ground foot structures installed at the bottoms of the splicing keel structures. A gypsum board and a plurality of decorative panels are mounted on each assembled keel structure, and the decorative panels are distributed in the height direction of the assembled keel structures. Through the arrangement of the assembled keel structures and the connecting profiles, the transverse keels and the vertical keels can be spliced to form the assembled keel structures before use, and the assembled keel structures can be connected through the connecting profiles in a decoration site without using tools, so that the keel partition wall can be obtained through quick splicing; the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of keels, in particular to a modular assembled keel. Background Art

[0002] At present, the interior decoration technology is developing rapidly, and the requirements for the quality and speed of decoration are increasing. Among them, there are more and more ways and materials for wall decoration in interior decoration. Traditional wallpaper and putty can no longer meet the needs. The use of various shapes and new materials has higher and higher requirements for the base keel. The requirements for construction speed are also getting higher and higher.

[0003] Traditional indoor wall keel installation is to first embed the installation plate on the floor and wall of the building, and then weld a connector on the installation plate. Finally, the keel and the connector are welded and fixed during the subsequent keel installation process.

[0004] With the development of technology, at present, indoor partition walls are mostly made of vertical keels, horizontal keels, sound insulation materials and gypsum boards. However, the existing vertical keels and horizontal keels need to be connected by bolts and other connectors. In the process of installing the partition wall, a large number of tools are needed, which is very troublesome and time-consuming. In addition, cutting and assembly are required at the construction site, which will generate a lot of construction waste and seriously affect the construction efficiency.

[0005] Therefore, providing a keel partition wall that can be quickly assembled without using a large number of tools is a technical problem that is urgently needed to be solved. Utility Model Content

[0006] The purpose of the utility model is to propose a modular assembled keel, in which part of the keel can be assembled in the factory and then transported to the construction site for completion of assembly, thereby solving the technical problem in the background technology that a large number of tools and construction waste are needed when installing the existing keel partition wall, which seriously affects the efficiency of keel assembly and construction efficiency.

[0007] In order to achieve the above-mentioned purpose, the utility model proposes a modular assembled keel, which includes an assembled keel structure, a connecting profile slidably installed on two adjacent assembled keel structures, a ceiling keel installed on the top of the assembled keel structure, and an adjustable anchor structure installed on the bottom of the assembled keel structure; each assembled keel structure is installed with a gypsum board and a plurality of decorative panels, and the decorative panels are distributed along the height direction of the assembled keel structure.

[0008] Optionally, the assembled keel structure includes two vertically arranged keels symmetrically disposed, and multiple horizontally arranged keels installed on the vertically arranged keels; the ceiling keel is installed on the top of the vertically arranged keel, and the adjusting floor structure is installed on the bottom of the vertically arranged keel; the connecting profile is installed on two adjacent and contacting vertically arranged keels for connecting the two adjacent and contacting vertically arranged keels.

[0009] Optionally, the orthographic projection of the vertically arranged keel on a plane perpendicular to the height direction of the vertically arranged keel is an axisymmetric figure.

[0010] Optionally, the vertically arranged keel includes a keel base plate, keel connecting parts installed on both sides of the keel base plate, panel mounting parts arranged on the keel connecting parts, and gypsum board mounting parts arranged on the panel mounting parts. The keel connecting parts are connected to the connecting profile, and the gypsum board mounting parts are connected to the horizontally arranged keels.

[0011] Optionally, the keel base plate, keel connecting parts, panel mounting parts, and gypsum board mounting parts are an integral structure; the keel base plate is arranged in a U shape.

[0012] Optionally, the connecting profile includes a connecting base plate, connecting plates arranged at both ends of the connecting base plate, connecting protrusions arranged on the connecting plates corresponding to the keel connecting parts, and an abutting part arranged at the middle position of the connecting base plate and contacting the keel base plate; the plane of the connecting base plate is flush with the panel mounting part.

[0013] Optionally, the keel connecting part includes a sliding connecting part adapted to the connecting plate, a sliding limiting part adapted to the connecting protrusion, and the sliding limiting part communicates with the sliding connecting part.

[0014] Optionally, a T-shaped groove is provided on the abutting part, and a rubber strip is installed in the T-shaped groove.

[0015] Optionally, the panel mounting part includes a panel mounting plate and mounting grooves arranged on the panel mounting plate. Both ends of the panel mounting plate are respectively connected to the keel connecting part and the gypsum board mounting part.

[0016] Optionally, the gypsum board mounting part includes a gypsum board limiting plate connected to the panel mounting plate and an insertion plate vertically arranged on the gypsum board limiting plate.

[0017] Optionally, slots adapted to the insertion plates are provided at both ends of the horizontally arranged keel, and kidney-shaped avoidance holes are also provided on the horizontally arranged keel.

[0018] Optionally, the ceiling keel is arranged in a U shape; the adjusting floor structure includes a U-shaped floor seat, multiple floor gaskets installed in the U-shaped floor seat, an adjusting screw penetrating through the floor gaskets, an adjusting sleeve movably installed on the adjusting screw, and an adjusting plate installed on the top of the adjusting sleeve.

[0019] Compared with the prior art, the utility model provides a modular assembled keel, which has the following beneficial effects:

[0020] The modular assembled keel can form an assembled keel structure by splicing the horizontal keel and the vertical keel together in the keel production factory through the setting of the assembled keel structure and the connecting profile. At the decoration site, it is only necessary to connect the assembled keel structure through the connecting profile without the use of tools, so that the keel partition wall can be quickly assembled, thereby improving construction efficiency.

[0021] It should be noted that by adjusting the setting of the anchor structure, the keel structure can be assembled to adjust the height. Even if there is a deviation in the keel height during measurement, it can be adjusted by adjusting the anchor structure without the need for reprocessing, thereby reducing the generation of construction waste, improving construction efficiency, and ensuring that the keel partition wall can partition the space. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0023] Figure 2 It is a schematic diagram of the assembled keel structure of the utility model.

[0024] Figure 3 It is a structural schematic diagram of the utility model in which two vertical keels are connected by connecting profiles.

[0025] Figure 4 It is a structural schematic diagram of the utility model connecting profiles and rubber strips.

[0026] Figure 5 It is a structural schematic diagram of the utility model for assembling a keel structure, a gypsum board and a decorative panel.

[0027] Figure 6 It is a structural schematic diagram of the back side of the decorative panel of the utility model.

[0028] Figure 7 It is a structural schematic diagram of the horizontal keel of the utility model.

[0029] Figure 8 It is a structural schematic diagram of the keel of the utility model.

[0030] Fig. 9 It is a schematic diagram of the adjustable foot structure of the utility model.

[0031] Fig.10 It is a side view of the adjustable foot structure of the utility model.

[0032] Fig.11It is a schematic diagram of another embodiment in which two vertical keels of the present utility model are connected by a connecting profile.

[0033] Identifications in the figure: 1, assembled keel structure; 2, connecting profile; 21, connecting base plate; 22, connecting plate; 23, connecting protrusion; 24, abutting portion; 241, T-shaped groove; 242, rubber strip; 3, ceiling keel; 4, adjusting floor structure; 41, C-shaped floor seat; 42, floor gasket; 43, adjusting screw; 44, adjusting sleeve; 45, adjusting plate; 47, limiting member; 5, gypsum board; 6, decorative panel; 7, vertical keel; 71, keel base plate; 711, installation groove; 72, keel connecting portion; 721, sliding connecting portion; 722, sliding limiting portion; 73, panel installation portion; 731, panel installation plate; 732, installation groove; 74, gypsum board installation portion; 741, gypsum board limiting plate; 742, insertion plate; 8, horizontal keel; 81, slot; 82, waist-shaped avoidance hole. Detailed implementation mode

[0034] The following will be described in detail in conjunction with the drawings and specific implementations. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0035] A modular assembled keel of the present application can be applied to occasions such as the assembly of keel partitions, and of course can also be used in other similar application scenarios. A modular assembled keel will be described in detail below.

[0036] Refer to the attached Figure 1 — Fig.10 As shown, it shows a structural schematic diagram of a preferred embodiment of a modular assembled keel of the present application. The modular assembled keel includes an assembled keel structure 1, a connecting profile 2 slidably installed on two adjacent assembled keel structures 1, a ceiling keel 3 installed on the top of the assembled keel structure 1, and an adjusting floor structure 4 installed at the bottom of the assembled keel structure 1; wherein, a gypsum board 5 and a plurality of decorative panels 6 are installed on each assembled keel structure 1, and the decorative panels 6 are distributed along the height direction of the assembled keel structure 1.

[0037] Through the provision of the assembled keel structure 1, the vertical keels 7 and the horizontal keels 8 are modularly arranged. In combination with the provision of the connecting profiles 2, the assembled keel structures 1 are interconnected without the need for tools, thus facilitating workers to connect the assembled keel structures 1 to form a keel partition wall, improving the assembly efficiency and further enhancing the construction efficiency. Through the provision of the ceiling keel 3, it is used to limit the position of the assembled keel structure 1 and the position of the partition wall, and is used to limit the connecting profile 2 to prevent the connecting profile 2 from separating from the assembled keel structure 1. It should be particularly noted that the ceiling keel 3 is arranged in a U shape. Through the provision of the adjustable floor structure 4, it can be used to adjust the height of the assembled keel structure 1 to ensure that the assembled keel structure 1 can contact the ceiling keel 3 and be limited by the ceiling keel 3, ensuring that the keel partition wall can be assembled.

[0038] Refer to the appendix Figure 1 and Figure 2 As shown, in the present utility model, the assembled keel structure 1 includes two symmetrically arranged vertical keels 7 and multiple horizontal keels 8 installed on the vertical keels 7. The ceiling keel 3 is installed on the top of the vertical keels 7, and the adjustable floor structure 4 is installed on the top of the vertical keels 7.

[0039] Through the provision of the vertical keels 7, the present utility model provides vertical support for the keel partition wall and provides installation positions for the gypsum board 5 and the decorative panel 6. Through the provision of the horizontal keels 8, it is used to connect and limit the two vertical keels 7 and to provide support for the rock wool or glass wool filled in the keel partition wall, enabling sound insulation and heat insulation between the two sides of the keel partition wall. In combination with the provision of the gypsum board 5, it can limit the rock wool or glass wool to ensure that the keel partition wall can achieve sound insulation.

[0040] Refer to the appendix Figure 3 As shown, the orthographic projection of the vertical keel 7 on a plane perpendicular to the height direction of the vertical keel 7 is an axisymmetric figure. Among them, the vertical keel 7 includes a keel base plate 71, keel connecting parts 72 installed on both sides of the keel base plate 71, panel installation parts 73 provided on the keel connecting parts 72, gypsum board installation parts 74 provided on the panel installation parts 73. The keel connecting parts 72 are connected to the connecting profile 2, and the gypsum board installation parts 74 are connected to the horizontal keel 8.

[0041] The utility model makes the vertical keels 7 symmetrically arranged, so that the installation of the gypsum boards 5 and the decorative panels 6 can be carried out at both ends of the vertical keels 7; through the arrangement of the keel connecting part 72 for connecting the installation of the profile 2, the connecting profile 2 can connect two assembled keel structures 1, and can connect two adjacent and oppositely arranged vertical keels 7; through the arrangement of the panel installation part 73 for the installation of the decorative panel 6, the decorative panel 6 can be detachably installed without using tools, thus facilitating the installation of the decorative panel 6, improving the installation efficiency of the decorative panel 6, and further improving the construction efficiency; through the arrangement of the gypsum board installation part 74 for the installation of the gypsum board 5, the gypsum board 5 can limit the rock wool or glass wool, ensuring the sound insulation effect of the keel partition wall. At the same time, it provides an installation position for the horizontal keel 8, facilitating the horizontal keel 8 to connect and limit the vertical keels 7 at both ends thereof, ensuring that the assembled keel structure 1 can be assembled and formed.

[0042] It should be particularly noted that the keel base plate 71, the keel connecting part 72, the panel installation part 73 and the gypsum board installation part 74 are of an integral structure; the keel base plate 71 is arranged in a U shape, and the width of the keel base plate 71 is smaller than the distance between the two panel installation parts 73 on the keel base plate 71, which is used for the profile 2 and provides an installation space for the profile 2 to avoid interference between the profile 2 and the decorative panel 6; an installation groove 711 is provided at the middle position of the keel base plate 71, and a buffer strip can be installed in the installation groove 711 to prevent noise generated by the collision between two adjacent vertical keels 7.

[0043] Refer to the appendix Figure 3 and Figure 4 As shown in the figure, in the utility model, the connecting profile 2 includes a connecting base plate 21, connecting plates 22 arranged at both ends of the connecting base plate 21, connecting protrusions 23 arranged on the connecting plates 22 corresponding to the keel connecting part 72, and an abutting part 24 arranged at the middle position of the connecting base plate 21 and in contact with the keel base plate 71; the plane of the connecting base plate 21 is flush with the panel installation part 73.

[0044] The utility model provides an installation basis for the connecting plates 22 through the arrangement of the connecting base plate 21; provides an installation condition for the connecting protrusions 23 through the arrangement of the connecting plates 22; through the arrangement of the connecting protrusions 23, it is used to connect and limit the connecting profile 2 with the vertical keel 7, so that two adjacent and oppositely arranged vertical keels or adjacent assembled keel structures 1 can be connected, and the connecting profile 2 can only move along the height direction of the vertical keel 7, ensuring that the connecting profile 2 can connect two assembled keel structures 1.

[0045] Refer to the appendix Figure 3 — Figure 6As shown, in the utility model, the keel connection part 72 includes a sliding connection part 721 adapted to the connecting plate 22, and a sliding limiting part 722 adapted to the connecting protrusion 23, and the sliding limiting part 722 is connected to the sliding connection part 721; a T-shaped slot 241 is provided on the abutting part 24, and a rubber strip 242 is installed in the T-shaped slot 241.

[0046] The utility model is adapted to the connection plate 22 through the setting of the sliding connection portion 721, which is used to avoid the connection plate 22, ensuring that the connection plate 22 can move in the sliding connection portion 721, so that the connection protrusion 23 can cooperate with the sliding limit portion 722 to limit the connection profile 2; the setting of the sliding limit portion 722 provides a connection limit for the connection protrusion 23; it should be particularly noted that the maximum distance between the groove walls of the sliding limit portion 722 is greater than the maximum distance between the groove walls of the sliding connection portion 721, thereby ensuring that the connection protrusion 23 cannot slide out of the sliding connection portion 721, ensuring that the connection profile 2 can only move along the height direction of the vertical keel 7, and ensuring that the connection profile 2 can assemble the keel structure 1 for connection; the utility model is used for abutting and limiting adjacent assembled keel structures 1 through the setting of the abutment portion 24, ensuring that the two adjacent assembled keel structures 1 are in a unified plane when connected, thereby ensuring the flatness of the subsequent gypsum board 5 and the decorative panel 6 during installation, improving the flatness and aesthetics of the keel partition wall, and improving product quality; the setting of the T-slot 241 is used to provide an installation position for the rubber strip 242; the setting of the rubber strip 242 is used to protect the decorative panel 6, preventing the decorative panel 6 from directly contacting the vertical keel 7 and the horizontal keel 8 and colliding, thereby protecting the decorative panel 6, and the decorative panel 6 can be limited to prevent the decorative panel 6 from shaking left and right after installation.

[0047] See attached Figure 3 — Figure 6 As shown, in the present invention, the panel mounting portion 73 includes a panel mounting plate 731, a mounting groove 732 arranged on the panel mounting plate 731, and two ends of the panel mounting plate 731 are respectively connected to the keel connecting portion 72 and the gypsum board mounting portion 74.

[0048] The utility model facilitates the installation of the decorative panel 6 by setting the panel installation plate 731 and cooperating with the installation groove 732. It is only necessary to simply hang the decorative panel 6, and the operation is simple and convenient. Specifically, a hanging connector is installed on the back of the decorative panel 6, and a clamping groove corresponding to the installation groove 732 is provided on the hanging connector. When the decorative panel 6 is installed, it is only necessary to align the hanging connector with the installation groove 732 and insert it, so that the clamping groove is clamped on the groove wall of the installation groove 732 to complete the hanging of the decorative panel 6. It should be particularly noted that the hanging connector is L-shaped or T-shaped.

[0049] Refer to the attached Figure 3 and Figure 7 As shown, in the present utility model, the gypsum board installation part 74 includes a gypsum board limiting plate 741 connected to the panel installation plate 731, and an insertion plate 742 vertically arranged on the gypsum board limiting plate 741; slots 81 adapted to the insertion plate 742 are provided at both ends of the horizontal keel 8, and a waist-shaped avoidance hole 82 is further provided on the horizontal keel 8.

[0050] In the present utility model, through the setting of the gypsum board limiting plate 741, it is used to limit the two ends of the gypsum board 5 and limit the installation position of the gypsum board 5; through the setting of the insertion plate 742, the installation depth of the gypsum board 5 is limited; through the setting of the slots 81, in cooperation with the insertion plate 742, both ends of the horizontal keel 8 can be connected to the vertical keel 7, and with the cooperation of bolts, the horizontal keel 8 and the vertical keel 7 can be connected; through the setting of the waist-shaped avoidance hole 82, it is used to avoid internal lines or reinforcing bars, etc.

[0051] Refer to the attached Figure 1 、 Fig. 9 and Fig.10 As shown, in the present utility model, the adjustable floor structure 4 includes a U-shaped floor base 41, a plurality of floor gaskets 42 installed in the U-shaped floor base 41, an adjustment screw 43 passing through the floor gaskets 42, an adjustment sleeve 44 movably installed on the adjustment screw 43, and an adjustment plate 45 installed on the top of the adjustment sleeve 44.

[0052] The utility model is provided with a U-shaped floor base 41 for supporting the floor gasket 42 to prevent the floor gasket 42 from directly supporting on the ground and damaging the wooden floor or ceramic tiles; through the setting of the floor gasket 42, the position of the adjusting screw 43 is limited. It should be particularly noted that the adjusting screw 43 is movably connected to the floor gasket 42, and the adjusting screw 43 only penetrates through the floor gasket 42 without being fixedly connected to the floor gasket 42; through the setting of the adjusting screw 43, in cooperation with the adjusting sleeve 44, the adjusting plate 45 can be adjusted up and down. It should be particularly noted that an internal hexagonal hole is provided at the middle position of the adjusting screw 43 to facilitate the fixation of the adjusting screw 43 and prevent the adjusting screw 43 from rotating when the adjusting sleeve 44 is adjusted; it should be particularly noted that an avoidance portion is provided on the floor gasket 42 for avoiding the adjusting screw 43 to prevent the adjusting screw 43 from completely penetrating through the floor gasket 42. A limiting member 47 for limiting the adjusting plate 45 is installed at the top of the adjusting sleeve 44, and the limiting member 47 is used to limit the adjusting plate 45 to ensure that the adjusting plate 45 is located at the top of the adjusting sleeve 44. It should be particularly noted that the adjustment height range of the adjustable floor structure 4 for the assembled keel structure 1 is generally between 40 mm and 100 mm, that is, the minimum height adjustment value that the adjustable floor structure can perform on the assembled keel structure 1 is 40 mm, and the maximum value is 100 mm. This range is the adjustment range when the materials of the adjusting screw 43 and the adjusting sleeve 44 are ordinary carbon steel. According to requirements, the materials of the screw 45 and the adjusting sleeve 44 can be adjusted to other high-quality materials, such as medium carbon steel, alloy, stainless steel, etc., so as to adaptively expand this adjustment range.

[0053] Refer to the appendix Figure 1 — Fig.10 As shown, the usage process of the utility model is described as follows:

[0054] First, before the construction site, the assembled keel structure 1 can be assembled first; specifically, multiple horizontal keels 8 are connected between two vertical keels 7 by bolts to form the assembled keel structure 1; then the assembled keel structure 1 is transported to the construction site, and multiple assembled keel structures 1 are connected through the connecting profiles 2. Then, rock wool or glass wool is filled between the horizontal keels 8, and then the gypsum board 5 is installed. The rock wool or glass wool is limited by the gypsum board 5, and finally the decorative panel 6 is hung.

[0055] Refer to the appendix Fig.11 , it should be particularly noted that in this application, when the connecting plate 22 is connected to the sliding connection portion 721 by interference fit or glue, etc., the connecting plate 22 may not need to be provided with the connecting protrusion 23, and the keel connecting portion 72 does not need to be provided with the sliding limiting portion 722, thereby facilitating processing and reducing production costs.

[0056] The above embodiments are intended to illustrate the present application, not to limit the present application. Any solution that is a simple transformation of the present application falls within the protection scope of the present application.

Claims

1. A modular assembled keel, characterized in that: It includes an assembled keel structure (1), a connecting profile (2) slidably installed on two adjacent assembled keel structures (1), a ceiling keel (3) installed on the top of the assembled keel structure (1), and an adjustable floor structure (4) installed at the bottom of the assembled keel structure (1); On each assembled keel structure (1), a gypsum board (5) and multiple decorative panels (6) are installed, and the decorative panels (6) are distributed along the height direction of the assembled keel structure (1).

2. The modular assembled keel according to claim 1, characterized in that: The assembled keel structure (1) includes two vertically arranged keels (7) symmetrically arranged, and multiple horizontal keels (8) installed on the vertical keels (7); the ceiling keel (3) is installed on the top of the vertical keel (7), and the adjustable floor structure (4) is installed at the bottom of the vertical keel (7); The connecting profile (2) is installed on two adjacent and contacting vertical keels (7) for connecting two adjacent and contacting vertical keels (7).

3. The modular assembled keel according to claim 2, characterized in that: The positive projection of the vertical keel (7) on a plane perpendicular to the height direction of the vertical keel (7) is an axisymmetric figure.

4. The modular assembled keel according to claim 2, characterized in that: The vertical keel (7) includes a keel base plate (71), keel connecting parts (72) installed on both sides of the keel base plate (71), panel mounting parts (73) arranged on the keel connecting parts (72), and gypsum board mounting parts (74) arranged on the panel mounting parts (73). The keel connecting parts (72) are connected to the connecting profile (2), and the gypsum board mounting parts (74) are connected to the horizontal keel (8).

5. The modular assembled keel according to claim 4, characterized in that: The keel base plate (71), keel connecting parts (72), panel mounting parts (73), and gypsum board mounting parts (74) are of an integral structure; The keel base plate (71) is arranged in a U shape.

6. The modular assembled keel according to claim 4, characterized in that: The connecting profile (2) includes a connecting base plate (21), connecting plates (22) arranged at both ends of the connecting base plate (21), connecting protrusions (23) arranged on the connecting plates (22) corresponding to the keel connecting parts (72), and an abutting part (24) arranged at the middle position of the connecting base plate (21) and contacting the keel base plate (71); the plane of the connecting base plate (21) is flush with the panel mounting part (73).

7. The modular assembled keel according to claim 6, characterized in that: The keel connecting part (72) includes a sliding connecting part (721) adapted to the connecting plate (22), and a sliding limiting part (722) adapted to the connecting protrusion (23), and the sliding limiting part (722) communicates with the sliding connecting part (721); A T-shaped groove (241) is provided on the abutting part (24), and a rubber strip (242) is installed in the T-shaped groove (241).

8. The modular assembled keel according to claim 6, characterized in that: The panel mounting part (73) includes a panel mounting plate (731), and mounting grooves (732) arranged on the panel mounting plate (731). Both ends of the panel mounting plate (731) are respectively connected to the keel connecting part (72) and the gypsum board mounting part (74).

9. The modular assembled keel according to claim 4, characterized in that: The gypsum board mounting part (74) includes a gypsum board limiting plate (741) connected to the panel mounting plate (731), and an inserting plate (742) vertically arranged on the gypsum board limiting plate (741); Both ends of the horizontal keel (8) are provided with slots (81) adapted to the insertion plate (742), and the horizontal keel (8) is further provided with waist-shaped avoidance holes (82).

10. The modular assembled keel according to claim 1, characterized in that: The ceiling keel (3) is arranged in a U shape; The adjustable floor structure (4) includes a U-shaped floor seat (41), a plurality of floor gaskets (42) installed in the U-shaped floor seat (41), an adjustment screw rod (43) passing through the floor gaskets (42), an adjustment sleeve (44) movably installed on the adjustment screw rod (43), and an adjustment plate (45) installed on the top of the adjustment sleeve (44).

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