A detachable reversible plow soil loosening device

Abstract

This utility model discloses a detachable reversible plow soil loosening device, including a mounting base, a connecting seat fixedly connected to the mounting base, and a first groove formed in the connecting seat; it also includes a first drive assembly mounted on the connecting seat, a first connecting assembly mounted on the mounting base, a reversible connecting assembly mounted on the output end of the first drive assembly, a second connecting assembly mounted on the reversible connecting assembly, an extension assembly mounted on the second connecting assembly, and a displacement assembly mounted on the mounting base. This utility model, by activating a third hydraulic cylinder, causes its output end to drive the first connecting rod to move along a predetermined trajectory. The first connecting rod then drives the second connecting arm to move, with one end of the second connecting arm sliding in the connecting groove on the first connecting rod and the other end sliding on the second connecting rod, thereby driving the plow blade assembly mounted on the second connecting rod to move closer to or away from the first connecting rod to adapt to different soil loosening needs.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, specifically to a detachable reversible plow soil loosening device. Background Technology

[0002] A reversible plow is a type of tillage machinery that is paired with a tractor. It uses a hydraulic system to control the plow body to rotate 180 degrees, allowing the left and right plow bodies to work alternately during the round trip. It can efficiently complete deep tillage, soil breaking and surface leveling. It features high bidirectional tillage efficiency, adjustable tillage depth and strong adaptability, and is suitable for large-scale farmland and complex terrain operations.

[0003] While existing reversible plows can achieve reversible operation, the plow blades are fixed to the connecting arm, and the angle can only be adjusted, but key parameters such as the contact position with the soil and the tillage depth cannot be changed. It is difficult to optimize the working state according to the actual working conditions, resulting in limited tillage effect. Although equipped with displacement components, they often fail because they cannot effectively conform to complex ground (such as uneven terrain with large differences in softness and hardness), making it difficult to meet diverse tillage needs and ultimately affecting the quality and efficiency of operation. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a detachable reversible plow soil loosening device, which drives the first connecting rod and the second connecting arm through the third oil cylinder, so that the position of the plow blade assembly can be adjusted to adapt to different soil loosening needs, thus solving the problem that the position of the plow blade of the existing reversible plow is fixed and inconvenient to adjust.

[0005] The objective of this utility model is achieved through the following technical solution: A detachable reversible plow for loosening soil includes a mounting base, a connecting seat fixedly connected to the mounting base, and a first groove formed on the connecting seat; it also includes a first drive assembly mounted on the connecting seat, a first connecting assembly mounted on the mounting base, a reversible connecting assembly mounted on the output end of the first drive assembly, a second connecting assembly mounted on the reversible connecting assembly, an extension assembly mounted on the second connecting assembly, and a displacement assembly mounted on the mounting base. In the connected state, the first connecting assembly is used to drive the overall angle adjustment of the device, the second connecting assembly serves as a connector to connect the extension assembly and the reversible connecting assembly, the first drive assembly is used to drive the reversible connecting assembly to rotate, and the second connecting assembly is driven to rotate synchronously when the reversible connecting assembly rotates. The extension assembly includes a second connecting frame mounted behind the mounting base, a first fixing plate mounted on the second connecting frame, a third hydraulic cylinder mounted on the second connecting frame, a first connecting rod mounted on the output end of the third hydraulic cylinder, a second fixing plate mounted on the second connecting frame, a second connecting rod slidably connected to the second connecting frame, a second connecting arm rotatably connected to the second fixing plate, and a connecting groove formed on the first connecting rod. One end of the second connecting arm is slidably connected to the connecting groove on the first connecting rod, and the other end of the second connecting arm is slidably connected to the second connecting rod. A plow assembly is mounted on the second connecting rod. When the third hydraulic cylinder drives the first connecting rod to move along a predetermined trajectory, the plow assembly mounted on the second connecting rod moves closer to or further away from the first connecting rod.

[0006] In one optional embodiment, the first drive assembly includes a first hydraulic cylinder rotatably connected to a connecting seat and a fixed seat mounted on the output end of the first hydraulic cylinder.

[0007] In one optional embodiment, the flip connection assembly includes a rotating sleeve mounted on a mounting base, a connecting post rotatably connected to the rotating sleeve, and a pin disposed on the connecting post. The fixed base and the connecting post are fixedly connected, and the first hydraulic cylinder is used to drive the connecting post to rotate on the rotating sleeve.

[0008] In one optional embodiment, the first connecting assembly includes a first connecting arm rotatably connected to the mounting base, a second mounting bracket rotatably connected to the first connecting arm, a first mounting bracket mounted on the second mounting bracket, a second hydraulic cylinder mounted on the first mounting bracket, and the output end of the second hydraulic cylinder being mounted at a first groove on the connecting base. When the device is in the connected state, the second hydraulic cylinder is used to drive the mounting base to rotate along the second mounting bracket.

[0009] In one alternative embodiment, the second connecting assembly includes a pin mounted in the connecting post via a pin and a first connecting bracket mounted on the pin, the first connecting bracket and the second connecting bracket being fixedly connected.

[0010] In one alternative embodiment, the displacement assembly includes two first studs slidably connected to a mounting base, a first nut threaded onto the first studs, a bearing housing mounted on the first studs, a roller rotatably mounted on the bearing housing, and a spring mounted between the bearing housing and the mounting base.

[0011] In one alternative embodiment, the displacement assembly further includes a connecting plate mounted on the bearing housing and a ligature installed between the two connecting plates.

[0012] In one optional embodiment, the plow blade assembly includes a sliding mounting bracket mounted on a second connecting rod, a plurality of sliding rods mounted on the second connecting bracket, a third mounting bracket mounted on the sliding mounting bracket, two plow blades mounted on the third mounting bracket, a fixing strip mounted on the plow blades, a threaded sleeve rotatably connected to the third mounting bracket, a second stud threadedly mounted on the threaded sleeve, and a second nut threadedly mounted on the second stud, wherein the second stud and the fixing strip are interconnected.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By activating the third hydraulic cylinder, its output end drives the first connecting rod to move along a predetermined trajectory. The first connecting rod drives the second connecting arm to move. One end of the second connecting arm slides in the connecting groove on the first connecting rod, and the other end slides on the second connecting rod, thereby driving the plow blade assembly installed on the second connecting rod to move closer to or away from the first connecting rod to adapt to different soil loosening needs.

[0014] 2. Two first studs are slidably connected to the mounting base and can be adjusted in position. The first nut is threaded onto it to fix the position. The first stud is equipped with a bearing seat with a rotating roller to assist movement and reduce resistance. There is a spring 402 between the bearing seat and the mounting base to buffer the impact of the ground or unevenness, which can absorb and release energy and maintain effective contact. In addition, there is a connecting plate on the bearing seat and a rib between the two connecting plates to enhance the stability of movement, prevent shaking, and better adapt to different ground surfaces.

[0015] 3. The sliding mounting bracket can slide along multiple sliding rods set on the second connecting bracket. At the same time, the two plow blades equipped on the third mounting bracket are responsible for loosening the soil. When it is necessary to adjust the angle of the plow blades, rotate the screw sleeve. Since the second stud is connected to the fixing strip, the angle of the plow blades can be adjusted through this operation. After the angle is adjusted to the appropriate position, the position of the second stud is fixed by using the second nut. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a detachable, reversible plow for loosening soil; Figure 2 A three-dimensional structural diagram of the displacement component of a detachable reversible plow soil loosening device; Figure 3 A three-dimensional structural diagram of the first connecting component of a detachable reversible plow soil loosening device; Figure 4 A three-dimensional structural diagram of the second connecting component of a detachable reversible plow soil loosening device; Figure 5 A three-dimensional structural diagram of an extension component and a second connecting component of a detachable reversible plow soil loosening device; Figure 6A detachable reversible plow for loosening soil Figure 1 A magnified three-dimensional structural diagram of point A.

[0017] In the diagram: 1. Mounting base; 101. Connecting seat; 102. First groove; 2. First hydraulic cylinder; 201. Rotating sleeve; 202. Connecting column; 203. Fixed seat; 204. Pin; 3. Second hydraulic cylinder; 301. First mounting bracket; 302. Second mounting bracket; 303. First connecting arm; 4. First stud; 401. First nut; 402. Spring; 403. Bearing seat; 404. Roller; 405. Connecting plate; 406. Ribbon; 5. Insert post; 501. First connecting frame; 502. Second connecting frame; 503. First fixing plate; 504. Second fixing plate; 6. Third hydraulic cylinder; 601. First connecting rod; 602. Connecting groove; 603. Second connecting arm; 604. Second connecting rod; 605. Sliding mounting bracket; 606. Sliding rod; 7. Third mounting bracket; 701. Plow blade; 702. Fixing strip; 703. Screw sleeve; 704. Second stud; 705. Second nut. Detailed Implementation

[0018] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are all commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0019] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0020] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, the internal connection of two elements, or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0021] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0022] Please refer to Figures 1-6 This utility model provides an embodiment: a detachable reversible plow soil loosening device, including a mounting base 1, a connecting seat 101 fixedly connected to the mounting base 1, and a first groove 102 opened on the connecting seat 101; it also includes a first drive assembly mounted on the connecting seat 101, a first connecting assembly mounted on the mounting base 1, a reversible connecting assembly mounted on the output end of the first drive assembly, a second connecting assembly mounted on the reversible connecting assembly, an extension assembly mounted on the second connecting assembly, and a displacement assembly mounted on the mounting base 1. In the connected state of the device, the first connecting assembly is used to drive the overall angle adjustment of the device, the second connecting assembly is used as a connector to connect the extension assembly and the reversible connecting assembly, the first drive assembly is used to drive the reversible connecting assembly to rotate, and when the reversible connecting assembly rotates, it drives the second connecting assembly to rotate synchronously. The extension assembly includes a second connecting frame 502 mounted behind the mounting base 1, a first fixing plate 503 mounted on the second connecting frame 502, a third hydraulic cylinder 6 mounted on the second connecting frame 502, a first connecting rod 601 mounted on the output end of the third hydraulic cylinder 6, a second fixing plate 504 mounted on the second connecting frame 502, a second connecting rod 604 slidably connected to the second connecting frame 502, a second connecting arm 603 rotatably connected to the second fixing plate 504, and a connecting groove 602 opened on the first connecting rod 601. One end of the second connecting arm 603 is slidably connected to the connecting groove 602 on the first connecting rod 601, and the other end of the second connecting arm 603 is slidably connected to the second connecting rod 604. A plow assembly is mounted on the second connecting rod 604. When the third hydraulic cylinder 6 drives the first connecting rod 601 to move along a predetermined trajectory, the plow assembly mounted on the second connecting rod 604 moves closer to or further away from the first connecting rod 601.

[0023] In a preferred embodiment of this utility model, the first drive assembly installed on the connecting seat 101 is turned on. The first drive assembly drives the flip connecting assembly on its output end to rotate, which in turn drives the second connecting assembly to rotate synchronously. The plow assembly rotates synchronously with the second connecting assembly. At the same time, through the sliding of the first connecting rod 601 on the extension assembly, the second connecting rod 604 is driven to move synchronously, so that the position of the plow assembly can be adjusted.

[0024] In a preferred embodiment of this utility model, the first driving assembly includes a first hydraulic cylinder 2 rotatably connected to the connecting seat 101 and a fixed seat 203 mounted on the output end of the first hydraulic cylinder 2. The flipping connection assembly includes a rotating sleeve 201 mounted on the mounting base 1, a connecting column 202 rotatably connected to the rotating sleeve 201, and a pin 204 disposed on the connecting column 202. The fixed seat 203 and the connecting column 202 are fixedly connected. The first hydraulic cylinder 2 is used to drive the connecting column 202 to rotate on the rotating sleeve 201. By opening the first hydraulic cylinder 2, the telescopic rod of the first hydraulic cylinder 2 can drive the connecting column 202 on the fixed seat 203 to rotate around the rotating sleeve 201.

[0025] In a preferred embodiment of this utility model, the first connecting assembly includes a first connecting arm 303 rotatably connected to the mounting base 1, a second mounting bracket 302 rotatably connected to the first connecting arm 303, a first mounting bracket 301 mounted on the second mounting bracket 302, a second hydraulic cylinder 3 mounted on the first mounting bracket 301, and the output end of the second hydraulic cylinder 3 is mounted at the first groove 102 on the connecting seat 101. When the device is in the connected state, the second hydraulic cylinder 3 is used to drive the mounting base 1 to rotate along the second mounting bracket 302. When the power transport component is connected to the second mounting bracket 302, by opening the second hydraulic cylinder 3, the output shaft of the second hydraulic cylinder 3 pulls or releases the connecting seat 101, causing the first connecting arm 303 to rotate around the second mounting bracket 302.

[0026] In a preferred embodiment of this utility model, the second connecting component includes a pin 5 installed in the connecting post 202 via a pin 204 and a first connecting bracket 501 installed on the pin 5. The first connecting bracket 501 and the second connecting bracket 502 are fixedly connected. After the pin 5 is inserted into the connecting post 202, the connecting post 202 and the pin 5 are fixedly connected via the pin 204.

[0027] In a preferred embodiment of this utility model, the displacement assembly includes two first studs 4 slidably connected to the mounting base 1, a first nut 401 threaded onto the first studs 4, a bearing seat 403 mounted on the first studs 4, a roller 404 rotatably mounted on the bearing seat 403, and a spring 402 mounted between the bearing seat 403 and the mounting base 1. The displacement assembly also includes a connecting plate 405 mounted on the bearing seat 403 and a clevis 406 mounted between the two connecting plates 405. The roller 404 on the bearing seat 403 rotates to assist the movement of the device, and the spring 402 acts as a buffer between the bearing seat 403 and the mounting base 1. At the same time, the connecting plate 405 and the clevis 406 further enhance the stability of the device's movement.

[0028] In a preferred embodiment of this utility model, the plow blade assembly includes a sliding mounting bracket 605 mounted on the second connecting rod 604, multiple sliding rods 606 mounted on the second connecting bracket 502, a third mounting bracket 7 mounted on the sliding mounting bracket 605, two plow blades 701 mounted on the third mounting bracket 7, a fixing strip 702 mounted on the plow blades 701, a threaded sleeve 703 rotatably connected to the third mounting bracket 7, a second stud 704 threadedly mounted on the threaded sleeve 703, and a second nut 705 threadedly mounted on the second stud 704. The second stud 704 and the fixing strip 702 are interconnected. Since the second stud 704 and the fixing strip 702 are interconnected, the angle of the plow blades 701 can be adjusted. After adjustment, the position of the second stud 704 is fixed by the second nut 705.

[0029] The first drive assembly includes a first hydraulic cylinder 2 and a fixed base 203. In actual use, the first drive assembly can be installed on the connecting column 202 located at the rotating sleeve 201, and the first hydraulic cylinder 2 can be replaced with a universal coupling. The tractor is equipped with a power rotation output end, which is part of the tractor's power system. It is usually located at the rear or side of the tractor, or in a position that is convenient for connecting external equipment. It can output rotational power at a specific speed and torque, providing the power source required for the connected device to work. The universal coupling needs to be connected to the power rotation output end to drive the tilting connection assembly to rotate and adjust. The tractor's power rotation output end can output rotational power at a specific speed and torque. By connecting the universal coupling to it, the appropriate power can be accurately transmitted according to the actual working requirements of the tilting connection assembly.

[0030] Working Principle: First, the device is rigidly connected to the tractor to ensure a relatively stable relative position during operation, providing a stable mechanical foundation for subsequent hydraulic power transmission. Then, the device's cylinders are connected to the tractor's cylinder system. The tractor's cylinder system serves as the power source, and through specific hydraulic lines, it is reliably connected to the device's cylinders, establishing a complete hydraulic circuit. After connection, the hydraulic system is activated, allowing high-pressure hydraulic oil to flow from the tractor's cylinder system into the device's cylinders, activating the first cylinder 2. Its extension rod drives the connecting post 202 on the fixed base 203 to rotate around the rotating sleeve 201. The connecting post 202 is fixedly connected to the insert post 5 via a pin 204. The first connecting bracket 501 on the insert post 5 drives the second connecting bracket 5. 02. Movement: When the power transport component is connected to the second mounting frame 302, the second hydraulic cylinder 3 is activated. Its output shaft pulls or releases the first groove 102 on the connecting seat 101, causing the first connecting arm 303 to rotate around the second mounting frame 302, thereby causing the mounting base 1 to rotate along the second mounting frame 302. After the device is adjusted to a suitable position, the third hydraulic cylinder 6 is activated. Its output end drives the first connecting rod 601 to move along a predetermined trajectory. The first connecting rod 601 drives the second connecting arm 603 to move. One end of the second connecting arm 603 slides in the connecting groove 602 on the first connecting rod 601, and the other end slides on the second connecting rod 604, thereby driving the plow blade assembly installed on the second connecting rod 604 to move closer to or away from the first connecting rod 601 to adapt to different soil loosening needs.

[0031] During the movement of the device, the two first studs 4 on the mounting base 1 slide on the mounting base 1, the first nut 401 is used to fix the position of the first studs 4, the rollers 404 on the bearing seat 403 rotate to assist the movement of the device, the spring 402 acts as a buffer between the bearing seat 403 and the mounting base 1, and the connecting plate 405 and the cleaver 406 further enhance the stability of the device movement. When the plow blade assembly is working, the sliding mounting bracket 605 slides on the multiple sliding rods 606 on the second connecting bracket 502, and the two plow blades on the third mounting bracket 7... 701 performs soil loosening operations. By rotating the screw sleeve 703, the angle of the plow blade 701 can be adjusted because the second stud 704 and the fixing strip 702 are connected to each other. After adjustment, the position of the second stud 704 is fixed with the second nut 705. Compared with traditional plow blades, which are usually fixed and inconvenient to adjust, this detachable reversible plow soil loosening device can flexibly adjust the position of the plow blade assembly through the third hydraulic cylinder. The angle of the plow blade can be easily adjusted by rotating the screw sleeve. It can be adjusted at any time according to different soil conditions and tillage needs, which greatly improves the applicability of the device and tillage efficiency.

[0032] Although only certain components and embodiments of this application have been illustrated and described, many modifications and alterations will be apparent to those skilled in the art without actually departing from the scope and spirit of the claims, such as variations in the size, dimensions, structure, shape and proportion of the various elements, installation arrangement, material use, color, orientation, etc.

[0033] Finally, it should be noted that the above embodiments are only preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A detachable reversible plow soil loosening device, comprising a mounting base (1), a connecting seat (101) fixedly connected to the mounting base (1), and a first groove (102) formed on the connecting seat (101); characterized in that: It also includes a first drive assembly mounted on the connecting seat (101), a first connecting assembly mounted on the mounting base (1), a flip connecting assembly mounted on the output end of the first drive assembly, a second connecting assembly mounted on the flip connecting assembly, an extension assembly mounted on the second connecting assembly, and a displacement assembly mounted on the mounting base (1). In the connected state of the device, the first connecting assembly is used to drive the overall angle adjustment of the device, the second connecting assembly is used as a connector to connect the extension assembly and the flip connecting assembly, the first drive assembly is used to drive the flip connecting assembly to rotate, and when the flip connecting assembly rotates, it drives the second connecting assembly to rotate synchronously. The extension assembly includes a second connecting frame (502) mounted behind the mounting base (1), a first fixing plate (503) mounted on the second connecting frame (502), a third hydraulic cylinder (6) mounted on the second connecting frame (502), a first connecting rod (601) mounted on the output end of the third hydraulic cylinder (6), a second fixing plate (504) mounted on the second connecting frame (502), a second connecting rod (604) slidably connected to the second connecting frame (502), and a second connecting arm rotatably connected to the second fixing plate (504). (603) and a connecting groove (602) opened on the first connecting rod (601), one end of the second connecting arm (603) is slidably connected to the connecting groove (602) on the first connecting rod (601), and the other end of the second connecting arm (603) is slidably connected to the second connecting rod (604). A plow assembly is installed on the second connecting rod (604). When the third oil cylinder (6) drives the first connecting rod (601) to move along a predetermined trajectory, the plow assembly installed on the second connecting rod (604) moves closer to or further away from the first connecting rod (601).

2. The detachable reversible plow soil loosening device according to claim 1, characterized in that: The first drive assembly includes a first hydraulic cylinder (2) rotatably connected to a connecting seat (101) and a fixed seat (203) mounted on the output end of the first hydraulic cylinder (2).

3. The detachable reversible plow soil loosening device according to claim 1, characterized in that: The flip connection assembly includes a rotating sleeve (201) mounted on the mounting base (1), a connecting post (202) rotatably connected to the rotating sleeve (201), and a pin (204) provided on the connecting post (202). The fixed base (203) and the connecting post (202) are fixedly connected. The first oil cylinder (2) is used to drive the connecting post (202) to rotate on the rotating sleeve (201).

4. The detachable reversible plow soil loosening device according to claim 1, characterized in that: The first connecting assembly includes a first connecting arm (303) rotatably connected to the mounting base (1), a second mounting bracket (302) rotatably connected to the first connecting arm (303), a first mounting bracket (301) mounted on the second mounting bracket (302), a second hydraulic cylinder (3) mounted on the first mounting bracket (301), and the output end of the second hydraulic cylinder (3) is mounted at the first groove (102) on the connecting seat (101). When the device is in the connected state, the second hydraulic cylinder (3) is used to drive the mounting base (1) to rotate along the second mounting bracket (302).

5. A detachable reversible plow soil loosening device according to claim 3, characterized in that: The second connecting assembly includes a pin (5) installed in the connecting post (202) by a pin (204) and a first connecting bracket (501) installed on the pin (5), the first connecting bracket (501) and the second connecting bracket (502) being fixedly connected.

6. The detachable reversible plow soil loosening device according to claim 1, characterized in that: The displacement assembly includes two first studs (4) slidably connected to the mounting base (1), a first nut (401) threaded onto the first studs (4), a bearing seat (403) mounted on the first studs (4), a roller (404) rotatably mounted on the bearing seat (403), and a spring (402) mounted between the bearing seat (403) and the mounting base (1).

7. A detachable reversible plow soil loosening device according to claim 6, characterized in that: The displacement assembly also includes a connecting plate (405) mounted on the bearing housing (403) and a spur (406) mounted between the two connecting plates (405).

8. A detachable reversible plow soil loosening device according to claim 1, characterized in that: The plow blade assembly includes a sliding mounting bracket (605) mounted on a second connecting rod (604), multiple sliding rods (606) mounted on a second connecting bracket (502), a third mounting bracket (7) mounted on the sliding mounting bracket (605), two plow blades (701) mounted on the third mounting bracket (7), a fixing strip (702) mounted on the plow blades (701), a threaded sleeve (703) rotatably connected to the third mounting bracket (7), a second stud (704) threaded onto the threaded sleeve (703), and a second nut (705) threaded onto the second stud (704). The second stud (704) and the fixing strip (702) are interconnected.

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