Drawing type fishing line box suitable for different fishing line rolls

Abstract

The utility model discloses a drawing type fishing line box suitable for different fishing line rolls. The drawing type fishing line box comprises a shell, a support is arranged in the shell, four fishing line fixing mechanisms are arranged on the front portion and the rear portion of the support respectively, an upper lock catch structure is arranged on the upper portion of the support, a lower lock catch structure is arranged on the lower portion of the support, and a connecting mechanism is arranged in the center of the support. Through the compression-resistant design of the shell and the support, the opening mode that the knob drives the upper and lower lock catch structures and the fish wire fixing mechanism self-adaptive to the diameter of the inner ring of the fish wire, the storage requirements of different types of fish wires can be flexibly met, good appearance design and collection value are achieved, the fish wire can be effectively prevented from shaking, loosening or winding in the box, and the service life of the box is prolonged. The protection effect of the fishing line is improved.

Description

Technical Field

[0001] The utility model relates to the field of fishing gear equipment, and particularly relates to a pull-out fishing line box adaptable to different fishing line reels. Background Art

[0002] With the popularization of fishing sports, the types and usage amounts of fishing lines have been increasing continuously, and various styles of fishing line reels have emerged on the market. However, the sizes of different fishing line reels are not uniform, resulting in the situation that existing fishing line boxes often cannot be fully accommodated or have too much space during storage, causing the fishing lines to shake, loosen, get disordered or even get entangled. In addition, due to improper protection, the fishing line box is easily damaged by extrusion, affecting the preservation of the fishing lines.

[0003] Currently, some fishing line boxes have the following defects:

[0004] The material or structural design is not strong enough: it is easily deformed by external force extrusion or collision, affecting the protection effect on the fishing lines.

[0005] The lock buckle design is not firm: it is prone to loosening or falling off, resulting in the inability of the fishing line box to be effectively closed and the fishing lines not being protected.

[0006] The styles are single: it is difficult to meet the personalized needs of different users, especially fishing lines with different inner diameters and outer diameters are difficult to store together. Content of the Utility Model

[0007] The purpose of the utility model is to provide a pull-out fishing line box adaptable to different fishing line reels, aiming to solve the problems existing in the existing fishing line boxes in terms of the protection of fishing lines, the convenience of use and the personalized needs.

[0008] The technical solution of the present invention: A pull-out fishing line box adaptable to different fishing line reels, including a housing, a bracket is arranged inside the housing, four fixed fishing line mechanisms are respectively arranged at the front and rear parts of the bracket, an upper lock buckle structure is arranged at the upper part of the bracket, a lower lock buckle structure is arranged at the lower part of the bracket, and a connecting mechanism is arranged at the center of the bracket.

[0009] In the above-mentioned pull-out fishing line box, the fixed fishing line mechanism includes a spring housing connected to the bracket, the upper part of the spring housing is connected with an upper spring housing cover through connecting grooves around it, the upper spring housing cover is connected with a lower limit ring, a central shaft is fixed in the middle of the spring housing through a set screw, a spring outer shaft is sleeved outside the central shaft, the spring outer shaft is connected with a spring through a notch, the spring is connected with a notch inside the spring housing, the spring outer shaft is restricted by a small circular hole in the center of the lower limit ring, the upper part of the spring outer shaft is connected with a spring inner shaft, and a lower iris piece and an upper iris piece are respectively fixed at the upper and lower parts of the spring inner shaft through set screws.

[0010] In the aforementioned pull-out fishing line box, four identically structured upper and lower iris piece connecting columns are connected to the middle of the lower iris piece through the inner round holes of four raised cylinders. The upper and lower iris piece connecting columns are connected to the inner round holes of the four raised cylinders of the upper iris piece. The outer part of the upper iris piece is provided with spaced patterns, and the upper part of the upper iris piece is provided with an upper limit ring connected to the inner shaft of the coil spring through a set screw. The middle parts of the lower iris piece and the upper iris piece are respectively connected with four variable-diameter outer rings through four waist-shaped holes, and the two ends of the variable-diameter outer rings are respectively connected to the waist-shaped holes of the upper limit ring and the lower limit ring.

[0011] In the aforementioned pull-out fishing line box, an arc-shaped outer ring is provided on the outer part of the variable-diameter outer ring, and a shaft connected to the upper and lower iris pieces is connected inside. The arc-shaped outer ring and the shaft are connected through two connecting arms.

[0012] In the aforementioned pull-out fishing line box, the upper lock structure includes a lower shell of the top cover connected to the bracket. The lower shell of the top cover is connected with a knob. The two ends of the knob are connected with a first connecting rod and a second connecting rod respectively. The first connecting rod and the second connecting rod are respectively connected with a third connecting rod and a fourth connecting rod. The third connecting rod and the fourth connecting rod are connected to the limiting grooves of the lower shell of the top cover. The upper part of the lower shell of the top cover is connected with an upper shell of the top cover, and the large round hole in the center of the upper shell of the top cover is connected with the knob.

[0013] In the aforementioned pull-out fishing line box, the lower lock structure includes an upper shell of the bottom cover connected to the bracket. The upper shell of the bottom cover is connected with a lower shell of the bottom cover. The center of the lower shell of the bottom cover is connected with a lower connecting rod. The lower connecting rod is connected with a fifth connecting rod and a sixth connecting rod. The fifth connecting rod and the sixth connecting rod are connected with a seventh connecting rod and an eighth connecting rod. The seventh connecting rod and the eighth connecting rod are connected to the limiting grooves of the lower shell of the bottom cover. The small round hole in the center of the upper shell of the bottom cover is connected with the middle cylinder of the lower connecting rod.

[0014] In the aforementioned pull-out fishing line box, the connecting mechanism includes three bearings connected to the bracket. The centers of the bearings are connected with a connecting shaft. The upper part of the connecting shaft is connected to the round hole of the lower convex platform of the knob, and the lower part of the connecting shaft is connected to the round hole of the middle cylinder of the lower connecting rod. The upper and lower parts of the connecting shaft are tightened and fixed to the knob and the lower connecting rod respectively through set screws.

[0015] In the aforementioned pull-out fishing line box, there are multiple arrayed notches inside the outer shell, and the shapes of the notches match the cross-sectional shapes of the third connecting rod, the fourth connecting rod of the upper lock structure, and the seventh connecting rod, the eighth connecting rod of the lower lock structure.

[0016] In the aforementioned pull-out fishing line box, four large round holes and two vertical rib plates are respectively provided at the front and rear of the bracket, a horizontal outer ring is provided in the middle, eight convex waist-shaped pieces are respectively provided at the upper and lower parts, and each waist-shaped piece is provided with three round holes bolted to the upper lock structure and the lower lock structure. There are three cross beams with the same structure in the middle of the bracket, and a round hole connected to a bearing is provided in the middle of each cross beam.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. A bracket is provided inside the outer shell of the present invention. Four fixed fishing line mechanisms are respectively provided at the front and rear of the bracket. An upper lock structure is provided at the upper part of the bracket, a lower lock structure is provided at the lower part of the bracket, and a connection mechanism is provided at the center of the bracket. The fixed fishing line mechanism includes a spring housing connected to the bracket. The upper part of the spring housing is connected with an upper cover of the spring housing through connection grooves around. The upper cover of the spring housing is connected with a lower limit ring. A central shaft is fixed in the middle of the spring housing through a set screw. A spring outer shaft is sleeved outside the central shaft. The spring outer shaft is connected with a spring through a notch. The spring is connected with the inner notch of the spring housing. The spring outer shaft is restricted by the small round hole in the center of the lower limit ring. The upper part of the spring outer shaft is connected with a spring inner shaft. The upper and lower parts of the spring inner shaft are fixed with a lower iris piece and an upper iris piece through set screws. Four convex cylinders are provided in the middle of the lower iris piece, and four identical upper and lower iris piece connection columns are connected through the inner round holes of the convex cylinders. The upper and lower iris piece connection columns are connected with the inner round holes of the four convex cylinders of the upper iris piece. An interval pattern is provided outside the upper iris piece, and an upper limit ring connected with the spring inner shaft through a set screw is provided at the upper part of the upper iris piece. Four variable-diameter outer rings are connected through four waist-shaped holes in the middle of the lower iris piece and the upper iris piece respectively. The two ends of the variable-diameter outer ring are respectively connected with the waist-shaped holes of the upper limit ring and the lower limit ring. An arc-shaped outer ring is provided outside the variable-diameter outer ring, and a shaft connected with the upper and lower iris pieces is connected inside. The arc-shaped outer ring and the shaft are connected through two connecting arms. The fixed fishing line mechanism can adapt to the inner diameter of the fishing line automatically, can flexibly adapt to the storage requirements of different styles of fishing lines, and can prevent the fishing lines from shaking, loosening or winding in the box.

[0019] 2. The upper lock structure of the present invention includes a lower cover of the top cover connected to the bracket. The lower cover of the top cover is connected with a knob. Both ends of the knob are connected with a first connecting rod and a second connecting rod. The first connecting rod and the second connecting rod are respectively connected with a third connecting rod and a fourth connecting rod. The third connecting rod and the fourth connecting rod are connected to the limiting grooves of the lower cover of the top cover. The upper part of the lower cover of the top cover is connected with an upper cover of the top cover. The large circular hole in the center of the upper cover of the top cover is connected with the knob. The lower lock structure includes an upper cover of the bottom cover connected to the bracket. The upper cover of the bottom cover is connected with a lower cover of the bottom cover. The center of the lower cover of the bottom cover is connected with a lower connecting rod. The lower connecting rod is connected with a fifth connecting rod and a sixth connecting rod. The fifth connecting rod and the sixth connecting rod are connected with a seventh connecting rod and an eighth connecting rod. The seventh connecting rod and the eighth connecting rod are connected to the limiting grooves of the lower cover of the bottom cover. The small circular hole in the center of the upper cover of the bottom cover is connected with the middle cylinder of the lower connecting rod. The connecting mechanism includes three bearings connected to the bracket. The center of the bearings is connected with a connecting shaft. The upper part of the connecting shaft is connected with the circular hole of the boss at the lower part of the knob, and the lower part of the connecting shaft is connected with the circular hole of the middle cylinder of the lower connecting rod. The upper and lower parts of the connecting shaft are tightened and fixed to the knob and the lower connecting rod respectively by set screws. The knob drives the opening and closing of the upper and lower lock structures, which can ensure that the bracket is in a locked state under normal conditions and cannot move, and can ensure the effective closing of the fishing line box and protect the fishing line.

[0020] 3. There are multiple arrayed notches inside the outer shell of the present invention. The shapes of the notches match the cross-sectional shapes of the third connecting rod, the fourth connecting rod of the upper lock structure, and the seventh connecting rod, the eighth connecting rod of the lower lock structure. Four large circular holes and two vertical rib plates are respectively provided at the front and rear parts of the bracket, a horizontal outer ring is provided in the middle part, eight protruding waist-shaped pieces are respectively provided at the upper and lower parts, and each waist-shaped piece has three circular holes for bolt connection with the upper lock structure and the lower lock structure. There are three cross beams with the same structure in the middle part of the bracket, and each cross beam has a circular hole connected to the bearing in the middle. The outer shell and the bracket adopt a special appearance design, have good anti-extrusion ability, can effectively protect the fishing line from being deformed by external forces, and at the same time have good appearance design and collection value, and can be used as a table decoration. Brief Description of the Drawings

[0021] Figure 1 is the structural schematic diagram of the present utility model;

[0022] Figure 2 is the internal structural schematic diagram of the present utility model;

[0023] Figure 3 is the structural schematic diagram of the fishing line fixing mechanism of the present utility model;

[0024] Figure 4 is the internal structural schematic diagram of the fishing line fixing mechanism of the present utility model;

[0025] Figure 5It is a schematic cross-sectional view of the fish line fixing mechanism of the present utility model;

[0026] Figure 6 It is a schematic structural view of the upper locking structure of the present utility model;

[0027] Figure 7 It is a schematic structural view of the lower locking structure of the present utility model;

[0028] Figure 8 It is a schematic structural view of the outer shell of the present utility model;

[0029] Figure 9 It is a schematic structural view of the bracket of the present utility model.

[0030] The reference numerals in the drawings are: 1 - outer shell; 2 - bracket; 3 - fish line fixing mechanism; 4 - upper locking structure; 5 - lower locking structure; 6 - connecting mechanism; 31 - spring housing; 32 - spring housing upper cover; 33 - lower limit ring; 34 - central axis; 35 - outer spring shaft; 36 - spring; 37 - inner spring shaft; 38 - lower iris piece; 39 - upper iris piece; 310 - upper and lower iris piece connecting column; 311 - upper limit ring; 312 - variable diameter outer ring; 41 - top cover lower shell; 42 - knob; 43 - first connecting rod; 44 - second connecting rod; 45 - third connecting rod; 46 - fourth connecting rod; 47 - top cover upper shell; 51 - bottom cover upper shell; 52 - bottom cover lower shell; 53 - lower connecting rod; 54 - fifth connecting rod; 55 - sixth connecting rod; 56 - seventh connecting rod; 57 - eighth connecting rod; 61 - bearing; 62 - connecting shaft. Specific embodiments

[0031] The present utility model will be further described below with reference to the drawings and embodiments, but it shall not be used as a basis for limiting the present utility model.

[0032] Embodiment: A pull - type fish line box adaptable to different fish line reels, as shown in the attached Figure 1-2 figure, includes an outer shell 1. A bracket 2 is provided inside the outer shell 1. Four fish line fixing mechanisms 3 are provided at the front and rear parts of the bracket 2 respectively. An upper locking structure 4 is provided at the upper part of the bracket 2. A lower locking structure 5 is provided at the lower part of the bracket 2. A connecting mechanism 6 is provided at the center of the bracket 2.

[0033] As shown in the attached Figure 2 figure, the connecting mechanism 6 includes three bearings 61 connected to the bracket 2. A connecting shaft 62 is connected to the centers of the bearings 61. The upper part of the connecting shaft 62 is connected to the round hole of the convex platform at the lower part of the knob 42, and the lower part of the connecting shaft 62 is connected to the round hole of the middle cylinder of the lower connecting rod 53. The upper and lower parts of the connecting shaft 62 are tightened and fixed to the knob 42 and the lower connecting rod 53 respectively by set screws.

[0034] As shown in the attached Figures 3-5As shown in the figure, the fixed fishing line mechanism 3 includes a torsion spring housing 31 connected to the bracket 2. The upper part of the torsion spring housing 31 is connected with a torsion spring housing upper cover 32 through connecting grooves around it. The torsion spring housing upper cover 32 is connected with a lower limit ring 33. A central shaft 34 is fixed in the middle of the torsion spring housing 31 by a set screw. A torsion spring outer shaft 35 is sleeved outside the central shaft 34. The torsion spring outer shaft 35 is connected with a torsion spring 36 through a notch. The torsion spring 36 is connected with the inner notch of the torsion spring housing 31. The torsion spring outer shaft 35 is restricted by the central small circular hole of the lower limit ring 33. The upper part of the torsion spring outer shaft 35 is connected with a torsion spring inner shaft 37. The lower iris piece 38 and the upper iris piece 39 are fixed on the upper and lower parts of the torsion spring inner shaft 37 by set screws respectively.

[0035] As shown in the Figures 3-5 figure, the middle part of the lower iris piece 38 is connected with four upper and lower iris piece connecting columns 310 with the same structure through the inner circular holes of four protruding cylinders. The upper and lower iris piece connecting columns 310 are connected with the inner circular holes of four protruding cylinders of the upper iris piece 39. The outer part of the upper iris piece 39 is provided with spaced patterns. The upper part of the upper iris piece 39 is provided with an upper limit ring 311 connected to the torsion spring inner shaft 37 by a set screw. The middle parts of the lower iris piece 38 and the upper iris piece 39 are respectively connected with four variable diameter outer rings 312 through four waist-shaped holes. The two ends of the variable diameter outer ring 312 are respectively connected with the waist-shaped holes of the upper limit ring 311 and the lower limit ring 33.

[0036] As shown in the Figure 6 figure, the upper lock structure 4 includes a top cover lower shell 41 connected to the bracket 2. The top cover lower shell 41 is connected with a knob 42. The two ends of the knob 42 are connected with a first connecting rod 43 and a second connecting rod 44 respectively. The first connecting rod 43 and the second connecting rod 44 are respectively connected with a third connecting rod 45 and a fourth connecting rod 46. The third connecting rod 45 and the fourth connecting rod 46 are connected with the limit grooves of the top cover lower shell 41. The upper part of the top cover lower shell 41 is connected with a top cover upper shell 47. The central large circular hole of the top cover upper shell 47 is connected with the knob 42.

[0037] As shown in the Figure 7 figure, the lower lock structure 5 includes a bottom cover upper shell 51 connected to the bracket 2. The bottom cover upper shell 51 is connected with a bottom cover lower shell 52. The center of the bottom cover lower shell 52 is connected with a lower connecting rod 53. The lower connecting rod 53 is connected with a fifth connecting rod 54 and a sixth connecting rod 55. The fifth connecting rod 54 and the sixth connecting rod 55 are connected with a seventh connecting rod 56 and an eighth connecting rod 57. The seventh connecting rod 56 and the eighth connecting rod 57 are connected with the limit grooves of the bottom cover lower shell 52. The central small circular hole of the bottom cover upper shell 51 is connected with the middle cylinder of the lower connecting rod 53.

[0038] As shown in the Figure 8 figure, there are multiple arrayed notches inside the housing 1. The shapes of the notches match the cross-sectional shapes of the third connecting rod 45, the fourth connecting rod 46 of the upper lock structure 4 and the seventh connecting rod 56, the eighth connecting rod 57 of the lower lock structure 5.

[0039] As shown in the attached Figure 9 figure, four large round holes and two vertical rib plates are respectively provided at the front and rear parts of the bracket 2, a horizontal outer ring is provided in the middle part, eight convex waist-shaped pieces are respectively provided at the upper and lower parts, and each waist-shaped piece is provided with three round holes bolted to the upper locking structure 4 and the lower locking structure 5. There are three cross beams with the same structure in the middle part of the bracket 2, and a round hole connected to the bearing 61 is provided in the middle of each cross beam.

[0040] Working principle:

[0041] Place the fishing line reel in the fixed fishing line mechanism 3. When there is no external force, the coil spring 36 will automatically pull the inner shaft 37 of the coil spring to rotate counterclockwise, and then drive the lower iris piece 38 to rotate counterclockwise. The two ends of the shafts of the four variable-diameter outer rings 312 are constrained by the waist-shaped holes of the upper and lower iris pieces 38, 39 and the waist-shaped holes of the upper and lower limit rings 311, 33, and start to expand outwards, so as to automatically fit the fishing line reel. By clockwise rotating the outer pattern of the upper iris piece 39, the inner shaft 37 of the coil spring can be driven to rotate clockwise, and then drive the lower iris piece 38 to rotate clockwise, so that the variable-diameter outer ring 312 contracts, facilitating the removal of the fishing line reel. The upper locking structure 4 and the lower locking structure 5 realize the stable locking and easy opening of the box through the rotation of the knob 42 and the linkage system. Rotating the knob 42 can drive the first link 43 and the second link 44 to expand outwards, and then drive the third link 45 and the fourth link 46 to extend out of the lower shell 41 of the top cover and connect with the notch inside the outer shell 1. Rotating in the reverse direction will cause the linkage system to contract and disconnect from the notch inside the outer shell, facilitating operation. The operation principle of the lower locking structure 5 is similar to that of the upper locking structure 4. By driving the linkage system with the knob 42, the stable movement and locking of the locking structure are realized.

[0042] The above embodiments only express the implementation modes of the present utility model, and the description is relatively specific and detailed. However, it should not be construed as a limitation to the scope of the utility model patent. In this embodiment, up, down, left, right, front, and rear only represent their relative positions rather than their absolute positions, and the number of the 8 fixed fishing line mechanisms shown in this embodiment can be adjusted according to the actual situation. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A pull-out fishing line box adaptable to different fishing line reels, characterized in that: It includes a housing (1), inside which there is a bracket (2). There are four fixed fishing line mechanisms (3) respectively at the front and rear of the bracket (2). There is an upper locking structure (4) at the upper part of the bracket (2), a lower locking structure (5) at the lower part of the bracket (2), and a connecting mechanism (6) at the center of the bracket (2).

2. The pull-out fishing line box according to claim 1, characterized in that: The fixed fishing line mechanism (3) includes a spring housing (31) connected to the bracket (2). The upper part of the spring housing (31) is connected with an upper spring housing cover (32) through connecting grooves around. The upper spring housing cover (32) is connected with a lower limit ring (33). A central shaft (34) is fixed in the middle of the spring housing (31) by a set screw. A spring outer shaft (35) is sleeved outside the central shaft (34). The spring outer shaft (35) is connected with a spring (36) through a notch. The spring (36) is connected with the inner notch of the spring housing (31). The spring outer shaft (35) is restricted by the central small circular hole of the lower limit ring (33). The upper part of the spring outer shaft (35) is connected with a spring inner shaft (37). Lower and upper iris pieces (38, 39) are fixed to the upper and lower parts of the spring inner shaft (37) by set screws respectively.

3. The pull-out fishing line box according to claim 2, characterized in that: Four identically structured upper and lower iris piece connecting columns (310) are connected to the middle of the lower iris piece (38) through the inner circular holes of four protruding cylinders. The upper and lower iris piece connecting columns (310) are connected to the inner circular holes of four protruding cylinders of the upper iris piece (39). There are spaced patterns outside the upper iris piece (39). An upper limit ring (311) connected to the spring inner shaft (37) by a set screw is provided at the upper part of the upper iris piece (39). Four variable diameter outer rings (312) are connected to the middle of the lower iris piece (38) and the upper iris piece (39) respectively through four waist-shaped holes. The two ends of the variable diameter outer ring (312) are respectively connected to the waist-shaped holes of the upper limit ring (311) and the lower limit ring (33).

4. The pull-out fishing line box according to claim 3, wherein: The variable diameter outer ring (312) is provided with an arc-shaped outer ring outside and is connected with a shaft connected to the upper and lower iris pieces (38, 39) inside. The arc-shaped outer ring and the shaft are connected by two connecting arms.

5. The pull-out fishing line box according to claim 1, characterized in that: The upper locking structure (4) includes a lower top cover housing (41) connected to the bracket (2). The lower top cover housing (41) is connected with a knob (42). A first connecting rod (43) and a second connecting rod (44) are connected to the two ends of the knob (42). A third connecting rod (45) and a fourth connecting rod (46) are respectively connected to the first connecting rod (43) and the second connecting rod (44). The third connecting rod (45) and the fourth connecting rod (46) are connected to the limit grooves of the lower top cover housing (41). An upper top cover housing (47) is connected to the upper part of the lower top cover housing (41). The central large circular hole of the upper top cover housing (47) is connected with the knob (42).

6. The pull-out fishing line box according to claim 5, wherein: The lower locking structure (5) includes an upper bottom cover (51) connected to the bracket (2), the upper bottom cover (51) is connected with a lower bottom cover (52), a lower connecting rod (53) is connected to the center of the lower bottom cover (52), the lower connecting rod (53) is connected with a fifth connecting rod (54) and a sixth connecting rod (55), the fifth connecting rod (54) and the sixth connecting rod (55) are connected with a seventh connecting rod (56) and an eighth connecting rod (57), the seventh connecting rod (56) and the eighth connecting rod (57) are connected to the limiting slots of the lower bottom cover (52), and the central small circular hole of the upper bottom cover (51) is connected to the middle cylinder of the lower connecting rod (53).

7. The pull-out fishing line box according to claim 1, wherein: The connecting mechanism (6) includes three bearings (61) connected to the bracket (2), a connecting shaft (62) is connected to the center of the bearings (61), the upper part of the connecting shaft (62) is connected to the circular hole of the lower convex platform of the knob (42), the lower part of the connecting shaft (62) is connected to the circular hole of the middle cylinder of the lower connecting rod (53), and the upper and lower parts of the connecting shaft (62) are tightened and fixed to the knob (42) and the lower connecting rod (53) respectively by set screws.

8. The pull-out fishing line box according to claim 1, wherein: There are multiple arrayed notches inside the housing (1), and the shapes of the cross-sections of the notches match those of the third connecting rod (45) and the fourth connecting rod (46) of the upper locking structure (4) and the seventh connecting rod (56) and the eighth connecting rod (57) of the lower locking structure (5).

9. The pull-out fishing line box according to claim 1, wherein: The front and rear parts of the bracket (2) are each provided with four large circular holes and two vertical rib plates, the middle part is provided with a horizontal outer ring, the upper and lower parts are each provided with eight raised waist-shaped pieces, each waist-shaped piece has three circular holes for bolt connection with the upper locking structure (4) and the lower locking structure (5), the middle part of the bracket (2) has three cross beams with the same structure, and the middle of each cross beam has a circular hole connected to the bearing (61).

Images