Power deck chair with natural external force

Abstract

The utility model belongs to the technical field of reclining chairs, and particularly relates to a natural external force power reclining chair which comprises a power fixing seat, a foot support, a power balance seat, a rotating shaft, a lifting connecting piece and a cushion support, and the foot support and the cushion support are connected together through a first connecting assembly; the right side of the cushion bracket is connected with the backrest bracket through a second connecting assembly; the top end of the backrest bracket is connected with the power seat through a third connecting assembly; the right side of the foot support is connected with two sets of power arms through a fourth connecting assembly. According to the reclining chair, when the reclining chair is subjected to sitting and lying conversion, too many steps are not needed, only force needs to be applied, then people can conveniently convert the form of the reclining chair, and convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of reclining chair technology, specifically a reclining chair powered by natural external force. Background Technology

[0002] A recliner is a chair designed for lying down, offering stress relief and relaxation. It typically consists of a reclining seat, a backrest, and a support structure. Its design emphasizes ergonomics, using scientifically designed seat angles and support structures to better conform to the curves of the human body, providing a comfortable resting space.

[0003] However, existing reclining chairs may involve numerous steps when switching between sitting and reclining, which can be inconvenient for users. Therefore, a recumbent chair powered by natural external force is proposed. Summary of the Invention

[0004] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0005] A naturally powered recliner includes a power-fixed base, a footrest, a power balance seat, a pivot, a lifting connector, and a seat cushion support. The footrest and the seat cushion support are connected together by a first connecting assembly. The right side of the seat cushion support is connected to a backrest support by a second connecting assembly. The top of the backrest support is connected to the power base by a third connecting assembly. The right side of the footrest is connected to two sets of power arms by a fourth connecting assembly. The power base and the power arms are connected together by a fifth connecting assembly. The power-fixed base, the lifting connector, the pivot, and the power base are connected together by a sixth connecting assembly. The lifting connector, the power balance seat, the power-fixed base, and the power base are connected together by a seventh connecting assembly. The connecting piece, the seat cushion bracket, and the power fixing seat are connected together by an eighth connecting assembly; the lifting connecting piece and the power fixing seat are connected together by a ninth connecting assembly; the lifting connecting piece and the seat cushion bracket are connected together by a tenth connecting assembly; the lifting connecting piece, the power balance seat, and the power fixing seat are connected together by an eleventh connecting assembly; the power fixing seat has a power compartment in the middle, a lower power compartment rail below the power compartment, and an upper power compartment rail above the power compartment; a handle is fixedly installed at one end of the rotating shaft, the rotating shaft has a hook and a limiting post, the top of the power fixing seat has a rotating shaft hole, and the rotating shaft is rotatably connected in the rotating shaft hole; the power seat has a hanging pin, and the power connecting piece is located in the power compartment.

[0006] As a preferred embodiment of the naturally powered recliner described in this utility model, the first connecting component includes a first pin and a first pin hole. The top two sides of the foot support are provided with first pin holes. The left side of the seat support is rotatably connected to the first pin, and the first pin passes through the first pin hole.

[0007] The second connecting component includes a second pin and a second pin hole. The right side of the seat cushion bracket is rotatably connected to the second pin. The bottom ends of the backrest bracket are provided with second pin holes on both sides, and the second pin passes through the second pin holes.

[0008] As a preferred embodiment of the naturally powered recliner described in this utility model, the third connecting component includes a third pin and a third pin hole, the top of the backrest bracket is rotatably connected to the third pin, and the top of the power seat has third pin holes on both sides, with the third pin passing through the third pin holes.

[0009] The fourth connecting component includes a fourth pin and a fourth pin hole. The right side of the foot bracket is rotatably connected to the fourth pin. The top end of the power arm has a fourth pin hole, and the fourth pin passes through the fourth pin hole.

[0010] As a preferred embodiment of the naturally powered recliner described in this utility model, the fifth connecting component includes a fifth pin hole, a sixth pin hole, and a fifth pin. The bottom end of the power arm is provided with a fifth pin hole, and both sides of the bottom end of the power seat are provided with sixth pin holes. The fifth pin is rotatably connected in the fifth pin hole and passes through the sixth pin hole.

[0011] As a preferred embodiment of the naturally powered reclining chair described in this utility model, the sixth connecting component includes an eleventh pin, an eighth pin hole, and a ninth pin hole. The right end of the lifting connector is rotatably connected to the eleventh pin. The left end of the power seat has eighth pin holes on both sides, and the top end of the power fixing seat has ninth pin holes on both sides. The eleventh pin passes through the eighth pin hole, the ninth pin hole, and the rotating shaft.

[0012] As a preferred embodiment of the naturally powered reclining chair described in this utility model, the seventh connecting component includes a sixth pin, a tenth pin hole, an eleventh pin hole, and a first sliding groove. The right side of the power balance seat is rotatably connected to the sixth pin. The bottom ends of the lifting connector are provided with tenth pin holes on both sides. The left ends of the power seat are provided with eleventh pin holes on both sides. The top ends of the power fixing seat are provided with first sliding grooves on both sides. The sixth pin passes through the tenth pin hole and the eleventh pin hole, and the end of the sixth pin is slidably connected in the first sliding groove. The top end of the first sliding groove is provided as a first storage groove, and the bottom end of the first sliding groove is provided as a second storage groove.

[0013] As a preferred embodiment of the naturally powered reclining chair described in this utility model, the eighth connecting component includes a twelfth pin hole, a thirteenth pin hole, a seventh pin, and a slot. The left end of the lifting connector has twelfth pin holes on both sides, the bottom end of the seat cushion bracket has thirteenth pin holes on both sides, the top end of the power fixing seat has slots on both sides, the seventh pin is rotatably connected in the seventh pin hole, the seventh pin passes through the twelfth pin hole, and the end of the seventh pin is provided with a slot.

[0014] As a preferred embodiment of the naturally powered reclining chair described in this utility model, the ninth connecting component includes an eighth pin and a fourteenth pin hole. The eighth pin is rotatably connected to one side of the lifting connector. The fourteenth pin hole is provided on both sides of the top of the power fixing seat, and the eighth pin passes through the fourteenth pin hole.

[0015] As a preferred embodiment of the naturally powered recliner described in this utility model, the tenth connecting component includes a fifteenth pin hole, a sixteenth pin hole, and a ninth pin. The lifting connector has fifteenth pin holes on both sides, and the seat cushion bracket has sixteenth pin holes on both sides at the bottom. The ninth pin is rotatably connected in the sixteenth pin hole, and the ninth pin passes through the fifteenth pin hole.

[0016] As a preferred embodiment of the naturally powered reclining chair described in this utility model, the eleventh connecting component includes a seventeenth pin hole, a tenth pin, and a second sliding groove. The bottom ends of the lifting connector are provided with seventeenth pin holes on both sides. The left end of the power balance seat is rotatably connected to the tenth pin, and the tenth pin passes through the seventeenth pin hole. The top ends of the power fixing seat are provided with second sliding grooves on both sides, and the end of the tenth pin is slidably connected in the second sliding groove. The top end of the second sliding groove is provided as a third storage groove, and the bottom end of the second sliding groove is provided as a fourth storage groove.

[0017] Compared with existing technologies:

[0018] This invention enables users to easily switch between sitting and reclining positions in a reclining chair without requiring numerous steps; simply applying force is sufficient. This improves convenience by facilitating the transformation of the chair's shape. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the explosive structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model in a seated position;

[0021] Figure 3This is a schematic diagram of the structure of this utility model in a lying position.

[0022] In the diagram: Hook 1, Pin 2, Power Mounting Base 3, Power Compartment Lower Rail 4, Power Connector 5, Power Compartment Upper Rail 6, Limiting Post 7, Foot Bracket 8, Power Arm 9, Rotary Shaft Hole 10, Power Balance Seat 11, Rotary Shaft 12, Lifting Connector 13, Power Seat 14, Handle 15, Backrest Bracket 16, Seat Cushion Bracket 17.

[0023] Second pin 11a, second pin hole 11b, first pin 12a, first pin hole 12b, third pin 21a, third pin hole 21b, fourth pin 22a, fourth pin hole 22b, fifth pin hole 23a, sixth pin hole 23b, fifth pin 23c, eleventh pin 31a, eighth pin hole 31b, ninth pin hole 31c, sixth pin 32a, tenth pin hole 32b, eleventh pin hole 32c, and so on. 32d, 32e, 32f, 33a, 33b, 33c, 33d, 34a, 34b, 35a, 35b, 36a, 36b, 36c, 36d, 36e, 32d, 32d, 32d, 32e, 32f, 33a, 33b, 33c, 34a, 34b, 35a, 35b, 36c, 36a, 36b, 36d, 36e, 32d, 32e, 32f, 33a, 33b, 33c, 34a, 34b, 35a, 35b, 36c, 36d, 36e, 32d, 32e, 32f, 33a, 33b, 33c, 34a, 34b, 35a, 35b, 35c, 36a, 36b, 36d, 36e, 32d, 32e, 32f, 33a, 33b, 33c, 34a, 35b, 35c, 36a, 36b, 36d, 36e, 36d, 36e, 32d, 32e, 32f, 32a, 33b, 33c, 34a, 35b, 35c, 36a, 36b, 36c, 36d, 36e ... Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] This utility model provides a recumbent chair powered by natural external force. Please refer to [link / reference]. Figures 1-3The system includes a power mounting base 3, foot brackets 8, a power balance seat 11, a rotating shaft 12, a lifting connector 13, and a seat cushion support 17. The foot brackets 8 and seat cushion support 17 are connected together via a first connecting assembly. The right side of the seat cushion support 17 is connected to a backrest support 16 via a second connecting assembly. The top of the backrest support 16 is connected to a power base 14 via a third connecting assembly. The right side of the foot brackets 8 is connected to two sets of power arms 9 via a fourth connecting assembly. The power base 14 and power arms 9 are connected together via a fifth connecting assembly. The power mounting base 3, lifting connector 13, rotating shaft 12, and power base 14 are connected together via a sixth connecting assembly. The lifting connector 13, power balance seat 11, power mounting base 3, and power base 14 are connected together via a seventh connecting assembly. The lifting connector 13... The seat support 17 and the power mounting base 3 are connected together by the eighth connecting component; the lifting connector 13 and the power mounting base 3 are connected together by the ninth connecting component; the lifting connector 13 and the seat support 17 are connected together by the tenth connecting component; the lifting connector 13, the power balance seat 11 and the power mounting base 3 are connected together by the eleventh connecting component; the power mounting base 3 has a power compartment in the middle, a lower power compartment rail 4 below the power compartment and an upper power compartment rail 6 above the power compartment; a handle 15 is fixedly installed at one end of the rotating shaft 12, a hook 1 and a limiting post 7 are provided on the rotating shaft 12, a rotating shaft hole 10 is opened at the top of the power mounting base 3, and the rotating shaft 12 is rotatably connected in the rotating shaft hole 10; a hanging pin 2 is provided on the power seat 14, and a power connector 5 is provided in the power compartment.

[0026] The first connecting component includes a first pin 12a and a first pin hole 12b. The first pin holes 12b are provided on both sides of the top of the foot bracket 8. The left side of the seat bracket 17 is rotatably connected to the first pin 12a, and the first pin 12a passes through the first pin hole 12b.

[0027] The second connecting component includes a second pin 11a and a second pin hole 11b. The right side of the seat cushion bracket 17 is rotatably connected to the second pin 11a. The bottom ends of the backrest bracket 16 are provided with second pin holes 11b on both sides, and the second pin 11a passes through the second pin hole 11b.

[0028] The third connecting component includes a third pin 21a and a third pin hole 21b. The top of the backrest bracket 16 is rotatably connected to the third pin 21a. The top of the power seat 14 has third pin holes 21b on both sides, and the third pin 21a passes through the third pin hole 21b.

[0029] The fourth connecting component includes a fourth pin 22a and a fourth pin hole 22b. The right side of the foot bracket 8 is rotatably connected to the fourth pin 22a. The top end of the power arm 9 has a fourth pin hole 22b, and the fourth pin 22a passes through the fourth pin hole 22b.

[0030] The fifth connecting component includes a fifth pin hole 23a, a sixth pin hole 23b, and a fifth pin 23c. The bottom end of the power arm 9 is provided with a fifth pin hole 23a, and both sides of the bottom end of the power seat 14 are provided with sixth pin holes 23b. The fifth pin 23c is rotatably connected in the fifth pin hole 23a, and the fifth pin 23c passes through the sixth pin hole 23b.

[0031] The sixth connecting component includes an eleventh pin 31a, an eighth pin hole 31b, and a ninth pin hole 31c. The right end of the lifting connector 13 is rotatably connected to the eleventh pin 31a. The left end of the power seat 14 has eighth pin holes 31b on both sides. The top end of the power fixing seat 3 has ninth pin holes 31c on both sides. The eleventh pin 31a passes through the eighth pin hole 31b, the ninth pin hole 31c, and the rotating shaft 12.

[0032] The seventh connecting component includes a sixth pin 32a, a tenth pin hole 32b, an eleventh pin hole 32c, and a first slide groove 32d. The right side of the power balance seat 11 is rotatably connected to the sixth pin 32a. The bottom end of the lifting connector 13 is provided with tenth pin holes 32b on both sides. The left end of the power seat 14 is provided with eleventh pin holes 32c on both sides. The top end of the power fixing seat 3 is provided with first slide grooves 32d on both sides. The sixth pin 32a passes through the tenth pin hole 32b and the eleventh pin hole 32c, and the end of the sixth pin 32a is slidably connected in the first slide groove 32d. The top end of the first slide groove 32d is set as a first storage groove 32f, and the bottom end of the first slide groove 32d is set as a second storage groove 32e.

[0033] The eighth connecting component includes a twelfth pin hole 33a, a thirteenth pin hole 33b, a seventh pin 33c, and a slot 33d. The twelfth pin hole 33a is provided on both sides of the left end of the lifting connector 13. The thirteenth pin hole 33b is provided on both sides of the bottom end of the seat support 17. The slot 33d is provided on both sides of the top end of the power fixing seat 3. The seventh pin 33c is rotatably connected in the slot 33d. The seventh pin 33c passes through the twelfth pin hole 33a, and the end of the seventh pin 33c is provided in the slot 33d.

[0034] The ninth connecting component includes an eighth pin 34a and a fourteenth pin hole 34b. The eighth pin 34a is rotatably connected to one side of the lifting connector 13. The fourteenth pin hole 34b is provided on both sides of the top of the power fixing seat 3, and the eighth pin 34a passes through the fourteenth pin hole 34b.

[0035] The tenth connecting component includes a fifteenth pin hole 35a, a sixteenth pin hole 35b, and a ninth pin 35c. The lifting connector 13 has a fifteenth pin hole 35a on both sides, and the seat cushion bracket 17 has a sixteenth pin hole 35b on both sides at the bottom. The ninth pin 35c is rotatably connected in the sixteenth pin hole 35b, and the ninth pin 35c passes through the fifteenth pin hole 35a.

[0036] The eleventh connecting component includes a seventeenth pin hole 36a, a tenth pin 36b, and a second slide groove 36c. The seventeenth pin hole 36a is provided on both sides of the bottom end of the lifting connector 13. The left end of the power balance seat 11 is rotatably connected to the tenth pin 36b, and the tenth pin 36b passes through the seventeenth pin hole 36a. The top end of the power fixing seat 3 is provided on both sides of the top end of the second slide groove 36c, and the end of the tenth pin 36b is slidably connected in the second slide groove 36c. The top end of the second slide groove 36c is set as a third storage groove 36e, and the bottom end of the second slide groove 36c is set as a fourth storage groove 36d.

[0037] In practical use, its principle is as follows:

[0038] When the seat is in the "sitting position", hook 1 cannot hook pin 2. At this time, the power connector 5 is located at the lower rail 4 of the power compartment, the sixth pin 32a is in the second storage slot 32e, and the tenth pin 36b is in the fourth storage slot 36d. When the seat is in the "reclining position", hook 1 can hook pin 2. At this time, the power connector 5 is located at the upper rail 6 of the power compartment, the sixth pin 32a is in the first storage slot 32f, and the tenth pin 36b is in the third storage slot 36e.

[0039] Movement: When the seat changes from a "sitting position" to a "reclining position", an external force is applied to the backrest support 16 and transmitted to the power seat 14, causing the sixth and ninth connecting components to rotate. At this time, the backrest support 16 is in a flat position, and the sixth pin 32a and the tenth pin 36b move from the lower point to the upper point. At this time, the eighth and tenth connecting components lift the seat cushion support 17; at the same time, the footrest 8 will also be lifted. When the power connector 5 slides from the lower rail 4 of the power compartment to the upper rail 6 of the power compartment, the hook 1 on its handle can hook the hanging pin 2, and the limit post 7 locks the "reclining position".

[0040] Movement: When the seat changes from a "reclining position" to a "sitting position", when the hook 1 on the handle disengages from the pin 2, an external force is applied to the foot bracket 8 and transmitted sequentially to the power connector 5, power arm 9 and power seat 14, at which point the foot bracket 8 is lowered; when the power connector 5 slides from the upper rail 6 of the power compartment to the lower rail 4 of the power compartment, the sixth and ninth connecting components rotate, and the sixth pin 32a and the tenth pin 36b move from the upper point to the lower point. At this time, the eighth and tenth connecting components lower the seat cushion bracket 17; the backrest bracket 16 is in the upright position.

[0041] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A reclining chair powered by natural external force, characterized in that, The system includes a power mounting base (3), a foot bracket (8), a power balance seat (11), a rotating shaft (12), a lifting connector (13), and a seat cushion support (17). The foot bracket (8) and the seat cushion support (17) are connected together by a first connecting component. The right side of the seat cushion support (17) is connected to a backrest support (16) via a second connecting component. The top of the backrest support (16) is connected to a power seat (14) via a third connecting component. The right side of the foot bracket (8) is connected to two sets of power arms (9) via a fourth connecting component. The power seat (14) and the power arms (9) are connected together by a fifth connecting component. The power mounting base (3), the lifting connector (13), the rotating shaft (12), and the power seat (14) are connected together by a sixth connecting component. The lifting connector (13), the power balance seat (11), the power mounting base (3), and the power seat (14) are connected together by a seventh connecting component. The lifting connector (13)... The seat support (17) and the power mounting base (3) are connected together by an eighth connecting component; the lifting connector (13) and the power mounting base (3) are connected together by a ninth connecting component; the lifting connector (13) and the seat support (17) are connected together by a tenth connecting component; the lifting connector (13), the power balance seat (11), and the power mounting base (3) are connected together by an eleventh connecting component; the power mounting base (3) has a power compartment in the middle, a lower power compartment rail (4) below the power compartment, and an upper power compartment rail (6) above the power compartment; a handle (15) is fixedly installed at one end of the rotating shaft (12), a hook (1) and a limiting post (7) are provided on the rotating shaft (12), a rotating shaft hole (10) is opened at the top of the power mounting base (3), and the rotating shaft (12) is rotatably connected in the rotating shaft hole (10); a hanging pin (2) is provided on the power seat (14), and a power connector (5) is provided in the power compartment.

2. The recumbent chair powered by natural external force according to claim 1, characterized in that, The first connecting component includes a first pin (12a) and a first pin hole (12b). The first pin holes (12b) are provided on both sides of the top of the foot bracket (8). The left side of the seat bracket (17) is rotatably connected to the first pin (12a), and the first pin (12a) passes through the first pin hole (12b). The second connecting component includes a second pin (11a) and a second pin hole (11b). The right side of the seat cushion bracket (17) is rotatably connected to the second pin (11a). The bottom ends of the backrest bracket (16) are provided with second pin holes (11b) on both sides, and the second pin (11a) passes through the second pin hole (11b).

3. The recumbent chair powered by natural external force according to claim 1, characterized in that, The third connecting component includes a third pin (21a) and a third pin hole (21b). The top of the backrest bracket (16) is rotatably connected to the third pin (21a). The top of the power seat (14) has third pin holes (21b) on both sides, and the third pin (21a) passes through the third pin hole (21b). The fourth connecting component includes a fourth pin (22a) and a fourth pin hole (22b). The right side of the foot bracket (8) is rotatably connected to the fourth pin (22a). The top end of the power arm (9) is provided with a fourth pin hole (22b), and the fourth pin (22a) passes through the fourth pin hole (22b).

4. The naturally powered recliner according to claim 1, characterized in that, The fifth connecting component includes a fifth pin hole (23a), a sixth pin hole (23b), and a fifth pin (23c). The bottom end of the power arm (9) is provided with a fifth pin hole (23a), and both sides of the bottom end of the power seat (14) are provided with sixth pin holes (23b). The fifth pin (23c) is rotatably connected in the fifth pin hole (23a), and the fifth pin (23c) passes through the sixth pin hole (23b).

5. A recumbent chair powered by natural external force according to claim 1, characterized in that, The sixth connecting component includes an eleventh pin (31a), an eighth pin hole (31b), and a ninth pin hole (31c). The right end of the lifting connector (13) is rotatably connected to the eleventh pin (31a). The left end of the power seat (14) has eighth pin holes (31b) on both sides. The top end of the power fixing seat (3) has ninth pin holes (31c) on both sides. The eleventh pin (31a) passes through the eighth pin hole (31b), the ninth pin hole (31c), and the rotating shaft (12).

6. A recumbent chair powered by natural external force according to claim 1, characterized in that, The seventh connecting component includes a sixth pin (32a), a tenth pin hole (32b), an eleventh pin hole (32c), and a first slide groove (32d). The right side of the power balance seat (11) is rotatably connected to the sixth pin (32a). The bottom end of the lifting connector (13) is provided with tenth pin holes (32b) on both sides. The left end of the power seat (14) is provided with eleventh pin holes (32c) on both sides. The top end of the power fixing seat (3) is provided with first slide grooves (32d) on both sides. The sixth pin (32a) passes through the tenth pin hole (32b) and the eleventh pin hole (32c), and the end of the sixth pin (32a) is slidably connected in the first slide groove (32d). The top end of the first slide groove (32d) is set as a first storage groove (32f), and the bottom end of the first slide groove (32d) is set as a second storage groove (32e).

7. A recumbent chair powered by natural external force according to claim 1, characterized in that, The eighth connecting component includes a twelfth pin hole (33a), a thirteenth pin hole (33b), a seventh pin (33c), and a slot (33d). The twelfth pin hole (33a) is provided on both sides of the left end of the lifting connector (13). The thirteenth pin hole (33b) is provided on both sides of the bottom end of the seat support (17). The slot (33d) is provided on both sides of the top end of the power fixing seat (3). The seventh pin (33c) is rotatably connected in the seventh pin hole (33c). The seventh pin (33c) passes through the twelfth pin hole (33a), and the end of the seventh pin (33c) is provided in the slot (33d).

8. A recumbent chair powered by natural external force according to claim 1, characterized in that, The ninth connecting component includes an eighth pin (34a) and a fourteenth pin hole (34b). The eighth pin (34a) is rotatably connected to one side of the lifting connector (13). The fourteenth pin hole (34b) is provided on both sides of the top of the power fixing seat (3), and the eighth pin (34a) passes through the fourteenth pin hole (34b).

9. A recumbent chair powered by natural external force according to claim 1, characterized in that, The tenth connecting component includes a fifteenth pin hole (35a), a sixteenth pin hole (35b), and a ninth pin (35c). The lifting connector (13) has a fifteenth pin hole (35a) on both sides, and the seat cushion bracket (17) has a sixteenth pin hole (35b) on both sides at the bottom. The ninth pin (35c) is rotatably connected in the sixteenth pin hole (35b), and the ninth pin (35c) passes through the fifteenth pin hole (35a).

10. A recumbent chair powered by natural external force according to claim 1, characterized in that, The eleventh connecting component includes a seventeenth pin hole (36a), a tenth pin (36b), and a second slide groove (36c). The bottom end of the lifting connector (13) is provided with a seventeenth pin hole (36a) on both sides. The left end of the power balance seat (11) is rotatably connected to the tenth pin (36b), and the tenth pin (36b) passes through the seventeenth pin hole (36a). The top end of the power fixing seat (3) is provided with a second slide groove (36c) on both sides, and the end of the tenth pin (36b) is slidably connected in the second slide groove (36c). The top end of the second slide groove (36c) is set as a third storage groove (36e), and the bottom end of the second slide groove (36c) is set as a fourth storage groove (36d).

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