Bundling device for fuel cell stack

Abstract

The present invention provides a bundling device for a fuel cell stack, wherein the bundling device can lock a bundling belt so that the bundling belt is tightly bound to the fuel cell stack and the fuel cell stack is tightened and has a stable structure.

Description

Technical Field

[0001] The present invention relates to a fuel cell, and more particularly to a bundling device for a fuel cell stack, wherein the bundling device for a fuel cell stack of the present invention can be used to bundle the fuel cell stacks together. Furthermore, the present invention further provides a strap locker for the bundling device for a fuel cell stack. Background Art

[0002] A fuel cell is a power generation device that directly converts the chemical energy in a fuel into electrical energy through an electrochemical reaction. However, a single fuel cell (or fuel cell monomer) can provide a low voltage and output power. In practical applications, multiple fuel cells are generally stacked together to form a fuel cell stack that can provide high voltage and high power. Accordingly, since the fuel cell stack of a fuel cell is formed by stacking multiple fuel cell monomers together, the fuel cell monomers of the fuel cell stack must be firmly assembled together to ensure the structural stability of the fuel cell stack.

[0003] The fuel cell stack of the existing fuel cell is mostly fixed together by screws. However, fixing the fuel cell stack by screws can easily lead to uneven force on various parts of the fuel cell stack. In addition, when using screws for fixing, in order to ensure the fixation of the fuel cell stack, multiple screws are often required to achieve the purpose of fastening, which leads to the increase in the volume of the fuel cell stack, the complexity of the manufacturing process and the increase in manufacturing cost. Summary of the invention

[0004] The main advantage of the present invention is to provide a bundling device for a fuel cell stack, wherein the bundling device for a fuel cell stack of the present invention can tightly bundle fuel cell monomers of the fuel cell stack together.

[0005] Another advantage of the present invention is to provide a bundling device for a fuel cell stack, wherein the bundling device for a fuel cell stack of the present invention can tightly bundle fuel cell monomers of a fuel cell stack together by locking the free ends of its bundling bands on the bundling band lockers.

[0006] Another advantage of the present invention is to provide a bundling device for a fuel cell stack, wherein the bundling device for a fuel cell stack of the present invention does not require precise components and complex structures, has a simple manufacturing process, is low-cost and is easy to use.

[0007] Other advantages and features of the present invention will become more apparent from the following detailed description and may be realized by means of the instrumentalities and combinations particularly pointed out in the appended claims.

[0008] According to one aspect of the present invention, a bundling device for a fuel cell stack of the present invention that can achieve the aforementioned objects and other objects and advantages includes:

[0009] A belt having a first end, a second end, and a belt body extending between the first end and the second end of the belt; and

[0010] A strap locker, wherein the strap locker comprises a base, a first reel and a second reel, wherein the first reel and the second reel are respectively arranged on the base, wherein the first end of the strap is rolled on the first reel, and the second end of the strap is rolled on the second reel, so that the strap can be tightened and a bundling space is formed between the strap body of the strap and the base of the strap locker, so that the fuel cell stack is bundled. Preferably, the strap is made of metal or alloy material.

[0011] According to another aspect of the present invention, the present invention further provides an object bundling method, which comprises the following steps:

[0012] (A) Place the object to be tied on top of the strap;

[0013] (B) fixing the two ends of the strap and rolling the strap onto a first reel and a second reel from the two ends of the strap, respectively, wherein the total length of the strap rolled onto the first reel and the second reel is a predetermined length so that the strap can be tied to the object to be tied; and

[0014] (C) The strap having the preset length is wound on the first reel and the second reel, respectively.

[0015] Further objects and advantages of the present invention will be fully apparent from an understanding of the following description and the accompanying drawings.

[0016] These and other objects, features and advantages of the present invention will be more fully understood from the following detailed description, accompanying drawings and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of a fuel cell stack according to an embodiment of the present invention, wherein the fuel cell stack shown in the figure is bundled together by the bundling device of the present invention.

[0018] Figure 2 It is a stereoscopic view of a bundling device for a fuel cell stack according to the above-mentioned embodiment of the present invention, wherein the strap locker of the bundling device for a fuel cell stack shown in the figure locks the two ends of the strap of the bundling device for a fuel cell stack of the present invention on the strap locker respectively.

[0019] Figure 3It is another stereoscopic view of the bundling device for a fuel cell stack according to the above-mentioned embodiment of the present invention, wherein the two ends of the strap of the bundling device for a fuel cell stack shown in the figure are respectively rolled up along the base of the strap locker under the tightening action of the strap locker.

[0020] Figure 4 1 is an assembly diagram of a bundling device for a fuel cell stack according to the embodiment of the present invention.

[0021] Figure 5 4 is a perspective view of a strap locker of a bundling device for a fuel cell stack according to the embodiment of the present invention.

[0022] Figure 6 Shown are a first reel and a second reel of a strap locker of a bundling device for a fuel cell stack according to the embodiment of the present invention.

[0023] Fig. 7A 4 is a perspective view of a first reel of a strap locker of a bundling device for a fuel cell stack according to the embodiment of the present invention.

[0024] Figure 7B 4 is a cross-sectional view of a first reel of a strap locker of a bundling device for a fuel cell stack according to the embodiment of the present invention.

[0025] Fig. 8A 4 is a perspective view of a second reel of a strap locker of a bundling device for a fuel cell stack according to the embodiment of the present invention.

[0026] Figure 8B 4 is a cross-sectional view of a second reel of a strap locker of a bundling device for a fuel cell stack according to the embodiment of the present invention.

[0027] Fig. 9A 4 is a cross-sectional view of a first supporting member of the base of the strap locker of the bundling device for a fuel cell stack according to the embodiment of the present invention.

[0028] Fig. 9B 4 is another cross-sectional view of the first supporting member of the base of the strap locker of the bundling device for a fuel cell stack according to the embodiment of the present invention.

[0029] Fig. 10A 4 is a perspective view of a first brake member of a strap locker of a bundling device for a fuel cell stack according to the embodiment of the present invention.

[0030] Fig. 10B 4 is a perspective view of a second brake member of a strap locker of a bundling device for a fuel cell stack according to the embodiment of the present invention.

[0031] Fig.11AIt is a cross-sectional view of a strap locker of a bundling device for a fuel cell stack according to the above-mentioned embodiment of the present invention, wherein the figure shows that the first end of the strap is inserted into the first slot of the first reel, and the second end of the strap is inserted into the second slot of the second reel.

[0032] Fig. 11B It is a cross-sectional view of a strap locker of a bundling device for a fuel cell stack according to the above-mentioned embodiment of the present invention, wherein the figure shows that the first end of the strap is rolled up on the first reel and the second end of the strap is rolled up on the second reel.

[0033] Fig.12 Shown is an optional implementation of the first reel and the second reel of the strap locker of the bundling device for a fuel cell stack according to the above embodiment of the present invention.

[0034] Fig.13 is a flow chart of the object bundling method according to the above-mentioned embodiment of the present invention. DETAILED DESCRIPTION

[0035] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0036] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0037] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0038] Referring to the accompanying drawings of the present invention Figures 1 to 11B, a bundling device for a fuel cell stack according to an embodiment of the present invention is illustrated, wherein the bundling device for a fuel cell stack of the present invention includes a strap locker 10 and a strap 20, wherein the strap 20 forms a first end 21, a second end 22 and a strap body 23 extending between the first end 21 and the second end 22, the strap locker 10 includes a base 11, a first reel 12 and a second reel 13, wherein the first reel 12 and the second reel 13 are respectively arranged on the base 11, wherein the first end 21 of the strap 20 is rolled up on the first reel 12, and the second end 22 of the strap 20 is rolled up on the second reel 13, so that the strap 20 can be tightened and form a bundling space 201 located between the strap body 23 of the strap 20 and the base 11 of the strap locker 10, thereby allowing the fuel cell stack 1 to be bundled. Accordingly, the bundling device for a fuel cell stack of the present invention can be used to bundle the fuel cell stack 1 so that it has a stable structure. Preferably, the bundling band 20 is made of a metal or alloy material. More preferably, the bundling band 20 is made of a metal or alloy material having a yield strength of not less than 206Mpa.

[0039] It is worth noting that the length of the belt body 23 of the strapping device of the present invention is set according to the size of the fuel cell stack 1, so that the strapping space 201 formed by the belt body 23 and the base 11 is suitable for the fuel cell stack 1 to be strapped therein. The lengths of the first end 21 and the second end 22 of the strapping device of the present invention can be set slightly longer so that the first end 21 and the second end 22 of the strapping device 20 can be rolled on the first reel 12 and the second reel 13. However, when the length of the strap 20 is too long, the user can adjust the size of the strapping space 201 formed by the strapping device by rolling a longer portion of the strap 20 (starting from the first end 21 and the second end 22 of the strap 20) on the first reel 12 and the second reel 13, and make it suitable for strapping the fuel cell stack 1 therein. At this time, the first end 21 and / or the second end 22 formed by the strap 20 have a longer length. Accordingly, the user can adjust the size of the bundling space 201 formed by the bundling device by rolling up the length of the first reel 12 and the second reel 13 of the band locker 10. Therefore, the bundling device of the present invention tightens the band 20 by rolling up the band 20 by the first reel 12 and the second reel 13 of the band locker 10, so that even if the band 20 of the bundling device of the present invention is too long, the fuel cell stack 1 can be well bundled.

[0040] As shown in the attached picture Figures 1 to 11BAs shown, the first reel 12 and the second reel 13 of the tie band locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention are rotatably arranged on the base 11, so that when the first reel 12 rotates in a first rolling direction and the second reel 13 rotates in a second rolling direction, the first end 21 of the tie band 20 is gradually rolled up on the first reel 12 and the second end 22 of the tie band 20 is gradually rolled up on the second reel 13, so that the tie band 20 is gradually tightened and the fuel cell stack 1 is tightly bundled. It can be understood that the first end 21 of the tie band 20 is suitable for being arranged on the first reel 12, and the second end 22 of the tie band 20 is suitable for being arranged on the second reel 13, so that the first end 21 of the tie band 20 can be rolled up on the first reel 12, and the second end 22 of the tie band 20 can be rolled up on the second reel 13. Specifically, when the first reel 12 rotates toward the first rolling direction, the first end 21 of the band 20 is gradually rolled up on the first reel 12; when the second reel 13 rotates toward the second rolling direction, the second end 22 of the band 20 is gradually rolled up on the second reel 13. Further, when the first reel 12 rotates an appropriate number of revolutions toward a first rolling direction and the second reel 13 rotates an appropriate number of revolutions toward a second rolling direction, the band 20 is tightened and the fuel cell stack 1 is tightly bundled.

[0041] It is worth noting that the first rolling direction of the first reel 12 is related to the way the first end 21 of the strap 20 is rolled on the first reel 12. Figures 2 to 5 As shown in the figure, the first end 21 of the strap 20 is wound counterclockwise on the first reel 12, and the first rolling direction of the first reel 12 is clockwise. At this time, the first end 21 of the strap 20 passes between the first reel 12 and the base 11 and is wound on the first reel 12. Similarly, as shown in the figure Figures 2 to 5 As shown, the second end 22 of the strap 20 is wound clockwise on the second reel 13, and the second rolling direction of the second reel 13 is counterclockwise. At this time, the second end 22 of the strap 20 passes between the second reel 13 and the base 11 and is wound on the second reel 13.

[0042] As shown in the attached picture Figures 1 to 11BAs shown, the first reel 12 and the base 11 of the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention form a first through slot 1201 located therebetween, and the second reel 13 and the base 11 form a second through slot 1301 located therebetween, wherein the depth of the first through slot 1201 is greater than the thickness of the first end 21 of the strap 20, and the depth of the second through slot 1301 is greater than the thickness of the second end 22 of the strap 20. Accordingly, the first end 21 of the strap 20 can pass through the first through slot 1201, and the second end 22 of the strap 20 can pass through the second through slot 1301. Preferably, the first end 21 of the strap 20 passes through the first through slot 1201 and the first reel 12 provided on the strap locker 10 from one end of the base 11, and the second end 22 of the strap 20 passes through the second through slot 1301 and the second reel 13 provided on the strap locker 10 from the other end of the base 11. It can be understood that the width of the first through slot 1201 is not less than the width of the first end 21 of the strap 20, and the width of the second through slot 1301 is not less than the width of the second end 22 of the strap 20.

[0043] As shown in the attached picture Figures 1 to 11B As shown, the first reel 12 and the second reel 13 of the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention are arranged at a distance from each other on the base 11, so that the first reel 12 and the second reel 13 form an operation space 101 between the two, so that the first end 21 of the strap 20 and the second end 22 of the strap 20 can be respectively rolled on the first reel 12 and the second reel 13 after passing through the first through slot 1202 and the second through slot 1302 from both ends of the strap locker 10. Accordingly, the first through slot 1202 and the second through slot 1302 are respectively connected to the operation space 101. Optionally, the first end 21 and the second end 22 of the strap 20 can also pass through the operation space 101 between the first reel 12 and the second reel 13 and be respectively rolled on the first reel 12 and the second reel 13.

[0044] It is worth noting that the first end 21 of the strap 20 of the strapping device of the present invention passes through the first through slot 1201 and the first reel 12 disposed on the strap locker 10 from one end of the base 11, and the second end 22 of the strap 20 passes through the second through slot 1301 and the second reel 13 disposed on the strap locker 10 from the other end of the base 11, so that the strap 20 is subjected to more uniform force and is less likely to swing during the tightening process. In particular, it is less likely to affect the bundled fuel cell stack 1.

[0045] As shown in the attached picture Figures 1 to 11BAs shown, the base 11 of the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention comprises a base 111, a first support member 112 and a second support member 113, wherein the first support member 112 and the second support member 113 are arranged separately on the base 111 of the base 11 of the strap locker 10, and the first reel 12 and the second reel 13 are rotatably arranged between the first support member 112 and the second support member 113. It can be understood that the first through slot 1201 is formed between the first reel 12 and the base 111 of the base 11, and the second through slot 1301 is formed between the second reel 13 and the base 111 of the base 11. Therefore, the depth D1 of the first through slot 1201 is substantially the distance between the first reel 12 and the base 111 of the base 11, and the depth D2 of the second through slot 1301 is substantially the distance between the second reel 13 and the base 111 of the base 11. Preferably, the first support member 112 and the second support member 113 of the strap locker 10 are respectively arranged at two opposite edges of the base 111 of the base 11 of the strap locker 10. It can be understood that the first support member 112 and the second support member 113 of the base 11 of the strap locker 10 can be set to a plate shape or other suitable shapes. The base 111 of the strap locker 10 can also be set to a plate shape or other suitable shapes. Further, the first support member 112 and the second support member 113 of the base 11 of the tether locker 10 can be regarded as side walls extending upward from the base 111 of the base 11 of the tether locker 10. Preferably, the inner surface 110 of the base 111 of the base 11 of the tether locker 10 is a plane.

[0046] As shown in the attached picture Figures 1 to 11BAs shown, the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention further includes a first brake member 14 and a second brake member 15, the first reel 12 has a set of first brake grooves 120, and the second reel 13 has a set of second brake grooves 130, wherein the first brake member 14 is configured to selectively engage with the first brake grooves 120; the second brake member 15 is configured to selectively engage with the second brake grooves 130, wherein the first brake member 14 is configured to allow the first reel 12 to rotate in the first rolling direction when the first brake member 14 engages with the first brake grooves 120; and the second brake member 15 is configured to allow the second reel 13 to rotate in the second rolling direction when the second brake member 15 engages with the second brake grooves 130. Furthermore, the first brake member 14 is configured to prevent the first reel 12 from rotating in the first unscrewing direction when the first brake member 14 is engaged with the first brake groove 120; and the second brake member 15 is configured to prevent the second reel 13 from rotating in the second unscrewing direction when the second brake member 15 is engaged with the second brake groove 130, so that when the strap 20 is tightened and the bundling space 201 located between the strap body 23 of the strap 20 and the base 11 of the strap locker 10 is formed, the first brake member 14 and the second brake member 15 prevent the first reel 12 and the second reel 13 from rotating in the opposite direction and prevent the strap 20 from loosening from the first reel 12 and the second reel 13. It can be understood that when the first reel 12 rotates toward the first unscrewing direction, the first end 21 of the strap 20 wound on the first reel 12 will be unscrewed or loosened from the first reel 12; when the second reel 13 rotates toward the second unscrewing direction, the second end 22 of the strap 20 wound on the second reel 13 will be unscrewed or loosened from the second reel 13. Accordingly, the first unscrewing direction of the first reel 12 is opposite to the first rolling direction of the first reel 12, and the second unscrewing direction of the second reel 13 is opposite to the second rolling direction of the second reel 13.

[0047] As shown in the attached picture Figures 2 to 5As shown, the first reel 12 of the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention is arranged on the right side of the second reel 13. Accordingly, when the first reel 12 rotates clockwise, the first reel 12 rolls up the first end 21 of the strap 20 and rolls it counterclockwise on the first reel 12, and when the second reel 13 rotates counterclockwise, the second reel 13 rolls up the second end 22 of the strap 20 and rolls it clockwise on the second reel 13. Accordingly, the clockwise rotation direction of the first reel 12 forms the first rolling direction of the first reel 12, and the counterclockwise rotation direction of the second reel 13 forms the second rolling direction of the second reel 13. Further, the counterclockwise rotation direction of the first reel 12 forms the first unscrewing direction of the first reel 12, and the clockwise rotation direction of the second reel 13 forms the second unscrewing direction of the second reel 13. It can be understood that at this time, the first end 21 of the strap 20 passes through the first through slot 1201 from the right side of the first reel 12 , and the second end 22 of the strap 20 passes through the second through slot 1301 from the left side of the second reel 13 .

[0048] As shown in the attached picture Fig.11A and Fig. 11B As shown, the first reel 12 of the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention has a first slot 1210, the second reel 13 has a second slot 1310, the first end 21 of the strap 20 has a first terminal 211 and a first extension 212 extending from the first terminal 211, the second end 22 of the strap 20 has a second terminal 221 and a second extension 222 extending from the second terminal 221, wherein the first terminal 211 of the first end 21 is configured to be inserted into the first slot 1210 of the first reel 12, The second end 221 of the second end 22 is configured to be inserted into the second slot 1310, so that when the first end 211 of the first end 21 of the strap 20 is inserted into the first slot 1210 of the first reel 12, the second end 221 of the second end 22 is inserted into the second slot 1310, and the first reel 12 rotates in the first rolling direction and the second reel 13 rotates in the second rolling direction, the first extension portion 212 of the first end 21 of the strap 20 and the second extension portion 222 of the second end 22 can be gradually rolled up on the first reel 12 and the second reel 13.

[0049] As shown in the attached picture Figure 4As shown in Figure 7, the first end 211 of the first end 21 of the strap 20 of the bundling device for a fuel cell stack according to an embodiment of the present invention forms a first preset angle with the first extension portion 212, so that when the first end 211 of the first end 21 of the strap 20 is inserted into the first slot 1210 of the first reel 12 and the first reel 12 is rotated in the first rolling direction, the first extension portion 212 of the first end 21 of the strap 20 can be tightly rolled on the first reel 12. Similarly, the second end 221 of the second end 22 of the strap 20 of the strapping device of the present invention forms a second preset angle with the second extension 222, so that when the second end 221 of the second end 22 of the strap 20 is inserted into the second slot 1310 and the second reel 13 rotates in the second rolling direction, the second extension 222 of the second end 22 of the strap 20 can be tightly rolled on the second reel 13. Preferably, both the first preset angle and the second preset angle are not less than sixty degrees.

[0050] As shown in the attached picture Figures 2 to 5 As shown, the first reel 12 of the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention includes a first shaft 121 and a first braking end 122 extending from the first shaft 121, and the second reel 13 includes a second shaft 131 and a second braking end 132 extending from the second shaft 131, wherein the first braking end 122 forms the first braking groove 120 of the first reel 12, and the second braking end 132 forms the second braking groove 130 of the second reel 13. It can be understood that the first end 21 of the strap 20 is suitable for being rolled up on the first shaft 121 of the first reel 12, and the second end 22 of the strap 20 is suitable for being rolled up on the second shaft 131 of the second reel 13.

[0051] As shown in the attached picture Figures 2 to 5 As shown, the first reel 12 of the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention further includes a first drive end 123, and the second reel 13 further includes a second drive end 133, wherein the first shaft 121 extends between the first brake end 122 and the first drive end 123, and the second shaft 131 extends between the second brake end 132 and the second drive end 133, wherein the first drive end 123 is configured to be suitable for being rotated to drive the first reel 12 to rotate in the first rolling direction, and the second drive end 133 is configured to be suitable for being rotated to drive the second reel 13 to rotate in the second rolling direction. Preferably, the first brake end 122 and the first drive end 123 of the first reel 12 are both integrally formed with the first shaft 121, and the second brake end 132 and the second drive end 133 of the second reel 13 are both integrally formed with the second shaft 131.

[0052] As shown in the attached picture Figures 2 to 5 As shown, the first braking end 122 of the first reel 12 of the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention forms a group of first braking teeth 124, and the second braking end 132 of the second reel 13 forms a group of second braking teeth 134, wherein the first braking groove 120 of the first reel 12 is respectively formed between each adjacent two first braking teeth 124, and the second braking groove 130 of the second reel 13 is respectively formed between each adjacent two second braking teeth 134. In other words, the first braking teeth 124 are formed at the first braking end 123 of the first reel 12, and the second braking teeth 134 are formed at the second braking end 133 of the second reel 13, and each adjacent two first braking teeth 124 form a first braking groove 120 located between the two adjacent first braking teeth 124, and each adjacent two second braking teeth 134 form a second braking groove 130 located between the two adjacent second braking teeth 134. Preferably, the first brake tooth 124 of the first reel 12 of the strap locker 10 of the strapping device of the present invention is formed integrally with the first brake end 122 of the first reel 12, and the second brake tooth 134 of the second reel 13 is formed integrally with the second brake end 132 of the second reel 13. Accordingly, the first brake tooth 124 can also be regarded as a separate component provided at the first brake end 122 of the first reel 12, and the second brake tooth 134 can be regarded as a separate component provided at the second brake end 132 of the second reel 13.

[0053] As shown in the attached picture Figures 2 to 10B As shown, each first braking tooth 124 of the first reel 12 of the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention forms a first braking portion 1241 and a first guiding portion 1242 extending obliquely from the first braking portion 1241, and the first braking member 14 forms a first stopper 145 extending horizontally and a first follower portion 146 extending obliquely away from the first reel 12, so that when the first braking member 14 is engaged with the first braking groove 120, and when When the first reel 12 rotates in the first rolling direction, the first guide portion 1242 of the first brake tooth 124 can push the first brake member 14 to move away from the first reel 12 through the first follower portion 146 of the first brake member 14; and when the first reel 12 has a tendency to rotate in the first unscrewing direction, the first stop portion 145 of the first brake member 14 can prevent the first reel 12 from rotating in the first unscrewing direction through the first brake portion 1241 of the first brake tooth 124. Figures 2 to 5As shown, further, the first braking portion 1241 forms a first braking surface 12410, the first guiding portion 1242 forms a first guiding surface 12420, the first stopping portion 145 forms a first stopping surface 1450, and the first driven portion 146 forms a first driven surface 1460, wherein the first braking surface 12410 is perpendicular to the first braking end 122, the first guiding surface 12420 is an inclined surface and an arc surface, the first stopping surface 1450 is parallel to the first braking surface 12410, the first driven surface 1460 is an inclined surface or an arc surface, and when the first braking member 14 is engaged with the first braking groove 120, the first A stop surface 1450 is disposed toward the first braking surface 12410 of the first braking portion 1241, and the first driven surface 1460 is disposed toward the first guide surface 12420 of the first guide portion 1242, so that when the first braking member 14 is engaged with the first braking groove 120, the first braking member 14 can prevent the first braking tooth 124 from rotating in the first unscrewing direction and enable the first braking member 14 to prevent the first reel 12 from rotating in the first unscrewing direction, and the first braking member 14 does not prevent the first braking tooth 124 from rotating in the first rolling direction and enable the first reel 12 to rotate in the first rolling direction. Further, the direction in which the first guide portion 1242 of the first braking tooth 124 extends from the first braking portion 1241 is the same as the first rolling direction, and the first braking tooth 124 of the first reel 12 is formed end to end at the first braking end 122 of the first reel 12. As shown in the attached picture Figures 2 to 5 As shown, correspondingly, in a clockwise direction, the first braking groove 120 of the first reel 12 is formed between the first guide portion 1242 of the previous first braking tooth 124 and the first braking portion 1241 of the next first braking tooth 124 .

[0054] As shown in the attached picture Figures 2 to 5As shown, each second braking tooth 134 of the second reel 13 of the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention forms a second braking portion 1341 and a second guiding portion 1342 extending obliquely from the second braking portion 1341, and the second braking member 15 forms a second stopper 155 extending horizontally and a second driven portion 156 extending obliquely away from the second reel 13, so that when the second braking member 15 is engaged with the second braking groove 130, and when When the second reel 13 rotates in the second rolling direction, the second guide portion 1342 of the second brake tooth 134 can push the second brake member 15 to move away from the second reel 13 through the second follower portion 156 of the second brake member 15; and when the second reel 13 has a tendency to rotate in the first unscrewing direction, the second stop portion 155 of the second brake member 15 can prevent the second reel 13 from rotating in the first unscrewing direction through the second brake portion 1341 of the second brake tooth 134. Figures 2 to 5 As shown, further, the second braking portion 1341 forms a second braking surface 13410, the second guide portion 1342 forms a second guide surface 13420, the second stop portion 155 forms a second stop surface 1550, and the second driven portion 156 forms a second driven surface 1560, wherein the second braking surface 13410 is perpendicular to the second braking end 132, the second guide surface 13420 is an inclined surface and an arc surface, the second stop surface 1550 is parallel to the second braking surface 13410, the second driven surface 1560 is an inclined surface or an arc surface, and when the second braking member 15 is engaged with the second braking groove 130, the second braking member 15 is engaged with the second braking groove 130. The second stop surface 1550 is disposed toward the second brake surface 13410 of the second brake portion 1341, and the second driven surface 1560 is disposed toward the second guide surface 13420 of the second guide portion 1342, so that when the second brake member 15 is engaged with the second brake groove 130, the second brake member 15 can prevent the second brake tooth 134 from rotating in the second unscrewing direction and the second brake member 15 can prevent the second reel 13 from rotating in the second unscrewing direction, and the second brake member 15 does not prevent the second brake tooth 134 from rotating in the second rolling direction and the second reel 13 from rotating in the second rolling direction. Further, the direction in which the second guide portion 1342 of the second brake tooth 134 extends from the second brake portion 1341 is the same as the second rolling direction, and the second brake tooth 134 of the second reel 13 is disposed end to end at the second brake end 132 of the second reel 13. As shown in the attached picture Figures 2 to 5As shown, correspondingly, in a counterclockwise direction, the second braking groove 130 of the second reel 13 is formed between the second guide portion 1342 of the previous second braking tooth 134 and the second braking portion 1341 of the next second braking tooth 134 .

[0055] As shown in the attached picture Figures 2 to 5 As shown, the first braking end 122 of the first reel 12 and the second braking end 132 of the second reel 13 of the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention are respectively arranged on the first support plate 112, and the first driving end 123 of the first reel 12 and the second driving end 133 of the second reel 13 are respectively arranged on the second support plate 113, wherein the first support plate 112 forms a first braking chamber 1121, a second braking chamber 1122, a first retaining cavity 1123 and a second retaining cavity 1124, wherein The first retaining cavity 1123 is connected to the first brake chamber 1121, and the second retaining cavity 1124 is connected to the second brake chamber 1122, wherein the first brake end 122 and the first brake tooth 124 of the first reel 12 are both disposed in the first brake chamber 1121, the second brake end 132 and the second brake tooth 134 of the second reel 13 are both disposed in the second brake chamber 1122, the first brake member 14 is reciprocatably disposed in the first retaining cavity 1123, and the second brake member 15 is reciprocatably disposed in the second retaining cavity 1124. It can be understood that when the first brake member 14 moves along the first retaining cavity 1123 to the first brake chamber 1121, the first brake member 14 can selectively engage with the first brake groove 120 of the first reel 12 to prevent the first reel 12 from rotating in the first unscrewing direction (or rotating in the opposite direction). Similarly, when the second brake member 15 moves along the second retaining cavity 1124 to the second brake chamber 1122, the second brake member 15 can selectively engage with the second brake groove 130 of the second reel 13 to prevent the second reel 13 from rotating in the second unscrewing direction (or rotating in the opposite direction).

[0056] It is worth noting that the first brake member 14 is designed according to the shape and size of the first retaining cavity 1123 to prevent the first brake member 14 from rotating in the first retaining cavity 1123, so that the first brake member 14 cannot engage with the first brake groove 120 of the first reel 12. Similarly, the second brake member 15 is designed according to the shape and size of the second retaining cavity 1124 to prevent the second brake member 15 from rotating in the second retaining cavity 1124, so that the second brake member 15 cannot engage with the second brake groove 130 of the second reel 13. Preferably, the first retaining cavity 1123 and the second retaining cavity 1124 are prismatic. In other words, the first retaining cavity 1123 and the second retaining cavity 1124 are prismatic, the first engaging end 141 of the first brake member 14 is designed according to the shape and size of the first retaining cavity 1123, and the second engaging end 151 of the second brake member 15 is designed according to the shape and size of the second retaining cavity 1124, so as to prevent the first brake member 14 from rotating in the first retaining cavity 1123 and to prevent the second brake member 15 from rotating in the second retaining cavity 1124.

[0057] As shown in the attached picture Figures 2 to 5As shown, the first brake member 14 of the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention includes a first meshing end 141, a first extension end 142 and a first retaining portion 143 extending between the first meshing end 141 and the first extension end 142, the second brake member 15 includes a second meshing end 151, a second extension end 152 and a second retaining portion 153 extending between the second meshing end 151 and the second extension end 152, the first support plate 112 further forms a first reset chamber 1125 and a second reset chamber 1126, wherein the first retaining chamber 1123 is arranged between the first brake chamber 1121 and the first reset chamber 1125, and the first retaining chamber 1123 is further connected to the first reset chamber 1125; the second retaining chamber 1124 is arranged in the second brake chamber 11 22 and the second reset chamber 1126, and the second retaining chamber 1124 is further connected to the second reset chamber 1126, wherein the first engaging end 141 of the first brake member 14 is arranged in the first retaining chamber 1123, and the first retaining portion 143 and the first extended end 142 of the first brake member 14 are arranged in the first reset chamber 1125; the second engaging end 151 of the second brake member 15 is arranged in the second retaining chamber 1124, and the second retaining portion 153 and the second extended end 152 of the second brake member 15 are arranged in the second reset chamber 1126, so that the first brake member 14 is reciprocatingly arranged in the reciprocating channel formed by the first retaining chamber 1123 and the first reset chamber 1125, and the second brake member 15 is reciprocatingly arranged in the reciprocating channel formed by the second retaining chamber 1124 and the second reset chamber 1126. It can be understood that the first meshing end 141 of the first brake member 14 forms the first stop portion 145 and the first follower portion 146 of the first brake member 14 ; the second meshing end 151 of the second brake member 15 forms the second stop portion 155 and the second follower portion 156 of the second brake member 15 .

[0058] As shown in the attached picture Figures 2 to 5As shown, according to the embodiment of the present invention, the diameter of the first retaining portion 143 of the first brake member 14 of the strap locker 10 for the bundling device for the fuel cell stack is larger than the inner diameter of the first retaining cavity 1123, and the diameter of the second retaining portion 153 of the second brake member 15 is larger than the inner diameter of the second retaining cavity 1124, so that the first retaining portion 143 of the first brake member 14 is always retained in the first reset chamber 1125 and the second retaining portion 153 of the second brake member 15 is always retained in the second reset chamber 1126. Correspondingly, the inner diameter of the first reset chamber 1125 is larger than the inner diameter of the first retaining chamber 1123, the inner diameter of the second reset chamber 1126 is larger than the inner diameter of the second retaining chamber 1124, and the diameter of the first retaining portion 143 is not larger than the inner diameter of the first reset chamber 1125, and the diameter of the second retaining portion 153 is not larger than the inner diameter of the second reset chamber 1126, thereby ensuring that the distance of the first brake member 14 toward the first brake chamber 1121 is not greater than a first preset distance, thereby preventing the first brake member 14 from affecting the rotation of the first reel 12 toward the first rolling direction; and ensuring that the distance of the second brake member 15 toward the second brake chamber 1122 is not greater than a second preset distance, thereby preventing the second brake member 15 from affecting the rotation of the second reel 13 toward the second rolling direction.

[0059] As shown in the attached picture Figures 2 to 5As shown, the strap locker 10 for the bundling device of the fuel cell stack according to the embodiment of the present invention further comprises a first reset member 16 and a second reset member 17, wherein the first reset member 16 is arranged between the first retaining portion 143 of the first brake member 14 and the inner wall of the first reset chamber 1125, and the second reset member 17 is arranged between the second retaining portion 153 of the second brake member 15 and the inner wall of the second reset chamber 1126. Further, the first reset member 16 and the second reset member 17 are both reset springs, and the first reset member 16 is sleeved on the first extended end 142 of the first brake member 14, and the second reset member 17 is sleeved on the second extended end 152 of the second brake member 15. Preferably, the outer diameter of the first return member 16 is smaller than the diameter of the first retaining portion 143 of the first brake member 14, and the outer diameter of the second return member 17 is smaller than the diameter of the second retaining portion 153 of the second brake member 15, so that the first return member 16 can be retained between the first retaining portion 143 of the first brake member 14 and the inner wall of the first return chamber 1125, and the second return member 17 can be retained between the second retaining portion 153 of the second brake member 15 and the inner wall of the second return chamber 1126. Accordingly, when the first brake member 14 moves to an engagement position toward the first brake chamber 1121, the first engagement end 141 of the first brake member 14 can selectively engage with the first brake groove 120 of the first reel 12, and at this time, the first brake member 14 can prevent the first reel 12 from rotating in the first unscrewing direction. When the first brake member 14 moves to a disengagement position toward the first return chamber 1125, the first engagement end 141 of the first brake member 14 is disengaged from the first brake groove 120 of the first reel 12, and at this time, the first brake member 14 allows the first reel 12 to rotate in the first rolling direction. Similarly, when the second brake member 15 moves to an engagement position toward the second brake chamber 1122, the second engagement end 151 of the second brake member 15 can selectively engage with the second brake groove 130 of the second reel 13, and at this time, the second brake member 15 can prevent the second reel 13 from rotating in the second unscrewing direction. When the second brake member 14 moves to a disengaged position toward the second reset chamber 1126 , the second engagement end 151 of the second brake member 15 is disengaged from the second brake groove 130 of the second reel 13 . At this time, the second brake member 15 allows the second reel 13 to rotate in the second rolling direction.

[0060] As shown in the attached picture Figures 2 to 9BAs shown, the first support plate 112 of the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention further forms a first retainer 1127 and a second retainer 1128, wherein the first retainer 1127 is screwed to the inner wall of the first reset chamber 1125, and the second retainer 1128 is screwed to the inner wall of the second reset chamber 1126, wherein the first reset member 16 is arranged between the first retaining portion 143 and the first retainer 1127, and the second reset member 17 is arranged between the second retaining portion 153 and the second retainer 1128. In other words, the inner side of the first retainer 1127 forms the inner wall of the first reset chamber 1125, and the inner side of the second retainer 1128 forms the inner wall of the second reset chamber 1126. Furthermore, the first retaining member 1127 forms a first through hole 1420, and the first retaining member 1127 forms a second through hole 1520, wherein the first through hole 1420 is configured to allow the first extended end 142 of the first brake member 14 to pass through the first through hole 1420, and the second through hole 1520 is configured to allow the second extended end 152 of the second brake member 15 to pass through the second through hole 1520.

[0061] It is worth noting that when the first brake member 14 moves toward the first reset chamber 1125, the first reset member 16 is pressed, so that the first reset member 16 generates a reset force that drives the first brake member 14 to move toward the first brake chamber 1121; when the second brake member 15 moves toward the second reset chamber 1126, the second reset member 17 is pressed, so that the second reset member 17 generates a reset force that drives the second brake member 15 to move toward the second brake chamber 1122. Therefore, when the first reel 12 stops rotating, the first brake member 14 moves toward the first brake chamber 1121 and selectively engages with the first brake groove 120 of the first reel 12 under the action of the first reset member 16; when the second reel 13 stops rotating, the second brake member 15 moves toward the second brake chamber 1122 and selectively engages with the second brake groove 130 of the second reel 13 under the action of the second reset member 17.

[0062] As shown in the attached picture Figures 2 to 5As shown, the first reel 12 of the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention further includes a first gear 125, and the second reel 13 further includes a second gear 135, wherein the first gear 125 is arranged at the first driving end 123 of the first reel 12, and the second gear 135 is arranged at the second driving end 133 of the second reel 13, wherein the first gear 125 is arranged to mesh with the second gear 135, and the first driving end 123 of the first reel 12 forms a first driving portion 1231 extending outward from the first gear 125, wherein the first driving portion 1231 is suitable for bearing an external driving force and being driven to rotate, so as to rotate the first reel 12. Further, since the first gear 125 is meshed with the second gear 135, the first gear 125 will drive the second gear 135 to rotate, and the second gear 135 further drives the second reel 13 to rotate. Therefore, the first gear 125 forms a driving gear, and the second gear 135 forms a driven gear. It can be understood that the first gear 125 and the second gear 135 are both arranged on the outside of the second support plate 113. Preferably, the first gear 125 is integrally formed with the first driving end 123, and the second gear 135 is integrally formed with the second driving end 133.

[0063] As shown in the attached picture Figures 2 to 9B As shown, the first brake member 14 of the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention further includes a first stop end 144, and the second brake member 15 further includes a second stop end 145, wherein the first brake end 144 is disposed at the end of the first extended end 142 away from the first retaining portion 143, and the second brake end 154 is disposed at the end of the second extended end 152 away from the second retaining portion 153, wherein the first brake end 144 is retained at the outside of the first retaining member 1127, and the second brake end 144 is retained at the outside of the second retaining member 1128. Preferably, the outer diameter of the first brake end 144 is greater than the first through hole 1420, and the outer diameter of the second brake end 154 is greater than the second through hole 1520.

[0064] As shown in the attached picture Fig.11A and Fig. 11BAs shown, when a user or operator utilizes the bundling device for a fuel cell stack according to an embodiment of the present invention to assemble or bundle the fuel cell stack 1, the strap locker 10 of the bundling device for a fuel cell stack of the present invention can be horizontally placed on the top 2 of the fuel cell stack 1, and the strap body 23 of the strap 20 of the bundling device for a fuel cell stack of the present invention can be arranged below the fuel cell stack 1, so that the user can pull the first end 21 and the second end 22 of the strap 20 toward the base 11 of the strap locker 10. At this time, the first end 211 of the first end 21 of the strap 20 can be guided to be inserted into the first slot 1210 of the first axis 121 of the first reel 12 on the right side of the first reel 12, and the second end 221 of the second end 22 of the strap 20 can be guided to be inserted into the second slot 1310 of the second axis 131 of the second reel 13 on the left side of the second reel 13, and then, the first reel 12 is rotated clockwise and the second reel 13 is rotated counterclockwise, so that the first end 21 of the strap 20 is wound counterclockwise around the first reel 12 and the second end 22 of the strap 20 is wound clockwise around the second reel 13. Subsequently, the first reel 12 is further rotated clockwise and the second reel 13 is further rotated counterclockwise, so that the first end 21 of the strap 20 is tightly wound around the first reel 12 and the second end 22 of the strap 20 is tightly wound around the second reel 13, thereby tightening the strap 20. At this time, the clockwise rotation of the first reel 12 and the counterclockwise rotation of the second reel 13 are stopped, and the first brake member 14 and the second brake member 15 will move toward the first brake chamber 1121 and the second brake chamber 1122 under the action of the first reset member 16 and the second reset member 17, respectively, and engage with the corresponding first brake groove 120 and the second brake groove 130, thereby keeping the first end 21 of the strap 20 tightly wound around the first reel 12 and the second end 22 of the strap 20 tightly wound around the second reel 13. It can be understood that, in the process of rotating the first reel 12 clockwise and the second reel 13 counterclockwise, the first guide portion 1242 of the first braking tooth 124 of the first reel 12 will apply a thrust to the first driven portion 146 of the first meshing end 141 to move the first brake member 14 toward the first reset chamber 1125; the second guide portion 1342 of the second braking tooth 134 of the second reel 13 will apply another thrust to the second driven portion 156 of the second meshing end 151 to move the second brake member 15 toward the second reset chamber 1126.

[0065] As shown in the attached picture Fig.12As shown in FIG. 1 , an optional implementation of the first reel 12 of the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention is illustrated, the first reel 12A is disposed on the base 11, and the first end 21 of the strap 20 is rolled on the first reel 12A. Fig.12 As shown, further, an optional implementation of the second reel 13 of the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention is illustrated, the second reel 13A is arranged on the base 11, and the second end 22 of the strap 20 is rolled on the second reel 13A, so that the strap 20 can be tightened and form a bundling space 201 between the strap body 23 of the strap 20 and the base 11 of the strap locker 10, so that the fuel cell stack 1 is bundled.

[0066] As shown in the attached picture Fig.12 As shown, the first reel 12A of the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention includes a first shaft 121, a first driving end 123 and a first braking end 122, and the second reel 13A includes a second shaft 131, a second driving end 133 and a second braking end 132, wherein the first shaft 121 extends between the first braking end 122 and the first driving end 123, and the second shaft 131 extends between the second braking end 132 and the second driving end 133, wherein the first braking end 122 forms a first braking groove 120, and the second braking end 132 forms a second braking groove 130. It can be understood that the first end 21 of the strap 20 is suitable for being rolled up on the first shaft 121 of the first reel 12A, and the second end 22 of the strap 20 is suitable for being rolled up on the second shaft 131 of the second reel 13A.

[0067] As shown in the attached picture Fig.12 As shown, the first driving end 123A of the first reel 12A of the strap locker 10 of the bundling device for a fuel cell stack according to an embodiment of the present invention forms a first driving portion 1231A, and the second driving end 133A of the second reel 12A forms a second driving portion 1331A, wherein the first driving portion 1231A is suitable for bearing an external driving force and being driven to rotate, so that the first reel 12A rotates, and the second driving portion 1331A is suitable for bearing another external driving force and being driven to rotate, so that the second reel 13A rotates. Preferably, the first driving portion 1231A and the second driving portion 1331A are both arranged on the outside of the second support plate 113 of the base 11 of the strap locker 10, so as to be applied with external force and drive the first reel 12A and the second reel 13A to rotate.

[0068] As shown in the attached picture Fig.13As shown, according to another aspect of the present invention, the present invention further provides an object bundling method, which comprises the following steps:

[0069] (A) Place the object to be tied on top of the strap;

[0070] (B) fixing the two ends of the strap and rolling the strap onto a first reel and a second reel from the two ends of the strap, respectively, wherein the total length of the strap rolled onto the first reel and the second reel is a predetermined length so that the strap can be tied to the object to be tied; and

[0071] (C) The strap having the preset length is wound on the first reel and the second reel, respectively.

[0072] As shown in the attached picture Figure 1 As shown, in a specific application, when the bundling device for a fuel cell stack of the present invention is used to assemble or bundle the fuel cell stack 1, multiple bundling devices can be used to assemble the fuel cell stack 1 according to actual needs. In other words, the number of bundling devices for a fuel cell stack of the present invention used in a fuel cell stack can be flexibly changed according to the needs of the fuel cell stack and / or the user.

[0073] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A bundling device for a fuel cell stack, characterized in that: include: A belt having a first end, a second end, and a belt body extending between the first end and the second end of the belt; and A strap tightener, wherein the strap tightener comprises a base, a first reel and a second reel, wherein the first reel and the second reel are respectively arranged on the base, wherein the first end of the strap is rolled up on the first reel, and the second end of the strap is rolled up on the second reel, so that the strap can be tightened and a bundling space is formed between the strap body and the base of the strap tightener, so that the fuel cell stack is bundled, wherein the first reel of the strap tightener comprises a first gear, and the second reel comprises a second gear, wherein the first gear is arranged at a first driving end of the first reel, and the second gear is arranged at a second driving end of the second reel, wherein the first gear is arranged to mesh with the second gear, and the first driving end of the first reel forms a first driving portion extending outward from the first gear, wherein the first driving portion is suitable for bearing an external driving force and being driven to rotate.

2. The strapping device according to claim 1, characterized in that: The first reel and the base of the strap locker form a first through slot therebetween, and the second reel and the base form a second through slot therebetween, wherein the first end of the strap passes through the first through slot and is rolled up on the first reel, and the second end of the strap passes through the second through slot and is rolled up on the second reel.

3. The strapping device according to claim 1, characterized in that: The first reel and the second reel of the strap locker are respectively rotatably arranged on the base, so that when the first reel rotates in a first rolling direction, the first end of the strap is gradually rolled up on the first reel; and when the second reel rotates in a second rolling direction, the second end of the strap is gradually rolled up on the second reel.

4. The strapping device according to claim 2, characterized in that: The first reel and the second reel of the strap locker are respectively rotatably arranged on the base, so that when the first reel rotates in a first rolling direction, the first end of the strap is gradually rolled up on the first reel; and when the second reel rotates in a second rolling direction, the second end of the strap is gradually rolled up on the second reel.

5. The strapping device according to claim 2, characterized in that: The first reel and the second reel of the belt locker are arranged separately on the base, so that the first reel and the second reel form an operating space located therebetween, wherein the first through slot and the second through slot are respectively connected to the operating space.

6. The strapping device according to claim 4, characterized in that: The first reel and the second reel of the belt locker are arranged separately on the base, so that the first reel and the second reel form an operating space located therebetween, wherein the first through slot and the second through slot are respectively connected to the operating space.

7. The strapping device according to claim 1, characterized in that: The base includes a substrate, a first support member and a second support member, wherein the first support member and the second support member are arranged separately on the substrate of the base of the strap locker, and the first reel and the second reel are rotatably arranged between the first support member and the second support member respectively.

8. The strapping device according to claim 6, characterized in that: The base includes a substrate, a first support member and a second support member, wherein the first support member and the second support member are arranged separately on the substrate of the base of the strap locker, and the first reel and the second reel are rotatably arranged between the first support member and the second support member respectively.

9. The strapping device according to claim 3, characterized in that: The strap locker further includes a first brake member and a second brake member, the first reel having a set of first brake grooves, and the second reel having a set of second brake grooves, wherein the first brake member is configured to engage with the first brake grooves, and the second brake member is configured to engage with the second brake grooves, wherein the first brake member is configured to prevent the first reel from rotating in a first unscrewing direction when the first brake member engages with the first brake grooves, and the second brake member is configured to prevent the second reel from rotating in a second unscrewing direction when the second brake member engages with the second brake grooves.

10. The strapping device according to claim 8, characterized in that: The strap locker further includes a first brake member and a second brake member, the first reel having a set of first brake grooves, and the second reel having a set of second brake grooves, wherein the first brake member is configured to selectively engage with the first brake grooves, and the second brake member is configured to selectively engage with the second brake grooves, wherein the first brake member is configured to prevent the first reel from rotating in a first unscrewing direction when the first brake member is engaged with the first brake grooves, and the second brake member is configured to prevent the second reel from rotating in a second unscrewing direction when the second brake member is engaged with the second brake grooves.

11. The strapping device according to claim 3, characterized in that: The first reel of the strap locker is arranged on the right side of the second reel, the first end of the strap is rolled counterclockwise on the first reel, and the second end of the strap is rolled clockwise on the second reel, so that the clockwise rotation direction of the first reel forms the first rolling direction of the first reel, and the counterclockwise rotation direction of the second reel forms the second rolling direction of the second reel.

12. The strapping device according to claim 10, characterized in that: The first reel of the strap locker is arranged on the right side of the second reel, the first end of the strap is rolled counterclockwise on the first reel, and the second end of the strap is rolled clockwise on the second reel, so that the clockwise rotation direction of the first reel forms the first rolling direction of the first reel, and the counterclockwise rotation direction of the second reel forms the second rolling direction of the second reel.

13. The strapping device according to claim 1, characterized in that: The first reel of the strap locker has a first slot, the second reel has a second slot, the first end of the strap has a first end and a first extension extending from the first end, the second end of the strap has a second end and a second extension extending from the second end, wherein the first end of the first end is configured to be inserted into the first slot of the first reel, and the second end of the second end is configured to be inserted into the second slot.

14. The strapping device according to claim 12, characterized in that: The first reel of the strap locker has a first slot, the second reel has a second slot, the first end of the strap has a first end and a first extension extending from the first end, the second end of the strap has a second end and a second extension extending from the second end, wherein the first end of the first end is configured to be inserted into the first slot of the first reel, and the second end of the second end is configured to be inserted into the second slot.

15. The strapping device according to claim 9, characterized in that: The first reel includes a first shaft, a first braking end and a first driving end, and the second reel includes a second shaft, a second braking end and a second driving end, wherein the first shaft extends between the first braking end and the first driving end, and the second shaft extends between the second braking end and the second driving end, wherein the first driving end is configured to drive the first reel to rotate in the first rolling direction, and the second driving end is configured to drive the second reel to rotate in the second rolling direction.

16. The strapping device according to claim 14, characterized in that: The first reel includes a first shaft body, a first braking end and a first driving end, and the second reel includes a second shaft body, a second braking end and a second driving end, wherein the first shaft body extends between the first braking end and the first driving end, and the second shaft body extends between the second braking end and the second driving end, wherein the first driving end is suitable for being driven to rotate the first reel in the first rolling direction, and the second driving end is suitable for being driven to rotate the second reel in the second rolling direction.

17. The strapping device according to claim 15, characterized in that: The first braking end of the first reel forms a group of first braking teeth, and the second braking end of the second reel forms a group of second braking teeth, wherein the first braking groove of the first reel is respectively formed between each adjacent two first braking teeth, and the second braking groove of the second reel is respectively formed between each adjacent two second braking teeth.

18. The strapping device according to claim 16, characterized in that: The first braking end of the first reel forms a group of first braking teeth, and the second braking end of the second reel forms a group of second braking teeth, wherein the first braking groove of the first reel is respectively formed between each adjacent two first braking teeth, and the second braking groove of the second reel is respectively formed between each adjacent two second braking teeth.

19. The strapping device according to claim 17, characterized in that: Each first braking tooth forms a first braking portion and a first guiding portion extending obliquely from the first braking portion, and each second braking tooth forms a second braking portion and a second guiding portion extending obliquely from the second braking portion, and in a clockwise direction, the first braking groove of the first reel is respectively formed between the first guiding portion of the previous first braking tooth and the first braking portion of the next first braking tooth; In a counterclockwise direction, the second braking groove of the second reel is formed between the second guiding portion of the previous second braking tooth and the second braking portion of the next second braking tooth.

20. The strapping device according to claim 18, characterized in that: Each first braking tooth forms a first braking portion and a first guiding portion extending obliquely from the first braking portion, and each second braking tooth forms a second braking portion and a second guiding portion extending obliquely from the second braking portion, and in a clockwise direction, the first braking groove of the first reel is respectively formed between the first guiding portion of the previous first braking tooth and the first braking portion of the next first braking tooth; In a counterclockwise direction, the second braking groove of the second reel is formed between the second guiding portion of the previous second braking tooth and the second braking portion of the next second braking tooth.

21. The strapping device according to claim 17, characterized in that: Each first braking tooth of the first reel forms a first braking portion and a first guiding portion extending obliquely from the first braking portion, and the first braking member forms a first stopping portion extending horizontally and a first driven portion extending obliquely toward a direction away from the first reel, so that when the first braking member is engaged with the first braking groove and when the first reel rotates toward the first winding direction, the first guiding portion of the first braking tooth can push the first braking member to move away from the first reel through the first driven portion of the first braking member; and when the first reel has a tendency to rotate toward the first unscrewing direction, the first stopping portion of the first braking member can prevent the first reel from rotating toward the first unscrewing direction through the first braking portion of the first braking tooth.

22. The strapping device according to claim 18, characterized in that: Each second braking tooth of the second reel forms a second braking portion and a second guiding portion extending obliquely from the second braking portion, and the second braking member forms a second stopping portion extending horizontally and a second driven portion extending obliquely toward and away from the second reel, so that when the second braking member is engaged with the second braking groove and when the second reel rotates toward the second winding direction, the second guiding portion of the second braking tooth can push the second braking member to move away from the second reel through the second driven portion of the second braking member; and when the second reel has a tendency to rotate toward the second unscrewing direction, the second stopping portion of the second braking member can prevent the second reel from rotating toward the second unscrewing direction through the second braking portion of the second braking tooth.

23. The strapping device according to claim 10, characterized in that: The first reel includes a first shaft, a first braking end and a first driving end, and the second reel includes a second shaft, a second braking end and a second driving end, wherein the first shaft extends between the first braking end and the first driving end, and the second shaft extends between the second braking end and the second driving end, wherein the first braking end of the first reel and the second braking end of the second reel are respectively arranged on a first supporting plate, and the first driving end of the first reel and the second driving end of the second reel are respectively arranged on a second supporting plate , wherein the first support plate forms a first brake chamber, a second brake chamber, a first holding chamber and a second holding chamber, wherein the first holding chamber is communicated with the first brake chamber, and the second holding chamber is communicated with the second brake chamber, wherein the first braking end and the first braking tooth of the first reel are both arranged in the first brake chamber, the second braking end and the second braking tooth of the second reel are both arranged in the second brake chamber, the first braking member is reciprocatably arranged in the first holding chamber, and the second braking member is reciprocatably arranged in the second holding chamber.

24. The strapping device according to claim 19, characterized in that: The first braking end of the first reel and the second braking end of the second reel are respectively arranged on a first supporting plate, and the first driving end of the first reel and the second driving end of the second reel are respectively arranged on a second supporting plate, wherein the first supporting plate forms a first braking chamber, a second braking chamber, a first holding cavity and a second holding cavity, wherein the first holding cavity is connected with the first braking chamber, and the second holding cavity is connected with the second braking chamber, wherein the first braking end and the first braking tooth of the first reel are both arranged in the first braking chamber, and the second braking end and the second braking tooth of the second reel are both arranged in the second braking chamber, the first braking member is reciprocatably arranged in the first holding cavity, and the second braking member is reciprocatably arranged in the second holding cavity.

25. The strapping device according to claim 23, characterized in that: The strap locker further includes a first reset member and a second reset member, the first brake member includes a first meshing end, a first extension end and a first retaining portion extending between the first meshing end and the first extension end, the second brake member includes a second meshing end, a second extension end and a second retaining portion extending between the second meshing end and the second extension end, the first support plate further forms a first reset chamber and a second reset chamber, wherein the first retaining chamber is arranged between the first brake chamber and the first reset chamber, and the first retaining chamber is further connected to the first reset chamber; the second retaining chamber is arranged between the second brake chamber and the second reset chamber, and the second retaining chamber is further connected to the second reset chamber, wherein The first engaging end of the first brake member is arranged in the first retaining cavity, and the first retaining portion and the first extended end of the first brake member are arranged in the first reset chamber; the second engaging end of the second brake member is arranged in the second retaining cavity, and the second retaining portion and the second extended end of the second brake member are arranged in the second reset chamber, the first reset member is arranged between the first retaining portion of the first brake member and the inner wall of the first reset chamber, and the second reset member is arranged between the second retaining portion of the second brake member and the inner wall of the second reset chamber, wherein the first reset member is arranged to provide a reset force to the first brake member toward the first brake chamber, and the second reset member is arranged to provide a reset force to the second brake member toward the second brake chamber.

26. The strapping device according to claim 24, characterized in that: The strap locker further includes a first reset member and a second reset member, the first brake member includes a first meshing end, a first extension end and a first retaining portion extending between the first meshing end and the first extension end, the second brake member includes a second meshing end, a second extension end and a second retaining portion extending between the second meshing end and the second extension end, the first support plate further forms a first reset chamber and a second reset chamber, wherein the first retaining chamber is arranged between the first brake chamber and the first reset chamber, and the first retaining chamber is further connected to the first reset chamber; the second retaining chamber is arranged between the second brake chamber and the second reset chamber, and the second retaining chamber is further connected to the second reset chamber, wherein The first engaging end of the first brake member is arranged in the first retaining cavity, and the first retaining portion and the first extended end of the first brake member are arranged in the first reset chamber; the second engaging end of the second brake member is arranged in the second retaining cavity, and the second retaining portion and the second extended end of the second brake member are arranged in the second reset chamber, the first reset member is arranged between the first retaining portion of the first brake member and the inner wall of the first reset chamber, and the second reset member is arranged between the second retaining portion of the second brake member and the inner wall of the second reset chamber, wherein the first reset member is arranged to provide a reset force to the first brake member toward the first brake chamber, and the second reset member is arranged to provide a reset force to the second brake member toward the second brake chamber.

27. The strapping device according to claim 25, characterized in that: The diameter of the first retaining portion of the first brake member is larger than the inner diameter of the first retaining cavity, and the diameter of the second retaining portion of the second brake member is larger than the inner diameter of the second retaining cavity; the inner diameter of the first reset chamber is larger than the inner diameter of the first retaining cavity, and the inner diameter of the second reset chamber is larger than the inner diameter of the second retaining cavity, and the diameter of the first retaining portion is not larger than the inner diameter of the first reset chamber, and the diameter of the second retaining portion is not larger than the inner diameter of the second reset chamber.

28. The strapping device according to claim 26, characterized in that: The diameter of the first retaining portion of the first brake member is larger than the inner diameter of the first retaining cavity, and the diameter of the second retaining portion of the second brake member is larger than the inner diameter of the second retaining cavity; the inner diameter of the first reset chamber is larger than the inner diameter of the first retaining cavity, and the inner diameter of the second reset chamber is larger than the inner diameter of the second retaining cavity, and the diameter of the first retaining portion is not larger than the inner diameter of the first reset chamber, and the diameter of the second retaining portion is not larger than the inner diameter of the second reset chamber.

29. The strapping device according to claim 25, characterized in that: The first retaining cavity and the second retaining cavity are prismatic, the first engaging end of the first brake member is designed according to the shape and size of the first retaining cavity, and the second engaging end of the second brake member is designed according to the shape and size of the second retaining cavity to prevent the first brake member from rotating in the first retaining cavity and to prevent the second brake member from rotating in the second retaining cavity.

30. The strapping device according to claim 26, characterized in that: The first retaining cavity and the second retaining cavity are prismatic, the first engaging end of the first brake member is designed according to the shape and size of the first retaining cavity, and the second engaging end of the second brake member is designed according to the shape and size of the second retaining cavity to prevent the first brake member from rotating in the first retaining cavity and to prevent the second brake member from rotating in the second retaining cavity.

31. The strapping device according to claim 24, characterized in that: The first gear and the second gear are both arranged on the outer side of the second supporting plate.

32. The strapping device according to any one of claims 1 to 31, characterized in that: The strap is made of metal or alloy material.

33. A method for bundling objects, using the bundling device according to any one of claims 1 to 31, characterized in that: The following steps are involved: (A) Place the object to be tied on top of the strap; (B) fixing the two ends of the strap and rolling the strap on a first reel and a second reel from the two ends of the strap, wherein the total length of the strap rolled on the first reel and the second reel is a preset length so that the strap can be tied to the tied object; and (C) The strap having the preset length is wound on the first reel and the second reel, respectively.

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