Integrated brake structure and tensioner

Abstract

The utility model relates to tensioner technical field discloses an integrated brake structure and tensioner, including casing, ratchet wheel, handle frame and brake pad subassembly, ratchet wheel rotation sets up on the casing, is wound with first bandage on the ratchet wheel, handle frame swing sets up on the casing and has locking position and unlocking position in the swing process, brake pad subassembly includes first brake pad, second brake pad and elastic part, first brake pad is connected on handle frame, second brake pad is connected on first brake pad. The utility model integrates the brake pad subassembly and handle frame into integrated type, has simplified the structure, has reduced production and assembly cost, has realized locking and unlocking function through external force drive handle frame activity, can firmly restrict first bandage back pull in locking position, ensures the goods fixed, can make ratchet wheel be in half locking state in unlocking position, so that first bandage controllably draws out, avoids the risk that first bandage suddenly loses control and bounces back, improves the operation safety.

Description

Technical Field

[0001] This utility model relates to the field of tensioner technology, and more specifically, to an integrated brake structure and tensioner. Background Technology

[0002] Tensioners are key tools for securing goods during transportation, movement, loading, or storage. They prevent goods from falling off through locking and are characterized by safety, reliability, ease of operation, and protection of object surfaces from damage. They are also indispensable tensioning equipment for reinforcing steel formwork and compressed wooden boards.

[0003] Currently, common tensioners on the market typically consist of a housing, a ratchet, and a separate braking system mounted on the housing. This separate braking system mainly comprises a braking component, an operating handle, and a transmission component, all of which are separately mounted on the housing. During operation, external force is required to drive the handle, which then transmits the action to the braking component via the transmission component, thereby braking or unlocking the ratchet. However, this type of separate structure has significant drawbacks: First, its overall structure is complex, with numerous parts, leading to cumbersome assembly processes and high production costs; second, due to the multiple operating steps and long transmission paths, it is prone to safety hazards caused by misoperation in actual use, making reliability difficult to guarantee; furthermore, existing separate braking structures usually only have a single braking point, meaning that braking force is transmitted and borne by only one part, resulting in localized stress concentration at that point, insufficient overall structural strength, and susceptibility to plastic deformation or premature damage during use, severely affecting the service life of the tensioner. Utility Model Content

[0004] To address at least one of the aforementioned problems, this utility model provides an integrated brake structure, comprising a housing, a ratchet, a handle holder, and a brake pad assembly. The ratchet is rotatably mounted on the housing, and a first strap is wound around the ratchet. The handle holder is movably mounted on the housing and has a locked position and an unlocked position during movement. The brake pad assembly includes a first brake pad, a second brake pad, and an elastic element. The first brake pad is connected to the handle holder, and the second brake pad is connected to the first brake pad. When an external force moves the handle holder to the locked position, the elastic element causes the first brake pad to abut against and lock the ratchet, thereby limiting the external force from pulling out the first strap. When the external force moves the handle holder to the unlocked position, the elastic element causes the second brake pad to abut against the ratchet and position the ratchet in a semi-locked state, at which point the external force can pull out the first strap.

[0005] Optionally, the ratchet has multiple teeth along its circumference, and a positioning groove is provided between two adjacent teeth. The first brake pad has a positioning block that engages with the positioning groove, and the second brake pad has an abutment block that abuts against the teeth. When the handle bracket is in the locked position, the elastic element drives the positioning block to engage with the positioning groove to lock the ratchet. When the handle bracket is in the unlocked position, the positioning block disengages from the positioning groove, and the elastic element drives the abutment block to abut against the teeth, so that the ratchet is positioned in the semi-locked state.

[0006] Optionally, the housing is provided with a stop block, and a first stop portion and a second stop portion are respectively provided on both sides of the stop block; when the handle frame is in the locked position, the positioning block abuts against the first stop portion for limiting; when the handle frame is in the unlocked position, the positioning block abuts against the second stop portion for limiting.

[0007] Optionally, the handle bracket is rotatably connected to the housing, the first brake pad is rotatably connected to the handle bracket, the first brake pad is provided with a mounting block, and the housing is provided with a mounting groove for rotatably mounting the mounting block. The mounting groove includes two symmetrically arranged fan-shaped grooves to limit the rotation angle of the mounting block.

[0008] Optionally, the second brake pad is provided with an installation strip, and the first brake pad is provided with an insertion groove that corresponds to the installation strip.

[0009] Optionally, the first brake pad is provided with a pressing handle, the second brake pad is pressed against the side of the first brake pad away from the ratchet, the elastic element is a torsion spring, and the two legs of the torsion spring abut against the handle bracket and the first brake pad respectively.

[0010] Optionally, the torsion spring is bent to provide a limiting protrusion, the first brake pad is provided with a first limiting groove corresponding to the limiting protrusion, and the second brake pad is provided with a second limiting groove corresponding to the limiting protrusion. The limiting protrusion is simultaneously engaged in the first limiting groove and the second limiting groove for limiting.

[0011] Optionally, the housing is provided with a second strap, one end of the first strap is provided with a first buckle, one end of the second strap is provided with a second buckle, and the housing is provided with a coil spring. The spring force drives the ratchet to rotate in the forward direction, so as to retract the first strap.

[0012] Optionally, the housing is provided with a baffle that is movably mounted thereon, and a compression spring is provided between the baffle and the housing. The handle bracket is provided with a pushing part. When the handle bracket is in the locked position, the compression spring drives the baffle to abut against and lock the ratchet. When an external force drives the handle bracket to move from the locked position to the unlocked position, the handle bracket pushes the baffle to disengage from the ratchet through the pushing part.

[0013] Compared to existing technologies, the integrated brake structure in this invention simplifies the structure and reduces production and assembly costs by integrating the brake pad assembly and the handle bracket into one unit. External force drives the handle bracket to move, achieving locking and unlocking functions: in the locked position, it firmly restricts the pullback of the first strap, ensuring cargo fixation; in the unlocked position, the ratchet is in a semi-locked state, allowing the first strap to be pulled out controllably, avoiding the risk of sudden uncontrolled rebound and improving operational safety. When the handle bracket is in the locked position, the positioning block and positioning slot act as the first force point, while the baffle, under the action of a compression spring, abuts and locks the ratchet as the second force point, forming a dual-point support force system. The concentrated stress borne by a single component is effectively distributed to two different structures, reducing the load on each point, thereby alleviating component fatigue and wear, improving the durability of key components such as the first brake pad and baffle, preventing deformation or premature damage, and enhancing the overall reliability of the tensioner under heavy loads and high-frequency use, extending the product's service life.

[0014] In addition, this utility model also provides a tensioner, which includes the above-mentioned integrated brake structure. This tensioner also has the same beneficial effects as the above-mentioned integrated brake structure, which will not be described in detail here. Attached Figure Description

[0015] Figure 1 This is a perspective view of the integrated brake structure handle bracket of this utility model when it is in the locked position.

[0016] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0017] Figure 3 This is a schematic diagram of the integrated brake structure handle bracket of this utility model when it is in the locked position;

[0018] Figure 4 for Figure 3 Enlarged view of section B;

[0019] Figure 5 This is a schematic diagram of the integrated brake pad assembly of the present invention.

[0020] Figure 6 for Figure 5Enlarged view of section C;

[0021] Figure 7 This is an exploded view of the integrated brake structure brake pad assembly of this utility model.

[0022] Figure 8 This is a perspective view of the integrated brake structure handle bracket of this utility model when it is in the unlocked position.

[0023] Figure 9 This is a schematic diagram of the push part of the integrated brake structure of this utility model;

[0024] Figure 10 This is a schematic diagram of the integrated brake structure handle bracket of this utility model when it is in the unlocked position;

[0025] Figure 11 for Figure 10 Enlarged view of section D in the middle;

[0026] The component names corresponding to the various reference numerals in the figure are as follows: 1 is the housing, 101 is the stop block, 1011 is the first stop part, 1012 is the second stop part, 102 is the mounting groove, 2 is the ratchet, 201 is the tooth, 202 is the positioning groove, 3 is the handle bracket, 301 is the pushing part, 4 is the coil spring, 5 is the first strap, 501 is the first buckle, 61 is the first brake pad, 611 is the positioning block, 612 is the mounting block, 613 is the insertion groove, 614 is the pressing handle, 615 is the first limiting groove, 62 is the second brake pad, 621 is the abutment block, 622 is the mounting strip, 623 is the second limiting groove, 63 is the elastic element, 631 is the limiting protrusion, 7 is the baffle, 8 is the compression spring, 9 is the second strap, and 901 is the second buckle. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] In the description of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship when the product is in normal use.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0030] See Figures 1-11This utility model provides an integrated brake structure, including a housing 1, a ratchet 2, a handle bracket 3, and a brake pad assembly. The ratchet 2 is rotatably mounted on the housing 1, and a first strap 5 is wound around the ratchet 2. The handle bracket 3 is movably mounted on the housing 1 and has a locked position and an unlocked position during movement. The brake pad assembly includes a first brake pad 61, a second brake pad 62, and an elastic element 63. The first brake pad 61 is connected to the handle bracket 3, and the second brake pad 62 is connected to the first brake pad 61. When an external force moves the handle bracket 3 to the locked position, the elastic element 63 moves the first brake pad 61 to abut against and lock the ratchet 2, thereby limiting the external force from pulling out the first strap 5. When an external force moves the handle bracket 3 to the unlocked position... When the elastic element 63 drives the second brake pad 62 to abut against the ratchet 2 and position the ratchet 2 in a semi-locked state, the external force can pull out the first strap 5. This utility model simplifies the structure and reduces production and assembly costs by integrating the brake pad assembly and the handle frame 3 into one piece. The external force drives the handle frame 3 to move, realizing the locking and unlocking functions: in the locked position, it can firmly restrict the pullback of the first strap 5 to ensure that the goods are fixed; in the unlocked position, it can make the ratchet 2 in a semi-locked state so that the first strap 5 can be pulled out controllably, avoiding the risk of the first strap 5 suddenly losing control and rebounding, and improving the operational safety; after the first strap 5 is pulled out to a certain length, it is released, at which point the second brake pad 62 is in the elastic element 63.

[0031] Specifically, the brake pad assembly and the handle bracket 3 are integrated into one piece. During assembly, the brake pad assembly is simply assembled onto the handle bracket 3, and then the handle bracket 3 with the brake pad assembly is assembled onto the housing 1. The structure is compact, and the handle bracket 3 can directly drive the brake pad assembly to move together, so that the handle bracket 3 does not need to drive the brake pad assembly through an additional transmission component, reducing the possibility of misoperation, simplifying the structure, reducing the number of parts, saving materials, making assembly faster, and reducing production and assembly costs. When the ratchet 2 is in a semi-locked state, the external force pulls out the first strap 5. At this time, the external force overcomes the resistance of the elastic element 63 acting on the ratchet 2 through the second brake pad 62, so that the ratchet 2 can rotate under the action of the external force, thereby allowing the first strap 5 to be pulled out further.

[0032] See Figure 3 , Figure 4 , Figure 10 and Figure 11The ratchet 2 has multiple protruding teeth 201 along its circumference, and a positioning groove 202 is provided between two adjacent protruding teeth 201. The first brake pad 61 is provided with a positioning block 611 that engages with the positioning groove 202, and the second brake pad 62 is provided with an abutment block 621 that abuts against the protruding teeth 201. When the handle frame 3 is in the locked position, the elastic element 63 drives the positioning block 611 to engage with the positioning groove 202 to lock the ratchet 2. When the handle frame 3 is in the unlocked position, the positioning block 611 disengages from the positioning groove 202, and the elastic element 63 drives the abutment block 621 to abut against the protruding teeth 201, so that the ratchet 2 is positioned in a semi-locked state. When the handle frame 3 is in the locked position, the positioning block 611 engages with the positioning groove 202 to lock the ratchet 2. The slot 202 engages rigidly, preventing the ratchet 2 from rotating and thus preventing the first strap 5 from being pulled out during tightening, ensuring that the first strap 5 remains taut and reliable. When the handle bracket 3 is in the unlocked position, the abutment block 621 on the second brake pad 62 elastically abuts against the protruding tooth 201 of the ratchet 2, forming a semi-locked state. This allows the ratchet 2 to remain in its current position when the first strap 5 is not pulled out by external force, preventing the first strap 5 from rapidly retracting or springing back. This facilitates the operator's binding operations and improves operational safety. At the same time, it allows the first strap 5 to be pulled out further to the required length under external force to meet different binding needs.

[0033] See Figure 1 , Figure 2 and Figure 8 The housing 1 is provided with a stop block 101, and the two sides of the stop block 101 are respectively provided with a first stop part 1011 and a second stop part 1012. When the handle frame 3 is in the locked position, the positioning block 611 abuts against the first stop part 1011 to limit the position, so that in the locked state, the positioning block 611 can be accurately and firmly locked into the positioning groove 202. After locking, the positioning block 611 is not easy to move, thus preventing the positioning block 611 from accidentally disengaging from the locking state with the positioning groove 202, and ensuring reliable use. When the handle frame 3 is in the unlocked position, the positioning block 611 abuts against the second stop part 1012 to limit the position, so that the second stop part 1012 can stop the positioning block 611 from locking into the positioning groove 202, thus preventing the positioning block 611 from interfering with the ratchet 2.

[0034] See Figure 1 and Figure 2The handle bracket 3 is rotatably connected to the housing 1, and the first brake pad 61 is rotatably connected to the handle bracket 3. The first brake pad 61 is provided with a mounting block 612, and the housing 1 is provided with a mounting groove 102 for rotatably mounting the mounting block 612. The mounting groove 102 includes two symmetrically arranged fan-shaped grooves to limit the rotation angle of the mounting block 612. By placing the mounting block 612 of the first brake pad 61 in the mounting groove 102 of the housing 1, a stable rotation fulcrum is established for the entire brake pad assembly, and the swing angle of the first brake pad 61 is strictly limited within the physical range formed by the two symmetrical fan-shaped grooves. This avoids affecting the locking function between the first brake pad 61 and the second brake pad 62 due to excessive rotation of the first brake pad 61, ensuring reliable use.

[0035] See Figure 1 , Figure 2 , Figure 5 and Figure 7 The second brake pad 62 is provided with an installation strip 622, and the first brake pad 61 is provided with an insertion groove 613 corresponding to the installation strip 622, so that the second brake pad 62 can be accurately installed in the predetermined position and form an integral component with the first brake pad 61 to move together. Under the action of the elastic member 63, the second brake pad 62 can undergo a slight elastic displacement relative to the first brake pad 61, thereby realizing the semi-locked state of the second brake pad 62 on the ratchet 2.

[0036] See Figure 1 , Figure 2 and Figure 8 A pressing handle 614 is provided on the first brake pad 61, and the second brake pad 62 is pressed against the side of the first brake pad 61 away from the ratchet 2. The elastic element 63 is a torsion spring, and the two legs of the torsion spring abut against the handle bracket 3 and the first brake pad 61 respectively. External force drives the first brake pad 61 and the second brake pad 62 to rotate by pressing down the pressing handle 614. When the handle bracket 3 needs to be switched from the locked position to the unlocked position, the pressing handle 614 is pressed down by external force to disengage the positioning block 611 of the first brake pad 61 from the corresponding positioning groove 202. At this time, the external force drives the pressing handle 614 to be pressed down to the unlocked position. When the handle bracket 3 is in the unlocked position... When in the unlocked position, pressing down on the handle 614 disengages the second brake pad 62 from the ratchet 2, at which point the ratchet 2 is fully unlocked. The ratchet 2 retracts under the action of the coil spring 4 in the housing 1, pre-tensioning the first strap 5. It should be noted that if the handle 614 is released prematurely during the retraction of the first strap 5, the second brake pad 62 repositions the ratchet 2 to a semi-locked state, allowing adjustment of the length of the first strap 5 as needed. After the first strap 5 is pre-tensioned, external force releases the handle 614, and then the handle bracket 3 is pushed upwards. At this point, the handle bracket 3, through the first brake pad 61, drives the ratchet 2 to rotate forward (forward rotation means...). Figure 10The ratchet 2 rotates clockwise to further tighten the first strap 5. Then, after pressing down the handle bracket 3, the handle bracket 3 is pushed up again to further tighten the first strap 5. This process of pressing down and pushing up the handle bracket 3 is repeated to fully tighten the first strap 5, making it convenient to use.

[0037] See Figures 5-7 The torsion spring is bent to provide a limiting protrusion 631. The first brake pad 61 is provided with a first limiting groove 615 corresponding to the limiting protrusion 631, and the second brake pad 62 is provided with a second limiting groove 623 corresponding to the limiting protrusion 631. The limiting protrusion 631 is simultaneously engaged in the first limiting groove 615 and the second limiting groove 623 for limiting. The first limiting groove 615 and the second limiting groove 623 provide a fixed installation position for the torsion spring, making it difficult for the torsion spring to shift after installation. At the same time, after the limiting protrusion 631 is engaged in the first limiting groove 615 and the second limiting groove 623, it limits the relative position of the first brake pad 61 and the second brake pad 62, ensuring that the two can move as a whole under the drive of the torsion spring, and also providing the necessary small range of movement for the second brake pad 62 to achieve a semi-locking function, thereby ensuring the accuracy and reliability of the coordinated work of the two brake pads.

[0038] See Figure 1 The housing 1 is provided with a second strap 9, one end of the first strap 5 is provided with a first buckle 501, and one end of the second strap 9 is provided with a second buckle 901. The first buckle 501 and the second buckle 901 are provided to form a complete binding loop, so that the tensioner can be flexibly connected and tensioned between two fixed points, realizing the functions of convenient and efficient cargo binding and fixing. The housing 1 is provided with a coil spring 4. The spring force of the coil spring 4 drives the ratchet 2 to rotate in the forward direction, so that the first strap 5 is retracted. The coil spring 4 provides continuous automatic rewinding power to the ratchet 2, which can quickly tighten and automatically retract the first strap 5, improving the operating efficiency.

[0039] See Figure 1 , Figure 3 , Figure 8 , Figure 9 and Figure 10A baffle 7 is movably mounted on the housing 1, and a compression spring 8 is provided between the baffle 7 and the housing 1. A pusher 301 is provided on the handle frame 3. When the handle frame 3 is in the locked position, the compression spring 8 drives the baffle 7 to abut against and lock the ratchet 2. When an external force drives the handle frame 3 from the locked position to the unlocked position, the handle frame 3 pushes the baffle 7 to disengage from the ratchet 2 through the pusher 301. When the handle frame 3 is in the locked position, the baffle 7 automatically engages in a positioning groove 202 of the ratchet 2 under the action of the compression spring 8, providing an additional mechanical lock and effectively preventing the ratchet from reversing and the strap from loosening due to accidental failure of the first brake pad 61 or vibration. When unlocking is required, the push part 301 of the handle bracket 3 will actively push open the baffle 7 to ensure smooth operation. In addition, when the handle bracket 3 is in the locked position, the positioning block 611 engages with the positioning groove 202 as the first force point, and the baffle 7, under the action of the compression spring 8, abuts against and locks the ratchet 2 as the second force point, forming a dual-point support force system. The concentrated stress borne by a single component is effectively distributed to two different structures, reducing the load borne by each point, thereby reducing component fatigue and wear, improving the durability of key components such as the first brake pad 61 and the baffle 7, preventing deformation or premature damage, and enhancing the overall reliability of the tensioner under heavy load and high frequency use, thus extending the product's service life.

[0040] The integrated brake structure of this utility model simplifies the structure and reduces production and assembly costs by integrating the brake pad assembly and the handle bracket into one unit. External force drives the handle bracket 3 to move, achieving locking and unlocking functions: in the locked position, it firmly restricts the pullback of the first strap 5, ensuring the goods are secured; in the unlocked position, it allows the ratchet 2 to be in a semi-locked state, enabling the first strap 5 to be pulled out controllably, avoiding the risk of the first strap 5 suddenly losing control and rebounding, thus improving operational safety; when the handle bracket 3 is in the locked position, the positioning block 611 and the positioning groove 20... The ratchet 2 serves as the first stress point, while the baffle 7, under the action of the compression spring 8, abuts against and locks the ratchet 2 as the second stress point, forming a dual-point support force system. The concentrated stress borne by a single component is effectively distributed to two different structures, reducing the load borne by each point, thereby alleviating component fatigue and wear, improving the durability of key components such as the first brake pad 61 and the baffle 7, preventing deformation or premature damage, and enhancing the overall reliability of the tensioner under heavy load and high-frequency use, thus extending the product's service life.

[0041] In addition, this utility model also provides a tensioner, which includes the above-mentioned integrated brake structure. This tensioner also has the same beneficial effects as the above-mentioned integrated brake structure, which will not be described in detail here.

[0042] In the description of this disclosure, it should be understood that the terms "upper", "lower", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0043] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. An integrated brake structure, characterized in that, The device includes a housing (1), a ratchet (2), a handle holder (3), and a brake pad assembly. The ratchet (2) is rotatably mounted on the housing (1), and a first strap (5) is wound around the ratchet (2). The handle holder (3) is movably mounted on the housing (1) and has a locked position and an unlocked position during movement. The brake pad assembly includes a first brake pad (61), a second brake pad (62), and an elastic element (63). The first brake pad (61) is connected to the handle holder (3), and the second brake pad (62) is connected to... On the first brake pad (61); when the external force drives the handle bracket (3) to the locked position, the elastic element (63) drives the first brake pad (61) to abut and lock the ratchet (2) to limit the external force from pulling out the first strap (5); when the external force drives the handle bracket (3) to the unlocked position, the elastic element (63) drives the second brake pad (62) to abut the ratchet (2) and position the ratchet (2) in a semi-locked state, at which time the external force can pull out the first strap (5).

2. The integrated brake structure according to claim 1, characterized in that, The ratchet (2) has multiple protruding teeth (201) along its circumference, and a positioning groove (202) is provided between two adjacent protruding teeth (201). The first brake pad (61) is provided with a positioning block (611) that is movably engaged with the positioning groove (202), and the second brake pad (62) is provided with an abutment block (621) that movably abuts against the protruding teeth (201). When the handle frame (3) is in the locked position, the elastic element (63) drives the positioning block (611) to engage with the positioning groove (202) to lock the ratchet (2). When the handle frame (3) is in the unlocked position, the positioning block (611) disengages from the positioning groove (202), and the elastic element (63) drives the abutment block (621) to abut against the protruding teeth (201) so that the ratchet (2) is positioned in the semi-locked state.

3. The integrated brake structure according to claim 2, characterized in that, The housing (1) is provided with a stop block (101), and a first stop part (1011) and a second stop part (1012) are respectively provided on both sides of the stop block (101). When the handle frame (3) is in the locked position, the positioning block (611) abuts against the first stop part (1011) to limit the position. When the handle frame (3) is in the unlocked position, the positioning block (611) abuts against the second stop part (1012) to limit the position.

4. The integrated brake structure according to claim 1, characterized in that, The handle bracket (3) is rotatably connected to the housing (1), the first brake pad (61) is rotatably connected to the handle bracket (3), the first brake pad (61) is provided with a mounting block (612), the housing (1) is provided with a mounting groove (102) for rotatably mounting the mounting block (612), the mounting groove (102) includes two symmetrically arranged fan-shaped grooves to limit the rotation angle of the mounting block (612).

5. The integrated brake structure according to claim 1, characterized in that, The second brake pad (62) is provided with an installation strip (622), and the first brake pad (61) is provided with an insertion groove (613) that corresponds to the installation strip (622).

6. The integrated brake structure according to claim 1, characterized in that, The first brake pad (61) is provided with a pressing handle (614), and the second brake pad (62) is pressed against the side of the first brake pad (61) away from the ratchet (2). The elastic element (63) is a torsion spring, and the two legs of the torsion spring abut against the handle bracket (3) and the first brake pad (61) respectively.

7. The integrated brake structure according to claim 6, characterized in that, The torsion spring is bent and has a limiting protrusion (631). The first brake pad (61) is provided with a first limiting groove (615) corresponding to the limiting protrusion (631). The second brake pad (62) is provided with a second limiting groove (623) corresponding to the limiting protrusion (631). The limiting protrusion (631) is simultaneously inserted into the first limiting groove (615) and the second limiting groove (623) for limiting.

8. The integrated brake structure according to claim 1, characterized in that, The housing (1) is provided with a second strap (9), one end of the first strap (5) is provided with a first buckle (501), one end of the second strap (9) is provided with a second buckle (901), and the housing (1) is provided with a coil spring (4). The ratchet (2) is driven to rotate in the forward direction by the elastic force of the coil spring (4) so ​​that the first strap (5) is retracted.

9. The integrated brake structure according to any one of claims 1-8, characterized in that, A baffle (7) is movably mounted on the housing (1), and a compression spring (8) is provided between the baffle (7) and the housing (1). A pusher (301) is provided on the handle frame (3). When the handle frame (3) is in the locked position, the compression spring (8) drives the baffle (7) to abut against and lock the ratchet (2). When an external force drives the handle frame (3) to move from the locked position to the unlocked position, the handle frame (3) pushes the baffle (7) to disengage from the ratchet (2) through the pusher (301).

10. A tensioner, characterized in that, Includes the integrated brake structure as described in any one of claims 1-9.

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