Tensioner with belt stopping structure

Abstract

The utility model relates to the field of tensioners, and discloses a tensioner with a belt stopping structure, a tensioning piece is movably arranged between the inner walls of the left end and the right end of a fixing plate and the inner wall of the left end and the right end of a driving plate, a plurality of sets of pawls distributed in an annular mode are arranged on the tensioning piece, and a limiting plate and a shifting piece are both connected with the pawls in an abutting mode. Two sets of belt stopping structures are arranged outside the driving plate in a bilateral symmetry mode, the belt stopping structures are connected with the tensioning pieces and the fixing plate, a winding shaft is inserted between the two tensioning pieces and comprises two sets of symmetrically-distributed half-moon-shaped plates, a gap is formed between the two half-moon-shaped plates, and the left end and the right end of the winding shaft penetrate through round holes to be arranged outside the driving plate. The belt stopping structures are arranged at the left end and the right end of the driving plate, the driving plate, the tensioning piece and the fixing plate can be connected into a whole through the belt stopping structures according to needs, the driving plate, the tensioning piece and the fixing plate cannot be unfolded, separation caused by misoperation is avoided, loosening and falling of a cloth belt are avoided, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of tensioners, in particular to a tensioner with a stop belt structure. Background Art

[0002] A tensioner is a device used to secure and tighten objects. It is widely used in the transportation, movement, shipment or storage of goods to ensure the safe fixation of objects and prevent them from falling off or being damaged.

[0003] The current tensioner generally includes a driving plate, a gripping plate, an upper pressure plate arranged on the driving plate, a lower pressure plate of the gripping plate, and a ratchet between the driving plate and the gripping plate. The ratchet is provided with a fixing rod for fixing the cloth belt. When the object is tightened and fixed, the two ends of the rope pass through the fixing rod on the ratchet. At this time, the driving plate is continuously rotated back and forth, and the upper pressure plate on the driving plate drives the ratchet to rotate. The lower pressure plate is used to limit the ratchet, so that the ratchet can only rotate in one direction when the upper pressure plate moves, and the ratchet continuously pulls the rope, and finally fixes the rope to a length that matches the object, thereby completing the working process of the tensioner.

[0004] When the tensioner unwinds the rope, it moves the drive plate and grip plate away from each other. At this point, the upper and lower pressure plates disengage from the ratchet, releasing their position limits and allowing them to rotate in the opposite direction, facilitating rope unwinding. Existing tensioners lack a corresponding stop-belt limiting structure. If the drive plate and grip plate move away from each other due to shaking or misoperation, the upper and lower pressure plates can easily rotate, causing the rope to fall off and, in turn, the transported object to fall. To address this, we designed a tensioner with a stop-belt structure. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a tensioner with a stopper structure.

[0006] The utility model adopts the following technical solution: a tensioner with a stopper structure, comprising a driving plate, wherein the left and right sides of the driving plate penetrate to form a first slide groove, wherein a toggle piece is provided in the first slide groove for sliding up and down, and a fixed plate is provided for rotation inside the front side of the driving plate, wherein the fixed plate penetrates to form a second slide groove, wherein a limit plate is provided in the second slide groove for sliding up and down;

[0007] Circular holes are formed on the left and right sides of the fixed plate and the driving plate, and a tensioning member is movably provided between the inner walls of the left and right ends of the fixed plate and the driving plate. The tensioning member is provided with multiple groups of ratchet claws distributed in an annular manner, and the limit plate and the toggle member are in contact with the ratchet claws. Two groups of stop belt structures are symmetrically provided on the outside of the driving plate, and the stop belt structures are connected to the tensioning member and the fixed plate;

[0008] A winding shaft is inserted between the two tensioning members, and the winding shaft includes two groups of symmetrically distributed menisci, and there is a gap between the two menisci. The cloth belt can be wound around the winding shaft through the gap. The left and right ends of the winding shaft pass through the circular holes and are placed outside the driving plate.

[0009] As a further improvement to the above solution, an abutment plate is provided on the upper part of the driving plate, and a sleeve plate with an L-shaped structure is integrally formed on the rear side of the toggle member. A downward pressure spring is sleeved on the sleeve plate, and the upper end of the downward pressure spring abuts against the lower surface of the abutment plate, so that the toggle member has a tendency to move downward, thereby causing the lower end of the toggle member to contact the pawl of the tensioning member, limiting it so that it can only rotate in one direction;

[0010] An opening one is provided above the abutting plate, and the opening one is located directly above the sleeve plate. When the toggle member moves upward, the sleeve plate can move up and down through the opening one, thereby facilitating the up and down movement of the toggle member.

[0011] As a further improvement to the above solution, a back plate is integrally formed on the front side of the fixing plate, a locking spring is sleeved on the upper side of the limiting plate, and the top end of the locking spring abuts against the lower side of the back plate, so that the limiting plate has a tendency to move downward, thereby being able to contact and limit the pawl of the tensioning member, causing it to move in the next direction;

[0012] The back plate is provided with an opening 2, the limiting plate protrudes to form a long plate, and the opening 2 is located directly above the long plate. When the limiting plate moves upward, the long plate can move up and down through the opening 2, which facilitates the up and down movement of the limiting plate.

[0013] As a further improvement of the above-mentioned scheme, the stop belt structure includes a mounting sleeve fixed on the side of the driving plate, and the mounting sleeve cavity is arranged to form a movable cavity. The movable cavity is sleeved with limit rods on the left and right sides, and the limit rod passes through the mounting sleeve on the side away from the driving plate and is placed outside it. An abutment ring is provided on the limit rod, and a pressure spring is sleeved on the limit rod. The pressure spring is placed between the abutment ring and the inner wall of the movable cavity. The pressure spring makes the limit rod have a tendency to move inward, thereby enabling it to connect the driving plate, the tensioning member and the fixed plate into one, so that they will not be separated due to misoperation, thereby avoiding the loosening of the cloth belt.

[0014] As a further improvement of the above solution, a threaded hole is provided on the side of the mounting sleeve away from the driving plate, and the threaded hole is connected to the movable cavity. The limiting rod is placed on the outside of the mounting sleeve through the threaded hole, and the limiting rod is also provided with a threaded portion connected to the threaded hole. After the threaded portion is threadedly connected to the threaded hole, the tail end of the limiting rod will be inserted into the fixed plate, thereby connecting the driving plate, the tensioning member and the fixed plate into one.

[0015] As a further improvement of the above scheme, two groups of plug-in holes are symmetrically opened on the outside of the driving plate, and the plug-in holes extend inward to penetrate the fixed plate to form locking holes. The tensioning member is provided with a plurality of limiting holes distributed in a ring shape, and the number of the limiting holes matches the number of pawls. No matter what position the tensioning part is in, the locking hole, the plug-in hole and the limiting hole can overlap, thereby facilitating the fixing of the limiting rod to it.

[0016] As a further improvement of the above solution, the limit hole is chamfered at the edge of one side near the driving plate to form an arcuate surface, and a spherical head is provided at the end of the limit rod away from the threaded portion. The cross-section of the spherical head is a semicircular structure. When the threaded portion is not connected to the threaded hole, the spherical head is placed in the limit hole and close to the arcuate surface. At this time, the limit rod can slide left and right, and the tensioning member can rotate normally. After each rotation of a certain angle, the spherical head will be stuck in the limit hole, and then disconnected again, thereby reducing its speed. When the cloth belt is unfolded, it can prevent surrounding personnel from being accidentally injured by the exposed end of the cloth belt that is quickly pulled back by inertia.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The utility model sets stopper structures on the left and right ends of the driving plate. The stopper structures can connect the driving plate, the tensioning member and the fixing plate as needed, making them unable to unfold and prevent them from being separated due to misoperation, thus avoiding the loosening of the cloth belt and improving safety.

[0019] 2. The limit rod of the stop belt structure can connect the driving plate, the tensioning member and the fixing plate as needed, and it can be placed in the limit hole and close to the curved surface, and can slide left and right. The tensioning member can rotate normally, and after each rotation of a certain angle, the spherical head will be stuck in the limit hole and then disconnected again, thereby reducing its speed. When the cloth belt is unfolded, it can prevent people around from being accidentally injured by the exposed end of the cloth belt that is quickly pulled back by inertia. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a tensioner with a stop belt structure provided by the utility model;

[0021] Figure 2 for Figure 1 Schematic diagram of the structure of the middle fixed plate;

[0022] Figure 3 for Figure 1 Schematic diagram of the structure of the middle drive board;

[0023] Figure 4 for Figure 1 sectional view of

[0024] Figure 5 for Figure 4 Schematic diagram of the structure enlarged at point A in the middle.

[0025] Description of main symbols:

[0026] 1. Drive plate; 11. Slide groove 1; 12. Abutment plate; 13. Plug-in hole; 2. Toggle member; 21. Pressing spring; 22. Socket plate; 3. Fixed plate; 31. Back plate; 32. Slide groove 2; 33. Locking hole; 4. Limiting plate; 41. Locking spring; 5. Winding shaft; 6. Stop band structure; 61. Limiting rod; 62. Threaded portion; 63. Mounting sleeve; 64. Abutment ring; 65. Pressure spring; 66. Spherical head; 7. Tensioning member; 71. Ratchet; 72. Limiting hole. DETAILED DESCRIPTION

[0027] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] Example:

[0029] Please combine Figure 1-Figure 5 The present embodiment is a tensioner with a stopper structure, comprising a driving plate 1, a sliding groove 11 is formed through the left and right sides of the driving plate 1, a toggle member 2 is provided in the sliding groove 11 for sliding up and down, a fixed plate 3 is provided in the front side of the driving plate 1 for rotation, the fixed plate 3 is penetrated to form a sliding groove 2 32 on the left and right sides, and a limit plate 4 is provided in the sliding groove 32 for sliding up and down;

[0030] Circular holes are formed on the left and right sides of the fixed plate 3 and the lower part of the driving plate 1. A tensioning member 7 is movably provided between the inner walls of the left and right ends of the fixed plate 3 and the driving plate 1. The tensioning member 7 is provided with multiple groups of ratchet claws 71 distributed in an annular pattern. The limit plate 4 and the toggle member 2 are in contact with the ratchet claws 71. Two groups of stopper structures 6 are symmetrically provided on the outside of the driving plate 1. The stopper structure 6 is connected to the tensioning member 7 and the fixed plate 3.

[0031] A winding shaft 5 is inserted between the two tensioning members 7. The winding shaft 5 includes two groups of symmetrically distributed menisci, and there is a gap between the two menisci. The cloth belt can be wound around the winding shaft 5 through the gap. The left and right ends of the winding shaft 5 pass through the circular holes and are placed on the outside of the driving plate 1.

[0032] An abutment plate 12 is provided on the upper part of the driving plate 1, and an L-shaped sleeve plate 22 is integrally formed on the rear side of the toggle member 2. A downward pressure spring 21 is sleeved on the sleeve plate 22. The upper end of the downward pressure spring 21 abuts against the lower surface of the abutment plate 12, so that the toggle member 2 has a tendency to move downward, and then the lower end of the toggle member 2 contacts the pawl 71 of the tensioning member 7, limiting it so that it can only rotate in one direction;

[0033] An opening one is provided above the abutting plate 12 , and the opening one is located directly above the sleeve plate 22 . When the toggle member 2 moves upward, the sleeve plate 22 can pass through the opening one and move up and down, thereby facilitating the up and down movement of the toggle member 2 .

[0034] A back plate 31 is integrally formed on the front side of the fixing plate 3. A locking spring 41 is sleeved on the upper side of the limiting plate 4. The top end of the locking spring 41 abuts against the lower side of the back plate 31, causing the limiting plate 4 to have a tendency to move downward, thereby being able to contact the pawl 71 of the tensioning member 7 and limit it, causing it to move in the next direction.

[0035] The back plate 31 is provided with an opening 2, and the limiting plate 4 protrudes to form a long plate. The opening 2 is located directly above the long plate. When the limiting plate 4 moves upward, the long plate can pass through the opening 2 and move up and down, facilitating the up and down movement of the limiting plate 4.

[0036] The stop belt structure 6 includes a mounting sleeve 63 fixed to the side of the driving plate 1. The cavity of the mounting sleeve 63 is arranged to form a moving cavity. The limiting rods 61 are sleeved on the left and right sides of the moving cavity. The limiting rod 61 passes through the mounting sleeve 63 and is placed outside the driving plate 1. An abutment ring 64 is provided on the limiting rod 61. A pressure spring 65 is sleeved on the limiting rod 61. The pressure spring 65 is placed between the abutment ring 64 and the inner wall of the moving cavity. The pressure spring 65 makes the limiting rod 61 tend to move inward, thereby enabling it to connect the driving plate 1, the tensioning member 7 and the fixing plate 3 into one, so that they will not be separated due to misoperation, thereby avoiding the loosening of the cloth belt.

[0037] A threaded hole is provided on the side of the mounting sleeve 63 away from the driving plate 1, and the threaded hole is connected to the movable cavity. The limiting rod 61 is placed on the outside of the mounting sleeve 63 through the threaded hole, and the limiting rod 61 is also provided with a threaded portion 62 connected to the threaded hole. After the threaded portion 62 is threadedly connected to the threaded hole, the tail end of the limiting rod 61 will be inserted into the fixing plate 3, thereby connecting the driving plate 1, the tensioning member 7 and the fixing plate 3 as one.

[0038] Two groups of plug holes 13 are symmetrically provided on the outside of the driving plate 1, and the plug holes 13 extend inwardly through the fixing plate 3 to form locking holes 33. The tensioning member 7 is provided with a plurality of limiting holes 72 distributed in a ring shape. The number of the limiting holes 72 matches the number of the pawls 71. No matter what position the tensioning part is in, the locking hole 33, the plug hole 13 and the limiting hole 72 can all overlap, thereby facilitating the fixing of the limiting rod 61 thereto.

[0039] The limiting hole 72 is chamfered at the edge of one side near the driving plate 1 to form an arcuate surface. A spherical head 66 is provided at the end of the limiting rod 61 away from the threaded portion 62. The cross-section of the spherical head 66 is a semicircular structure. When the threaded portion 62 is not connected to the threaded hole, the spherical head 66 is partially placed in the limiting hole 72 and close to the arcuate surface. At this time, the limiting rod 61 can slide left and right, and the tensioning member 7 can rotate normally. After each rotation of a certain angle, the spherical head 66 will be stuck in the limiting hole 72, and then disconnected again, thereby reducing its speed. When the cloth belt is unfolded, it can prevent people around from being accidentally injured by the exposed end of the cloth belt that is quickly pulled back by inertia.

[0040] The implementation principle of the tensioner with a stopper structure in the embodiment of the present application is as follows: in actual use, the limiting rod 61 is first rotated counterclockwise so that the threaded portion 62 of the limiting rod 61 is completely disengaged from the threaded hole. At this time, the spherical head 66 is partially placed in the limiting hole 72 and close to the arc surface. The limiting rod 61 can slide left and right, and the tensioning member 7 can rotate normally. After each rotation of a certain angle, the spherical head 66 will be stuck in the limiting hole 72, and then disconnected again. Then, the driving plate 1 and the fixing plate 3 are spread apart from each other, and then the cloth belt can be inserted into the gap between the two menisci.

[0041] Then, when the driving plate 1 is toggled, the toggle member 2 will push the pawl 71 to rotate backward during the backward movement of the driving plate 1, thereby causing the winding shaft 5 to rotate synchronously. Then, when the driving plate 1 is toggled forward, the pawl 71 is prevented from being deflected forward by the action of the limit plate 4. When the toggle member 2 moves forward, it will move forward along the arc surface of the pawl 71 for an end distance and get stuck in front of a pawl 71 again. Then it can be toggled backward again. Repeating this process can make the cloth belt be wound around the winding shaft 5, thereby keeping it in a taut state.

[0042] After the tension is completed, the limiting rod 61 is pressed inward and rotated clockwise, and the threaded portion 62 can be threadedly connected in the threaded hole and moved inward, so that the limiting rod 61 is inserted into the limiting hole 72 and the locking hole 33, thereby connecting the driving plate 1, the tensioning member 7 and the fixing plate 3 as a whole, making it impossible to unfold and prevent them from separating due to misoperation, thereby preventing the cloth belt from loosening;

[0043] When the cloth belt needs to be unfolded, the limiting rod 61 is rotated counterclockwise so that the threaded portion 62 is not connected to the threaded hole. The spherical head 66 is partially placed in the limiting hole 72 and close to the arc surface. At this time, the limiting rod 61 can slide left and right, and the tensioning member 7 can rotate normally. After each rotation of a certain angle, the spherical head 66 will be stuck in the limiting hole 72 and then disconnected again, thereby reducing its speed. When the cloth belt is unfolded, people around are prevented from being accidentally injured by the exposed end of the cloth belt that is quickly pulled back by inertia.

[0044] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A tensioner with a stopper structure, characterized in that: The invention comprises a driving plate (1), wherein the left and right sides of the driving plate (1) are penetrated to form a first slide groove (11), wherein a toggle member (2) is provided in the first slide groove (11) for sliding up and down, and a fixed plate (3) is provided in the front side of the driving plate (1) for rotation, wherein the fixed plate (3) is penetrated to form a second slide groove (32) on the left and right sides, and a limit plate (4) is provided in the second slide groove (32) for sliding up and down; Circular holes are formed on the left and right sides of the fixing plate (3) and the driving plate (1); a tensioning member (7) is movably provided between the inner walls of the left and right ends of the fixing plate (3) and the driving plate (1); a plurality of groups of ratchet claws (71) distributed in an annular shape are provided on the tensioning member (7); the limiting plate (4) and the toggle member (2) are in contact with the ratchet claws (71); two groups of stopper structures (6) are symmetrically provided on the outside of the driving plate (1); the stopper structures (6) are connected to the tensioning member (7) and the fixing plate (3); A winding shaft (5) is inserted between the two tensioning members (7), and the winding shaft (5) includes two groups of symmetrically distributed menisci, with a gap between the two menisci. The left and right ends of the winding shaft (5) pass through the circular holes and are placed outside the driving plate (1).

2. A tensioner with a stopper structure according to claim 1, characterized in that: An abutment plate (12) is provided above the interior of the driving plate (1), and a sleeve plate (22) having an L-shaped structure is integrally formed on the rear side of the toggle member (2), a downward pressure spring (21) is sleeved on the sleeve plate (22), and the upper end of the downward pressure spring (21) abuts against the lower surface of the abutment plate (12); An opening 1 is provided above the abutting plate (12), and the opening 1 is located directly above the sleeve plate (22).

3. The tensioner with a stopper structure according to claim 1, characterized in that: The front side of the fixing plate (3) is integrally formed with a back plate (31), the upper portion of the limiting plate (4) is sleeved with a locking spring (41), and the top end of the locking spring (41) abuts against the lower portion of the back plate (31); The back plate (31) is provided with a second opening, the limiting plate (4) protrudes to form a long plate, and the second opening is located directly above the long plate.

4. The tensioner with a stopper structure according to claim 1, characterized in that: The stopper structure (6) comprises a mounting sleeve (63) fixed to the side of the driving plate (1); a cavity of the mounting sleeve (63) is arranged to form a movable cavity; limit rods (61) are sleeved on the left and right sides of the movable cavity; the limit rod (61) passes through the mounting sleeve (63) on the side away from the driving plate (1) and is placed outside the limit rod (61); an abutment ring (64) is provided on the limit rod (61); a pressure spring (65) is sleeved on the limit rod (61); and the pressure spring (65) is placed between the abutment ring (64) and the inner wall of the movable cavity.

5. The tensioner with a stopper structure according to claim 4, characterized in that: A threaded hole is provided on the side of the mounting sleeve (63) away from the driving plate (1), and the threaded hole is communicated with the moving cavity. The limiting rod (61) is placed outside the mounting sleeve through the threaded hole, and the limiting rod (61) is also provided with a threaded portion (62) connected to the threaded hole.

6. The tensioner with a stopper structure according to claim 5, characterized in that: The driving plate (1) is provided with two groups of plug holes (13) symmetrically on the outside, and the plug holes (13) extend inwardly through the fixing plate (3) to form locking holes (33). The tensioning member (7) is provided with a plurality of limiting holes (72) distributed in an annular shape, and the number of the limiting holes (72) matches the number of the pawls (71).

7. The tensioner with a stopper structure according to claim 6, characterized in that: The edge of the limiting hole (72) close to one side of the driving plate (1) is rounded to form an arcuate surface. The limiting rod (61) is provided with a spherical head (66) at one end away from the threaded portion (62). The cross section of the spherical head (66) is a semicircular structure. When the threaded portion (62) is not connected to the threaded hole, the spherical head (66) is partially placed in the limiting hole (72) and close to the arcuate surface.

Images