Ratchet tensioner

Abstract

The utility model discloses a ratchet tensioner, which relates to the field of tensioning tools, and adopts the technical scheme that the ratchet tensioner comprises a tensioner main body which is of a cylindrical structure; the tensioning connecting assemblies are arranged at the two ends of the tensioner body respectively; the number of the hooks is two, and the hooks are connected with the tensioner body through the tensioning connecting assembly. The tensioning operation piece is connected with the tensioner main body and is linked with the tensioning connection assembly; the hook tightening assembly is in linkage with the hook and can drive the hook to move towards the middle of the tensioner body. The utility model has the beneficial effects that through the structure of the scheme, under the condition that the tightener realizes conventional tensioning, the hook can be further limited by virtue of the hook tightening assembly, so that the tight connection between the hook and the hooking position of a pulled object is ensured. And the traction direction of the hook tightening assembly to the hook is different from the conventional tightening direction, so that the hook can be well ensured not to be easily separated when the hung object moves, and the use safety of the tightener is improved.

Description

Technical Field

[0001] The utility model relates to the field of tensioning tools, in particular to a ratchet tensioner. Background Art

[0002] A tensioner is a tool used to tighten ropes, chains or cables. It can fix cargo during transportation, movement, shipment or storage. After the cargo is locked by the tight rigging, it is not easy for the cargo to fall off. The tight rigging is widely used in many fields such as ports, railways, and construction.

[0003] The existing ratchet tensioner can tighten the hooks on both sides by means of the linkage structure of the ratchet pawl. However, this type of existing tensioner does not have a limit function for the position of the hook. In other words, after the hook is connected, it is only connected by the structure of the hook and the object itself. This leads to the problem that the hook may be separated from the hung position, especially after the tensioner is tightened, when the tensioner moves with the goods, if the hook is separated, a safety accident will occur. Utility Model Content

[0004] In view of one of the deficiencies of the prior art, the utility model provides a ratchet tensioner to solve the problem of further ensuring the safety of the tightened object.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ratchet tensioner, comprising:

[0006] The tensioner body is a cylindrical structure;

[0007] The tensioning connection components are respectively arranged at two ends of the tensioner body;

[0008] Two hooks are provided and connected to the tensioner body through a tensioning connection assembly;

[0009] A tensioning operating member connected to the tensioner body and linked with the tensioning connection assembly to move the tensioning connection assemblies at both ends closer or farther away;

[0010] The hook tightening assembly is linked with the hook and can drive the hook to move toward the middle of the tensioner body.

[0011] Preferably, the tightening connection assembly comprises:

[0012] The tensioning piece comprises a tensioning hanging ring, a screw rod is arranged on one side of the tensioning hanging ring, and the tensioning piece is threadedly connected to the tensioner body through the screw rod;

[0013] The chain link is an annular structure, which is connected to the tensioning member and the hook respectively.

[0014] Preferably, the hook comprises:

[0015] The hook body is a hook-shaped structure used to hook the tightened object;

[0016] The first connecting portion is annular and is used to connect with the chain ring;

[0017] The second connecting portion is arranged on the hook body and is used to connect with the hook tightening assembly.

[0018] Preferably, the second connecting portion comprises:

[0019] The through hole is a through hole that penetrates the hook body, and its penetration position is a position where the hook body is far away from the first connecting portion.

[0020] Preferably, the second connecting portion further includes:

[0021] A reinforcing block is symmetrically arranged on both sides of the hook body; the reinforcing block is arranged on the outer side of the through hole to form a covering structure, and is extended toward the side of the hook body.

[0022] Preferably, the reinforcing block forms a covering structure outside the through hole, and an open opening is provided on a side away from the first connecting portion.

[0023] Preferably, the tensioning operating member comprises:

[0024] The grip portion is used for holding during tightening operation;

[0025] The linkage part is arranged between the handle part and the tensioner body and is a ratchet pawl mechanism.

[0026] Preferably, the handle portion comprises:

[0027] Two half handles are symmetrically arranged on one side of the linkage part away from the tensioner body, and the two half handles are respectively hinged to the linkage part; the half handles can be rotated toward the hook on one side respectively;

[0028] The hook tightening assembly is provided with a set corresponding to each half handle and hook.

[0029] Preferably, the hook tightening assembly comprises:

[0030] A pulling member connected to the hook body via the second connecting portion;

[0031] A tightening member, arranged on the half handle;

[0032] A connecting member, arranged between the pulling member and the tightening member;

[0033] The tightening member can drive the pulling member to move toward its corresponding half handle through the connecting member.

[0034] Preferably, the pulling member comprises:

[0035] A pulling rod can be inserted into the through hole of the hook body;

[0036] A pulling ring, one of which is provided at each end of the pulling rod;

[0037] The tightening member comprises:

[0038] A tightening roller is rotatably arranged on one side of the half handle, the connecting member is a cable, one end of the connecting member is fixedly connected to the roller body of the tightening roller, and the other end is fixedly connected to the pulling ring;

[0039] The locking piece is linked with the tightening roller and can lock the tightening roller.

[0040] Compared with the prior art, the invention has the following beneficial effects: through the structure of the present invention, when the tightener realizes conventional tightening, the hook can be further limited by the hook tightening assembly, thereby ensuring the tight connection between the hook and the hooking position of the object being pulled in. And because the pulling direction of the hook tightening assembly of the present invention is different from the conventional tightening direction, it can well ensure that the hook will not be easily disengaged when the object being hung moves, thereby improving the safety of the use of the tightener. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 The overall structure of the embodiment of the present application is shown in FIG. Figure 1 ;

[0042] Figure 2 The overall structure of the embodiment of the present application is shown in FIG. Figure 2 ;

[0043] Figure 3 A schematic diagram of the hook structure of an embodiment of the present application;

[0044] Figure 4 This is a front view of the hook body of the embodiment of the present application;

[0045] Figure 5 This is a schematic diagram of the handle portion of the embodiment of the present application in an open state;

[0046] Figure 6 for Figure 5 A partial enlarged view of;

[0047] Figure 7 for Figure 5 A partial enlarged view of B.

[0048] In the figure:

[0049] 1. Tensioner body; 2. Tensioning connection assembly; 21. Tensioning member; 22. Chain link; 3. Hook; 31. Hook body; 32. First connecting part; 33. Second connecting part; 4. Tensioning operating member; 41. Handle part; 42. Linkage part; 5. Hook tightening assembly; 51. Pulling member; 511. Pulling rod; 512. Pulling ring; 52. Tightening member; 521. Tightening roller; 522. Locking member. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0051] See also Figure 1-Figure 7 , this application provides the following technical solutions:

[0052] A ratchet tensioner includes a cylindrical tensioner body 1, with a set of tensioning connection components 2 respectively arranged at both ends of the tensioner body 1, and a hook 3 corresponding to each set of tensioning connection components 2. A tensioning operating member 4 is also arranged on the tensioner body 1, and the tensioning operating member 4 is linked with the tensioning connection components 2 to make the tensioning connection components 2 at both ends approach or move away. In addition, a hook tightening component 5 is also arranged corresponding to each hook 3, and the hook tightening component 5 is linked with the hook 3 to drive the hook 3 to move toward the middle of the tensioner body 1.

[0053] According to the present solution, the tensioning connection assembly 2 is tightened by the tensioning operating member 4, thereby driving the hook 3 to perform a tightening action in a conventional direction. On this basis, the hook tightening assembly 5 is used to pull the hook 3 to move toward the middle surface of the tensioner body 1, thereby limiting the position of the hook 3, thereby further preventing the hook 3 from being separated from the object being hung.

[0054] On the basis of the above-mentioned implementation scheme, the tension connection assembly 2 includes a tension piece 21 and a chain ring 22. The tension piece 21 includes a tension hanging ring of a circular ring structure, and a screw is provided on one side of the tension hanging ring. The tension piece 21 is threadedly connected to the tensioner body 1 through the screw. The chain ring 22 is an annular structure, which is connected to the tension piece 21 and the hook 3 respectively. Through the threaded connection, the tension piece 21 can be linked with the tensioner body 1, so as to realize its movement along the axis direction of the tensioner body 1, that is, the conventional tensioning action.

[0055] Based on the above implementation scheme, see Figure 3 , Figure 4 and Figure 7The hook 3 includes a hook body 31, on which a first connection portion 32 and a second connection portion 33 are respectively arranged. The hook body 31 is a hook-shaped structure, used to hook with the tightened object; the first connection portion 32 is annular, arranged at one end of the hook body 31, and the first connection portion 32 is used to connect with the chain ring 22. The second connection portion 33 is arranged on the hook body 31, and is used to connect with the hook tightening assembly 5.

[0056] The second connecting portion 33 includes a through hole, which passes through the hook body 31, and the through hole is located at a position where the hook body 31 is away from the first connecting portion 32. Figure 4 For reference direction, the center point of the hook body 3 at the deepest part of the hook opening structure is point a, the center point of the first connecting portion 32 is point b, and the center point of the through hole is point c. Figure 4 In the reference direction, the position of point c is located on the left side of the vertical extension line of point b. That is, point c and point b are not on the same vertical section, but point c is located on the side of the section where point b is located close to the opening of the hook body 31. At the same time, point c and point a can be on the same vertical section, or point c is located on the left side of the vertical extension line of point a.

[0057] With the through hole as the connection position of the hook tightening component 5 to the hook 3, the hook tightening component 5 applies force to the through hole to pull the hook body 3, so that the hook 3 as a whole can be rotated toward the opening direction of its hook body 31, thereby ensuring better force on the hanging position and strengthening the hanging force.

[0058] On the basis of the above embodiment, the second connection part 33 further includes a reinforcing block, which is symmetrically arranged on both sides of the hook body 31; the reinforcing block is arranged outside the through hole to form a covering structure, and extends to the side of the hook body 31. The reinforcing block forms a covering structure outside the through hole, and an open opening is arranged on the side away from the first connection part 32.

[0059] Considering the direction of force applied by the aforementioned hook tightening assembly 5 to the through hole, providing a reinforcing block can disperse the force applied by the hook tightening assembly 5 and enhance the strength of the hook body 31 .

[0060] On the basis of the above embodiment, the tensioning operating member 4 includes a handle portion 41 and a linkage portion 42. The handle portion 41 is used for holding during the tightening operation; the linkage portion 42 is arranged between the handle portion 41 and the tensioner body 1, and is a ratchet pawl mechanism. The linkage method of the ratchet pawl mechanism and the tensioner body 1 can adopt the existing technology, which will not be repeated here.

[0061] Different from the conventional scheme, Figure 5As shown, the grip part 41 includes two half grips which are symmetrically arranged. They are arranged on the side of the linkage part 42 away from the tensioner main body 1, and the two half grips are respectively hinged to the linkage part 42. The half grips can respectively rotate towards the hook 3 on one side. A set of hook tightening assemblies 5 is provided corresponding to each half grip and the hook 3. Magnet structures that can adsorb each other are arranged on the opposite sides of the two half grips.

[0062] As Figure 6 and 7 shown, the hook tightening assembly 5 includes a pulling member 51 and a tightening member 52. The pulling member 51 includes a pull rod 511 that can be inserted into the through hole of the hook body 31. A pulling ring 512 is respectively arranged at both ends of the pull rod 511. Considering the convenience of connection, a plug rod can be threadedly connected to both ends or one end of the pull rod 511, and then a connecting rod is fixedly connected to the plug rod, so that the connecting rod, the plug rod and the pull rod 511 together form a "C" - shaped structure, and the pulling ring 512 is arranged at the end of the connecting rod away from the pull rod 511.

[0063] The tightening member 52 is arranged on one side of the half grip. A connecting member is arranged between the pulling member 51 and the tightening member 52, and the connecting member can be selected as a steel wire rope or other sufficient line ropes. The tightening member 52 only needs to be able to drive the pulling member 51 to move towards its corresponding half grip through the connecting member, and its specific structure can be realized in various ways.

[0064] With the structure of this solution, during use, the two half grips can be closed together, and then the grip part 41 is held to perform the conventional tightening operation of the tensioner. After the tightening operation is completed, the connecting member is tightened by the tightening member 52, so as to further ensure that the hook 3 and the object to be hung will not easily come off.

[0065] In addition, the tightening member 52 can also be used to initially tighten the hook during the tightening process to prevent the hook 3 and the object being hung from coming off during the tightening process.

[0066] On the basis of the above - mentioned implementation scheme, referring to Figure 6 , this solution gives a specific implementation manner of the tightening member 52. The tightening member 52 includes a tightening roller 521. The tightening roller 521 is rotatably arranged on one side of the half grip. One end of the connecting member cable is fixedly connected to the roller body of the tightening roller 521, and the other end is fixedly connected to the pulling ring 512. When the tightening roller 521 rotates, the tightening of the connecting member can be realized. On this basis, a locking member 522 is linked with the tightening roller 521, and the tightening roller 521 can be locked by the locking member 522 to ensure that it will not rotate after tightening.

[0067] On the basis of the above - mentioned implementation scheme, this solution gives a specific implementation manner of the locking member 522. Referring to Figure 6A connecting block is provided on one side of the half handle, and a through hole is provided on the connecting block, and the axial direction of the through hole is parallel to the axial direction of the hinge axis of the half handle, the linkage part 42 and the half handle. The tightening roller 521 is rotatably connected to the connecting block through the through hole. Teeth are provided on the circumference of one side of the connecting block. The locking member 522 is provided on the side of the connecting block with teeth, and the locking member 522 is also provided with a tooth structure. The locking member 522 and the tightening roller 521 are threadedly connected.

[0068] When in use, the tightening direction of the connecting piece is consistent with the direction in which the tightening roller 521 is thread-locked with the locking piece 522. Assuming that the tightening roller 521 rotates clockwise as the tightening direction of the connecting piece, when the tightening piece 521 rotates clockwise, its thread direction is the direction in which the locking piece 522 moves toward the connecting block. With this structure, when the tightening of the connecting piece is almost completed, the locking piece 522 is supported by hand to make it engage with the teeth of the connecting block, and then the tightening roller 521 is continued to rotate to complete the remaining tightening action. The tightening roller 521 can be locked under the action of the locking piece 522.

[0069] Based on the above implementation scheme, the entire locking member 522 or its tooth part can also be made of elastic material. When the tightening roller 521 completes the tightening of the connecting member, the locking member 522 is rotated to engage with the teeth on the connecting block, which can also complete the locking.

[0070] In the description of the present application and its embodiments, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", "height", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0071] In the present application and its embodiments, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0072] In the present application and its embodiments, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0073] The disclosure above provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0074] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0075] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A ratchet tensioner, characterized in that: include: The tensioner body (1) is a cylindrical structure; The tensioning connection components (2) are respectively arranged at two ends of the tensioner body (1); Two hooks (3) are provided and connected to the tensioner body (1) via a tensioning connection assembly (2); A tensioning operating member (4) is connected to the tensioner body (1) and is linked to the tensioning connection assembly (2) so as to move the tensioning connection assemblies (2) at both ends closer or farther away; The hook tightening assembly (5) is linked with the hook (3) and can drive the hook (3) to move toward the middle of the tensioner body (1).

2. The ratchet tensioner according to claim 1, characterized in that: The tensioning connection assembly (2) comprises: The tensioning member (21) comprises a tensioning hanging ring, one side of which is provided with a screw rod, and the tensioning member (21) is threadedly connected to the tensioner body (1) via the screw rod; The chain link (22) is an annular structure and is connected to the tensioning member (21) and the hook (3) respectively.

3. The ratchet tensioner according to claim 2, characterized in that: The hook (3) comprises: The hook body (31) is a hook-shaped structure and is used to hook the tightened object; A first connecting portion (32) is annular and is used to connect to the chain ring (22); The second connecting portion (33) is arranged on the hook body (31) and is used to connect with the hook tightening assembly (5).

4. The ratchet tensioner according to claim 3, characterized in that: The second connecting portion (33) comprises: The through hole is a through hole that penetrates the hook body (31), and its penetration position is a position where the hook body (31) is far away from the first connecting portion (32).

5. The ratchet tensioner according to claim 4, characterized in that: The second connecting portion (33) further comprises: A reinforcing block is symmetrically arranged on each side of the hook body (31); the reinforcing block is arranged outside the through hole to form a covering structure and is extended toward the side of the hook body (31).

6. The ratchet tensioner according to claim 5, characterized in that: The reinforcing block forms a covering structure outside the through hole, and an open opening is provided on a side away from the first connecting portion (32).

7. The ratchet tensioner according to claim 4, characterized in that: The tensioning operating member (4) comprises: A grip portion (41) for holding during tightening operation; The linkage part (42) is arranged between the handle part (41) and the tensioner body (1) and is a ratchet pawl mechanism.

8. The ratchet tensioner according to claim 7, characterized in that: The handle portion (41) comprises: Two half handles are symmetrically arranged on one side of the linkage part (42) away from the tensioner body (1), and the two half handles are respectively hinged to the linkage part (42); the half handles can be rotated toward the hook (3) on one side respectively; The hook tightening assembly (5) is provided with a set corresponding to each half handle and hook (3).

9. The ratchet tensioner according to claim 8, characterized in that: The hook tightening assembly (5) comprises: A pulling member (51) connected to the hook body (31) via the second connecting portion (33); A tightening member (52) is arranged on the half handle; A connecting member, arranged between the pulling member (51) and the tightening member (52); The tightening member (52) can drive the pulling member (51) to move toward its corresponding half handle through the connecting member.

10. The ratchet tensioner according to claim 9, characterized in that: The pulling member (51) comprises: A pulling rod (511) which can be inserted into the through hole of the hook body (31); A pulling ring (512), one of which is provided at each end of the pulling rod (511); The tightening member (52) comprises: A tightening roller (521) is rotatably arranged on one side of the half handle, the connecting member is a cable, one end of the connecting member is fixedly connected to the roller body of the tightening roller (521), and the other end is fixedly connected to the pulling ring (512); The locking member (522) is linked with the tightening roller (521) and can lock the tightening roller (521).

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