Manual tightener

Abstract

The invention discloses a manual tightener which comprises a base, a rotary tightening mechanism, a ratchet mechanism, a ribbon and an unwinding structure. The rotary tightening mechanism is connected with the ribbon and assembled on the base; the ratchet mechanism is assembled at the bottom of the rotary tightening mechanism and used for driving the rotary tightening mechanism to unidirectionally tighten the ribbon; the unwinding structure is connected with the rotary tightening mechanism and is used for controlling the reverse stretching of the ribbon; by integrating the base, the rotary tightening mechanism, the ratchet mechanism and the binding belt, the device is compact in structure and complete in function; a user can conveniently operate the tightener to complete one-way tightening work on the ribbon; the one-way locking function of the ratchet mechanism ensures that the tightened binding belt cannot automatically loosen, so that the tightening efficiency is improved; the manual tightener can be applied to various scenes needing binding and fixing, such as the fields of packaging, logistics, buildings and the like.

Description

Technical Field

[0001] The invention relates to the field of packaging machinery, in particular to a manual tightener. Background Art

[0002] In logistics, construction, family life and other fields, it is often necessary to tie and fix various items. These items may be of different shapes and sizes, so a tying tool that can adapt to various situations is needed. The manual tightener has become an ideal choice for these occasions due to its simple structure, easy operation and wide range of applications.

[0003] The common manual strapping machine on the market first tightens the strapping belt with a tensioner, and then uses tools such as clamps to clamp and embed the parts of the strapping belt connected with fasteners and other materials at both ends. The operation is relatively cumbersome. In the "manual strapping machine" disclosed in the publication number CN205971939U, a strapping belt tightening mechanism, a strapping belt fastener locking mechanism and a strap cutting mechanism are provided; they are all operated by the same rotatable handle; the handle switches the connection with the strapping belt tightening mechanism and the fastener locking mechanism through a clutch mechanism to operate the corresponding mechanism to work, and the handle has an initial angle, and the handle is rotated upward from the initial angle to operate the strapping belt tightening mechanism to tighten the strapping belt or the fastener locking mechanism to lock the fastener. The operating stroke of the strap cutting mechanism is rotated downward from the initial angle. The utility model manual strapping machine is a machine that relies on manual operation to wrap the strapping belt around the product or package, and then tightens it and connects the two ends with fasteners and other materials. The above-mentioned manual strapping machine improves the strapping efficiency, but it integrates the strapping strap tightening, fastener locking and strap cutting functions, which are operated by a rotatable handle and switched by a clutch mechanism, increasing the complexity of operation and the cost of the equipment; and the size and weight are relatively large, making it inconvenient to carry and operate. Summary of the invention

[0004] In order to overcome the above-mentioned defects in the prior art, a manual tightener is provided.

[0005] The technical solution of the present invention is as follows: a manual tightener comprises a base, a rotary tightening mechanism, a ratchet mechanism, a cable tie and an unwinding structure; the rotary tightening mechanism is connected to the cable tie and assembled on the base; the ratchet mechanism is assembled at the bottom of the rotary tightening mechanism and is used to drive the rotary tightening mechanism to tighten the cable tie in one direction; the unwinding structure is connected to the rotary tightening mechanism and is used to control the reverse elongation of the cable tie.

[0006] Preferably, the rotary tightening mechanism includes a connecting plate and a rotating cylinder, a rotating shaft and a winding device mounted on the upper surface of the connecting plate; the rotating shaft and the winding device are sequentially mounted in the rotating cylinder from the inside to the outside, and an inner cavity for accommodating the cable tie is provided between the winding device and the rotating cylinder; the lower surface of the connecting plate is used to fix the ratchet mechanism.

[0007] Preferably, a guide column is mounted on the connecting plate near the outer side of the winding device.

[0008] Preferably, the ratchet mechanism comprises an outer ratchet disc and a ratchet tooth groove; the ratchet tooth groove is assembled on the base, and the non-return pawl on the outer ratchet disc is engaged with the ratchet tooth groove.

[0009] Preferably, a plurality of protruding positioning members are provided on the lower surface of the connecting plate, and a plurality of positioning grooves engaging with the plurality of protruding positioning members are provided on the outer ratchet disc.

[0010] Preferably, a rotating cover connected to the rotating shaft and the winding device is fixed on the rotating drum.

[0011] Preferably, the unwinding structure comprises a pressing member and an elastic member; the pressing member is assembled on the rotating drum via the elastic member.

[0012] Preferably, the pressing piece is inserted into a pressing hole provided on the side of the rotating cover.

[0013] Preferably, the pressing member is provided with an assembly groove for mounting the elastic member, and the depth of the assembly groove is smaller than the length of the elastic member.

[0014] Preferably, the top surface of the rotating cover is provided with an assembly hole and a mounting cover matching the rotating shaft.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The manual tightener integrates the base, rotary tightening mechanism, ratchet mechanism and cable tie to make the device compact and functional. The user can easily operate the tightener to complete the one-way tightening of the cable tie. The one-way locking function of the ratchet mechanism ensures that the tightened cable tie will not loosen by itself, thereby improving the tightening efficiency. The manual tightener can be used in various scenarios that require bundling and fixing, such as packaging, logistics, construction and other fields. Its simple structure and easy operation make it the tool of choice for many industries. Compared with electric or pneumatic tighteners, the manual tightener does not require electricity or air pressure supply, which reduces the cost of use. In addition, its maintenance and maintenance are relatively simple, reducing additional maintenance costs. Its small size, light weight, easy to carry and store, suitable for outdoor operations or occasions that require frequent movement; the unwinding structure allows users to more conveniently replace, lengthen cable ties or perform other maintenance work.

[0016] Furthermore, the design of the rotary tightening mechanism allows the cable tie to be effectively wound and tightened. The combination of the connecting plate, the rotating drum, the rotating shaft and the winding device ensures a smooth winding and tightening process of the cable tie. The design of the inner cavity provides sufficient space for the cable tie to avoid jamming or damage during the tightening process. The winding device enables the cable tie to be tightly wound thereon, thereby achieving an efficient tightening effect. At the same time, the smooth rotation of the rotating drum and the rotating shaft also ensures the continuity and stability of the tightening process. The structure of the rotary tightening mechanism is relatively simple, so it is easy to maintain and service; the user can easily disassemble and clean the various components to ensure the long-term stable operation of the tightener.

[0017] Furthermore, the addition of the guide column improves the stability and accuracy of the cable tie during the winding process. It ensures that the cable tie can be wound according to the predetermined path, thereby avoiding the misalignment or loosening of the cable tie. The guide column allows the user to see the path and status of the cable tie more clearly when operating the manual tightener, improving the convenience and efficiency of operation. Ensuring that the cable tie smoothly enters the winding device along the guide column can avoid problems such as twisting, winding or jamming of the cable tie during the tightening process.

[0018] Furthermore, the ratchet mechanism allows the rotary tightening mechanism to rotate only in one direction, thereby ensuring the one-way tightening of the cable tie. This design prevents the tightened cable tie from being loosened due to accidental operation, thereby improving the reliability and safety of the tightener.

[0019] Furthermore, the design of the raised positioning piece and the positioning groove ensures a stable connection between the rotary tightening mechanism and the ratchet mechanism, and facilitates the disassembly of the rotary tightening mechanism and the ratchet mechanism, so that after separation, the cable tie can be loosened in the opposite direction.

[0020] Furthermore, the rotating cover not only protects the internal structure of the rotating tightening mechanism, but also provides a connection point with the rotating shaft and the winding device, so that the rotating tightening mechanism can be more firmly fixed on the base, and it is convenient for the user to operate the tightener.

[0021] Furthermore, the combination of the pressing member and the elastic member enables the unwinding structure to be operated more conveniently, thereby improving the usability of the tightener and ensuring the reliability and durability of the unwinding structure.

[0022] Furthermore, the pressing hole enables the user to easily lift the rotary tightening mechanism through the pressing piece when needed, so as to separate it from the ratchet mechanism. At the same time, the unwinding structure also improves the flexibility and practicality of the tightener.

[0023] Furthermore, the depth of the assembly groove is less than the length of the elastic member, ensuring that the elastic member can be firmly fixed on the pressing member. This prevents the elastic member from falling off or being damaged during use, thereby improving the stability and reliability of the unwinding structure. When the user presses the pressing member, the elastic member can provide a reaction force, improving the user experience.

[0024] Furthermore, the assembly hole and the mounting cover enable the rotating shaft to be firmly fixed on the rotating cover. At the same time, the mounting cover also provides additional protection to prevent dust or impurities from entering the interior of the rotating tightening mechanism. This design not only improves the overall structural strength of the tightener, but also ensures the smooth operation of the rotating tightening mechanism.

[0025] Other features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings: Figure 1 It is a structural schematic diagram of the manual tightener of the present invention; Figure 2 It is a schematic diagram of the exploded structure of the manual tightener of the present invention; Figure 3 It is a structural schematic diagram of the unwinding structure of the present invention; Figure 4 It is a schematic diagram of the installation of the ratchet mechanism and the unwinding structure of the present invention; The following are the descriptions of the reference numerals: Base 1, rotating tightening mechanism 2, connecting plate 21, protruding positioning piece 211, rotating cylinder 22, rotating shaft 23, winding device 24, guide column 25, rotating cover 26, pressing hole 261, assembly hole 262, mounting cover 263, ratchet mechanism 3, outer ratchet disk 31, non-return pawl 311, positioning groove 312, ratchet tooth groove 32, cable tie 4, unwinding structure 5, pressing piece 51, assembly groove 511, elastic piece 52. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0028] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings: like Figures 1 to 4 As shown, the manual tightener includes a base 1, a rotary tightening mechanism 2, a ratchet mechanism 3 and a cable tie 4; the rotary tightening mechanism 2 is connected to the cable tie 4 and assembled on the base 1; the ratchet mechanism 3 is assembled at the bottom of the rotary tightening mechanism 2, and is used to drive the rotary tightening mechanism 2 to tighten the cable tie 4 in one direction. The rotary tightening mechanism 2 includes a connecting plate 21 and a rotating cylinder 22, a rotating shaft 23 and a winding device 24 assembled on the upper surface of the connecting plate 21; the rotating shaft 23 and the winding device 24 are assembled in the rotating cylinder 22 from the inside to the outside, and an inner cavity for accommodating the cable tie 4 is provided between the winding device 24 and the rotating cylinder 22; the lower surface of the connecting plate 21 is used to fix the ratchet mechanism 3. The ratchet mechanism 3 includes an outer ratchet disc 31 and a ratchet tooth groove 32; the ratchet tooth groove 32 is assembled on the base 1, and the non-return pawl 311 on the outer ratchet disc 31 is engaged with the ratchet tooth groove 32.

[0031] Furthermore, a cable tie 4 is bent from the middle to form a bundle of objects, and the bent end is wound on the winding device 24. The wound cable tie 4 is accommodated between the winding device 24 and the rotating drum 22, and the other end is fixed on the connecting piece for bundling objects to form a gap for fixing the objects. When bundling, the cable tie 4 is tightened in one direction by cooperating with the rotating tightening mechanism 2 and the ratchet mechanism 3, so that the cable tie 4 is tied tightly to the object, and then the cable tie 4 is tied and cut to complete the bundling.

[0032] Embodiment 1: This embodiment provides a basic manual tightener, including a base 1, a rotary tightening mechanism 2, a ratchet mechanism 3 and a cable tie 4; the rotary tightening mechanism 2 is assembled on the base 1 through a connecting plate 21, and includes a rotary cylinder 22, a rotary shaft 23 and a winding device 24. The ratchet mechanism 3 is assembled at the bottom of the rotary tightening mechanism 2, and the one-way tightening function of the rotary tightening mechanism 2 is realized through the cooperation of the outer ratchet disc 31 and the ratchet tooth groove 32.

[0033] Among them, the ratchet tooth groove 32 check pawl 311 on the outer ratchet disc 31 is engaged with the ratchet tooth groove 32, and the outer ratchet disc 31 is rotated by manually controlling the rotary tightening mechanism 2 to drive the outer ratchet disc 31 to rotate in a single direction in the ratchet tooth groove 32, preventing the cable tie 4 from loosening in the opposite direction after tightening, thereby improving the bundling efficiency and accuracy.

[0034] Embodiment 2: Based on Embodiment 1, this embodiment adds the design of a guide column 25 and an unwinding structure.

[0035] A guide post 25 is mounted on the connecting plate 21 near the outer side of the winding device 24. A rotating cover 26 connected to the rotating shaft 23 and the winding device is fixed on the rotating cylinder 22.

[0036] Among them, the cable tie 4 is wound on the winding device 24, and the open end of the cable tie 4 is wrapped around the guide column 25 to prevent the cable tie 4 from being entangled and knotted, and then connected to the connecting piece used for bundling objects. In the subsequent bundling process, a guiding effect is provided to make the bundling efficiency more efficient.

[0037] One end of the unwinding structure 5 is assembled on the rotating cylinder 22, and the other end passes through the pressing hole 261 provided on the side of the rotating cover 26. The unwinding structure 5 is used to lift the rotating tightening mechanism 2 to separate the rotating tightening mechanism 2 from the ratchet mechanism 3. The unwinding structure 5 includes a pressing member 51 and an elastic member 52; the pressing member 51 is assembled on the rotating cylinder 22 through the elastic member 52. The pressing member 51 is provided with an assembly groove 511 for mounting the elastic member 52, and the depth of the assembly groove 511 is less than the length of the elastic member 52.

[0038] Specifically, the guide column 25 is mounted on the connecting plate 21 near the outer side of the winding device 24, and is used to guide the winding direction of the cable tie 4, thereby improving the stability and accuracy of the tightening process. The unwinding structure 5 includes a pressing member 51 and an elastic member 52, which are mounted on the rotating cylinder 22 and connected to the rotary tightening mechanism 2 through a pressing hole 261 on the side of the rotating cover 26. When the user needs to loosen the cable tie 4, the user can press the pressing member 51, lift the rotary tightening mechanism 2, separate the rotary tightening mechanism 2 from the ratchet mechanism 3, and thus easily release the cable tie 4. The manual tightener of this embodiment not only has a basic tightening function, but also has a convenient unwinding function, thereby improving the convenience and flexibility of use.

[0039] Embodiment 3: The accuracy of the manual tightener is improved.

[0040] A plurality of protruding positioning members 211 are provided on the lower surface of the connecting plate 21, and a positioning groove 312 is provided on the outer ratchet disc 31, which is engaged with the plurality of protruding positioning members 211. This design not only improves the connection stability between the rotary tightening mechanism 2 and the ratchet mechanism 3, but also ensures the accuracy and reliability during the tightening process. Furthermore, when the unwinding structure 5 lifts the rotary tightening mechanism 2, the protruding positioning member 211 is separated from the positioning groove 312, so that the rotary tightening mechanism 2 is separated from the ratchet mechanism 3, and the cable tie 4 on the winding device 24 can be pulled out of the rotary tightening mechanism 2, and the cable tie 4 can be released in cooperation with the unwinding structure 5.

[0041] Furthermore, the top surface of the rotating cover 26 is provided with an assembly hole 262 and a mounting cover 263 that match the rotating shaft 23. The stability of the rotating shaft 23 is improved, the structure of the rotating tightening mechanism 2 is further strengthened, and additional protection is provided; a rotating guide arrow is provided on the protective shell, which improves the convenience of the manual tightener when in use.

[0042] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for all purposes. The term "consisting essentially of..." to describe a combination should include the identified elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe a combination of elements, ingredients, parts or steps herein also contemplates embodiments that consist essentially of these elements, ingredients, parts or steps. By using the term "may", it is intended to indicate that any attribute described that "may" include is optional.

[0043] Multiple elements, compositions, parts or steps can be provided by a single integrated element, composition, part or step. Alternatively, a single integrated element, composition, part or step can be divided into separate multiple elements, compositions, parts or steps. The disclosure "one" or "an" used to describe an element, composition, part or step is not intended to exclude other elements, compositions, parts or steps.

[0044] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but should be determined with reference to the appended claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to be a waiver of the subject matter, nor should it be considered that the inventors did not consider the subject matter to be part of the disclosed inventive subject matter.

Claims

1. Manual tightener, characterized by: The invention comprises a base (1), a rotary tightening mechanism (2), a ratchet mechanism (3), a cable tie (4) and an unwinding structure (5); the rotary tightening mechanism (2) is connected to the cable tie (4) and is mounted on the base (1); the ratchet mechanism (3) is mounted on the bottom of the rotary tightening mechanism (2) and is used to drive the rotary tightening mechanism (2) to unidirectionally tighten the cable tie (4); the unwinding structure (5) is connected to the rotary tightening mechanism (2) and is used to control the reverse elongation of the cable tie (4).

2. The manual tightener according to claim 1, characterized in that: The rotary tightening mechanism (2) comprises a connecting plate (21) and a rotating cylinder (22), a rotating shaft (23) and a winding device (24) mounted on the upper surface of the connecting plate (21); the rotating shaft (23) and the winding device (24) are sequentially mounted in the rotating cylinder (22) from the inside to the outside, and an inner cavity for accommodating a cable tie (4) is provided between the winding device (24) and the rotating cylinder (22); the lower surface of the connecting plate (21) is used to fix the ratchet mechanism (3).

3. The manual tightener according to claim 2, characterized in that: A guide column (25) is mounted on the connecting plate (21) near the outer side of the winding device (24).

4. The manual tightener according to claim 1, characterized in that: The ratchet mechanism (3) comprises an outer ratchet disc (31) and a ratchet tooth groove (32); the ratchet tooth groove (32) is mounted on the base (1), and a non-return pawl (311) on the outer ratchet disc (31) is engaged with the ratchet tooth groove (32).

5. The manual tightener according to claim 2, characterized in that: The lower surface of the connecting plate (21) is provided with a plurality of protruding positioning pieces (211), and the outer ratchet disc (31) is provided with positioning grooves (312) that engage with the plurality of protruding positioning pieces (211).

6. The manual tightener according to claim 2, characterized in that: A rotating cover (26) connected to the rotating shaft (23) and the winding device is fixed on the rotating cylinder (22).

7. The manual tightener according to claim 1, characterized in that: The unwinding structure (5) comprises a pressing piece (51) and an elastic piece (52); the pressing piece (51) is assembled on the rotating cylinder (22) via the elastic piece (52).

8. The manual tightener according to claim 7, characterized in that: The pressing member (51) is inserted into a pressing hole (261) provided on the side of the rotating cover (26).

9. The manual tightener according to claim 8, characterized in that: The pressing piece (51) is provided with an assembly groove (511) for mounting the elastic piece (52), and the depth of the assembly groove (511) is less than the length of the elastic piece (52).

10. The manual tightener according to claim 6, characterized in that: The top surface of the rotating cover (26) is provided with an assembly hole (262) and a mounting cover (263) that match the rotating shaft (23).

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