Lever type collar tensioner

Abstract

The utility model discloses a lever-type sleeve ring tensioner, comprising a lever and a rear hook structure, wherein the rear hook structure is rotatably matched with the upper end of the lever, an end head is arranged at the lower end of the lever, and the end head is provided with a mounting groove penetrating laterally, a pin shaft is matched between the rotating connection structure and the mounting groove, the sleeve ring connection structure is rotatably connected to the lower part of the end head, and the rotating connection position is located below the pin shaft, and a front hook structure is installed through the rotating connection structure; when the device is in use, the traction of the traction chain is completed by the rotation of the lever, and the buckling between the sleeve rings is convenient; when it is found that the lever is rotated to the limit position and cannot be turned by manpower, and the butt joint distance of the sleeve ring is insufficient, the threaded rod can be rotated to further tighten it, so as to facilitate the butt joint of the sleeve ring, and also save the need to repeatedly find a suitable position, so that the butt joint reset of the traction chain is more convenient.

Description

Technical Field

[0001] The utility model relates to a lever type sleeve ring tensioner. Background Art

[0002] When the traction chain is broken, it needs to be repaired. During the repair, the damaged ring needs to be removed, a new ring needs to be installed, and then the broken traction chain needs to be connected.

[0003] In order to ensure that the length of the extended traction chain is consistent with the original length, no new rings will be added. Therefore, in order to ensure that the length remains unchanged, a tensioner is needed to tighten the rings at both ends and then connect them.

[0004] In the prior art, lever-type tensioners are mainly used, which can relatively easily complete the connection by rotating the lever arm. However, we have also found more serious technical problems during actual use.

[0005] First of all, the size of the rings on the same section of traction chain is consistent, and the size of the tensioner is also fixed. Therefore, in actual operation, when the lever is rotated to the extreme position, the two sections of the rings that need to be connected cannot be fastened together. It is necessary to remove the traction device, find a suitable ring, and then connect them, which is a more troublesome operation.

[0006] Based on the above problems, we designed a lever-type collar tensioner that can adjust the distance, eliminating the need to repeatedly search for collars with suitable distances. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a lever-type collar tensioner which can adjust the distance and saves the need to repeatedly search for collars with suitable distances.

[0008] In order to solve the above problems, the utility model adopts the following technical solutions:

[0009] A lever type collar tensioner, comprising a lever, and further comprising:

[0010] A rear hook structure, the rear hook structure is rotatably matched with the upper end of the lever,

[0011] The rotating connection structure is provided with an end head at the lower end of the lever, and the end head is provided with a laterally penetrating installation slot, and a pin shaft is matched between the rotating connection structure and the installation slot, and the rotating connection structure rotates along the pin shaft.

[0012] A sleeve connection structure, wherein the sleeve connection structure is rotatably connected to the lower part of the end head, and the rotation connection position is located below the pin shaft,

[0013] A front hook structure is installed through the rotating connection structure.

[0014] Preferably, the rear hook structure comprises a lifting chain and a hook installed at the end of the lifting chain, and a through hole is provided near the upper portion of the lever, and the lifting chain is installed through the through hole.

[0015] Preferably, the rotating connection structure includes a rotating arm, one end of the rotating arm is rotatably connected to the pin shaft, and the other end of the rotating arm is provided with a sleeve, the sleeve is processed with an internal thread, and a threaded rod is cooperated through the sleeve, and the end of the threaded rod located outside the sleeve is provided with a polygonal force-bearing part, and a first through hole is provided at the axis of the threaded rod, the first through hole axially penetrates the threaded rod, and a rotating rod is cooperated through the first through hole, and a connecting ring is provided at one end of the rotating rod, and a nut is cooperated with the other end of the rotating rod after passing through the first through hole, the outer diameter of the nut is smaller than the diameter of the threaded rod, and the front hook structure cooperates with the connecting ring.

[0016] Preferably, the front hook structure comprises a first hanging chain, one end of the first hanging chain is connected to the connecting ring, and the other end is provided with a first hook.

[0017] Preferably, the sleeve connection structure comprises a U-shaped ring, and bolts are fitted between the U-shaped ring and the end head.

[0018] Preferably, an open groove is provided on the side of the U-shaped ring.

[0019] The beneficial effects of the utility model are:

[0020] When the device is in use, the traction of the traction chain is completed by rotating the lever, which facilitates the buckling of the rings. When it is found that the lever is rotated to the limit position and cannot be turned by human power, and the docking distance of the rings is insufficient, the threaded rod can be rotated to further tighten it, which facilitates the docking of the rings and saves the need to repeatedly search for a suitable position, making the docking and resetting of the traction chain more convenient and suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 for Figure 1 A local enlarged view at point A;

[0024] Figure 3 It is a partial schematic diagram of the device;

[0025] Figure 4 Four schematic diagrams of the cooperation between the threaded rod and the rotating rod;

[0026] Figure 5 is a schematic diagram of a rotating rod;

[0027] Figure 6 This is a working schematic diagram of the device. DETAILED DESCRIPTION

[0028] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0029] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0030] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, in the description of the present invention, “plurality” means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "set", "socket", "connect", "penetrate", "plug in" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] See also Figure 1The lever type collar tensioner shown in the figure comprises a lever 1 and further comprises:

[0034] A rear hook structure 2, wherein the rear hook structure 2 is rotatably matched with the upper end of the lever 1,

[0035] The rotating connection structure 3 is provided with an end 11 at the lower end of the lever 1, and the end 11 is provided with a laterally penetrating installation groove (not shown), and a pin shaft 12 is matched between the rotating connection structure 3 and the installation groove, and the rotating connection structure 3 rotates along the pin shaft 12.

[0036] The sleeve connecting structure 4 is rotatably connected to the lower part of the end 11, and the rotatable connection position is located below the pin 12.

[0037] The front hook structure 5 is installed through the rotating connection structure 3.

[0038] See also Figure 1 The figure shows a preferred embodiment of the present invention, wherein the rear hook structure 2 includes a suspension chain 21 and a hook 22 installed at the end of the suspension chain 21 . A through hole 13 is provided near the upper portion of the lever 1 , and the suspension chain 21 is installed through the through hole 13 .

[0039] See also Figure 3 , Figure 4 and Figure 5 The figure shows a preferred embodiment of the utility model, wherein the rotating connection structure 3 comprises a rotating arm 31, one end of the rotating arm 31 is rotatably connected to the pin shaft 12, a sleeve 32 is provided at the other end of the rotating arm 31, the sleeve 32 is processed with an internal thread, a threaded rod 34 is matched through the sleeve 33, the end of the threaded rod 34 located outside the sleeve 33 is provided with a polygonal force-bearing portion 35, a first through hole (not shown) is provided at the axis of the threaded rod 34, the first through hole axially penetrates the threaded rod 34, a rotating rod 36 is matched through the first through hole, a connecting ring 37 is provided at one end of the rotating rod 36, a nut 38 is matched with the other end of the rotating rod 36 after passing through the first through hole, the outer diameter of the nut 38 is smaller than the diameter of the threaded rod 34, and the front hook structure 5 is matched with the connecting ring 37.

[0040] In the above technical solution, the front hook structure 5 can be further pulled by the inward rotation of the threaded rod 34 to complete further tightening and facilitate the connection of the rings.

[0041] See also Figure 3 The figure shows a preferred embodiment of the present invention. The front hook structure 5 includes a first hanging chain 51. One end of the first hanging chain 51 is connected to the connecting ring 37, and the other end is provided with a first hook 52.

[0042] See also Figure 3 The figure shows a preferred embodiment of the present invention, wherein the sleeve connection structure 4 comprises a U-shaped ring 41 , and a bolt 42 is provided between the U-shaped ring 41 and the end head 11 .

[0043] The connection method using the bolts 42 is firstly convenient for rotating the U-shaped ring 41 and secondly convenient for removing the U-shaped ring 41 .

[0044] In a preferred embodiment of the present invention, an open groove 411 is provided on the side of the U-shaped ring 41 .

[0045] The above technical solution adopts the design of the open groove 411. When cooperating with the tightened collar, the collar can be inserted through the open groove 411, eliminating the need to disassemble the bolt 42, making the operation more convenient.

[0046] The tightening method for the collar is as follows:

[0047] First, connect the U-shaped ring 41 to one of the sleeve rings, such as Figure 6 As shown, the connection point is point B, the lever is rotated to the left, so that the front hook structure 5 is extended to the left as much as possible, and the first hook 52 is connected to one of the rings, as shown in FIG. Figure 6 As shown, the connection point is point C. At this time, there are at least 2 extra rings on the right side of point C, and correspondingly, there are at least 2 extra rings on the left side of point B.

[0048] Rotate the lever again, and after the lever rotates around point B, pull the ring at the connection point C to the right, and then hook one of the rings on the right side of point B through the rear hook structure 2. The connection point is D. At this time, the lever is limited, and then the two rings that need to be connected can be connected.

[0049] When the butt joint distance is insufficient, the collar can be further pulled by rotating the threaded rod, so as to facilitate the butt joint of the collar after completion.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0051] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0052] For ease of description, spatially relative terms such as "above", "above", "on the upper surface", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein are interpreted accordingly.

[0053] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0054] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0055] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A lever-type collar tensioner, comprising a lever, characterized in that: Also includes, A rear hook structure, the rear hook structure is rotatably matched with the upper end of the lever, The rotating connection structure is provided with an end head at the lower end of the lever, and the end head is provided with a laterally penetrating installation slot, and a pin shaft is matched between the rotating connection structure and the installation slot, and the rotating connection structure rotates along the pin shaft. A sleeve connection structure, wherein the sleeve connection structure is rotatably connected to the lower part of the end head, and the rotation connection position is located below the pin shaft, A front hook structure is installed through the rotating connection structure.

2. The lever type collar tensioner according to claim 1, characterized in that: The rear hook structure comprises a suspension chain and a hook installed at the end of the suspension chain. A through hole is provided near the upper portion of the lever, and the suspension chain is installed through the through hole.

3. The lever type collar tensioner according to claim 1, characterized in that: The rotating connection structure includes a rotating arm, one end of which is rotatably connected to the pin shaft, and the other end of the rotating arm is provided with a sleeve, the sleeve is processed with an internal thread, and a threaded rod is matched with the sleeve, and the end of the threaded rod located outside the sleeve is provided with a polygonal force-bearing part, a first through hole is provided at the axis of the threaded rod, the first through hole axially penetrates the threaded rod, and a rotating rod is matched with the first through hole, a connecting ring is provided at one end of the rotating rod, and a nut is matched with the other end of the rotating rod after passing through the first through hole, the outer diameter of the nut is smaller than the diameter of the threaded rod, and the front hook structure is matched with the connecting ring.

4. The lever type collar tensioner according to claim 3, characterized in that: The front hook structure comprises a first hanging chain, one end of which is connected to the connecting ring, and the other end of which is provided with a first hook.

5. The lever type collar tensioner according to claim 1, characterized in that: The sleeve ring connection structure comprises a U-shaped ring, and bolts are arranged between the U-shaped ring and the end head.

6. The lever type collar tensioner according to claim 5, characterized in that: An open groove is arranged on the side surface of the U-shaped ring.

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