A line tightener operating lever

Abstract

The application belongs to the technical field of electric power construction, and discloses a line tightener operating rod. The line tightener operating rod comprises a rod body, a connecting clamp, a locking mechanism and an operating member. The rod body is provided in a telescopic mode, the connecting clamp is arranged at one end of the rod body and is used for cooperating with the line tightener. The locking mechanism is arranged on the connecting clamp and can lock the connecting clamp to keep the connecting clamp cooperating with the line tightener. One end of the operating member is connected with the locking mechanism, and the other end of the operating member is arranged to pass through the rod body. By operating the end of the operating member passing through the rod body, the locking mechanism is driven to be unlocked, so that the connecting clamp can be separated from the line tightener. The operating rod can not only lengthen the distance of the line tightener, but also can guarantee the stable connection of the line tightener and the operating rod by the locking mechanism when the line tightener cooperates with the operating rod. When the line tightener needs to be separated from the operating rod, the operating rod can be separated from the line tightener by pulling the operating member, so that the operating rod is convenient and fast to operate.

Description

Technical Field

[0001] This invention relates to the field of power construction technology, and in particular to a tensioner operating rod. Background Technology

[0002] Currently, during power system line laying operations, before tightening the line, it is necessary to send the tensioner to the laying end and then operate the tensioner to perform the tightening operation. Since most existing tensioners require the operator to push them outwards by hand, during the tightening operation, the moving clamp end is often short, requiring the maintenance personnel to extend outwards a large distance. However, due to the operator's limited arm span, it is often necessary to add wooden sticks or other poles to extend the outward pushing distance.

[0003] However, the tensioner's arm is movable and inconvenient to fix. If a rope is used to tie the pole to the tensioner arm, the rope cannot be untied after pushing the tensioner to the right, causing the pole to interfere with the tensioning operation. Although some poles with retraction and extension functions have been introduced on the market, their connection to the tensioner is not secure, and interference can easily occur when retracting the pole. Summary of the Invention

[0004] The purpose of this invention is to provide a tensioner operating lever that can be firmly connected to the tensioner, and is convenient and quick to retract without affecting subsequent tensioning operations.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A tensioner operating lever includes: a lever body; a connecting clamp disposed at one end of the lever body for engaging with a tensioner; a locking mechanism disposed on the connecting clamp for locking the connecting clamp to maintain engagement with the tensioner; and an operating member connected to the locking mechanism. Operating the operating member unlocks the locking mechanism, allowing the connecting clamp to disengage from the tensioner.

[0007] Preferably, the connecting clamp includes: a fixed clamp, fixedly mounted on the rod body; and a movable clamp, pivotally connected to the fixed clamp, the movable clamp being rotatable about the pivot axis and defining a receiving space with the fixed clamp for accommodating the tensioner.

[0008] Preferably, a first elastic element is provided between the movable clamp and the fixed clamp, so that the connecting clamp has a tendency to open.

[0009] Preferably, there are two fixing clamps, which are parallel and spaced apart.

[0010] Preferably, the fixed clamp includes: a plug-in portion, which is plugged into the inside of the rod and fixedly connected to the rod; a clamp head, which cooperates with the tensioner together with the movable clamp; and a connecting portion, which is disposed between the plug-in portion and the clamp head and is used to support the movable clamp and the locking mechanism.

[0011] Preferably, the locking mechanism includes: a locking rack, fixedly connected to the movable chuck and capable of rotating together with the movable chuck, the locking rack being provided with ratchet teeth; and a locking member, movably disposed on the fixed chuck, one end of the locking member being provided with a pawl; wherein the pawl on the locking member engages with the ratchet teeth of the locking rack to fix the movable chuck.

[0012] Preferably, the locking member is provided with a guide groove, and the fixing clamp is provided with at least two guide posts. The at least two guide posts cooperate with the guide groove to achieve guidance, so that the locking member can slide along the length direction of the rod.

[0013] Preferably, a second elastic element is provided between the locking member and the fixed clamp, so that the locking member tends to move toward the locking rack.

[0014] Preferably, the locking rack includes: a fixing part for connecting with the movable chuck; and a rack part, which is arc-shaped and provided with ratchet teeth for engaging with the locking member.

[0015] Preferably, the rod body is composed of at least two tubes of different diameters, the at least two tubes are sleeved together and can slide relative to each other along their axial direction; the tensioner operating rod also includes at least one locking element, which can lock the rod body and fix the extension length of the rod body.

[0016] The beneficial effects of this invention are:

[0017] This invention discloses a tensioner operating lever, including a lever body, a connecting clamp, a locking mechanism, and an operating component. The lever body is telescopically oriented. The connecting clamp is located at one end of the lever body and is used to cooperate with the tensioner. The locking mechanism is located on the connecting clamp and can lock the connecting clamp to maintain cooperation with the tensioner. One end of the operating component is connected to the locking mechanism, and the other end extends out of the lever body. By operating the end of the operating component extending out of the lever body, the locking mechanism is unlocked, allowing the connecting clamp to disengage from the tensioner. The operating lever of this invention not only extends the distance the tensioner can be pushed outward, but also ensures a stable connection between the two when cooperating with the tensioner through the locking mechanism, preventing them from falling off. When it is necessary to disengage from the tensioner, simply pulling the operating component will disengage the two, making the operation convenient and quick. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the tensioner operating lever in the locked state in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the tensioner operating lever in the unlocked state in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the fixed clamp of the tensioner operating rod in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the locking component of the tensioner operating lever in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the locking rack of the tensioner operating lever in an embodiment of the present invention.

[0023] In the picture:

[0024] 1. Rod body; 2. Connecting chuck; 21. Fixed chuck; 211. Insertion part; 212. Chuck head; 213. Connecting part; 22. Movable chuck; 3. Locking mechanism; 31. Locking rack; 311. Fixed part; 312. Rack part; 32. Locking element; 321. Guide groove; 4. Operating element; 5. First elastic element; 6. Second elastic element; 7. Locking element. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0026] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0029] This invention discloses a tensioner operating lever, such as... Figure 1 As shown, the operating lever includes a lever body 1, a connecting clamp 2, a locking mechanism 3, and an operating component 4. The lever body 1 is telescopic to extend the distance of the external tensioner. The connecting clamp 2 is located at one end of the lever body 1 and engages with the tensioner. The locking mechanism 3 is located on the connecting clamp 2 and locks the connecting clamp 2 to maintain its engagement with the tensioner, increasing the stability of the engagement. One end of the operating component 4 is connected to the locking mechanism 3, and the other end extends from the lever body 1. By operating the end of the operating component 4 extending from the lever body 1, the locking mechanism 3 is unlocked, allowing the connecting clamp 2 to disengage from the tensioner. It is understood that by providing a telescopic lever body 1, the distance of the external tensioner can be extended as much as possible, thus reducing the number of lever replacement operations. Simultaneously, the telescopic lever body 1 is easy to carry when not in use. The connecting clamp 2 can cooperate with the tensioner and will not fall off when the tensioner is pushed. The locking mechanism 3 further ensures the stability of the cooperation between the connecting clamp 2 and the tensioner. The operating element 4 can be a pull rope, one end of which is connected to the locking mechanism 3, and the other end of which passes through the inside of the rod 1. By pulling the end of the operating element 4 through the rod 1, the connecting clamp 2 can be opened easily and quickly, disengaging the operating rod from the tensioner without affecting the subsequent tensioning operation of the tensioner.

[0030] In some embodiments, such as Figure 2As shown, the connecting clamp 2 includes a fixed clamp 21 and a movable clamp 22. The fixed clamp 21 is fixedly mounted on the rod body 1, and the movable clamp 22 is pivotally connected to the fixed clamp 21, allowing the movable clamp 22 to rotate around the pivot axis. It can be understood that the movable clamp 22 and the fixed clamp 21 work together to directly clamp and connect to the tensioner arm, or to define a space for accommodating the tensioner connecting arm ring, connecting to the tensioner via a ring buckle. This allows for adaptation to different connection methods of existing tensioner models without requiring changes to the tensioner's structure.

[0031] In some embodiments, a first elastic element 5 is provided between the movable clamp 22 and the fixed clamp 21, giving the connecting clamp 2 a tendency to open. It is understood that the first elastic element 5 may be a torsion spring, with the torsion spring sleeved on the pivot shaft. Both the fixed clamp 21 and the movable clamp 22 are provided with at least one abutment post, which abuts against the two abutment ends of the torsion spring, respectively.

[0032] In some embodiments, two fixed clamps 21 are provided, which are parallel and spaced apart, and the movable clamp 22 and the locking mechanism 3 are both disposed between the two fixed clamps 21. Figure 3 As shown, the fixed clamp 21 includes a plug-in portion 211, a connector portion, and a connecting portion 213. The plug-in portion 211 is plugged into and fixedly connected to the rod body 1. The clamp head 212, together with the movable clamp head 22, cooperates with the tensioner. The connecting portion 213 is disposed between the plug-in portion 211 and the clamp head 212, and is used to support the movable clamp head 22 and the locking mechanism 3. It can be understood that the above configuration allows for convenient and quick assembly, and can avoid shearing forces biased to one side in clamping scenarios, preventing the tensioner from having a tendency to rotate to one side. In other embodiments, the fixed clamp 21 can also be a single fixed clamp, with the thickness of the connecting portion 213 being greater than that of the plug-in portion 211 and the clamp head 212, and the connecting portion 213 being hollow, with the locking mechanism 3 and the movable clamp head 22 disposed in the connecting portion 213.

[0033] In some embodiments, such as Figure 2 As shown, the locking mechanism 3 includes a locking rack 31 and a locking member 32. The locking rack 31 is fixedly connected to the movable chuck 22 and can rotate together with it. The locking member 32 is movably mounted on the fixed chuck 21; the locking rack 31 has ratchet teeth, and one end of the locking member 32 has a pawl. The pawl on the locking member 32 engages with the ratchet teeth of the locking rack 31 to fix the movable chuck 22. It is understood that when the operating member 4 is not pulled, the clamping head 212 of the fixed chuck 21 and the movable chuck 22 can only move unidirectionally towards one end, achieving locking and preventing the operating lever from detaching when engaged with the tensioner, thus affecting equipment and personal safety.

[0034] In some embodiments, such as Figure 4 As shown, the locking member 32 is provided with a guide groove 321. The fixed clamp 21 is provided with at least two guide posts, which cooperate with the guide groove 321 to achieve limiting and guiding, allowing the locking member 32 to slide along the length of the rod 1. Figure 2 As shown, a second elastic element 6 is provided between the locking member 32 and the fixed clamp 21 to give the locking member 32 a tendency to move toward the locking rack 31. It can be understood that the second elastic element 6 is a spring, the locking member 32 has a strip-shaped structure, and two springs are provided, located on both sides of the width direction of the locking member 32. One end of the spring is connected to the locking member 32, and the other end is connected to the connecting part 213 of the fixed clamp 21, giving the locking member 32 a tendency to move toward the locking rack 31. For example, the initial state of the spring is set to a stretched state. In the locked state, the locking member 32 engages with the locking rack 31. When unlocking, pulling the operating element 4 overcomes the spring tension and continues to stretch the spring, thus separating the locking member 32 from the locking rack 31. The movable clamp 22 automatically rotates under the action of the first elastic element 5, thus disengaging the connecting clamp 2 from the tensioner.

[0035] In an alternative embodiment, the locking member 32 is rotatably connected to the fixed clamp 21, allowing the end of the locking member 32 with the pawl to rotate. A second elastic member 6 is provided between the locking member 32 and the fixed clamp 21, giving the locking member 32 a tendency to rotate toward the locking rack 31. It is understood that the second elastic member 6 is a spring or torsion spring, positioned between the locking member 32 and the fixed clamp 21, giving the locking member 32 a tendency to move toward the locking rack 31. Understandably, when the second elastic element 6 is in the locked state, it engages the locking element 32 with the locking rack 31. Due to the distance between the locking element 32 and the locking rack 31, when rotating in one direction, it will block the rotation and prevent further rotation in that direction, thus achieving locking. When unlocking, the operating element 4 is pulled, and the operating element 4 pulls the locking element 32 to rotate in the opposite direction, causing the two to disengage and separating the locking element 32 from the locking rack 31. The movable chuck 22 rotates automatically under the action of the first elastic element 5, thus separating the connecting chuck 2 from the tensioner.

[0036] In some embodiments, such as Figure 5As shown, the locking rack 31 includes a fixing part 311 and a rack part 312. The fixing part 311 is used to connect with the movable chuck 22; the rack part 312 is arc-shaped, and ratchet teeth are provided on the rack part 312. The rack part 312 is used to cooperate with the locking member 32 to achieve locking. One end of the rack part 312 is fixedly connected to the fixing part 311. The two can be integrally formed, which is not limited here. It can be understood that the curvature of the rack part 312 is adapted to the rotation curvature of its position on the movable chuck 22, so as to avoid the movable chuck 22 from disengaging the rack part 312 from the locking member 32 or interfering with it when rotating.

[0037] In some embodiments, the rod 1 is composed of at least two pipe fittings with different diameters, which are nested together and can slide relative to each other along their axial direction. In any two adjacent pipe fittings, the inner diameter of the outer pipe fitting is larger than the outer diameter of the inner pipe fitting. Therefore, in two adjacent pipe fittings, the pipe fitting with the smaller outer diameter can be retracted into the pipe fitting with the larger inner diameter. Moreover, when the rod 1 needs to be stretched, the pipe fitting with the smaller outer diameter can be pulled out from the pipe fitting with the larger inner diameter. A constriction is provided at one end of the pipe fitting with the larger inner diameter, which serves as the stretching end of the pipe fitting with the smaller outer diameter. The end of the pipe fitting with the smaller outer diameter, away from the constriction, is flared outward, but its overall diameter is still smaller than the inner diameter of the pipe fitting with the larger inner diameter. Therefore, when the pipe fitting is stretched to a certain position, it will not automatically retract under the action of friction between the pipe fittings, thus fixing the position of the pipe fitting and preventing the two adjacent pipe fittings from separating from the stretching end. In other embodiments, each pipe fitting is provided with a snap-fit ​​part at its end. The snap-fit ​​part can prevent the pipe fitting with the smaller outer diameter from detaching from the pipe fitting with the larger inner diameter when two adjacent pipe fittings are used. Understandably, the operating component 4 is inserted and exited from the innermost pipe to avoid affecting the expansion and contraction between the pipes.

[0038] To make the pipe fittings more secure, such as Figure 1 As shown, the tensioner operating rod also includes at least one locking element 7, which can lock the tube of the rod body 1, fix the telescopic length of the rod body 1, and fix the length of the rod body 1 at any position within the telescopic length range of the rod body 1 according to the actual required length.

[0039] To facilitate understanding of the present invention, an example is given to illustrate the operation method of one embodiment of the present invention. When the tensioner operating rod disclosed in the present invention is used with the tensioner, after the connecting clamp 2 is inserted into the arm of the tensioner, the movable clamp 22 is pressed, and the movable clamp 22 will tighten. Due to the restriction of the locking mechanism 3, the connecting clamp 2 will not open under the action of the locking rack 31 and the locking member 32. At this time, the tube of the operating rod 1 can be extended and fixed, and the tensioner can be pushed. If the length is insufficient, a section of the tube can be extended again and fixed, and the tensioner can be pushed again.

[0040] When the tensioner is pushed to the appropriate position, the operating part 4, which is the pull rope, which passes through the inside of the rod 1, is pulled, which drives the locking part 32 of the locking mechanism 3 to move towards the rod 1. At this time, under the action of the torsion spring, the movable clamp 22 will open, and the entire operating rod can be disengaged from the tensioner.

[0041] The operating lever of the present invention can not only extend the distance of the external push tensioner, but also ensure that the connection between the two is stable and will not fall off when it is in cooperation with the tensioner through the locking mechanism 3. When it is necessary to detach from the tensioner, simply pull the operating part 4 to allow the movable clamp 22 to open automatically, so that the operating lever and the tensioner are detached. The operation is convenient and quick and does not affect the subsequent operation of the tensioner.

[0042] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A tensioner operating lever, characterized in that, include: Rod (1); A connecting clamp (2) is disposed at one end of the rod body (1) for cooperating with a tensioner; the connecting clamp (2) includes: a fixed clamp (21) fixedly disposed on the rod body (1); a movable clamp (22) pivotally connected to the fixed clamp (21), the movable clamp (22) being rotatable about the pivot axis, and defining a receiving space for accommodating the tensioner together with the fixed clamp (21); a first elastic element (5) is disposed between the movable clamp (22) and the fixed clamp (21) to give the connecting clamp (2) a tendency to open; A locking mechanism (3) is provided on the connecting chuck (2) and can lock the connecting chuck (2) so that the connecting chuck (2) and the tensioner are engaged. The locking mechanism (3) includes: a locking rack (31) fixedly connected to the movable chuck (22) and capable of rotating together with the movable chuck (22), and the locking rack (31) is provided with ratchet teeth; a locking member (32) is movably provided on the fixed chuck (21), and one end of the locking member (32) is provided with a pawl; wherein the pawl on the locking member (32) engages with the ratchet teeth of the locking rack (31) to fix the movable chuck (22); a second elastic member (6) is provided between the locking member (32) and the fixed chuck (21) so that the locking member (32) has a tendency to move toward the locking rack (31); The operating component (4) is connected at one end to the locking mechanism (3) and at the other end protrudes from the rod body (1); The operation of the operating component (4) drives the locking mechanism (3) to unlock, so that the connecting clamp (2) can disengage from the tensioner.

2. The tensioner operating lever according to claim 1, characterized in that, There are two fixed clamps (21), which are parallel and spaced apart.

3. The tensioner operating lever according to claim 1, characterized in that, The fixed clamp (21) includes: The insertion part (211) is inserted into the inside of the rod (1) and is fixedly connected to the rod (1); The clamp head (212) cooperates with the tensioner together with the movable clamp head (22); A connecting part (213) is disposed between the plug-in part (211) and the clamp head (212), and is used to support the movable clamp head (22) and the locking mechanism (3).

4. The tensioner operating lever according to claim 1, characterized in that, The locking member (32) is provided with a guide groove (321), and the fixing clamp (21) is provided with at least two guide posts. The at least two guide posts cooperate with the guide groove (321) to achieve guidance, so that the locking member (32) can slide along the length direction of the rod (1).

5. The tensioner operating lever according to claim 1, characterized in that, The locking rack (31) includes: A fixing part (311) is used to connect with the movable clamp (22); The rack portion (312) is arc-shaped and is provided with the ratchet teeth, which are used to cooperate with the locking member (32).

6. The tensioner operating lever according to any one of claims 1-5, characterized in that, The rod (1) is composed of at least two tubes of different diameters, and the at least two tubes are sleeved together and can slide relative to each other along their axial direction; The tensioner operating lever also includes at least one locking element (7) capable of locking the lever body (1) and fixing the telescopic length of the lever body (1).

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