Telescopic connecting rod

Abstract

The utility model discloses a telescopic connecting rod, and relates to the technical field of connecting pieces. The device comprises a hollow rod, through holes are formed in the peripheral side wall of a movable rod movably arranged in the hollow rod, through holes are formed in the outer side wall of the hollow rod, a connecting column is arranged at the upper end of the movable rod, an adjusting assembly is arranged on the outer side wall of the hollow rod, and the adjusting assembly comprises a lug connected to the side wall of a guide rail. The lug base is connected to the outer side wall of the hollow rod, a limiting rod is connected to the side wall of a pull handle arranged in the guide rail in a penetrating mode, the end of the limiting rod penetrates through the through hole, and a reset spring connected to the inner side wall of the guide rail is connected to the side wall of the pull handle in a sleeving mode; connecting assemblies are arranged at the lower end of the hollow rod and the upper end of the connecting column. The adjusting assembly is arranged, telescopic operation of the hollow rod and the movable rod is facilitated, the adjusting assembly is externally arranged, the structure is simplified, dismounting and mounting are convenient, and the connecting assembly, the damper and the damping spring are matched, so that the buffering and damping effects are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of connecting pieces, in particular to a telescopic connecting rod. Background Art

[0002] A connector refers to a device used to connect different parts or structures, such as bolts, hinges, and telescopic links. A telescopic link refers to a retractable rod-like object, usually used to support or connect two objects, and the length of the telescopic link can be adjusted manually or mechanically.

[0003] The cam is connected to the second movable plate by a hinged connection between the first and second movable plates, and the cam is connected to the second movable plate by a hinged connection between the first and second movable plates.

[0004] The above-mentioned telescopic connecting rod for CNC machine tools, the interior of the first fixed rod is slidably connected to the second fixed rod, the interior of the second fixed rod is provided with a hollow groove, the interior of the hollow groove is rotatably connected to a screw rod, the exterior of the screw rod is threadedly connected to the first movable plate through two screw nuts, the rotation directions of the two screw nuts are opposite, so as to drive the two first movable plates to move simultaneously; the front faces of the two first movable plates are fixedly installed with sliders, and the two sides of the two first movable plates are hinged with swing rods through hinges, the number of the swing rods is four, each two in a group, and the second movable plate is provided on both sides of the screw rod, and one of the swing rods in each group The two ends are hinged with the two ends of the corresponding second movable plate through a hinge, and a pin is fixedly installed on one side of the two second movable plates, and a number of pin holes matching the pin are evenly opened in the interior of the first fixed rod, which is convenient for fixing the second fixed rod; a turbine is fixedly installed at one end of the screw rod, and a vortex rod is connected to the interior of the hollow groove by rotating the rotating rod, and the turbine and the vortex rod are meshed and connected, and punctuation marks are evenly fixed on the surface of the first fixed rod, and the position of the punctuation marks corresponds to the position of the pin holes, which is convenient for observing the retracted position of the second fixed rod through the punctuation marks; a rectangular groove matching the rotating rod is opened on the front of the first fixed rod, so that the rotating rod The rod is not restricted in the process of moving. You only need to turn the handle in the opposite direction to drive the rod and the worm gear to rotate in the opposite direction at the same time. Since the worm gear and the worm gear are meshed, the screw rod rotates, and the screw rod nut is used to make the two first movable plates move relative to each other at the same time. At the same time, the hinge, the swing rod, the second movable plate and the pin shaft and the pin hole are used to increase the distance between the two first movable plates, so that the inclination angle of the corresponding swing rod is reduced, so that the two second movable plates move relative to each other at the same time, thereby separating the pin shaft from the pin hole, and then the second fixed rod is extended and retracted, and then the above steps are repeated. By turning the handle forward, the pin shaft and the pin hole can be plugged into each other. However, the adjustment part is built-in, which brings inconvenience to the disassembly and assembly operation, and the structure is relatively complicated. In addition, the top end of the first fixing rod is fixedly mounted with a first mounting plate, and the bottom end of the second fixing rod is fixedly mounted with a second mounting plate. The surfaces of the first mounting plate and the second mounting plate are evenly provided with a plurality of mounting holes, which facilitates better installation of the connecting rod. When the connecting rod is not needed, only the bolt needs to be removed. However, when subjected to vibration, it is not convenient for buffering and shock absorption, thereby reducing stability and having a single functionality.

[0005] To this end, we provide a telescopic connecting rod to solve the above problems. Utility Model Content

[0006] The purpose of the present utility model is to provide a telescopic connecting rod, which realizes the locking connection between the movable rod and the hollow rod by setting an adjustment component and adjusting the position of the limit rod, thereby realizing the telescopic operation between the movable rod and the hollow rod. The adjustment component is externally placed, and the structure of the adjustment component is simplified, which is convenient for disassembly and assembly. The connection component is set, and the cooperation of the damper and the shock-absorbing spring effectively weakens the vibration, thereby improving stability and functionality, thereby solving the technical problems raised in the background technology of the above-mentioned telescopic connecting rod for CNC machine tools.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] The cam is secured to the upper end of the ladder by means of a lever, and the lever is secured to a location where it can be moved along the ladder by a user pressing the lever to move it along the ladder. The cam is secured to the upper end of the ladder by a user pressing the lever to move it along the ladder.

[0009] The utility model is further configured such that a connecting groove is provided on the upper end surface of the movable rod, and the convex rod fixed to the lower end of the connecting column is threadedly connected to the interior of the connecting groove.

[0010] The utility model is further configured such that a connecting rod is fixedly connected to the lower end surface of the movable rod, a connecting hole is opened in the middle of the sliding seat arranged on the lower end surface of the movable rod, and the connecting rod is threadedly connected to the inside of the connecting hole.

[0011] The present invention is further configured such that sliders are fixedly connected to the peripheral side wall of the slide seat in an annular array, and sliding grooves are opened in an annular array on the inner peripheral side wall of the hollow rod, and the sliders are slidably connected inside the sliding grooves.

[0012] The utility model is further configured such that the upper end of the hollow rod is threadedly connected to a limit cover, a through hole is provided on the upper surface of the limit cover, the upper end of the movable rod passes through the through hole, and the outer diameter of the sliding seat is larger than the inner diameter of the through hole.

[0013] The present invention is further configured such that the guide rail is cylindrical in structure and the handle is L-shaped.

[0014] The present invention is further configured such that the placement plate connected to the outer side wall of the connecting plate is annular, and bolts are connected in a threaded connection in an annular array on the surface of the placement plate.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model sets an adjustment component. When the handle is pulled, the reset spring stretches, the handle moves out of the guide rail, the limit rod moves out of the through hole, the locking connection between the movable rod and the hollow rod is released, and an external force is applied to the movable rod to achieve the telescopic operation of the movable rod and the hollow rod; when the handle is released, the stretched reset spring gradually shrinks to its original state, achieving the locking connection between the movable rod and the hollow rod, and the adjustment component is externally placed for easy disassembly and assembly.

[0017] 2. The utility model sets a connecting component and rotates the bolt counterclockwise to lock the placement plate and connect it to the device, and then lock the screw cover and connect it to the device. Conversely, the screw cover and the device can be separated, and the damper and the shock-absorbing spring cooperate to effectively buffer the vibration, thereby improving the stability after connection and increasing functionality.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0020] Figure 1 A three-dimensional diagram of a telescopic connecting rod Figure 1 ;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure at center A;

[0022] Figure 3 for Figure 1 A magnified schematic diagram of the structure at point B in the middle;

[0023] Figure 4 A three-dimensional diagram of a telescopic connecting rod Figure 2 ;

[0024] Figure 5 It is an exploded schematic diagram of the connecting column, movable rod, limit cover, sliding seat and hollow rod.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] 1-hollow rod, 101-movable rod, 101a-through hole, 101b-connecting column, 101c-convex rod, 101d-connecting groove, 101e-connecting rod, 102-limiting cover, 102a-perforation, 103-slide seat, 103a-slider, 103b-connecting hole, 104-slide groove, 2-adjustment assembly, 201-handle, 202-limiting rod, 203-guide rail, 203a-ear seat, 204-reset spring, 3-connecting assembly, 301-screw cover, 302-connecting plate, 303-placement plate, 303a-bolt, 304-damper, 304a-shock-absorbing spring. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0028] Example 1

[0029] See also Figure 1 、 Figure 4 and Figure 5 The present invention is a telescopic connecting rod, comprising a hollow rod 1, a movable rod 101, a connecting column 101b, a protruding rod 101c, a connecting rod 101e, a limiting cover 102, a sliding seat 103 and a slider 103a. The limiting cover 102 is provided to prevent the movable rod 101 from moving upward out of the interior of the hollow rod 1. The sliding seat 103 cooperates with the slider 103a to limit the trajectory of the movable rod 101 moving inside the hollow rod 1, thereby improving the stability of the hollow rod 1 and the movable rod 101 during telescoping.

[0030] Specifically, the hollow rod 1 is provided with a movable rod 101 for internal movement. A through hole 101a is provided on the peripheral side wall of the hollow rod 1. The peripheral side wall of the movable rod 101 is provided with through holes 101a at equal intervals. The lower end of the connecting column 101b is connected to a protruding rod 101c. The upper end of the movable rod 101 is provided with a connecting groove 101d. The protruding rod 101c is threadedly connected to the inside of the connecting groove 101d. The lower end surface of the movable rod 101 is connected to a connecting rod 101e. The slide seat 1 The peripheral side wall of 03 is connected with a slider 103a, and the inner peripheral side wall of the hollow rod 1 is provided with a slide groove 104. The slider 103a is slidably connected to the inside of the slide groove 104, and a connecting hole 103b is provided in the middle of the slide seat 103. The connecting rod 101e is threadedly connected to the inside of the connecting hole 103b. The limiting cover 102 is threadedly connected to the upper end of the hollow rod 1, and a through hole 102a is provided in the middle of the limiting cover 102. The upper end of the movable rod 101 passes through the through hole 102a.

[0031] Furthermore, the inner diameter of the through hole 102a is smaller than the outer diameter of the slide 103, the slides 103a are arranged in a circular array, and the slide grooves 104 are opened in a circular array;

[0032] The operation process of this embodiment is as follows: the staff applies external force to the movable rod 101, the slider 103a slides along the slide groove 104, the slide seat 103 moves inside the hollow rod 1, the movable rod 101 moves, and then the position of the movable rod 101 is adjusted to realize the contraction operation of the movable rod 101 and the hollow rod 1.

[0033] Example 2

[0034] See also Figure 1 and Figure 2 On the basis of the first embodiment, an adjustment assembly 2 is provided. The adjustment assembly 2 includes a handle 201, a limiting rod 202, a guide rail 203, an ear seat 203a and a return spring 204. By adjusting the position of the handle 201, the position of the limiting rod 202 is adjusted, thereby realizing the locking connection between the movable rod 101 and the hollow rod 1 by the limiting rod 202, or releasing the locking connection between the hollow rod 1 and the movable rod 101. The adjustment assembly 2 is externally arranged for easy disassembly and assembly.

[0035] Specifically, an ear seat 203a is connected to the side wall of the guide rail 203, and the ear seat 203a is connected to the outer wall of the hollow rod 1, and a pull handle 201 is provided inside the guide rail 203, one end of the return spring 204 is connected to the inner wall of the guide rail 203, and the return spring 204 is sleeved on the peripheral side wall of the pull handle 201, the limiting rod 202 is connected to the side wall of the pull handle 201, and the limiting rod 202 passes through the through hole 101a; 2-adjustment component, 201-pull handle, 202-limiting rod, 203-guide rail, 203a-ear seat, 204-return spring,

[0036] Furthermore, the handle 201 is L-shaped, the guide rail 203 is cylindrical, and the return spring 204 is parallel to the limit rod 202;

[0037] The operating process of this embodiment is as follows: the staff pulls the handle 201, the return spring 204 stretches, the handle 201 moves out of the interior of the guide rail 203, and the limit rod 202 moves out of the through hole 101a on the movable rod 101, releasing the locking connection between the movable rod 101 and the hollow rod 1 by the limit rod 202; when the staff releases the handle 201, the stretched return spring 204 gradually shrinks to its original state, the handle 201 enters the interior of the guide rail 203, and the limit rod 202 passes through the through holes 101a on the movable rod 101 and the hollow rod 1, locking the hollow rod 1 and the movable rod 101.

[0038] Example 3

[0039] See also Figure 1 and Figure 3 Based on the first and second embodiments, a connection assembly 3 is provided. The connection assembly 3 includes a screw cap 301, a connection plate 302, a placement plate 303, a bolt 303a, a damper 304, and a shock-absorbing spring 304a. The bolt 303a is provided for disassembly and assembly between the connection plate 302 and an external device. The damper 304 cooperates with the shock-absorbing spring 304a to buffer and reduce vibration, thereby improving the stability of the connection.

[0040] Specifically, the upper end of the connecting column 101b is threadedly connected to the screw cover 301, and the lower end of the hollow rod 1 is threadedly connected to the screw cover 301. The outer side of the screw cover 301 is connected to the damper 304, and the peripheral side wall of the damper 304 is sleeved with a shock-absorbing spring 304a. The surface of the connecting plate 302 is connected to the surface of the damper 304 away from the screw cover 301. The placement plate 303 is sleeved on the peripheral side wall of the connecting plate 302, and the surface of the placement plate 303 is threadedly connected to a bolt 303a.

[0041] Furthermore, two connection components 3 are provided, the screw cap 301 is in the shape of a bottle cap, the bolts 303a are arranged in a circular array, and the dampers 304 are arranged in a circular array;

[0042] The operation process of this embodiment is: bring the connecting plate 302 into contact with the connecting surface, rotate the bolt 303a counterclockwise, and lock the screw cover 301 on the connecting surface; when the bolt 303a is rotated counterclockwise, the screw cover 301 and the connecting surface are separated; when the connecting surface is affected by vibration, the damper 304 cooperates with the shock-absorbing spring 304a to effectively weaken the vibration.

[0043] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. A telescopic connecting rod, comprising a hollow rod (1), a movable rod (101) movably arranged inside the hollow rod (1), a through hole (101a) being provided on the peripheral side wall thereof, a through hole (101a) being provided on the outer side wall thereof, and a connecting column (101b) being provided on the upper end of the movable rod (101), characterized in that: An adjustment assembly (2) is provided on the outer wall of the hollow rod (1), and the adjustment assembly (2) includes an ear seat (203a) connected to the side wall of the guide rail (203), and the ear seat (203a) is connected to the outer wall of the hollow rod (1), and a limiting rod (202) is connected to the side wall of the handle (201) provided inside the guide rail (203), and the end of the limiting rod (202) passes through the through hole (101a), and a return spring (204) connected to the inner wall of the guide rail (203) is sleeved on the side wall of the handle (201); The lower end of the hollow rod (1) and the upper end of the connecting column (101b) are both provided with a connecting assembly (3), the connecting assembly (3) comprising a damper (304) connected to the outer wall of the screw cover (301), a shock-absorbing spring (304a) sleeved on the peripheral side wall of the damper (304), and a connecting plate (302) connected to the surface of the shock-absorbing spring (304a) away from the screw cover (301), and the lower end of the hollow rod (1) and the upper end of the connecting column (101b) are both threadedly connected to the screw cover (301).

2. The telescopic connecting rod according to claim 1, characterized in that: A connecting groove (101d) is provided on the upper end surface of the movable rod (101), and a protruding rod (101c) fixed to the lower end of the connecting column (101b) is threadedly connected to the interior of the connecting groove (101d).

3. The telescopic connecting rod according to claim 2, characterized in that: A connecting rod (101e) is fixedly connected to the lower end surface of the movable rod (101), a connecting hole (103b) is opened in the middle of a sliding seat (103) provided on the lower end surface of the movable rod (101), and the connecting rod (101e) is threadedly connected to the inside of the connecting hole (103b).

4. The telescopic connecting rod according to claim 3, characterized in that: Slide blocks (103a) are fixedly connected in an annular array on the peripheral side wall of the slide seat (103), and slide grooves (104) are opened in an annular array on the inner peripheral side wall of the hollow rod (1), and the slide blocks (103a) are slidably connected inside the slide grooves (104).

5. The telescopic connecting rod according to claim 4, characterized in that: The upper end of the hollow rod (1) is threadedly connected to a limit cover (102), a through hole (102a) is provided on the upper surface of the limit cover (102), the upper end of the movable rod (101) passes through the through hole (102a), and the outer diameter of the sliding seat (103) is larger than the inner diameter of the through hole (102a).

6. The telescopic connecting rod according to claim 1, characterized in that: The guide rail (203) is cylindrical in structure, and the handle (201) is L-shaped.

7. The telescopic connecting rod according to claim 1, characterized in that: The placement plate (303) connected to the outer side wall of the connection plate (302) is annular in shape, and bolts (303a) are threadedly connected in an annular array on the surface of the placement plate (303).

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