Adjustable eccentric shaft lock pin mechanism

Abstract

The utility model discloses an adjustable eccentric shaft lock pin mechanism, which belongs to the technical field of guiding and limiting, and comprises a rack, a limiting piece and a lock pin structure, an eccentric shaft is inserted on one side of the rack, a fixed shaft is arranged on the other side of the rack, the eccentric shaft and the fixed shaft are respectively provided with a guide wheel, the eccentric shaft can rotate freely, and the lock pin structure is arranged on the limiting piece. Therefore, the guide wheels on the eccentric shaft can swing freely, and the technical effect that the guide rails are clamped through the two guide wheels is achieved. For fixing the position of the guide wheel, a limiting piece is rotationally arranged on the eccentric shaft, meanwhile, a limiting gear is installed on the eccentric shaft and can be in coaxial transmission connection with the eccentric shaft, and on the basis, the limiting gear is suitable for being matched and meshed with the limiting piece through gear teeth and driving the eccentric shaft to rotate through the limiting piece. The lock pin structure inserted in the limiting piece can penetrate through the limiting piece to be inserted into the machine frame so as to fix the relative position of the limiting piece and the machine frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of guiding and limiting, and particularly relates to an adjustable eccentric shaft lock pin mechanism. BACKGROUND

[0002] When a house is decorated, the wall is often excavated to install doors, windows or wardrobes to meet the needs of customers, but in the process of excavation, the wall structure is easily damaged to cause safety hazards, so a sawing method is usually used to process the wall during construction.

[0003] In addition, in order to ensure the stability and precision of sawing, the sawing guide needs to be conducted through a guide rail, and the guide wheel and the guide rail are prevented from falling off, so the applicant proposes a new technical scheme, so that the guide wheel can be quickly clamped and stably run on the guide rail, and the effect of quickly disassembling the guide wheel is realized. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model provides an adjustable eccentric shaft lock pin mechanism to realize the effect of quickly and stably clamping the guide rail by the guide wheel.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The adjustable eccentric shaft lock pin mechanism disclosed by the utility model has a pair of guide wheels installed at the end, clamps the guide rail through the pair of guide wheels, the driving device drives the guide wheel to move along the guide rail, and comprises:

[0007] The rack has an eccentric shaft inserted on one side and a fixed shaft installed on the other side, and one guide wheel is installed on the eccentric shaft and the fixed shaft;

[0008] The limiting piece is rotationally arranged on the eccentric shaft, a limiting gear is installed on the eccentric shaft, and the limiting gear is coaxially connected in transmission with the eccentric shaft;

[0009] The lock pin structure is inserted in the limiting piece and is suitable for being inserted into the rack through the limiting piece to fix the relative position of the limiting piece and the rack.

[0010] The limiting gear is suitable for being matched and engaged with the limiting piece through the gear teeth and is suitable for driving the eccentric shaft to rotate through the limiting piece.

[0011] Further, the limiting piece comprises:

[0012] The shell has an internal tooth groove arranged inside, the internal tooth groove is suitable for being inserted into the limiting gear and matched with the limiting gear;

[0013] The lock hole has the lock pin structure inserted inside, and the shell is arranged in the shell.

[0014] Further, a handle is mounted on the outside of the shell, and the handle is screwed on the outside of the shell and adapted to abut against the lock pin structure.

[0015] Further, the lock pin structure comprises:

[0016] A handle is connected to the pin shaft at the end, and the pin shaft is slidingly inserted into the lock hole;

[0017] A spring is abutted against the shell at one end and pushes the pin shaft into the rack at the other end.

[0018] Further, the rack comprises a rack body and a pair of mounting shaft holes, and the eccentric shaft and the fixed shaft are mounted in the pair of mounting shaft holes.

[0019] Further, the eccentric shaft comprises:

[0020] An eccentric disc is provided with an axle on the front surface, and the guide wheel is sleeved on the axle, and the eccentric disc is provided with a rotary shaft on the front surface, and the rotary shaft is rotationally arranged in the mounting shaft hole;

[0021] A mounting shaft is coaxially connected with the rotary shaft through a connecting shaft at the first end, and the mounting shaft is sleeved with a limiting gear, and the limiting gear is adapted to drive the mounting shaft to rotate;

[0022] The mounting shaft is arranged in a staggered manner with the axle.

[0023] The utility model has the advantages of:

[0024] The adjustable eccentric shaft lock pin mechanism disclosed by the utility model drives one guide wheel to swing through the eccentric shaft, so that the guide wheel and another guide wheel mounted on the rack jointly clamp the guide rail, but when the driving device is started, the two guide wheels can roll along the guide rail, at the same time, through the cooperation of the limiting piece and the limiting gear, the eccentric shaft is fixed by the lock pin structure, so that the stability of the eccentric shaft during operation can be ensured, and the problem that the equipment falls off due to loosening is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other implementation drawings can be obtained according to the provided drawings without creative labor.

[0026] The structure, proportion, size and the like shown in the specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the implementation conditions of the utility model, so they do not have the technical essence, any modification of structure, change of proportion relationship or adjustment of size, as long as it does not affect the effect and purpose of the utility model, it should still fall within the scope of the technical content disclosed by the utility model.

[0027] Figure 1 The adjustable eccentric shaft locking pin mechanism provided by the utility model is shown in a perspective view.

[0028] Figure 2 The locking pin structure provided by the utility model is shown in a perspective view.

[0029] Figure 3 The limiting piece provided by the utility model is shown in a perspective view.

[0030] Figure 4 The eccentric shaft provided by the utility model is shown in a perspective view.

[0031] Figure 5 The adjustable eccentric shaft locking pin mechanism provided by the utility model is shown in an assembled perspective view.

[0032] In the figure: 1 frame; 11 frame body; 12 mounting shaft hole; 2 eccentric shaft; 21 eccentric disc; 22 wheel shaft; 23 rotary shaft; 24 mounting shaft; 3 limiting piece; 31 shell; 32 inner tooth groove; 33 locking hole; 4 limiting gear; 5 locking pin structure; 51 lever handle; 52 pin shaft; 53 spring; 6 handle; 7 fixed shaft. DETAILED DESCRIPTION

[0033] The embodiments of the utility model will be described below by specific examples, and those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification. Obviously, the described embodiments are part of the embodiments of the utility model, not all. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0034] Please refer to Figures 1-5 The utility model discloses a kind of adjustable eccentric shaft locking pin mechanism, one pair of guide wheels is installed at end, and is clamped guide rail by one pair of guide wheels, driving device drives guide wheel to move along guide rail, the following is explained to this technical scheme in the mode of specific embodiment.

[0035] In one specific embodiment of the utility model discloses, adjustable eccentric shaft locking pin mechanism includes frame 1, limiting piece 3 and locking pin structure 5, and one side of frame 1 is inserted with eccentric shaft 2, and the other side is installed with fixed shaft 7, and each installation is equipped with a guide wheel on eccentric shaft 2 and fixed shaft 7, specifically, in the embodiment, frame 1 includes frame body 11 and a pair of mounting shaft hole 12, and a pair of mounting shaft hole 12 is installed with eccentric shaft 2 and fixed shaft 7.Eccentric shaft 2 can rotate freely, so that the guide wheel on eccentric shaft 2 can swing freely, so as to realize the technical effect of clamping guide rail by two guide wheels.And to fix the position of guide wheel, limiting piece 3 is rotatably arranged on eccentric shaft 2, and limiting gear 4 is installed on eccentric shaft 2, limiting gear 4 can be coaxially connected with eccentric shaft 2, on this basis, wherein, limiting gear 4 is adapted to be matched with limiting piece 3 by gear teeth and drive eccentric shaft 2 to rotate by limiting piece 3.And the locking pin structure 5 inserted in limiting piece 3 can be inserted into frame 1 through limiting piece 3 to fix the relative position of limiting piece 3 and frame 1.

[0036] In one specific embodiment of the utility model discloses, limiting piece 3 includes shell 31, inner tooth groove 32 and lock hole 33, and the inner tooth groove 32 is provided in the shell 31, and the inner tooth groove 32 is adapted to be inserted into the limiting gear 4 and cooperate with the limiting gear 4.And the inner tooth groove 32 is also provided in the shell 31, and the inner tooth groove 32 is arranged in the inside of shell 31 and cooperates with limiting gear 4.

[0037] In one specific embodiment of the utility model discloses, the outer side of shell 31 is installed with handle 6, and handle 6 is screwed on the outer side of shell 31, in the embodiment, handle 6 is loaded into handle 6 by screwing, so that handle 6 locking pin structure 5 can be abutted, so that the eccentric shaft can be effectively fixed, thereby improving the stability of the guide wheel on the guide rail.

[0038] In one specific embodiment of the utility model discloses, locking pin structure 5 includes pull handle 51 and spring 53, and the end of pull handle 51 is connected with pin shaft 52, and pin shaft 52 is slidably inserted in lock hole 33, on this basis, one end of spring 53 abuts against shell 31, and the other end pushes pin shaft 52 to insert into frame 1.

[0039] In some embodiments, eccentric shaft 2 includes eccentric disc 21 and mounting shaft 24, and the front surface of eccentric disc 21 is provided with wheel shaft 22, and the wheel shaft 22 is sleeved with a guide wheel, and the aspect of eccentric disc 21 is provided with rotary shaft 23, and the rotary shaft 23 is rotatably arranged in mounting shaft hole 12, wherein, the mounting shaft 24 is arranged in dislocation with the wheel shaft 22.And the first end of mounting shaft 24 is coaxially connected with rotary shaft 23 through a connecting shaft, and mounting shaft 24 is sleeved with limiting gear 4, and limiting gear 4 is adapted to drive mounting shaft 24 to rotate.

[0040] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. An adjustable eccentric shaft locking pin mechanism, wherein a pair of guide wheels are mounted at the end, and a guide rail is clamped by the pair of guide wheels, and a driving device drives the guide wheels to move along the guide rail, characterized in that, include: The frame (1) has an eccentric shaft (2) inserted on one side and a fixed shaft (7) installed on the other side. Each of the eccentric shaft (2) and the fixed shaft (7) is equipped with a guide wheel. A limiting member (3) is rotatably mounted on the eccentric shaft (2), and a limiting gear (4) is installed on the eccentric shaft (2). The limiting gear (4) is coaxially connected to the eccentric shaft (2). A locking pin structure (5) is inserted into the limiting member (3) and is adapted to pass through the limiting member (3) and be inserted into the frame (1) to fix the relative position of the limiting member (3) and the frame (1); The limiting gear (4) is adapted to mesh with the limiting member (3) through its teeth and drive the eccentric shaft (2) to rotate through the limiting member (3).

2. The adjustable eccentric shaft locking pin mechanism as described in claim 1, characterized in that, The limiting member (3) includes: The housing (31) has an internal toothed groove (32) inside, which is adapted to be inserted into the limiting gear (4) and to cooperate with the limiting gear (4); The lock hole (33) is provided with the locking pin structure (5) inserted inside, and the housing (31) is disposed inside the housing (31).

3. The adjustable eccentric shaft locking pin mechanism as described in claim 2, characterized in that, A handle (6) is installed on the outside of the housing (31), the handle (6) is screwed onto the outside of the housing (31) and is adapted to abut against the locking pin structure (5).

4. The adjustable eccentric shaft locking pin mechanism as described in claim 3, characterized in that, The locking pin structure (5) includes: The end of the pull handle (51) is connected to the pin (52), which is slidably inserted into the lock hole (33); A spring (53) has one end abutting against the housing (31) and the other end pushing the pin (52) into the frame (1).

5. The adjustable eccentric shaft locking pin mechanism as described in claim 1, characterized in that, The frame (1) includes a frame body (11) and a pair of mounting shaft holes (12), on which the eccentric shaft (2) and the fixed shaft (7) are mounted.

6. The adjustable eccentric shaft locking pin mechanism as described in claim 5, characterized in that, The eccentric shaft (2) includes: An eccentric disk (21) has a wheel axle (22) on its front side, and a guide wheel is sleeved on the wheel axle (22). A rotating shaft (23) is provided on the other side of the eccentric disk (21), and the rotating shaft (23) is rotatably disposed in the mounting shaft hole (12). The mounting shaft (24) is connected to the rotary shaft (23) via a coupling at its first end. The mounting shaft (24) is fitted with a limiting gear (4), which is adapted to drive the mounting shaft (24) to rotate. The mounting shaft (24) is offset from the wheel axle (22).

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