Eccentric transmission structure of gradienter

Abstract

The eccentric transmission structure comprises a base, a transmission disc, a transmission gear, a worm and a sliding assembly, the transmission gear and the transmission disc are rotatably installed in the base, the worm is installed in the base, the worm is connected with the transmission gear in a meshed mode, and the sliding assembly is connected with the transmission gear in a meshed mode. The transmission gear is in meshed connection with the transmission disc, an eccentric vertical rod is arranged above the transmission disc, the sliding assembly comprises a connecting part and a sliding part, a connecting hole is formed in the connecting part, the eccentric vertical rod is inserted into the connecting hole, an arc-shaped groove is formed in the base, and the sliding part reciprocates in the arc-shaped groove. According to the eccentric transmission structure of the gradienter, errors caused by center rotation can be eliminated, so that the intersection point of laser rays is dynamically aligned with the sliding assembly, and the positioning accuracy of the gradienter is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to level technology field especially relates to a level eccentric transmission structure. BACKGROUND

[0002] The laser level is used for positioning and lofting of building, decoration and decoration engineering; in the engineering, the vertical laser plane often needs to be accurately aimed at the reference target, that is, positioning is carried out through two vertical intersecting straight lines.

[0003] But the level rotation structure on the market at present surrounds the instrument center, and positioning is inconvenient in the use process, and positioning error is easy to produce. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a level eccentric transmission structure, and solves the problems mentioned in the above background technology.

[0005] In order to solve the above technical problem, the utility model adopts the technical scheme that:

[0006] A level eccentric transmission structure, including base, transmission disc, transmission gear, worm and sliding assembly, transmission gear and transmission disc rotatablely installed in the inside of base, worm is installed in the inside of base, worm is connected with transmission gear, transmission gear is connected with transmission disc, the top of transmission disc is provided with eccentric vertical rod, sliding assembly includes connecting part and sliding part, connecting hole is arranged on the connecting part, eccentric vertical rod is inserted in connecting hole, arc slot is arranged on the base, and the sliding part does reciprocating motion in the arc slot.

[0007] Further, the base includes detachably connected upper shell and lower shell, and the upper shell is provided with an arc slot.

[0008] Further, the center of the sliding part is coincident with the laser line emitting point.

[0009] Further, the connecting hole is a linear long hole.

[0010] Further, the upper side of the sliding part is provided with a convex part matched with the arc slot, and the convex part does reciprocating motion in the arc slot.

[0011] Further, the transmission disc includes disc surface and gear part fixedly connected in sequence, and the gear part is connected with the transmission gear.

[0012] Further, one end of the worm is connected with the output shaft of the motor.

[0013] Beneficial effects:

[0014] The eccentric transmission structure of the leveler can eliminate the error caused by the center rotation, the laser line intersection point is dynamically aligned with the sliding assembly, and the positioning accuracy of the leveler is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is an overall structure schematic view of the utility model;

[0016] Figure 2 It is an internal structure schematic view of the utility model;

[0017] Figure 3 The structure schematic view of the worm, the transmission gear and the transmission disc in the utility model.

[0018] In the drawing, 1 is a base, 2 is a worm, 3 is a transmission gear, 4 is a transmission disc, 5 is a sliding part, 6 is a connecting part, 7 is a convex part, 8 is a motor, 9 is a connecting hole, 10 is an eccentric vertical rod, 11 is a circuit board, 12 is a battery, and 13 is an arc-shaped slot. DETAILED DESCRIPTION

[0019] In the description of the embodiment, it should be noted that the positions or location relations indicated by the terms "upper", "lower" and the like are based on the positions or location relations shown in the drawings or the positions or location relations commonly used when the utility model product is used, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and the like should be understood broadly, for example, can be fixedly connected, can be detachably connected, or can be integrally connected; can be directly connected, can be indirectly connected through an intermediate medium, or can be connected inside two elements. For ordinary skilled persons in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0020] In addition, unless otherwise specified, the components used in the following embodiments are existing components, and the corresponding connection methods can also be realized by conventional technical means, which will not be described one by one in this application. The utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0021] EMBODIMENT

[0022] An eccentric transmission structure of a leveler, such as Figure 1 and Figure 2As shown, the level eccentric transmission structure comprises a base 1, a transmission disc 4, a transmission gear 3, a worm 2 and a sliding assembly, the transmission gear 3 and the transmission disc 4 are rotatably installed inside the base 1, the worm 2 is installed inside the base 1, the worm 2 is in meshing connection with the transmission gear 3, the transmission gear 3 is in meshing connection with the transmission disc 4, an eccentric vertical rod 10 is arranged above the transmission disc 4, the sliding assembly comprises a connecting part 6 and a sliding part 5, the connecting part 6 is provided with a connecting hole 9, the eccentric vertical rod 10 is inserted into the connecting hole 9, the base 1 is provided with an arc-shaped groove 13, and the sliding part 5 reciprocates in the arc-shaped groove 13.

[0023] Specifically, the level eccentric transmission structure in the embodiment is located inside the base 1 of the laser level, the worm 2 is in meshing connection with the transmission gear 3, the transmission gear 3 is in meshing connection with the transmission disc 4, thus the transmission disc 4 can be driven to rotate when the worm 2 rotates, an eccentric vertical rod 10 is arranged above the transmission disc 4, the eccentric vertical rod 10 is inserted into the connecting hole 9 of the connecting part 6 of the sliding assembly, with the rotation of the transmission disc 4, the eccentric vertical rod 10 starts to rotate, because the connecting hole 9 is a linear long hole, thus the eccentric vertical rod 10 moves in the connecting hole 9, thereby driving the sliding part 5 to do linear reciprocating motion, the sliding part 5 is arc-shaped, the extension line of the connecting hole 9 intersects with the center of the sliding part 5, the connecting hole 9 is aligned with the axis of the arc-shaped groove 13, thus the sliding part 5 reciprocates in the arc-shaped groove 13. The eccentric distance of the eccentric vertical rod 10 is matched with the movement of the sliding part 5.

[0024] Preferably, the base 1 comprises a detachably connected upper shell and a lower shell, the upper shell is provided with the arc-shaped groove 13, the upper side of the sliding part 5 is provided with a protruding part 7 matched with the arc-shaped groove 13, and the protruding part 7 reciprocates in the arc-shaped groove 13. The arc-shaped groove 13 can guide the movement track of the sliding part 5, and ensure that the movement direction is consistent with the demand of laser line calibration. The protruding part 7 is inserted into the arc-shaped groove 13, and can reciprocate in the arc-shaped groove 13 with the movement of the sliding part 5, the level body can be connected with the protruding part 7, thereby adjusting the position of the level.

[0025] Preferably, the center of the sliding part 5 coincides with the laser line emitting point, thereby ensuring the positioning accuracy of the laser level.

[0026] Preferably, the transmission disc 4 comprises a disc surface and a gear part fixedly connected in sequence, the gear part is in meshing connection with the transmission gear 3, after the worm 2 drives the transmission gear 3 to rotate, the transmission gear 3 drives the transmission disc 4 to rotate, thereby forming a speed reduction transmission, and ensuring that the accuracy of the adjustment process is controllable.

[0027] Preferably, one end of the worm 2 is connected with the output shaft of the motor 8, and the motor 8 drives the rotation of the worm 2.

[0028] It should be noted that the base 1 in the embodiment is the same as the base of the existing level in other aspects of structure and working principle, such as including the circuit board 11, the battery 12 and the like, which will not be repeated here.

[0029] Although the embodiments of the present application are described in the specification, these embodiments are only as a hint, and should not limit the protection scope of the present application. Various omissions, substitutions and changes made within the scope of the purpose of the present application should be included in the protection scope of the present application.

Claims

1. An eccentric transmission structure for a level, characterized in that: The application relates to a transmission device, which comprises a base, a transmission disc, a transmission gear, a worm and a sliding assembly, the transmission disc and the transmission gear are rotatably arranged in the base, the worm is arranged in the base, the worm is connected with the transmission gear in a meshing mode, the transmission gear is connected with the transmission disc in a meshing mode, an eccentric vertical rod is arranged above the transmission disc, the sliding assembly comprises a connecting part and a sliding part, the connecting part is provided with a connecting hole, the eccentric vertical rod is inserted into the connecting hole, an arc-shaped groove is arranged on the base, and the sliding part does reciprocating motion in the arc-shaped groove.

2. The eccentric drive of a level according to claim 1, characterized in that: The base comprises detachably connected upper and lower shells, and the upper shell is provided with the arc-shaped groove.

3. The eccentric drive of a level according to claim 1, wherein: The center of the sliding part is coincident with a laser line emitting point.

4. The eccentric drive of a level according to claim 1, wherein: The connecting hole is a linear long slot.

5. The eccentric drive of a level according to claim 1, wherein: A convex part which is matched with the arc-shaped groove is arranged above the sliding part, and the convex part does reciprocating motion in the arc-shaped groove.

6. The eccentric drive of a level according to claim 1, wherein: The transmission disc comprises a disc surface and a gear part which are fixedly connected in an up-down mode, and the gear part is connected with the transmission gear in a meshing mode.

7. The eccentric drive of a level according to any one of claims 1 to 6, characterized in that: One end of the worm is connected with an output shaft of a motor.

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