CN209799701U - Electric cylinder driven motor caravan tail door opening and closing mechanism - Google Patents

Abstract

The utility model provides an electronic jar driven sojourn car tail door mechanism that opens and shuts, includes rope and pulley, the pulley includes the outer injection moulding body of becket periphery including interior becket and the pouring, the outer periphery wall of pulley sets up the cyclic annular cell body of indent with the holding the rope, the cross section of cyclic annular cell body includes two last straight sections, end segmental arc, the last segmental arc of two symmetrical settings, the lower oblique line section of two symmetrical settings that bilateral symmetry set up, the bottom of two last straight sections is connected with the top of two last segmental arc respectively, the top of two lower oblique line sections is connected with the bottom of two last segmental arc respectively, and the bottom of two lower oblique line sections is connected with two tops of end segmental arc respectively, and the junction of cyclic annular cell body and the outer periphery wall of pulley sets up the annular flange of elasticity of evagination. The rope of sojourn rear door opening and closing mechanism can smoothly slide along the pulley, and the rope can slide along the pulley and not hit in order to deviate from by accident, and the pulley possesses the gliding of sufficient intensity support rope.

Description

Electric cylinder driven motor caravan tail door opening and closing mechanism

Technical Field

The utility model relates to a motor caravan technical field, concretely relates to electronic jar driven motor caravan rear of a vehicle door mechanism that opens and shuts.

Background

As a recreational vehicle, maximizing the space used is generally a goal sought by those skilled in the art. In order to maximize the available space of the motor caravan, in recent years, the motor caravan is generally provided with a tail gate at the rear end thereof. The tail gate can be opened in a horizontal state, and can be folded in a vertical state to be attached to the tail of the motor caravan body. When the motor caravan is opened, the tail gate in the horizontal state can greatly expand the use area outside the motor caravan.

The tail gate with the above structure is generally opened in a horizontal state by using a rope, a pulley, a winch and the like, and is gradually opened and closed in the process of releasing and retracting the rope along the pulley. In the actual use process, whether the rope can smoothly slide along the pulley without being accidentally impacted to be separated, whether the pulley has enough strength to support the sliding of the rope, and the like, always needs to be continuously innovated and improved by technicians in the field.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the electric cylinder driven motor caravan tail door opening and closing mechanism can at least partially solve the technical problem.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides an electronic jar driven sojourn car tail door mechanism that opens and shuts, includes rope and pulley, the pulley includes the outer injection molding body of becket periphery including interior becket and the pouring, the outer periphery wall of pulley sets up the cyclic annular cell body of indent with the holding the rope, the cross section of cyclic annular cell body includes the last segmental arc of bilateral symmetry setting, end segmental arc, the lower oblique line section of two symmetrical settings, the bottom of two segmental arcs of going up is connected with the top of two segmental arcs respectively, the top of two lower oblique line sections is connected with the bottom of two segmental arcs respectively, the bottom of two lower oblique line sections is connected with two tops of end segmental arc respectively, the junction of cyclic annular cell body and the outer periphery wall of pulley sets up the annular flange of elasticity of evagination.

In some embodiments, the distance from the inner ring of the inner metal ring to the inner ring of the pulley, the distance from the two sides of the inner metal ring to the two sides of the pulley, and the distance from the outer ring of the inner metal ring to the bottom arc segment are equal, so that the thickness of the plastic injected on the periphery of the inner metal ring is kept approximately consistent, and balanced strength is kept and the injection molding is facilitated.

In some embodiments, the vertical height of the upper straight section is greater than the vertical distance from the top of the upper arc-shaped section to the bottom of the upper arc-shaped section, so that the depth of the annular groove body is effectively increased, and the rope is further prevented from falling off.

In some embodiments, the resilient annular rib is integrally injection molded with the pulley, the injection molded annular rib providing resiliency.

In some embodiments, the elastic annular flanges are convexly arranged along a center line of an included angle between the upper straight section and the outer circumferential wall of the pulley, so that the two elastic annular flanges are oppositely arranged to form an effective anti-dropping effect on the rope.

Compared with the prior art, the utility model discloses in, through the setting of interior becket for the intensity of pulley is effectively increased, has ensured the long-time result of use of pulley, has prolonged the use and has changed the cycle. The utility model discloses in, the cross section of cyclic annular cell body sets up the straight section of two symmetries, make the cell body possess certain degree of depth, in addition the setting of the lower chute section of two symmetries, make the rope reliably press from both sides and slide in this section cell body that is the V-arrangement that the width diminishes gradually, add the cooperation setting of the last segmental arc of two symmetries, end segmental arc again, slide under the state that in-process and tail-gate are opened by the horizontality at whole, through many times experimental verification, can both effectively ensure the jump of rope and take off. In addition, under the arrangement of the elastic annular flanges, the rope can effectively avoid the phenomenon of escaping, and the elastic annular flanges have elasticity and cannot cause obstacles to the sliding of the rope.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of a motor caravan with a tail gate opening and closing mechanism of the utility model.

Fig. 2 is the utility model discloses an electronic jar driven sojourn in rear of a vehicle door mechanism's pulley's sectional structure schematic diagram.

Fig. 3 is the utility model discloses an electric cylinder driven sojourn in rear of a vehicle door mechanism's pulley's schematic structure.

The pulley comprises a rope 1, a pulley 2, an inner metal ring 3, an outer injection molding body 4, an annular groove body 5, an upper straight section 51, a bottom arc section 52, an upper arc section 53, a lower inclined line section 54 and an elastic annular flange 6.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In the drawings of the embodiments shown in the present application, fig. 1 is a schematic structural view of a motor caravan equipped with a tailgate opening and closing mechanism of the present invention. Fig. 2 is the utility model discloses an electronic jar driven sojourn in rear of a vehicle door mechanism's pulley's sectional structure schematic diagram. Fig. 3 is the utility model discloses an electric cylinder driven sojourn in rear of a vehicle door mechanism's pulley's schematic structure.

The utility model provides an electronic cylinder driven sojourn car tail door mechanism that opens and shuts, this electronic cylinder driven sojourn car tail door mechanism that opens and shuts include rope 1 and pulley 2, pulley 2 includes the outer injection moulding body 4 of 3 peripheries of inner metal ring 3 and pouring including inner metal ring 3.

In this embodiment, the outer circumferential wall of the pulley 2 is provided with a recessed annular groove 5 for accommodating the rope 1. The cross section of the annular groove body 5 comprises two upper straight sections 51, a bottom arc section 52, two upper arc sections 53 and two lower inclined line sections 54 which are symmetrically arranged.

The bottoms of the two upper straight sections 51 are respectively connected with the tops of the two upper arc-shaped sections 53, the tops of the two lower inclined line sections 54 are respectively connected with the bottoms of the two upper arc-shaped sections 53, and the bottoms of the two lower inclined line sections 54 are respectively connected with the two tops of the bottom arc-shaped section 52.

In the embodiment, in order to further prevent the rope from escaping, a convex elastic annular rib 6 is arranged at the joint of the annular groove body 5 and the outer circumferential wall of the pulley 2. The cross section of the elastic annular rib 6 is long and rectangular and has elasticity.

In the present embodiment, the distance from the inner ring of the inner metal ring 3 to the inner ring of the pulley 2, the distance from both sides of the inner metal ring 3 to both sides of the pulley 2, and the distance from the outer ring of the inner metal ring 3 to the bottom arc segment 52 are equal. Of course, here equal distances allow for some deviation, within 0.5 mm.

The vertical height of the upper straight segment 51 is greater than the vertical distance from the top of the upper curved segment 53 to the bottom of the bottom curved segment 52. The annular groove body 5 has a deeper depth to accommodate the rope, and can play a certain role in hindering the jumping off of the rope.

The elastic annular rib 6 and the pulley 2 are integrally formed by injection molding, the whole body is formed by injection molding of plastic, and the elastic annular rib has certain elasticity, so that the normal sliding of the rope is not hindered.

As for the outward protruding direction of the elastic annular rib 6, the elastic annular rib 6 is outward protruding along the center line direction of the included angle between the upper straight section 51 and the outer circumferential wall of the pulley 2.

The utility model discloses an electronic jar driven sojourn car tail-door mechanism that opens and shuts can effectively ensure the intensity of pulley on the one hand for the pulley can prolong its life, and the setting of the cyclic annular cell body of on the other hand pulley and the cyclic annular flange of elasticity can play the hindrance effect to the jump of rope takes off, makes the rope be in the tail-gate and opens, draws in, the in-process that uses is opened completely to the horizontality, can keep using with the cooperation of the cyclic annular cell body of pulley, has avoided scurrying the emergence of taking off the phenomenon.

Claims (5)

1. The utility model provides an electronic jar driven sojourn car tail door mechanism that opens and shuts, includes rope (1) and pulley (2), its characterized in that: the pulley (2) comprises an inner metal ring (3) and an outer injection molding body (4) poured on the periphery of the inner metal ring (3), the outer circumferential wall of the pulley (2) is provided with an inwards concave annular groove body (5) for accommodating the rope (1), the cross section of the annular groove body (5) comprises two upper straight sections (51) which are arranged in bilateral symmetry, a bottom arc section (52), two upper arc sections (53) which are arranged in symmetry, and two lower inclined line sections (54) which are arranged in symmetry, the bottoms of the two upper straight sections (51) are respectively connected with the tops of the two upper arc sections (53), the tops of the two lower oblique line segments (54) are respectively connected with the bottoms of the two upper arc segments (53), the bottoms of the two lower oblique line segments (54) are respectively connected with the two tops of the bottom arc-shaped segment (52), and a convex elastic annular rib (6) is arranged at the joint of the annular groove body (5) and the outer circumferential wall of the pulley (2).

2. The electric cylinder driven motor caravan tail door opening and closing mechanism according to claim 1, characterized in that: the distance from the inner ring of the inner metal ring (3) to the inner ring of the pulley (2), the distance from the two sides of the inner metal ring (3) to the two sides of the pulley (2), and the distance from the outer ring of the inner metal ring (3) to the bottom arc-shaped section (52) are equal.

3. The electric cylinder driven motor caravan tail door opening and closing mechanism according to claim 1, characterized in that: the vertical height of the upper straight section (51) is greater than the vertical distance from the top of the upper arc-shaped section (53) to the bottom of the bottom arc-shaped section (52).

4. The electric cylinder driven motor caravan tail door opening and closing mechanism according to claim 1, characterized in that: the elastic annular flange (6) and the pulley (2) are integrally formed by injection molding.

5. The electric cylinder driven motor caravan tail door opening and closing mechanism according to claim 1, characterized in that: the elastic annular flanges (6) are arranged outwards along the center line direction of an included angle between the upper straight section (51) and the outer circumferential wall of the pulley (2).