CN209870209U - Single oil cylinder opening and closing device for carriage door - Google Patents

Abstract

The utility model discloses a carriage door single oil cylinder opening and closing device, include the outer open type tilt-up door that articulates with the carriage backplate, the left and right sides of tilt-up door sets firmly the sliding sleeve respectively, the sliding sleeve fit in sets up and takes out the inserted bar, set up the hasp on the rear end face of the carriage side shield that corresponds the position with the sliding sleeve, take out the outer end of inserted bar and can get into or leave the hasp, set firmly two faggings at the middle part of the left and right sides direction of tilt-up door, set up the slotted hole of upper and lower direction on the fagging, wear to establish the slide bar in the slotted hole, articulate the inner of connecting rod respectively after the both ends of slide bar stretch out the slotted hole, the outer end; the cylinder body of a double-acting oil cylinder is hinged at the middle part of the carriage rear baffle in the left and right direction, and the cylinder rod of the double-acting oil cylinder is connected with a slide rod positioned between two supporting plates in a switching way; the double-acting oil cylinder and two groups of aggregates which are composed of connecting rods, universal joints, inserting and withdrawing rods and sliding sleeves are arranged in a herringbone mode. The utility model discloses solve the synchronous problem of hydro-cylinder from the source, also be favorable to practicing thrift the cost.

Description

Single oil cylinder opening and closing device for carriage door

Technical Field

The utility model relates to the technical field of automobiles, specifically, relate to a carriage door single cylinder headstock gear.

Background

The applicant discloses a hydraulic locking and unlocking device for a carriage back door under the publication No. CN203739716U, which comprises an inverted L-shaped supporting plate fixedly connected with the side wall of the carriage back door and hinged with the top of a side plate of the carriage through a first pin shaft, at least 1 locking post fixed on the lower part of the side wall of the carriage back door, and at least 1 locking hook hinged on the lower part of the side plate of the carriage corresponding to the position of the locking post. By adopting the simple and effective technical scheme, a driver can control the hydraulic operating lever in the cab to realize the opening and closing of the rear door, and the driver does not need to get off to operate the automobile, so that the automobile is safe and convenient.

Although the structure can realize the automatic opening of the rear door when the carriage is lifted, double oil cylinders are needed, and the two oil cylinders must be synchronous. When the two cylinders are not synchronized for various reasons, the rear door is distorted.

Disclosure of Invention

The utility model aims at providing a carriage door single cylinder headstock gear based on prior art, avoid taking place above-mentioned problem.

The single-oil-cylinder opening and closing device for the carriage door comprises an outward-opening type upturned door hinged with a carriage rear baffle, wherein sliding sleeves are fixedly arranged on the left side and the right side of the upturned door respectively, inserting and pulling rods are arranged in the sliding sleeves in a matched mode, a lock catch is arranged on the rear end face of a carriage side baffle at a position corresponding to the sliding sleeves, the outer end of each inserting and pulling rod can enter or leave the lock catch, the single-oil-cylinder opening and closing device is different from the prior art in that two supporting plates are fixedly arranged in the middle of the upturned door in the left and right direction, long holes in the upper direction and the lower direction are formed in the supporting plates, sliding rods penetrate through the long holes, two ends of each sliding rod extend out of the long holes and are hinged with the; the cylinder body of a double-acting oil cylinder is hinged to the middle part of the carriage rear baffle in the left-right direction, and the cylinder rod of the double-acting oil cylinder is connected with the sliding rod positioned between the two supporting plates in a switching way; the double-acting oil cylinder and two groups of aggregates which are composed of connecting rods, universal joints, inserting and pulling rods and sliding sleeves are arranged in a herringbone mode.

Preferably, the inner included angle between the axial direction of the inserting rod and the sliding sleeve and the horizontal line is 45 degrees.

Furthermore, a stud with a fine-adjustable connecting position is connected to the rear end face of the carriage side baffle, and the lock catch is in threaded connection with the stud through a screw hole formed in the bottom end of the lock catch and is fixed through a back nut 13. Therefore, the position of the lock catch on the three-dimensional position can be adjusted, and the lock catch is better matched with the plugging rod.

The utility model adopts a simple and effective technical scheme, a driver can control the hydraulic control rod in the cab to realize the opening and closing of the upturning door without getting off the vehicle for manual operation, and the device is safe and convenient; meanwhile, the method can be realized by only one double-acting oil cylinder, the problem of oil cylinder synchronization is solved from the source, and the cost is saved.

Drawings

Fig. 1 is a schematic structural view of the upturned door of the present invention in an open state.

Fig. 2 is a partially enlarged view of fig. 1 at the middle dashed box.

Fig. 3 is a partially enlarged view of the right-hand broken line of fig. 1.

Fig. 4 is a schematic view of the structure of fig. 1 from another view angle.

Fig. 5 is a partially enlarged view of fig. 4 at a dotted frame.

Detailed Description

The single-oil-cylinder opening and closing device for the car compartment door shown in fig. 1-5 comprises an outward-opening type upward-turning door 2 hinged with a compartment rear baffle 1, wherein sliding sleeves 3 are fixedly arranged on the left side and the right side of the upward-turning door 2 respectively, inserting and pulling rods 4 are arranged in the sliding sleeves 3 in a matched mode, a lock catch 6 is arranged on the rear end face of a compartment side baffle 5 at a position corresponding to the sliding sleeves 3, and the outer ends of the inserting and pulling rods 4 can enter or leave the lock catch 6; the cylinder body of a double-acting oil cylinder 11 is hinged to the middle part of the carriage backplate 1 in the left-right direction, and the cylinder rod of the double-acting oil cylinder 11 is connected with the slide rod 8 positioned between the two supporting plates 7 in a switching way; the double-acting oil cylinder 11 and two groups of aggregates consisting of the connecting rod 9, the inserting and pulling rod 4 and the sliding sleeve 3 are arranged in a herringbone mode. The inner included angle between the axial direction of the inserting rod 4 and the sliding sleeve 3 and the horizontal line is 45 degrees. The rear end face of the carriage side baffle 5 is connected with a stud 12 with a fine-adjustable position, and the lock catch 6 is in threaded connection with the stud 12 through a screw hole formed in the bottom end of the lock catch and is fixed through a back nut 10.

Assuming that the state of the upturned door 2 is the fully-opened state shown in fig. 1, when the upturned door needs to be closed, when a driver controls a hydraulic control lever of the upturned door in a cab to enable a cylinder rod of the double-acting oil cylinder 11 to gradually extend outwards, the sliding rod 8 is not abutted against the upper end of the long circular hole 71, the upturned door loses pulling force and turns downwards under the action of gravity until the upturned door is closed; after the sliding sleeve is completely closed, as the cylinder rod of the double-acting oil cylinder 11 continues to generate thrust, the sliding rod 8 is driven to move downwards towards the lower end of the long circular hole 71, the connecting rod 9 and the plugging rod 4 are driven to reduce the inclination, and the outer end of the plugging rod 4 extends out of the sliding sleeve 3 and then is buckled with the lock catch 6. The upturned door is completely locked, and the condition of untight closing or accidental opening can not occur.

When the double-acting oil cylinder needs to be opened again, a driver controls a hydraulic control lever of the upturned door in the cab to enable a cylinder rod of the double-acting oil cylinder 11 to retract gradually and drive the sliding rod 8 to move upwards towards the upper end of the long circular hole 71, firstly, the connecting rod 9 and the inserting rod 4 are driven to increase in inclination, the outer end of the inserting rod 4 is separated from the lock catch 6, when the cylinder rod of the double-acting oil cylinder 11 continues to retract, the sliding rod 8 is abutted against the upper end of the long circular hole 71, and therefore the upturned door is pulled to be upturned until the.

Claims (3)

1. A single oil cylinder opening and closing device for a carriage door comprises an outward opening type upturning door (2) hinged with a carriage rear baffle (1), sliding sleeves (3) are fixedly arranged on the left side and the right side of the upturned door (2) respectively, a plugging rod (4) is arranged in the sliding sleeves (3) in a matching way, a lock catch (6) is arranged on the rear end surface of the carriage side baffle (5) corresponding to the sliding sleeve (3), the outer end of the inserting rod (4) can enter or leave the lock catch (6), it is characterized in that two supporting plates (7) are fixedly arranged at the middle part of the left and right direction of the upturned door (2), the supporting plate (7) is provided with a long round hole (71) in the vertical direction, a sliding rod (8) penetrates through the long round hole (71), the two ends of the sliding rod (8) extend out of the long round holes (71) and are respectively hinged with the inner ends of the connecting rods (9), the outer end of the connecting rod (9) is hinged with the inner end of the inserting and pulling rod (4); the cylinder body of a double-acting oil cylinder (11) is hinged to the middle part of the carriage backboard (1) in the left-right direction, and the cylinder rod of the double-acting oil cylinder (11) is connected with the sliding rod (8) positioned between the two supporting plates (7) in a switching way; the double-acting oil cylinder (11) and two groups of aggregates which are composed of connecting rods (9), inserting and pulling rods (4) and sliding sleeves (3) are arranged in a herringbone mode.

2. The opening and closing device for the single oil cylinder of the carriage door is characterized in that an inner included angle between the axial direction of the inserting and pulling rod (4) and the sliding sleeve (3) and the horizontal line is 45 degrees.

3. The opening and closing device for the single oil cylinder of the carriage door is characterized in that a stud (12) with a fine-adjustable position is connected to the rear end face of the carriage side baffle (5), and the lock catch (6) is in threaded connection with the stud (12) through a screw hole formed in the bottom end of the lock catch and is fixed through a back nut (10).