CN105173488A - Carriage rear door device for sealed locked garbage truck - Google Patents

Abstract

<b>The invention discloses a device for sealing and locking the rear door of a garbage truck compartment, which includes a frame for the rear door of the compartment, a rear door for the compartment arranged on the frame of the rear door of the compartment, and two The rear door locking mechanism on the side is characterized in that two symmetrically arranged oblique waist-shaped hole seats are arranged on the upper parts of both sides of the rear door frame of the car body, and double-outlet rod-type positioning oil cylinders are arranged on the top of the rear door frame of the car body. A wedge-shaped block is provided at both ends of the rod-type positioning cylinder, and the wedge-shaped block is parallel to the oblique-shaped waist-shaped hole located below the oblique-shaped waist-shaped hole seat. One end of the ear reciprocates up and down along the oblique waist-shaped hole through the pin shaft, and the other end of the rotating ear is fixedly connected to the top of the corresponding side of the rear door of the box body; The oblique waist-shaped hole on the rear door frame cooperates to ensure that the rear door of the car body will not move down when it is opened, and to improve the success rate of opening and closing the door. </b>

Description

A device for sealing and locking the rear door of a garbage truck compartment

technical field

The invention belongs to the technical field of garbage truck manufacturing, and in particular relates to a rear door device for sealing and locking a garbage truck compartment, which can be used for various garbage truck rear door devices.

Background technique

The garbage truck is used to collect, load and transport domestic garbage, and can compress and crush the loaded garbage to increase its density and reduce its volume, which greatly improves the efficiency of garbage collection and transportation. During transportation, the rear door should be kept closed to prevent garbage from leaking. After the vehicle arrives at the garbage disposal site, the rear door should be opened to unload the garbage. Therefore, the rear door should not only be able to open to a sufficient angle, but also ensure the airtightness when closed.

The back door design of the garbage truck compartment in the prior art usually includes two kinds of manual mode and automatic mode:

The first manual method: the relatively mature manual rear door locking mechanism is a ratchet mechanism, which is widely used in the rear door locking of the pull arm hook. Turn the ratchet mechanism, the positive and negative threaded rods will extend the connection rod between the lock hook and the carriage, so that the lock hook rotates clockwise, the rear door slides down according to the guide bar hole, the lock hook and the lock shaft are released, and the carriage is tipped over. The rear door will be opened automatically. This method can completely seal the sewage in the compartment. The sealing effect is good, but the operation is troublesome. Another manual method is the latch type, which is inconvenient to operate and poor in water tightness, and has been gradually eliminated by the market.

The second automatic method: the automatic rear door locking mechanism has different appearances due to different models, but its principle is roughly the same. For example, when installing a compressed garbage truck in the future, extend the door opening cylinder and slide the rear door (stuffer) upwards according to the guide bar hole to disengage the lock hook from the lock shaft. The door opening cylinder continues to extend, and the rear door will open accordingly. In this way, the compression force of the sealing strip between the compartment and the rear door is realized by the round surface or inclined surface of the lock hook itself, so the compression feed is limited, and the sewage cannot be sealed in the compartment. ) The lower end is equipped with a water tank to avoid the problem of sewage overflow during transportation. However, there are still hidden dangers of secondary pollution when the road surface is bumpy. At the same time, most of the automatic methods adopt the door-opening oil cylinder, guide hole, lock hook, etc., and most of the locking devices are improvements to the lock hook, which does not solve the problem of the back door sliding.

Contents of the invention

The object of the present invention is to provide a feasible and reliable rear door structure, a device for sealing and locking the rear door of a garbage truck compartment with a high success rate of opening and closing the door and effectively preventing the rear door of the compartment from sliding down.

The technical solution of the present invention is: a device for sealing and locking the rear door of the garbage truck compartment, comprising a rear door frame of the compartment, a rear door of the compartment arranged on the rear door frame of the compartment, and two rear doors respectively arranged on the frame of the rear door of the compartment and For the rear door locking mechanism on both sides of the rear door of the car body, two symmetrical oblique waist-shaped hole seats are respectively arranged on the upper parts of the two sides of the rear door frame of the car body, and double outlet rods are arranged on the top of the rear door frame of the car body. Type positioning oil cylinder, the two ends of the double-outlet type positioning oil cylinder are respectively provided with a wedge-shaped block, and the wedge-shaped block is parallel to the oblique waist-shaped hole located below on the oblique waist-shaped hole seat. A swivel ear is provided between the waist-shaped hole seats, one end of the swivel ear reciprocates up and down along the oblique waist-shaped hole through a pin, and the other end of the swivel ear is fixedly connected to the top of the corresponding side of the rear door of the box body.

As a preferred technical solution, the rear door locking mechanism includes locking cylinders arranged on both sides of the rear door frame of the car body and the rear door of the car body. The middle part is hinged, and the upper end of the extension rod of the locking oil cylinder is hinged with the upper part of the corresponding side of the rear door of the car body.

As a preferred technical solution, the rear door locking mechanism further includes a lock pin arranged at the lower part of the rear door frame of the car body, and a lock hook arranged on the rear door of the car body and cooperating with the lock pin.

As a preferred technical solution, the extension direction of the locking cylinder, the inclination direction of the oblique waist-shaped hole, and the oblique direction of the hook angle of the lock hook form a three-parallel line structure to ensure that the rear door of the car body is normally locked when it is closed.

As a preferred technical solution, a sealing rubber strip is provided on the periphery of the rear door of the box body to ensure a firm seal after the rear door of the box body is closed.

As a preferred technical solution, an anti-off block is respectively fixed at both ends of the pin shaft and outside the two oblique waist-shaped sockets.

The advantages of the present invention are:

1. The present invention adopts a double-outlet rod type positioning oil cylinder, and the wedge-shaped blocks at both ends cooperate with the oblique waist-shaped hole on the frame of the rear door of the car body, so as to ensure that the rear door of the car body will not move down when it is opened, and improve the success rate of opening and closing the door;

2. The present invention adopts a three-parallel line structure, that is, the extension direction of the locking oil cylinder, the inclination direction of the oblique waist-shaped hole, and the oblique direction of the hook angle of the lock hook are parallel to ensure that the rear door of the car body is normally locked when it is closed, and the locking of the rear door is improved. The reliability of the mechanism and the accuracy of the cooperation between the lock shaft and the lock hook;

3. The locking oil cylinder and the double-rod type positioning oil cylinder of the present invention are both arranged outside the box body of the carriage, which is convenient for maintenance.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment:

Fig. 1 is the three-dimensional view of the closed state structure of the rear door of the car body of the present invention;

Fig. 2 is a side view of the closed state structure of the rear door of the car body of the present invention;

Fig. 3 is a state diagram of the rear door of the car body of the present invention opened to the limit position;

Fig. 4 is a state diagram of the opening process of the rear door of the car body of the present invention;

Figure 5 is a partially enlarged view of the waist hole and the wedge-shaped block of the present invention;

Among them: 1 box body rear door frame, 2 box body rear door, 3 oblique waist-shaped hole seat, 4 double rod type positioning cylinder, 5 wedge-shaped block, 6 oblique waist-shaped hole, 7 rotating lug, 8 pin shaft, 9 seal Rubber strips, 10 anti-off blocks, 11 locking oil cylinders, 12 locking pins, and 13 locking hooks.

Detailed ways

Embodiment: Referring to Figures 1 to 5, a device for sealing and locking the rear door of a garbage truck compartment includes a rear door frame 1, a rear door 2 mounted on the rear door frame 1, and two rear doors respectively located on the rear door frame 1. The rear door locking mechanism on both sides of the rear door frame 1 and the rear door 2 of the car body is respectively provided with two symmetrically arranged oblique waist-shaped hole seats 3 on both sides of the rear door frame 1 of the car body. Rod-out type positioning oil cylinder 4, two ends of the double-out type positioning oil cylinder 4 are respectively provided with a wedge-shaped block 5, and the wedge-shaped block 5 is parallel to the inclined-shaped waist-shaped hole 6 located below on the oblique-shaped waist-shaped hole seat 6. A swivel ear 7 is arranged between the oblique waist-shaped hole seats 3, one end of the swivel ear 7 moves up and down along the oblique waist-shaped hole 6 through the pin shaft 8, and the other end of the swivel ear 7 is fixedly connected to the top of the corresponding side of the rear door 2 of the car body , the car body rear door 2 periphery is provided with sealing rubber strip 9, simultaneously at pin shaft 8 two ends, and is positioned at two oblique waist-shaped hole seat 3 outsides and is respectively fixed with an anti-off block 10.

The rear door locking mechanism of the present invention comprises locking oil cylinders 11 arranged on both sides of the rear door frame 1 of the car body and the rear door 2 of the car body, the lock pin 12 arranged at the bottom of the rear door frame 1 of the car body, and the rear door 2 of the car body, And the locking hook 13 that cooperates with lock pin 12 to be provided with, the lower end of locking oil cylinder 11 is hinged with the corresponding side middle part of car body rear door frame 1, and the extension rod upper end of locking oil cylinder 11 is hinged with the corresponding side upper part of car body rear door 2.

Referring to Fig. 2, the extension direction a of the locking cylinder 11 of the present invention, the inclination direction b of the oblique waist-shaped hole 6, and the oblique direction c of the hook angle of the locking hook 13 form a three-parallel line structure.

The opening and closing process of the compartment back door of the present invention is as follows:

(1) The opening process of the rear door of the carriage: firstly, the locking cylinder 11 is extended, and the rotating ear 7 is pushed to the oblique waist-shaped hole 6 above, the rear door 2 of the carriage body rises with the rotating ear 7, and the two ends of the cylinder 4 are positioned with double rods Elongate, and push the wedge-shaped blocks 5 at both ends into the oblique waist-shaped hole 6 below. As the locking cylinder 11 continues to elongate, the rear door 2 of the car body and the swivel ear 7 will wrap around the upper oblique waist-shaped hole 6. Rotate it counterclockwise until it reaches the horizontal position.

(2) Closing process of the rear door of the carriage: When the rear door 2 of the carriage is opened, the locking cylinder 11 is retracted, and the rear door 2 of the carriage wraps around the top of the oblique waist-shaped hole 6 (because the wedge-shaped block 5 prevents the rear door 2 of the carriage from falling ) rotates downwards clockwise, the rear door 2 of the car body is gradually closed, and when the rear door 2 of the car body is attached to the frame 1 of the rear door of the car body, the two ends of the double-rod type positioning cylinder 4 are retracted, and the wedge-shaped block 5 is withdrawn from the lower oblique The waist-shaped hole 6 and the locking cylinder 11 continue to retract, and the back door 2 of the car body continues to slide along the oblique line in the center of the oblique waist-shaped hole 6 under the double action of gravity and the locking oil cylinder 11, and the seal on the back door 2 of the car body The rubber strip 9 is compressed to further play a sealing role. At the same time, the lock hook 13 and the lock pin 12 cooperate to lock the car body rear door 2 and the car body rear door frame 1. The actual trial shows that the success rate of closing the car body rear door 2 is 100%. % with excellent reliability.

The above-mentioned embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention should still be covered by the claims of the present invention.

Claims (6)

1. A device for sealing and locking the back door of a garbage truck compartment, comprising a back door frame of a car body, a back door of the car body arranged on the back door frame of the car body, and two rear door frames respectively arranged on the back door of the car body and the back door of the car body The rear door locking mechanism on both sides is characterized in that two symmetrical oblique waist-shaped hole seats are respectively arranged on the upper parts of the two sides of the rear door frame of the car body, and double-outlet rods are arranged on the top of the rear door frame of the car body. Positioning oil cylinder, a wedge-shaped block is provided at both ends of the double-outlet type positioning oil cylinder, and the wedge-shaped block is parallel to the oblique waist-shaped hole located below on the oblique waist-shaped hole seat, and at the same time, the two oblique waists A rotating ear is arranged between the shaped hole seats, and one end of the rotating ear reciprocates up and down along the oblique waist-shaped hole through a pin shaft, and the other end of the rotating ear is fixedly connected to the top of the corresponding side of the rear door of the car body. 2. The device for sealing and locking the rear door of the garbage truck compartment according to claim 1, wherein the rear door locking mechanism includes locking cylinders arranged on both sides of the rear door frame of the compartment and the rear door of the compartment, The lower end of the locking oil cylinder is hinged to the middle part of the corresponding side of the frame of the rear door of the car body, and the upper end of the extension rod of the locking oil cylinder is hinged to the upper part of the corresponding side of the rear door of the car body. 3. The device for sealing and locking the rear door of a garbage truck compartment according to claim 2, wherein the rear door locking mechanism further comprises a lock pin arranged at the lower part of the frame of the rear door of the compartment, and a lock pin disposed at the lower part of the compartment rear door frame. The lock hook on the rear door and cooperating with the lock pin. 4. The device for sealing and locking the rear door of the garbage truck compartment according to claim 3, characterized in that, the extension direction of the locking cylinder, the inclination direction of the oblique waist-shaped hole and the oblique line direction of the hook angle of the locking hook constitute Three parallel lines structure. 5. The device for sealing and locking the rear door of the garbage truck compartment according to claim 1, wherein a sealing rubber strip is provided on the periphery of the rear door of the compartment. 6 . The device for sealing and locking the rear door of the garbage truck compartment according to claim 1 , wherein an anti-loosening block is respectively fixed at both ends of the pin shaft and outside the two oblique waist-shaped hole seats. 7 .