阅读说明：本技术 真空腔体门安全防护装置 (Vacuum cavity door safety device ) 是由 吴建东 于 2019-09-06 设计创作，主要内容包括：本发明涉及一种真空腔体门安全防护装置,安装于真空腔体门的把手一侧底角端,包括固定在真空腔体门门体上的主气缸,主气缸活塞杆连接有支撑轮,所述支撑轮在真空腔体门开闭过程中由主气缸推动向上支撑真空腔体门,支撑轮上开设有轴向插销孔,支撑轮侧面设有在真空腔体门开闭到位后插入轴向插销孔内锁死支撑轮的滚珠插销。本发明在真空腔体门开关门到位后,采用主气缸推动支撑轮支撑住真空腔体门,从而有效地防止了由于重力作用而导致真空腔体门向一侧倾覆而发生严重安全危险。同时也防止了真空腔体在维护过程中,由于开门造成真空腔体门重心前移产生腔体倾覆或翻转而造成安全事故的发生。(The invention relates to a safety protection device for a vacuum cavity door, which is arranged at the bottom corner end of one side of a handle of the vacuum cavity door and comprises a main cylinder fixed on the door body of the vacuum cavity door, wherein a piston rod of the main cylinder is connected with a supporting wheel, the supporting wheel is pushed by the main cylinder to upwards support the vacuum cavity door in the opening and closing process of the vacuum cavity door, an axial bolt hole is formed in the supporting wheel, and a ball bolt inserted into the axial bolt hole to lock the supporting wheel after the vacuum cavity door is opened and closed in place is arranged on the side surface of the supporting wheel. After the vacuum cavity door is opened and closed in place, the main cylinder is adopted to push the supporting wheel to support the vacuum cavity door, so that the serious safety hazard caused by the fact that the vacuum cavity door topples to one side under the action of gravity is effectively prevented. Meanwhile, the occurrence of safety accidents caused by the fact that the gravity center of a door of the vacuum cavity moves forwards to generate cavity overturning or overturning in the maintenance process of the vacuum cavity is also prevented.)

1. The utility model provides a vacuum chamber door safety device, installs in handle (2) one side base angle end of vacuum chamber door (1), characterized by: the vacuum cavity door locking device comprises a main cylinder (3) fixed on a vacuum cavity door body (1), wherein a piston rod of the main cylinder (3) is connected with a supporting wheel (4), the supporting wheel (4) is pushed by the main cylinder (3) to upwards support the vacuum cavity door (1) in the opening and closing process of the vacuum cavity door (1), an axial bolt hole (5) is formed in the supporting wheel (4), and a ball bolt (6) which is inserted into the axial bolt hole (5) to lock the supporting wheel (4) after the vacuum cavity door (1) is opened and closed in place is arranged on the side face of the supporting wheel (4).

2. The vacuum chamber door safety shield of claim 1, further comprising: a wheel carrier (7) with a downward door-shaped opening is fixed on a door body of the vacuum cavity door (1), a supporting wheel (4) is positioned between two side plates of the wheel carrier (7), and a ball bolt (6) penetrates through a through hole in a side plate of the wheel carrier (7) and is inserted into an axial bolt hole (5) in the supporting wheel (4).

3. The vacuum chamber door safety shield as recited in claim 2, further comprising: the ball bolt (6) is pushed by a single-acting cylinder (8) arranged on the outer side surface of the wheel carrier (7) to be inserted into or separated from the axial bolt hole (5).

4. The vacuum chamber door safety shield as recited in claim 2, further comprising: the vacuum chamber door is characterized in that a base (9) provided with a main cylinder (3) is fixed on a door body of the vacuum chamber door (1), a supporting seat (10) which is connected with the main cylinder (3) and reversely supported on the ground when the vacuum chamber door (1) is supported by a supporting wheel (4) is arranged below the base (9), a lifting frame (11) is arranged on the upper end face of the base (9) in a sliding manner, the supporting wheel (4) is fixed on the upper end face of the lifting frame (11), and a piston rod of the main cylinder (3) pushes the lifting frame (11) to move up and down to support or separate the supporting wheel (4) from a wheel carrier (.

5. The vacuum chamber door safety shield of claim 1, further comprising: the air inlet and outlet reversing device is characterized by further comprising an air inlet pipe (12) and an air outlet pipe (13), a linkage mechanism (14) for reversing air inlet and outlet is arranged between the air inlet pipe (12) and the air outlet pipe (13), and an air inlet and outlet port of the main cylinder (3) is connected with the linkage mechanism (14) through a pipeline.

Technical Field

The invention relates to a safety protection device for a vacuum cavity door.

Background

The vacuum cavity door has the structural characteristics that the weight of the door body is large, so that the door body is inconvenient to open and close due to too heavy self weight when the door is opened and closed; in addition, after the door is opened, due to the action of gravity, the door body is connected with the vacuum cavity only through the rotating shaft, so that deformation is easily caused, when maintenance is carried out in the vacuum cavity, after parts in the cavity are taken out, the weight of the cavity is reduced, the weight of the door is still unchanged, and the door is prone to topple to one side when the door is opened, so that serious safety danger is caused.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects in the prior art, the invention provides a safety protection device for a vacuum cavity door, so as to improve the use safety of the vacuum cavity door.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a vacuum chamber door safety device, installs in vacuum chamber door's handle one side base angle end, is including fixing the master cylinder on vacuum chamber door body, and the master cylinder piston rod is connected with the supporting wheel, the supporting wheel upwards supports vacuum chamber door by the master cylinder promotion in vacuum chamber door switching process, has seted up axial bolt hole on the supporting wheel, and the supporting wheel side is equipped with inserts the ball bolt of the downthehole lock of dead supporting wheel of axial bolt after vacuum chamber door switching targets in place.

Furthermore, a wheel carrier with a downward door-shaped opening is fixed on the door body of the vacuum cavity door, the supporting wheel is positioned between two side plates of the wheel carrier, and the ball bolt penetrates through a through hole on the side plate of the wheel carrier and is inserted into an axial bolt hole on the supporting wheel.

In order to realize the rapid movement of the ball bolt, the ball bolt is pushed by a single-acting cylinder arranged on the outer side surface of the wheel frame to be inserted into or separated from the axial bolt hole.

Specifically speaking, in order to realize the stable support of the vacuum cavity door, a base for installing a main cylinder is fixed on a door body of the vacuum cavity door, a supporting seat which is connected with the main cylinder and reversely supported on the ground when the supporting wheel supports the vacuum cavity door is arranged below the base, a lifting frame is arranged on the upper end face of the base in a sliding mode, the supporting wheel is fixed on the upper end face of the lifting frame, and a piston rod of the main cylinder pushes the lifting frame to move up and down to realize that the supporting wheel supports or breaks away from a wheel carrier.

In order to realize the telescopic motion of the piston rod of the main cylinder, the protective device further comprises an air inlet pipe and an air outlet pipe, a linkage mechanism for realizing the reversing of air inlet and outlet is arranged between the air inlet pipe and the air outlet pipe, and the air inlet and outlet ports of the main cylinder are connected with the linkage mechanism through pipelines.

The invention has the beneficial effects that: after the vacuum cavity door is opened and closed in place, the main cylinder is adopted to push the supporting wheel to support the vacuum cavity door, so that the serious safety hazard caused by the fact that the vacuum cavity door topples to one side under the action of gravity is effectively prevented. Meanwhile, the occurrence of safety accidents caused by the fact that the gravity center of a door of the vacuum cavity moves forwards to generate cavity overturning or overturning in the maintenance process of the vacuum cavity is also prevented.

Drawings

The invention is further described with reference to the following figures and embodiments.

Fig. 1 is a schematic structural view of the present invention.

FIG. 2 is a schematic view of the installation of the protective device on the vacuum chamber door.

In the figure: 1. the vacuum chamber comprises a vacuum chamber door, 2 parts of a handle, 3 parts of a main cylinder, 4 parts of a supporting wheel, 5 parts of an axial bolt hole, 6 parts of a ball bolt, 7 parts of a wheel carrier, 8 parts of a single-acting cylinder, 9 parts of a base, 10 parts of a supporting seat, 11 parts of a lifting frame, 12 parts of an air inlet pipe, 13 parts of an air outlet pipe, 14 parts of a linkage mechanism, 15 parts of a rotating shaft and 16 parts of a protective device.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1, one side of the vacuum chamber door 1 is hinged to the vacuum chamber through a rotating shaft 15, and the other side of the vacuum chamber door 1 is provided with a handle 2.

The protection device 16 is arranged at the bottom corner end of one side of the handle 2 of the vacuum cavity door 1 and comprises a base 9 fixed on the door body of the vacuum cavity door 1, a main cylinder 3 is arranged on the base 9, the upper end face of the base 9 is provided with a lifting frame 11 in a sliding mode, the upper end face of the lifting frame 11 is fixed with a supporting wheel 4, a piston rod of the main cylinder 3 is connected with the lifting frame 11 to push the supporting wheel 4 to lift, a supporting seat 10 connected with the main cylinder 3 is arranged below the base 9, and the supporting wheel 4 reversely supports the vacuum cavity door 1 on the ground.

The vacuum cavity door 1 is characterized in that a door body of the vacuum cavity door 1 is fixedly provided with a wheel frame 7 with a downward door-shaped opening, the supporting wheel 4 is positioned between two side plates of the wheel frame 7, the supporting wheel 4 is provided with an axial bolt hole 5, the side surface of the supporting wheel 4 is provided with a ball bolt 6, the ball bolt 6 is pushed by a single-action cylinder 8 arranged on the outer side surface of the wheel frame 7, penetrates through a through hole on the side plate of the wheel frame 7 and is inserted into or separated from the axial bolt hole 5, and therefore locking or unlocking of the supporting wheel 4 is achieved.

The inner side of the handle 2 is provided with a trigger switch which is triggered by the grip of the operator to control the action of the single-acting cylinder 8.

The protection device 16 further comprises an air inlet pipe 12 and an air outlet pipe 13, a linkage mechanism 14 for realizing air inlet and outlet reversing of the main cylinder 3 is arranged between the air inlet pipe 12 and the air outlet pipe 13, and an air inlet and outlet port of the main cylinder 3 is connected with the linkage mechanism 14 through a pipeline.

The piston rod of the main cylinder 3 pushes the lifting frame 11 to do lifting motion so as to realize that the supporting wheel 4 supports or is separated from the wheel frame 7.

When the vacuum chamber door is used, the weight of the vacuum chamber door 1 is calculated, the air inlet pressure corresponding to the main cylinder 3 is set, and the supporting force of the main cylinder 3 is equal to the unilateral weight of the vacuum chamber door 1.

When the door is opened and closed, the main cylinder 3 pushes the supporting wheel 4 to rise to support the vacuum cavity door 1 against the wheel frame 7, and under the action of a reaction force, the main cylinder 3 pushes the supporting seat 10 to reversely support the vacuum cavity door 1 on the ground, so that the vacuum cavity door 1 is supported after the door is opened and closed in place, and serious safety hazard caused by the fact that the vacuum cavity door 1 topples to one side is prevented. Meanwhile, the vacuum chamber is prevented from overturning or overturning due to forward movement of the gravity center caused by opening a door in the maintenance process, and the purpose of preventing accidental safety in the maintenance process is achieved.

Unlocking or locking of the support wheels 4: when the door is opened, an operator holds the handle 2 tightly, so that the trigger switch on the handle 2 is triggered by the holding power of the hand, the single-action cylinder 8 is controlled to act, the ball bolt 6 inserted into the axial bolt hole 5 of the supporting wheel 4 is pulled out, and the vacuum cavity door 1 rotates around the rotating shaft 15 under the thrust action of the operator. After the door is opened in place, the handle 2 is loosened, the trigger switch returns to the original state, the single-action cylinder 8 pushes the ball bolt 6 to be inserted into the axial bolt hole 5, the supporting wheel 4 is locked again, and the vacuum cavity door 1 is prevented from being randomly rotated to cause damage.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.