阅读说明：本技术 一种安全印章的活门 (Valve of safety seal ) 是由 艾诚 于 2021-09-15 设计创作，主要内容包括：本发明公开了一种安全印章的活门,活门包括履带式连接的门板、电机,还包括链条和导向链轮；门板的两端延伸出链销,链销插入链条的转动轴或直接构成链条的转动轴；所述的链条的外侧还设有导轨,导轨分为横向段和竖向段,横向段与竖向段之间圆弧过渡连接,链条的转动轴延伸出导引柱,导引柱嵌入导轨中,导向链轮的链齿插入链条中,导向链轮转动带动链条和门板沿导轨运动,电机驱动导向链轮转动,使得活门的两侧在开启或关闭的过程中始终受到导轨约束,避免活门在开、闭过程中的卡滞现象。(The invention discloses a valve of a safety seal, which comprises a door plate, a motor, a chain and a guide chain wheel, wherein the door plate and the motor are connected in a crawler-type manner; chain pins extend out of two ends of the door panel and are inserted into the rotating shafts of the chains or directly form the rotating shafts of the chains; the outside of chain still be equipped with the guide rail, the guide rail divide into horizontal section and vertical section, circular arc transitional coupling between horizontal section and the vertical section, the guide post is extended to the axis of rotation of chain, in the guide post embedding guide rail, during the sprocket of leading sprocket inserts the chain, leading sprocket rotates and drives chain and door plant along the guide rail motion, motor drive leading sprocket rotates for the both sides of valve receive the guide rail restraint all the time at the in-process of opening or closing, avoid the valve opening, close the jamming phenomenon of in-process.)

1. A valve of a safety seal comprises a door plate and a motor which are connected in a crawler-type manner, and is characterized by also comprising a chain and a guide chain wheel; chain pins extend out of two ends of the door panel and are inserted into the rotating shafts of the chains or directly form the rotating shafts of the chains; the outer side of the chain is also provided with a guide rail, the guide rail is formed by a guide rail groove arranged on the guide rail plate or a guide rail seam penetrating through the guide rail plate, the guide rail is divided into a transverse section and a vertical section, the transverse section corresponds to the closing position of the valve, the vertical section corresponds to the opening position of the valve, the transverse section and the vertical section are in arc transition connection, the radius of an arc is matched with the length of the chain, a guide post extends out of a rotating shaft of the chain, the guide post is embedded into the guide rail, chain teeth of a guide chain wheel are inserted into the chain, and the guide chain wheel rotates to drive the chain and the door panel to move along the guide rail; the motor shaft is provided with a driving gear or a driving chain wheel or a driving belt wheel, the guide chain wheel is also provided with a corresponding transmission gear or a transmission chain wheel or a transmission belt wheel, the motor is meshed with the transmission gear through the driving gear, or the driving chain wheel is connected with the transmission chain wheel through a transmission chain, or the driving belt wheel is connected with the transmission belt wheel through a transmission belt, and the guide chain wheel is driven to rotate.

2. A shutter of a security stamp according to claim 1, characterised in that the axis of rotation of said guide sprocket coincides with the centre of said arc.

3. A shutter of a security stamp according to claim 2, characterized in that the number of the guide sprockets is two, and the guide sprockets are respectively provided with a transmission gear or a transmission sprocket or a transmission pulley corresponding to the chains at the two ends of the door panel.

4. A shutter of a security stamp according to claim 3, characterized in that the motor shaft is led out from one end of the motor or from both ends of the motor; when the motor rotating shaft is led out from one end of the motor, a connecting shaft is arranged between two corresponding driving gears or between two corresponding driving chain wheels or between two corresponding driving belt wheels; when the motor rotating shaft is led out from the two ends of the motor, the two ends are provided with a driving gear or a driving chain wheel or a driving belt wheel.

Technical Field

The invention relates to a safety seal, in particular to a valve of the safety seal.

Background

The existing safety seal generally comprises a shell, a valve, a seal body, a control circuit and a mechanism for driving the seal body and the valve to carry out the sealing operation; the seal body is arranged in the shell, the valve seals the seal body in the shell, the control circuit receives an external authorization instruction and an external operation instruction, generates a corresponding operation program, and drives the valve to open and the seal body to move out of the shell for sealing operation; the valve of the existing seal comprises a door body, a swing arm and a motor, wherein one end of the swing arm is connected with the door body, the other end of the swing arm is connected with the motor through a meshing gear, and the motor drives the swing arm to drive the valve to be opened.

The prior art has the following disadvantages: the size of the shell of the seal is usually limited, the valve can be adapted to the size of the shell only by turning in the opening and closing processes, the swing arm can be connected with one end of the valve only, the swing arm needs to push or pull the valve in the opening or closing process of the valve, the turning of the valve is very easy to generate clamping stagnation in the pushing process, the valve cannot be opened or closed, and therefore the use and the function of the safety seal are affected.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, the valve is arranged into a crawler belt structure, the crawler belt is formed by the door plate, two ends of the door plate are connected with the chain through chain pins, the guide rail is arranged on the outer side of the chain, a chain shaft is embedded into the guide rail in an extending mode, the side face of the valve is provided with the guide chain wheel, the chain teeth of the guide chain wheel are inserted into the chain, the guide chain wheel is connected with the motor in a rotating mode, the motor drives the guide chain wheel to rotate, and the chain teeth drive the chain to move, so that two sides of the valve are always restrained by the guide rail in the opening or closing process, and the clamping stagnation phenomenon of the valve in the opening and closing process is avoided.

The invention provides a valve of a safety seal, which comprises a door plate and a motor which are connected in a crawler-type manner, wherein the valve also comprises a chain and a guide chain wheel; chain pins extend out of two ends of the door panel and are inserted into the rotating shafts of the chains or directly form the rotating shafts of the chains; the outer side of the chain is also provided with a guide rail, the guide rail is formed by a guide rail groove arranged on the guide rail plate or a guide rail seam penetrating through the guide rail plate, the guide rail is divided into a transverse section and a vertical section, the transverse section corresponds to the closing position of the valve, the vertical section corresponds to the opening position of the valve, the transverse section and the vertical section enable the valve to be in a smaller outline space when opened and closed, the situation that the volume of the safety seal is overlarge is avoided, the transverse section and the vertical section are in arc transitional connection, the radius of the arc is matched with the length of the chain, the chain cannot be blocked when moving along the guide rail, a guide column extends out of a rotating shaft of the chain, the guide column is embedded into the guide rail, the sprocket of the guide sprocket is inserted into the chain, and the guide sprocket rotates to drive the chain and the door panel to move along the guide rail; the motor shaft is provided with a driving gear or a driving chain wheel or a driving belt wheel, the guide chain wheel is also provided with a corresponding transmission gear or a transmission chain wheel or a transmission belt wheel, the motor is meshed with the transmission gear through the driving gear, or the driving chain wheel is connected with the transmission chain wheel through a transmission chain, or the driving belt wheel is connected with the transmission belt wheel through a transmission belt, and the guide chain wheel is driven to rotate.

In the technical scheme, the rotating axis of the guide chain wheel coincides with the circle center of the arc, so that the guide chain wheel keeps consistent with the arc steering of the chain when rotating, and the chain can smoothly pass through the arc.

In the technical scheme, the two guide chain wheels correspond to the chains at the two ends of the door plate respectively, so that the chains on the two sides of the valve can be driven by the guide chain wheels in a balanced manner, and the guide chain wheels are provided with the transmission gears or the transmission chain wheels or the transmission belt wheels respectively.

Further preferably, the motor rotating shaft is led out from one end of the motor or two ends of the motor; when the motor rotating shaft is led out from one end of the motor, a connecting shaft is arranged between two corresponding driving gears or between two corresponding driving chain wheels or between two corresponding driving belt wheels, so that the guide chain wheels are ensured to be synchronous; when the motor rotating shaft is led out from the two ends of the motor, the two ends are provided with a driving gear or a driving chain wheel or a driving belt wheel.

Compared with the prior art, the track shoe comprises the valve body and the door plate, the two ends of the door plate are connected with the chain through the chain pins, the guide rail is arranged on the outer side of the chain, the chain shaft extends into the guide rail, the guide chain wheel is arranged on the side face of the valve, the chain teeth of the guide chain wheel are inserted into the chain and are rotationally connected with the motor, the motor drives the guide chain wheel to rotate, and the chain teeth drive the chain to move, so that the two sides of the valve are always restrained by the guide rail in the opening or closing process, and the clamping stagnation phenomenon of the valve in the opening and closing process is avoided.

Drawings

FIG. 1 is a perspective view (down view) of a security stamp of the present invention;

FIG. 2 is a perspective view of the shutter of the security seal of the present invention (top view, with the housing hidden, with the shutter open and closed);

FIG. 3 is a perspective view of a shutter of a security seal of the present invention (with the guide plate exploded, the shutter closed);

fig. 4 is a perspective view of a shutter of a security stamp of the present invention (with a guide rail plate hidden, the shutter closed).

The following reference numerals are marked thereon in conjunction with the accompanying drawings:

1-a housing; 2-a valve; 21-a door panel; 3, a chain; 31-a guide post; 4-a guide sprocket; 41-sprocket; 5-a guide rail; 51-a transverse segment; 52-vertical section; 53-circular arc; 54-a guide rail plate; 6, a motor; 7-a transmission gear; 8-connecting shaft.

Detailed Description

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.

The invention

The valve of the safety seal is shown in figure 1, the safety seal is provided with a shell 1, a valve 2 is arranged at the bottom of the shell, and the valve 2 shown at the lower end of the shell 1 is in a closed position.

As further shown in fig. 2, 3 and 4, the shutter 2 comprises a door plate 21 and a motor 6 which are connected in a crawler type, and further comprises a chain 3 and a guide chain wheel 4; chain pins extend from two ends of the door panel 21, and the chain pins are inserted into the chain to directly form a rotating shaft of the chain (or the chain pins are inserted into the rotating shaft of the chain); the outer side of the chain 2 is also provided with a guide rail 5, the guide rail 5 is formed by a guide rail seam which is arranged on a guide rail plate 54 and penetrates through the guide rail plate, the guide rail is divided into a transverse section 51 and a vertical section 52, the transverse section 51 corresponds to the closing position of the valve, the vertical section 52 corresponds to the opening position of the valve, the transverse section 5 is in transitional connection with the vertical section 52 through an arc 53, the radius of the arc 53 is matched with the length of the chain, so that the chain cannot be clamped when moving along the guide rail, and the rotating axis of the guide chain wheel 4 is coincided with the circle center of the arc, so that the guide chain wheel keeps consistent with the arc turning direction of the chain when rotating; the rotating shaft of the chain extends out of the guide post 31, the guide post 31 is embedded into the guide rail 5, the sprocket 41 of the guide sprocket 4 is inserted into the chain, and the guide sprocket rotates to drive the chain and the door panel to move along the guide rail; the motor rotating shaft is provided with a driving gear (or a driving chain wheel or a driving belt wheel), the guide chain wheel is also provided with a transmission gear 7 (or a transmission chain wheel or a transmission belt wheel) which is correspondingly meshed, and the transmission gear 7 is formed by meshing a plurality of gears step by step, so that the motor can have smaller size and torque to drive the guide chain wheel to rotate.

As further shown in fig. 2, 3 and 4, two guide chain wheels 4 are provided, and correspond to the chains 3 at the two ends of the door panel respectively, so that the chains 3 at the two sides of the valve 2 can be driven by the guide chain wheels 4 in a balanced manner at the same time, and the guide chain wheels 4 are provided with transmission gears 7 (or transmission chain wheels or transmission belt wheels) respectively; the motor rotating shaft is led out from one end of the motor or two ends of the motor; when the motor rotating shaft is led out from one end of the motor, a connecting shaft 8 is arranged between two corresponding driving gears (or between two corresponding driving chain wheels or between two corresponding driving belt wheels) to ensure that the two guiding chain wheels keep synchronous; when the motor rotating shaft is led out from the two ends of the motor, the two ends are both provided with a driving gear (or a driving chain wheel or a driving belt wheel).

Compared with the prior art, the door plate of the valve is of a crawler belt structure, two ends of the crawler belt are connected with the chain through the chain pins, the guide rail is arranged on the outer side of the chain, the chain shaft extends and is embedded into the guide rail, the guide chain wheel is arranged on the side of the guide rail, the chain teeth of the guide chain wheel are inserted into the guide chain wheel, the guide chain wheel is rotatably connected with the motor, the motor drives the guide chain wheel to rotate, and the chain teeth drive the chain to move, so that two ends of the valve are always subjected to rigid constraint in the opening or closing process, and the clamping stagnation phenomenon of the valve in the opening and closing process is avoided.

The above disclosure is only one specific embodiment of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.