DE202020005462U1 - Damping device with fixing structure - Google Patents

Abstract

A damping device with a fixation structure comprising a tube and a valve rod penetrating through the tube and assembled with the tube in sliding seal, the damping device further comprising an inner tube plate, a piston rod and an electrical head assembly, the inner tube plate being disposed in the tube and a Space in the tube is divided into a first tube cavity and a second tube cavity which are independent and communicating with one another, the valve rod has one end which is assembled in sliding seal with the second tube cavity and divides the second tube cavity into two independent sub-cavities of variable volume , a piston hole is formed in the tube, the piston rod is arranged directly or indirectly in a sliding seal in the piston hole and the electrical head assembly is arranged on an outer wall of the tube and serves to drive the piston rod; wherein the piston rod, when in the first tube cavity, divides the first tube cavity into two independent compartments.

Description

Field of invention

The invention relates to the field of buffering equipment and, more particularly, to a damping device with a fixing structure.

State of the art

Damping rods are currently widely used buffering equipment. Existing damping rods only have a buffering effect, but cannot achieve a fixing function, since both ends of the damping rods extend or retract due to the action of force.

As a rule, there are two types of damping rods, namely damping rods based on springs and damping rods based on liquid media. Since the liquid medium that damping rods based on liquid media use is always in a flowing state, these damping rods extend or retract under the action of force. In order to achieve a fixation function of these damping rods, the liquid medium must change between a flowing state and a non-flowing state.

Object of the invention

In order to solve the problems mentioned, the invention provides a damping device with a fixing structure.

• Eine Dämpfungsvorrichtung mit Fixierungsstruktur umfasst ein Rohr und eine Ventilstange, die durch das Rohr dringt und mit dem Rohr in Gleitdichtung zusammengebaut ist, und umfasst ferner eine innere Rohrplatte, eine Kolbenstange und eine elektrische Kopfbaugruppe, wobei die innere Rohrplatte im Rohr angeordnet ist und einen Raum im Rohr in einen ersten Rohrhohlraum und einen zweiten Rohrhohlraum unterteilt, die voneinander unabhängig sind und miteinander in Verbindung stehen, die Ventilstange ein Ende aufweist, das mit dem zweiten Rohrhohlraum in Gleitdichtung zusammengebaut ist und den zweiten Rohrhohlraum in zwei unabhängige Unterhohlräume von variablem Volumen unterteilt, ein Kolbenloch im Rohr gebildet ist, die Kolbenstange mittelbar oder unmittelbar in Gleitdichtung im Kolbenloch angeordnet ist und die elektrische Kopfbaugruppe an einer Außenwand des Rohrs angeordnet ist und zum Antreiben der Kolbenstange dient; wobei die Kolbenstange, wenn sie im ersten Rohrhohlraum ist, den ersten Rohrhohlraum in zwei unabhängige Abteilungen unterteilt.

The technical solution applied by the present invention is as follows:

• A damping device with fixing structure comprises a tube and a valve rod penetrating through the tube and assembled with the tube in sliding seal, and further comprises an inner tube plate, a piston rod and an electrical head assembly, the inner tube plate being disposed in the tube and a space divided in the tube into a first tube cavity and a second tube cavity which are independent and communicating with one another, the valve rod has one end which is assembled in sliding seal with the second tube cavity and divides the second tube cavity into two independent sub-cavities of variable volume, a piston hole is formed in the tube, the piston rod is arranged directly or indirectly in a sliding seal in the piston hole and the electrical head assembly is arranged on an outer wall of the tube and serves to drive the piston rod; wherein the piston rod, when in the first tube cavity, divides the first tube cavity into two independent compartments.

Compared to conventional damping rods based on a liquid medium, the inner tube plate is arranged in the tube of the damping device to divide the space in the tube into the first tube cavity and the second tube cavity, which are independent of each other and are in communication with each other, one end of the valve rod is assembled in sliding seal with the wall of the second tube cavity, the convection of damping fluid ona two sides of the valve rod is achieved through the first tube cavity and the piston rod can move to block or clear the first tube cavity; when the first tube cavity is blocked, the convection of liquid on the two sides of the valve rod is stopped and the valve rod can no longer move; and when the piston rod moves again to communicate the first tube lumen with the second tube lumen, the convection of the damping fluid starts again on the two sides of the valve rod and the valve rod can move again.

According to the damping device, the inner tube plate is arranged to divide the space in the tube into the first tube cavity and the second tube cavity, which are independent of each other and are in communication with each other, and the convection of the damping liquid on two sides of the valve rod is caused by the movement of the Piston rod controlled, so that both a buffer function and a carrying function are achieved and switching is convenient and quick.

Optionally, a valve block is disposed on a portion of the valve stem and is assembled with the tube and inner tube plate in a sliding seal.

The valve block is part of the valve stem, which is a well-known technique.

Optionally, the tube is provided with a sealing ring for sealing a gap between the tube and the valve stem.

The sealing ring is optionally arranged in the pipe.

The sealing ring is used to prevent leakage between the valve rod and the pipe.

Optionally, a first communication hole is formed in the valve stem, a second communication hole is formed in the tube, and the first Connection hole and the second connection hole are both arranged outside of the pipe.

Optionally, the electrical head assembly is sealed in the piston hole, the piston rod is attached to the electrical head assembly, and the electrical head assembly is used to drive the piston rod.

In particular, movement of the piston rod on the tube can be accomplished in a number of ways, and the piston rod can move with respect to the electrical head assembly by means of electromagnetic control, or the piston rod can be driven by a motor or cylinder.

Optionally, the first tube cavity and the second tube cavity are filled with damping fluid.

Optionally, a cross-section of the first tube cavity is circular, oval, square, or quincunx-shaped; or the cross section of the first tube cavity is a combined shape of the circular shape, a triangular shape and the square shape.

This is a method of changing the damping force of the damping fluid in the pipe. The damping force of the damping liquid can also be changed by changing the internal roughness of the first tube cavity or by changing the length of the first tube cavity. All of these three methods can change the damping force of the damping fluid in the pipe.

The invention has the following advantageous effects: The inner tube plate is arranged to divide the space in the tube into the first tube cavity and the second tube cavity, which are independent of one another and are in communication with one another, and the convection of the damping liquid on two sides of the The valve rod is controlled by the movement of the piston rod, so that both a buffer function and a carrying function are achieved and switching is convenient and quick.

Figure list

• 1 is a simplified structural representation of a damping device with a fixing structure.

List of reference symbols

101:

Valve rod;

10101:

Valve block;

102:

Sealing ring;

103:

Pipe;

104:

Damping fluid;

105:

inner tube plate;

106:

Piston rod;

107:

electrical head assembly;

108:

Wire;

109:

first communication hole;

110:

second connection hole;

111:

first tube cavity;

112:

second tube cavity;

11201:

Sub-cavity

Description of the Preferred Embodiments

The invention is described in detail below with reference to the accompanying drawings.

As in 1 As shown, a damping device with a fixing structure comprises a tube 103 and a valve rod 101 , with the valve rod 101 the pipe 103 penetrates and with the pipe 103 is assembled in sliding seal. The damping device further includes an inner tube plate 105 , a piston rod 106 and an electrical head assembly 107 , with the inner tube plate 105 in the pipe 103 is arranged and a space in the pipe 103 into a first tube cavity 111 and a second tube cavity 112 divided, which are independent of each other and are connected to each other, the valve rod 101 has one end that is connected to the second tube cavity 112 is assembled in sliding seal and the second tube cavity 112 into two independent sub-cavities 11201 divided with variable volume, a piston hole in the tube 103 is formed, the piston rod 106 is arranged directly or indirectly in the sliding seal in the piston hole and the electrical head assembly 107 on an outer wall of the pipe 103 is arranged and for driving the piston rod 106 serves; being the piston rod 106 when in the first tube cavity 111 is the first tube cavity 111 divided into two independent departments. One wire 108 for supplying the electrical head assembly 107 with power is with the electrical head assembly 107 connected.

Compared to conventional damping rods based on a liquid medium, the inner tube plate is 105 in the pipe 103 the damping device arranged to the space in the pipe 103 into the first tube cavity 111 and the second tube cavity 112 to subdivide, which are independent of one another and are in communication with one another, one end of the valve rod is with the wall of the second tube cavity 112 assembled in sliding seal, the convection of damping fluid 104 on two sides of the valve stem 101 is through the first tube cavity 111 is achieved and the piston rod can move to the first tube cavity 111 to block or unblock; when the first tube cavity 111 is blocked, the convection of liquid will be on the two sides of the valve stem 101 stopped, and the valve rod 101 can no longer move; and if the piston rod 106 moves again to the first tube cavity 111 with the second tube cavity 112 To put in connection, the convection of the damping fluid begins 104 on the two sides of the valve stem 101 again and the valve rod 101 can move again.

Referring to 1 the operation of the damping device is further described. When the first tube cavity 111 not through the piston rod 106 is blocked, there is a degree of restriction on the movement of the valve rod for the following reason 101 to the right forward (that is, the amount of compression is limited): When the valve rod 101 moves to the right, the damping fluid flows in a right sub-cavity 11201 into a left sub-cavity 11201 , the damping fluid in the pipe 103 will increase with the size of the tube 103 extending valve rod 101 compressed (compressed), whereby the damping fluid can only be compressed within a limited amount, therefore a restriction on the movement of the valve rod 101 is present. When the first tube cavity 111 through the piston rod 106 blocked, the damping fluid in the right sub-cavity 11201 as the valve rod continues to move 101 to the right also does not flow any further and is partially compressed, whereupon the valve rod is 101 cannot move further to the right after a certain movement to the right. When the valve rod moves 101 the valve rod can move to the left 101 likewise do not move further to the left when in the left cavity 11201 a negative pressure is created.

According to the damping device is the inner tube plate 105 arranged to the space in the pipe 103 into the first tube cavity 111 and the second tube cavity 112 to subdivide that are independent of each other and are related to each other, and the convection of the damping fluid 104 on two sides of the valve stem 101 is made by the movement of the piston rod 106 controlled so that both a buffer function and a carrying function can be achieved and switching is convenient and quick.

As in 1 shown is a valve block 10101 on a portion of the valve rod 101 arranged and with the pipe 103 and the inner tube plate 105 assembled in sliding seal.

The valve block 10101 is part of the valve stem 101 which is a mature well known technique.

As in 1 shown is the pipe 103 with a sealing ring 102 to seal a gap between the pipe 103 and the valve stem 101 Mistake.

As in 1 shown is the sealing ring 102 in the pipe 103 arranged.

The sealing ring 102 is used to prevent leakage between the valve stem 101 and the pipe 103 .

As in 1 shown is a first communication hole 109 in the valve stem 101 formed a second communication hole 110 is in the pipe 103 formed and the first communication hole 109 and the second communication hole 110 are both outside the tube 103 arranged.

As in 1 shown is the electrical head assembly 107 The piston rod is arranged in a sealed manner in the piston hole 106 is on the electrical head assembly 107 attached and the electrical head assembly 107 serves to drive the piston rod 106 .

In detail, the movement of the piston rod 106 on the pipe 103 can be achieved in different ways, and the piston rod 106 may differ in relation to the electrical head assembly 107 move by means of electromagnetic control or the piston rod 106 driven by a motor or a cylinder.

As in 1 shown are the first tube cavity 111 and the second tube cavity 112 with damping fluid 104 filled.

The above embodiments are merely preferred embodiments of the invention and are not intended to limit the scope of the invention. All equivalent structural modifications according to the content of the description and the drawings or direct or indirect applications to other relevant technical fields also fall within the scope of protection of the invention.

Claims (8)

A damping device with a fixing structure comprising a tube and a valve rod penetrating through the tube and in sliding seal with the tube is assembled, wherein the damping device further comprises an inner tube plate, a piston rod and an electrical head assembly, the inner tube plate is arranged in the tube and divides a space in the tube into a first tube cavity and a second tube cavity, which are independent of one another and are in communication with one another , the valve rod has one end which is assembled with the second tube cavity in sliding seal and divides the second tube cavity into two independent sub-cavities of variable volume, a piston hole is formed in the tube, the piston rod is arranged directly or indirectly in sliding seal in the piston hole and the electrical Head assembly is disposed on an outer wall of the tube and serves to drive the piston rod; wherein the piston rod, when in the first tube cavity, divides the first tube cavity into two independent compartments. Damping device with fixation structure according to Claim 1 wherein a valve block is disposed on a portion of the valve stem and is assembled with the tube and the inner tube plate in sliding seal. Damping device with fixation structure according to Claim 1 wherein the tube is provided with a sealing ring for sealing a gap between the tube and the valve rod. Damping device with fixation structure according to Claim 3 , wherein the sealing ring is arranged in the pipe. Damping device with fixation structure according to Claim 1 wherein a first communication hole is formed in the valve rod, a second communication hole is formed in the pipe, and the first communication hole and the second communication hole are both located outside the pipe. Damping device with fixation structure according to Claim 1 wherein the electrical head assembly is sealed in the piston hole, the piston rod is attached to the electrical head assembly, and the electrical head assembly is used to drive the piston rod. Damping device with fixation structure according to Claim 1 wherein the first tube cavity and the second tube cavity are filled with damping fluid. Damping device with fixation structure according to Claim 1 wherein a cross section of the first tube cavity is circular, oval, square, or quincunx shaped; or the cross section of the first tube cavity is a combined shape of the circular shape, a triangular shape and the square shape.

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