CN207229506U - A common rod cylinder - Google Patents

Abstract

The utility model discloses a total pole jar, including piston rod and a plurality of cylinder body, the piston rod passes each cylinder body in proper order and seals with the cylinder body, and the corresponding piston assembly that is equipped with in each cylinder body, piston assembly fixed connection in each cylinder body is equipped with working medium on each cylinder body, on piston assembly's both sides and imports and exports. The device is provided with a plurality of cylinder bodies and one or two piston rods. The left or right cylinder body is fixed, the piston rod is pushed to do linear motion by the cylinder body, and then the other cylinder bodies move to clamp or do other motions, so that the linear motion can be realized and other motions can be also done. By using the common rod cylinder, the supporting mechanism can be reduced, the space is saved, and the cost is saved.

Description

A common rod cylinder

【Technical field】

The utility model relates to a common rod cylinder.

【Background technique】

Present cylinders or oil cylinders are all single and independent, and can only realize a single action in a straight line. And when will increase thrust, will use the active force of two or more cylinders or oil cylinders on the same axis, will increase support mechanism, volume is big, takes up space, increases cost.

【Content of utility model】

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a common rod cylinder that can realize linear movement and clamping.

For the above purpose, the utility model adopts the following technical solutions:

A common rod cylinder is characterized in that it includes a piston rod 1 and a plurality of cylinder bodies 2, the piston rod 1 passes through each cylinder body 2 in turn and is sealed with the cylinder bodies, and a piston assembly 3 is correspondingly provided in each cylinder body 2 , the piston assembly 3 in each cylinder body 2 is fixedly connected to the piston rod 1, and the working medium inlet and outlet 4 are provided on each cylinder body 2 and both sides of the piston assembly 3 .

A common rod cylinder as described above is characterized in that there are two cylinder bodies 2 and one piston rod 1 .

A common rod cylinder as described above is characterized in that there are two cylinder bodies 2 and two piston rods 1 .

A common rod cylinder as described above is characterized in that there are three cylinder bodies 2 and one piston rod 1 .

A common rod cylinder as described above is characterized in that there are three cylinder bodies 2 and two piston rods 1 .

A common rod cylinder as described above is characterized in that the cross-section of the piston rod is circular, elliptical or polygonal.

The beneficial effects of the utility model have:

This case is provided with a plurality of cylinder bodies, one or two piston rods. Fix the cylinder on the left or right, use the cylinder to push the piston rod for linear motion, and then use the movement of other cylinders to clamp the work or do other actions to achieve linear motion or other actions. Using the common rod cylinder can reduce the number of supporting mechanisms, save space and save cost.

【Description of drawings】

Fig. 1 is the utility model two cylinder bodies, the schematic diagram of a piston rod.

Fig. 2 is two cylinder bodies of the utility model, the schematic diagram of two piston rods.

Fig. 3 is the schematic diagram of three cylinder bodies and one piston rod of the utility model.

【Detailed ways】

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail:

As shown in the figure, a common-rod cylinder includes a piston rod 1 and a plurality of cylinders 2, and the piston rod 1 passes through each cylinder 2 in sequence and is sealed with the cylinders. Each cylinder 2 is correspondingly provided with a piston assembly 3, and the piston assembly 3 in each cylinder 2 is fixedly connected to the piston rod 1. On each cylinder 2, the two sides of the piston assembly 3 are provided with a working medium inlet. exit 4. In this way, media are respectively connected to the inlet and outlet 4 of the working medium, and the media can be air, hydraulic oil or the like. The following options can be used to implement this case:

Example one, there are two cylinder blocks 2, and one piston rod 1. As shown in Figure 1, when the cylinder A is fixed, when the external force presses the working medium into the left side of the cylinder A, under the action of pressure, the piston moves to the right with the piston rod and other cylinders. When the cylinder A When the left side of B is pressed into the working medium, under the action of pressure, cylinder B moves to the left; when the working medium is pressed into the right side of cylinder A by external force, under the action of pressure, the piston takes the piston rod and other cylinders The body moves to the left, when the right side of the cylinder B is pressed into the working medium, under the action of the pressure, the cylinder B moves to the right. The leftward or rightward movement of cylinder B can drive other tools for clamping or other operations. When the piston rod is fixed, when the external force presses the working medium into the right side of cylinder A, under the action of pressure, cylinder A moves to the right; when the left side of cylinder B is pressed into the working medium, under the action of pressure , the cylinder B moves to the left; when the external force presses the working medium into the left side of the cylinder A, under the action of the pressure, the cylinder A moves to the left; when the right side of the cylinder B is pressed into the working medium, under the pressure Under the action, cylinder B moves to the right.

Example 2: There are two cylinder bodies 2 and two piston rods 1 . As shown in Figure 2, its action is the same as that of Embodiment 1. When the cylinder A is fixed, when the external force presses the working medium into the left side of the cylinder A, under the action of pressure, the two pistons will carry two The piston rod and other cylinders move to the right. When the working medium is pressed into the left side of the cylinder B, under the action of pressure, the cylinder B moves to the left; when the external force presses the working medium into the right side of the cylinder A, in Under the action of pressure, the two pistons move to the left with the two piston rods and other cylinders. The leftward or rightward movement of cylinder B can drive other tools for clamping or other operations. Double piston rod 1 is adopted to make it push more powerfully and move more smoothly.

Example three, there are three cylinder blocks 2, and one piston rod 1. Use three cylinders, fix the left or right cylinder, use this cylinder to push the piston rod for linear motion, and then use the movement of other cylinders to clamp the work or do other actions to achieve both linear motion and Can do other actions. Using the common rod cylinder can reduce the number of supporting mechanisms, save space and save cost.

Example four, cylinder block 2 is three, and piston rod 1 is two. Its function and action are similar to Example 3, and will not be described in detail here.

In addition, in the above several embodiments, the cross-section of the piston rod is circular, elliptical or polygonal. The non-circular shape of the piston rod is used so that the cylinder body will not rotate when it is in motion.

Claims (6)

1. A common rod cylinder is characterized in that comprising a piston rod (1) and a plurality of cylinders (2), and the piston rod (1) passes through each cylinder (2) successively and is sealed with the cylinders. A piston assembly (3) is correspondingly provided in the cylinder body (2), and the piston assembly (3) in each cylinder body (2) is fixedly connected on the piston rod (1), and on each cylinder body (2), the piston Both sides of the component (3) are provided with working medium inlets and outlets (4). 2. A common rod cylinder according to claim 1, characterized in that there are two cylinder bodies (2) and one piston rod (1). 3. A common rod cylinder according to claim 1, characterized in that there are two cylinder bodies (2) and two piston rods (1). 4. A common rod cylinder according to claim 1, characterized in that there are three cylinder bodies (2) and one piston rod (1). 5. A common rod cylinder according to claim 1, characterized in that there are three cylinder bodies (2) and two piston rods (1). 6. A common rod cylinder according to claim 1 or 2 or 3 or 4 or 5, characterized in that the cross-section of the piston rod is circular, elliptical or polygonal.