A new double rod cylinder

By integrating the power cable layout into the dual-rod cylinder and using a silicone pad to absorb kinetic energy, the power cable impact problem was solved, achieving stable cylinder operation and structural optimization.

CN224301152UActive Publication Date: 2026-05-29QIWEI IND (GUANGDONG) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QIWEI IND (GUANGDONG) CO LTD
Filing Date
2025-06-07
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing dual-rod cylinder has a complex structure, and the horizontally laid power cord of the magnetic switch causes the top plate to hit the power cord, affecting the normal use of the cylinder.

Method used

A novel dual-rod cylinder is designed, which integrates the power cord layout with a limiting component. The power cord is stored in the guide groove and the limiting groove to avoid collision between the top plate and the power cord. The end kinetic energy is absorbed by the silicone pad, and the screw is hidden to prevent motion interference.

Benefits of technology

It achieves a simple structure and reasonable design, avoids interference from exposed power lines, ensures normal cylinder operation, and reduces metal collision damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to cylinder technical field, concretely to a novel double -out -bar cylinder, this double -out -bar cylinder includes cylinder body, piston rod, roof, stroke adjusting nut, buffer and limiting component, and piston rod is located the both ends inside cylinder body, the surface fixed in the both sides of piston rod roof, the inside of stroke adjusting nut is screwed on the roof, buffer is located the inside of stroke adjusting nut, and limiting component is located the corner of cylinder top, limiting component includes support frame, guide groove, limiting groove and limiting plate, support frame is fixed in the corner of cylinder upper surface, and guide groove and limiting groove are set up in the inside away from cylinder one end, and limiting groove is located the one end away from cylinder of guide groove, and guide groove is set up in the inside of support frame in transverse. The utility model has the advantages of simple structure, reasonable in design, and the power line of magnetic switch is properly stored up, avoids the impact of roof and power line, and the advantages that influence cylinder normal operation.
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Description

Technical Field

[0001] This utility model relates to the field of cylinder technology, specifically a novel double-rod cylinder. Background Technology

[0002] As a core actuator in the field of industrial automation, cylinders are widely used in mechanical manufacturing, industrial robots, logistics equipment and other scenarios. Their function is to convert compressed air energy into linear motion mechanical energy. Traditional single-rod cylinders often require additional guiding devices due to the asymmetrical force at both ends. However, double-rod cylinders, with their symmetrical structural design, naturally have advantages such as strong resistance to off-center loads and symmetrical installation space, making them suitable for high-precision positioning, high-frequency reciprocating motion and other scenarios.

[0003] The existing double-rod cylinder has a relatively complex structure and an unreasonable design. In actual use, because the power cord of the magnetic switch is laid horizontally inside the mounting groove, the top plate will continuously hit the power cord when it reciprocates. Over time, the power cord will be damaged, affecting the normal use of the cylinder. To address this problem, the inventor has designed a new type of double-rod cylinder. Utility Model Content

[0004] The purpose of this utility model is to provide a novel double-rod cylinder, which has the advantages of simple structure, reasonable design, and proper storage of the power cord of the magnetic switch, avoiding collision between the top plate and the power cord, which would affect the normal operation of the cylinder, and solves the problems mentioned in the above technical background.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel double-rod cylinder, comprising a cylinder body, a piston rod, a top plate, a stroke adjusting nut, a buffer component, and a limiting component; the piston rod is located at both ends inside the cylinder body, the top plate is fixed to the surfaces on both sides of the piston rod, the stroke adjusting nut is threaded into the interior of the top plate, the buffer component is located inside the stroke adjusting nut, and the limiting component is located at one corner of the top of the cylinder body;

[0006] The limiting component includes a support frame, a guide groove, a limiting groove, and a limiting plate. The support frame is fixed to one corner of the upper surface of the cylinder body. The guide groove and the limiting groove are opened inside the cylinder body at the end away from the cylinder body. The limiting groove is located at the end of the guide groove away from the cylinder body. The guide groove is opened horizontally inside the support frame and extends through the inside of the support frame. The limiting groove is opened vertically inside the support frame and extends only through the top of the support frame. The limiting plate extends through and is connected to the inside of the top of the support frame.

[0007] Preferably, the support frame has a movable groove at the bottom near the cylinder body, and a spring is fixed inside the movable groove.

[0008] Preferably, a guide post is fixed to the surface of the limiting plate near the cylinder body, and a guide plate is fixed to the top of the spring.

[0009] Preferably, a connecting post is fixed to the top surface of the guide plate, and the connecting post is inserted inside the guide post.

[0010] Preferably, the buffer includes a silicone pad, a mounting hole, and a screw; the silicone pad is attached to the surface of the stroke adjusting nut, the mounting hole is opened inside the silicone pad, and the cross-section of the mounting hole is convex; the screw is threadedly connected to the silicone pad and the inside of the stroke adjusting nut, and the screw is completely retracted inside the mounting hole.

[0011] Preferably, the screw has a screw hole inside, and the screw hole is hexagonal.

[0012] Preferably, the top of the cylinder body near the support frame has a mounting groove, a magnetic switch is snapped into the mounting groove, and the power cord of the magnetic switch is located inside the guide groove and the limiting groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This utility model provides a novel double-rod cylinder, which includes a cylinder body, piston rod, top plate, stroke adjusting nut, buffer component, and limiting assembly. The limiting assembly includes a support frame, guide groove, limiting groove, and limiting plate. The overall structure is simple and reasonably designed. The power cable layout is integrated through the guide groove and limiting groove to avoid exposed wires interfering with the cylinder movement. Furthermore, under the restriction of the limiting plate, the power cable can be restricted to the top of the support frame, thereby properly storing the power cable of the magnetic switch and preventing the top plate from colliding with the power cable and affecting the normal operation of the cylinder.

[0015] This invention uses a silicone pad to directly adhere to the stroke adjustment nut, absorbing the end kinetic energy and reducing metal collisions. Furthermore, the screw is completely concealed within the "U"-shaped mounting hole, avoiding motion interference and preventing thread damage. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 This is a structural diagram of the magnetic switch of this utility model;

[0018] Figure 3 This is a cross-sectional view of the limiting component of this utility model;

[0019] Figure 4 This is a cross-sectional view of the buffer component of this utility model.

[0020] The reference numerals and names in the figure are as follows:

[0021] 1. Cylinder block; 2. Piston rod; 3. Top plate; 4. Stroke adjusting nut; 5. Buffer component; 51. Silicone pad; 52. Mounting hole; 53. Screw; 54. Screw hole; 6. Mounting slot; 7. Magnetic switch; 8. Limiting component; 81. Support frame; 82. Guide slot; 83. Limiting slot; 84. Movable slot; 85. Limiting plate; 86. Guide post; 87. Spring; 88. Guide plate; 89. Connecting post. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0024] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0025] Please see Figures 1 to 4The present invention provides an embodiment of a novel double-rod cylinder, which includes a cylinder body 1, a piston rod 2, a top plate 3, a stroke adjusting nut 4, a buffer 5, and a limiting component 8. The piston rod 2 is located at both ends inside the cylinder body 1, the top plate 3 is fixed to the surfaces on both sides of the piston rod 2, the stroke adjusting nut 4 is threaded into the interior of the top plate 3, the buffer nut 5 is located inside the stroke adjusting nut 4, and the limiting component 8 is located at one corner of the top of the cylinder body 1.

[0026] The cylinder body 1 is the main structure of the cylinder, the piston rod 2 is a bidirectional rod design to realize the reciprocating linear motion of the cylinder and transmit power to the external load. The top plate 3 is used to connect the external load or transmit force, and at the same time serves as the mounting base for the stroke adjusting nut 4. The stroke adjusting nut 4 changes the position of the top plate 3 by rotating the thread, and precisely adjusts the stroke range of the piston rod 2.

[0027] The limiting component 8 includes a support frame 81, a guide groove 82, a limiting groove 83, and a limiting plate 85. The support frame 81 is fixed to one corner of the upper surface of the cylinder body 1. The guide groove 82 and the limiting groove 83 are opened inside the cylinder body 1. The limiting groove 83 is located at the end of the guide groove 82 away from the cylinder body 1. The guide groove 82 is opened horizontally inside the support frame 81 and extends through the inside of the support frame 81. The limiting groove 83 is opened vertically inside the support frame 81 and extends only through the top of the support frame 81. The limiting plate 85 extends through and is connected to the inside of the top of the support frame 81.

[0028] The support frame 81 provides an installation base for the power cord management and the limiting plate 85. The guide groove 82 is used to place the power cord on the top of the support frame 81, the limiting groove 83 is used to lock the power cord inside the support frame 81, and the limiting plate 85 is used to close the groove and lock the power cord.

[0029] The bottom of the support frame 81 near the cylinder 1 has a movable groove 84, and a spring 87 is fixed inside the movable groove 84.

[0030] The movable groove 84 is used to receive and install the spring 87, which provides a spring force reset function and automatically locks the limit plate 85;

[0031] A guide post 86 is fixed to the surface of the limiting plate 85 near the cylinder 1, and a guide plate 88 is fixed to the top of the spring 87.

[0032] The guide post 86 is used to change the position of the limiting plate 85, while the guide plate 88 is used to change the position of the connecting post 89.

[0033] A connecting post 89 is fixed to the top surface of the guide plate 88, and the connecting post 89 is inserted into the guide post 86;

[0034] The connecting post 89 is used to limit the guide post 86 to the desired position, thereby limiting the limiting plate 85 inside the support frame 81;

[0035] The buffer 5 includes a silicone pad 51, a mounting hole 52, and a screw 53. The silicone pad 51 is attached to the surface of the stroke adjusting nut 4. The mounting hole 52 is opened inside the silicone pad 51, and the cross-section of the mounting hole 52 is convex. The screw 53 is threaded into the silicone pad 51 and the inside of the stroke adjusting nut 4, and the screw 53 is completely retracted inside the mounting hole 52.

[0036] The silicone pad 51 fits against the surface of the stroke adjusting nut 4 to absorb the impact at the end of the stroke adjusting nut 4. The mounting hole 52 is used to fix the silicone pad 51 and hide the screw 53 to prevent the screw 53 from being exposed. The screw 53 is used to fix the silicone pad 51 in the required position.

[0037] The screw 53 has a screw hole 54 inside, and the screw hole 54 is hexagonal in shape;

[0038] The design of the screw hole 54 makes it easy to insert tools into the screw 53 to disassemble and assemble the screw 53;

[0039] A mounting groove 6 is provided at the top of one end of the cylinder body 1 near the support frame 81. A magnetic switch 7 is snapped into the inside of the mounting groove 6, and the power cord of the magnetic switch 7 is located inside the guide groove 82 and the limiting groove 83.

[0040] Mounting slot 6 is used to receive and install magnetic switch 7, which is used to detect the position of piston rod 2 and control the start and stop of cylinder.

[0041] Working principle: When the device is running, first apply rotational force to the stroke adjusting nut 4 so that the top plate 3 is adjusted to the required position. Then, start the device through the magnetic switch 7. The piston rod 2 reciprocates inside the cylinder 1. With the design of the silicone pad 51, the pressure of the stroke adjusting nut 4 on the cylinder 1 can be reduced.

[0042] When the magnetic switch 7 needs to be installed inside the cylinder 1, insert the magnetic switch 7 into the mounting slot 6, lay the power cord of the magnetic switch 7 inside the guide slot 82, and then lock the power cord inside the limiting slot 83. Apply a downward pressing force to the guide plate 88 so that the spring 87 is in a compressed state. Then insert the limiting plate 85 into the support frame 81 and make the guide post 86 fit against the surface of the support frame 81. Then release the force applied to the guide plate 88. Under the elastic force of the spring 87, the guide plate 88 pushes the connecting post 89 and locks it inside the guide post 86.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A novel double-rod cylinder, characterized in that, include: The cylinder (1), piston rod (2), top plate (3), stroke adjusting nut (4), buffer (5) and limiting assembly (8); the piston rod (2) is located at both ends inside the cylinder (1), the top plate (3) is fixed on the surfaces on both sides of the piston rod (2), the stroke adjusting nut (4) is threaded into the inside of the top plate (3), the buffer (5) is located inside the stroke adjusting nut (4), and the limiting assembly (8) is located at one corner of the top of the cylinder (1); The limiting component (8) includes a support frame (81), a guide groove (82), a limiting groove (83), and a limiting plate (85). The support frame (81) is fixed to one corner of the upper surface of the cylinder (1). The guide groove (82) and the limiting groove (83) are opened inside the end away from the cylinder (1). The limiting groove (83) is located at the end of the guide groove (82) away from the cylinder (1). The guide groove (82) is opened horizontally inside the support frame (81) and the guide groove (82) is opened through the inside of the support frame (81). The limiting groove (83) is opened vertically inside the support frame (81) and the limiting groove (83) is opened only through the top of the support frame (81). The limiting plate (85) is connected through the inside of the top of the support frame (81).

2. A novel double-rod cylinder according to claim 1, characterized in that, The support frame (81) has a movable groove (84) at the bottom near the cylinder (1), and a spring (87) is fixed inside the movable groove (84).

3. A novel double-rod cylinder according to claim 1, characterized in that, The limiting plate (85) has a guide post (86) fixed on the surface near the cylinder (1), and the top of the spring (87) has a guide plate (88) fixed on it.

4. A novel double-rod cylinder according to claim 3, characterized in that, A connecting post (89) is fixed to the top surface of the guide plate (88), and the connecting post (89) is inserted inside the guide post (86).

5. A novel double-rod cylinder according to claim 1, characterized in that, The buffer (5) includes a silicone pad (51), a mounting hole (52) and a screw (53); the silicone pad (51) is attached to the surface of the stroke adjusting nut (4), the mounting hole (52) is opened inside the silicone pad (51), and the cross-section of the mounting hole (52) is convex; the screw (53) is threaded into the silicone pad (51) and the inside of the stroke adjusting nut (4), and the screw (53) is completely retracted inside the mounting hole (52).

6. A novel double-rod cylinder according to claim 5, characterized in that, The screw (53) has a screw hole (54) inside, and the screw hole (54) is hexagonal.

7. A novel double-rod cylinder according to claim 1, characterized in that, The cylinder body (1) has a mounting groove (6) at the top of one end near the support frame (81). A magnetic switch (7) is snapped into the inside of the mounting groove (6), and the power line of the magnetic switch (7) is located inside the guide groove (82) and the limiting groove (83).