Cylinder device with anti-lateral load mechanism

Abstract

The utility model discloses a kind of cylinder device with anti-lateral load mechanism, including cylinder body, scalable piston rod is connected on cylinder body, further including locating seat body, locating seat body includes installation part and locating part, installation slot is equipped between locating part, cylinder body is located in installation slot and is connected on installation part, at least two adjacent end faces of locating seat body are all set up cylinder body mounting hole, opening is equipped on installation part, piston rod is movably connected in opening, the end of piston rod is connected with stroke plate, locating part is set up stroke hole, the position of stroke plate opposite stroke hole is connected with guide rod, guide rod is connected in stroke hole, when piston rod is in maximum stroke state, guide rod still be connected in stroke hole. The utility model adopts with anti-lateral load mechanism, make internal seal work in ideal state, effectively prevent leakage, maintain the stability of cylinder output, to significantly improve the service life of cylinder, reduce maintenance replacement cost.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic component technology, specifically to a cylinder device with an anti-lateral load mechanism. Background Technology

[0002] As a typical fluid transmission actuator, the cylinder has been widely used in many fields such as industrial automation, mechanical equipment, and packaging logistics due to its significant advantages such as simple structure, large output force, fast response speed, convenient maintenance, and low cost. Its basic working principle is to use compressed air to generate a pressure difference at both ends of the piston, thereby driving the piston rod to perform reciprocating linear motion to realize a series of actions such as pushing, pulling, clamping, and lifting.

[0003] Existing cylinders suffer from poor lateral load resistance in practical applications. When the piston rod is subjected to lateral force, huge eccentric torques and local contact stresses are generated between the piston rod and the guide sleeve, and between the piston and the cylinder barrel. This rapidly accelerates the unilateral wear of the guide sleeve and piston seals, causing a decrease in cylinder output or even complete loss of function. This significantly shortens the overall service life of the cylinder, increases equipment failure rate and maintenance costs, and affects the stability and reliability of the production line where the cylinder is located. Furthermore, the installation flexibility of cylinders on the market is not high at present, requiring additional tooling plates for installation and fixation, which increases the inconvenience of cylinder application.

[0004] In view of this, there is an urgent need to design a cylinder that can solve the technical defects of the cylinders currently on the market. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a cylinder device with an anti-lateral load mechanism, comprising a cylinder body, a retractable piston rod connected to the cylinder body, and a positioning seat. The positioning seat includes a mounting portion and positioning portions located on both sides of the mounting portion, with a mounting slot between the positioning portions. The cylinder body is located within the mounting slot and connected to the mounting portion. At least two adjacent end faces of the positioning seat have cylinder mounting holes. The mounting portion has an opening, and the piston rod is movably connected within the opening. A stroke plate is connected to the end of the piston rod. A stroke hole is formed on the positioning portion. A guide rod is connected to the stroke plate opposite the stroke hole, and the guide rod is connected within the stroke hole. When the piston rod is at its maximum stroke, the guide rod remains connected within the stroke hole.

[0006] In one possible implementation, the cylinder body has a positioning hole on the side near the mounting portion, the mounting portion has a through hole opposite the positioning hole, a fastener is connected in the through hole, and the end of the fastener is connected in the positioning hole.

[0007] In one possible implementation, when the piston rod is in its minimum stroke state, the guide rod does not extend beyond the end face of the cylinder body on the side away from the positioning seat.

[0008] In one possible implementation, the two guide rods are arranged parallel to each other.

[0009] In one possible implementation, the guide rod and the piston rod are in the same plane.

[0010] In one possible implementation, the end of the piston rod is connected to a mating part, the mating part including a limiting part and a connecting part, a limiting slot is formed on the stroke plate, a transition slot is provided on the side of the limiting slot near the piston rod, the limiting part is connected in the limiting slot, and the connecting part passes through the transition slot and is connected to the end of the piston rod.

[0011] In one possible implementation, the guide rod is welded to the travel plate.

[0012] In one possible implementation, the cylinder mounting hole is located on the adjacent side of the positioning portion.

[0013] In one possible implementation, the positioning base is integrally machined.

[0014] Compared with the prior art, the technical solution provided by this utility model has the following advantages: This technical solution integrates an external guiding mechanism consisting of a positioning seat and a guide rod into the cylinder body. When a lateral load is applied to the piston rod end, the force is transmitted to the guide rod through the stroke plate. The guide rod and the stroke hole on the positioning part then bear the lateral load. This eliminates the eccentric torque and local contact stress on the piston rod, guide sleeve, and internal piston seal of the cylinder body, fundamentally solving the problem of unilateral wear between the piston rod and guide sleeve, and between the piston and cylinder. The internal seals operate under ideal conditions, effectively preventing leakage and maintaining stable cylinder output, thereby significantly improving cylinder lifespan and reducing maintenance and replacement costs. Simultaneously, at least two adjacent end faces of the positioning seat have cylinder mounting holes, allowing the entire cylinder assembly to be easily mounted to the equipment frame at different angles using multiple mounting surfaces on the positioning seat. This eliminates the cumbersome steps of designing and machining additional tooling plates, greatly simplifying the equipment integration process and saving installation space and time.

[0015] In this technical solution, when the piston rod is at its maximum stroke, the guide rod remains connected in the stroke hole, ensuring that the cantilever effect of the traditional cylinder is strongest throughout the entire piston rod extension process, especially at the end of the stroke. At this time, the guide mechanism remains effective, avoiding jamming or damage to the mechanism due to insufficient support. Attached Figure Description

[0016] Figure 1 This is a perspective view of the cylinder device according to an embodiment of the present utility model.

[0017] Figure 2 This is a bottom view of the cylinder device according to an embodiment of the present invention.

[0018] Figure 3 for Figure 2 Sectional view of AA.

[0019] Figure 4 This is an exploded view of the cylinder device according to an embodiment of the present invention.

[0020] Figure 5 This is an exploded view of the travel plate and mating parts in an embodiment of this utility model.

[0021] Figure 6 This is a perspective view of the cylinder device in its fully retracted state according to an embodiment of the present invention.

[0022] Figure 7 This is a perspective view of the cylinder device in the fully extended state according to an embodiment of the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. The accompanying drawings are for illustrative purposes only, representing schematic diagrams only, not actual object drawings, and should not be construed as limiting this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0024] Combined with appendix Figure 1 To be continued Figure 7This utility model provides a cylinder device with an anti-lateral load mechanism, comprising a cylinder body 1, a retractable piston rod 2 connected to the cylinder body 1, and a positioning seat 3. The positioning seat 3 includes a mounting part 31 and positioning parts 32 located on both sides of the mounting part 31, with a mounting slot 33 between the positioning parts 32. The cylinder body 1 is located in the mounting slot 33 and connected to the mounting part 31. At least two adjacent end faces of the positioning seat 3 are provided with cylinder mounting holes 34. The mounting part 31 is provided with an opening 35, and the piston rod 2 is movably connected to the opening 35. A stroke plate 4 is connected to the end of the piston rod 2. A stroke hole 36 is provided on the positioning part 32. A guide rod 5 is connected to the stroke plate 4 opposite to the stroke hole 36 and is connected to the stroke hole 36. When the piston rod 2 is in its maximum stroke state, the guide rod 5 is still connected to the stroke hole 36.

[0025] In this embodiment, the opening 35 is used for the piston rod 2 to extend from the positioning seat 3 to push the stroke plate 4 to move.

[0026] In this embodiment, the cylinder mounting hole 34 is used for mounting and fixing the positioning seat 3 on the equipment frame. The positioning seat 3 has cylinder mounting holes 34 on at least two adjacent end faces. The multiple mounting surfaces on the positioning seat 3 can be used to easily mount the entire cylinder assembly to the equipment frame at different angles, eliminating the tedious steps of designing and processing additional tooling plates, greatly simplifying the equipment integration process, and saving installation space and time.

[0027] In this embodiment, when the piston rod 2 is in its maximum stroke state, the guide rod 5 is still connected in the stroke hole 36, ensuring that the cantilever effect of the conventional cylinder is strongest throughout the entire process of the piston rod 2 extending, especially at the end of the stroke, and that the guide mechanism is always effective, thus avoiding jamming or damage to the mechanism due to insufficient support.

[0028] In this embodiment, the cylinder device with anti-lateral load mechanism integrates an external guiding mechanism consisting of a positioning seat 3 and a guide rod 5 on its cylinder body 1. When a lateral load is applied to the end of the piston rod 2, the force is transmitted to the guide rod 5 through the stroke plate 4, and then the lateral load is borne by the guide rod 5 and the stroke hole 36 on the positioning part 32. This makes the piston rod 2, guide sleeve and internal piston seal of the cylinder body 1 almost no longer bear eccentric torque and local contact stress, fundamentally solving the problem of unilateral wear between the piston rod 2 and the guide sleeve, and between the piston and the cylinder. The internal seal works under ideal conditions, effectively preventing leakage, maintaining the stability of the cylinder output, thereby significantly improving the service life of the cylinder and reducing maintenance and replacement costs.

[0029] In this embodiment, as shown in the appendix Figure 4 As shown, the cylinder body 1 has a positioning hole 11 on the side near the mounting part, and the mounting part 31 has a through hole 37 opposite to the positioning hole 11. A fastener 6 is connected in the through hole 37, and the end of the fastener 6 is connected in the positioning hole 11. The fastener 6 passes through the through hole 37 and is connected to the positioning hole 11, so as to realize the quick and stable fixed connection of the cylinder body 1 on the positioning seat 3.

[0030] In this embodiment, as shown in the appendix Figure 6 As shown, when the piston rod 2 is in the minimum stroke state, the guide rod 5 does not exceed the end face of the cylinder body 1 away from the positioning seat 3, so that the limit position of the guide rod 5 on the positioning seat 3 will not affect other mechanisms on other equipment, which has good practicality.

[0031] In this embodiment, as shown in the appendix Figure 5 As shown, the two guide rods 5 are arranged parallel to each other.

[0032] In this embodiment, as shown in the appendix Figure 3 and attached Figure 5 As shown, the two guide rods 5 and the piston rod 2 are all on the same plane, which further improves the uniformity of the force on the guide rods 5 and the positioning seat 3 when the cylinder is actuated.

[0033] In this embodiment, as shown in the appendix Figure 3 and attached Figure 5 As shown, the end of the piston rod 2 is connected to a mating part 7. The mating part 7 includes a limiting part 71 and a connecting part 72. A limiting slot 41 is formed on the stroke plate 4. A transition slot 42 is provided on the side of the limiting slot 41 near the piston rod 2. The limiting part 71 is connected in the limiting slot 41. The connecting part 72 passes through the transition slot 41 and is connected to the end of the piston rod 2.

[0034] In this embodiment, as shown in the appendix Figure 5 As shown, the guide rod 5 is welded to the travel plate 4.

[0035] In this embodiment, as shown in the appendix Figure 4 As shown, the cylinder mounting hole 34 is located on the adjacent side of the positioning part 32, so that the cylinder device can be installed at different angles.

[0036] In this embodiment, the positioning seat 3 is integrally machined by processes such as turning, milling, and drilling, which improves the fitting accuracy between the positioning seat 3 and the guide rod 5, making the cylinder movement smoother.

[0037] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model, or direct / indirect applications in other related technical fields, should be included within the scope of protection of the claims of this utility model.

Claims

1. A cylinder device with an anti-lateral load mechanism, comprising a cylinder body, wherein a retractable piston rod is connected to the cylinder body, characterized in that, It also includes a positioning seat, which includes a mounting part and positioning parts located on both sides of the mounting part. A mounting slot is provided between the positioning parts. The cylinder body is located in the mounting slot and connected to the mounting part. At least two adjacent end faces of the positioning seat are provided with cylinder mounting holes. An opening is provided on the mounting part. The piston rod is movably connected in the opening. A stroke plate is connected to the end of the piston rod. A stroke hole is provided on the positioning part. A guide rod is connected to the stroke plate at the position opposite to the stroke hole. The guide rod is connected in the stroke hole. When the piston rod is in the maximum stroke state, the guide rod is still connected in the stroke hole.

2. A cylinder device with an anti-lateral load mechanism according to claim 1, characterized in that, The cylinder body has a positioning hole on the side near the mounting part, and the mounting part has a through hole at the position opposite to the positioning hole. A fastener is connected in the through hole, and the end of the fastener is connected in the positioning hole.

3. A cylinder device with an anti-lateral load mechanism according to claim 1, characterized in that, When the piston rod is in its minimum stroke state, the guide rod does not extend beyond the end face of the cylinder body on the side away from the positioning seat.

4. A cylinder device with an anti-lateral load mechanism according to claim 1, characterized in that, The two guide rods are arranged parallel to each other.

5. A cylinder device with an anti-lateral load mechanism according to claim 4, characterized in that, The guide rod and the piston rod are in the same plane.

6. A cylinder device with an anti-lateral load mechanism according to any one of claims 1 to 5, characterized in that, The piston rod is connected to a mating part at its end. The mating part includes a limiting part and a connecting part. A limiting slot is formed on the stroke plate. A transition slot is provided on the side of the limiting slot near the piston rod. The limiting part is connected in the limiting slot. The connecting part passes through the transition slot and is connected to the end of the piston rod.

7. A cylinder device with an anti-lateral load mechanism according to any one of claims 1 to 5, characterized in that, The guide rod is welded to the travel plate.

8. A cylinder device with an anti-lateral load mechanism according to any one of claims 1 to 5, characterized in that, The cylinder mounting hole is located on the adjacent side of the positioning part.

9. A cylinder device with an anti-lateral load mechanism according to any one of claims 1 to 5, characterized in that, The positioning base is integrally machined.

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