An integrated cylinder telescopic rod assembly

Abstract

The utility model relates to an integrated cylinder telescopic rod assembly, including cylinder body, the cylinder body upper end center front and back side all is equipped with adjusting hole, the cylinder body, the cylinder body front end center is equipped with end cover, the cylinder body inside is equipped with cylinder barrel, cylinder barrel inner wall left and right sides all are equipped with guide groove, the cylinder barrel inside swing joint telescopic rod, the telescopic rod rear end thread connection piston, the telescopic rod rear end left and right sides are equipped with guide block, through setting up guide groove in cylinder barrel inner wall left and right sides, the guide block of telescopic rod rear end left and right sides, the convex part of guide block all embeds in guide groove, makes telescopic rod only along the guide groove prescribed direction does linear motion, improves the stability when the cylinder runs.

Description

Technical Field

[0001] This utility model relates to the field of cylinder technology, and in particular to an integrated cylinder telescopic rod assembly. Background Technology

[0002] One type of cylinder is the integrated cylinder. In this type of cylinder, the cylinder barrel and the rear end cover (non-piston rod side) are integrally formed by casting or CNC machining, without bolts or retaining rings. This eliminates the seams of traditional split structures and is called an integrated cylinder. It has an internal telescopic rod (piston rod) that reciprocates through an air source connected to an adjustment hole. Integrated cylinders drive the industry towards multi-functional integration. The overall structure has a stronger ability to withstand lateral loads, reduces axial space occupation, optimizes equipment layout, eliminates the risk of bolt loosening, and ensures uniform wear of the sealing surface.

[0003] Patent application number CN201721841741.8 is a Chinese utility model patent, disclosing an integrated cylinder, including: a front cover, a rear cover, a cylinder barrel, a piston rod, and a piston. The front cover, cylinder barrel, and rear cover are connected sequentially. The piston rod passes through the front cover and is partially disposed inside the cylinder barrel. The piston is disposed inside the cylinder barrel and connected to the piston rod. It also includes front and rear air pipes, two riveted steel balls, a front vent hole, and a rear vent hole. The front and rear air pipes are axial through holes formed in the cylinder barrel wall, and the cylinder barrel wall at the location of the front and rear air pipes protrudes radially from the cylinder barrel. The two riveted steel balls are respectively... The openings at both ends of the front and rear air pipes are riveted together. The front and rear vent holes are respectively located inside the two riveted steel balls. These holes are through holes in the cylinder wall. The front and rear air pipes and the cylinder front chamber are located on either side of the front vent hole. This invention features an integrated structure of the front and rear air pipes and cylinder body, ensuring reliable airflow. It has a self-locking function, strong support, and stable performance. However, this cylinder has the following problems: firstly, it cannot enhance the stability of the telescopic rod during movement; secondly, it cannot provide precise guidance for the linear movement of the telescopic rod. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of the existing technology. This cylinder improves the stability of the cylinder by setting guide grooves on the left and right sides of the inner wall of the cylinder barrel, and the guide blocks on the left and right sides of the rear end of the telescopic rod. The protrusions of the guide blocks are embedded in the guide grooves, so that the telescopic rod can only move in a straight line along the direction specified by the guide grooves. This solves the technical problems that the cylinder cannot enhance the stability of the telescopic rod during movement and cannot provide precise guidance for the straight line movement of the telescopic rod.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An integrated cylinder telescopic rod assembly includes a cylinder body with adjustment holes on both the front and rear sides of the upper center of the cylinder body. The cylinder body has an end cap at the center of the front end. A cylinder barrel is provided inside the cylinder body, and guide grooves are provided on both the left and right sides of the inner wall of the cylinder barrel. A telescopic rod is movably connected inside the cylinder barrel. A piston is threaded to the rear end of the telescopic rod, and guide blocks are provided on the left and right sides of the rear end of the telescopic rod.

[0007] As a preferred embodiment, the guide block is located at the front end of the connection between the telescopic rod and the piston, and the rear end of the guide block is in contact with the front side of the piston.

[0008] As a preferred embodiment, a piston sealing ring is provided at the center of the piston outer ring, and protrusions are provided on the left and right sides of the piston sealing ring outer ring, the protrusions being integrally formed with the piston sealing ring.

[0009] As a preferred embodiment, the end cap has a sealing ring at its outer ring center, a through hole at its center, an oil-free bushing on the inner wall of the through hole, and the inner wall of the oil-free bushing is movably connected to the telescopic rod.

[0010] As a preferred embodiment, both the left and right guide blocks include outward protrusions.

[0011] As another preferred embodiment, both the protrusion and the raised block are embedded in the guide groove.

[0012] The beneficial effects of this utility model are:

[0013] (1) In this utility model, by setting guide grooves on the left and right sides of the inner wall of the cylinder, and embedding the protrusions of the guide blocks on the left and right sides of the rear end of the telescopic rod into the guide groove, when the telescopic rod is driven by an external air source to make linear reciprocating motion in the cylinder, the guide blocks slide along the guide groove, so that the telescopic rod can only make linear motion in the direction specified by the guide groove, thereby improving the stability of the cylinder during operation.

[0014] (2) In this utility model, the piston sealing ring and the raised blocks on the left and right sides of the outer ring are integrally formed, and the raised blocks are embedded in the guide groove, which ensures the sealing performance inside the cylinder. When the telescopic rod is driven by an external air source to make linear reciprocating motion in the cylinder, the sealing performance of the piston is crucial. The raised blocks of the piston sealing ring embedded in the guide groove not only increase the contact area between the piston and the inner wall of the cylinder, but also ensure the sealing performance inside the cylinder when the telescopic rod makes linear reciprocating motion.

[0015] (3) In this utility model, the structure of the protrusion of the piston sealing ring embedded in the guide groove ensures the sealing inside the cylinder while assisting the guide block to perform linear guiding motion when the telescopic rod reciprocates, which further improves the stability of the cylinder during operation.

[0016] In summary, this cylinder has the advantages of improving the stability of cylinder operation and ensuring the sealing of the cylinder interior, making it particularly suitable for the field of cylinder technology. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the overall explosion of the device in this utility model.

[0020] Figure 3 This is a schematic diagram of the middle end cap structure of this utility model.

[0021] Figure 4 This is an enlarged schematic diagram of the protrusion and protrusion block structure in this utility model. Detailed Implementation

[0022] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0023] Example 1

[0024] like Figures 1 to 4As shown, this utility model provides an integrated cylinder telescopic rod assembly, including a cylinder body 1. The cylinder body 1 has adjustment holes 12 on both the front and rear sides of its upper center. An air source is connected through the adjustment holes 12 of the cylinder body 1. The adjustment holes 12 are used not only to fix the air source pipeline but also as pressure adjustment points. The cylinder body 1 has an end cap 2 at its front center, which is connected to the front center of the cylinder body 1 by a snap ring. Inside the cylinder body 1 is a cylinder barrel 3. The inner wall of the cylinder barrel 3 has guide grooves 31 on both the left and right sides. The guide grooves 31 are straight grooves, with a groove width slightly larger than the protrusion 421 of the guide block 42, but tightly fitting with the piston sealing ring 411. To ensure smooth sliding of the guide block 42 within the groove without deviation, the system also ensures the sealing of the cylinder 3 when the telescopic rod 4 slides inside the cylinder 3. The telescopic rod 4, also known as the piston rod, is movably connected inside the cylinder 3. The front end of the telescopic rod 4 extends out to the end cap 2. The frontmost end of the telescopic rod 4 is used to connect to an external load. The rear end of the telescopic rod 4 is threadedly connected to the piston 41. When the air source is activated, air pressure acts on the rear side of the piston 41, pushing the entire telescopic rod 4 forward within the cylinder 3. When air pressure acts on the front side of the piston 41, the air source at the front pushes the telescopic rod 4 backward. This process repeats. Guide blocks 42 are provided on the left and right sides of the rear end of the telescopic rod 4.

[0025] Furthermore, the guide block 42 is located at the front end of the connection between the telescopic rod 4 and the piston 41. The rear end of the guide block 42 is in contact with the front side of the piston 41. The contact surface between the guide block 42 and the telescopic rod 4 is rigidly connected to prevent the guide block 42 from falling off during reciprocating linear motion. The position of the guide block 42 ensures that it remains in an engaged state with the guide groove 31 during the movement of the telescopic rod 4, thereby achieving continuity and stability of motion guidance.

[0026] Furthermore, a piston sealing ring 411 is provided at the center of the outer ring of the piston 41, and protrusions 412 are provided on the left and right sides of the outer ring of the piston sealing ring 411. The protrusions 412 and the piston sealing ring 411 are integrally formed. The protrusions 412 are protruding structures extending outward from the left and right sides of the outer ring of the sealing ring 411. They are integrally formed with the piston sealing ring 411 and manufactured by mold forming process. The structure is stable and has small deformation. The design of the protrusions 412 not only enhances the contact area between the piston sealing ring 411 and the inner wall of the cylinder 3 and improves the sealing effect, but also can be embedded in the guide groove 31 to play an auxiliary guiding role.

[0027] Furthermore, a sealing ring 21 is provided at the center of the outer ring of the end cap 2. The sealing ring 21 is an O-ring and is installed in the groove of the outer ring of the end cap 2 to prevent gas inside the cylinder from leaking between the end cap 2 and the cylinder body 1. A through hole 22 is provided at the center of the end cap 2, through which the telescopic rod 4 passes. An oil-free bushing 221 is provided on the inner wall of the through hole 22. The oil-free bushing 221 forms a sliding fit with the outer wall of the telescopic rod 4 to reduce the frictional resistance of the telescopic rod 4 during movement. The inner wall of the oil-free bushing 221 is movably connected to the telescopic rod 4.

[0028] Furthermore, both the left and right guide blocks 42 include an outward protrusion 421. The contact surfaces of the guide blocks 42 and the telescopic rod 4 are rigidly connected. The size of the protrusion 421 matches the guide groove 31. When the telescopic rod 4 is driven by an external air source to make linear reciprocating motion in the cylinder 3, the protrusion 421 will slide along the guide groove 31, so that the telescopic rod 4 can only make linear motion in the fixed direction of the guide groove 31, thereby improving the stability of the cylinder during operation.

[0029] Furthermore, both the protrusion 421 and the protrusion 412 are embedded in the guide groove 31.

[0030] Working process: First, compressed gas is introduced into the cylinder 3 through the adjusting hole 12. Then, the compressed gas pushes the piston 41 to move along the inner wall of the cylinder 3. The piston 41 drives the telescopic rod 4 to move synchronously. When the telescopic rod 4 is driven by an external air source to make linear reciprocating motion in the cylinder 3, the guide block 42 slides along the guide groove 31, so that the telescopic rod 4 can only make linear motion in the direction specified by the guide groove 31, thereby improving the stability of the cylinder during operation.

[0031] Secondly, the structure of the protrusion 412 of the piston seal ring 411 embedded in the guide groove 31 not only ensures the sealing inside the cylinder, but also assists the guide block 42 in providing linear guidance for the reciprocating motion of the telescopic rod 4, further improving the stability of the cylinder during operation.

[0032] In the description of this utility model, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0033] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0034] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. An integrated cylinder telescopic rod assembly, characterized in that: The cylinder includes a cylinder body (1), which has adjustment holes (12) on both the front and rear sides of the upper center. The cylinder body (1) has an end cap (2) at the front center. The cylinder body (1) has a cylinder barrel (3) inside. The cylinder barrel (3) has guide grooves (31) on both the left and right sides of its inner wall. The cylinder barrel (3) has a telescopic rod (4) that is movably connected inside. The telescopic rod (4) has a piston (41) that is threaded to its rear end. The telescopic rod (4) has guide blocks (42) on the left and right sides of its rear end.

2. The integrated cylinder telescopic rod assembly according to claim 1, characterized in that, The guide block (42) is located at the front end of the connection between the telescopic rod (4) and the piston (41), and the rear end of the guide block (42) is in contact with the front side of the piston (41).

3. The integrated cylinder telescopic rod assembly according to claim 1, characterized in that, The piston (41) has a piston sealing ring (411) at the center of its outer ring, and protrusions (412) are provided on the left and right sides of the outer ring of the piston sealing ring (411). The protrusions (412) and the piston sealing ring (411) are integrally formed.

4. The integrated cylinder telescopic rod assembly according to claim 1, characterized in that, The end cap (2) has a sealing ring (21) at the center of its outer ring, and a through hole (22) at the center of the end cap (2). The inner wall of the through hole (22) is provided with an oil-free bushing (221), and the inner wall of the oil-free bushing (221) is movably connected to the telescopic rod (4).

5. The integrated cylinder telescopic rod assembly according to claim 1, characterized in that, The guide blocks (42) at both the left and right ends each include a protrusion (421) on the outer side.

6. The integrated cylinder telescopic rod assembly according to claim 5, characterized in that, Both the protrusion (421) and the protrusion (412) are embedded in the guide groove (31).

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