A new piston rod

Abstract

The utility model discloses a novel piston rod, and the device includes: including: cylinder and stem, the stem is inserted into the cylinder from the one end of cylinder, be equipped with two articulated seats on the cylinder inner wall, two articulated seat all articulate have first connecting rod, first connecting rod one end articulate have second connecting rod, second connecting rod one end articulate have articulated block, the articulated block is fixed on the stem, be equipped with two guide cylinders in the cylinder, two guide cylinder all are equipped with spring, the spring is fixedly connected with the middle end of second connecting rod. The utility model has the advantages that: the utility model is through setting articulated seat on the cylinder inner wall, and connect first connecting rod, second connecting rod and articulated block fixed on the stem in proper order, formed a set of stable connecting rod mechanism. The mechanism can accurately guide the movement track of stem, reduces the transverse deviation and the shaking of stem in the movement process, makes the stem movement more stable, accurate, greatly improved the motion stability of piston rod whole.

Description

Technical Field

[0001] This utility model belongs to the field of piston rod technology, and specifically relates to a novel piston rod. Background Technology

[0002] The piston rod is the connecting component that supports the piston in performing work. It is mostly used in the moving parts of hydraulic cylinders and pneumatic cylinders, and is a moving component with frequent movement and high technical requirements. Taking a hydraulic cylinder as an example, it consists of several parts: cylinder barrel, piston rod (cylinder rod), piston, and end cap. The quality of its machining directly affects the lifespan and reliability of the entire product.

[0003] In the existing piston rod structure, the stability and cushioning effect of the piston rod during its movement within the cylinder are poor. There is a lack of effective structure to ensure the smoothness of the rod's movement and to provide good cushioning performance. This may lead to problems such as vibration and impact during the operation of the piston rod, affecting the overall performance and service life of the equipment.

[0004] Therefore, there is an urgent need to provide a new type of piston rod to solve the problems mentioned in the background art. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a novel piston rod to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a novel piston rod, comprising: a cylinder body and a rod body, wherein the rod body is inserted into the cylinder body from one end of the cylinder body, two hinge seats are provided on the inner wall of the cylinder body, and a first connecting rod is hinged to each of the two hinge seats. A second connecting rod is hinged to one end of the first connecting rod, and a hinge block is hinged to one end of the second connecting rod. The hinge block is fixed to the rod body. Two guide cylinders are provided inside the cylinder body, and a spring is provided inside each of the two guide cylinders. The spring is fixedly connected to the middle end of the second connecting rod.

[0007] As further explained, one end of the rod is provided with a waist-shaped adjustment hole, and the other end of the rod is provided with a piston.

[0008] As further explained, the cylinder body is provided with a sleeve, the piston is disposed inside the sleeve, and a first sealing ring is provided at the contact point between the sleeve and the rod body.

[0009] As further explained, the upper end of the cylinder is provided with an abutment block, the rod passes through the abutment block and enters the interior of the cylinder, and a second sealing ring is provided inside the abutment block.

[0010] As a further explanation, the inner wall of the cylinder is provided with a vacuum layer.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model forms a stable linkage mechanism by setting a hinge seat on the inner wall of the cylinder and sequentially connecting the first connecting rod, the second connecting rod, and the hinge block fixed on the rod body. This mechanism can accurately guide the movement trajectory of the rod body, effectively reduce the lateral offset and sway of the rod body during movement, make the rod body movement more stable and precise, and greatly improve the overall movement stability of the piston rod.

[0012] 2. This utility model features a guide cylinder with a spring inside the cylinder body, and the spring is connected to the middle end of the second connecting rod. When the rod is subjected to external impact, the spring can effectively buffer and absorb the impact force through the transmission of the second and first connecting rods, thereby reducing the impact force borne by the rod body, lowering the risk of piston rod damage due to impact, and extending the service life of the piston rod.

[0013] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0014] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the front of this utility model.

[0017] In the picture: 1. Cylinder block, 2. Rod body, 3. Abutment block, 4. Waist-shaped adjustment hole, 5. Piston, 6. Sleeve, 7. Hinge seat, 8. First connecting rod, 9. Second connecting rod, 10. Hinge block, 11. Guide cylinder, 12. Spring, 13. First sealing ring, 14. Second sealing ring, 15. Vacuum layer. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions 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 protection scope of this utility model.

[0019] Reference Figure 1-2 A novel piston rod includes a cylinder body 1 and a rod body 2. The rod body 2 is inserted into the cylinder body 1 from one end. Two hinge seats 7 are provided on the inner wall of the cylinder body 1. A first connecting rod 8 is hinged to each of the two hinge seats 7. A second connecting rod 9 is hinged to one end of the first connecting rod 8. A hinge block 10 is hinged to one end of the second connecting rod 9. The hinge block 10 is fixed to the rod body 2. The two hinge seats 7 on the inner wall of the cylinder body 1 are fixed fulcrums. When the rod body 2 is subjected to external force to extend or retract, it will drive the hinge block 10 to move synchronously, thereby driving the second connecting rod 9 to rotate around the first connecting rod 8 and the first connecting rod 8 to rotate around the hinge seat 7. Through a symmetrical multi-stage structure, the linear motion of the rod body is converted into the smooth rotation of the connecting rod, dispersing the radial force. Two guide cylinders 11 are provided inside the cylinder body 1. A spring 12 is provided inside each of the two guide cylinders 11. The spring 12 is fixedly connected to the middle end of the second connecting rod 9. Two guide cylinders 11 provide dedicated constraint space for the spring 12. One end of the spring 12 is fixed to the guide cylinder 11, and the other end is connected to the middle of the second connecting rod 9. When the rod 2 is pulled up, the second connecting rod 9 rotates and stretches the spring 12, which generates a reverse pulling force. When the external force is removed, the spring 12 contracts, causing the second connecting rod 9 to reset, thereby pulling the rod 2 to automatically retract. The guide cylinders 11 can strictly limit the lateral swing of the spring 12, allowing it to extend and retract only axially. The linkage mechanism in this invention can accurately guide the movement trajectory of the rod 2, and the spring 12 can effectively buffer and absorb the impact of external forces on the rod 2. This effectively reduces the lateral offset and sway of the rod 2 during movement, making the movement of the rod 2 more stable and precise, and improving the overall movement stability of the piston rod.

[0020] One end of the rod 2 is provided with a waist-shaped adjustment hole 4, and the other end of the rod 2 is provided with a piston 5. The waist-shaped adjustment hole 4 provides space for fine adjustment of the installation position, reduces the alignment accuracy requirements between the rod 2 and the external connecting parts, and makes the installation more convenient and more tolerant of errors.

[0021] The cylinder body 1 has a sleeve 6 inside, and the piston 5 is located inside the sleeve 6. A first sealing ring 13 is provided at the contact point between the sleeve 6 and the rod body 2. The sleeve 6 provides precise guidance for the piston 5 and together with the first sealing ring 13, it forms a reliable main sealing system, effectively preventing leakage of the internal working medium (such as hydraulic oil).

[0022] A stop block 3 is provided at the upper end of the cylinder body 1. The rod 2 passes through the stop block 3 and enters the interior of the cylinder body 1. A second sealing ring 14 is provided inside the stop block 3. The main function of the second sealing ring 14 is to prevent external dust, moisture and other contaminants from entering the interior of the cylinder body 1, and at the same time to help prevent the leakage of internal media. The stop block 3 acts as a mechanical hard stop, which can prevent the rod 2 from retracting excessively during reset, protecting the internal mechanism from impact damage.

[0023] The inner wall of cylinder 1 is provided with a vacuum layer 15. The vacuum layer 15 can effectively block and absorb the mechanical noise generated when the internal connecting rod and spring 12 move, creating a quieter working environment.

[0024] All the devices selected in this application (parts whose specific structures are not specified) are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0025] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a novel logical function division of piston rods, and other division methods may be used in actual implementation. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0027] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A novel piston rod, characterized in that, include: The cylinder (1) and the rod (2) are inserted into the cylinder (1) from one end. The cylinder (1) has two hinge seats (7) on its inner wall. A first connecting rod (8) is hinged to each of the two hinge seats (7). A second connecting rod (9) is hinged to one end of the first connecting rod (8). A hinge block (10) is hinged to one end of the second connecting rod (9). The hinge block (10) is fixed to the rod (2). The cylinder (1) has two guide cylinders (11) inside. A spring (12) is provided in each of the two guide cylinders (11). The spring (12) is fixedly connected to the middle end of the second connecting rod (9).

2. The novel piston rod as described in claim 1, characterized in that, One end of the rod (2) is provided with a waist-shaped adjustment hole (4), and the other end of the rod (2) is provided with a piston (5).

3. A novel piston rod as described in claim 2, characterized in that, The cylinder (1) is provided with a sleeve (6) inside, the piston (5) is provided inside the sleeve (6), and a first sealing ring (13) is provided at the contact point between the sleeve (6) and the rod (2).

4. A novel piston rod as described in claim 3, characterized in that, The cylinder (1) is provided with an abutment block (3) at the upper end. The rod (2) passes through the abutment block (3) and enters the cylinder (1). The abutment block (3) is provided with a second sealing ring (14).

5. A novel piston rod as described in claim 1, characterized in that, The inner wall of the cylinder (1) is provided with a vacuum layer (15).

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