Piston rod with protective structure

Abstract

The utility model discloses a piston rod with a protective structure, which comprises a piston rod body, one end of the piston rod body is fixedly provided with a threaded connector integrally connected with the piston rod body, the other end of the piston rod body is fixedly provided with a fixing ring, and a protective sleeve ring is nested in the fixing ring. A positioning ring integrally connected with the piston rod body is fixedly arranged on the outer wall of the other end of the piston rod body, a corrugated sleeve is fixedly arranged on the side face of the positioning ring, and a connecting ring is fixedly arranged at the end of the corrugated sleeve. The corrugated sleeve is arranged on the surface of the piston rod body, the whole piston rod body is not in contact with outside air through unfolding and closing of the corrugated sleeve in the stretching and retracting process of the piston rod body, dust accumulated on the surface of the piston rod body is effectively reduced, and the piston rod body is effectively protected.

Description

Technical Field

[0001] The utility model relates to a piston rod with a protective structure, belonging to the technical field of piston rods. Background Art

[0002] The piston rod is a component used to perform movement in the cylinder, and the movement of the piston rod drives the piston to move.

[0003] After searching, according to the patent number "CN212868415U", a piston rod is disclosed, the piston rod includes a slide rod body, a slider connecting thread, a piston fixing step, a piston fixing thread and a locking nut; one end of the slide rod body is provided with the slider connecting thread, and the slider connecting thread is used to thread the slider. The utility model realizes metal hard sealing between the piston and the piston fixing step on the piston rod, thereby enhancing the sealing performance and facilitating the overall operation of the device.

[0004] The above-mentioned piston rod is improved and enhanced in sealing performance by metal hard sealing. However, the listed piston rod has no protective structure design during the extension and retraction process. Dust is easily accumulated on the surface of the piston rod during the rising process, which increases the friction between the piston rod and the piston sleeve. For this reason, we designed a piston rod with a protective structure to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a piston rod with a protective structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: it includes a piston rod body, a threaded connector is fixedly provided at one end of the piston rod body, a fixing ring is fixedly provided at the other end of the piston rod body, a protective collar is nested inside the fixing ring, a positioning ring is fixedly provided on the outer wall of the other end of the piston rod body, a corrugated sleeve is fixedly provided on the side of the positioning ring, and a connecting ring is fixedly provided at the end of the corrugated sleeve.

[0007] In the above-mentioned piston rod with a protective structure, a sponge sleeve is fixedly provided on the inner wall of the connecting ring, the interior of the sponge sleeve is immersed in lubricating oil, and the inner wall of the sponge sleeve is in contact and connected with the surface of the piston rod body.

[0008] In the above-mentioned piston rod with a protective structure, circular holes are opened on both sides of the outer wall of the protective ring, and clamping columns are nested inside the two circular holes. Extrusion springs are fixedly installed at the bottom of the two circular holes, and one end of the extrusion spring is fixedly connected to the end of the clamping column. Through holes are opened on both sides of the outer wall of the fixing ring, and the two clamping columns are interlaced and connected with the corresponding through holes.

[0009] In the above-mentioned piston rod with a protective structure, the size of the clamping column end is the same as the inner diameter of the through hole.

[0010] In the above-mentioned piston rod with a protective structure, the outer wall of the clamping column is provided with evenly distributed anti-slip grooves.

[0011] In the above-mentioned piston rod with a protective structure, the bottom end of the connecting ring is fixedly connected to the top end of the piston sleeve.

[0012] Compared with the prior art, the utility model has the following beneficial effects: by arranging a corrugated sleeve on the surface of the piston rod body, the corrugated sleeve is expanded and closed during the extension and retraction process of the piston rod body, so that the entire piston rod body is not in contact with the outside air, effectively reducing the accumulation of dust on the surface of the piston rod body, and effectively protecting the piston rod body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a piston rod with a protective structure of the utility model;

[0014] Figure 2 This is a schematic cross-sectional structure diagram of a piston rod with a protective structure according to the utility model;

[0015] Figure 3 The utility model is a schematic diagram of a nested connection structure of a protective sleeve ring and a fixing ring of a piston rod with a protective structure.

[0016] In the figure: 1. Piston rod body; 2. Threaded connector; 3. Positioning ring; 4. Connecting ring; 5. Corrugated sleeve; 6. Fixing ring; 7. Protective sleeve ring; 8. Through hole; 9. Clamping column; 10. Sponge sleeve; 11. Round hole; 12. Extrusion spring. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3 , the utility model provides a technical solution of a piston rod with a protective structure:

[0019] according to Figure 1-3As shown, it includes a piston rod body 1, a threaded connector 2 is fixedly provided at one end of the piston rod body 1, a fixing ring 6 is fixedly provided at the other end of the piston rod body 1, a protective collar 7 is nested inside the fixing ring 6, a positioning ring 3 is fixedly provided on the outer wall of the other end of the piston rod body 1, a corrugated sleeve 5 is fixedly provided on the side of the positioning ring 3, and a connecting ring 4 is fixedly provided at the end of the corrugated sleeve 5.

[0020] Specifically, by arranging a corrugated sleeve 5 on the surface of the piston rod body 1, the corrugated sleeve 5 is expanded and closed during the extension and retraction process of the piston rod body 1, so that the entire piston rod body 1 is not in contact with the outside air, effectively reducing dust accumulation on the surface of the piston rod body 1, and effectively protecting the piston rod body 1.

[0021] according to Figure 1 , Figure 2 and Figure 3 As shown, a sponge sleeve 10 is fixedly provided on the inner wall of the connecting ring 4 , the interior of the sponge sleeve 10 is immersed in lubricating oil, and the inner wall of the sponge sleeve 10 is in contact and connected with the surface of the piston rod body 1 .

[0022] Circular holes 11 are provided on both sides of the outer wall of the protective collar 7, and clamping columns 9 are nested inside the two circular holes 11. Extrusion springs 12 are fixedly installed at the bottom of the two circular holes 11, and one end of the extrusion spring 12 is fixedly connected to the end of the clamping column 9. Through holes 8 are provided on both sides of the outer wall of the fixing ring 6, and the two clamping columns 9 are connected with the corresponding through holes 8 through the insertion.

[0023] Specifically, the clamping column 9 is squeezed and inserted into the through hole 8 by the squeezing spring 12 , so that the protective collar 7 is fixed inside the fixing ring 6 , and the fixing ring 6 is effectively protected by the protective collar 7 .

[0024] The size of the end of the clamping column 9 is the same as the inner diameter of the through hole 8. Specifically, the gap between the clamping column 9 and the through hole 8 is reduced by making the size of the end of the clamping column 9 the same as the inner diameter of the through hole 8.

[0025] The outer wall of the clamping column 9 is provided with uniformly distributed anti-skid patterns. Specifically, the anti-skid patterns provided on the surface of the clamping column 9 increase the friction between the clamping column 9 and the inner wall of the through hole 8.

[0026] The bottom end of the connecting ring 4 is fixedly connected to the top end of the piston sleeve. Specifically, by fixing the connecting ring 4 to the top end of the piston sleeve, the bellows sleeve 5 can be driven to expand and close during the expansion and contraction of the piston rod body 1.

[0027] Working principle: the utility model provides a piston rod with a protective structure. When the piston rod is used, the piston rod body 1 is nested through the expansion and contraction of the bellows sleeve 5 during the expansion and contraction process, so that the entire piston rod is not in contact with the outside air, effectively reducing the dust accumulation on the surface of the piston rod body 1, and effectively protecting the piston rod body 1. During the expansion and contraction process of the piston rod body 1, the sponge sleeve 10 provided on the connecting ring 4 can lubricate the surface of the piston rod body 1, further reducing the wear of the piston rod body 1. A protective collar 7 is provided inside the fixing ring 6 at the top of the piston rod body 1, and the protective collar 7 is fixed to the fixing ring 6 through a clamping column 9 and a through hole 8. The fixing ring 6 is protected by the protective collar 7. When the protective collar 7 is damaged, the separation of the clamping column 9 and the through hole 8 facilitates the disassembly and replacement of the protective collar 7, effectively improving the service life of the piston rod.

[0028] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A piston rod with a protective structure, comprising a piston rod body (1), characterized in that: A threaded connector (2) is fixedly provided at one end of the piston rod body (1), a fixing ring (6) is fixedly provided at the other end of the piston rod body (1), a protective collar (7) is nested inside the fixing ring (6), a positioning ring (3) is fixedly provided on the outer wall of the other end of the piston rod body (1), a corrugated sleeve (5) is fixedly provided on the side of the positioning ring (3), and a connecting ring (4) is fixedly provided at the end of the corrugated sleeve (5).

2. The piston rod with a protective structure according to claim 1, characterized in that: A sponge sleeve (10) is fixedly provided on the inner wall of the connecting ring (4), the interior of the sponge sleeve (10) is immersed in lubricating oil, and the inner wall of the sponge sleeve (10) is in contact and connection with the surface of the piston rod body (1).

3. The piston rod with a protective structure according to claim 1, characterized in that: Circular holes (11) are provided on both sides of the outer wall of the protective collar (7), and clamping columns (9) are nested inside the two circular holes (11). Extrusion springs (12) are fixedly installed at the bottoms of the two circular holes (11), and one end of the extrusion spring (12) is fixedly connected to the end of the clamping column (9). Through holes (8) are provided on both sides of the outer wall of the fixing ring (6), and the two clamping columns (9) are inserted and connected with the corresponding through holes (8).

4. The piston rod with a protective structure according to claim 3, characterized in that: The size of the end of the clamping column (9) is the same as the inner diameter of the through hole (8).

5. The piston rod with a protective structure according to claim 4, characterized in that: The outer wall of the clamping column (9) is provided with evenly distributed anti-slip grooves.

6. The piston rod with a protective structure according to claim 1, characterized in that: The bottom end of the connecting ring (4) is fixedly connected to the top end of the piston sleeve.

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