Stainless steel bar with length extension function

Abstract

The stainless steel bar with the length extending function comprises a rear end device, the center of the front end of the rear end device is sleeved with a front end device in a threaded mode, the outer ring, close to the rear end device, of the front end device is rotationally sleeved with a covering device, and the covering device comprises an annular sleeve, a positioning bolt and a covering sleeve. The annular sleeve is fixedly installed at one end of the outer ring of the covering sleeve, the positioning bolts are symmetrically inserted into the other end of the outer ring of the covering sleeve in a threaded mode, the front end device comprises a first stainless steel bar, an arc groove and a threaded hole, and the threaded hole is formed in one end of the interior of the first stainless steel bar. The arc groove is formed in the outer ring, close to the threaded hole, of the first stainless steel bar, and the rear end device comprises a threaded rod, an insertion hole, a flat groove and a second stainless steel bar. Through the arrangement of the covering device, the front end device and the rear end device, the purpose of extending the length of the stainless steel bar is achieved.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel bar technology, specifically to stainless steel bars with the function of extending length. Background Technology

[0002] Stainless steel bars are a common type of stainless steel product, characterized by high strength, corrosion resistance, and high temperature resistance. They are widely used in machinery manufacturing, construction, chemical industry, aerospace, medical devices, and other fields. The production process of stainless steel bars involves multiple steps, including smelting, casting, hot rolling, cold rolling, drawing, heat treatment, and surface treatment.

[0003] For example, a high-performance stainless steel bar with Chinese patent publication number CN215215705U includes a core and a body. The core has one or more protrusions on its outer ring and one or more grooves that fit the protrusions on its inner ring. The core includes an inner base layer and an outer connecting layer. The body has a pressure-resistant layer, a heat-resistant layer and a wear-resistant layer from the inside to the outside. The outer surface of the wear-resistant layer is coated with a titanium layer.

[0004] When the stainless steel bars in the aforementioned patent are used, they can only achieve the purpose of high strength. However, the existing stainless steel bars are mostly of fixed length, making it impossible to make fine adjustments during subsequent work. Therefore, an improved device is needed to address the above problem. Utility Model Content

[0005] The purpose of this invention is to provide a stainless steel bar with an extended length function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a stainless steel bar with an extension function, comprising a rear end device, wherein a front end device is threadedly connected to the front end center of the rear end device, and a covering device is rotatably connected to the outer ring of the front end device near the rear end device. The covering device comprises an annular sleeve, a positioning bolt, and a covering sleeve. The annular sleeve is fixedly installed at one end of the outer ring of the covering sleeve, and the positioning bolt is symmetrically threaded into the other end of the outer ring of the covering sleeve.

[0007] Preferably, the front end device includes a first stainless steel bar, an arc groove, and a threaded hole. The threaded hole is formed at one end inside the first stainless steel bar, and the arc groove is formed on the outer ring of the first stainless steel bar near the threaded hole.

[0008] Preferably, the rear end device includes a threaded rod, a socket, a flat groove, and a second stainless steel rod. The threaded rod is fixedly installed at the center of one end of the second stainless steel rod. The flat groove is formed on the outer ring of the second stainless steel rod near the top and bottom ends of the threaded rod. The socket is formed at equal intervals inside the flat groove.

[0009] Preferably, the threaded hole is threaded onto the outer ring of the threaded rod, and the annular sleeve is rotatably fitted onto the outer ring of the arc groove.

[0010] Preferably, the inner top and bottom ends of the cover sleeve are flush with the surface of the flat groove.

[0011] Preferably, the cover sleeve has threaded holes at its top and bottom ends away from the annular sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In use, this device rotates by screwing the threaded rod around the threaded hole, causing the first stainless steel rod to move. Simultaneously, the annular sleeve slides onto the outer ring of the arc groove, allowing the first stainless steel rod to move and cause the covering sleeve to wrap around the outer ring of the second stainless steel rod, thus protecting the threaded rod. Furthermore, when the positioning bolt is screwed in, it can enter the interior of the insertion hole, allowing the positioning bolt to contact the interior of the second stainless steel rod, thereby preventing continuous displacement of the first stainless steel rod and completing the work of adjusting the distance between the first and second stainless steel rods. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the covering device structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the front-end device structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the back-end device structure of this utility model.

[0018] In the figure: 1-covering device, 2-front end device, 3-rear end device, 4-ring sleeve, 5-positioning bolt, 6-covering sleeve, 7-first stainless steel bar, 8-circular groove, 9-threaded hole, 10-threaded rod, 11-insertion hole, 12-flat groove, 13-second stainless steel bar. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 An embodiment of this utility model provides: a stainless steel bar with an extension function, including a rear end device 3, a front end device 2 threadedly connected to the front end center of the rear end device 3, and a cover device 1 rotatably connected to the outer ring of the front end device 2 near the rear end device 3. The cover device 1 includes an annular sleeve 4, a positioning bolt 5 and a cover sleeve 6. The annular sleeve 4 is fixedly installed at one end of the outer ring of the cover sleeve 6, and the positioning bolt 5 is symmetrically threaded into the other end of the outer ring of the cover sleeve 6.

[0021] The front end device 2 includes a first stainless steel bar 7, an arc groove 8, and a threaded hole 9. The threaded hole 9 is opened at one end inside the first stainless steel bar 7, and the arc groove 8 is opened on the outer ring of the first stainless steel bar 7 near the threaded hole 9, which can support the first stainless steel bar 7 to work.

[0022] The rear end device 3 includes a threaded rod 10, a socket 11, a flat groove 12, and a second stainless steel rod 13. The threaded rod 10 is fixedly installed at the center of one end of the second stainless steel rod 13. The flat groove 12 is opened on the outer ring of the top and bottom ends of the second stainless steel rod 13 near the threaded rod 10. The socket 11 is equally spaced inside the flat groove 12. Several sockets 11 are provided, and the gap between the sockets 11 is 1 cm, so that the displacement distance of the first stainless steel rod 7 can be adjusted precisely.

[0023] The threaded hole 9 is threaded onto the outer ring of the threaded rod 10, and the annular sleeve 4 is rotatably fitted onto the outer ring of the arc groove 8. When the first stainless steel bar 7 is displaced, it can drive the cover sleeve 6 to move.

[0024] The top and bottom ends of the cover sleeve 6 are flush with the surface of the flat groove 12, ensuring that the cover sleeve 6 moves in a straight line.

[0025] The top and bottom ends of the cover sleeve 6, away from the annular sleeve 4, are provided with threaded holes to facilitate the up-and-down movement of the positioning bolt 5 inside the cover sleeve 6.

[0026] Working principle: During use, when the length between the first stainless steel bar 7 and the second stainless steel bar 13 needs to be adjusted, the positioning bolt 5 can be rotated until it moves out of the insertion hole 11, allowing the first stainless steel bar 7 to be released. Then, the first stainless steel bar 7 can be rotated and threaded onto the outer ring of the threaded rod 10 through the threaded hole 9, allowing it to move away from the end of the second stainless steel bar 13 during rotation. At this time, the annular sleeve 4 rotates and fits inside the arc groove 8, allowing the first stainless steel bar 7 to move along with the annular sleeve 4 and the covering sleeve 6, thus allowing the covering... The sleeve 6 can wrap around the gap between the first stainless steel bar 7 and the second stainless steel bar 13, protecting the threaded rod 10. Simultaneously, by having the top and bottom ends of the inner wall of the sleeve 6 abut against the flat groove 12, the first stainless steel bar 7, when displaced, can cause the sleeve 6 to move along a straight line on the outer ring of the second stainless steel bar 13, improving the accuracy of the connection between the insertion hole 11 and the positioning bolt 5. Subsequently, when the first stainless steel bar 7 moves to the appropriate position, it can cause the positioning bolt 5 to be vertically aligned with the insertion hole 11. At this point, the positioning bolt 5 can be rotated in the opposite direction until it is inserted into the designated area within the flat groove 12. In the insertion hole 11, the cover sleeve 6 can be fixed and restricted. When the cover sleeve 6 cannot be moved, the first stainless steel rod 7 can also be fixed, completing the work of extending the length between the first stainless steel rod 7 and the second stainless steel rod 13. When this device is in use, the first stainless steel rod 7 can be moved away from the second stainless steel rod 13 on the outer ring of the threaded rod 10 when it rotates, so that the distance between the first stainless steel rod 7 and the second stainless steel rod 13 can be adjusted. At the same time, by wrapping the cover sleeve 6 around the gap between the first stainless steel rod 7 and the second stainless steel rod 13, the threaded rod 10 can be protected and the threaded rod 10 can be lifted. After the service life of 0, the cover sleeve 6 and the first stainless steel rod 7 can be positioned by screwing the positioning bolt 5 into the insertion hole 11 at the alignment position, thus completing the work of adjusting the total length of the second stainless steel rod 13 and the first stainless steel rod 7. Subsequently, when the first stainless steel rod 7 needs to be reset, the positioning bolt 5 can be screwed out from the inside of the insertion hole 11 again, so that the cover sleeve 6 can be released again. At this time, the first stainless steel rod 7 can be rotated in the opposite direction until the end of the first stainless steel rod 7 near the arc groove 8 is in contact with the end of the second stainless steel rod 13 near the threaded rod 10, thus completing the reset work of the first stainless steel rod 7.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stainless steel bar with an extension function, comprising a rear end device (3), wherein a front end device (2) is threadedly connected to the center of the front end of the rear end device (3), and a covering device (1) is rotatably connected to the outer ring of the front end device (2) near the rear end device (3), characterized in that: The covering device (1) includes an annular sleeve (4), a positioning bolt (5) and a covering sleeve (6). The annular sleeve (4) is fixedly installed on one end of the outer ring of the covering sleeve (6), and the positioning bolt (5) is symmetrically threaded into the other end of the outer ring of the covering sleeve (6).

2. The stainless steel bar with elongation function according to claim 1, characterized in that: The front end device (2) includes a first stainless steel bar (7), an arc groove (8) and a threaded hole (9). The threaded hole (9) is opened at one end inside the first stainless steel bar (7), and the arc groove (8) is opened on the outer ring of the first stainless steel bar (7) near the threaded hole (9).

3. The stainless steel bar with elongation function according to claim 2, characterized in that: The rear end device (3) includes a threaded rod (10), a socket (11), a flat groove (12), and a second stainless steel rod (13). The threaded rod (10) is fixedly installed at the center of one end of the second stainless steel rod (13). The flat groove (12) is opened on the outer ring of the top and bottom ends of the second stainless steel rod (13) near the threaded rod (10). The socket (11) is equidistantly opened inside the flat groove (12).

4. The stainless steel bar with elongation function according to claim 3, characterized in that: The threaded hole (9) is threaded onto the outer ring of the threaded rod (10), and the annular sleeve (4) is rotatably fitted onto the outer ring of the arc groove (8).

5. The stainless steel bar with elongation function according to claim 4, characterized in that: The top and bottom ends of the inner part of the cover sleeve (6) are flush with the surface of the flat groove (12).

6. The stainless steel bar with elongation function according to claim 5, characterized in that: The cover sleeve (6) has threaded holes at its top and bottom ends away from the annular sleeve (4).

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