Medical stainless steel pipe reaming device

Abstract

A medical stainless steel tube chambering device comprises a grab handle device, a limiting device connected to one end of the grab handle device and a chambering device connected to the other end of the grab handle device, external threads are arranged on the head of the grab handle device, a connecting hole is formed in the tail of the grab handle device, and a set of sliding grooves are formed in three grooves formed in the head of the grab handle device in an annular array. The set of sliding grooves comprises two sliding grooves, a sliding block is connected into each sliding groove in a sliding mode, a hinge joint is arranged on each sliding block, the limiting device comprises three limiting clamps, the three limiting clamps are matched with one another, limiting parts in the limiting clamps are connected with connecting parts, and hinge joint holes are formed in the connecting parts and matched with the hinge joints; the center of the reaming device and the center of the limiting device are located on the same center line, the reaming device is connected to the tail of the grab handle device, and the reaming end of the reaming device penetrates through and extends into the grab handle device through the connecting hole, so that in the reaming machining process of the stainless steel pipe fitting, the production cost and the machining error are reduced, and the reaming effect is improved.

Description

Technical Field

[0001] This application relates to the technical field of stainless steel pipe processing, and in particular to a device for expanding the hole of a medical stainless steel pipe. Background Technology

[0002] Stainless steel tubes are hollow, long, round steel materials widely used in mechanical structural components of medical equipment. During the manufacturing process, the ends of medical stainless steel tubes are usually flared according to usage requirements to enhance the fit between the stainless steel tube and the handle and prevent the handle from falling off.

[0003] However, in the existing stainless steel pipe reaming process, the stainless steel pipe fitting is placed in a separate mold device to limit and fix the stainless steel pipe fitting, and then another reaming device is used to ream the end of the stainless steel pipe fitting to be reamed. Two or more devices need to work together to complete the reaming process of the stainless steel pipe fitting. The production cost is high, and because the working distance between the cooperating devices is large, the error in the reaming process is large, which affects the reaming effect. Utility Model Content

[0004] This utility model provides a device for expanding the hole of a medical stainless steel tube, which reduces production costs and processing errors and improves the expanding effect during the hole expansion process of stainless steel tubes.

[0005] To achieve the aforementioned objectives, this application adopts the following technical solution:

[0006] A medical stainless steel tube expansion device, characterized in that it includes:

[0007] The grip device has an external thread at its head and a connecting hole at its tail. The head of the grip device has three grooves arranged in a ring. Each groove has a set of sliding grooves inside. Each set of sliding grooves includes two sliding grooves. A slider is slidably connected inside the sliding groove. The slider has a hinge joint.

[0008] A limiting device connected to one end of the grip device includes three limiting clips that cooperate with each other. Each limiting clip includes a connecting part and a limiting part. The limiting part is connected to the connecting part. The connecting part is provided with a hinge hole that cooperates with the hinge joint.

[0009] A hole-enlarging device is connected to the other end of the grip device. The center of the hole-enlarging device and the center of the limiting device are located on the same center line. The hole-enlarging device is connected to the tail of the grip device. The enlarged end of the hole-enlarging device passes through the connecting hole into the grip device and extends into the interior of the grip device.

[0010] In some alternative embodiments, the grip device includes a housing and an inner housing connected to the housing, the housing and the inner housing forming a receiving cavity, a sensing device is provided on the side wall of the inner housing, a through hole is provided on the side wall of the inner housing, the sensing device passes through the through hole through the side wall of the inner housing, the detection end of the sensing device faces the inside of the inner housing, and the wiring terminal and wiring of the sensing device are placed inside the receiving cavity.

[0011] In some alternative embodiments, a double limiting ring is connected to the head of the housing.

[0012] In some optional embodiments, the outer side wall of the head of the housing is provided with external threads, the double limiting ring includes a first limiting ring and a second limiting ring, the inner side walls of the first limiting ring and the second limiting ring are provided with internal threads, the internal threads on the first limiting ring and the second limiting ring are engaged with the external threads on the housing, and the axes of the first limiting ring and the second limiting ring are on the same axis.

[0013] In some alternative embodiments, all three grooves are provided on the outer side wall of the housing.

[0014] In some alternative implementations, the two grooves are symmetrically distributed inside the groove.

[0015] In some alternative embodiments, each of the grooves is disposed on the inner sidewall of the groove.

[0016] In some alternative embodiments, the groove is T-shaped, the slider is also T-shaped, and the limiting clamp is L-shaped.

[0017] In some alternative embodiments, the outer shell and the inner shell are connected at the tail end, the connection end of the outer shell and the inner shell is provided with the connection hole, and the expansion end of the expansion device extends into the interior of the inner shell through the connection hole and is located near the sensing device.

[0018] In some optional embodiments, a set of limiting strips is provided on the inner sidewall of the limiting part, and an avoidance groove is also provided on the inner sidewall of the limiting part, the avoidance groove corresponding to the first limiting ring.

[0019] The medical stainless steel tube expansion device provided in this application has the following beneficial effects:

[0020] The technical solution adopted in this application includes a medical stainless steel tube reaming device, comprising a handle device, a limiting device connected to one end of the handle device, and a reaming device connected to the other end of the handle device. The head of the handle device is provided with an external thread, and the tail of the handle device is provided with a connecting hole. A set of sliding grooves is set inside the three grooves arranged in a ring array on the head of the handle device. The set of sliding grooves includes two sliding grooves, and a slider is slidably connected inside the grooves. The slider is provided with a hinge joint. The limiting device includes three limiting clamps, which cooperate with each other. The limiting part of the limiting clamp is connected to the connecting part, and the connecting part is provided with a hinge hole that cooperates with the hinge joint. The center of the reaming device and the center of the limiting device are located on the same center line. The reaming device is connected to the tail of the handle device, and the reaming end of the reaming device passes through the connecting hole and extends into the interior of the handle device. This reduces production costs and processing errors and improves the reaming effect during the reaming process of stainless steel tubes. Attached Figure Description

[0021] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a perspective view of a medical stainless steel tube expansion device according to this application;

[0023] Figure 2 This is a perspective view of a medical stainless steel tube expansion device according to this application.

[0024] Figure 3 yes Figure 2 Enlarged view of circle A shown;

[0025] Figure 4 This is a partial structural diagram from another perspective of the medical stainless steel tube expansion device of this application;

[0026] Figure 5 yes Figure 4 Enlarged view of circle B shown;

[0027] Figure 6 This is a cross-sectional view from another perspective of the medical stainless steel tube expansion device of this application;

[0028] Figure 7 yes Figure 6 An enlarged view of circle C shown.

[0029] Figure label:

[0030] 10. Handle device; 10A. Connecting hole; 11. Outer shell; 12. Inner shell; 12A. Receiving cavity; 12B. Through hole; 121. Sensing device; 13. External thread; 14. Double limiting ring; 141. First limiting ring; 142. Second limiting ring; 142A. Internal thread; 15. Groove; 151. Slide groove; 152. Slider; 153. Hinge joint;

[0031] 20. Limiting device; 21. Limiting clamp; 211. Connecting part; 212. Limiting part; 213. Hinge hole; 214. Limiting strip; 215. Alternating groove;

[0032] 30. Hole reaming device. Detailed Implementation

[0033] The specific embodiments of this application are described below with reference to the accompanying drawings and examples. Through the content described in this specification, those skilled in the art can clearly and completely understand the technical solution, the technical problem solved, and the resulting technical effects of this application. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, for ease of description, only the parts related to this application are shown in the accompanying drawings.

[0034] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the contents described in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size should fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0035] The use of terms such as "first," "second," and "the" does not imply quantity limitation and may indicate singular or plural. The terms "comprising," "including," "having," and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or modules is not limited to the listed steps or units, but may also include steps or units not listed, or other steps or units inherent to such processes, methods, products, or devices. The terms "connected," "linked," and "coupled" used in this application are not limited to physical or mechanical connections, but may also include direct or indirect electrical connections.

[0036] It should also be noted that the longitudinal section corresponding to the embodiment of this application can be the section corresponding to the front view direction, the transverse section can be the section corresponding to the right view direction, and the horizontal section can be the section corresponding to the top view direction.

[0037] Furthermore, where there is no conflict, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] A medical stainless steel tube enlarging device includes a handle device 10, a limiting device 20 connected to one end of the handle device 10, and an enlarging device 30 connected to the other end of the handle device 10.

[0039] The grip device 10 includes a housing 11 and an inner housing 12 connected to the housing 11. The housing 11 and the inner housing 12 form a receiving cavity 12A. A sensing device 121 is provided on the side wall of the inner housing 12. Specifically, a through hole 12B is provided on the side wall of the inner housing 12. The sensing device 121 passes through the through hole 12B and penetrates the side wall of the inner housing 12. The detection end of the sensing device 121 faces the interior of the inner housing 12. The wiring terminals and circuitry of the sensing device 121 are placed inside the receiving cavity 12A. The head of the handle device 10 is provided with an external thread 13, and its tail is provided with a connecting hole 10A. Specifically, the outer side wall of the head of the outer shell 11 is provided with an external thread 13. The outer shell 11 and the inner shell 12 are connected at the tail, and the connecting end is provided with a connecting hole 10A. A double limiting ring 14 is connected to the head of the outer shell 11. The double limiting ring 14 includes a first limiting ring 141 and a second limiting ring 142. The inner side walls of the first limiting ring 141 and the second limiting ring 142 are both provided with internal threads 142. A. The upper internal threads 142A on the first limiting ring 141 and the second limiting ring 142 are engaged with the external threads 13 on the outer shell 11. The axes of the first limiting ring 141 and the second limiting ring 142 are on the same axis. The first limiting ring 141 limits the extension distance of the limiting device 20, and the second limiting ring 142 limits the retraction distance of the limiting device 20. The head of the grip device 10 has three grooves 15 arranged in a ring. Specifically, the three grooves 15 are all provided on the outer side wall of the outer shell 11. Each groove 15 is provided with a set of sliding grooves 151. The set of sliding grooves 151 includes two sliding grooves 151. The two sliding grooves 151 are symmetrically distributed inside the groove 15. A slider 152 is slidably connected inside the sliding groove 151. The slider 152 is provided with a hinge joint 153. Furthermore, each sliding groove 151 is respectively provided on the inner side wall of the groove 15. The shape of the sliding groove 151 is T-shaped, and the shape of the slider 152 is also T-shaped.

[0040] The center of the limiting device 20 and the center of the expanding device 30 are located on the same center line. The limiting device 20 includes three limiting clamps 21, which cooperate with each other to limit and fix the stainless steel pipe fitting during processing. Each limiting clamp 21 includes a connecting part 211 and a limiting part 212. The limiting part 212 is connected to the connecting part 211. The connecting part 211 is provided with a hinge hole 213, which cooperates with the hinge joint 153 to achieve... The limiting device 20 is hinged to the handle device 10. The limiting part 212 is located between the first limiting ring 141 and the second limiting ring 142. Furthermore, the limiting clamp 21 is L-shaped. A set of limiting strips 214 are provided on the inner side wall of the limiting part 212. An avoidance groove 215 is also provided on the inner side wall of the limiting part 212. The avoidance groove 215 corresponds to the first limiting ring 141 to avoid interference of the first limiting ring 141 with the limiting device 20 during operation. The enlarging device 30 is connected to the tail of the handle device 10. Its enlarging end passes through the connecting hole 10A through the handle device 10 and extends into the interior of the handle device 10. Furthermore, its enlarging end extends into the interior of the inner shell 12 and is located near the sensing device 121 to facilitate sensing at the connection between the stainless steel pipe and the enlarging end of the enlarging device 30.

[0041] Here, one end of the grip device 10 is connected to a limiting device 20, and the other end of the grip device 10 is connected to a hole-expanding device 30. The head of the grip device 10 is provided with an external thread 13, and the tail of the grip device 10 is provided with a connecting hole 10A. The head of the grip device 10 has three grooves 15 arranged in a ring array. Each groove 15 has a set of sliding grooves 151 inside, and a set of sliding grooves 151 includes two sliding grooves 151. A slider 152 is slidably connected inside the sliding grooves 151, and a hinge joint 153 is provided on the slider 152. The limiting device 20 includes three limiting clips 21, which cooperate with each other. The limiting clips 21 include The connecting part 211 and the limiting part 212 are connected to the connecting part 211. The connecting part 211 is provided with a hinge hole 213, which cooperates with the hinge joint 153. The center of the hole-expanding device 30 connected to the other end of the handle device 10 is located on the same center line as the center of the limiting device 20. The hole-expanding device 30 is connected to the tail of the handle device 10. The hole-expanding end of the hole-expanding device 30 passes through the connecting hole 10A and extends into the interior of the handle device 10. This reduces production costs and processing errors and improves the hole-expanding effect during the hole-expanding process of stainless steel pipe fittings.

[0042] To facilitate understanding, the working principle of this application is further described as follows: In the production process of the medical stainless steel tube reaming device 30, firstly, the power is connected to the reaming device 30. The operator picks up the entire device with one hand using the handle device 10, and with the other hand, picks up the stainless steel tube and gently places it on the limiting strip 214 on the inner wall of a limiting clamp 21. At this time, by manually adjusting the first limiting ring 141, the second limiting ring 142, and the other two limiting clamps 21, the three limiting clamps 21 cooperate to clamp the stainless steel tube. Simultaneously, the stainless steel tube is inserted into the inner shell 12 of the handle device 10 until the sensing device 121 senses the stainless steel tube, causing the end of the stainless steel tube to be reamed to abut against the reaming end of the reaming device 30. Finally, the three limiting clamps 21 clamp the stainless steel tube tightly. At this point, the hole-expanding device 30 can be activated while holding the handle device 10 with both hands. Inside the inner shell 12, the hole-expanding device 30 expands the stainless steel pipe fitting, realizing the integration of the hole-expanding device 30 and the mold device, as well as weight reduction, effectively reducing production costs. At the same time, it avoids the large processing error caused by excessive working distance during the cooperation of multiple devices, effectively improving the hole-expanding effect. In addition, through the restriction of the connecting part 211 of the limiting clamp 21 by the first limiting ring 141 and the second limiting ring 142, and the sliding of the slider 152 inside the slide groove 151, and the cooperation between the hinge joint 153 and the hinge hole 213, it is further realized that the three limiting clamps 21 can clamp stainless steel pipe fittings of different diameters, improving the practicality of the limiting device 20.

[0043] Although this application has been described and illustrated with reference to specific embodiments thereof, such description and illustration are not limiting of this application. It will be readily understood by those skilled in the art that various changes can be made and equivalent elements can be substituted within embodiments without departing from the true spirit and scope of this application as defined by the appended claims. Illustrations may not be drawn to scale. Differences may exist between the technical representation in this application and actual implementation due to variables in the manufacturing process, etc. Other embodiments of this application may exist that are not specifically described. The description and illustrations should be considered illustrative rather than restrictive. Modifications can be made to adapt particular circumstances, materials, composition, methods, or processes to the objectives, spirit, and scope of this application. All such modifications fall within the scope of the appended claims. While the methods disclosed herein have been described with reference to specific operations performed in a particular order, it should be understood that these operations can be combined, subdivided, or reordered to form equivalent methods without departing from the teachings of this application. Therefore, unless specifically indicated herein, the order and grouping of operations do not limit this application.

Claims

1. A device for expanding the opening of a medical stainless steel tube, characterized in that, include A grip device (10) is provided with an external thread (13) at the head and a connecting hole (10A) at the tail. The head of the grip device (10) has three grooves (15) arranged in a ring. Each groove (15) is provided with a set of sliding grooves (151). A set of sliding grooves (151) includes two sliding grooves (151). A slider (152) is slidably connected inside the sliding groove (151). The slider (152) is provided with a hinge joint (153). A limiting device (20) is connected to one end of the grip device (10). The limiting device (20) includes three limiting clips (21). The three limiting clips (21) cooperate with each other. Each limiting clip (21) includes a connecting part (211) and a limiting part (212). The limiting part (212) is connected to the connecting part (211). The connecting part (211) is provided with a hinge hole (213). The hinge hole (213) cooperates with the hinge joint (153). A hole-enlarging device (30) is connected to the other end of the grip device (10). The center of the hole-enlarging device (30) and the center of the limiting device (20) are located on the same center line. The hole-enlarging device (30) is connected to the tail of the grip device (10). The enlarged end of the hole-enlarging device (30) passes through the connecting hole (10A) into the grip device (10) and extends into the interior of the grip device (10).

2. The medical stainless steel tube expansion device according to claim 1, characterized in that, The grip device (10) includes a housing (11) and an inner housing (12) connected to the housing (11). The housing (11) and the inner housing (12) form a receiving cavity (12A). A sensing device (121) is provided on the side wall of the inner housing (12). A through hole (12B) is provided on the side wall of the inner housing (12). The sensing device (121) passes through the side wall of the inner housing (12) through the through hole (12B). The detection end of the sensing device (121) faces the inside of the inner housing (12). The wiring terminal and wiring of the sensing device (121) are placed in the receiving cavity (12A).

3. The medical stainless steel tube enlarging device according to claim 2, characterized in that, The head of the outer shell (11) is connected to a double limiting ring (14).

4. The medical stainless steel tube expansion device according to claim 3, characterized in that, The outer side wall of the head of the outer shell (11) is provided with an external thread (13). The double limiting ring (14) includes a first limiting ring (141) and a second limiting ring (142). The inner side walls of the first limiting ring (141) and the second limiting ring (142) are provided with internal threads (142A). The internal threads (142A) on the first limiting ring (141) and the second limiting ring (142) are engaged with the external threads (13) on the outer shell (11). The axes of the first limiting ring (141) and the second limiting ring (142) are on the same axis.

5. The medical stainless steel tube expansion device according to claim 4, characterized in that, All three grooves (15) are provided on the outer side wall of the outer shell (11).

6. The medical stainless steel tube expansion device according to claim 1, characterized in that, Two grooves (151) are symmetrically distributed inside the groove (15).

7. The medical stainless steel tube expansion device according to claim 6, characterized in that, Each of the grooves (151) is respectively provided on the inner sidewall of the groove (15).

8. The medical stainless steel tube enlargement device according to claim 1 or 7, characterized in that, The groove (151) is T-shaped, the slider (152) is also T-shaped, and the limiting clamp (21) is L-shaped.

9. The medical stainless steel tube enlargement device according to claim 2, characterized in that, The outer shell (11) and the inner shell (12) are connected at the tail end. The connection end of the outer shell (11) and the inner shell (12) is provided with the connection hole (10A). The expansion end of the expansion device (30) extends into the interior of the inner shell (12) through the connection hole (10A) and is located near the sensing device (121).

10. The medical stainless steel tube expansion device according to claim 4, characterized in that, The inner wall of the limiting part (212) is provided with a set of limiting strips (214), and the inner wall of the limiting part (212) is also provided with a clearance groove (215), which corresponds to the first limiting ring (141).

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