Pin shaft positioning and pressing device

Abstract

The utility model provides a pin shaft positioning and pressing device, and relates to the technical field of medical instrument energy surgical operations, the upper end of a base is provided with a pin groove and a mounting groove, an adjusting pin is arranged in the pin groove, a pull rod is mounted in the mounting groove, and a pushing and tightening device is fixed on the base through a bolt and a nut; a telescopic rod with threads is arranged at the front end of the pushing-tightening device, a handle is arranged at the rear end of the pushing-tightening device, the telescopic rod stretches out forwards when the handle is pressed downwards, and at the moment, the pushing-tightening device is in a pressed state. When the handle is lifted up, the telescopic rod retracts, and the pushing-tightening device is in a loosened state. According to the device, the pin shafts are pushed at the same time, so that the installation precision of the pin shafts is guaranteed, the stability of product quality is improved, and the use effect is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument energy surgery technical field, concretely is a pin shaft positioning and pressing device. BACKGROUND

[0002] With the application and popularization of ultrasonic knife technology, the contraindication of ultrasonic knife in clinical application is few, and its multiple advantages make it widely used in clinic, and it is suitable for more than ten departments such as gynecology, urology, thoracic surgery, hepatobiliary surgery, gastrointestinal surgery, head and neck surgery, ear-nose-throat surgery and pediatric surgery, and has entered various (specialty) fields of surgical operation, covering dozens of surgical operations.

[0003] The existing ultrasonic knife has the following deficiencies: when the trigger of the knife head is pulled or the trigger is reset, the trigger may occasionally feel blocked, and it is difficult to reset, and there is friction noise, which affects the operation of the operator. Through analysis, it is found that the sliding interference of the pin shaft on the pull rod driving the knife head closure in the sliding groove on both sides of the knife body shell occurs, and further analysis shows that the original installation mode of the two pin shafts is knocked in by the operator using tools, and is not installed at the same time, and the installation position precision is unstable. SUMMARY

[0004] In order to solve the above technical problems, the utility model provides a pin shaft positioning and pressing device, which comprises: a base, a pusher, a pull rod, an adjusting pin and a push rod.

[0005] The base is provided with a pin slot and a mounting slot at the upper end, the adjusting pin is arranged in the pin slot, the pull rod is mounted in the mounting slot, and the pusher is fixed on the base by bolts and nuts.

[0006] The front end of the pusher is provided with a telescopic rod with threads, the rear end is provided with a handle, the telescopic rod is stretched forward by pressing the handle, and at this time the pusher is in a pressing state; the telescopic rod is retracted by lifting the handle, and at this time the pusher is in a loosening state.

[0007] In the preferred embodiment, the pull rod is provided with mounting holes at both ends, one of which is used to assemble the first pin shaft into the connecting rod, and the other is used to assemble the second pin shaft into the pull rod, and the other end of the first pin shaft and the second pin shaft is aligned with the left and right side protruding cylindrical end faces of the push rod.

[0008] In the preferred embodiment, the push rod is simultaneously stretched forward by slowly pressing the handle of the pusher, the protruding cylindrical end faces on both sides of the push rod are in the same plane, and the protruding cylindrical end faces on both sides of the push rod simultaneously push the first pin shaft and the second pin shaft into the pull rod, and at the same time the first pin shaft passes through the mounting hole of the connecting rod until the other end of the first pin shaft and the second pin shaft simultaneously presses the adjusting pin, and at this time the end faces of the first pin shaft and the second pin shaft are in the same plane.

[0009] In the preferred embodiment, in the pressing state, one end of the adjusting pin abuts against the base, and the other end abuts against the end faces of the first pin shaft and the second pin shaft.

[0010] Compared with the prior art, the utility model has the following beneficial technical effects:

[0011] 1. The device of the utility model guarantees the installation precision of the pin shaft by simultaneously pushing the pin shaft, improves the stability of product quality, and has better use effect.

[0012] 2. The device of the utility model improves the convenience of assembly and improves the assembly efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0014] Figure 1 It is the overall structure schematic view of the pin shaft positioning and pressing device of the utility model;

[0015] Figure 2 It is the explosion view of the pin shaft positioning and pressing device of the utility model;

[0016] Figure 3 It is the structure schematic view of the pulling rod of the utility model;

[0017] Figure 4 It is the position schematic view of the pulling rod of the utility model;

[0018] Figure 5 It is the structure schematic view of the base of the utility model;

[0019] Figure 6 It is the structure schematic view of the pusher of the utility model. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application, and the technical scheme in the embodiments of the present application is clearly and completely described, obviously, the described embodiments are some embodiments of the present application, not all the embodiments.Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0021] In the embodiment drawings of the utility model, in order to better, more clearly describe the working principle of each element in the system, show the connecting relationship of each part in the device, just the relative position relationship between each element is distinguished, and it cannot constitute the limitation to signal transmission direction, connecting order and the size, dimension, shape of each part structure in element or structure.

[0022] As Figures 1-2 The pin shaft positioning and pressing device includes a base 3, a pusher 4, a pulling rod 5, an adjusting pin 6 and a push rod 7.

[0023] As Figure 5 The base structure schematic view is shown in the drawings, the base 3 upper end is provided with a pin slot 12 and a mounting slot 13, the adjusting pin is arranged in the pin slot 12, and the pulling rod is mounted in the mounting slot 13.

[0024] The pulling rod 5 is a main structural part on the ultrasonic knife and is used for driving the ultrasonic knife head to clamp the tissue to be cut. Figures 3-4 The pulling rod schematic view is shown in the drawings.

[0025] The ultrasonic knife includes a shell 11, and the pulling rod is provided with mounting holes at two ends, one of the mounting holes is used for assembling the first pin shaft 1 into the connecting rod 9, and the other mounting hole is used for assembling the second pin shaft 2 into the pulling rod, and the first pin shaft 1 and the second pin shaft 2 play a guiding role when the pulling rod moves. The other end of the first pin shaft 1 and the second pin shaft 2 is aligned with the left and right side protruding cylinders of the push rod.

[0026] The pusher is fixed on the base through a bolt 8 and a nut 10, and the pusher structure schematic view is shown in the drawings. Figure 6 The pusher structure schematic view is shown in the drawings, the pusher is provided with a telescopic rod 14 with threads at the front end, and a handle 15 at the rear end, the telescopic rod is stretched forward by pressing the handle, and at this time, the pusher is in a pressing state; the telescopic rod is retracted by lifting the handle, and at this time, the pusher is in a loosening state.

[0027] The specific operation process is as follows:

[0028] The adjusting pin is placed into the base pin slot, the pulling rod is placed into the base mounting slot, the push rod is driven forward by slowly pressing the pusher handle, the two side protruding cylinders of the push rod are used for pressing the first pin shaft 1 and the second pin shaft 2 into the pulling rod at the same time, the two cylinder end faces are in the same plane, the left and right side protruding cylinders of the push rod are used for pressing the first pin shaft 1 and the second pin shaft 2 at the same time, the first pin shaft 1 passes through the connecting rod mounting hole, until the other end of the first pin shaft 1 and the second pin shaft 2 is pressed to the adjusting pin at the same time, at this time, the end face positions of the first pin shaft 1 and the second pin shaft 2 are in the same plane, and the distance of the pulling rod extending out of the pulling rod is also controlled in the required range.

[0029] Need to explain that "compaction state" means in the adjustment pin end close to the base, the other end close to the first pin shaft 1, the end face of the second pin shaft 2, if the adjustment pin is not pressed, then the same side of the first pin shaft 1, the second pin shaft 2 two end faces are no longer in a plane.

[0030] Therefore, the utility model discloses a kind of pin shaft positioning and compacting device, by simultaneously pushing pin shaft, the installation precision of pin shaft is guaranteed, the stability of product quality is improved, better use effect, the convenience of assembly is improved, and assembly efficiency is improved.

[0031] The above is only the specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be limited to the protection scope of claims.

Claims

1. A pin positioning and hold down device, characterized by Include: Base, pusher, pull rod, adjusting pin, push rod; The upper end of the base is provided with a pin groove and a mounting groove, the adjusting pin is arranged in the pin groove, the pull rod is mounted in the mounting groove, and the pusher is fixed on the base through a bolt and a nut; The front end of the pusher is provided with a threaded telescopic rod, the rear end is provided with a handle, the telescopic rod is stretched forward by pressing the handle, at this time the pusher is in a pressing state; the telescopic rod is retracted by lifting the handle, at this time the pusher is in a loosening state; Both ends of the pull rod are provided with mounting holes, one of which is used to assemble a first pin shaft into a connecting rod, and the other is used to assemble a second pin shaft into the pull rod, and the other end of the first pin shaft and the second pin shaft is aligned with the left and right side protruding cylindrical end faces of the push rod.

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