Multi-needle hydro-optical injection needle device

Abstract

The multi-needle hydro-optical injection needle device comprises a needle shell component, a needle seat component and a plurality of steel needles, the needle shell component comprises a main shell, a top opening cover of an upper assembling cavity of the main shell is provided with a rotary adjusting cap, and the needle seat component comprises a guide needle seat with a square fixing cavity and a shunting seat with a shunting channel. A steel needle is installed at the bottom of the flow dividing base, a liquid guide pipe is arranged on the top of the flow dividing base in a protruding mode, the flow dividing base is arranged in the square fixing cavity, and the steel needle penetrates through the needle fixing pipe and an external thread part of the liquid guide pipe to be in threaded connection with a threaded hole of the rotary adjusting cap. A hub part with a circular peripheral contour surface is formed at the upper part of the guide needle seat, a circular sealing ring groove is formed in the hub part, a sealing ring is mounted in the sealing ring groove, and the hub part is arranged in the circular step cavity and is in contact sealing fit with the circular cylinder wall of the circular step cavity through the sealing ring. The problem of installation deformation of the sealing ring is solved, and reliable sealing between the guide pin seat and the main shell is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical apparatus and exactly is multi -needle water light injection needle device. BACKGROUND

[0002] Multi -needle injection needle has the advantages such as small wound area, small injection pain feeling, high injection efficiency, and is widely used in cosmetic medical industry. A kind of multi -needle water light injection needle device of existing generally includes needle shell component and needle seat component, needle shell component includes main shell, and the top opening cover of main shell is equipped with adjusting cap, adjusting cap is fixed in main shell by buckle and can rotate relative to main shell, adjusting cap center is equipped with screw hole, needle seat component includes guide needle seat and shunt seat, shunt seat top is connected with injection connecting part, shunt seat bottom is fixed steel needle, shunt seat is placed in the barrel shell of guide needle seat upper portion, steel needle passes through the needle fixing pipe of guide needle seat bottom, the components of needle seat component are integrated after assembly by glue filling and are fixed, main shell is equipped with directional guide cavity, guide needle seat is slidably fitted in guide cavity, threaded portion is provided on injection connecting part, threaded portion is screw thread matched in the screw hole of adjusting cap, so rotating adjusting cap can drive needle seat component to lift, since guide needle seat needs to be positioned, therefore, the shape of existing guide needle seat is square (such as the water light needle device of multiple holes disclosed in authorized announcement No.CN215275102U), after installing sealing ring on guide needle seat, sealing ring is stressed more at the corner position of guide needle seat, and there is a risk of sealing failure of sealing ring at the position, leading to insufficient sealing reliability. In addition, the head end of existing injection connecting part adopts two wings for clamping threaded port on injection apparatus, and slipping easily occurs, and the connection reliability is insufficient. SUMMARY

[0003] The utility model discloses the purpose of invention: to overcome the defects in the prior art, the utility model provides a kind of multi -needle water light injection needle device of sealed reliability.

[0004] Another object of the utility model is to provide a structure for the injection connecting part to reliably screw with the injection apparatus.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] The utility model provides a kind of multi-needle water light injection needle device, including needle shell component, needle seat component and several steel needles, needle shell component includes main shell, middle baffle is equipped in main shell, and upper assembly cavity and lower negative pressure cavity are separated in the inner cavity of main shell by middle baffle, the top opening cover of upper assembly cavity is equipped with rotary adjusting cap, rotary adjusting cap is rotated and cooperates on main shell, rotary adjusting cap center has screw hole, upper assembly cavity includes square guide cavity, the needle seat component includes guide needle seat with square fixed cavity and shunt seat with shunt channel, guide needle seat is slidably fitted in guide cavity, the bottom of guide needle seat is equipped with needle fixed pipe being communicated with square fixed cavity, shunt seat bottom installs steel needle being communicated with shunt channel, shunt seat top projects and has liquid guide pipe, the outer thread part of liquid guide pipe is formed in middle part and the end part is formed with clamping structure, shunt seat is placed in square fixed cavity, shunt seat side is equipped with glue filling recess, steel needle passes through needle fixed pipe, the outer thread part of liquid guide pipe is screwed with the screw hole of rotary adjusting cap, and its characterized in that:the upper assembly cavity further includes circular step cavity above guide cavity, the hub portion with circular outer circumferential profile surface is formed on the upper portion of guide needle seat, the circular annular sealing ring groove is equipped on the hub portion, and sealing ring is installed in sealing ring groove, and the hub portion is placed in circular step cavity and is sealedly cooperated with the circular annular barrel wall of circular step cavity by sealing ring.

[0007] Preferably, the hub portion is formed with an expanding opening constituted by an inclined wall corresponding to the mouth of the square fixed cavity.

[0008] Preferably, the four corner positions of the square fixed cavity are formed with support pads, and the shunt seat is supported on the support pads, so that a glue filling cavity is formed between the shunt seat and the bottom wall of the square fixed cavity.

[0009] Preferably, the clamping structure includes two helical clamping ribs uniformly distributed on the outer wall of the liquid guide pipe, and each of the two helical clamping ribs is composed of a head rib and a tail rib arranged at intervals.

[0010] Preferably, the rotary adjusting cap is provided with a ring of scale markings, and the outer contour surface of the main shell is provided with an indicating rib corresponding to the scale markings.

[0011] By adopting the above technical scheme, the hub portion with a circular outer circumferential profile surface is formed on the upper portion of the guide needle seat, the circular step cavity is formed at the opening portion of the upper assembly cavity of the main shell for accommodating the hub portion, and the sealing ring is arranged on the hub portion, so that the installation deformation of the sealing ring is solved, the hub portion is placed in the circular step cavity and is sealedly cooperated with the circular annular barrel wall of the circular step cavity through the sealing ring, and the sealing reliability between the guide needle seat and the main shell is ensured.

[0012] The utility model will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1The utility model discloses a perspective view;

[0014] Figure 2 The utility model discloses a plan view;

[0015] Figure 3 For Figure 2 Sectional view along A-A of middle part;

[0016] Figure 4 The utility model discloses an explosion view;

[0017] Figure 5 The utility model discloses the structure schematic diagram of main casing;

[0018] Figure 6 The utility model discloses the structure schematic diagram of guide needle seat. Specific implementation

[0019] Referring to the accompanying Figures 1-6 The utility model discloses a kind of multi-needle water light injection needle device, including needle shell component, needle seat component and several steel needles, needle shell component includes main casing 1, middle baffle 11 is equipped in main casing 1, and the inner cavity of main casing 1 is separated into upper assembly cavity and lower negative pressure cavity 10 by middle baffle 11, and the top opening cover of upper assembly cavity is equipped with rotary adjusting cap 2, rotary adjusting cap 2 is rotated and cooperates on main casing 1, rotary adjusting cap 2 center has screw hole 21, and upper assembly cavity includes square guide cavity 12, the needle seat component includes guide needle seat 3 with square fixed cavity 31 and shunt seat 4 with shunt passage, guide needle seat 3 is slidably fitted in guide cavity 12, the bottom of guide needle seat 3 is equipped with needle fixing tube 32 being communicated with square fixed cavity 31, shunt seat 4 bottom installs steel needle 5 being communicated with shunt passage 40, shunt seat 4 top is protruded with liquid guide pipe 6, and the middle part of liquid guide pipe 6 is formed with outer thread part 61 and the end is formed with clamping structure, and shunt seat 4 is placed in square fixed cavity 31, and shunt seat 4 side is equipped with glue filling recess 41, and steel needle 5 passes through needle fixing tube 32, so that after shunt seat, steel needle assembly is in square fixed cavity of guide needle seat, glue filling along glue filling recess will needle seat component and steel needle be fixedly integrated, and the outer thread part 61 of liquid guide pipe 6 is screwed with the screw hole 21 of rotary adjusting cap 2, and the upper assembly cavity further includes circular step cavity 13 above guide cavity 12, and the upper part of guide needle seat 3 is formed with the wheel hub portion 33 of circular outer circumferential profile surface, and the wheel hub portion 33 is equipped with annular sealing ring groove 331, and sealing ring 7 is installed in sealing ring groove 331, and sealing ring 7 is assembled to the wheel hub portion on the upper part of guide needle seat, and the wheel hub portion is circular, so that the sealing ring groove formed is also circular, to avoid the deformation problem of sealing ring after installation, and the circular step cavity above guide cavity 12 is used to contain wheel hub portion, and sealing ring 7 is in contact with the circular annular cylinder wall of circular step cavity 13 and is sealedly cooperated;To reach the purpose of reliable sealing.

[0020] Further, due to the formation of the hub part, the wall thickness of the position is large, and the mouth of the square fixed cavity 31 in the hub part 33 is formed as an expansion 311 with an inclined wall. The formation of the expansion facilitates the installation of the shunt seat 4 into the square fixed cavity. Moreover, the inclined wall of the expansion also forms a certain space for the glue pouring port, with respect to the glue injection operation. In order to make the needle seat member fixed and reliable, the four corner positions of the square fixed cavity 31 are formed with support pads 34, and the shunt seat 4 is supported on the support pads 34, so that a glue pouring cavity 312 is formed between the shunt seat 4 and the bottom wall of the square fixed cavity 31. The glue pouring cavity makes the shunt seat and the guide needle seat fixed and reliable, and enables the glue to smoothly enter the needle fixing tube, thereby ensuring the reliable fixation of the steel needle. The support pads are arranged at the corner positions, and the positions are reasonably designed.

[0021] The utility model discloses another main improvement design is in solving needle fixed reliable problem, specifically, the clamping structure includes two spiral clamping convex ribs 62 that spiral extension is uniformly distributed on the outer wall of guide pipe 6, and two spiral clamping convex ribs 62 all are by the head convex rib 621 and tail convex rib 622 of interval arrangement constitute. Spiral clamping convex rib can realize reliable thread rotation, avoid slip, and two spiral clamping convex ribs all are by the head convex rib and tail convex rib of interval arrangement constitute, and it is convenient for processing molding, specifically, such as demolding operation, and do not need special thread demolding structure design.

[0022] In the embodiment, the rotating adjustment cap 2 is provided with a circle of scale marks, and the main shell 1 is provided with an indicating convex rib 14 corresponding to the scale marks.

Claims

1. A multi-needle hydro-optical injection needle device, comprising a needle shell member, a needle seat member and a plurality of steel needles, the needle shell member comprising a main shell, a middle partition plate is arranged in the main shell, the inner cavity of the main shell is divided into an upper assembly cavity and a lower negative pressure cavity through the middle partition plate, a rotating adjusting cap is arranged on the top opening cover of the upper assembly cavity, the rotating adjusting cap is rotationally and movably matched on the main shell, a threaded hole is arranged in the center of the rotating adjusting cap, the upper assembly cavity comprises a square guide cavity, the needle seat member comprises a guide needle seat with a square fixed cavity and a shunt seat with a shunt channel, the guide needle seat is slidably matched in the guide cavity, a needle fixing tube in communication with the square fixed cavity is arranged at the bottom of the guide needle seat, the steel needle in communication with the shunt channel is arranged at the bottom of the shunt seat, a liquid guide tube is protruded at the top of the shunt seat, an outer threaded part is formed in the middle of the liquid guide tube and a clamping structure is formed at the end of the liquid guide tube, the shunt seat is arranged in the square fixed cavity, a glue filling notch is arranged at the side of the shunt seat, the steel needle passes through the needle fixing tube, the outer threaded part of the liquid guide tube is screwed with the threaded hole of the rotating adjusting cap, characterized in that: The upper assembly cavity further comprises a circular step cavity above the guide cavity body, the upper part of the guide needle base is formed with a hub part with a circular outer peripheral contour surface, the hub part is provided with a circular annular sealing ring groove, a sealing ring is installed in the sealing ring groove, and the hub part is arranged in the circular step cavity and is in sealing cooperation with the circular annular cylinder wall of the circular step cavity through the sealing ring.

2. The multi-needle hydro-optical injection needle device according to claim 1, characterized in that: The mouth of the square fixed cavity in the hub part is formed by an inclined wall.

3. The multi-needle hydro-optical injection needle device according to claim 1, characterized in that: Four corner positions of the square fixed cavity are formed with supporting pads, and the shunt base is supported on the supporting pads, so that a glue pouring cavity is formed between the shunt base and the bottom wall of the square fixed cavity.

4. The multi-needle hydro-optical injection needle device according to claim 1, characterized in that: The clamping structure comprises two helical clamping protrusions which are uniformly distributed on the outer wall of the liquid guide tube in the circumferential direction, and each of the two helical clamping protrusions is composed of a head protrusion and a tail protrusion which are arranged at intervals.

5. The multi-needle hydro-optical injection needle device according to claim 1, characterized in that: The rotating adjustment cap is provided with a circle of scale marks, and the outer contour surface of the main shell is provided with an indicating protrusion which is correspondingly matched with the scale marks.

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