CN215840946U

CN215840946U - Infusion needle booster

Info

Publication number: CN215840946U
Application number: CN202121910560.2U
Authority: CN
Inventors: 吴榜东; 徐江辉
Original assignee: Royal Fornia Medical Equipment Co ltd
Current assignee: Royal Fornia Medical Equipment Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-02-18
Anticipated expiration: 2031-08-16

Abstract

The utility model provides a transfusion needle booster, which comprises: the upper part of the shell is provided with a tongue-shaped elastic sheet, a limiting hole is formed between the tongue-shaped elastic sheet and the shell, an accommodating groove is formed in the shell, and the accommodating groove extends towards the bottom of the shell to form a bottom opening; the concentrator is arranged in the accommodating groove in a sliding mode, a clamping tongue is arranged on the outer edge of the concentrator, the clamping tongue is clamped on the limiting hole, the clamping tongue can be separated from the limiting hole by pressing the tongue-shaped elastic sheet, the concentrator slides to the bottom opening, and the infusion needle assembly arranged in the concentrator is inserted into the skin of a patient; a detachment assembly for applying a driving force on the infusion needle assembly to detach the infusion needle assembly from the hub. The infusion needle booster can be operated and completed by only one hand, and is convenient to use.

Description

Infusion needle booster

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an infusion needle booster.

Background

Diabetes is a common clinical condition in which the immune system of a diabetic attacks and kills other cells of the pancreas, which themselves secrete insulin, resulting in the pancreas failing to secrete sufficient insulin, or insulin at all, and relying on exogenous insulin to maintain vital function.

At present, insulin injection treatment is considered to be an effective method for treating diabetes, and intensive treatment is carried out through insulin injection, so that the blood sugar, the blood fat, the blood pressure, the BMI and the like of a patient can reach the standard comprehensively. At present, insulin is mainly infused by inserting a subcutaneous infusion needle, and the subcutaneous infusion needle establishes a channel between subcutaneous tissues and liquid medicine to inject the insulin into a patient body. However, the subcutaneous infusion needle is short and the needle seat is small, so that the diabetic patient cannot hold the needle seat easily, and the puncture force is difficult to grasp when the patient pricks the needle by oneself, so that the condition that the needle cannot be pricked or the needle cannot be pricked can occur, the later-stage insulin infusion can be influenced, and the psychology of the patient can also generate certain burden. In addition, for the old patient, the needle point is not easy to observe and easy to prick, and the old patient can have the condition of hand trembling or hand softness, so that the old patient is not forced to prick the needle by oneself extremely inconveniently.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem of inconvenient use of a subcutaneous infusion needle. In order to solve the above problems, the present invention provides an infusion needle booster, comprising:

the upper part of the shell is provided with a tongue-shaped elastic sheet, a limiting hole is formed between the tongue-shaped elastic sheet and the shell, an accommodating groove is formed in the shell, and the accommodating groove extends towards the bottom of the shell to form a bottom opening;

the concentrator is arranged in the accommodating groove in a sliding mode, a clamping tongue is arranged on the outer edge of the concentrator, the clamping tongue is clamped on the limiting hole, the clamping tongue can be separated from the limiting hole by pressing the tongue-shaped elastic sheet, the concentrator slides to the bottom opening, and the infusion needle assembly arranged in the concentrator is inserted into the skin of a patient;

a detachment assembly for applying a driving force on the infusion needle assembly to detach the infusion needle assembly from the hub.

Furthermore, the shell further comprises a cover body, the cover body is arranged at the top of the shell and connected with the concentrator, and the cover body can drive the concentrator to move towards the top of the shell so that the clamping tongue is clamped on the limiting hole.

Furthermore, a clamping groove for accommodating the infusion needle assembly is formed in the concentrator, and a clamp is arranged on the clamping groove and used for clamping the infusion needle assembly.

Further, the release assembly includes release button and activity gim peg, release button wears to locate along the horizontal direction on the lid, just release button sets up one end in the lid is provided with the regulation inclined plane, the activity gim peg sets up along vertical direction in the concentrator, activity gim peg one end be equipped with adjust inclined plane looks butt's inclined plane, the activity gim peg other end with clamp is connected, and enables to press release button's drive power transmission extremely the activity gim peg, and makes clamp with the clamping state is relieved to the transfusion needle subassembly.

Further, the separating assembly further comprises a first elastic assembly, the first elastic assembly is arranged inside the cover body, the separating button is sleeved with the first elastic assembly, one end of the first elastic assembly is abutted to the inner wall of the separating button, the other end of the first elastic assembly is abutted to the inner wall of the cover body, and elasticity for restoring the position of the separating button can be generated.

Furthermore, a plurality of convex blocks distributed along the circumferential direction of the movable clamping bolt are arranged on the outer edge of the movable clamping bolt.

Furthermore, the separating assembly further comprises a second elastic assembly, the second elastic assembly is sleeved on the movable clamping bolt, one end of the second elastic assembly is abutted against the bump, the other end of the second elastic assembly is abutted against the inner wall of the concentrator, and elasticity for restoring the position of the movable clamping bolt can be generated.

Furthermore, a third elastic assembly is further arranged between the concentrator and the shell, the third elastic assembly is sleeved on the concentrator, one end of the third elastic assembly is abutted to the clamping tongue, the other end of the third elastic assembly is abutted to the inner wall of the upper portion of the shell, and elasticity for enabling the concentrator to move towards the bottom opening can be generated.

Furthermore, a side opening communicated with the accommodating groove is formed in the lower portion of the shell, and the side opening is arranged at a position close to the limiting hole, extends downwards and is communicated with the bottom opening.

Further, infusion needle subassembly includes infusion needle and clamping part, the infusion needle sets up along the horizontal direction, just the infusion needle is followed casing side opening is worn out and is extended to the casing is outside, the clamping part quilt the clamp centre gripping.

According to the infusion needle booster, the tongue-shaped elastic sheet is arranged on the shell, the limiting hole is formed between the tongue-shaped elastic sheet and the shell, the concentrator is clamped on the limiting hole through the clamping tongue on the outer edge, the concentrator can move to the opening at the bottom by pressing the tongue-shaped elastic sheet, so that an infusion needle assembly arranged inside the concentrator is inserted into the skin of a patient, and after the infusion needle is inserted into the skin of the patient, a driving force is applied to the infusion needle assembly through the separation assembly, and the infusion needle assembly is separated from the concentrator; this transfusion needle booster convenient to use avoids partial diabetes patient (for example old person) to shake or hand weak because the hand causes the syringe needle to prick the condition not in place of not entering or the acupuncture to guaranteed the effect of injection, alleviateed patient's psychological fear, and this transfusion needle booster only need through pressing alright completion operation, need not the manual needle of putting of diabetes patient, only need singlehanded alright operation completion, it is extremely convenient to use.

Drawings

FIG. 1 is a schematic diagram of an explosive structure of an infusion needle booster in an embodiment of the present invention;

FIG. 2 is a schematic perspective view of an infusion needle booster according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view taken along plane B-B of FIG. 2;

FIG. 4 is a schematic perspective view of an embodiment of the present invention illustrating a retraction mechanism of an infusion needle booster;

FIG. 5 is a schematic cross-sectional view taken along plane A-A of FIG. 4;

FIG. 6 is a schematic cross-sectional view taken along plane B-B of FIG. 4;

FIG. 7 is a schematic diagram of a side view configuration of a retraction mechanism of an infusion needle booster according to an embodiment of the present invention;

FIG. 8 is a schematic drawing showing a separated perspective view of an infusion needle booster according to an embodiment of the present invention;

fig. 9 is a schematic cross-sectional view taken along plane B-B in fig. 8.

Description of reference numerals:

1-a shell; 2-a concentrator; 3-a separation assembly; 4-an infusion needle assembly; 5-cover body; 6-a third elastic component;

11-tongue shaped spring plate; 12-a limiting hole; 13-side opening; 21-clamping tongue; 22-a clamp; 31-a release button; 32-movable bolt; 33-a first elastic component; 34-a second elastic component; 41-infusion needle; 42-a clamping portion;

311-a sleeve; 312-adjusting rod; 313-button.

Detailed Description

At present, insulin is mainly infused by inserting a subcutaneous infusion needle, and the subcutaneous infusion needle establishes a channel between subcutaneous tissues and liquid medicine to inject the insulin into a patient body. However, the subcutaneous infusion needle is short and the needle seat is small, so that the diabetic patient cannot hold the needle seat easily, and the puncture force is difficult to grasp when the patient pricks the needle by oneself, so that the condition that the needle cannot be pricked or the needle cannot be pricked can occur, the later-stage insulin infusion can be influenced, and the psychology of the patient can also generate certain burden. In addition, for the old patient, the needle point is not easy to observe and easy to prick, and the old patient can have the condition of hand trembling or hand softness, so that the old patient is not forced to prick the needle by oneself extremely inconveniently.

In order to solve the above technical problems, embodiments of the present invention provide an infusion needle booster, in which a tongue-shaped spring plate and a limiting hole are disposed on a housing, so that an infusion needle assembly disposed inside a concentrator can be conveniently inserted into the skin of a patient, and a separation assembly is disposed so that an infusion needle assembly can be conveniently separated from the concentrator, so that the infusion needle booster is convenient to use.

The technical scheme of the utility model is clearly and thoroughly described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Further, in the description of the present invention, "at least one" means one or more unless specifically limited otherwise.

In the description of the present specification, the description of the term "some preferred embodiments" means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one preferred embodiment or preferred example of the present invention. Throughout this specification, the schematic representations of the terms used above do not necessarily refer to the same implementation or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to FIGS. 1-9, the present embodiment provides an infusion needle assist device, comprising: a housing 1, a concentrator 2, and a separator assembly 3, wherein,

the upper part of the shell 1 is provided with at least one tongue-shaped elastic sheet 11, one end of each tongue-shaped elastic sheet 11 is connected with the shell 1, the other end of each tongue-shaped elastic sheet 11 extends towards the outer side of the shell 1 and is movably arranged on the shell 1, a limiting hole 12 is formed between the movable end of each tongue-shaped elastic sheet 11 and the shell 1, an accommodating groove (not marked in the figure) is arranged in the shell 1, and the accommodating groove extends towards the bottom of the shell 1 to form a bottom opening (not marked in the figure);

the concentrator 2 is arranged in the accommodating groove in a sliding mode, at least one clamping tongue 21 is arranged on the outer edge of the concentrator 2, the clamping tongues 21 and the tongue-shaped elastic pieces 11 are arranged in a one-to-one correspondence mode, each clamping tongue 21 is clamped on the limiting hole 12, the tongue-shaped elastic pieces 11 extrude the clamping tongues 21 by pressing the tongue-shaped elastic pieces 11, the clamping tongues 21 are separated from the limiting holes 12 and enter the accommodating groove, the concentrator 2 can slide to the bottom opening, the infusion needle assembly 4 is arranged in the concentrator 2, and the infusion needle assembly 4 moves to the bottom opening along with the concentrator 2 and is inserted into the skin of a patient;

and the separation component 3 is arranged on one side close to the top of the shell 1 and used for applying driving force to the infusion needle component 4 so as to separate the infusion needle component 4 from the concentrator 2.

According to the infusion needle booster provided by the embodiment, the shell is provided with the tongue-shaped elastic sheet, the limiting hole is formed between the tongue-shaped elastic sheet and the shell, the concentrator is clamped on the limiting hole through the clamping tongue on the outer edge, the concentrator can move to the opening at the bottom by pressing the tongue-shaped elastic sheet, so that an infusion needle assembly arranged in the concentrator is inserted into the skin of a patient, and after the infusion needle is inserted into the skin of the patient, the infusion needle assembly is separated from the concentrator by applying driving force on the infusion needle assembly through the separation assembly; this transfusion needle booster convenient to use avoids partial diabetes patient (for example old person) to shake or hand weak because the hand causes the syringe needle to prick the condition not in place of not entering or the acupuncture to guaranteed the effect of injection, alleviateed patient's psychological fear, and this transfusion needle booster only need through pressing alright completion operation, need not the manual needle of putting of diabetes patient, only need singlehanded alright operation completion, it is extremely convenient to use.

Referring to fig. 1 and 3, the infusion needle booster further comprises a cover body 5, the cover body 5 is arranged at the top of the shell 1, the cover body 5 is connected with the concentrator 2, the cover body 5 can drive the concentrator 2 to move along the vertical direction, and a clamping tongue 21 on the outer edge of the concentrator 2 is clamped on the limiting hole 12 to complete installation of the infusion needle assembly 4 and the concentrator 2.

Make 5 vertical rebound of lid through pulling lid 5, the block tongue 21 joint that can make 2 outer fringes of concentrator is on spacing hole 12, accomplish transfusion needle subassembly 4's installation, make block tongue 21 leave in spacing hole 12 gets into the holding tank through pressing down tongue shell fragment 11, thereby make concentrator 2 can remove to the bottom opening part, transfusion needle subassembly 4 that sets up in the concentrator 2 inserts in patient's the skin, the rethread separation subassembly 3 exerts drive power on transfusion needle subassembly 4, make

transfusion needle subassembly

4 and 2 separations of concentrator, therefore, can realize the used repeatedly of transfusion needle boost motor through changing transfusion needle subassembly 4, the use cost of transfusion needle boost motor has been reduced.

Referring to fig. 1 and 3, the separating assembly 3 includes a separating button 31, a movable latch 32, a first elastic assembly 33 and a second elastic assembly 34, wherein the separating button 31 is horizontally disposed on the cover 5, one end of the separating button 31 is disposed outside the cover 5, the other end of the separating button 31 is disposed inside the cover 5, one end of the separating button 31 disposed outside the cover 5 is used for being pressed by a patient to provide a driving force, one end of the separating button 31 disposed inside the cover is provided with an adjusting inclined surface (not shown), the movable latch 32 is vertically disposed inside the concentrator 2, one end of the movable latch 32 abuts against the adjusting inclined surface, the other end of the movable latch 32 is connected to the concentrator 2, and one end of the movable latch 32 abutting against the adjusting inclined surface is provided with an inclined surface matched with the adjusting inclined surface, so that the patient presses the separating button 31 to transmit the provided driving force to the movable latch 32 through the inclined surface abutting against the separating button 31, and provides a vertically downward driving force on movable catch 32, which is further transmitted to infusion needle assembly 4 and enables separation of infusion needle assembly 4 from hub 2.

Referring to FIG. 9, a clamping groove (not shown) for accommodating infusion needle assembly 4 is formed in concentrator 2, clamp 22 is arranged on the clamping groove, clamp 22 is used for clamping infusion needle assembly 4, clamp 22 is arranged under movable clamp 32, and movable clamp 32 abuts against clamp 22, so that driving force generated by pressing separation button 31 is transmitted to movable clamp 32, movable clamp 32 abuts against infusion needle assembly 4 clamped by clamp 22 in a vertical downward direction, and clamp 22 and infusion needle assembly 4 are released from a clamping state, so that infusion needle assembly 4 can be separated from concentrator 2.

As shown in fig. 3, the release button 31 is disposed at one end inside the cover body and has a sleeve 311 and an adjusting rod 312, the sleeve 311 is hollow and has an adjusting inclined surface, the adjusting rod 312 is disposed at the middle of the sleeve 311, one end of the adjusting rod 312 is connected to the inner wall of the sleeve 311, the other end of the adjusting rod 312 abuts against the inner wall of the cover body 5, the first elastic component 33 is disposed between the adjusting rod 312 and the sleeve 311, the first elastic component 33 is sleeved on the adjusting rod 312, one end of the first elastic component 33 abuts against the inner wall of the sleeve 311, and the other end of the first elastic component 33 abuts against the inner wall of the cover body 5; the separating button 31 is provided with a button 313 pressed by a patient at one end arranged outside the cover body 5, the button 313 is abutted against the sleeve 311, driving force for abutting against the sleeve 311 can be generated by pressing the button 313, the driving force can be transmitted to the movable clamping bolt 32, so that the movable clamping bolt 32 has driving force facing downwards vertically, in addition, the first elastic component 33 can be compressed by pressing the button 313, the first elastic component 33 generates elastic force, the elastic force can enable the separating button 31 to return to the original position, the reuse of the transfusion needle booster can be ensured, the use cost is reduced, and the adjustment precision of the separating button 31 can also be ensured.

The middle part of the outer edge of the movable bolt 32 is also provided with a plurality of convex blocks 321 distributed along the circumferential direction of the movable bolt 32, the second elastic component 34 is sleeved on the movable bolt 32, one end of the second elastic component 32 is abutted against the convex blocks 321, and the other end of the second elastic component 34 is abutted against the inner wall of the concentrator 2. Therefore, the driving force generated by pressing the release button 31 is transmitted to the second elastic component 34 and generates elastic force, and the elastic force can push the movable clamping bolt 32 to enable the movable clamping bolt 32 to return to the original position, so that the infusion needle booster can be reused, the use cost is reduced, and the adjustment precision of the release button 31 is also ensured.

Referring to fig. 4 to 7, the housing 1 is vertically divided into an upper portion of the housing 1 and a lower portion of the housing 1 by the limiting hole 12, that is, the upper portion of the housing 1 is located above the limiting hole 12, the lower portion of the housing 1 is located below the limiting hole 12, the upper portion of the housing 1 is in a circular truncated cone shape, the lower portion of the housing 1 is in a cylindrical shape, and the upper portion of the housing 1 and the lower portion of the housing 1 are smoothly connected, that is, the cross-sectional area of the housing 1 from the top to the bottom is gradually increased and then maintained. The lower part of the shell 1 is provided with a side opening 13 communicated with the accommodating groove, and the side opening 13 is arranged at a position close to the limiting hole 12, extends downwards and is communicated with the bottom opening.

A third elastic component 6 is arranged between the concentrator 2 and the inner wall of the shell 1, the third elastic component 6 is sleeved on the concentrator 2, one end of the third elastic component 6 is abutted against the clamping tongue 21, and the other end of the third elastic component 6 is abutted against the inner wall of the upper part of the shell 1; the position of the third elastic component 6 is limited by the clamping tongue 21 on the upper portion of the shell 1 with the smaller cross-sectional area and the outer edge of the concentrator 2, the clamping tongue 21 can be clamped on the limiting hole 12 to compress the third elastic component 6, the third elastic component 6 can generate elastic force, after the clamping tongue 21 leaves the limiting hole 12 and enters the accommodating groove, the elastic force can push the concentrator 2 to move towards the vertical downward direction until the position of the opening at the bottom of the shell 1 is moved, therefore, the position moving consistency of the concentrator 2 in each use is ensured, and the position inserting consistency of the infusion needle component 4 into the skin is also ensured.

Referring to FIGS. 1, 3, 6 and 9, infusion needle assembly 4 comprises vertically disposed infusion needle 41 and clamping portion 42, clamping portion 42 is clamped by clamp 22, infusion needle 41 is disposed along a horizontal direction, and infusion needle 41 penetrates through a side opening of housing 1 and extends to the outside of housing 1, so that when concentrator 2 moves to a bottom opening, infusion needle assembly 4 contained in concentrator 2 can move along with concentrator 2, and infusion needle 41 disposed outside housing 1 can be inserted into the skin of a patient. By arranging the infusion needle 41 in the horizontal direction and extending to the outside of the housing 1, the patient can accurately align the infusion needle 41 with the position to be injected, and when the infusion needle assembly 4 moves to the bottom opening along with the concentrator 2, the infusion needle 41 can be accurately inserted into the position to be injected on the skin.

In this embodiment, the housing 1 is provided with two tongue-shaped spring pieces 11, the two tongue-shaped spring pieces 11 are symmetrically disposed on the upper portion of the housing 1, and the two limiting holes 12 are also symmetrically disposed on the housing 1, so that the latch 21 on the outer edge of the concentrator 2 can be firmly clamped in the limiting holes 12, and the latch 21 is prevented from accidentally falling off.

The working process of the infusion needle booster of the present invention is further described below:

clamping the clamping part 42 on the clamp 22, pulling the cover body 5 upwards to clamp the clamping tongue 21 at the outer edge of the concentrator 2 on the limiting hole 12, completing the assembly of the transfusion needle assembly 4 on the transfusion needle booster, pressing the transfusion needle booster with the transfusion needle assembly 4 on the skin of the transfusion needle 41 to be inserted, pressing the tongue-shaped elastic sheet 11, so that the concentrator 2 moves to the opening at the bottom, the transfusion needle 41 which penetrates out of the opening at the side of the shell 1 moves along with the concentrator 2, and inserted into the skin of a patient, the driving force of the push button 313 is transmitted to the movable latch 32 through the inclined surface abutting against the adjusting inclined surface of the sleeve 311, the movable latch 32 abuts against the infusion needle assembly 4 clamped by the clamp 22 in the vertical downward direction, the clamp 22 and the infusion needle assembly 4 are released from the clamping state, thereby enabling infusion needle assembly 4 to be disconnected from concentrator 2 and infusion needle assembly 4 to be disconnected from the infusion needle booster.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.

Claims

1. The utility model provides an infusion needle booster which characterized in that includes:

2. The infusion needle booster as claimed in claim 1, wherein the casing further comprises a cover body, the cover body is arranged at the top of the casing, the cover body is connected with the concentrator and can drive the concentrator to move towards the top of the casing, so that the clamping tongue is clamped on the limiting hole.

3. The infusion needle booster as claimed in claim 2, wherein a slot for accommodating the infusion needle assembly is provided in the concentrator, and a clamp is provided on the slot for clamping the infusion needle assembly.

4. The infusion needle booster as claimed in claim 3, wherein the separation assembly comprises a separation button and a movable bolt, the separation button penetrates through the cover body along a horizontal direction, an adjusting inclined surface is arranged at one end of the separation button arranged in the cover body, the movable bolt is arranged in the concentrator along a vertical direction, an inclined surface abutting against the adjusting inclined surface is arranged at one end of the movable bolt, the other end of the movable bolt is connected with the clamp, and a driving force for pressing the separation button is transmitted to the movable bolt and enables the clamp and the infusion needle assembly to release a clamping state.

5. The infusion needle booster as claimed in claim 4, wherein the separation assembly further comprises a first elastic assembly, the separation button arranged inside the cover body is sleeved with the first elastic assembly, one end of the first elastic assembly abuts against the inner wall of the separation button, the other end of the first elastic assembly abuts against the inner wall of the cover body, and an elastic force enabling the position of the separation button to be restored can be generated.

6. The infusion needle booster as claimed in claim 4, wherein a plurality of projections are further disposed on the outer edge of the movable clamping bolt and distributed along the circumferential direction of the movable clamping bolt.

7. The infusion needle booster as claimed in claim 6, wherein the separation assembly further comprises a second elastic assembly, the second elastic assembly is sleeved on the movable clamping bolt, one end of the second elastic assembly abuts against the bump, the other end of the second elastic assembly abuts against the inner wall of the concentrator, and an elastic force capable of restoring the position of the movable clamping bolt can be generated.

8. The infusion needle booster as claimed in claim 1, wherein a third elastic assembly is further disposed between the concentrator and the casing, the third elastic assembly is sleeved on the concentrator, one end of the third elastic assembly abuts against the latch, the other end of the third elastic assembly abuts against an inner wall of the upper portion of the casing, and an elastic force enabling the concentrator to move towards the bottom opening can be generated.

9. The infusion needle booster as claimed in claim 3, wherein the lower portion of the housing is opened with a side opening communicating with the accommodating groove, and the side opening is disposed at a position close to the limiting hole and extends downward and communicates with the bottom opening.

10. The infusion needle booster of claim 9, wherein the infusion needle assembly comprises an infusion needle and a clamping portion, the infusion needle is arranged in a horizontal direction, the infusion needle penetrates out of the side opening of the housing and extends to the outside of the housing, and the clamping portion is clamped by the clamp.