CN215309241U - Anti-falling cooperative separation type pen cap suitable for self-administration device - Google Patents

Abstract

The utility model relates to an anti-falling cooperative separation type pen cap suitable for a self-administration device, which comprises a pen cap body, wherein demolding holes are distributed at the bottom of the pen cap body, a storage sleeve is arranged in the pen cap body, a connection limiting assembly extends upwards from the storage sleeve, the connection limiting assembly at least comprises a pair of connection guide sheets distributed in a mirror image mode, a limiting strip is arranged on the inner side of each connection guide sheet, and an auxiliary blocking assembly is arranged around each demolding hole. Therefore, the safety helmet can be guided and positioned by relying on the existence of the connecting guide sheet during assembly, and the safety helmet can smoothly enter the storage sleeve. The limiting strip can be tightly attached to the rear end of the safety helmet after being combined with the PFS assembly, and the safety helmet is smoothly taken out when the pen cap is separated from the self-administration device, so that the cooperative separation is realized. Be provided with supplementary subassembly that blocks, can prevent that the safety helmet accident from dropping in the drawing of patterns hole.

Description

Anti-falling cooperative separation type pen cap suitable for self-administration device

Technical Field

The utility model relates to a pen cap suitable for a self-administration device and used for shielding the front end of a PFS (pulse frequency synthesizer) assembly, in particular to an anti-falling cooperative separation type pen cap suitable for the self-administration device.

Background

Currently, in order to facilitate users to realize independent and convenient self-administration therapy, self-administration systems or devices are popular. For the convenience of understanding, the automatic injector is mainly designed to have a disposable function in view of safety in use and in order to avoid secondary abuse.

The existing disposable automatic injector has very complex design principle, leads to a plurality of parts which are generally more than 15, so the reliability is not high, the assembly difficulty is large, and the final product cost is too high.

CN110237366A discloses a medical injection device, which comprises an outer barrel and a pen cap, one end of the outer barrel is provided with a detachable medicine bin, a replaceable standard card type medicine bottle is arranged in the medicine bin, one end of the inner part of the outer barrel close to the medicine bin is provided with a fixed sleeve, the inner axial movement of the fixed sleeve is provided with a push rod seat, the inner part of the push rod seat is provided with a transmission ring which can be meshed with the end part of a transmission rod, the outer side of the transmission rod is sleeved with a ratchet ring which can axially slide, one end face of the ratchet ring is in one-way meshing with the inner part of the outer barrel, the other end of the ratchet ring is axially provided with a first spring, one end of the push rod seat is axially provided with a push rod seat spring which is propped against the outer barrel, and one end of a push rod penetrates through the push rod seat to stretch into the standard card type medicine bottle to be connected with a push block.

CN109999272A discloses a disposable adjustable injection device for insulin injection, which comprises a protective cover, a disposable needle, a pen core sleeve, a main body shell, a pen core and an adjusting component, one end of the main body shell is provided with a second boss, the outside of the second boss is provided with a refill sleeve, one end of the pencil lead sleeve is provided with a thread groove, the external thread of the second boss is in threaded connection with the thread groove, the other end of the refill sleeve is provided with a first boss, the outside of the first boss is connected with a disposable needle head through threads, a steel needle is inserted in the disposable needle head, a pen core is arranged in the pen core sleeve, a protective cover is sleeved outside the pen core sleeve, the other end of main body cover is provided with adjusting part, main body cover's internally mounted has fixed sleeve, fixed sleeve's one end outside protrusion has flange portion.

CN102264417A discloses an injection device comprising: a long housing; a container carrier having a medicament container to which a needle is mounted; a puncture device comprising a separation sleeve, a preloaded puncture spring device and a puncture holding device, wherein said preloaded puncture spring device is capable of acting on said separation sleeve and thereby on said container carrier for a sliding movement of said container and needle, and said puncture holding device is capable of holding said puncture spring device in a loaded state; injection means comprising a plunger rod, pre-loaded injection spring means and injection retaining means, wherein the plunger rod is arranged to act on a stopper in the medicament container, the pre-loaded injection spring means is adapted to act on the plunger rod such that the stopper is displaced within the container, and the injection retaining means is adapted to retain the injection spring means in a loaded state; retraction means comprising a preloaded retraction spring and retraction holding means, wherein the preloaded retraction spring is arranged to act on the separation sleeve and thereby on the container carrier, and the retraction holding means is capable of holding the retraction spring in a loaded state; a puncture sequence initiating means capable of acting on a puncture trigger means arranged on said separation cannula for disconnecting said puncture holding means; an injection trigger means provided on said separation sleeve and capable of disconnecting said injection holding means to initiate an injection sequence when the separation sleeve and the plunger rod are moved to a specific position; and retraction triggering means arranged on said separation sleeve and capable of disconnecting said retraction holding means for initiating needle retraction when said plunger rod has been moved to a certain position; characterized in that the device further comprises damping means comprising a compartment containing a volume of a highly viscous liquid and being partly defined by the outer surface of the plunger rod and the inner surface of the cap, wherein the compartment is arranged with a channel through which the liquid is forced only upon initiation of the injection sequence, such that the volume within the compartment decreases with movement of the plunger rod in the container during the entire injection sequence and thereby damping shear forces are generated.

Meanwhile, the automatic injector disclosed in combination with 202011110579.9 comprises a body (1), a needle protecting cover (2), a push rod (3), a sound tube (4), an inner tube (5), a release ring (6), a driving elastic element and a reset elastic element;

a needle cylinder fixing structure for fixing the needle cylinder (9) is arranged in the shell (1), and an opening for the needle head (91) to extend out is formed in the front end of the shell (1);

the release ring (6) and the needle shield (2) are sequentially arranged on the inner side of the shell (1) in a sliding manner from the rear end to the front end, the needle shield (2) can extend out of the front end of the shell (1) and can slide towards the rear end relative to the shell (1) and push the release ring (6), and the reset elastic piece acts on the release ring (6) and drives the release ring (6) to push the needle shield (2) to slide towards the front end of the shell (1); the shell (1) is provided with a needle shield limiting structure for limiting the forward sliding distance of the needle shield (2) relative to the shell (1);

the push rod (3) is arranged in the shell (1) in an axially sliding mode, the front end of the push rod (3) is used for pushing a piston (93) in the needle cylinder (9), the driving elastic piece acts on the push rod (3) and drives the push rod (3) to slide towards the front end of the needle cylinder (9), and a push rod limiting structure is arranged on the periphery of the push rod (3);

the sounding cylinder (4) is sleeved on the periphery of the push rod (3) in an axially sliding manner, the driving elastic piece acts on the sounding cylinder (4) and drives the sounding cylinder (4) to slide towards the rear end of the shell (1), the sounding cylinder (4) is provided with a push rod limiting and matching structure, and a sounding cylinder limiting structure is arranged between the sounding cylinder (4) and the inner tube (5);

the inner pipe (5) is fixed in the shell (1) and sleeved on the periphery of the sounding cylinder (4), the release ring (6) is sleeved on the periphery of the inner pipe (5) in a sliding mode, the inner pipe (5) is provided with a first clamping clip (55) capable of elastically moving along the radial direction, and the first clamping clip (55) is deflected outwards along the radial direction under the action of self elasticity;

first clamping (55) can be in along radial inside skew and pass through under the limiting displacement of the inner wall of release ring (6) the spacing cooperation structure of push rod with the mutual joint of push rod limit structure is spacing, it can restrict under the supporting action of the outer wall of push rod (3) to sound a section of thick bamboo (4) with the relative slip of inner tube (5), push rod (3) can break away from behind the preset distance to the front end slip to sound a section of thick bamboo limit knot's support.

The existing conventional self-administration device such as an automatic injector and the like has the following problems after the tail end of the self-administration device is pulled out by adopting a pen cap:

1. the pen cap and the safety cap need to be pulled out in batches, so that smooth use is affected.

2. The safety cap easily drops from the demoulding hole on the pen cap, and the overall recovery is influenced.

3. The cap for brush is the cylinder structure conventionally, rolls easily on the desktop and drops, influences follow-up collection.

4. The appearance of the pen cap is too smooth, the pulling-out and force application are not convenient, and the pen cap is easy to slip.

In view of the above-mentioned drawbacks, the present inventors have made active research and innovation to create a drop-proof cooperative separation pen cap suitable for a self-administration device, so that the pen cap has industrial utility value.

SUMMERY OF THE UTILITY MODEL

To solve the above technical problems, an object of the present invention is to provide an anti-drop cooperative separation type pen cap suitable for a self-administration device.

The utility model discloses an anti-falling cooperative separation type pen cap suitable for a self-administration device, which comprises a pen cap body, wherein demolding holes are distributed at the bottom of the pen cap body, wherein: this internal storage sleeve that is provided with of cap for brush, storage sleeve upwards extends has linking spacing subassembly, linking spacing subassembly includes a pair of linking guide piece that is the mirror image and distributes at least, the inboard that links up the guide piece is provided with spacing, be provided with the supplementary subassembly that blocks around the drawing of patterns hole.

Further, the dropping-prevention cooperative separation type pen cap applicable to the self-administration device is characterized in that a reinforcing rib is arranged at the joint of the storage sleeve and the pen cap body.

Further, the anti-dropping cooperative and separate pen cap for a self-administration device as described above, wherein the top end of the engagement guide piece is provided with a circular arc chamfer.

Further, the anti-dropping cooperative and separable pen cap suitable for the self-administration device is described above, wherein the limiting strip is a transverse barrier strip, and a guide inclined plane is arranged at the upper end of the transverse barrier strip.

Furthermore, the anti-dropping cooperative-separation pen cap suitable for the self-administration device is characterized in that the auxiliary blocking assembly is a plurality of auxiliary blocking pieces, and the auxiliary blocking pieces are four rectangular pieces which are distributed in a cross-shaped corresponding manner; or the auxiliary retaining pieces are two rectangular pieces which are distributed in a mirror image manner; or, the auxiliary separation blades are two semicircular plates which are distributed in a mirror image mode.

Further, the anti-falling cooperative separation type pen cap suitable for the self-administration device is described above, wherein the outer side of the pen cap body is provided with an anti-rolling plane.

Furthermore, the anti-dropping cooperative-separation type pen cap suitable for the self-administration device is characterized in that a plurality of anti-skidding mechanisms are arranged on the outer side of the pen cap body, and each anti-skidding mechanism is a limiting groove.

Still further, the anti-dropping cooperative separation type pen cap suitable for the self-administration device is characterized in that the limiting grooves are arranged at equal intervals.

By the scheme, the utility model at least has the following advantages:

1. rely on linking the existence of guide piece during the assembly, can realize a guide location to the safety helmet, let the safety helmet enter into smoothly and accomodate in the cover.

2. The limiting strip can be tightly attached to the rear end of the safety helmet after being combined with the PFS assembly, and the safety helmet is smoothly taken out when the pen cap is separated from the self-administration device, so that the cooperative separation is realized.

3. Be provided with supplementary subassembly that blocks, can prevent that the safety helmet accident from dropping in the drawing of patterns hole, can effectively avoid using the back as medical waste's safety helmet scatter, reduce medical treatment and retrieve personnel's work load and can not appear retrieving and omit, avoid by improper reutilization.

4. The overall structure is simple, the conventional pen cap can be simply transformed, and the universality is good.

5. The inner space of the existing self-administration device can be effectively utilized, the placing space of the inner assembly cannot be occupied, and the self-administration device is convenient to implement.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

Fig. 1 is a schematic view of the overall structure of a cooperative separation type pen cap.

Fig. 2 is a partial cross-sectional schematic view of a cooperative breakaway pen cap.

Fig. 3 is a sectional view of the cooperative separation type cap drawn out of the safety cap.

The meanings of the reference symbols in the drawings are as follows.

1 cap body 2 demoulding hole

3 accomodate cover 4 and link up guide piece

5 spacing 6 strengthening ribs

7 guide inclined plane 8 rectangular sheet

9 anti-rolling plane 10 anti-skid mechanism

11 safety helmet

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

The anti-drop cooperative separation type pen cap suitable for the self-administration device as shown in fig. 1 to 3 comprises a pen cap body 1, and in consideration of the need of demolding during actual manufacturing and molding, demolding holes 2 are distributed at the bottom of the pen cap body 1, which is distinctive in that: be provided with in cap for brush body 1 and accomodate cover 3, can effectively accomodate the subsidiary safety helmet 11 of PFS subassembly in the self-administration device after the assembly finishes, simultaneously, for the ease that cap for a brush carries out suitable spacing combination to safety helmet 11, the separation in coordination during convenient to use accomodates cover 3 upwards extends and has linking spacing subassembly, links up spacing subassembly and includes a pair of linking guide piece 4 that is the mirror image and distributes at least. And, the inboard that links up guide piece 4 is provided with spacing strip 5. The stop strip 5 can be made to catch the edge of the helmet 11. In order to avoid the safety cap 11 from being accidentally detached from the ejection hole 2 in view of the cooperative separation of the safety cap 11 during the extraction of the pen cap, the present invention further provides an auxiliary blocking assembly around the ejection hole 2. Thus, the bottom of the safety helmet 11 can be properly lifted and limited, the conduction area of the demolding hole 2 is reduced as much as possible, and the safety helmet 11 is stably stored.

In a preferred embodiment of the present invention, in order to enhance the firmness of the joint between the storage sleeve 3 and the pen cap body 1 in the safety cap 11 and avoid cracking caused by improper force during insertion, a reinforcing rib 6 is disposed at the joint between the storage sleeve 3 and the pen cap body 1. Meanwhile, the top end of the connecting guide piece 4 is provided with a circular arc chamfer. Thus, the safety helmet 11 is not punctured by burrs, and the like on the surface during the insertion and combination.

Further, the limiting strip 5 adopted by the utility model is a transverse barrier strip, and the upper end of the transverse barrier strip is provided with a guide inclined plane 7. Thus, during actual assembly, the transverse bars are slidably fastened to the edge of the helmet 11 under the abdicating action of the guide inclined planes 7, so that the bottoms of the transverse bars are in fastening contact with the edge of the helmet 11.

In order to effectively block the demolding hole 2 in combination with practical implementation, the auxiliary blocking assembly is a plurality of auxiliary blocking sheets. Specifically, the auxiliary blocking pieces are four rectangular pieces 8 which are distributed in a cross-shaped corresponding manner. Alternatively, the auxiliary baffle is two rectangular pieces 8 which are distributed in a mirror image manner. Meanwhile, two semi-circular sheets distributed in a mirror image mode can be adopted to form the auxiliary blocking sheet. During use, the helmet 11 may be prevented from falling from the knock-out hole 2. In this way, the uniform collection process of the helmet 11 is facilitated.

Still further, considering that the pen cap can be smoothly and transversely placed on a planar object such as a desktop in daily life, unnecessary rolling is avoided, accidental falling is avoided, and the anti-rolling plane 9 is arranged on the outer side of the pen cap body 1.

Meanwhile, the pen cap can be conveniently pulled out during use, the pen cap can be smoothly separated when appropriate force is applied, a plurality of anti-skidding mechanisms 10 are arranged on the outer side of the pen cap body 1, and the anti-skidding mechanisms 10 are limiting grooves. Therefore, the friction force between the pen cap and the finger contact surface can be increased, the pen cap is not easy to slip and loosen, and the pen cap cannot be scattered accidentally during the pulling-out process. Certainly, in order to have better contact hand feeling, the limiting grooves can be arranged at equal intervals.

The utility model has the following advantages by the aid of the character expression and the accompanying drawings:

1. rely on linking the existence of guide piece during the assembly, can realize a guide location to the safety helmet, let the safety helmet enter into smoothly and accomodate in the cover.

2. The limiting strip can be tightly attached to the rear end of the safety helmet after being combined with the PFS assembly, and the safety helmet is smoothly taken out when the pen cap is separated from the self-administration device, so that the cooperative separation is realized.

3. Be provided with supplementary subassembly that blocks, can prevent that the safety helmet accident from dropping in the drawing of patterns hole, can effectively avoid using the back as medical waste's safety helmet scatter, reduce medical treatment and retrieve personnel's work load and can not appear retrieving and omit, avoid by improper reutilization.

4. The overall structure is simple, the conventional pen cap can be simply transformed, and the universality is good.

5. The inner space of the existing self-administration device can be effectively utilized, the placing space of the inner assembly cannot be occupied, and the self-administration device is convenient to implement.

Furthermore, the indication of the orientation or the positional relationship described in the present invention is based on the orientation or the positional relationship shown in the drawings, and is only for convenience of describing the present invention and simplifying the description, but does not indicate or imply that the indicated device or configuration must have a specific orientation or be operated in a specific orientation configuration, and thus, should not be construed as limiting the present invention.

The terms "primary" and "secondary" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "primary" or "secondary" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Also, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "disposed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other or mutually interacted. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. And it may be directly on the other component or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings, which are used for convenience in describing the utility model and to simplify the description, and do not indicate or imply that the device or component being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the utility model.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. Anti falling is disconnect-type cap in coordination suitable for self-administration device, including the cap for brush body, the bottom distribution of cap for brush body has demoulding hole, its characterized in that: this internal storage sleeve that is provided with of cap for brush, storage sleeve upwards extends has linking spacing subassembly, linking spacing subassembly includes a pair of linking guide piece that is the mirror image and distributes at least, the inboard that links up the guide piece is provided with spacing, be provided with the supplementary subassembly that blocks around the drawing of patterns hole.

2. A drop-resistant cooperative-separation pen cap suitable for use in a self-administration device according to claim 1, wherein: the joint of the storage sleeve and the pen cap body is provided with a reinforcing rib.

3. A drop-resistant cooperative-separation pen cap suitable for use in a self-administration device according to claim 1, wherein: and the top end of the connecting guide sheet is provided with an arc chamfer.

4. A drop-resistant cooperative-separation pen cap suitable for use in a self-administration device according to claim 1, wherein: the limiting strips are transverse barrier strips, and guide inclined planes are arranged at the upper ends of the transverse barrier strips.

5. A drop-resistant cooperative-separation pen cap suitable for use in a self-administration device according to claim 1, wherein: the auxiliary blocking assemblies are a plurality of auxiliary blocking pieces, and the auxiliary blocking pieces are four rectangular pieces which are distributed in a cross-shaped corresponding mode; or the auxiliary retaining pieces are two rectangular pieces which are distributed in a mirror image manner; or, the auxiliary separation blades are two semicircular plates which are distributed in a mirror image mode.

6. A drop-resistant cooperative-separation pen cap suitable for use in a self-administration device according to claim 1, wherein: the outer side of the pen cap body is provided with an anti-rolling plane.

7. A drop-resistant cooperative-separation pen cap suitable for use in a self-administration device according to claim 1, wherein: the pen cap is characterized in that a plurality of anti-skidding mechanisms are arranged on the outer side of the pen cap body, and each anti-skidding mechanism is a limiting groove.

8. A drop-resistant cooperative-separation pen cap suitable for use in a self-medication delivery device according to claim 7, wherein: the limiting grooves are arranged at equal intervals.

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