Sound production mechanism and injection pen
By setting sound-generating teeth inside the scale cylinder adjustment ring of the injection pen and setting a firing part on the side wall of the support cylinder, the sound is generated by the rotation of the scale cylinder striking the sound-generating teeth, which solves the problem of poor sound production caused by damage to the firing spring and achieves stable sound production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2026-04-10
AI Technical Summary
In existing injection pen sound-generating mechanisms, the firing spring is easily damaged during production and transportation, resulting in the inability to produce sound properly.
Sound-producing teeth are set inside the adjusting ring of the scale cylinder, and a firing part is set on the side wall of the support cylinder. The firing part is always pressed against the sound-producing teeth by the pusher. The sound is produced by striking the sound-producing teeth by the rotation of the scale cylinder, thus avoiding the use of springs.
Stable sound production was achieved, avoiding sound problems caused by damage to the spring and ensuring the normal use of the injection pen.
Smart Images
Figure CN224099759U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to injection pen technical field, concretely relates to a sound production mechanism and injection pen. BACKGROUND
[0002] Injection pen is a kind of medical instrument that can automatically inject liquid medicine in pre-filled syringe into patient's body, and can meet the needs of self-administration of user;The existing injection pen needs to be adjusted by patient when using, and sound production mechanism is arranged in pen body, including sound production tooth and firing spring to complete sound production when rotating scale cylinder, cooperate sound production mechanism to issue sound to prompt patient, but the existing sound production mechanism is usually arranged in pen body, including the sound production tooth and the firing spring to complete the sound production, since the firing spring is elastic piece, its elasticity needs to be strictly controlled in production process, to ensure that it can sound well, and the firing spring is prone to cracking in production or transportation, which leads to normal sound production.
[0003] Therefore, how to avoid the firing spring from not sounding well is a technical problem to be solved in the field.
[0004] It should be noted that the above information disclosed in the background section of the present application is only used to understand the background of the present application, and therefore, the above description is not considered as information of prior art. CONTENT OF THE UTILITY MODEL
[0005] The present application provides a sound production mechanism and injection pen.
[0006] In a first aspect, the present application provides a sound production mechanism, comprising: a scale cylinder, which is threadedly connected in a pen body, and the end of the scale cylinder is provided with an adjusting ring, the inner end face of the adjusting ring is arrayed with sound production teeth, and the adjusting ring is provided with a pushing piece; a support cylinder, which is inserted in the scale cylinder and positioned in circumferential position by a drug pushing mechanism, the side wall of the support cylinder is provided with a firing part, the firing part is adapted to be clamped between sound production teeth, and the end of the support cylinder is in abutment with the pushing piece, so that the firing part always abuts the sound production teeth, wherein: when the scale cylinder is rotated, the sound production teeth push the firing part, and when the protrusions of the sound production teeth rotate the firing part, the firing part hits the sound production teeth to produce sound.
[0007] In an alternative embodiment, the firing part comprises a firing ring, the firing ring is integrally arranged on the side wall of the support cylinder, and the end face of the firing ring is provided with a firing block, which is adapted to be clamped between sound production teeth.
[0008] In an alternative embodiment, the side wall of the firing block intersects with a side edge, so that the side wall of the firing block fits the side wall of the sound production teeth.
[0009] In an alternative embodiment, the end face of the firing ring is provided with a placement ring groove, and the pushing piece abuts the groove bottom of the placement ring groove.
[0010] In an alternative embodiment, the axis of the placement ring groove is provided with a placement pin, and the pushing piece is sleeved on the placement pin.
[0011] In an alternative embodiment, the end of the scale cylinder protrudes from the pen body, the adjusting ring is connected to the protruding end of the scale cylinder, and the diameter of the adjusting ring is greater than the diameter of the scale cylinder to form a cavity accommodating the firing part.
[0012] In an alternative embodiment, the sound-producing teeth and the inner wall of the adjusting ring are provided with an amplification interval, so that the sound wave generated by the firing part hitting the sound-producing teeth is amplified in the amplification interval.
[0013] In an alternative embodiment, one end of the adjusting ring is open, and an end cap is inserted into the open end; and the pushing piece is a cylindrical coil spring, one end of which abuts the end cap and the other end of which abuts the support cylinder, and the pushing piece is always in a compressed state.
[0014] In a second aspect, the embodiments of the present disclosure further provide a sound-producing mechanism, comprising: a scale cylinder, a step is arranged in the scale cylinder, and sound-producing teeth are arranged on the step of the scale cylinder; a support cylinder, which is inserted into the scale cylinder from the tail and always has a movement trend in the insertion direction, and a firing block is arranged on the side wall of the support cylinder, wherein the firing block is adapted to be lifted when the sound-producing teeth follow the scale cylinder to rotate, and to hit the sound-producing teeth to produce sound when the protrusion of the sound-producing teeth rotates over the firing block.
[0015] In a third aspect, the embodiments of the present disclosure further provide an injection pen, comprising: a pen body; the sound-producing mechanism described above, wherein the scale cylinder is threadedly connected in the pen body;
[0016] A medicine pushing mechanism is arranged in the pen body, and one end of the medicine pushing mechanism protrudes into the support cylinder and positions the circumferential position of the support cylinder.
[0017] The sound-producing mechanism and the injection pen have the following beneficial effects: the sound-producing teeth are arranged on the inner end face of the adjusting ring, the firing part is arranged on the side wall of the support cylinder, and the pushing piece makes the firing part always abut the sound-producing teeth; when the scale cylinder is rotated, the firing part is lifted and then hits the sound-producing teeth to produce sound, thereby avoiding the use of a spring sheet as a sound-producing piece and realizing stable sound production.
[0018] Other features and advantages of the present application will be set forth in the following description of the application, and in part will become apparent to those skilled in the art upon examination of the following or can be learned from practice of the present application. The objects and other advantages of the present application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
[0019] In order to make the above objects, features and advantages of the present application more obvious and easy to understand, the preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0021] Figure 1 A perspective view of an injection pen is provided for the embodiments of the present disclosure;
[0022] Figure 2 A cross-sectional view of a sound generating mechanism and an injection pen is provided for the embodiments of the present disclosure;
[0023] Figure 3 An exploded view of a medicine pushing mechanism is provided for the embodiments of the present disclosure.
[0024] In the drawings:
[0025] 1. Scale barrel; 11, adjusting ring; 11a, sound generating tooth; 11b, pushing piece; 11c, enlarged spacing; 11d, end cover;
[0026] 2. Support barrel; 21, firing part; 21a, firing ring; 21b, firing block; 21c, placing ring groove; 21d, placing pin;
[0027] 3. Pen body; 4, medicine pushing mechanism. DETAILED DESCRIPTION
[0028] In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the present application will be described clearly and completely in conjunction with the drawings. Obviously, the described embodiments are some embodiments of the present application, but not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0029] In this document, when it is mentioned that the first component is located on the second component, it can mean that the first component can be directly formed on the second component, or a third component can be interposed between the first component and the second component. In addition, in the drawings, in order to effectively describe the technical content, the thickness of the components can be exaggerated or reduced.
[0030] The terminology used herein is for the purpose of describing particular example configurations only and is not intended to be limiting. As used herein, the singular articles "a," "an," and "the" can be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order of performance. Additional or alternative steps can be employed.
[0031] As used herein, the phrases "in an embodiment," "according to an embodiment," "in some embodiments," and the like generally mean the particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of the present disclosure. Thus, appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment. As used herein, the term "for example" or "e.g." means "for the purpose of example, illustration, or description." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects, or designs.
[0032] It is found through research that the existing technology uses a firing pellet to produce sound, and the firing pellet is prone to damage during production and transportation, resulting in failure to produce sound normally, which is a problem and purpose to be solved by the utility model.
[0033] Based on the above research, the utility model embodiment provides a sound producing mechanism and an injection pen, which produce sound by setting a sound producing tooth on an end face and cooperating with a firing part capable of lifting to hit the sound producing tooth in an axial direction.
[0034] The defects of the above solutions are the results obtained by the utility model person after practice and careful research, and therefore, the discovery process of the above problems and the solutions proposed by the utility model for the above problems in this paper should be the contribution of the utility model person to the utility model in the process of the utility model.
[0035] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0036] Some embodiments of the utility model will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the embodiments described below and the features in the embodiments can be combined with each other.
[0037] Referring to Figures 1 to 3 , the embodiment shows a sound producing mechanism, comprising: a scale cylinder 1 threadedly connected in a pen body 3, an end of the scale cylinder 1 is provided with an adjusting ring 11, an inner end face of the adjusting ring 11 is arrayed with sound producing teeth 11a, and the adjusting ring 11 is internally provided with a pushing piece 11b; a support cylinder 2 is inserted in the scale cylinder 1 and positioned in a circumferential position by a propelling mechanism 4, a side wall of the support cylinder 2 is provided with a firing part 21, the firing part 21 is adapted to be clamped between the sound producing teeth 11a, and an end of the support cylinder 2 is in abutment with the pushing piece 11b, so that the firing part 21 always abuts against the sound producing teeth 11a, wherein: when the scale cylinder 1 is rotated, the sound producing teeth 11a push the firing part 21, when a protrusion of the sound producing teeth 11a rotates the firing part 21, the firing part 21 hits the sound producing teeth 11a to produce sound; in short, the sound producing mechanism and the injection pen realize stable sound production by setting the sound producing teeth 11a on the inner end face of the adjusting ring 11, setting the firing part 21 on the side wall of the support cylinder 2, and cooperating with the pushing piece 11b to make the firing part 21 always abut against the sound producing teeth 11a, when the scale cylinder 1 is rotated, the firing part 21 is lifted and then resets to hit the sound producing teeth 11a to produce sound, avoiding the use of a spring sheet as a sound producing piece.
[0038] Referring to Figures 2 to 3 In some embodiments, the firing part 21 comprises a firing ring 21a; the firing ring 21a is integrally provided on the side wall of the support cylinder 2, an end face of the firing ring 21a is provided with a firing block 21b, the firing block 21b is adapted to be clamped between the sound producing teeth 11a; in short, the firing block 21b is provided on the end face of the firing ring 21a, when the sound producing teeth 11a and the firing block 21b are relatively rotated, cooperation is achieved.
[0039] Referring to Figures 2 to 3 In some embodiments, a side wall of the firing block 21b intersects with an edge, so that the side wall of the firing block 21b fits the side wall of the sound producing teeth 11a; in short, the side wall of the firing block 21b can fit the side wall of the adjacent sound producing teeth 11a, so as to increase the hitting distance of the firing block 21b and improve the volume of sound.
[0040] Referring to Figures 2 to 3 In some embodiments, an end face of the firing ring 21a is provided with a placing ring groove 21c, and the pushing piece 11b abuts against the groove bottom of the placing ring groove 21c; in order to ensure that the firing block 21b can smoothly hit the sound producing teeth 11a, the firing ring 21a needs to be able to stably abut against the sound producing teeth 11a downward, therefore, the placing ring groove 21c is provided on the end face of the firing ring 21a, and the pushing piece 11b is clamped in the placing ring groove 21c, so as to avoid the disengagement of the pushing piece 11b from the firing ring 21a.
[0041] Referring toFigures 2 to 3 In some embodiments, the axis of the placement ring groove 21c is provided with a placement pin 21d, and the pusher 11b is sleeved on the placement pin 21d; in short, the placement pin 21d is arranged in the placement ring groove 21c to sleeve the pusher 11b, which further ensures that the pusher 11b is in good abutment with the firing ring 21a.
[0042] Referring to Figures 2 to 3 In some embodiments, the end of the scale barrel 1 protrudes from the pen body 3, the adjusting ring 11 is connected to the protruding end of the scale barrel 1, and the diameter of the adjusting ring 11 is greater than that of the scale barrel 1 to form a cavity to accommodate the firing part 21; in short, the adjusting ring 11 is arranged to enable the patient to easily rotate the scale barrel 1, and the diameter of the adjusting ring 11 is greater than that of the scale barrel 1 to form a larger cavity in the adjusting ring 11 to accommodate the firing ring 21a, thereby ensuring stable sound production.
[0043] Referring to Figure 2 In some embodiments, the sound production teeth 11a and the inner wall of the adjusting ring 11 are provided with an enlarged spacing 11c, so that the sound waves generated by the firing part 21 striking the sound production teeth 11a are amplified in the enlarged spacing 11c; in short, the sound production teeth 11a are not connected to the inner wall of the adjusting ring 11, so that the vibration generated by the sound production teeth 11a being struck by the firing part 21 is not directly transmitted to the side wall of the adjusting ring 11, thereby ensuring that more vibration is in the cavity of the adjusting ring 11, repeatedly amplified, and the stability of sound production is improved.
[0044] Referring to Figures 2 to 3 In some embodiments, one end of the adjusting ring 11 is provided with an opening, and an end cover 11d is inserted into the opening; the pusher 11b is a cylindrical spiral spring, one end of which abuts against the end cover 11d, and the other end abuts against the support barrel 2, and the pusher 11b is always in a compressed state; in short, the pusher 11b is sleeved on the placement pin 21d, one end of which abuts against the end cover 11d, and the other end abuts against the bottom of the placement ring groove 21c, thereby ensuring that the firing ring 21a always abuts against the sound production teeth 11a.
[0045] Referring to Figures 1 to 3 The embodiment also provides a sound production mechanism, which comprises: a scale barrel 1, which is internally provided with a step, and sound production teeth 11a are arranged on the step of the scale barrel 1; a support barrel 2, which is inserted into the scale barrel 1 from the tail and always has a movement trend in the direction of insertion, and a firing block 21b is arranged on the side wall of the support barrel 2; wherein the firing block 21b is adapted to lift when the sound production teeth 11a follow the scale barrel 1 to rotate, and strike the sound production teeth 11a to produce sound when the protrusion of the sound production teeth 11a rotates over the firing block 21b; in short, through the axial movement of the support barrel 2 and the rotation of the scale barrel 1, the firing block 21b stably strikes the sound production teeth 11a to produce sound.
[0046] Referring to Figures 1 to 3 The embodiment also provides an injection pen, comprising: a pen body 3; the sound generating mechanism described above, the scale barrel 1 is screwed in the pen body 3; the medicine pushing mechanism 4 is arranged in the pen body 3, and one end of the medicine pushing mechanism 4 extends into the support barrel 2 and positions the circumferential position of the support barrel 2; in short, the tail of the medicine pushing mechanism 4 is connected with the support barrel 2 in the form of key groove and key block, so that the support barrel 2 can only move in the axial direction.
[0047] In the description of the utility model embodiments, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.
[0048] In the description of the utility model, it should be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. The indicated device or element must have a particular orientation, a particular orientation and operation, therefore the above-discussed first element, component, area, layer or section can be referred to as the second element, component, area, layer or section without departing from the teaching of the example embodiment.
[0049] Spatially relative terms, such as "inner", "outer", "below", "below", "lower", "above", "upper", and the like, can be used herein for ease of describing an element or feature's relationship to another element or feature as illustrated in the figures. In addition to the orientation depicted in the figures, the spatially relative terms can be intended to encompass different orientations of the device in use or operation. For example, if the device in the figure is turned over, an element described as "below" or "under" the other element or feature will be oriented "above" the other element or feature. Therefore, the example term "below" can encompass both the above and below orientations. The device can be oriented in other ways (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein are interpreted accordingly.
[0050] In the above discussion, unless otherwise stated, the terms "about", "approximately", "substantially" and the like, when used in describing a numerical value, mean a variation of + / - 10% of the value.
[0051] With the above ideal embodiments according to the present application as the inspiration, through the above description, the relevant staff can definitely make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and must be determined according to the scope of claims.
Claims
1. A sound producing mechanism, characterized by, The sound producing mechanism comprises: a scale cylinder (1) threadedly connected in a pen body (3), an end of the scale cylinder (1) being provided with an adjusting ring (11), an inner end surface of the adjusting ring (11) being provided with sound producing teeth (11a), and the adjusting ring (11) being provided with a pushing piece (11b) inside; a supporting cylinder (2) inserted in the scale cylinder (1) and positioned in a circumferential position by a pushing mechanism (4), a side wall of the supporting cylinder (2) being provided with a firing part (21) adapted to be clamped between the sound producing teeth (11a), and an end of the supporting cylinder (2) abutting against the pushing piece (11b) to make the firing part (21) always abut against the sound producing teeth (11a), wherein when the scale cylinder (1) is rotated, the sound producing teeth (11a) push the firing part (21), and when a protrusion of the sound producing teeth (11a) rotates the firing part (21), the firing part (21) hits the sound producing teeth (11a) to produce sound.
2. The sound producing mechanism according to claim 1, wherein the firing part (21) comprises a firing ring (21a); the firing ring (21a) is integrally provided on the side wall of the supporting cylinder (2), and an end surface of the firing ring (21a) is provided with a firing block (21b) adapted to be clamped between the sound producing teeth (11a).
3. The sound producing mechanism according to claim 2, wherein a side wall of the firing block (21b) intersects with an edge to make the side wall of the firing block (21b) fit the side wall of the sound producing teeth (11a).
4. The sound producing mechanism according to claim 3, wherein an end surface of the firing ring (21a) is provided with a placing ring groove (21c), and the pushing piece (11b) abuts against the groove bottom of the placing ring groove (21c).
5. The sound producing mechanism according to claim 4, wherein an axis of the placing ring groove (21c) is provided with a placing pin (21d), and the pushing piece (11b) is sleeved on the placing pin (21d).
6. The sound producing mechanism according to claim 1, wherein an end of the scale cylinder (1) extends out of the pen body (3), the adjusting ring (11) is connected to the extended end of the scale cylinder (1), and the diameter of the adjusting ring (11) is greater than that of the scale cylinder (1) to form a cavity accommodating the firing part (21).
7. The sound producing mechanism according to claim 5, wherein the sound producing teeth (11a) and the inner wall of the adjusting ring (11) are provided with an amplification interval (11c) to make the sound wave produced by the firing part (21) hitting the sound producing teeth (11a) be amplified in the amplification interval (11c).
8. The sound producing mechanism according to claim 1, wherein an end of the adjusting ring (11) is provided with an opening, and an end cover (11d) is inserted in the opening, and the pushing piece (11b) is a cylindrical coil spring, one end of which abuts against the end cover (11d) and the other end thereof abuts against the supporting cylinder (2), and the pushing piece (11b) is always in a compressed state.
9. A sound producing mechanism characterized by comprising: The sound producing mechanism comprises: A scale cylinder (1) is provided with a step, and sound teeth (11a) are arranged on the step of the scale cylinder (1); A supporting cylinder (2) is inserted into the scale cylinder (1) from the tail, and always has a movement trend towards the insertion direction, and a firing block (21b) is arranged on the side wall of the supporting cylinder (2), wherein; The firing block (21b) is adapted to be lifted when the sound teeth (11a) rotate with the scale cylinder (1), and to hit the sound teeth (11a) when the protrusion of the sound teeth (11a) rotates over the firing block (21b).
10. An injection pen characterized in that Comprise: A pen body (3); The sound generating mechanism according to any one of claims 1-9, wherein the scale cylinder (1) is threadedly connected in the pen body (3); A medicine pushing mechanism (4) is arranged in the pen body (3), and one end of the medicine pushing mechanism (4) extends into the supporting cylinder (2) and positions the circumferential position of the supporting cylinder (2).