A nozzle with locking function
By setting a groove limiting cavity on the nozzle frame and trigger module and using locking components, the problem of looseness of the trigger module and frame was solved, achieving a stable connection and sealing effect.
Patent Information
- Application Number
- CN202521824750.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-26
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-26
AI Technical Summary
In existing nozzles, the trigger module and frame are prone to loosening, leading to problems such as poor sealing or false triggering.
A first groove and a second groove are respectively set on the nozzle frame and the trigger module to form a limiting cavity, and the rotation of the trigger module is restricted by a locking component to ensure a stable connection.
A stable connection between the trigger module and the frame is achieved, preventing loosening and ensuring sealing and normal triggering function.
Smart Images
Figure CN224672976U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of nozzle technology, and in particular to a nozzle with a locking function. Background Technology
[0002] The applicant has designed a new type of trigger module, which is connected to the nozzle frame by a thread. Considering the possibility of loosening of the threaded connection, in order to avoid poor sealing or false triggering caused by loosening between the trigger module and the frame, the applicant has further designed the existing structure to solve the above-mentioned structural loosening problem.
[0003] Therefore, the technical problem with existing technologies lies in how to avoid loosening between the trigger module and the framework. Summary of the Invention
[0004] This application provides a nozzle with a locking function, which solves the technical problem of how to avoid loosening between the trigger module and the frame, and achieves the technical effect of a stable connection between the trigger module and the frame.
[0005] This application provides a nozzle with a locking function. The nozzle includes: a frame, the frame including a receiving portion having a receiving cavity, and a first groove provided on the receiving portion; a trigger module, the trigger module being at least partially disposed within the receiving cavity, and a second groove provided on the trigger module; in a first state, the second groove and the first groove are combined to form a limiting cavity; and a locking member, the locking member being located in the limiting cavity, a part of the locking member being located in the first groove, and another part of the locking member being located in the second groove, thereby restricting the rotation of the trigger module relative to the receiving portion by means of the locking member.
[0006] Preferably, at least one of the first and second slots is provided in multiples, and the multiple slots are spaced apart along the rotation direction of the trigger module; or there is a gap between at least one of the first and second slots and its corresponding locking part, so as to increase the probability that the first and second slots are in the first state.
[0007] Preferably, multiple first grooves are provided, and the multiple first grooves are spaced apart on the receiving part along the circumferential direction of the receiving cavity.
[0008] Preferably, at least one of the first and second grooves has a gap between itself and the locking member, and the direction of the gap is the rotation direction of the trigger module, so that the trigger module has rotational space relative to the receiving part.
[0009] Preferably, the first groove is disposed on the side of the receiving part near the receiving cavity, and the second groove is located on the side of the trigger module near the receiving part.
[0010] Preferably, at least one of the first and second grooves is provided with an inlet for inserting the locking element into the limiting cavity.
[0011] Preferably, the first tank is provided with an inlet, which is located at one of the outer peripheral surface, the outer end surface, and the junction area of the outer peripheral surface and the outer end surface of the receiving part.
[0012] Preferably, the trigger module includes: a base, of which two bases are provided to form the outline basis of the trigger module; a temperature sensing element, which is disposed between the two bases to limit the shrinkage of the trigger module's outline; and a retaining ring, which is disposed between the two bases to limit the expansion of the trigger module's outline; one or more retaining rings are provided, and the retaining rings cooperate with the temperature sensing element to define the positional relationship between the two bases; wherein, the second groove is provided with an insertion port, which is disposed on any surface of the base, and the insertion port is offset from the receiving portion along the extension end away from the first groove.
[0013] Preferably, the locking member is fixedly connected to at least one of the first and second grooves.
[0014] Preferably, the locking element is at least partially bonded, snapped, or welded to the limiting cavity.
[0015] Preferably, the locking element is spherical; or the locking element includes a locking body and a locking head, wherein the locking head and the locking body are integral or connected and fixed; the locking body and the locking head are respectively located in two grooves that make up the limiting cavity, and at least one of the locking body and the locking head is connected to its corresponding groove.
[0016] Unlike existing technologies, the advantages of this application are as follows: By constructing a limiting cavity by setting a first groove and a second groove on the receiving part and the trigger module respectively, when the locking member is placed in the limiting cavity, the rotation of the trigger module will cause the locking member to rotate. Because the locking member is restricted by the position of the first groove, the rotation of the trigger module relative to the receiving part is limited; or, when the trigger module rotates, the second groove rotates as well, and the rotation of the trigger module relative to the receiving part is limited by the position of the locking member. This solves the technical problem of how to avoid loosening between the trigger module and the frame, and achieves the technical effect of a stable connection between the trigger module and the frame. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the isometric structure of the nozzle with locking function in this application; Figure 2 This is a schematic diagram of the isometric explosion structure of the trigger module in this application; Figure 3 yes Figure 1 Enlarged structural diagram at point A; Figure 4 This is a top-view structural diagram of the nozzle in this application; Figure 5 This is a schematic diagram of the isometric structure of another nozzle with locking function in this application; Figure 6 yes Figure 5 Enlarged structural diagram at point B; Figure 7 This is a top-view structural diagram of another type of nozzle in this application; Figure 8 This is a top view schematic diagram of another locking structure in this application; Figure 9 This is a top view schematic diagram of another locking structure in this application.
[0018] Explanation of reference numerals in the attached figures: 100. Frame; 11. Receiving part; 11a. Outer peripheral surface; 11b. Outer end face; 111. First groove; 1111. Insertion entrance; 12. Receiving cavity; 200. Trigger module; 21. Seat body; 211. Upper part of seat body; 212. Lower part of seat body; 213. Snap ring groove; 214. Second groove; 215. Side of seat body; 22. Temperature sensing element; 23. First snap ring; 24. Second snap ring; 25. Snap spring; 26. Tightening element; 27. Rolling element; 300. Locking element; 31. Locking body; 32. Locking head. Detailed Implementation
[0019] The serial numbers assigned to components in this document, such as "first" and "second," are used solely to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used solely for the convenience of describing this application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0020] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0021] To better understand the above technical solutions, a detailed description of the technical solutions will be provided below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit the scope of this application.
[0022] This application provides a nozzle with a locking function, see reference. Figure 1 and Figure 5 The nozzle includes a frame 100, a trigger module 200, and a locking member 300. The frame 100 includes a receiving portion 11 with a receiving cavity 12 to receive the trigger module 200. The receiving portion 11 is provided with a first groove 111, and the trigger module 200 is provided with a second groove 214. The first groove 111 and the second groove 214 form a limiting cavity for accommodating the locking member 300. After the locking member 300 is inserted into the limiting cavity, it restricts the rotation of the trigger module 200 relative to the receiving portion 11 or limits the large range of rotation of the trigger module 200 relative to the receiving portion 11 (e.g., making the trigger module 200 rotate only within a range of ±3°), so that there is no excessive looseness between the trigger diaphragm and the frame 100.
[0023] In one embodiment, the frame 100 includes a receiving portion 11 having a receiving cavity 12, and a first groove 111 is provided on the receiving portion 11; a trigger module 200 is at least partially disposed within the receiving cavity 12, and a second groove 214 is provided on the trigger module 200; in a first state, the second groove 214 and the first groove 111 are combined to form a limiting cavity; and a locking member 300 is located in the limiting cavity, a part of the locking member 300 is located in the first groove 111, and another part of the locking member 300 is located in the second groove 214, thereby limiting the rotation of the trigger module 200 relative to the receiving portion 11 by the locking member 300.
[0024] Understandably, the first state is achieved by rotating the trigger module 200 along the helical direction of the threaded connection, causing the second groove 214 to rotate relative to the fixed first groove 111 until it is aligned. There are two reasons why the slight rotation of the trigger module 200 does not affect the nozzle's seal. First, at least one of the first groove 111 and the second groove 214 is provided in multiples, and the multiple grooves are spaced apart along the rotation direction of the trigger module 200. Alternatively, at least one of the first groove 111 and the second groove 214 is designed with ample space, that is, there is a gap between at least one of the first groove 111 and the second groove 214 and its corresponding locking member 300, in order to increase the probability that the first groove 111 and the second groove 214 are in the first state, so as to achieve alignment of the second groove 214 with the first groove 111 after a small rotation. Generally, the first state can be achieved within a rotation range of 90° (1 / 4 turn). In addition, by precisely designing the spiral and the axial depth into which the trigger module 200 needs to be placed in the receiving cavity 12, the first state can be achieved within a rotation range of 20° (1 / 18 turn). In one embodiment, refer to Figure 4 or Figure 7 Multiple first grooves 111 are provided, and the multiple first grooves 111 are spaced apart on the receiving portion 11 along the circumferential direction of the receiving cavity 12. In another embodiment, refer to Figure 8 The second groove 214 is designed with a gap relative to the locking member 300 so that the second groove 214 can accommodate the locking member 300 within a relatively wide angular range (e.g., 5°), facilitating convenient assembly of the locking member 300. The aforementioned wider angular range translates to a small change in axial distance, not affecting the nozzle's sealing performance. This gap also allows the trigger module 200 to not be completely confined, providing a self-adjusting range within the nozzle for better fit between the trigger module 200, the sealing member, and the sealing surface. Similarly, the first groove 111 can also be designed with a gap relative to the locking member 300. In another embodiment, refer to... Figure 9Multiple second grooves 214 are provided to accommodate the locking member 300 within a wider angular range (e.g., 25°). Of course, the three embodiments described above are not mutually exclusive; two or more embodiments can be combined to further reduce the alignment difficulty between the second groove 214 and the first groove 111, and reduce the rotation range required for the trigger module 200 to achieve the first state. Secondly, the helix of the threaded connection between the trigger module 200 and the frame 100 in this application has a small pitch; rotating 1 / 4 turn has little effect on the distance of the trigger module 200 in the axial direction of the nozzle, and rotating 1 / 18 turn has even less impact on the aforementioned axial distance. In one embodiment, with a pitch of 1.5mm, the axial change is 0.375mm for a 1 / 4 turn rotation and 0.083mm for an 1 / 18 turn rotation. This axial change has no impact on the nozzle that achieves sealing through the axial deformation of the seal. That is, the rotational adjustment made by the trigger module 200 to reach the first state does not affect the pressing and contact of the trigger module 200 with the seal (the core structure of the nozzle is that the trigger module 200 contacts the seal, and the seal contacts the sealing surface), nor does it affect the sealing of the surface to be sealed in the nozzle.
[0025] Trigger module 200, see reference Figure 2 A disassembleable / retractable structure is designed around the temperature sensing element 22 to provide support for the seal when the nozzle is in standby mode. The trigger module 200 includes a base 21, a temperature sensing element 22, and a retaining ring. The base 21 has two bases forming the outline of the trigger module 200, and the base 21 serves as the outer surface of the trigger module 200 for threaded connection with the receiving cavity 12. The temperature sensing element 22 is a temperature-sensing glass bulb, positioned between the two bases 21 (secured by the clamping member 26) to limit the shrinkage of the trigger module 200's outline. The retaining ring is positioned between the two bases 21 to limit the expansion of the trigger module 200's outline. One or more retaining rings and temperature sensing elements 22 are provided to define the positional relationship between the two bases 21. Designing multiple retaining rings is beneficial for more stable definition of the two bases 21. In one embodiment, the retaining rings include a first retaining ring 23 and a second retaining ring 24. The first retaining ring 23 and the second retaining ring 24 are respectively engaged with the upper part 211 and the lower part 212 of the base. The temperature sensing element 22 is set in the middle of the base 21. The engagement of the first retaining ring 23 and the second retaining ring 24 helps to stably define the position of the two bases 21. In addition to the above structure, a retaining spring 25 can be provided between the two bases 21 to make the entire trigger module 200 tend to retract. Specifically, the retaining spring 25 can be set in the area between the retaining ring and the temperature sensing element 22. For example, the retaining spring 25 is also in the retaining ring groove 213 where the second retaining ring 24 is located. The two ends of the retaining spring 25 are respectively attached to or connected to the two bases 21.
[0026] In one embodiment, reference Figure 3 The first groove 111 is disposed on the side of the receiving part 11 near the receiving cavity 12, and the second groove 214 is located on the side of the seat 21 near the receiving part 11. That is, the first groove 111 and the second groove 214 are two opposite surfaces of the receiving part 11 and the seat 21.
[0027] It is understood that, in order to insert the locking member 300, at least one of the first groove 111 and the second groove 214 is provided with an insertion port 1111 for inserting the locking member 300 into the limiting cavity. In one embodiment, refer to Figure 3 and Figure 6 The first groove 111 is provided with an inlet 1111. The inlet 1111 is located at one of the outer peripheral surface 11a, the outer end surface 11b, and the junction area of the outer peripheral surface 11a and the outer end surface 11b of the receiving portion 11. This structural design places the inlet 1111 on the outer surface of the receiving cavity 12, which facilitates the convenient insertion of the locking member 300 into the defined cavity. Preferably, the inlet 1111 is located on the outer end surface 11b of the receiving cavity 12. This design makes it convenient to insert the locking member 300 and prevents the locking member 300 from easily coming out. In another embodiment, the second groove 214 is provided with an inlet 1111. The inlet 1111 is located on any surface of the base 21, and the inlet 1111 is offset from the receiving portion 11 along its extension end away from the first groove 111; as shown in the reference Figure 2 The insertion port 1111 can be located on the side of the base 21, and the second groove 214 is constructed by drilling at an angle. This design facilitates the insertion of the locking member 300 between the two bases 21, so that there are no obvious marks on the outer contour of the entire nozzle, improving its aesthetics. At the same time, the above structural design also reduces the possibility of foreign objects entering the limiting cavity, preventing foreign objects from affecting the normal retraction of the trigger module 200 after triggering. In addition, it should be noted that the insertion port 1111 can also be partially located in the receiving part 11 and partially located on the base 21.
[0028] Locking component 300, reference Figure 4 This is used to connect or limit the first groove 111 and the second groove 214, thereby limiting the large-scale rotation of the trigger module 200. Preferably, the locking member 300 is spherical, and the locking member 300 is at least partially bonded, snap-fitted, or welded to the limiting cavity; and the spherical locking member 300 simplifies assembly by eliminating the need for a specific assembly direction. In one embodiment, refer to... Figure 9The locking component 300 includes a locking body 31 and a locking head, which are integral or connected and fixed together. The locking body 31 and the locking head are respectively located in two grooves forming the limiting cavity, and at least one of the locking body 31 and the locking head is connected to its corresponding groove. It can be understood that the cross-sectional area of the locking head is smaller than that of the locking body 31. Setting a locking head can reduce the size requirement of the second groove 214, that is, the cross-sectional area of the second groove 214 can be designed to be smaller, which is beneficial for setting multiple second grooves 214 on the base 21.
[0029] Regarding the relationship between the locking member 300 and the limiting cavity, the locking member 300 is fixedly connected to at least one of the first groove 111 and the second groove 214. This fixed connection can be achieved through bonding, snap-fitting, or welding. Specifically, in the first case, the locking member 300 is fixedly connected to the first groove 111 and there is a gap between it and the second groove 214. In this case, when the trigger module 200 rotates, the second groove 214 rotates accordingly. The position of the second groove 214 is restricted by the locking member 300, thus limiting the rotation of the trigger module 200 relative to the receiving portion 11. In the second case, the locking member 300 is fixedly connected to the second groove 214 and there is a gap between it and the first groove 111. In this case, when the locking member 300 is placed in the limiting cavity, the rotation of the trigger module 200 will cause the locking member 300 to rotate. Because the position of the locking member 300 is restricted by the first groove 111, the rotation of the trigger module 200 relative to the receiving portion 11 is limited. In the third case, the locking element 300 is fixedly connected to the two slots respectively.
[0030] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.
[0031] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.
Claims
1. A nozzle with a locking function, characterized in that, The nozzle includes: a frame (100) including a receiving portion (11) having a receiving cavity (12) and a first groove (111) thereon; a trigger module (200) at least partially disposed within the receiving cavity (12) and a second groove (214) thereon; in a first state, the second groove (214) and the first groove (111) are combined to form a limiting cavity; and a locking member (300) located in the limiting cavity, a portion of the locking member (300) being located in the first groove (111) and another portion of the locking member (300) being located in the second groove (214), thereby restricting the rotation of the trigger module (200) relative to the receiving portion (11) by means of the locking member (300).
2. The nozzle according to claim 1, characterized in that, At least one of the first groove (111) and the second groove (214) is provided in multiples, and the multiple grooves are spaced apart along the rotation direction of the trigger module (200); or there is a gap between at least one of the first groove (111) and the second groove (214) and a portion of its corresponding locking member (300) to increase the probability that the first groove (111) and the second groove (214) are in the first state.
3. The nozzle according to claim 2, characterized in that, Multiple first grooves (111) are provided, and multiple first grooves (111) are spaced apart on the receiving part (11) along the circumferential direction of the receiving cavity (12).
4. The nozzle according to claim 1, characterized in that, The first groove (111) is disposed on the side of the receiving part (11) near the receiving cavity (12), and the second groove (214) is located on the side of the trigger module (200) near the receiving part (11).
5. The nozzle according to claim 1, characterized in that, At least one of the first groove (111) and the second groove (214) is provided with an inlet (1111) for the locking member (300) to be inserted into the limiting cavity.
6. The nozzle according to claim 5, characterized in that, The first groove (111) is provided with an inlet (1111), which is located at one of the outer peripheral surface (11a), the outer end surface (11b) of the receiving part (11), and the junction area of the outer peripheral surface (11a) and the outer end surface (11b).
7. The nozzle according to claim 5, characterized in that, The trigger module (200) includes: a base (21), two of which are provided to form the outline of the trigger module (200); a temperature sensing element (22), which is provided between the two bases (21) to limit the shrinkage of the outline of the trigger module (200); and a retaining ring, which is provided between the two bases (21) to limit the expansion of the outline of the trigger module (200); one or more retaining rings are provided, and the retaining ring and the temperature sensing element (22) cooperate to define the positional relationship between the two bases (21); wherein, the second groove (214) is provided with an inlet (1111), the inlet (1111) is provided on any surface of the base (21), and the inlet (1111) is offset from the receiving portion (11) along the extension end away from the first groove (111).
8. The nozzle according to claim 1, characterized in that, The locking member (300) is fixedly connected to at least one of the first groove (111) and the second groove (214).
9. The nozzle according to claim 1, characterized in that, The locking element (300) is at least partially bonded, snapped, or welded to the limiting cavity.
10. The nozzle according to claim 1, characterized in that, The locking element (300) is spherical; or the locking element (300) includes a locking body (31) and a locking head (32), wherein the locking head (32) and the locking body (31) are integral or connected and fixed; the locking body (31) and the locking head are respectively located in two grooves that make up the limiting cavity, and at least one of the locking body (31) and the locking head (32) is connected to its corresponding groove.