CN209744115U

CN209744115U - Interface seal structure and flashlight that charges charge

Info

Publication number: CN209744115U
Application number: CN201920893123.0U
Authority: CN
Inventors: 张丹
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2019-12-06
Anticipated expiration: 2029-06-14

Abstract

The utility model relates to a chargeable formula electrical equipment field, concretely relates to interface seal structure charges, including a recess and a sealed lid that charges, the interface that charges is located in the recess charges, the inner wall of the recess that charges has the internal thread, sealed ascending both ends of lid have external screw thread and end cover respectively, the external screw thread with the internal thread phase-match of the recess charges, the external screw thread is close to end cover department and is provided with the sealing washer, works as sealed lid precession during the recess charges, the sealing washer supports the gap between the internal thread and the external screw thread of looks interlock. The utility model discloses still relate to a flashlight charges, including above-mentioned arbitrary the interface seal structure charges. The utility model discloses can effectively avoid the steam dust to get into the interface that charges, simultaneously because of simple structure, small in size, internal thread, external screw thread and sealing washer are easily cleared up and are maintained, can effectively increase of service life.

Description

Interface seal structure and flashlight that charges charge

Technical Field

the utility model relates to a chargeable formula electrical equipment field, concretely relates to interface seal structure and flashlight that charges.

Background

The flashlight is widely used in the fields of fire rescue, outdoor exploration, maritime search, emergency rescue, disaster relief, single police equipment and the like as an emergency lighting tool besides common civil lighting, so compared with the civil flashlight, the fields have higher requirements on corrosion resistance, water resistance, dust prevention, flame retardance and falling resistance of the flashlight, and can be reliably, durable, maintenance-free, multipurpose and all-weather use. The rechargeable flashlight adopts a rechargeable battery, does not need to use a large number of disposable batteries, is energy-saving and environment-friendly, has long endurance time, and is welcomed by users in various fields all the time.

In the existing rechargeable flashlight, a charging interface is usually arranged on the flashlight, and a DC socket or various types of sockets such as a Mirco USB socket and a Type-C socket are arranged in the interface; during charging, the purpose of charging batteries in the flashlight is achieved by inserting corresponding charging plugs and chargers matched with the sockets into the charging interfaces; the charging mode is quick and convenient, so that the rechargeable flashlight is popular with consumers and becomes the mainstream charging structure of the rechargeable flashlight at present.

because the requirement of the charging interface on water resistance and dust resistance is high, the charging interface cannot be exposed on the barrel of the flashlight, and therefore the charging interface is required to be sealed to realize all-weather use. Rechargeable flashlight in the existing market realizes the interface seal of charging with two kinds mostly:

one type adopts a flexible rubber plug to plug in and cover a charging interface so as to ensure sealing and water proofing, and the sealed flashlight is common due to low cost of the rubber plug, but the fixed mode is not firm, and the rubber plug is easy to fall off and lose, so that the charging interface is directly exposed, various aging problems such as insufficient elasticity, deformation, fracture and the like are easy to occur in the rubber plug made of silica gel or rubber, the sealing effect is reduced, and the requirements of the outdoor flashlight on water proofing, dust proofing and the like cannot be met; if the installation position is located the head that the flashlight generates heat the biggest, the ageing speed of plug is aggravated more to high temperature, and is not durable enough. Moreover, the corrosion resistance of the material is relatively weak, the material is greatly influenced by high and low temperature environments, and the material cannot be used in special environments such as fire-fighting and rescue high-temperature fire fields and the like.

Another type is to make a sleeve from a rigid material and to fit the charging interface inside the sleeve. At present, the commonly adopted sealing structure for realizing the charging interface by the sleeve mainly adopts the following two forms:

As shown in fig. 1, which is a schematic view of a first prior art structure, a charging interface 12 is located on a flashlight barrel 11, a sleeve 13 with a diameter slightly larger than that of the barrel 11 is adopted, mutually-engaged threads (not shown in the figure) are arranged at corresponding positions between an inner wall of the sleeve 13 and the barrel 11, and the sleeve 13 is screwed to enable the threads to be mutually engaged or disengaged, so as to realize upward or downward movement of the sleeve 13, and further realize the operation of covering or exposing the charging interface.

As shown in fig. 2, which is a schematic view of a second prior art structure, a lamp cap 24 of the flashlight is independent from a barrel 21 of the flashlight, a sleeve 23 is formed in a hollow manner at a lower end of the lamp cap 24, threads (not shown) are arranged on an inner wall of the sleeve 23, threads 25 are correspondingly arranged at an upper end of the barrel 21, and a charging interface 22 is arranged at the threads 25, so that when the lamp cap 24 is screwed onto the barrel 21, the threads on the inner wall of the sleeve 23 and the threads 25 at the upper end of the barrel 21 are mutually engaged and fixed, and the charging interface 22 is hidden into the lamp cap 24, and the charging interface 22 is covered or exposed by screwing or unscrewing the engaged threads of the lamp cap 24 and the barrel 21 up and down.

The upward, downward, upper end, lower end and the like are referenced to the position of the flashlight in the figure.

Through the description of the two structures, although the sleeve is used for covering the charging interface, the problem that the charging interface is easy to expose is basically solved, the sleeves 13 and 23 and the inner threads thereof are made of rigid metal materials such as aluminum alloy, and the threads engaged with each other need a certain fit gap to be smoothly screwed in and out, so that dust and water vapor can enter the gap after long-term use, the sleeve threads are unsmooth and difficult to screw, electronic components in the charging interfaces 12 and 22 and the lamp cap 24 can be influenced inevitably, and even short circuit can be caused. On the other hand, because the thread structure is hidden at sleeve 23 inboard, it is very troublesome to clear up the dust, also does not do benefit to the later maintenance, and the structure is loaded down with trivial details complicated, and the processing cost and the assembly degree of difficulty are all higher.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes above-mentioned shortcoming provides a flashlight interface seal structure that charges of more simple and convenient economy, improves the sealing capacity of the kneck that charges, greatly improves the ability that chargeable flashlight is corrosion-resistant, waterproof dustproof, fire-retardant, prevent falling to realize reliable durable, non-maintaining, the multipurpose, the requirement of all-weather use.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an interface seal structure charges, includes a recess and a sealed lid of charging, the interface that charges is located in the recess charges, the inner wall of the recess that charges has the internal thread, sealed axially ascending both ends of lid have external screw thread and end cover respectively, the external screw thread with the internal thread phase-match of recess charges, the external screw thread is close to end cover department and is provided with the sealing washer, works as sealed lid precession when charging the recess, the sealing washer supports the gap between the internal thread of interlock and the external screw thread.

An annular water retaining wall surrounding the charging interface can be further arranged in the charging groove, and a hollow structure for accommodating the water retaining wall is arranged inside the external thread of the sealing cover.

The end cover of the sealing cover can be provided with a straight groove, and the straight groove is provided with an arc bottom surface or a straight bottom surface.

The end cover of the sealing cover can be provided with raised pieces which are arranged linearly.

the outer side wall of the end cover of the sealing cover can be provided with friction lines, and the friction lines are straight grooves or knurled lines.

The end cover of the sealing cover can be provided with a hinged hanging ring.

The end cap of the seal cap may be provided with a standard 1/4 inch or 3/8 inch threaded hole in the central axial direction.

A rechargeable flashlight comprises a barrel body, a charging interface arranged on the barrel body and any one of the charging interface sealing structures arranged at the charging interface.

The tail end of the flashlight barrel can be provided with a containing groove, and the inner wall of the containing groove is provided with an inner diameter and an inner thread which are the same as those of the charging groove.

The utility model discloses an internal thread of the recess that charges meshes with the external screw thread of sealed lid mutually, utilizes the sealing washer to support the gap between the internal thread of looks interlock and the external screw thread, effectively avoids the steam dust to get into the interface that charges, simultaneously because of simple structure, small in size, internal thread, external screw thread and sealing washer are easily cleared up and are maintained, can effectively increase of service life. In addition, in case there is a small amount of infiltration entering sealed lid, through the annular waterwall that sets up in the recess that charges shelters from the infiltration circulation route, makes the infiltration hardly reach the interface that charges, has further guaranteed the cleanness of the kneck that charges. The utility model discloses can expand be applicable to in various electronics, the electrical equipment that have waterproof dustproof sealing requirement to the interface that charges.

Drawings

FIG. 1 is a schematic diagram of a first prior art configuration;

FIG. 2 is a schematic diagram of a second prior art configuration;

Fig. 3 is a schematic structural view of the sealing structure of the charging interface of the present invention;

FIG. 4 is a sectional view taken along line A-A of FIG. 3 in an assembled state;

Fig. 5 is a schematic structural view of another sealing cover of the present invention;

Fig. 6 is a schematic view of a first state of the rechargeable flashlight of the present invention;

Fig. 7 is a structural diagram of a second state of the rechargeable flashlight of the present invention.

Detailed Description

As shown in fig. 3, for in the utility model discloses in charge interface seal structure's structural schematic diagram, including one recess 31 and the sealed lid 35 that charges, the interface 32 that charges is located in the recess 31 that charges, the inner wall of the recess 31 that charges has internal thread 33, sealed lid 35 is to the ascending both ends external screw thread 36 and end cover 37 have respectively, external screw thread 36 with the internal thread 33 phase-match of the recess that charges. The diameter of the external thread 36 is slightly smaller than that of the end cover 37, and a sealing ring 38 is arranged on the external thread close to the end cover.

as shown in fig. 4, which is a cross-sectional view taken along the direction a-a in fig. 3, that is, a state when the sealing cover 35 is screwed into the charging recess 31, at this time, the internal thread 33 in the charging recess 31 is engaged with the external thread 36 on the sealing cover 35, and the sealing ring 38 is abutted against a gap between the engaged internal thread 33 and external thread 36, so as to effectively prevent moisture and dust from entering between the internal thread 33 and external thread 36 and the internal charging interface 32.

As shown in fig. 3 and 4, the charging groove 31 is further provided with an annular water retaining wall 34 surrounding the charging interface 32, correspondingly, the outer thread 36 of the sealing cover 35 is internally provided with a hollow structure 39, the outer diameter of the water retaining wall 34 is slightly smaller than the inner diameter of the hollow structure 39, so that in an assembly state, the hollow structure 39 just accommodates the water retaining wall 34, once a small amount of water seeps into the sealing cover 35 through a gap between the inner thread 33 and the outer thread 36, the water seeping path is shielded through the annular water retaining wall 34, the water seeps are difficult to reach the charging interface 32, and the drying and cleaning of the charging interface are further ensured. Meanwhile, when the sealing cover 35 is unscrewed, the structures such as the internal thread 33, the external thread 36 and the sealing ring 38 are exposed outside, so that the cleaning and maintenance are easy, and the service life can be effectively prolonged.

Further, in order to facilitate the screwing-in and screwing-out of the sealing cover 35, at least one screwing-facilitating structure may be provided on the end cap 37 at the other end of the sealing cover 35: as shown in fig. 3 and 4, in this embodiment, the end cap 37 is provided with an in-line groove 372, the in-line groove 372 is an arc-shaped bottom surface and is suitable for inserting a coin to assist in screwing the end cap 37, and the in-line groove 372 is a flat bottom surface (not shown in the figures) and is more suitable for screwing the end cap 37 by a thin-sheet tool such as an in-line screwdriver, a cutter, a card, and the like, so as to detach and fasten the sealing cover 35; a group of two convex sheets 371 which are perpendicular to the direction of the straight groove 372 and are linearly arranged are further arranged on the end cover 37, so that a user can conveniently pull and screw the sealing cover 35 by hands; the outer side wall of the end cover 37 is further provided with friction lines, in this embodiment, the friction lines are straight grooves 373, and when the end cover 37 is directly screwed by bare hands, friction force with the outer side wall of the end cover is increased.

in addition, the end cap of the sealing cap may be provided with other auxiliary structures, as shown in fig. 5, which is a structural schematic view of another sealing cap 35 ″ and is similar to the sealing cap in fig. 3 and 4, and all have external threads 36, a sealing ring 38, an end cap 37 and a straight groove 372, except that the center of the end cap 37 is further provided with a standard 1/4 inch or 3/8 inch screw hole 374, and the standard screw hole 374 can be used for connecting equipment with a standard screw fixing device, such as a tripod; the end cover 37 can also be provided with a hanging ring 375, the hanging ring 375 is hinged on the end cover 37, the end cover 37 can be conveniently screwed, the hanging ring can also be used as a hanging ring to hang a strap, and the hanging ring can be laid flat when not in use, so that more convenience is brought to outdoor use; in fig. 5, the outer side wall of the end cap 37 has friction lines, in this embodiment, the friction lines are knurling 376, which also serves to increase friction with the outer side wall of the end cap 37 when the end cap is directly screwed.

Can know through above-mentioned structural description, the utility model discloses the interface seal structure that charges that requires protection can effectively avoid the steam dust to get into the interface that charges, internal thread, external screw thread and sealing washer easily clear up the maintenance, can effectively increase of service life. Simultaneously, can be according to actual need on the end cover, with arbitrary collocation combination use of structures such as straight line groove, lug, standard screw, link, friction line for sealed lid small in size, it is easy and simple to handle, not only can be operated by bare-handed hand, also can use the coin to dismantle or fasten, and is nimble simple and convenient, hides the interface mode that charges than current sleeve and more does benefit to later maintenance, save material reduce cost.

the utility model provides an interface seal structure charges is applicable in various electron, the electrical equipment that have waterproof dustproof sealing requirement to the interface that charges, for example the flashlight that charges.

fig. 6 is the utility model discloses a first state structure schematic diagram of the flashlight that charges who claims is provided with the recess that charges on the stack shell 1 of flashlight, the interface that charges is located in the recess that charges, under this state, sealed lid 35 screw in charge in the recess (in this figure, charge interface and charge recess quilt sealed lid 35 shelters from), through the aforesaid interface seal structure that charges known, the interface that charges can obtain good sealed and protection. The tail end 2 of the flashlight is provided with a receiving groove 3, and the inner wall of the receiving groove 3 is provided with the same inner diameter and inner thread as the inner wall of the charging groove.

Fig. 7 is the second state structure diagram of the rechargeable flashlight in the utility model, under this state, sealed lid 35 is from the recess 31 that charges on the stack shell 1 back-out, the interface 32 that charges exposes, can carry out the operation of charging to the rechargeable flashlight, at this moment, can with sealed lid 35 screw in tail end 2 in the recess is accomodate (by sealed lid 35 shelters from), avoids sealed lid 35 to place at will, prevents to lose.

The above detailed description is made on the charging interface sealing structure and the charging flashlight provided by the utility model, and the specific examples are applied herein to explain the principle and the implementation mode of the utility model, and the description of the above embodiments is only used to help understanding the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. The utility model provides an interface seal structure charges which characterized in that: including one and charge recess and a sealed lid, the interface that charges is located charge in the recess, the inner wall of the recess that charges has the internal thread, sealed ascending both ends of cover axial have external screw thread and end cover respectively, the external screw thread with the internal thread phase-match of the recess that charges, the external screw thread is close to end cover department and is provided with the sealing washer, works as sealed lid precession when charging the recess, the sealing washer supports the gap between the internal thread of interlock and the external screw thread.

2. The charging interface sealing structure of claim 1, wherein: the charging device is characterized in that an annular water retaining wall surrounding the charging interface is further arranged in the charging groove, and a hollow structure for accommodating the water retaining wall is arranged inside the external thread of the sealing cover.

3. The charging interface sealing structure of claim 2, wherein: the end cover of the sealing cover is provided with a straight groove, and the straight groove is provided with an arc bottom surface or a straight bottom surface.

4. The charging interface sealing structure of claim 3, wherein: the outer side wall of the end cover of the sealing cover is provided with friction lines, and the friction lines are straight grooves or knurled lines.

5. The charging interface sealing structure according to any one of claims 1 to 4, characterized in that: the end cover of the sealing cover is provided with protruding pieces which are linearly arranged.

6. The charging interface sealing structure according to any one of claims 1 to 4, characterized in that: and the end cover of the sealing cover is provided with a hinged hanging ring.

7. The charging interface sealing structure according to any one of claims 1 to 4, characterized in that: the center of the end cap of the seal cap is axially provided with a standard 1/4 inch or 3/8 inch threaded hole.

8. The utility model provides a flashlight charges, includes the barrel and sets up interface that charges on the barrel, its characterized in that: the charging interface sealing structure is characterized by further comprising any one of the charging interface sealing structures arranged at the charging interface.

9. The rechargeable flashlight of claim 8, wherein: the tail end of the flashlight barrel is provided with a containing groove, and the inner wall of the containing groove is provided with an inner diameter and an inner thread which are the same as those of the inner wall of the charging groove.