Telescopic self-locking structure

Abstract

The utility model discloses a telescopic self-locking structure which comprises a shell, a concave cavity formed in the shell, a locking hole formed in the inner side wall of the concave cavity, an elastic spring bolt connected with the locking hole and a connecting rod which is arranged in the concave cavity and can move back and forth in the concave cavity. The main spring is arranged at the bottom of the concave cavity and is connected with the connecting rod; the elastic locking device is arranged on the connecting rod; the elastic lock tongue is matched with the elastic lock catch device to lock or release the position where the connecting rod reciprocates back and forth in the concave cavity. The whole structure is simple, the elastic lock catch device arranged on the connecting rod is matched with the elastic lock tongue arranged on the side wall of the concave cavity, the up-down moving function of the connecting rod in the concave cavity can be achieved, corresponding locking is conducted, and therefore the extending and retracting functions of a small doll or a small ornament arranged at the top end of the connecting rod are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical technical field, specifically point to a telescopic self -locking structure. BACKGROUND

[0002] At present, along with the improvement of people's life quality, the comfort and atmosphere of living environment are paid more and more attention, and vehicle-mounted incense, household incense, humidifier and other products show the vigorous development situation. The vehicle-mounted incense product market steadily expands due to the continuous growth of the automobile ownership and the pursuit of the personalization of the vehicle interior environment, and at the same time, the household incense and atomization product is widely used in the living room, bedroom, office and other places under the driving of the consumption upgrading, and the market scale is expanding. But the vehicle-mounted incense product, household incense product, humidifier product and the product with atomization function in the market at present, all generally focus on the incense function itself in design, and ignore the role of the product as a space decoration ornament. In the appearance modeling aspect, it lacks the design that can produce emotional resonance with consumers, has interesting and interactive nature, especially the product that can control the small doll or small ornament to pop up or retract at any time according to the needs. And the function of the small doll or small ornament popping up or retracting must rely on the specific telescopic self-locking structure to realize, therefore, it is essential to design a telescopic self-locking structure that can realize the function of the small doll or small ornament extending or retracting. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at overcoming the defect that there is no telescopic self-locking structure that can realize the function of the small doll or small ornament extending or retracting in the market at present, and provides a brand-new telescopic self-locking structure.

[0004] The technical scheme of the utility model is as follows: a telescopic self-locking structure, including the shell, the concave cavity formed on the shell, the locking hole arranged on the inner side wall of the concave cavity, the elastic lock tongue connected with the locking hole, the connecting rod arranged in the concave cavity and can reciprocate in the concave cavity, the main spring arranged at the bottom of the concave cavity and connected with the connecting rod and the elastic lock catch device arranged on the connecting rod, the elastic lock tongue and the elastic lock catch device are matched and used for locking or releasing the moving position of the connecting rod in the concave cavity.

[0005] As one of the preferred modes, the elastic lock catch device includes the auxiliary spring, the lower driving block fixedly connected with the connecting rod, the upper driving block arranged on the connecting rod and can slide up and down along the surface thereof and the limiting ring arranged on the connecting rod and used for limiting the upper end sliding position of the upper driving block, the upper driving block is located above the lower driving block, and the auxiliary spring is sleeved on the connecting rod and located between the lower driving block and the upper driving block.

[0006] As a second preferred mode, the elastic lock catch device comprises a lower driving block fixedly connected with the connecting rod, a limiting ring arranged on the connecting rod, and an upper driving block arranged on the connecting rod and capable of sliding up and down along the surface of the connecting rod; the upper driving block is located above the lower driving block, and the limiting ring is located above the upper driving block; the upper driving block is tightly attached to the upper end surface of the lower driving block under the gravity of the upper driving block and keeps a distance between the upper driving block and the limiting ring.

[0007] As a first preferred mode of the elastic lock tongue, the elastic lock tongue comprises a thin spring arranged inside the locking hole, a tongue rod arranged inside the locking hole and capable of sliding along the inner wall of the locking hole, and a tongue block arranged inside the locking hole and fixedly connected with the tongue rod; the tongue block is capable of sliding along the inner wall of the locking hole, and the front end portion of the tongue block extends into the cavity in the free state of the thin spring.

[0008] As a second preferred mode of the elastic lock tongue, the elastic lock tongue comprises a thin spring arranged inside the locking hole, a tongue rod arranged inside the locking hole, and a tongue block fixedly connected with the tongue rod; the thin spring is connected with the tongue rod, and the tongue block is located outside the locking hole; the tongue rod is capable of sliding inside the locking hole.

[0009] Further, the bottom surface of the tongue block is arranged as a plane, the top surface of the lower driving block is arranged as a plane, and a lower driving inclined surface opposite to the tongue block and capable of driving the tongue block to slide towards the locking hole is arranged on the lower driving block.

[0010] Alternatively, the bottom surface of the tongue block is arranged as a plane, the top surface of the lower driving block is arranged as a plane, and an inclined end surface of the lower driving block is arranged on the tongue block, and the tongue block is capable of sliding towards the locking hole under the action of the lower driving block.

[0011] Alternatively, the bottom surface of the tongue block is arranged as a plane, the top surface of the lower driving block is arranged as a plane, an inclined end surface of the lower driving block is arranged on the tongue block, and a lower driving inclined surface opposite to the inclined end surface is arranged on the lower driving block.

[0012] To ensure the normal operation of the utility model, the distance between the upper end surface of the lower driving block and the lower end surface of the upper driving block is greater than or equal to the height of the lock tongue.

[0013] The overall width of the upper driving block is equal to or greater than the overall width of the lower driving block.

[0014] The elastic force of the main spring is greater than the elastic force of the auxiliary spring.

[0015] To ensure the stability of the operation of the connecting rod, the utility model can further comprise a guide column arranged at the bottom of the cavity, and the connecting rod is internally provided with a through hole, the guide column is arranged inside the through hole, and the connecting rod is capable of sliding up and down along the surface of the guide column.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0017] (1) the utility whole structure is simple, through setting elastic lock catch device on connecting rod and setting elastic lock tongue on recess cavity lateral wall cooperation, can realize connecting rod inside recess cavity up and down movement function and carry out corresponding lock, thereby realize setting in connecting rod top end small doll or small ornament extension and retraction function.

[0018] (2) the utility elastic lock catch device structure design novel, not only whole structure is simple, but also can obviously reduce manufacturing difficulty and cost, can prolong its life.

[0019] (3) the utility can be applied in vehicle-mounted aromatherapy product, domestic aromatherapy product, humidifier and so on related product, still can be applied in any need realization telescopic locking function occasion, its application surface is very extensive. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is whole structure schematic view when small ornament retracts in recess cavity for the utility model application in humidifier product.

[0021] Figure 2 It is Figure 1 Whole structure schematic view when small ornament pops out recess cavity.

[0022] Figure 3 It is Figure 2 Sectional structure schematic view when small ornament pops out recess cavity as shown in the figure.

[0023] Figure 4 It is sectional structure schematic view when lower drive block is stuck between two lock tongues.

[0024] Figure 5 It is sectional structure schematic view when lower drive block and lock tongue lock.

[0025] Figure 6 It is sectional structure schematic view when upper drive block is stuck between two lock tongues.

[0026] Figure 7 It is sectional structure schematic view when lock tongue resets.

[0027] Figure 8 It is sectional structure schematic view when the utility model sets up guide column in recess cavity bottom.

[0028] Figure 9 It is structure schematic view when tongue block is provided with inclined end face, and lower drive block is provided with lower drive inclined surface.

[0029] Figure 10This is a structural diagram showing the case where the tongue block has no inclined end face and the lower drive block has a lower drive inclined surface.

[0030] Figure 11 This is a schematic diagram of a structure where the tongue block has an inclined end face and the lower drive block has no lower drive inclined surface.

[0031] Figure 12 This is a schematic diagram of the overall structure when the locking tongue has the second type of structure.

[0032] The reference numerals in the above figures are named as follows:

[0033] 1—Base, 2—Shell, 3—Cavity, 4—Guide Post, 5—Small Ornament, 31—Locking Hole, 32—Connecting Rod, 33—Main Spring, 34—Lower Drive Block, 35—Upper Drive Block, 36—Auxiliary Spring, 37—Lock Tongue, 38—Fine Spring, 39—Limiting Ring, 321—Lower Drive Inclined Surface, 371—Vertical End Face, 372—Inclined End Face, 373—Tongue Rod, 374—Tongue Block. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to the embodiments, but the implementation of the present invention is not limited thereto.

[0035] Example 1

[0036] like Figures 1-3 As shown, the telescopic self-locking structure described in this embodiment includes a housing 2, a cavity 3 on the housing 2, a locking hole 31 on the inner side wall of the cavity 3, an elastic locking tongue disposed inside the locking hole 31, a connecting rod 32 disposed inside the cavity 3 and capable of reciprocating within the cavity 3, a main spring 33 disposed at the bottom of the cavity 3 and connected to the connecting rod 32, and an elastic locking device disposed on the connecting rod 32. The elastic locking tongue and the elastic locking device are matched and cooperate with each other to lock or release the function of the connecting rod 32 reciprocating within the cavity 3. That is, when the elastic locking tongue and the elastic locking device are engaged, the connecting rod 32 retracts inside the cavity 3; when the elastic locking tongue and the elastic locking device are engaged, the connecting rod 32 extends outside the cavity 3. When a small ornament 5 is fixedly installed on the top of the connecting rod 32, the function of hiding and popping out the small ornament 5 can be realized.

[0037] The housing 2 can be of any shape, such as a cylinder with a circular, elliptical, hexagonal, or octagonal cross-section, or even a cartoon character design. The housing 2 can be used alone, or it can be fixedly connected to the atomizer base 1, or connected in a detachable manner. A recessed cavity 3 is provided on the housing 2; it is a semi-open cavity, and the small ornament 5 is disposed within this recessed cavity 3.

[0038] The number of the locking holes 31 is one or more. When the number of the locking holes 31 is one, the locking hole 31 can be arranged at any position of the inner side wall of the concave cavity 3. When the number of the locking holes 31 is more than one, the locking holes 31 are preferably evenly distributed on the inner side wall of the concave cavity 3, and the center axes of the locking holes 31 are located in the same plane.

[0039] The elastic lock tongue is composed of a lock tongue 37 and a thin spring 38. The lock tongue 37 is in the shape of a "T", which is composed of a vertically arranged tongue block 374 and a horizontally arranged tongue rod 373 fixedly connected with the tongue block 374. The tongue block 374 is preferably in the shape of a long block, and the tongue rod 373 is arranged in the locking hole 31 and can slide in the locking hole 31. The thin spring 38 is arranged in the locking hole 31 and is sleeved on the tongue rod 373. When the thin spring 38 is in a compressed state, the tongue block 374 can be provided with a pushing force always directed to the concave cavity 3. According to the above structure, the tongue block 374 can freely slide in the locking hole 31 through the tongue rod 373.

[0040] According to actual manufacturing needs, the tongue block 374 and the inner wall of the concave cavity 3 can have two positional relationships. One is that the tongue block 374 is located outside the locking hole 31, and can reciprocate in the concave cavity 3 through the tongue rod 373, but can only move to the inner wall of the concave cavity 3. The other is that a groove matching the shape and size of the tongue block 374 is arranged on the side wall of the concave cavity 3 at the position of the locking hole 31, so that the tongue block 374 can be completely embedded in the groove when reciprocating in the concave cavity 3, so that the outer side of the tongue block 374 and the inner wall of the concave cavity 3 form a smooth arc surface, which facilitates the sliding of the elastic lock device in the concave cavity 3.

[0041] The elastic lock device is composed of an auxiliary spring 36, a connecting rod 32, a lower driving block 34 fixedly connected with the connecting rod 32, an upper driving block 35 arranged on the connecting rod 32 and capable of sliding up and down on the surface of the connecting rod 32, and a limiting ring 39 arranged on the connecting rod 32 and used for limiting the sliding position of the upper end of the upper driving block 35.

[0042] When connected, the upper driving block 35 is above the lower driving block 34, and the auxiliary spring 36 is sleeved on the connecting rod 32 and between the lower driving block 34 and the upper driving block 35, to ensure that the lower end surface of the upper driving block 35 and the upper end surface of the lower driving block 34 always maintain a distance without external force pressing, and the distance is the same as or slightly greater than the height of the tongue block 374, to ensure that the tongue block 374 can be completely clamped between the lower end surface of the upper driving block 35 and the upper end surface of the lower driving block 34 when the elastic locking device is locked. The height of the small pendulum 5 when popped out is determined by the height of the tongue block 374. The greater the height of the tongue block 374, the higher the height of the small pendulum 5 extending out of the end surface of the recess 3.

[0043] The elastic locking device in the embodiment can also remove the auxiliary spring 36 and be directly composed of the connecting rod 32, the lower driving block 34, the upper driving block 35 and the limiting ring 39. The connecting relationship of the connecting rod 32, the lower driving block 34, the upper driving block 35 and the limiting ring 39 is the same as the above-described connecting relationship, only that the auxiliary spring 36 is cancelled between the upper driving block 35 and the lower driving block 34. After connected in the above-described manner, the upper driving block 35 is tightly attached to the upper end surface of the lower driving block 34 under the gravity of the upper driving block 35, and the upper driving block 35 can slide up and down along the connecting rod 32. When the upper driving block 35 is tightly attached to the lower driving block 34 under the gravity, a distance is left between the upper driving block 35 and the limiting ring 39, and the distance needs to be the same as or slightly greater than the height of the tongue block 374.

[0044] The tongue block 374 needs to cooperate with the upper driving block 35 and the lower driving block 34 to realize the locking and unlocking functions of the connecting rod 32. In the embodiment, the structure configuration of the tongue block 374 and the upper driving block 35 and the lower driving block 34 can have the following three ways: one is Figure 10 As shown in the figure, the bottom surface of the tongue block 374 is a plane, the top surface of the lower driving block 34 is a plane, and the lower driving block 34 is provided with a lower driving inclined surface 321 opposite to the tongue block 374, which can drive the tongue block 374 to slide to the direction of the locking hole 31. In this way, since the lower driving block 34 is provided with the inclined lower driving inclined surface 321, when the lower driving block 34 moves downward, the lower driving inclined surface 321 provides a driving force to the tongue block 374 to slide to the direction of the locking hole 31, thereby pushing the tongue block 374 to move and preventing the tongue block 374 from hindering the downward movement of the lower driving block 34.

[0045] The second is Figure 11As shown, the bottom surface of the tongue block 374 is set as a plane, and the top surface of the lower driving block 34 is set as a plane. The tongue block 374 has an inclined end face 372 facing the lower driving block 34. Under the action of the lower driving block 34, the tongue block 374 can slide towards the locking hole 31. Its working principle is the same as described above and will not be repeated.

[0046] The third is Figure 9 As shown, the bottom surface of the tongue block 374 is a plane, and the top surface of the lower drive block 34 is a plane. The tongue block 374 has an inclined end face 372 facing the lower drive block 34, and the lower drive block 34 has a lower drive inclined surface 321 facing the inclined end face 372. Its working principle is the same as described above and will not be repeated. This structure can minimize the friction between the tongue block 374 and the lower drive block 34, and can be considered the optimal implementation. Similarly, the structure of the upper drive block 35 can be the same as that of the lower drive block 34.

[0047] Regardless of how the tongue block 374 and the lower drive block 34 are configured, the bottom surface of the tongue block 374 and the top surface of the lower drive block 34 need to be set as planes so that the tongue block 374 and the lower drive block 34 can realize specific locking functions.

[0048] The side of the tongue block 374 is a vertical end face 371. The so-called vertical end face 371 means that the long central axis of the end face is perpendicular to the horizontal plane, and its end face can be an arc surface, such as a concave arc surface, or a plane.

[0049] To better achieve the desired effect, the lower drive block 34 is preferably made as an inverted frustum, that is, the diameter of the upper end face of the lower drive block 34 is larger than the diameter of the lower end face, and the side of the inverted frustum is the drive inclined surface 321.

[0050] To ensure proper unlocking of the elastic locking device, the diameter or cross-sectional width of the upper driving block 35 must be greater than or equal to the diameter or cross-sectional width of the lower driving block 34.

[0051] The working principle of this embodiment will be explained below using the structure of having an inclined end face 372 on the tongue block 374 and a lower driving inclined surface 321 on the lower driving block 34 as an example: When the small ornament 5 is located outside the cavity 3, its structure is as follows Figure 3As shown, the main spring 33 and the auxiliary spring 36 are both in free state, at this time the tongue block 374 is away from the inner wall of the cavity 3 under the action of the thin spring 38 and is below the driving slope 321 of the lower driving block 34, and the thin spring 38 is in free state. When the small ornament 5 is pressed with force, under the action of external force, the main spring 33 is compressed, the lower driving block 34 and the upper driving block 35 move downward synchronously, the driving slope 321 of the lower driving block 34 contacts and presses the inclined end surface 372 of the tongue block 374, under the action of the driving slope 321, the tongue block 374 is pushed to the inner wall side of the cavity 3, the tongue rod 373 is driven to move toward the inner wall of the locking hole 31, and the thin spring 38 is compressed, at this time the structure is as shown in Figure 4 When the force continues, the lower driving block 34 continues to move downward until the upper end surface thereof is below the lower end surface of the tongue block 374, the main spring 33 is further compressed, and since the upper driving block 35 and the lower driving block 34 always maintain a distance of the height of the tongue block 374 under the action of the auxiliary spring 36, at this time the tongue block 374 is reset to the lower end surface of the upper driving block 35 and the upper end surface of the lower driving block 34 under the action of the thin spring 38, the upper end surface of the lower driving block 34 contacts and is locked by the tongue block 374, and the small ornament 5 is completely retracted into the cavity 3. At this time, when the external force disappears, since the lower driving block 34 is locked by the tongue block 374, the small ornament 5 will not be ejected, and the structure is as shown in Figure 5 .

[0052] When the small ornament 5 is pressed with force again, the side edge of the lower end surface of the upper driving block 35 will press the inclined end surface 372 of the tongue block 374, and since the limiting ring 39 is arranged on the connecting rod 32, the upper driving block 35 will not slide upward along the connecting rod 32, and thus under the limiting action of the limiting ring 39, the tongue block 374 is driven to move toward the side wall of the cavity 3 again, the upper driving block 35 is clamped between the two tongue blocks 374, and the two tongue blocks 374 are kept in separated state, at this time the structure is as shown in Figure 6 When the external force disappears again, since the elastic force of the main spring 33 is much greater than the elastic force of the auxiliary spring 36, the lower driving block 34 will move upward and compress the auxiliary spring 36, thereby driving the upper driving block 35 to move toward the top of the cavity 3, and the small ornament 5 is ejected from the top surface of the cavity 3, and the tongue block 374 is reset to the lower part of the lower driving block 34 under the action of the thin spring 38, at this time the structure is as shown in Figure 7 .

[0053] Through the above structure, the free expansion and contraction function of the small ornament 5 arranged on the shell 2 can be realized, and the shape of the small ornament 5 can be arbitrarily installed or replaced according to customer's preference.

[0054] Example 2

[0055] The difference between the present embodiment and embodiment 1 is only that the elastic lock tongue structure is different. In the present embodiment, the elastic lock tongue is still composed of a lock tongue 37 and a thin spring 38, and the lock tongue 37 is composed of a horizontally arranged tongue rod 373 and a tongue block 374 fixedly connected with the tongue rod 373 horizontally, that is, the tongue rod 373 and the tongue block 374 are horizontally connected, and the tongue block 374 can be completely retracted into the locking hole 31, and the structure is as shown in Figure 12 The remaining structures are the same as those of embodiment 1 and will not be described again.

[0056] Embodiment 3

[0057] The difference between the present embodiment and embodiment 1 is that a vertical guide column 4 is arranged at the middle position of the bottom of the cavity 3, and the structure is as shown in Figure 8 Meanwhile, a through hole matched with the guide column 4 is arranged on the connecting rod 32, the guide column 4 is inserted into the through hole, and the connecting rod 32 can slide up and down along the surface of the guide column 4. Through the above structure, it can be further ensured that the connecting rod 32 will not shake when moving up and down.

[0058] As described above, the present utility model can be well realized.

Claims

1. A telescoping self-locking structure, characterized by, The utility model relates to a locking device of a portable electronic product, which comprises a shell (2), a concave cavity (3) formed on the shell (2), a locking hole (31) arranged on the inner side wall of the concave cavity (3), an elastic lock tongue connected with the locking hole (31), a connecting rod (32) arranged in the concave cavity (3) and capable of reciprocating in the concave cavity (3), a main spring (33) arranged at the bottom of the concave cavity (3) and connected with the connecting rod (32), and an elastic lock device arranged on the connecting rod (32); the elastic lock tongue cooperates with the elastic lock device to lock or release the moving position of the connecting rod (32) in the concave cavity (3).

2. A telescoping self-locking structure according to claim 1, wherein The elastic lock device comprises an auxiliary spring (36), a lower driving block (34) fixedly connected with the connecting rod (32), an upper driving block (35) arranged on the connecting rod (32) and capable of sliding up and down on the surface of the connecting rod (32), and a limiting ring (39) arranged on the connecting rod (32) and used for limiting the sliding position of the upper end of the upper driving block (35); the upper driving block (35) is located above the lower driving block (34), and the auxiliary spring (36) is sleeved on the connecting rod (32) and located between the lower driving block (34) and the upper driving block (35).

3. A telescoping self-locking structure according to claim 1, wherein The elastic lock device comprises a lower driving block (34) fixedly connected with the connecting rod (32), a limiting ring (39) arranged on the connecting rod (32), and an upper driving block (35) arranged on the connecting rod (32) and capable of sliding up and down on the surface of the connecting rod (32); the upper driving block (35) is located above the lower driving block (34), and the limiting ring (39) is located above the upper driving block (35); under the gravity of the upper driving block (35), the upper driving block (35) is tightly attached to the upper end face of the lower driving block (34) and keeps a distance from the limiting ring (39).

4. A telescoping self-locking structure according to claim 2 or 3, characterized in that The elastic lock tongue comprises a thin spring (38) arranged in the locking hole (31), a tongue rod (373) arranged in the locking hole (31) and capable of sliding on the inner wall of the locking hole (31), and a tongue block (374) arranged in the locking hole (31) and connected with the tongue rod (373); the tongue block (374) can slide on the inner wall of the locking hole (31), and the front end portion of the tongue block (374) extends into the concave cavity (3) when the thin spring (38) is in a free state; Alternatively, the elastic lock tongue comprises a thin spring (38) arranged in the locking hole (31), a tongue rod (373) arranged in the locking hole (31), and a tongue block (374) fixedly connected with the tongue rod (373); the thin spring (38) is connected with the tongue rod (373), and the tongue block (374) is located outside the locking hole (31); the tongue rod (373) can slide in the locking hole (31).

5. A telescoping self-locking structure according to claim 4, wherein The bottom surface of the tongue block (374) is provided as a plane, the top surface of the lower driving block (34) is provided as a plane, and a lower driving inclined surface (321) is arranged on the lower driving block (34) and opposite to the tongue block (374) and capable of driving the tongue block (374) to slide in the direction of the locking hole (31); or the bottom surface of the tongue block (374) is provided as a plane, the top surface of the lower driving block (34) is provided as a plane, and an inclined end surface (372) of the lower driving block (34) is arranged on the tongue block (374) and faces the lower driving block (34), and the tongue block (374) is capable of sliding in the direction of the locking hole (31) under the action of the lower driving block (34); or the bottom surface of the tongue block (374) is provided as a plane, the top surface of the lower driving block (34) is provided as a plane, and an inclined end surface (372) of the lower driving block (34) is arranged on the tongue block (374) and faces the lower driving block (34), and a lower driving inclined surface (321) is arranged on the lower driving block (34) and faces the inclined end surface (372).

6. A telescoping self-locking structure according to claim 5, wherein The distance between the upper end surface of the lower driving block (34) and the lower end surface of the upper driving block (35) is greater than or equal to the height of the locking tongue (37).

7. A telescoping self-locking structure according to claim 5, wherein The overall width of the upper driving block (35) is equal to or greater than the overall width of the lower driving block (34).

8. A telescoping self-locking structure according to claim 2, wherein The elastic force of the main spring (33) is greater than the elastic force of the auxiliary spring (36).

9. A telescopic self-locking structure according to any one of claims 5 to 8, characterized in that, A guide column (4) is arranged at the bottom of the recessed cavity (3), the connecting rod (32) is internally provided with a through hole, the guide column (4) is located inside the through hole, and the connecting rod (32) can slide up and down along the surface of the guide column (4).

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