Telescopic adjusting mechanism and head-mounted device

Abstract

The invention discloses a telescopic adjusting mechanism and a head-mounted device. The telescopic adjusting mechanism comprises a mounting carrier and a telescopic assembly. The two telescopic assemblies are arranged at the two opposite ends of the mounting carrier, each telescopic assembly comprises a connecting piece and an elastic piece, the connecting pieces are arranged on the mounting carrier in a sliding mode, a guide cavity is defined by the connecting pieces and the mounting carrier, and the guide cavities extend along the sliding tracks of the connecting pieces; the elastic piece is arranged in the guide cavity, and the two opposite ends of the elastic piece are connected to the installation carrier and the connecting piece correspondingly. According to the technical scheme, the head-mounted device can be telescopically adjusted to be worn, so that the applicability of the head-mounted device to different users is improved, and the wearing experience of the users is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of head-mounted devices, and in particular to a telescopic adjustment mechanism and a head-mounted device using the telescopic adjustment mechanism. Background Art

[0002] In order to increase the usage time of AR glasses or VR glasses, such products need to be equipped with large-capacity batteries. However, large-capacity batteries are generally larger in size, which makes the battery relatively heavy. Therefore, in order to facilitate users to wear them stably, head-mounted wearables are becoming more and more widely used.

[0003] However, different users have heads of different sizes, which makes the head-mounted device unable to adapt to different users well, affecting the user's wearing experience. Summary of the invention

[0004] The main purpose of the present invention is to provide a telescopic adjustment mechanism, which aims to enable a head-mounted device to be telescopically adjusted for wearing, so as to improve the applicability of the head-mounted device to different users.

[0005] To achieve the above-mentioned purpose, the telescopic adjustment mechanism proposed in the present invention is applied to a head-mounted device, and the telescopic adjustment mechanism includes:

[0006] Mounting carrier; and

[0007] A telescopic component, wherein the two telescopic components are arranged at opposite ends of the mounting carrier, and the telescopic component includes a connecting piece and an elastic piece. The connecting piece is slidably arranged on the mounting carrier and is surrounded by the mounting carrier to form a guide cavity. The guide cavity is extended along the sliding track of the connecting piece. The elastic piece is arranged in the guide cavity, and the opposite ends of the elastic piece are respectively connected to the mounting carrier and the connecting piece.

[0008] Optionally, the mounting carrier is provided with a sliding cavity, and the mounting carrier is also provided with a communication port communicating with the sliding cavity;

[0009] The connecting piece is slidably disposed in the sliding cavity and partially extends out of the communicating port. The connecting piece and the cavity wall of the sliding cavity enclose the guiding cavity.

[0010] Optionally, the connecting member located in the sliding cavity is provided with a mounting groove, and the mounting groove is extended along the sliding track of the connecting member;

[0011] The installation groove and the cavity wall of the sliding cavity enclose the guide cavity, and the elastic member is arranged in the installation groove.

[0012] Optionally, the elastic member is defined to have a first end and a second end, and the first end is disposed close to the communication port;

[0013] The cavity wall of the sliding cavity is convexly provided with a limiting rib, which extends into the installation groove and contacts the side of the first end away from the second end, and the side of the second end away from the first end contacts the groove wall of the installation groove.

[0014] Optionally, the mounting carrier is further provided with a battery cavity, and the battery cavity is used to accommodate a battery;

[0015] The connecting piece is also provided with a wire-passing channel, and the wire-passing channel and the mounting groove are arranged side by side. One end of the wire-passing channel passes through the connecting piece outside the sliding cavity, and the other end is connected to the battery cavity.

[0016] Optionally, the number of the mounting slots is two, the telescopic assembly includes two elastic members, each of the elastic members is disposed in one of the mounting slots, and the wire-passing channel is located between the two mounting slots.

[0017] Optionally, the sliding cavities corresponding to the two connecting members are connected, and the two sliding cavities are also connected to the battery cavity.

[0018] Optionally, the mounting carrier includes a first shell and a second shell, the second shell is connected to the first shell, and together with the first shell, forms the sliding cavity and the communicating port.

[0019] Optionally, the mounting carrier is an arc-shaped structure;

[0020] And / or, the connecting member is an arc-shaped structure;

[0021] And / or, the material of the connecting piece is thermoplastic polyurethane elastomer;

[0022] And / or, the elastic member is a spring.

[0023] The present invention also provides a head mounted device, comprising:

[0024] Host;

[0025] Temples, wherein two temples are respectively arranged at opposite ends of the host; and

[0026] The telescopic adjustment mechanism is the telescopic adjustment mechanism as described above, wherein the ends of the two connecting members in the telescopic adjustment mechanism away from the mounting carrier are respectively connected to the ends of the two temples away from the host.

[0027] When the telescopic adjustment mechanism of the technical solution of the present invention is applied to a head-mounted device, the connecting pieces in the two telescopic components of the telescopic adjustment mechanism can be directly or indirectly connected to the opposite ends of the host in the head-mounted device, so that the telescopic adjustment mechanism can enclose the host to form a space for the user's head to wear. Moreover, since the connecting piece of the telescopic component is slidably arranged on the mounting carrier, and an elastic piece is also connected between the connecting piece and the mounting carrier, the connecting piece and the mounting carrier can slide relative to each other to adjust the size of the wearing space enclosed by the telescopic adjustment mechanism and the host to adapt to the head size of different users. Therefore, the setting of the telescopic adjustment mechanism in this solution enables the head-mounted device to be telescopically adjusted and worn, thereby improving the applicability of the head-mounted device to different users. Moreover, since the connecting piece is also enclosed with the mounting carrier to form a guide cavity, the elastic piece can be guided by the guide cavity, which is conducive to improving the stability and consistency of the elastic piece's telescopic process, so as to stably apply the corresponding wearing force to the user, thereby helping to improve the user's wearing experience of the head-mounted device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0029] Figure 1 This is a schematic diagram of the head mounted device of the present invention in an unstretched state;

[0030] Figure 2 for Figure 1 The middle diagram is a schematic diagram of the head-mounted device in a stretched state;

[0031] Figure 3 It is a schematic diagram of the exploded structure of an embodiment of the telescopic adjustment mechanism of the present invention;

[0032] Figure 4 for Figure 3 A cross-sectional schematic diagram of the telescopic adjustment mechanism;

[0033] Figure 5 for Figure 4 A partial structural diagram of the telescopic adjustment mechanism;

[0034] Figure 6 for Figure 5 A local enlarged schematic diagram of the middle A;

[0035] Figure 7 for Figure 3A partial cross-sectional schematic diagram of the telescopic adjustment mechanism.

[0036] Description of Figure Numbers:

[0037]

[0038]

[0039] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0042] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or a solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0044] At present, in order to increase the use time of AR glasses or VR glasses, such products need to be matched with large-capacity batteries. However, large-capacity batteries are generally large in size, which makes the weight of the batteries relatively large. Therefore, in order to facilitate users to wear stably, head-mounted wearables are increasingly widely used. However, different users have different head sizes, which makes it difficult for head-mounted devices to adapt to different users, affecting the user's wearing experience.

[0045] Based on the above considerations, in order to solve the problem that the current head-mounted devices cannot be worn by different users. Figures 1 to 7 The present application proposes a novel telescopic adjustment mechanism 10, which is applied to a head mounted device 100 (the head mounted device 100 may be an AR device or a VR device). In one embodiment of the present application, the telescopic adjustment mechanism 10 includes a mounting carrier 11 and a telescopic assembly 13; the two telescopic assemblies 13 are disposed at opposite ends of the mounting carrier 11, and the telescopic assembly 13 includes a connecting member 131 and an elastic member 135, the connecting member 131 is slidably disposed on the mounting carrier 11, and is enclosed with the mounting carrier 11 to form a guide cavity 132, the guide cavity 132 is extended along the sliding track of the connecting member 131, the elastic member 135 is disposed in the guide cavity 132, and the opposite ends of the elastic member 135 are respectively connected to the mounting carrier 11 and the connecting member 131.

[0046] The mounting carrier 11 can be used to mount the telescopic assembly 13 and other components (for example, the battery 70 of the head mounted device 100) so that these components can be assembled into a whole. The mounting carrier 11 can be a shell structure, and of course, it can also be a plate structure or a seat structure. In addition, the mounting carrier 11 can also be in an arc shape so as to fit the user's head, thereby improving the stability of the head mounted device 100 when worn on the user's head. Of course, the mounting carrier 11 can also be in a linear shape. Therefore, the present application does not limit the specific structural type and shape of the mounting carrier 11.

[0047] The telescopic assembly 13 may be provided with two groups, and respectively located at opposite ends of the mounting carrier 11. The connector 131 in the telescopic assembly 13 may be used to directly connect to the host 30 of the head-mounted device 100. Of course, when the head-mounted device 100 further includes a temple 50 connected to the host 30, the connector 131 may also be used to connect to the end of the temple 50 away from the host 30 to achieve indirect connection with the host 30. The connector 131 may be a plate structure, or a column structure. In addition, the connector 131 may be in an arc shape so as to fit the user's head, thereby improving the stability of the head-mounted device 100 when worn on the user's head. Of course, the connector 131 may also be in a linear shape. Therefore, the present application does not limit the specific structural type and shape of the mounting carrier 11. The connector 131 may also be used to enclose with the mounting carrier 11 to form a guide cavity 132, and the guide cavity 132 may be used to accommodate the elastic member 135. At the same time, since the guide cavity 132 is also extended from the sliding track of the connecting member 131, it can guide the elastic member 135 during its expansion and contraction process. The elastic member 135 can be used to provide elastic force, so that when the user drives the mounting carrier 11 and the connecting member 131 to slide relative to each other to adjust the size of the wearing space 90 enclosed by the telescopic assembly 13 and the host 30 for the user's head to wear, the elastic member 135 can generate corresponding elastic force, so that the head-mounted device 100 can be worn on the user's head more stably. The elastic member 135 can be a spring, or a rubber band or an elastic silicone strip. The present application does not limit the specific type of the elastic member 135.

[0048] When the telescopic adjustment mechanism 10 of the technical solution of the present application is applied to the head-mounted device 100, the connecting pieces 131 in the two telescopic components 13 of the telescopic adjustment mechanism 10 can be directly or indirectly connected to the opposite ends of the host 30 in the head-mounted device 100, so that the telescopic adjustment mechanism 10 and the host 30 can enclose a space for the user's head to wear. Moreover, since the connecting piece 131 of the telescopic component 13 is slidably arranged on the mounting carrier 11, and an elastic piece 135 is also connected between the connecting piece 131 and the mounting carrier 11, the connecting piece 131 and the mounting carrier 11 can slide relative to each other to adjust the size of the wearing space 90 enclosed by the telescopic adjustment mechanism 10 and the host 30 to adapt to the head size of different users. Therefore, the setting of the telescopic adjustment mechanism 10 in the present solution enables the head-mounted device 100 to be telescopically adjusted and worn, thereby improving the applicability of the head-mounted device 100 to different users. Furthermore, since the connecting member 131 and the mounting carrier 11 also enclose a guide cavity 132, the expansion and contraction of the elastic member 135 can be guided by the guide cavity 132, which is beneficial to improve the stability and consistency of the expansion and contraction process of the elastic member 135, so as to stably apply the corresponding wearing force to the user, which is beneficial to enhance the user's wearing experience of the head mounted device 100.

[0049] Please refer to Figures 3 to 7 In one embodiment of the present application, the mounting carrier 11 is provided with a sliding cavity 111, and the mounting carrier 11 is also provided with a connecting port 113 connected to the sliding cavity 111; the connecting member 131 is slidably disposed in the sliding cavity 111 and partially extends out of the connecting port 113, and the connecting member 131 and the cavity wall of the sliding cavity 111 enclose a guide cavity 132.

[0050] The sliding cavity 111, as the name implies, is a space for the connection member 131 to slide relatively, and can also guide the connection member 131. Therefore, the sliding cavity 111 can be extended along the sliding track of the connection member 131.

[0051] In this embodiment, by providing a sliding cavity 111 on the mounting carrier 11, on the one hand, the connector 131 can be accommodated, which is conducive to improving the compactness of the mounting of the connector 131 on the mounting carrier 11, so as to reduce the overall volume of the telescopic structure, so as to improve the convenience of subsequent users wearing the head-mounted device 100. On the other hand, the sliding cavity 111 can also guide the sliding of the connector 131, so as to accurately and stably adjust the size of the wearing space 90 formed by the telescopic mechanism and the host 30 of the head-mounted device 100. Among them, since the connector 131 is relatively arranged at the opposite ends of the mounting carrier 11, the mounting carrier 11 can be provided with two sliding cavities 111 to accommodate and install the two connectors 131 respectively. Among them, the two sliding cavities 111 can be arranged to be connected, and of course, they can also be arranged in an isolated state without being connected. In addition, it should be noted that in other embodiments, the mounting carrier 11 may not be provided with a sliding cavity 111. At this time, the connecting member 131 can be slidably disposed on the outside of the mounting carrier 11 , and enclosed with the outer surface of the mounting carrier 11 to form a guide cavity 132 for accommodating the elastic member 135 .

[0052] Please refer to Figures 4 to 7 In one embodiment of the present application, a connecting member 131 located in the sliding cavity 111 is provided with a mounting groove 133, and the mounting groove 133 is extended along the sliding track of the connecting member 131; the mounting groove 133 and the cavity wall of the sliding cavity 111 are enclosed to form a guide cavity 132, and the elastic member 135 is arranged in the mounting groove 133.

[0053] In this embodiment, a mounting groove 133 is provided on the connecting member 131, so that the guiding cavity 132 is enclosed by the mounting groove 133 and the cavity wall corresponding to the mounting groove 133 in the sliding cavity 111. In this way, it is not necessary to set a corresponding structure on the cavity wall of the sliding cavity 111 to enclose the guiding cavity 132, and it is only necessary to set a groove body with a relatively simple structure, the mounting groove 133, on the connecting member 131. Compared with the mounting carrier 11, the connecting member 131 has a simpler structure and a relatively small volume, so it is more convenient to set a corresponding groove body structure on the connecting member 131, which is conducive to improving the convenience of processing and forming the guiding cavity 132. Among them, when the telescopic adjustment mechanism 10 is applied to the head-mounted device 100 and is in a normal use state, the mounting groove 133 can be set on the inner side or outer side of the connecting member 131, and of course, it can also be set on the upper surface or lower surface of the connecting member 131. In addition, it should be noted that in other embodiments, the groove structure may not be provided on the connecting member 131, but the groove structure may be directly provided on the cavity wall of the sliding cavity 111, so that the guide cavity 132 is formed by enclosing the connecting member 131 and the groove structure.

[0054] Please refer to Figure 5 and Figure 6 In one embodiment of the present application, the elastic member 135 is defined to have a first end 136 and a second end 137, and the first end 136 is arranged close to the connecting port 113; a limiting rib 112 is convexly provided on the cavity wall of the sliding cavity 111, and the limiting rib 112 extends into the mounting groove 133 and contacts the side of the first end 136 away from the second end 137, and the side of the second end 137 away from the first end 136 contacts the groove wall of the mounting groove 133.

[0055] The limiting rib 112 contacts the side of the first end 136 away from the second end 137, that is, the limiting rib 112 can be fixed to the first end 136 of the elastic member 135, or can be abutted. Similarly, the side of the second end 137 away from the first end 136 contacts the groove wall of the installation groove 133, that is, the second end 137 of the elastic member 135 can be fixed to the groove wall of the installation groove 133, or can be abutted.

[0056] In this embodiment, the limiting rib 112 is convexly provided on the cavity of the sliding cavity 111, so that it can better correspond to the elastic member 135, thereby facilitating the establishment of a connection between the elastic member 135 and the mounting carrier 11. At the same time, it is also convenient for the subsequent user to drive the mounting carrier 11 to slide relative to the connecting member 131, and the limiting rib 112 can squeeze the elastic member 135, so that the elastic member 135 generates a corresponding elastic force to achieve stable wearing of the head-mounted device 100 on the user's head. When the second end 137 of the elastic member 135 contacts the groove wall of the mounting groove 133, the groove wall of the mounting groove 133 can be directly used to achieve the limiting installation of the elastic member 135.

[0057] Please refer to Figures 3 to 5 In one embodiment of the present application, the mounting carrier 11 is further provided with a battery cavity 114, and the battery cavity 114 is used to accommodate the battery 70; the connecting member 131 is further provided with a wire passage 134, and the wire passage 134 and the mounting groove 133 are arranged side by side, and one end of the wire passage 134 passes through the connecting member 131 located outside the sliding cavity 111, and the other end is connected to the battery cavity 114.

[0058] In this embodiment, the battery cavity 114 can provide space for installing and accommodating the battery 70. The connector 131 is also provided with a wire-passing channel 134 arranged side by side with the installation groove 133, so that the connector 131 can be used not only to adjust the size of the wearing space 90 of the head-mounted device 100, but also to arrange the connecting wires connecting the host 30 and the battery 70 through the wire-passing channel 134, so as to improve the regularity and safety of the arrangement of the connecting wires.

[0059] Please refer to Figure 7In one embodiment of the present application, the number of the mounting grooves 133 is two, the telescopic assembly 13 includes two elastic members 135 , each elastic member 135 is disposed in one mounting groove 133 , and the wire passage 134 is located between the two mounting grooves 133 .

[0060] In this embodiment, the telescopic component 13 includes two elastic members 135, which is conducive to improving the telescopic effect of the telescopic component 13, so as to increase the range of subsequent adjustment of the size of the wearing space 90 of the head-mounted device 100. By setting two installation grooves 133 for installing and accommodating the elastic member 135 on both sides of the wire-passing channel 134, the uniformity of the distribution of the elastic member 135 on the connecting member 131 can be improved, so that the elastic force of the elastic member 135 can be more uniformly and stably applied to the user's head. The two installation grooves 133 can be both set on the inner side or the outer side of the connecting member 131. Of course, the two installation grooves 133 can also be respectively set on the inner side and the outer side of the connecting member 131, and in this case, the two installation grooves 133 can also be set back to back.

[0061] Please refer to Figure 4 and Figure 5 In one embodiment of the present application, the sliding cavities 111 corresponding to the two connecting members 131 are connected, and the two sliding cavities 111 are also connected to the battery cavity 114 .

[0062] In this embodiment, the sliding cavities 111 corresponding to the two connectors 131 are connected and connected to the battery cavity 114, so that a connected space can be formed inside the mounting carrier 11, which is conducive to improving the convenience of its processing and forming. In order to facilitate the wiring channel introduced to be connected to the battery cavity 114, the end of the connector 131 away from the connecting port 113 can be located in the battery cavity 114.

[0063] Please refer to Figures 3 to 5 ,as well as Figure 7 In one embodiment of the present application, the mounting carrier 11 includes a first shell 115 and a second shell 116 . The second shell 116 is connected to the first shell 115 , and is enclosed with the first shell 115 to form a sliding cavity 111 and a communication port 113 .

[0064] In this embodiment, the mounting carrier 11 is split into the first shell 115 and the second shell 116, so that the two can be manufactured separately and independently, and then assembled together to form the sliding cavity 111, the connecting port 113 and the battery cavity 114 described above. The structure of the first shell 115 and the second shell 116 formed by splitting is more convenient than that of the mounting carrier 11 as a whole, which is conducive to improving the convenience of processing and forming the sliding cavity 111, the connecting port 113 and the battery cavity 114.

[0065] Please refer to Figure 4 In one embodiment of the present application, the mounting carrier 11 is an arc-shaped structure.

[0066] In this embodiment, the mounting carrier 11 is configured to be in an arc shape so that it can better fit the user's head, thereby improving the wearing stability of the head mounted device 100 on the user's head. Similarly, the connecting member 131 can also be configured to be in an arc shape.

[0067] In an embodiment of the present application, the connecting member 131 is made of thermoplastic polyurethane elastomer.

[0068] In this embodiment, the material of the connector 131 is set to be a thermoplastic polyurethane elastomer, so that the connector 131 can have a high mechanical strength and is not easy to be broken or damaged, so that the head mounted device 100 can be stably worn on the user's head. At the same time, the connector 131 can also have a certain elasticity, so that when it contacts the user's head, it will not give the user a sense of excessive squeezing, which is conducive to improving the wearing comfort of the head mounted device 100.

[0069] Please refer to Figure 5 and Figure 6 In one embodiment of the present application, the elastic member 135 is a spring.

[0070] In this embodiment, the elastic member 135 is set as a spring, which can make the elastic member 135 have good elasticity so that the head mounted device 100 can generate the required wearing force. On the other hand, the elastic member 135 is a standard part, which is easy to obtain and relatively inexpensive, which is conducive to reducing manufacturing costs.

[0071] The present application also proposes a head-mounted device 100, which includes a host 30, temples 50 and a telescopic adjustment mechanism 10. The specific structure of the telescopic adjustment mechanism 10 refers to the above embodiment. Since the head-mounted device 100 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. Among them, the ends of the two connecting members 131 in the telescopic adjustment mechanism 10 away from the mounting carrier 11 are respectively connected to the ends of the two temples 50 away from the host 30. In addition, the head-mounted device 100 can be an AR device, and of course it can also be a VR device.

[0072] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the inventive concept of the present application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A telescopic adjustment mechanism, applied to a head-mounted device, characterized in that: The telescopic adjustment mechanism comprises: Mounting carrier; and A telescopic component, wherein the two telescopic components are arranged at opposite ends of the mounting carrier, and the telescopic component includes a connecting piece and an elastic piece. The connecting piece is slidably arranged on the mounting carrier and is surrounded by the mounting carrier to form a guide cavity. The guide cavity is extended along the sliding track of the connecting piece. The elastic piece is arranged in the guide cavity, and the opposite ends of the elastic piece are respectively connected to the mounting carrier and the connecting piece.

2. The telescopic adjustment mechanism according to claim 1, characterized in that: The mounting carrier is provided with a sliding cavity, and the mounting carrier is also provided with a communication port communicating with the sliding cavity; The connecting piece is slidably disposed in the sliding cavity and partially extends out of the communicating port. The connecting piece and the cavity wall of the sliding cavity enclose the guiding cavity.

3. The telescopic adjustment mechanism according to claim 2, characterized in that: The connecting member located in the sliding cavity is provided with a mounting groove, and the mounting groove is extended along the sliding track of the connecting member; The installation groove and the cavity wall of the sliding cavity enclose the guide cavity, and the elastic member is arranged in the installation groove.

4. The telescopic adjustment mechanism according to claim 3, characterized in that: The elastic member is defined to have a first end and a second end, wherein the first end is disposed close to the communication port; The cavity wall of the sliding cavity is convexly provided with a limiting rib, which extends into the installation groove and contacts the side of the first end away from the second end, and the side of the second end away from the first end contacts the groove wall of the installation groove.

5. The telescopic adjustment mechanism according to claim 3, characterized in that: The mounting carrier is also provided with a battery cavity, and the battery cavity is used to accommodate a battery; The connecting piece is also provided with a wire-passing channel, and the wire-passing channel and the mounting groove are arranged side by side. One end of the wire-passing channel passes through the connecting piece outside the sliding cavity, and the other end is connected to the battery cavity.

6. The telescopic adjustment mechanism according to claim 5, characterized in that: The number of the mounting slots is two, the telescopic assembly includes two elastic members, each of the elastic members is arranged in one of the mounting slots, and the wire-passing channel is located between the two mounting slots.

7. The telescopic adjustment mechanism according to claim 5, characterized in that: The sliding cavities corresponding to the two connecting members are connected, and the two sliding cavities are also connected to the battery cavity.

8. The telescopic adjustment mechanism according to claim 2, characterized in that: The mounting carrier includes a first shell and a second shell. The second shell is connected to the first shell and encloses the first shell to form the sliding cavity and the communication port.

9. The telescopic adjustment mechanism according to any one of claims 1 to 8, characterized in that: The installation carrier is an arc-shaped structure; And / or, the connecting member is an arc-shaped structure; And / or, the material of the connecting piece is thermoplastic polyurethane elastomer; And / or, the elastic member is a spring.

10. A head mounted device, characterized in that: include: Host; Temples, two temples are respectively arranged at two opposite ends of the mainframe; as well as The telescopic adjustment mechanism is the telescopic adjustment mechanism as described in any one of claims 1 to 9, wherein the ends of the two connecting members in the telescopic adjustment mechanism away from the mounting carrier are respectively connected to the ends of the two temples away from the host.

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