Adjustable armrest

Abstract

The utility model discloses an adjustable handrail. The adjustable handrail comprises a middle rod which is hollow in the axial direction; the two connectors are detachably installed at the two ends of the middle rod respectively, one connector is inserted into the middle rod, and the installation depth of the connector can be adjusted in the axial direction of the middle rod. The locking piece is located in the middle rod and installed on the end portion of the connector with the installation depth capable of being adjusted. The locking piece is sleeved with the locking sleeve, and in the process that the locking piece is installed on the corresponding connector, the locking piece has acting force for driving the locking sleeve to expand on the locking sleeve, so that the locking sleeve abuts against the inner wall of the middle rod; through cooperation of the connector and the middle rod, the adjustable handrail can adjust the overall installation length, and the adjustable handrail is suitable for various products and high in universality and universality. The locking piece and the locking sleeve are hidden in the middle rod to fix the connector, the external space of the middle rod is not occupied, and the problems of interference with a product and the like can be avoided when the locking piece and the locking sleeve are matched with the product for installation and use.

Description

Technical Field

[0001] The utility model relates to the technical field of armrests, in particular to an adjustable armrest. Background Art

[0002] Different products such as doors, windows, cabinets, beds, etc. often use handrail structures. Handrails are usually customized to the corresponding size according to the application scenario. This leads to a wide variety of handrails and low versatility. If the drilling position for installing the handrail on the product deviates, the handrail cannot be installed normally. Utility Model Content

[0003] The utility model aims to solve one of the above-mentioned technical problems in the related art at least to a certain extent. To this end, the utility model provides an adjustable armrest.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] The adjustable armrest according to the first embodiment of the utility model comprises:

[0006] An intermediate rod, wherein the intermediate rod is hollow along the axial direction;

[0007] Two connectors, the two connectors are detachably mounted at two ends of the intermediate rod, one of the connectors is plugged into the intermediate rod and can adjust the installation depth along the axial direction of the intermediate rod;

[0008] A locking member, the locking member being located in the intermediate rod and mounted on the end of the connector capable of adjusting the installation depth;

[0009] The locking sleeve is sleeved on the locking member. When the locking member is installed on the corresponding connecting head, the locking member exerts a force on the locking sleeve to drive the locking sleeve to expand, so that the locking sleeve abuts against the inner wall of the intermediate rod.

[0010] The adjustable armrest according to the embodiment of the utility model has at least the following beneficial effects: by utilizing the cooperation between the connecting head and the middle rod, the adjustable armrest can adjust the overall installation length, is applicable to a variety of products, has high versatility and strong commonality; the locking piece and the locking sleeve are hidden in the middle rod to fix the connecting head, do not occupy the external space of the middle rod, and can avoid interference with the product when installed and used in conjunction with the product.

[0011] According to some embodiments of the utility model, the locking member includes a screw segment and a polished rod segment, the outer diameter of the polished rod segment is larger than the outer diameter of the screw segment, the screw segment is connected to the inside of the connector via a threaded connection, the locking sleeve is sleeved on the polished rod segment, and the polished rod segment has an expansion force on the locking sleeve.

[0012] According to some embodiments of the utility model, a polygonal hole is provided on the end surface of the polished rod segment away from the screw rod segment.

[0013] According to some embodiments of the present invention, the axial cross-section of the locking sleeve is conical, the outer diameter of the bare rod section is larger than the minimum inner diameter of the locking sleeve, and the end of the locking sleeve can abut against the end of the connector.

[0014] According to some embodiments of the present invention, a through groove is formed on the locking sleeve, and the through groove extends axially from the small-diameter end of the locking sleeve.

[0015] According to some embodiments of the utility model, the interior of the intermediate rod is provided with an internal thread, the end of the connecting head is provided with an external thread, and the connecting head and the intermediate rod are screwed together through threads.

[0016] According to some embodiments of the present utility model, the connecting head includes a connecting rod and an elbow seat, one end of the connecting rod is connected to the elbow seat, and the other end of the connecting rod is connected to the middle rod.

[0017] According to some embodiments of the utility model, the elbow seat includes a bent pipe and a base, and two ends of the bent pipe are respectively connected to the connecting rod and the base.

[0018] According to some embodiments of the utility model, a closed ring is further included, a gap exists between the connecting rod and the intermediate rod, the closed ring is sleeved on the connecting rod, and at least a part of the ring body of the closed ring is inserted into the gap.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 yes Figure 1 Schematic diagram of partial structural decomposition;

[0023] Figure 3 yes Figure 1 A partial structural cross-sectional view on the right side;

[0024] Figure 4 yes Figure 1Schematic diagram of the structural breakdown of the connector, locking piece and locking sleeve on the right.

[0025] Reference numerals: intermediate rod 100 ; connector 200 ; connecting rod 210 ; elbow seat 220 ; elbow 221 ; base 222 ; locking member 300 ; screw rod segment 310 ; smooth rod segment 320 ; polygonal hole 321 ; locking sleeve 400 ; through groove 410 ; closed ring 500 . DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] The utility model relates to an adjustable armrest, which comprises an intermediate rod 100, a connecting head 200, a locking piece 300 and a locking sleeve 400.

[0028] like Figure 1 , Figure 2 and Figure 3As shown, the middle rod 100 is set as a long straight rod body structure, and the interior of the middle rod 100 is hollow along the axial direction. Two connectors 200 are detachably installed at both ends of the middle rod 100. One of the two connectors 200 is inserted into the middle rod 100 from one end of the middle rod 100, and the connector 200 can adjust the installation depth relative to the middle rod 100 along the axial direction of the middle rod 100. The connector 200 and the middle rod 100 can be connected by direct insertion, threaded connection, etc. In this embodiment, in the direction shown in the figure, the connector 200 on the right side is connected to the right end of the middle rod 100 as one of the adjustable installation depths. The two connectors 200 can be set to the same structure, that is, the other (left) connector 200 can also be set to the same structure as the (right) connector 200 with adjustable installation depth; or the connector 200 on the left side can have different structures from the connector 200 on the right side. After the left connector 200 is installed on the middle rod 100, it can be directly fixed without adjusting the relative installation position. For example, the left connector 200 adopts the same structure as the right connector 200. After the left connector 200 is inserted into the middle rod 100, it is directly plugged into the preset position and then locked by accessories such as pins and bolts. For example, the left connector 200 has a different structure from the right connector 200. The left connector 200 is fixedly connected to the middle rod 100 by plugging, clamping, sleeve connection, etc. The locking member 300 is located in the middle rod 100, and the locking member 300 is connected to the end of the connector 200 that can adjust the installation depth (right side). The locking sleeve 400 is sleeved on the locking member 300, and the locking sleeve 400 has a certain elastic expansion and contraction ability. When the locking member 300 is installed on the corresponding connector 200, the locking member 300 exerts a force on the locking sleeve 400, which drives the locking sleeve 400 to expand in the middle rod 100. The expanded locking sleeve 400 abuts against the inner wall of the middle rod 100, thereby fixing the connector 200 connected to the locking member 300 at the current position of the middle rod 100. The locking sleeve 400 can be, but is not limited to, a circular bulge-shaped structure, and the locking member 300 cooperates with the connector 200 to compress the locking sleeve 400, so that the locking sleeve 400 bulges radially.

[0029] During actual installation, the locking sleeve 400 is sleeved on the locking member 300, and the locking member 300 is pre-installed on the connector 200. At this time, the locking sleeve 400 does not expand. The connector 200 equipped with the locking member 300 is inserted into one end of the intermediate rod 100, and the connector 200 is adjusted to the required installation depth. Use a tool to extend into the intermediate rod 100 from the other end of the intermediate rod 100, and further install and fix the locking member 300 relative to the connector 200. At the same time, the locking sleeve 400 expands and abuts against the inner wall of the intermediate rod 100, thereby fixing the connector 200 at the current position. Take out the tool and install another connector 200 on the end of the intermediate rod 100. Finally, the adjustable handrail is installed to the door, window, cabinet, bedside and other places through the connector 200 for use. By using the connection head 200 and the middle rod 100, the adjustable armrest can adjust the overall installation length, and is applicable to a variety of products, with high versatility and strong commonality. In addition, the locking member 300 and the locking sleeve 400 are hidden in the middle rod 100 to fix the connection head 200, and do not occupy the external space of the middle rod 100, and can avoid interference with the product when used in conjunction with the product installation.

[0030] In some specific embodiments of the present invention, Figure 3 and Figure 4As shown, the locking member 300 includes a screw segment 310 and a polished rod segment 320. The outer diameter of the polished rod segment 320 is larger than the outer diameter of the screw segment 310. The polished rod segment 320 and the screw segment 310 are in a stepped shaft structure. The entirety or one end of the connector 200 is hollow inside, and an internal thread is arranged in the hollow. The locking member 300 is threadedly connected to the connector 200 through the screw segment 310. The locking sleeve 400 is sleeved on the polished rod segment 320. During the installation process of the screw segment 310 being screwed into the locking member 300, the polished rod segment 320 applies a force to the locking sleeve 400 to expand the locking sleeve 400. The polished rod segment 320 can be a locking sleeve 400 that is squeezed and expanded toward the end of the connector 200. Alternatively, the polished rod segment 320 is arranged in a conical shape, and the locking sleeve 400 is gradually radially expanded when the polished rod segment 320 moves axially relative to the intermediate rod 100. Among them, a polygonal hole 321 is provided on the end surface of the polished rod section 320 away from the screw rod section 310. The polygonal hole 321 can be a triangular hole, a quadrangular hole, a hexagonal hole, etc. For example, if the polygonal hole 321 is a hexagonal hole, a corresponding hexagonal key can be used to extend into the middle rod 100, and the locking member 300 can be rotated and installed in conjunction with the polygonal hole 321. In this embodiment, the axial cross-section of the locking sleeve 400 is conical. The outer diameter of the polished rod section 320 is greater than the minimum inner diameter of the locking sleeve 400. The end of the locking sleeve 400 can abut against the end of the connector 200. During installation, the small-diameter end of the locking sleeve 400 faces and abuts against the end of the connector 200. The locking member 300 penetrates from the large-diameter end of the locking sleeve 400 to the small-diameter end. During the penetration process, the polished rod section 320 applies a radial force to the locking sleeve 400, so that the locking sleeve 400 gradually expands radially. The locking sleeve 400 is clamped between the bare rod section 320 and the inner wall of the intermediate rod 100, thereby limiting the axial movement of the locking member 300 and the connector 200 relative to the intermediate rod 100. A through slot 410 is provided on the locking sleeve 400, and the number of the through slots is not limited, and can be one or more. The through slot 410 connects the inner and outer walls of the locking sleeve 400, and the through slot 410 extends axially from the small-diameter end of the locking sleeve 400 toward the large-diameter end, but does not penetrate the large-diameter end. The through slot 410 is used to reserve a position for the expansion and contraction of the small-diameter end of the locking sleeve 400.

[0031] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the interior of the intermediate rod 100 is provided with an internal thread, and the end of the connector 200 is provided with an external thread. The connector 200 is screwed with the intermediate rod 100 by means of a thread. The intermediate rod 100 is rotated to adjust the installation depth of the connector 200. When the locking sleeve 400 abuts against the end of the intermediate rod 100, the rotation and axial movement between the locking member 300 and the intermediate rod 100 are restricted, thereby restricting the rotation of the connector 200 relative to the intermediate rod 100 and restricting the axial movement of the connector 200 relative to the intermediate rod 100, thereby completing the positioning.

[0032] In some embodiments of the present invention, Figure 4 As shown, the connector 200 includes a connecting rod 210 and an elbow seat 220. The connecting rod 210 can be a straight rod structure. One end of the connecting rod 210 is used to connect with the elbow seat 220, and the two can be fastened with screws or threaded. The other end of the connecting rod 210 is connected to the intermediate rod 100. According to the actual installation requirements of the product, connecting rods 210 and intermediate rods 100 of different lengths are selected for use. The elbow seat 220 is fixed to the product as a support for the adjustable armrest. Among them, the elbow seat 220 includes a bend 221 and a base 222. The two ends of the bend 221 are connected to the connecting rod 210 and the base 222 respectively. The base 222 can be fixed to the product by screws or the like. The bend 221 and the base 222 can be connected to each other by screws. The connecting rod 210 and the bend 221 can be connected by screws. According to the size of the selected bend 221, the distance between the intermediate rod 100 and the product is controlled.

[0033] Furthermore, when the connecting rod 210 is inserted into the middle rod 100, there is a gap between the connecting rod 210 and the middle rod 100. During use, due to the gap, the connecting rod 210 and the middle rod 100 may shake. To this end, a closed ring 500 is sleeved on the connecting rod 210. At least a portion of the ring body of the closed ring 500 extends out along the axial direction and is inserted into the gap between the connecting rod 210 and the middle rod 100. On the one hand, the middle rod 100 is radially supported to prevent the middle rod 100 from shaking. On the other hand, the gap can be blocked at the end of the closed ring 500 to prevent external debris, dust, mosquitoes, etc. from entering the gap.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this specification, the description of reference terms such as "some specific embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An adjustable armrest, characterized in that: include: An intermediate rod (100), wherein the intermediate rod (100) is hollow along the axial direction; Two connectors (200), the two connectors (200) being detachably mounted on both ends of the intermediate rod (100), one of the connectors (200) being inserted into the intermediate rod (100) and capable of adjusting the installation depth along the axial direction of the intermediate rod (100); A locking member (300), the locking member (300) being located in the intermediate rod (100) and mounted on an end of the connecting head (200) capable of adjusting the installation depth; A locking sleeve (400) is sleeved on the locking member (300). When the locking member (300) is installed on the corresponding connecting head (200), the locking member (300) exerts a force on the locking sleeve (400) to drive the locking sleeve (400) to expand, so that the locking sleeve (400) abuts against the inner wall of the intermediate rod (100).

2. The adjustable armrest according to claim 1, characterized in that: The locking member (300) comprises a screw segment (310) and a polished rod segment (320); the outer diameter of the polished rod segment (320) is greater than the outer diameter of the screw segment (310); the screw segment (310) is connected to the interior of the connector (200) via a threaded connection; the locking sleeve (400) is sleeved on the polished rod segment (320); and the polished rod segment (320) exerts an expansion force on the locking sleeve (400).

3. The adjustable armrest according to claim 2, characterized in that: A polygonal hole (321) is provided on the end surface of the polished rod segment (320) away from the screw rod segment (310).

4. The adjustable armrest according to claim 2, characterized in that: The axial cross-section of the locking sleeve (400) is conical, the outer diameter of the bare rod section (320) is greater than the minimum inner diameter of the locking sleeve (400), and the end of the locking sleeve (400) can abut against the end of the connector (200).

5. The adjustable armrest according to claim 3, characterized in that: The locking sleeve (400) is provided with a through groove (410), and the through groove (410) extends axially from the small-diameter end of the locking sleeve (400).

6. The adjustable armrest according to claim 1, characterized in that: The interior of the intermediate rod (100) is provided with an internal thread, the end of the connecting head (200) is provided with an external thread, and the connecting head (200) and the intermediate rod (100) are screwed together via threads.

7. The adjustable armrest according to claim 1 or 6, characterized in that: The connecting head (200) comprises a connecting rod (210) and an elbow seat (220), one end of the connecting rod (210) is connected to the elbow seat (220), and the other end of the connecting rod (210) is connected to the intermediate rod (100).

8. The adjustable armrest according to claim 7, characterized in that: The elbow seat (220) comprises a curved pipe (221) and a base (222), and two ends of the curved pipe (221) are respectively connected to the connecting rod (210) and the base (222).

9. The adjustable armrest according to claim 7, characterized in that: It also comprises a closed ring (500), a gap exists between the connecting rod (210) and the intermediate rod (100), the closed ring (500) is sleeved on the connecting rod (210), and at least a part of the ring body of the closed ring (500) is inserted into the gap.

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