High-performance chair armrest

Abstract

The utility model relates to the technical field of chairs, in particular to a high-performance chair armrest which comprises a bracket assembly, an armrest assembly and an arm column, a height adjusting module is mounted in the bracket assembly; the height adjusting module comprises a connecting rod, a key module and a lock pin; when the key module is pressed / loosened, the lock pin is linked with the key module and slides on a guide groove in the bracket shell to loosen or clamp the arm column. The armrest assembly comprises a lower wear-resisting piece provided with a radian groove, an armrest cushion module provided with a straight groove in the lower end face, and a sliding adjusting module. Corresponding force is applied to the armrest cushion module, and the armrest cushion module correspondingly moves in the direction of the straight groove or the radian groove; a plurality of column arm height clamping grooves which are correspondingly clamped with the lock pins and are different in height are formed in one side face of the arm column, one end of the arm column is inserted into the bracket shell, and the bracket assembly is clamped and fixed through the column arm height clamping grooves. The height-adjustable handrail has the advantages of simple structure and high performance, and can overcome the problem that the height adjustment is difficult to control due to complex appearance and shape of the handrail.

Description

Technical Field

[0001] The utility model relates to the technical field of chairs, in particular to a high-performance chair armrest. Background Art

[0002] There are various types of chairs with armrests on the market, which only have the hand support function and are relatively simple in function and cannot satisfy the adjustment function of users during use.

[0003] In order to overcome the above defects, chairs with adjustable armrests in direction or height have appeared on the market, but most of them are inconvenient to adjust or have too strong adjustment setbacks during use, and the adjustment is not smooth and soft, which greatly reduces the comfort during use, affects the physical feeling of use, and reduces the quality of the chair. In addition, when the armrest has a complex appearance and shape, it is difficult to achieve its adjustment performance.

[0004] Therefore, it is urgent to provide the above-mentioned defects to overcome the above-mentioned defects. Utility Model Content

[0005] The main purpose of the utility model is to provide a high-performance chair armrest, which has a simple structure and high performance and can overcome the problem that the height adjustment of the armrest is difficult to control due to its complex appearance and shape.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is a high-performance chair armrest, comprising: a bracket assembly, an armrest assembly and an arm column;

[0007] A height adjustment module is installed in the bracket assembly; the height adjustment module includes: a connecting rod installed in the bracket housing, a key module penetrating the bracket housing and connected to one end of the connecting rod, and a locking pin installed in the bracket housing and connected to the other end of the connecting rod; when the key module is pressed / released, the locking pin is linked with it and slides on a guide groove in the bracket housing to release or clamp the arm column;

[0008] The armrest assembly comprises: a lower wear-resistant sheet mounted on the upper end surface of the bracket assembly and formed with an arc groove in a left-right direction, an armrest pad module formed with a straight groove in a front-back direction on the lower end surface, and a sliding adjustment module penetrating the straight groove and the arc groove, one end of which is clamped in the armrest pad module and the other end of which is clamped in the lower wear-resistant sheet; when a corresponding force is applied to the armrest pad module, the armrest pad module moves accordingly along the direction of the straight groove or the arc groove;

[0009] A plurality of column arm height slots of different heights are formed on one side surface of the arm column and are correspondingly engaged with the locking pins. One end of the arm column is inserted into the bracket housing, and the bracket assembly is fixed by the column arm height slots.

[0010] Preferably, the sliding adjustment module includes: a sliding plate structure installed in the armrest pad module and having a width greater than the width of the straight groove at its longest point, a sliding column structure having one end fixed to the sliding plate structure and the other end of which is clamped by a protruding ring to limit the position of the lower wear-resistant plate and clamped to the side of the lower wear-resistant plate facing the bracket assembly.

[0011] Preferably, the snap-on sliding column structure includes: a nut fixing the sliding plate structure at one end, a screw passing through the straight groove and the arc groove for installation at the other end, and a washer protruding from one end toward the bracket assembly and a sliding washer sleeve for mounting the screw; the diameter of the washer is larger than the width of the arc groove.

[0012] Preferably, the sliding plate structure includes: an upper friction plate installed on the straight groove and arranged in the armrest pad module, and a pad spring sheet installed on the upper friction plate and positioned by a pressure plate, and forming friction force to position the armrest assembly when sliding.

[0013] Preferably, two abutment grooves are protruded on the liner spring sheet near the left and right side edges toward the upper friction plate, and each of the abutment grooves is parallel to the straight groove.

[0014] Preferably, the button module includes: a height adjustment button partially inserted into the bracket shell and having a slot formed on one side for clamping the connecting rod, and an elastic structure installed in the height adjustment button to form an elastic force opposite to the pressing force when the height adjustment button is pressed.

[0015] Preferably, the height adjustment button is limited in the bracket housing by a pull nail, and a circular groove for clamping one end of the elastic structure is concavely formed on an upward surface of the height adjustment button.

[0016] Preferably, the guide groove is inclined toward the arm column.

[0017] Preferably, the locking pin passes through and is installed in the guide groove, and one end of the locking pin is formed with a through hole for clamping the connecting rod, and the other end is formed as a protruding clamping positioning portion that is correspondingly matched with each column arm height clamping groove for clamping and fixing.

[0018] Preferably, the locking pin and the button module are respectively mounted on two sides of the connecting rod.

[0019] The utility model provides a high-performance chair armrest. When the button module is pressed, the connecting rod is pushed by the button module, and the locking pin is linked with the connecting rod to slide on the guide groove in the direction of the connecting rod to disengage from the connection with the column arm height slot. After the armrest assembly is pulled up or pressed down, the button module is released. The elastic force of the connecting rod is restored to eject the button module and push the locking pin to engage with the column arm height slot, thereby completing the height adjustment function. A force is applied to the armrest pad module along the straight groove or the arc groove, and the armrest pad module slides forward and backward along the straight groove relative to the sliding adjustment module, or is driven by the sliding adjustment module to slide or swing left and right in the arc groove. The utility model has a simple structure and high performance and overcomes the problem that the height adjustment of the armrest is difficult to control due to its complex appearance and shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a structural schematic diagram of an embodiment of a high-performance chair armrest.

[0021] Figure 2 for Figure 1 A structural schematic diagram of .

[0022] Figure 3 It is a schematic diagram of the structural decomposition of the bracket assembly of this embodiment.

[0023] Figure 4 It is a schematic diagram of the structural decomposition of the armrest assembly of this embodiment.

[0024] Description of the figure numbers in the manual:

[0025] 1-bracket assembly, 11-bracket housing, b 1-guide groove, 12-height adjustment module, a1-connecting rod, a2-button module, a3-locking pin, 2-armrest assembly, 21-lower wear-resistant plate, c-arc groove, 22-armrest pad module, d-straight groove, 23-sliding adjustment module, 231-sliding plate structure, e 1-upper friction plate, e2-pad spring sheet, e3-pressure plate, 232-sliding column structure, 3-arm column, 31-column arm height slot. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] It should be noted that when an element is referred to as being “connected to” or “disposed on” another element, it can be directly on the other element or indirectly on the other element.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0030] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 this application can be understood according to specific circumstances.

[0031] See also Figures 1 to 4, a high-performance chair armrest of this embodiment includes: a bracket assembly 1, an armrest assembly 2 and an arm column 3, wherein the armrest assembly 2 can be movably mounted on the bracket assembly 1, and the arm column 3 can be inserted into the bracket assembly 1 with adjustable height. Specifically, a height adjustment module 12 is installed in the bracket assembly 1; the height adjustment module 12 includes: a connecting rod a1 installed in the bracket shell 11, a key module a2 that penetrates the bracket shell 11 and is connected to one end of the connecting rod a1, and a lock pin a3 installed in the bracket shell 11 and connected to the other end of the connecting rod a1; when the key module a2 is pressed / released, the lock pin a3 is linked with it and is locked in a guide groove b in the bracket shell 11. 1 slides on the upper side to release or clamp the arm column 3; the armrest assembly 2 comprises: a lower wear-resistant sheet 21 mounted on the upper end surface of the bracket assembly 1 and formed with an arc groove c in a left-right direction, an armrest pad module 22 formed with a straight groove d in a front-back direction on the lower end surface, and a sliding adjustment module 23 that penetrates the straight groove d and the arc groove c, one end of which is clamped in the armrest pad module 22 and the other end of which is clamped in the lower wear-resistant sheet 21; a corresponding force is applied to the armrest pad module 22, and the armrest pad module 22 moves accordingly along the direction of the straight groove d or the arc groove c; a plurality of column arm height clamping grooves 31 of different heights that are correspondingly clamped with the locking pin a3 are formed on one side surface of the arm column 3, one end of the arm column 3 is inserted into the bracket housing 11, and the bracket assembly 2 is clamped and fixed by the column arm height clamping groove 31. Furthermore, there are two arc grooves c, which are formed on the lower wear-resistant plate 21 in parallel with each other.

[0032] In a preferred embodiment, the guide groove b1 is inclined toward the arm column 3, the lock pin a3 passes through and is installed in the guide groove a, and one end of the lock pin a3 is formed with a through hole for engaging the connecting rod a1, and the other end is formed as a protruding engaging and positioning portion that is correspondingly matched and engaged with each of the column arm height engaging grooves 31. The lock pin a3 and the button module a2 are respectively installed on both sides of the connecting rod a1. Specifically, the bracket shell 11 is assembled into a structure with a built-in mounting cavity and a roughly arc-shaped structure, the button module a2 is installed at one end of the bracket shell 11, and an inner liner formed with the guide groove b1 is installed in the other end, one end of the connecting rod a1 is connected to the button module a2, and the other end passes through the through hole of the lock pin a3, and the lock pin a3 is inserted into the guide groove b1. More specifically, the button module a2 includes: a height adjustment button that is partially inserted into the bracket shell 11 and has a slot formed on one side that is engaged with the connecting rod a1, and an elastic structure that is installed in the height adjustment button and forms an elastic force opposite to the pressing force when the height adjustment button is pressed; the height adjustment button is limited in the bracket shell by a pull pin, and a circular groove is concavely formed on the upward side of the height adjustment button to engage with one end of the elastic structure. Pressing the height adjustment button will apply a force to the connecting rod a1. At this time, the other end of the connecting rod a1 moves toward the height adjustment button due to the force relationship, driving the locking pin a3 to slide in the guide groove b1. At this time, the locking pin a3 and the column arm height slot 31 are released from the engagement, and the bracket assembly 1 and the arm column 3 are relatively slid. When the height adjustment button is released, the connecting rod a1 elastically recovers and pushes out the height adjustment button, and the other end of the connecting rod a1 drives the locking pin a3 to move in the guide groove b1 toward the column arm height slot 31 and engages with the column arm height slot 31 of the corresponding height, thereby achieving the purpose of height adjustment of this product. The structural design is simple and reasonable.

[0033] In a preferred embodiment, the sliding adjustment module 23 includes: a sliding plate structure 231 installed in the armrest pad module 22 and having a width greater than the width of the straight groove d at its longest width, and a clamping sliding column structure 232 having one end fixed to the sliding plate structure 231 and the other end clamped to the lower wear-resistant plate by a protruding ring to limit the position of the lower wear-resistant plate. Specifically, the clamping sliding column structure 232 includes: a screw having a nut at one end to fix the sliding plate structure 231 and the other end passing through the straight groove d and the arc groove c for installation, and a sliding washer sleeve having a washer protruding from one end toward the bracket assembly 1 and sleeved with the screw; the diameter of the washer is greater than the width of the arc groove c; the sliding plate structure 231 includes: an upper friction plate e1 installed on the straight groove d and provided in the armrest pad module 22, which is pressed and positioned on the upper part by a pressure plate e3 The pad spring piece e2 on the friction plate e1 forms friction force to position the armrest assembly 2 when sliding. More specifically, two abutment grooves are convexly provided on the pad spring piece e2 near the left and right sides toward the upper friction plate e1, and each of the abutment grooves is parallel to the straight groove d. This structural setting enables the sliding adjustment module 23 to generate friction elastic force after the armrest pad module 22 moves in the direction of the straight groove d or the arc groove c, so that after the external force is removed, the armrest pad module 22 can be positioned at the current position where the external force is removed. Furthermore, the straight groove d and the arc groove c are respectively formed vertically on the bottom end of the armrest pad module 22 and the lower wear-resistant sheet 21, and the arc groove c is set in an arc-shaped structure, so that the moving direction of the armrest pad module 22 also has a swinging effect.

[0034] Push the armrest pad module 22 in the front-to-back direction, and the sliding plate structure 231 is subjected to force to make it slide relative to the sliding adjustment module 23 on the straight groove d, thereby making the product form a forward and backward movement effect. During the sliding process, friction is formed between the cushion spring sheet e2 and the upper friction plate e1, so that when the external force is removed, the armrest pad module 22 is positioned due to the friction, so that the product can be adjusted to the corresponding position forward and backward. Push the armrest pad module 22 in the left-right direction, and the armrest pad module 22 pushes the sliding adjustment module 23 to slide along the arc groove c. Since the arc groove c is set to an arc shape, the sliding effect of the armrest pad module 22 can be a left / right sliding or swinging effect. After the external force is removed, the friction formed by the cushion spring sheet e2 positions the armrest pad module 22, so that the product has the function of moving, positioning and adjusting.

[0035] It can be seen from the above description that the utility model has a simple structure, high performance and overcomes the problem that the height adjustment of the armrest is difficult to control due to its complex appearance and shape.

[0036] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-performance chair armrest, characterized in that: include: Bracket assembly, handrail assembly and arm column; A height adjustment module is installed in the bracket assembly; The height adjustment module comprises: a connecting rod installed in the bracket housing, a key module penetrating the bracket housing and connected to one end of the connecting rod, and a locking pin installed in the bracket housing and connected to the other end of the connecting rod; when the key module is pressed / released, the locking pin is linked with it and slides on a guide groove in the bracket housing to release or clamp the arm column; The armrest assembly comprises: a lower wear-resistant sheet mounted on the upper end surface of the bracket assembly and formed with an arc groove in a left-right direction, an armrest pad module formed with a straight groove in a front-back direction on the lower end surface, and a sliding adjustment module penetrating the straight groove and the arc groove, one end of which is clamped in the armrest pad module and the other end of which is clamped in the lower wear-resistant sheet; when a corresponding force is applied to the armrest pad module, the armrest pad module moves accordingly along the direction of the straight groove or the arc groove; A plurality of column arm height slots of different heights are formed on one side surface of the arm column and are correspondingly engaged with the locking pins. One end of the arm column is inserted into the bracket housing, and the bracket assembly is fixed by the column arm height slots.

2. The high-performance chair armrest according to claim 1, characterized in that: The sliding adjustment module includes: a sliding plate structure installed in the armrest pad module and having a width greater than the width of the straight groove at its longest point, a sliding column structure having one end fixed to the sliding plate structure and the other end of which is clamped by a protruding ring to limit the position of the lower wear-resistant plate and clamped to the side of the lower wear-resistant plate facing the bracket assembly.

3. The high performance chair armrest according to claim 2, characterized in that: The snap-on sliding column structure includes: a nut at one end fixing the sliding plate structure, a screw at the other end penetrating the straight groove and the arc groove for installation, and a sliding washer sleeve protruding from one end toward the bracket assembly and sleeved with the screw; the diameter of the washer is greater than the width of the arc groove.

4. The high-performance chair armrest according to claim 2 or 3, characterized in that: The sliding plate structure includes: an upper friction plate installed on the straight groove and arranged in the armrest pad module, and a pad spring sheet installed on the upper friction plate and positioned by a pressure plate, and forming friction force to position the armrest assembly when sliding.

5. The high performance chair armrest according to claim 4, characterized in that: Two abutment grooves are protruded on the liner spring sheet near the left and right sides toward the upper friction plate, and each of the abutment grooves is parallel to the straight groove.

6. The high performance chair armrest according to claim 1, characterized in that: The button module includes: a height adjustment button partially inserted into the bracket shell, a slot formed on one side of which is engaged with the connecting rod, and an elastic structure installed in the height adjustment button to form an elastic force opposite to the pressing force when the height adjustment button is pressed.

7. The high performance chair armrest according to claim 6, characterized in that: The height adjustment button is limited in the bracket housing by a pull nail, and a circular groove for clamping one end of the elastic structure is concavely formed on an upward surface of the height adjustment button.

8. The high performance chair armrest according to claim 1, 2, 3, 5, 6 or 7, characterized in that: The guide groove is inclined toward the arm column.

9. The high performance chair armrest according to claim 8, characterized in that: The locking pin passes through and is installed in the guide groove, and one end of the locking pin is formed with a through hole for clamping the connecting rod, and the other end is formed as a protruding clamping positioning portion that is correspondingly matched with each column arm height clamping groove for clamping and fixing.

10. The high performance chair armrest according to claim 1, characterized in that: The locking pin and the button module are respectively mounted on two sides of the connecting rod.

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