Electric chair with adjustable backrest

Abstract

The utility model discloses an electric chair with an adjustable backrest, which comprises a chair seat provided with pulleys at the bottom, a rear support tube is obliquely arranged on the chair seat, two armrests which are arranged in bilateral symmetry and extend forwards are connected onto the support tube, an electric push rod is fixed in the support tube, and the electric push rod is connected with the chair seat. The electric push rod is provided with a telescopic arm extending out of a pipe opening of the supporting pipe, and a backrest assembly is arranged on the telescopic arm. A switch for controlling the electric push rod to start and stop is arranged on at least one handrail; the backrest assembly comprises a backrest seat body connected with the telescopic arm, two backrest cushion blocks which are arranged in a bilateral symmetry mode are arranged on the front side of the backrest seat body, and stainless steel pipes are connected between the backrest cushion blocks and the backrest seat body. The electric chair has the characteristics of adjustable chair back height and comfortable leaning, and is complete in overall function and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture manufacturing, and more specifically, to an electric chair with an adjustable backrest. Background Art

[0002] Most chairs with backrests are not adjustable. The elasticity of the backrest is mostly given by the packaging material wrapped around it, so the cushioning effect is limited, the comfort of leaning is average, and the overall effect is not good. Therefore, the utility model proposes an electric chair with an adjustable backrest. Utility Model Content

[0003] The utility model aims to overcome the deficiencies in the prior art and to provide an electric chair with an adjustable backrest, which has the characteristics of adjustable backrest height and comfortable leaning.

[0004] In order to solve the above technical problems, the purpose of the utility model is achieved as follows: the utility model involves an electric chair with an adjustable backrest, including a seat with a pulley at the bottom, a support tube is obliquely arranged on the seat, and two armrests are connected to the support tube, which are symmetrically arranged on the left and right and extend forward. An electric push rod is fixed in the support tube, and the electric push rod has a telescopic arm extending out of the pipe mouth of the support tube, and a backrest assembly is provided on the telescopic arm; at least one of the armrests is provided with a switch for controlling the start and stop of the electric push rod.

[0005] The utility model is further configured as follows: the backrest assembly includes a backrest seat body connected to the telescopic arm, the front side of the backrest seat body is provided with two backrest cushion blocks which are symmetrically arranged on the left and right, and a stainless steel pipe is connected between the backrest cushion blocks and the backrest seat body.

[0006] The utility model is further configured as follows: a plurality of rear deformation cutting grooves extending forward are sawed on the rear side tube wall of the stainless steel tube.

[0007] The utility model is further configured as follows: a front deformation groove is arranged between two adjacent rear deformation grooves, and the front deformation groove is also sawed on the front side tube wall of the stainless steel tube.

[0008] The utility model is further configured as follows: the backrest assembly is arranged at the end of the telescopic arm.

[0009] In summary, the utility model has the following beneficial effects:

[0010] 1. The leaning height of the backrest assembly is adjustable, and the adjustment is electronically controlled and automatic, which is convenient to adjust.

[0011] 2. The two symmetrically arranged backrest cushions are elastic and comfortable to lean on. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1It is a schematic diagram of the overall side structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the top view of the structure of the backrest assembly of the utility model. DETAILED DESCRIPTION

[0014] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments, but it should be understood that these descriptions are only for further illustrating the features and advantages of the utility model, rather than limiting the patent requirements of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0015] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0016] Example 1

[0017] See also Figure 1 and Figure 2 As shown, the present embodiment involves an electric chair with an adjustable backrest, comprising a seat 1 with a pulley at the bottom, a support tube 2 is obliquely arranged at the rear on the seat 1, two armrests 3 are connected to the support tube 2 and are symmetrically arranged on the left and right and extend forward, an electric push rod (not shown) is fixed in the support tube 2, the electric push rod has a telescopic arm 4 extending out of the pipe mouth of the support tube 2, and a backrest assembly 5 is provided at the end of the telescopic arm 4; at least one of the armrests 3 is provided with a switch (not shown) for controlling the start and stop of the electric push rod.

[0018] Furthermore, the backrest assembly 5 includes a backrest seat body 51 connected to the telescopic arm 4 , and two backrest cushion blocks 52 symmetrically arranged on the front side of the backrest seat body 51 are provided, and a stainless steel pipe 53 is connected between the backrest cushion block 52 and the backrest seat body 51 .

[0019] In this embodiment, when the operating switch extends the electric push rod, the telescopic arm 4 moves up with the backrest assembly 5, and the backrest assembly 5 rises; when the operating switch shortens the electric push rod, the telescopic arm 4 moves down with the backrest assembly 5, and the backrest assembly 5 falls.

[0020] Example 2

[0021] See also Figure 1 and Figure 2 As shown, the electric chair with an adjustable backrest involved in this embodiment is further configured on the basis of Embodiment 1, wherein a plurality of rear deformation grooves 531 extending forward are sawed on the rear wall of the stainless steel tube 53.

[0022] Furthermore, a front deformation groove 532 is provided between two adjacent rear deformation grooves 531 , and the front deformation groove 532 is also sawn on the front tube wall of the stainless steel tube 53 .

[0023] In this embodiment, by providing a rear deformation groove 531 on the rear tube wall of the stainless steel tube 53 and a front deformation groove 532 on the front tube wall, the leaning strength is ensured while having a certain elasticity, making leaning more comfortable.

[0024] The utility model relates to an electric chair with an adjustable backrest, wherein the backrest assembly on the electric chair has an adjustable leaning height, and the adjustment is automatic and electrically controlled, so the adjustment is convenient; and two backrest cushions which are symmetrically arranged on the left and right are elastic, so the leaning is comfortable, the overall function is complete, and the practicability is strong.

[0025] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationship are based on the orientation or positional relationship actually shown, 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 orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in combination with the embodiments and according to specific circumstances.

[0026] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. An electric chair with an adjustable backrest, comprising a seat with a pulley at the bottom, characterized in that: A support tube is arranged obliquely on the seat, and two armrests are connected to the support tube, which are symmetrically arranged on the left and right and extend forward. An electric push rod is fixed in the support tube, and the electric push rod has a telescopic arm extending out of the pipe mouth of the support tube, and a backrest assembly is provided on the telescopic arm; at least one of the armrests is provided with a switch for controlling the start and stop of the electric push rod.

2. The electric chair with adjustable backrest according to claim 1, characterized in that: The backrest assembly comprises a backrest seat body connected to the telescopic arm, and two backrest cushion blocks which are symmetrically arranged on the front side of the backrest seat body are arranged, and a stainless steel pipe is connected between the backrest cushion blocks and the backrest seat body.

3. The electric chair with adjustable backrest according to claim 2, characterized in that: A plurality of rear deformation grooves extending forward are sawn on the rear side tube wall of the stainless steel tube.

4. The electric chair with adjustable backrest according to claim 3, characterized in that: A front deformation groove is arranged between two adjacent rear deformation grooves, and the front deformation groove is also sawn on the front tube wall of the stainless steel tube.

5. The electric chair with adjustable backrest according to any one of claims 1 to 4, characterized in that: The backrest assembly is arranged at the end of the telescopic arm.

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