Chassis assembly easy to operate

Abstract

The utility model provides a chassis assembly easy to operate. The chassis assembly easy to operate comprises a shell and an operating rod inserted into the shell. The operating rod is provided with an operating end and a mounting end, the operating end is operated by a user, and the mounting end is used for connecting the operating rod with the shell; the installation end is sleeved with a sleeve, the sleeve is inserted into a sliding groove formed in the shell, the sleeve and the shell are only in sliding fit, and rotation of the sleeve and the shell is limited. Therefore, when the operating rod is rotated, the operating rod is rotationally arranged relative to the sleeve and the shell, and when the operating rod is pulled, the operating rod and the sleeve synchronously slide on the shell. The sleeve is used as a control output end when the operating rod is pulled, when the operating rod rotates, the sleeve is not affected, when the operating rod is pulled, the sleeve can be driven to slide relative to the shell, it is guaranteed that two kinds of control of rotating the operating rod and pulling the operating rod do not affect each other and do not interfere with each other, and therefore the application range of control over the operating rod is wider; and two different controls with higher requirements are compatible.

Description

Technical Field

[0001] The utility model relates to the field of furniture, in particular to an easy-to-operate chassis component. Background Art

[0002] In modern office chairs, the chassis is one of the indispensable and important components. The chassis generally integrates multiple functions, such as gas rod lifting, chair back adjustment, etc.; in order to facilitate user operation and to simplify the structure of the chassis as much as possible, manufacturers generally make the operating rod into a cylinder. When the operating rod is a cylinder, the operating rod can be rotatably and slidably set on the shell. When the operating rod is pulled out, one kind of control can be achieved, such as locking and unlocking the rotation of the chair back. When the operating rod is rotated, another kind of control can be achieved, such as controlling the gas rod lifting.

[0003] However, when one of the controls of the operating lever is only compatible with sliding but interferes with rotation, a simple cylindrical operating lever will not be able to meet the requirements; for example, the rotating operating lever is used to control the lifting and lowering of the gas rod, and the pulling operating lever is used to drive the torsion spring to move. When the torsion spring is installed on the chassis shell, only one of the torsion spring arms of the torsion spring is connected to the operating lever. If the torsion spring arm is fixed to the operating lever, it will cause damage to the torsion spring arm when the operating lever is rotated, affecting its service life and possibly causing misoperation, affecting customer experience; if the torsion spring arm is only placed in a hole or groove of the operating lever, the torsion spring arm will be at risk of detaching when the operating lever is rotated. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, the utility model provides an easy-to-operate chassis component, including a shell and an operating rod inserted on the shell; the operating rod has an operating end and a mounting end, the operating end is for the user to operate, and the mounting end is used to connect the operating rod with the shell; a sleeve is sleeved on the mounting end, the sleeve is inserted in a sliding groove provided on the shell, and the sleeve and the shell only slide in cooperation, and the rotation of the two is restricted; therefore, when the operating rod is rotated, the operating rod is rotated relative to the sleeve and the shell, and when the operating rod is pulled, the operating rod and the sleeve slide synchronously on the shell; a sleeve that does not rotate relative to the shell is arranged outside the mounting end of the operating rod, and the sleeve is used as the control output end when the operating rod is pulled, and when the operating rod is rotated, the sleeve will not be affected, and when the operating rod is pulled, the sleeve can be driven to slide relative to the shell, thereby ensuring that the two controls of rotating the operating rod and pulling the operating rod do not affect each other and do not interfere with each other, thereby making the application range of the operating rod control wider and being compatible with two different controls with higher requirements.

[0005] The technical solution of the utility model is achieved in this way:

[0006] An easy-to-operate chassis assembly includes a housing and an operating rod. The operating rod is inserted into the housing. The operating rod includes an operating end and a mounting end. The mounting end is inserted into the housing and protrudes from the housing, and the operating end is located on the other side of the housing. The operating rod is a cylindrical rod. A sleeve is sleeved outside the mounting end. A sliding groove is formed on the housing, and the sleeve is inserted into the sliding groove. The sleeve and the housing are configured to limit the rotation of the sleeve relative to the housing. The operating rod is configured such that when the operating rod is rotated, the operating rod rotates relative to the sleeve and the housing, and when the operating rod is pulled, the operating rod and the sleeve slide synchronously on the housing.

[0007] The operating rod is a cylinder, and it is arranged on the housing so that it can rotate and slide. Therefore, pulling the operating rod and rotating the operating rod can each achieve a kind of control. A sleeve that does not rotate relative to the housing is sleeved outside the mounting end of the operating rod. The sleeve is used as the control output end when pulling the operating rod. When the operating rod rotates, it will not affect the sleeve. When pulling the operating rod, it can drive the sleeve to slide relative to the housing, ensuring that the two controls of rotating the operating rod and pulling the operating rod do not affect each other and do not interfere with each other, thereby making the applicable range of the operating rod control higher and compatible with two different controls with higher requirements. The operating end is for the user to operate and control the operating rod. For the convenience of the user's operation, the operating end is located on the other side of the housing and is farther away from the housing than the mounting end. The sleeve is inserted into the sliding groove and a part of it protrudes out of the housing, and the other part is located in the housing. The part remaining in the housing can be used as the control output end when pulling the operating rod.

[0008] Preferably, a limiting rotation groove is formed on the sleeve, a jack is formed on the mounting end, a locking pin is inserted into the jack, and the locking pin enters the limiting rotation groove. The locking pin is configured such that when pulling the operating rod, the locking pin drives the sleeve to slide relative to the housing, and when rotating the operating rod, the locking pin rotates in the limiting rotation groove. The synchronous sliding of the operating rod and the sleeve is realized through the locking pin, and the smooth rotation of the operating rod is realized through the movement of the locking pin in the limiting rotation groove. The rotation of the operating rod will not affect the movement of the sleeve.

[0009] Preferably, a pressing piece is fixed on the operating rod. The pressing piece is located in the housing and beside the sleeve. The pressing piece is configured such that when rotating the operating rod and when the pressing piece rotates upward, it can unlock the air rod and control the lifting of the air rod.

[0010] Preferably, a return spring is provided on the operating rod. The two spring arms of the return spring act on the pressing piece and the housing respectively. The return spring is configured to give a downward elastic force to the pressing piece. The return spring always gives a downward elastic force to the pressing piece, so that the pressing piece can lock the air rod when the operating rod is not rotated.

[0011] Preferably, the spring arm of the return spring acting on the housing is the feedback end, and the feedback end abuts against the housing. There is a protrusion on the housing, and when the operating lever is pulled, the feedback end slides over the protrusion to give the user feedback on the pulling operation. The feedback end of the return spring always abuts against the housing. When the operating lever is pulled, the return spring will pass over the protrusion to provide feedback for the pulling operation, enabling the user to determine whether the operating lever is in place, that is, whether the control operation is completed. When the pulling operation is not fully completed, the return spring can also rely on its elastic force to reach both sides of the protrusion to prevent other misoperations during the pulling control process from damaging the internal structure of the chassis. In addition, the protrusion also limits the operating lever to prevent the operating lever from moving left and right after the pulling ends, resulting in misoperations.

[0012] Preferably, the sleeve is in the shape of a triangular prism or a quadrangular prism. By the cross-sectional shapes of the sleeve and the sliding groove, the relative rotation between the sleeve and the housing is restricted, and the structure is simple and easy to implement.

[0013] Preferably, the sleeve is in the shape of a special-shaped column.

[0014] The design starting point, concept and beneficial effects of the present utility model adopting the above technical solutions are as follows:

[0015] The operating lever is a cylinder, and it is arranged on the housing so that it can rotate and slide. Therefore, each of the pulling operation of the operating lever and the rotating operation of the operating lever can achieve one kind of control. A sleeve that does not rotate relative to the housing is sleeved outside the mounting end of the operating lever. The sleeve is used as the control output end when the operating lever is pulled. When the operating lever rotates, it will not affect the sleeve. When the operating lever is pulled, it can drive the sleeve to slide relative to the housing, ensuring that the two controls of the rotating operating lever and the pulling operating lever do not affect or interfere with each other, thereby making the applicable range of the operating lever control higher and compatible with two different controls with higher requirements.

[0016] The operating end is for the user to operate and control the operating lever. For the convenience of the user's operation, the operating end is located on the other side of the housing and is farther from the housing than the mounting end.

[0017] The sleeve is inserted into the sliding groove and a part of it protrudes out of the housing, and the other part is located in the housing. The part remaining in the housing can be used as the control output end when the operating lever is pulled. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the chassis assembly of the present utility model in an embodiment;

[0019] Figure 2 is an exploded view of the operating lever and the sleeve of the present utility model in an embodiment;

[0020] Figure 3This is the top view of the chassis assembly in the embodiment of the present utility model;

[0021] Figure 4 This is the three-dimensional structural schematic diagram of the sleeve in the embodiment of the present utility model;

[0022] Figure 5 This is the three-dimensional structural schematic diagram of the housing in the embodiment of the present utility model;

[0023] Figure 6 This is the three-dimensional structural schematic diagram of the operating rod without the sleeve installed in the housing in the embodiment of the present utility model.

[0024] Each reference numeral is: housing 1; operating rod 2; operating end 21; mounting end 22; sleeve 3; sliding groove 4; handle 5; pull-push transmission member 6; mounting seat 7; limiting rotation groove 8; jack 9; locking pin 10; pressing piece 11; return spring 12; feedback end 13; protrusion 14. Detailed implementation manners

[0025] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described in detail below with reference to the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0026] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.

[0027] In the description of the present utility model, the terms "first", "second", "third", etc. are only used for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0028] The specific implementation manners of the present utility model are as follows:

[0029] In the existing chassis, the operating rod 2 is a cylinder to achieve dual control of the pulling and rotation of the operating rod 2. Among them, the rotation of the operating rod 2 is generally used to control the lifting of the gas rod, and the pulling of the operating rod 2 is also simply to insert the end of the operating rod 2 into the backrest connecting member to lock the backrest connecting member, or to disengage from the backrest connecting member, so that the backrest can rotate backward. This control method is relatively simple, but it cannot perform more complex and higher-demand controls; in this embodiment, when the operating rod 2 rotates, it controls the gas rod and is required to avoid affecting the control of pulling the operating rod 2.

[0030] Such as Figure 1 、 5, as shown in FIGS. 6, the present utility model provides an easily operable chassis assembly, which includes a housing 1 and an operating rod 2. The operating rod 2 is inserted into the housing 1. The operating rod 2 includes an operating end 21 and a mounting end 22. The mounting end 22 is inserted into the housing 1 and protrudes from the housing 1. The operating end 21 is located on the other side of the housing 1. The operating rod 2 is a cylindrical rod. A sleeve 3 is sleeved outside the mounting end 22. A sliding groove 4 is formed on the housing 1. The sleeve 3 is inserted into the sliding groove 4. The sleeve 3 and the housing 1 are configured to limit the rotation of the sleeve 3 relative to the housing 1. When the operating rod 2 is configured to rotate, the operating rod 2 is rotationally arranged relative to the sleeve 3 and the housing 1. When the operating rod 2 is pulled, the operating rod 2 and the sleeve 3 slide synchronously on the housing 1.

[0031] The operating rod 2 is a cylinder, and it is arranged on the housing 1 so that it can rotate and slide. Therefore, pulling the operating rod 2 and rotating the operating rod 2 can each achieve a kind of control. A sleeve 3 that does not rotate relative to the housing 1 is sleeved outside the mounting end 22 of the operating rod 2. The sleeve 3 is used as the control output end when the operating rod 2 is pulled. When the operating rod 2 rotates, the operating rod 2 will also rotate relative to the sleeve 3. Therefore, it will not affect the sleeve 3, and the sleeve 3 remains stationary. When the operating rod 2 is pulled, it can drive the sleeve 3 to slide relative to the housing 1, ensuring that the two controls of rotating the operating rod 2 and pulling the operating rod 2 do not affect or interfere with each other, so that the applicable range of the control of the operating rod 2 is higher and it is compatible with two different controls with higher requirements.

[0032] The operating end 21 is for the user to operate and control the operating rod 2. For the convenience of the user's operation, the operating end 21 is located on the other side of the housing 1 and is farther from the housing 1 than the mounting end 22. A bent handle 5 is provided at the operating end 21 to further facilitate the user to rotate and pull the operating rod 2.

[0033] The sleeve 3 is inserted into the sliding groove 4 and a part of it protrudes outward from the housing 1, and the other part is located in the housing 1. The part remaining in the housing 1 can be used as the control output end when the operating rod 2 is pulled. The chassis further includes a pulling transmission member 6. In this embodiment, the pulling transmission member 6 is a torsion spring. The torsion spring is rotationally arranged on a mounting seat 7 of the housing 1. One end spring arm of the torsion spring is connected to the controlled component, and the other end spring arm of the torsion spring is mounted on the sleeve 3.

[0034] Specifically, as Figure 1-4As shown, a limiting rotation groove 8 is formed in the sleeve 3, and a jack 9 is formed in the mounting end 22. A locking pin 10 is inserted into the jack 9, and the locking pin 10 enters the limiting rotation groove 8. The locking pin 10 is configured to drive the sleeve 3 to slide relative to the housing 1 when the operating rod 2 is pulled, and the locking pin 10 rotates in the limiting rotation groove 8 when the operating rod 2 is rotated; the synchronous sliding of the operating rod 2 and the sleeve 3 is realized through the locking pin 10, and the smooth rotation of the operating rod 2 is realized by the movement of the locking pin 10 in the limiting rotation groove 8, and the rotation of the operating rod 2 will not affect the movement of the sleeve 3; the spring arm of the torsion spring serving as the pulling transmission member 6 is inserted into the limiting rotation groove 8, and it will not be affected by the operating rod 2 when the operating rod 2 rotates, and when the operating rod 2 drives the sleeve 3 to slide, the torsion spring will rotate on the mounting seat 7 accordingly.

[0035] The sleeve 3 and the housing 1 achieve the sliding-only fit between the two through the cross-sectional shapes of the sleeve 3 and the sliding groove 4, restricting the rotation of the sleeve 3 and the housing 1. Therefore, the cross-sectional shape of the sleeve 3 cannot be circular: the sleeve 3 is in the shape of a triangular prism or a quadrangular prism; or the sleeve 3 is in the shape of a special-shaped column; in this embodiment, the sleeve 3 is in the shape of a quadrangular prism, with a simple structure and easy to implement.

[0036] Furthermore, as Figure 1 , 3 , shown in Fig. 5, a pressing piece 11 is fixedly provided on the operating rod 2, and the pressing piece 11 is fixedly welded to the operating rod 2; the pressing piece 11 is located in the housing 1 and beside the sleeve 3. The pressing piece 11 is configured to unlock the air rod and control the lifting of the air rod when the operating rod 2 is rotated and the pressing piece 11 rotates upward; a return spring 12 is provided on the operating rod 2, and the two spring arms of the return spring 12 act on the pressing piece 11 and the housing 1 respectively. The return spring 12 is configured to give a downward elastic force to the pressing piece 11; the two torsion spring arms of the return spring 12 respectively abut against the pressing piece 11 and the housing 1, and give a downward elastic force from top to bottom to the pressing piece 11; therefore, the return spring 12 always gives a downward elastic force to the pressing piece 11, enabling the pressing piece 11 to lock the air rod when the operating rod 2 is not rotated.

[0037] Specifically, the spring arm of the return spring 12 acting on the housing 1 is the feedback end 13. The feedback end 13 abuts against the housing 1. There is a protrusion 14 on the housing 1. When the operating lever 2 is pulled, the feedback end 13 slides and passes over the protrusion 14 to give the user feedback on the pulling operation; the feedback end 13 of the return spring 12 always abuts against the housing 1. When the operating lever 2 is pulled, the return spring 12 will pass over the protrusion 14 to provide feedback on the pulling operation, enabling the user to determine whether the operating lever 2 is in place, that is, whether the control operation is completed; when the pulling operation is not fully completed, the return spring 12 can also rely on its elastic force to reach both sides of the protrusion 14 to prevent other misoperations during the pulling control process from damaging the internal structure of the chassis; in addition, the protrusion 14 also limits the operating lever 2 to prevent the operating lever 2 from moving left and right after the pulling ends and causing misoperations.

Claims

1. An easy-to-operate chassis assembly, characterized in that: The invention relates to a shell and an operating rod, wherein the operating rod is inserted into the shell; the operating rod comprises an operating end and a mounting end, wherein the mounting end is inserted into the shell and protrudes from the shell, and the operating end is located on the other side of the shell; the operating rod is a cylindrical rod, wherein a sleeve is provided on the outer sleeve of the mounting end, a sliding groove is provided on the shell, and the sleeve is inserted into the sliding groove, wherein the sleeve and the shell are configured to limit the sleeve from rotating relative to the shell; the operating rod is configured such that when the operating rod is rotated, the operating rod is rotated relative to the sleeve and the shell, and when the operating rod is pulled out, the operating rod and the sleeve slide synchronously on the shell.

2. The chassis assembly according to claim 1, characterized in that: A limited rotation groove is provided on the sleeve, and a socket is provided on the mounting end. A locking pin is inserted into the socket, and the locking pin enters the limited rotation groove. The locking pin is configured so that when the operating rod is pulled, the locking pin drives the sleeve to slide relative to the shell, and when the operating rod is rotated, the locking pin rotates in the limited rotation groove.

3. The chassis assembly according to claim 1, characterized in that: A pressing sheet is fixedly arranged on the operating rod, and the pressing sheet is located in the shell and beside the sleeve.

4. The chassis assembly according to claim 3, characterized in that: A return spring is arranged on the operating rod, and two spring arms of the return spring act on the pressing piece and the housing respectively. The return spring is configured to give a downward elastic force to the pressing piece.

5. The chassis assembly according to claim 4, characterized in that: The spring arm of the return spring acting on the housing is the feedback end, and the feedback end abuts against the housing. The housing is provided with a protrusion. When the protrusion is configured as a pull-out operating rod, the feedback end slides and passes over the protrusion to give the user feedback of the pull-out operation.

6. The chassis assembly according to claim 1, characterized in that: The sleeve is in the shape of a triangular prism or a quadrangular prism.

7. The chassis assembly according to claim 1, characterized in that: The sleeve is a special-shaped column.

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