Lifting rotating table and control mechanism thereof

Abstract

The utility model discloses a lifting rotary table and a control mechanism thereof, and the control mechanism comprises a box body which is fixedly installed below a table board; the sleeves are fixedly connected with the telescopic table legs; the fixed shaft disc is fixedly mounted in the sleeve; the lifting handle is provided with a lifting spline shaft and is rotationally supported at one end of the box body; the moving gear is installed on the lifting spline shaft in a matched mode through the spline hole, and the moving gear is provided with outer teeth; the cam is mounted on the moving gear in a matched manner through internal teeth; the cam is rotationally supported at one end of the fixed shaft disc; by rotating the lifting handle, the cam can rotate to trigger the lifting mechanism in the telescopic table leg; the rotating handle is rotationally supported at the other end of the box body, and one end of the rotating handle is connected with an iris mechanism; a shell of the iris mechanism is fixedly connected with the box body; the clutch shaft is fixedly connected to the other end of the fixed shaft disc; wherein the iris mechanism is arranged on the clutch shaft in a sleeving manner, and the iris mechanism can be connected with or separated from the clutch shaft by rotating the rotating handle.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automotive interior, especially relates to a lifting rotary table and control mechanism thereof. BACKGROUND

[0002] With the continuous improvement of living standards, people's demand for car performance, appearance and safety performance is increasing, and the demand for car interior and exterior environment is also increasing. In addition to meeting people's basic travel needs, cars gradually develop more functional needs.

[0003] Under normal circumstances, small table plates are often provided in large SUVs or MPVs or buses to meet the needs of passengers in different scenarios such as office, catering and storage. Due to the limitation of the passenger space in the car, the existing small table plate has single function and can only be opened and stowed, and cannot be lifted or adjusted in angle. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a lifting rotary table control mechanism, which triggers the lifting mechanism of the table plate and realizes the rotation of the table plate through two handles, has small occupied space and good stability.

[0005] The utility model also provides a lifting rotary table, which realizes the control of lifting and rotation by using the lifting rotary table control mechanism.

[0006] The utility model provides a technical scheme, which comprises:

[0007] A lifting rotary table control mechanism comprises:

[0008] A box body is fixedly installed below a table plate;

[0009] A sleeve is rotatably arranged in the box body, the sleeve is fixedly connected with a telescopic table leg, and a lifting mechanism is installed in the telescopic table leg;

[0010] A fixed shaft disc is arranged in the sleeve and fixedly connected with the sleeve;

[0011] A lifting handle is rotatably supported at one end of the box body, one end of the lifting handle is fixedly provided with a lifting flower shaft, and the lifting flower shaft extends into the sleeve;

[0012] A movement gear is installed on the lifting flower shaft in a matching mode through a spline hole, and the movement gear has external teeth;

[0013] A cam is provided with internal teeth matched with the external teeth and is installed on the movement gear in a matching mode through the internal teeth;

[0014] The cam is rotatably supported at one end of the fixed shaft disc and connected with the fixed shaft disc through a tension spring; the rotating lifting handle can make the cam rotate to trigger the lifting mechanism, so as to lengthen or shorten the telescopic table leg;

[0015] The rotating handle is rotatably supported at the other end of the box body, and one end of the rotating handle is connected with an iris mechanism; the outer shell of the iris mechanism is fixedly connected with the box body;

[0016] The clutch shaft is fixedly connected at the other end of the fixed shaft disc;

[0017] The iris mechanism is sleeved on the clutch shaft, and the rotating handle can make the iris mechanism engage with or separate from the clutch shaft;

[0018] When the iris mechanism separates from the clutch shaft, the table plate can rotate relative to the sleeve.

[0019] Preferably, the lifting flower shaft is connected with the box body through a first torsion spring.

[0020] Preferably, the lifting rotating table control mechanism further comprises:

[0021] The clutch rotating lever comprises a main body, a first pin shaft and a second pin shaft; the main body is disc-shaped, and the first pin shaft and the second pin shaft are fixedly connected at two ends of the main body and coaxially arranged with the main body;

[0022] The first pin shaft is rotatably arranged through the clutch shaft and fixedly connected with the iris mechanism; a plurality of cylindrical protrusions are circumferentially and spaced arranged on the outer circumference of the main body;

[0023] The sliding shaft comprises a cylinder and a hollow shaft coaxially connected;

[0024] The cylinder is provided with a plurality of wedge-shaped sliding grooves, and the cylindrical protrusions are correspondingly arranged in the wedge-shaped sliding grooves; the second pin shaft is rotatably supported in the hollow shaft; the hollow shaft passes through the fixed shaft disc and can axially move in the fixed shaft disc; one end of the hollow shaft abuts against the end face of the movement gear;

[0025] During the process of separating the iris mechanism from the clutch shaft by rotating the rotating handle, the clutch rotating lever rotates to push the sliding shaft to axially move, so that the movement gear separates from the cam.

[0026] Preferably, the lifting flower shaft comprises:

[0027] The limiting disc is disc-shaped; a plurality of limiting blocks are circumferentially and spaced arranged on the outer circumference of the limiting disc;

[0028] A connecting rod is coaxially fixedly connected to one end of the limiting disc, and the connecting rod is fixedly connected with the lifting handle;

[0029] A spline shaft is coaxially fixedly connected to the other end of the limiting disc.

[0030] Preferably, a plurality of circular-arc-shaped limiting grooves are formed in the circumferential direction of the limiting disc on the box body, and the limiting blocks are arranged one by one in the limiting grooves.

[0031] Preferably, a cylindrical spring is sleeved on the spline shaft, and two ends of the cylindrical spring are respectively abutted against the limiting disc and the moving gear.

[0032] Preferably, the iris mechanism comprises:

[0033] An iris sleeve is internally provided with a plurality of first sliding grooves.

[0034] A plurality of clamping tongues are arranged one by one in the first sliding grooves and can move along the first sliding grooves.

[0035] An iris support is rotatably arranged in the iris sleeve.

[0036] Preferably, a plurality of second sliding grooves are formed in the iris support, and one end of each of the plurality of clamping tongues is slidably connected in the second sliding groove, and the iris support is rotated by rotating the rotating handle, so as to cause the plurality of clamping tongues to gather inward and match and clasp the clutch shaft.

[0037] Preferably, the iris support and the iris sleeve are connected through a second torsional spring.

[0038] Preferably, the rotating handle and the iris support are connected through a D-shaped flat key.

[0039] The utility model provides a lifting rotary table, which comprises the lifting rotary table control mechanism.

[0040] The utility model has the advantages of:

[0041] The lifting rotary table control mechanism has the advantages of small occupied space and good stability.

[0042] The utility model also provides a lifting rotary table, which realizes lifting and rotating control through the lifting rotary table control mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 FIG. 1 is a schematic diagram of the overall structure of the lifting rotary table.

[0044] Figure 2 The explosion view of the lifting rotary table control mechanism is described in the utility model.

[0045] Figure 3 The internal mechanism schematic view of the sleeve is described in the utility model.

[0046] Figure 4 The structure schematic view of the box body (without mounting end cover) is described in the utility model.

[0047] Figure 5 The structure schematic view of the spline shaft is described in the utility model.

[0048] Figure 6 The structure schematic view of the fixed shaft disc is described in the utility model.

[0049] Figure 7 The structure schematic view of the iris mechanism is described in the utility model.

[0050] Figure 8 The structure schematic view of the clutch shaft is described in the utility model.

[0051] Figure 9 The structure schematic view of the clutch rotating rod and the sliding shaft is described in the utility model. DETAILED DESCRIPTION

[0052] The utility model will be further explained in detail in combination with the drawings, so that the person skilled in the art can implement according to the description.

[0053] As Figures 1-9 shown, the utility model provides a kind of lifting rotary table control mechanism, mainly include: box body 110, sleeve 120, fixed shaft disc 130, lifting handle 140, lifting spline shaft 150, movement gear 160, cam 170, rotary handle 210, iris mechanism 220 and clutch shaft 230.

[0054] Box body 110 is fixedly installed below table board 100.Sleeve 120 is rotatably arranged in box body 110, and sleeve 120 is fixedly connected with telescopic table leg 101, and telescopic table leg 101 is multi-stage telescopic cylinder structure, and telescopic table leg 101 is equipped with lifting mechanism (not shown in drawing) in it.The lifting mechanism can be used gas support or other lifting mechanism.

[0055] Fixed shaft disc 130 is arranged in sleeve 120, and is fixedly connected with sleeve 130 by key feature 130a arranged outside fixed shaft disc 130.Lifting handle 140 is rotatably supported at one end (left end) of box body 110, and one end of lifting handle 140 is fixedly connected with lifting spline shaft 150, and lifting spline shaft 150 extends into sleeve 120.

[0056] The motion gear 160 is fitted on the lifting spindle 150 through a center opening spline hole, and the motion gear 160 has external teeth. The cam 170 is provided with internal teeth matching the external teeth, and is fitted on the motion gear 160 through the internal teeth.

[0057] The cam 170 is rotatably supported at one end of the fixed shaft disc 130. The cam 170 and the fixed shaft disc 130 are both provided with positioning columns, and the positioning columns on the cam 170 and the fixed shaft disc 130 are connected through the tension spring 131. The lifting handle 140 can be rotated to rotate the cam 170 to trigger the lifting mechanism, so as to lengthen or shorten the telescopic table leg 101.

[0058] In the embodiment, the box body 110 includes a base 111, a first supporting arm 112 and a second supporting arm 113. The sleeve 120 is arranged between the first supporting arm 112 and the second supporting arm 113, and the outer sides of the first supporting arm 112 and the second supporting arm 113 are respectively closed through the first end cover 112a and the second end cover 113a. The sleeve 120 is provided with an opening at the connection position with the telescopic table leg 101, so that the inner cavity of the sleeve 120 is communicated with the inner cavity of the telescopic table leg 101, thereby realizing the contact between the cam 170 and the lifting mechanism in the telescopic table leg 101, and triggering the lifting mechanism.

[0059] The rotating handle 210 is rotatably supported at the other end of the box body 110, and one end of the rotating handle 210 is connected with the iris mechanism 220. The outer shell of the iris mechanism 220 is fixedly connected with the box body 110.

[0060] The clutch shaft 230 is fixedly connected at the other end (right end) of the fixed shaft disc 130. The iris mechanism 220 is sleeved on the clutch shaft 230, and the iris mechanism 220 can be engaged with or separated from the clutch shaft 230 by rotating the rotating handle 210. When the iris mechanism 220 is separated from the clutch shaft 230, the table plate 110 can be rotated relative to the sleeve 120, i.e. relative to the table leg 101, thereby realizing the adjustment of the angle of the table plate 100.

[0061] In the embodiment, the rotation of the table plate 100 is realized manually. In other embodiments, an automatic turnover mechanism can be added to realize the automatic turnover of the table plate.

[0062] As a preferred, the lifting spindle 150 is connected with the first supporting arm 112 of the box body 110 through the first torsion spring 114. The automatic reset of the lifting spindle 150, the motion gear 160 and the cam 170 after the lifting handle 140 is loosened is realized through the first torsion spring 114 and the tension spring 131.

[0063] As a further preferred, the lifting flower shaft 150 comprises: a limiting disc 151, a connecting rod 152 and a spline shaft 153. The limiting disc 151 is disc-shaped, and a plurality of limiting blocks 151a are arranged on the outer circumference of the limiting disc 151 at intervals in the circumferential direction. The connecting rod 152 is fixedly connected coaxially at one end of the limiting disc 151, and the connecting rod 152 is fixedly connected with the lifting handle 140 through a D-shaped flat key. The spline shaft 153 is fixedly connected coaxially at the other end of the limiting disc 151. Among them, the movement gear 160 is fitted and installed on the spline shaft 153 through the spline hole opened in the center. Among them, the first supporting arm 112 of the box body 110 is provided with a plurality of arc-shaped limiting grooves 112a around the circumferential direction of the limiting disc 151; the limiting blocks 151a are arranged one by one in the limiting grooves 112a. By arranging the limiting grooves 112a, the rotation range of the cam 170 can be limited, and the stability of the mechanism can be ensured.

[0064] In the embodiment, the iris mechanism 220 mainly comprises: an iris sleeve 221, a plurality of clamping tongues 222 and an iris support 223.

[0065] The iris sleeve 221 is a shell of the iris mechanism 220, which is a cylindrical structure with one end open; the outer wall of the iris sleeve 221 is provided with a key feature 221b, which is fixedly connected with the second supporting arm 113 of the box body 110 through key connection. A plurality of first sliding grooves 221a are arranged on the inner side of the end plate of the iris sleeve 221, and a through hole is arranged at the center of the end plate of the iris sleeve 221. The first sliding groove 221a is a groove, and a plurality of first sliding grooves 221a are arranged radially around the through hole at the center of the end plate. A plurality of clamping tongues 222 are arranged one by one in the first sliding groove 221a and can move along the first sliding groove 221a. One end of the iris support 223 is a circular ring disc, which is rotatably arranged in the iris sleeve 221, and a clamping spring 224 is installed in the iris sleeve 221 to limit the axial position of the iris support 221. The other end of the iris support 223 is a pin shaft, and the pin shaft of the iris support 223 is fixedly connected with the rotating handle 210 through a D-shaped flat key. A plurality of second sliding grooves 223a are arranged on the circular ring disc of the iris support 223, and the second sliding grooves are arranged one by one with the clamping tongues 222; and the second sliding groove 223 is a through groove, which is uniformly and interval arranged along the axial direction of the circular ring disc. Among them, the second sliding groove 223a is arranged obliquely with respect to the radial direction of the corresponding circular ring disc. One end of the clamping tongue 222 is provided with a columnar structure 222a, and is slidably connected in the second sliding groove 223a through the columnar structure 222a. By rotating the rotating handle 210, the iris support 223 is rotated, which causes the plurality of clamping tongues 222 to gather inward (toward the center of the iris sleeve 221), and matches with the clamping shaft 230.

[0066] The iris support 223 is connected with the iris sleeve 221 through the second torsion spring 225, and when the rotating handle 210 is loosened, the iris support 223 is reset under the action of the second torsion spring 225.

[0067] As a preferred, the clutch shaft 230 is provided with external teeth, and the plurality of clamping tongues 222 are provided with internal teeth towards one end of the clutch shaft 230, and the clutch shaft 230 and the plurality of clamping tongues 222 are clamped through the tooth-shaped cooperation.

[0068] In the embodiment, the clutch shaft 230 is composed of a coaxially connected annular disc 231 and a hollow gear shaft 232, the hollow gear shaft 232 passes through the center through hole of the iris bushing 221, and the hollow gear shaft 232 is provided with external teeth matched with the internal teeth of the clamping tongue 222. The annular disc 231 of the clutch shaft 230 is provided with a plurality of connecting columns 231a on the back side of the hollow gear shaft 232; wherein the right end of the fixed shaft disc 130 is provided with a plurality of columnar grooves 130b, and the connecting columns 231a are one-to-one correspondingly arranged in the columnar grooves 130b of the fixed shaft disc 130, so as to realize the fixation of the fixed shaft disc 130 and the clutch shaft. Wherein, the connecting columns 231a are arranged close to the edge of the annular disc 231, and since the length of the connecting columns 231a is greater than the depth of the columnar grooves, a gap is generated between the fixed shaft disc 130 and the annular disc 231.

[0069] The lifting and rotating table control mechanism further comprises a lifting and rotating clutch mechanism. The lifting and rotating clutch mechanism comprises a clutch rotating rod 310 and a sliding shaft 320.

[0070] The clutch rotating rod 310 comprises a main body part 311, a first pin shaft 312 and a second pin shaft 313. The main body part 311 is disc-shaped, and the first pin shaft 312 and the second pin shaft 313 are fixedly connected at both ends of the main body part 311 and coaxially arranged with the main body part 311. Wherein, the first pin shaft 312 rotatably passes through the clutch shaft 230 and extends to the pin shaft of the iris support 223, and is fixedly connected with the pin shaft of the iris support 223 through a D-shaped key. A plurality of cylindrical protrusions 311a are circumferentially and spaced apart on the outer circumference of the main body part 311.

[0071] The sliding shaft 320 comprises a coaxial connection of a cylinder 321 and a hollow shaft 322 with one end closed, and a central through hole is formed in the cylinder 321 and communicates with the hollow shaft 322. A plurality of wedge-shaped sliding grooves 321a are formed in the cylinder 321, and the cylindrical protrusions 311a are arranged in the wedge-shaped sliding grooves 321a one by one, and the second pin shaft 313 is rotationally supported in the hollow shaft 322. The cylinder 321 is located at the gap between the fixed shaft disc 130 and the annular disc 231; the hollow shaft 322 passes through the inner hole of the fixed shaft disc 130 and can axially move in the fixed shaft disc 130, and the closed end of the hollow shaft 322 abuts against the end face of the movement gear 160. A plurality of grooves are axially formed in the inner hole of the fixed shaft disc 130, and a plurality of convex edges are formed on the outer surface of the hollow shaft 322 and are matched with the grooves of the fixed shaft disc 130 to prevent the hollow shaft 322 from rotating relative to the fixed shaft disc 130. When the iris mechanism 220 is separated from the clutch shaft 230 by rotating the rotary handle 210, the clutch rotating rod 310 is rotated to push the sliding shaft 320 to axially move, so that the movement gear 160 is separated from the cam 170.

[0072] By arranging the lifting and rotating clutch mechanism, when the table plate 110 rotates, the movement gear 160 and the lifting handle 140 can rotate synchronously with the table plate 110, so that the interference between the movement gear 160 and the rotating table plate 100 due to the fixing of the lifting handle 140 by the fixed shaft disc 130 is prevented.

[0073] The cylindrical spring 180 is further sleeved on the spline shaft 153, and the two ends of the cylindrical spring 180 abut against the limiting disc 151 and the movement gear 160 respectively. By arranging the cylindrical spring 180, the cylindrical spring 180 can be automatically reset when the rotary handle 210 is loosened.

[0074] Meanwhile, the utility model discloses a lifting table controlled by the lifting and rotating table control mechanism.

[0075] In an embodiment, the lifting table is arranged on the rear row seat of a car, the lifting handle is used to trigger the lifting mechanism to adjust the table plate to different heights, the rotary handle is used to unlock the turnover mechanism to adjust the angle of the table plate, and the functional requirements in different states are realized.

[0076] Although the embodiments of the utility model have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, and can be applied to various fields suitable for the utility model. For those skilled in the art, other modifications can be easily realized, and therefore the utility model is not limited to specific details and the drawings shown and described herein, without departing from the general concept defined by the claims and the equivalent range.

Claims

1. A lifting and rotating table control mechanism, characterized in that, The utility model relates to a telescopic table, including: a box body fixedly installed under a table board; a sleeve rotatably arranged in the box body, the sleeve being fixedly connected with a telescopic table leg, and a lifting mechanism being installed in the telescopic table leg; a fixed shaft disc arranged in the sleeve and fixedly connected with the sleeve; a lifting handle rotatably supported at one end of the box body, one end of the lifting handle being fixedly provided with a lifting flower shaft, and the lifting flower shaft extending into the sleeve; a movement gear fitted on the lifting flower shaft through a spline hole, the movement gear having external teeth; a cam provided with internal teeth matched with the external teeth and fitted on the movement gear through the internal teeth; wherein the cam is rotatably supported at one end of the fixed shaft disc and connected with the fixed shaft disc through a tension spring; the cam is rotated to trigger the lifting mechanism by rotating the lifting handle, so that the telescopic table leg is lengthened or shortened; a rotating handle rotatably supported at the other end of the box body, one end of the rotating handle being connected with an iris mechanism; an outer shell of the iris mechanism being fixedly connected with the box body; a clutch shaft fixedly connected at the other end of the fixed shaft disc; wherein the iris mechanism is sleeved on the clutch shaft, and the iris mechanism is engaged with or separated from the clutch shaft by rotating the rotating handle; when the iris mechanism is separated from the clutch shaft, the table board can be rotated relative to the sleeve.

2. The lift-and-turn table control mechanism of claim 1, wherein, The lifting flower shaft is connected with the box body through a first torsional spring.

3. The lift-and-turn table control mechanism of claim 2, wherein, Further comprising: a clutch rotating lever including a main body, a first pin shaft and a second pin shaft; the main body being disc-shaped, the first pin shaft and the second pin shaft being fixedly connected at two ends of the main body and coaxially arranged with the main body; wherein the first pin shaft rotatably penetrates the clutch shaft and is fixedly connected with the iris mechanism; a plurality of cylindrical protrusions are circumferentially and spacedly arranged on the outer circumference of the main body; a sliding shaft including a cylinder coaxially connected with a hollow shaft; wherein a plurality of wedge-shaped sliding grooves are formed on the cylinder, the cylindrical protrusions are correspondingly arranged in the wedge-shaped sliding grooves, and the second pin shaft is rotatably supported in the hollow shaft; the hollow shaft penetrates the fixed shaft disc and can be axially moved in the fixed shaft disc, and one end of the hollow shaft abuts against an end face of the movement gear; during the process of separating the iris mechanism from the clutch shaft by rotating the rotating handle, the clutch rotating lever is rotated to axially move the sliding shaft, so that the movement gear is separated from the cam.

4. The lift-and-turn table control mechanism of claim 3, wherein, The lifting flower shaft includes: a limiting disc being disc-shaped; a plurality of limiting blocks are circumferentially and spacedly arranged on the outer circumference of the limiting disc; a connecting rod coaxially and fixedly connected at one end of the limiting disc, the connecting rod being fixedly connected with the lifting handle; a spline shaft coaxially and fixedly connected at the other end of the limiting disc; wherein a plurality of circular-arc limiting grooves are formed on the box body around the circumference of the limiting disc; the limiting blocks are correspondingly arranged in the limiting grooves.

5. The lift-and-turn table control mechanism of claim 4, wherein, a cylindrical spring is sleeved on the spline shaft, and two ends of the cylindrical spring abut against the limiting disc and the movement gear, respectively.

6. The lift-and-turn table control mechanism of claim 1 or 5, wherein, The iris mechanism includes: An iris sleeve is internally provided with a plurality of first sliding grooves; A plurality of clamping tongues are correspondingly arranged in the first sliding grooves and can move along the first sliding grooves; An iris support is rotatably arranged in the iris sleeve; Wherein, a plurality of second sliding grooves are arranged on the iris support; one end of the plurality of clamping tongues is slidably connected in the second sliding grooves, and the iris support is rotated by rotating the rotating handle, so as to make the plurality of clamping tongues gather inward and match with the clamping shaft.

7. The lift-and-turn table control mechanism of claim 6, wherein, The iris support and the iris sleeve are connected through a second torsion spring.

8. The lift-and-turn table control mechanism of claim 7, wherein, The rotating handle and the iris support are connected through a D-shaped flat key.

9. A lift and turn table, characterized in that The lifting and rotating table comprises the lifting and rotating table control mechanism according to any one of claims 1-8.

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