CN212672326U

CN212672326U - Cam assembly for vehicle-mounted display

Info

Publication number: CN212672326U
Application number: CN202020997928.2U
Authority: CN
Inventors: 何木灵
Original assignee: Hangzhou Hangzheng Electronic Technology Co ltd
Current assignee: Hangzhou Hangzheng Electronic Technology Co ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2021-03-09
Anticipated expiration: 2030-06-03

Abstract

The utility model provides a cam subassembly for on-vehicle display, aims at solving among the prior art the operation stationarity of lateral shifting piece is relatively poor, leads to the display to rotate the in-process and takes place easily to rock to and cam balancer takes place the technical problem of card dead phenomenon easily in the course of the work. The utility model discloses a pivot, cam and lateral shifting piece have been cup jointed in the pivot, the one end of lateral shifting piece's one end butt elastic component, the other end and the regulating part looks butt of elastic component, be equipped with the contact jaw on the lateral shifting piece, the contact jaw includes contact roller and to the spacing installation otic placode of contact roller, the contact roller is laminated with the curve profile of cam mutually, one side that the lateral shifting piece was kept away from to the cam is equipped with the first installation piece of fixing in the pivot, one side that the cam was kept away from to the regulating part is equipped with the second installation piece of cup jointing in the pivot, be equipped with the guide bar of arranging along pivot length direction between first installation piece and the second installation piece, be equipped with on the lateral shifting piece with guide bar sliding.

Description

Cam assembly for vehicle-mounted display

Technical Field

The utility model relates to a display terminal technical field especially relates to a cam subassembly for on-vehicle display.

Background

In order to ensure that passengers at all positions have better viewing angles, a vehicle-mounted display in a passenger car is usually installed at the top of a carriage at a passageway, the vehicle-mounted display needs to be fixed at about the optimal viewing angle of 110 degrees after being opened, and the currently common vehicle-mounted display usually realizes the adjustment of the optimal viewing angle through the opening and closing of an installation support, for example, a rotating shaft device and a display support are disclosed in the Chinese patent with the publication number of CN206694399U, and comprise a rotating shaft, a fixed support, a locking piece, a fixed cam, a rotating cam and an elastic piece, wherein one end of the rotating shaft is provided with an end cap; the other end of the rotating shaft sequentially penetrates through the elastic piece, the rotating cam, the fixed cam and the fixed bracket and is connected with the locking piece; the rotating cam is meshed with the fixed cam, the fixed cam is fixedly connected with the fixed support, the rotating shaft drives the rotating cam to rotate when rotating, and the rotating cam drives the fixed cam and the fixed support to rotate simultaneously.

In order to solve the above problems, the applicant has announced in 2019 a cam balancer for a vehicle display, having publication No. CN210363629U, in which the display is mounted on a display support, and includes: the display bracket is rotatably sleeved on the rotating shaft; the transverse moving block is connected to the rotating shaft in a sleeved mode and moves transversely on the rotating shaft; the cam is fixedly sleeved on the rotating shaft and is attached to the transverse moving block; a contact end is arranged on the transverse moving block and is attached to the curve profile on the cam; the cam is matched with the contact end to convert the overturning motion of the display into the transverse motion of the transverse moving block on the rotating shaft; the elastic piece, fixed mounting has the regulating block on the pivot, and the elastic piece butt is between regulating block and lateral shifting piece.

The display in a viewing state in the patent can rotate at a small angle along the load direction after being impacted by the load, and when the head of a passenger is impacted on the display carelessly, the display is separated from the head of the passenger under the action of the impact load, so that the head of the passenger is prevented from being damaged due to hard impact; but the single-end of guide bar in the above-mentioned patent is fixed, and easy the emergence is rocked in the in-service use process, leads to the operation stationarity of lateral shifting piece relatively poor, and in addition, the contact jaw in this patent does not do vertically spacing, and the contact jaw can't laminate completely with the curve profile of cam, and the contact jaw and the curve profile of part contact easily take place wearing and tearing after long-time relative movement, lead to the radial indentation volume on the contact jaw global inconsistent, and then make the contained angle between lateral shifting piece and the pivot can't maintain 90, the cam balancer in the course takes place the card phenomenon easily.

Disclosure of Invention

The utility model discloses an it is relatively poor to overcome the operation stationarity of lateral shifting block among the prior art, lead to the display to rotate the in-process and take place to rock easily, and the cam balancer takes place the technical problem of the dead phenomenon of card easily in the course of the work, provide a cam assembly for on-vehicle display, the operation stationarity of lateral shifting block is higher among this cam assembly, the location process of display is swift high-efficient, in addition, lateral shifting block is perpendicular all the time with the pivot, the operation process of cam assembly is steady smooth.

In order to achieve the above purpose, the present invention adopts the following technical solution.

The utility model provides a cam subassembly for on-vehicle display, which comprises a rotating shaft, cam and lateral shifting piece have cup jointed in the pivot, the one end butt elastic component's of cam is kept away from to the lateral shifting piece one end, the other end of elastic component and cup joint the epaxial adjusting part looks butt of commentaries on classics, be equipped with the contact jaw on the lateral shifting piece, the contact jaw includes contact roller and to the spacing installation otic placode of contact roller, the contact roller laminates with the curve profile of cam mutually, one side that the lateral shifting piece was kept away from to the cam is equipped with the first installation piece of fixing in the pivot, one side that the cam was kept away from to the adjusting part is equipped with the second installation piece of cup jointing in the pivot, be equipped with the guide bar of arranging along pivot length direction between first installation piece and the second installation. In the utility model, two ends of the guide rod are respectively limited by the first mounting block and the second mounting block, compared with the single-end fixing mode of the guide rod in the original application, the two-end fixing mode can effectively improve the stability of the guide rod, the guide rod is not easy to swing in the use process, when the transverse moving block is pushed by the cam rotation, the guide rod assists the transverse moving block to move in a fixed track reciprocating manner, and the stability of the guide rod is higher, so the running stability of the transverse moving block in the cam component is effectively improved; in addition, the transverse moving block is provided with a contact end, the contact end comprises a contact roller and an installation lug plate for limiting the contact roller, the curve profile of the contact roller and the curve profile of the cam are always in a full contact state, the positions of the contact roller subjected to abrasion are uniform, and the radial retraction amount of the circumferential surface of the contact roller after abrasion is consistent, so that the transverse moving block and the rotating shaft are always kept vertical, the operation process of the cam component is stable and smooth, and the operation retardation phenomenon caused by the inclination of the transverse moving block can be avoided.

Preferably, the number of the contact ends is two, the contact ends are symmetrically arranged along the radial direction of the rotating shaft, the mounting lug plates comprise first lug plates and second lug plates, the first lug plates and the second lug plates are respectively positioned on two sides of the contact roller along the axial direction of the contact roller, the second lug plates are radially positioned on one sides, far away from the rotating shaft, of the contact roller along the rotating shaft, and annular bosses are arranged on the end faces, close to the contact roller, of the second lug plates. First otic placode and second otic placode are used for spacing to the contact roller, so the both ends of contact roller need respectively with first otic placode and the contact of second otic placode, receive the face friction that comes from first otic placode and second otic placode when the contact roller rotates this moment, the contact roller rotates that the in-process receives to rub and hinder great, has reduced the operation smoothness nature of contact roller when contact roller wearing and tearing with higher speed, for overcoming this technical problem, the utility model discloses add on the terminal surface that the second otic placode is close to the contact roller and has established annular boss, annular boss is less with the area of contact roller's contact, so can effectively reduce the friction that the contact roller received and hinder to promote the rotation smoothness nature of contact roller.

Preferably, a contact shaft rotationally connected with the contact roller is arranged in an installation groove formed by matching the first lug plate and the second lug plate, an installation ring for limiting the elastic piece is arranged on one side, away from the contact end, of the transverse moving block, and a first drag reduction sheet located between the transverse moving block and the elastic piece is arranged in the installation ring and is annular. When the elastic component is direct when the butt with the lateral shifting block, because the initial area of contact of elastic component and lateral shifting block is less, when the lateral shifting block promoted the elastic component and takes place to compress, the elastic component took place to rock easily, for avoiding this phenomenon, the utility model discloses keep away from one side of contact jaw at the lateral shifting block and added and established the spacing collar to the elastic component, the collar carries on spacingly to the tip that the elastic component is close to the lateral shifting block to effectively avoid rocking of elastic component.

Preferably, the adjusting part is a limiting nut, a thread section is arranged on the rotating shaft, the limiting nut is in threaded connection with the thread section, the limiting nut is in adjustable connection with the thread section, one end, far away from the first mounting block, of the elastic part is connected with a positioning disc, and the positioning disc is in butt joint with one end, far away from the second mounting block, of the adjusting part. The area of contact of elastic component and stop nut butt end is less, when direct impel stop nut through the elastic component and remove, the elastic component takes place to slide on stop nut easily, for avoiding this phenomenon, the utility model discloses the one end of keeping away from first installation piece at the elastic component has added and has established the positioning disk.

Preferably, the end face, close to the first mounting block, of the second mounting block is provided with a guide hole capable of being inserted with a guide rod, the guide rod is parallel to the rotating shaft, the second mounting block is provided with a first mounting hole penetrating through the second mounting block along the thickness direction of the second mounting block, and a ball bearing is arranged between the first mounting hole and the rotating shaft.

Preferably, a mounting plate is arranged at one end, close to the first mounting block, of the rotating shaft, a magnetic box is arranged at the other end of the rotating shaft, the magnetic box comprises an annular body and a limiting part located at one end, far away from the mounting plate, of the body, the limiting part and the body are matched to form a step surface for axially limiting the rotating shaft, and the inner diameter of the limiting part is smaller than that of the body. The magnetic packing box outputs response to the Hall switch outside, so that the rotation of the rotating shaft and the opening and closing of the external switch can be linked, the limiting part is matched with the body to form a step surface, and the step surface axially limits the rotating shaft.

Preferably, the end face of the body, which is far away from the limiting part, is provided with signal grooves arranged along the length direction of the rotating shaft, each signal groove comprises a first signal groove and a second signal groove which are adjacent to each other, a first magnetic part is arranged in each first signal groove, the number of the first magnetic parts is two, the first signal grooves are arranged at intervals along the length direction of the first signal grooves, and a second magnetic part is arranged in each second signal groove. The first magnetic part in the first signal groove is used for outputting an opening response to the Hall switch, the number of the first magnetic part is two edges and the length direction of the first signal groove is arranged at intervals, the included angle range between the two first magnetic parts is the range of the output opening response, the output range of the opening response can be adjusted by adjusting the span of the first signal groove or the interval of the two first magnetic parts, the second magnetic part is arranged in the second signal groove, and when the rotating shaft rotates to drive the second magnetic part to be close to the Hall switch, the second magnetic part outputs a closing response.

Preferably, the inner wall surface of the body is provided with press strips for assisting the magnetic packing box to be connected with the body, the length direction of the press strips is consistent with that of the rotating shaft, the number of the press strips is N, N is more than or equal to 8 and less than or equal to 16, N is an even number, and the N press strips are distributed along the circumferential direction of the body at equal included angles. The effect of layering is the installation intensity of the connection of reinforcing pivot and magnetic box.

Preferably, the central axis of the contact roller intersects and is perpendicular to the central axis of the cam, the central axis of the transverse sliding block is collinear with the central axis of the cam, and the transverse sliding block can move transversely along the rotating shaft under the driving of the cam.

Preferably, the elastic member is a spring.

To sum up, the utility model discloses following beneficial effect has: (1) the operation stability of the transverse moving block in the cam assembly is high, and the positioning process of the display is quick and efficient; (2) the transverse moving block is always vertical to the rotating shaft, and the operation process of the cam component is stable and smooth.

Drawings

Fig. 1 is a schematic view of the whole of the present invention.

Figure 2 is another schematic view of the present invention as a whole.

Fig. 3 is an exploded view of the present invention.

Fig. 4 is another exploded view of the present invention.

Fig. 5 is a schematic view of the lateral moving block of the present invention.

Fig. 6 is a schematic view of the magnetic packing box of the present invention.

Fig. 7 is another schematic view of the magnetic packing box of the present invention.

In the figure:

the device comprises a rotating shaft 1, a cam 2, a transverse moving block 3, an elastic piece 4, an adjusting piece 5, a contact end 6, a contact roller 7, a mounting lug plate 8, a first mounting block 9, a second mounting block 10, a guide rod 11, a sliding lug plate 12, a first lug plate 13, a second lug plate 14, an annular boss 15, a contact shaft 16, a mounting ring 17, a first drag reduction sheet 18, a threaded section 19, a positioning disc 20, a guide hole 21, a first mounting hole 22, a ball bearing 23, a mounting plate 24, a magnetic box 25, a body 26, a limiting piece 27, a stepped surface 28, a signal groove 29, a first signal groove 30, a second signal groove 31, a first magnetic piece 32, a second magnetic piece 33 and a pressing strip 34.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in fig. 1 to 7, a cam assembly for a vehicle-mounted display comprises a rotating shaft 1, a cam 2 and a transverse moving block 3 are sleeved on the rotating shaft, one end, far away from the cam, of the transverse moving block abuts against one end of an elastic part 4, the other end of the elastic part abuts against an adjusting part 5 sleeved on the rotating shaft, a contact end 6 is arranged on the transverse moving block, the contact end comprises a contact roller 7 and a mounting lug plate 8 limiting the contact roller, the contact roller is attached to the curve profile of the cam, a first mounting block 9 fixed on the rotating shaft is arranged on one side, far away from the transverse moving block, of the cam, a second mounting block 10 sleeved on the rotating shaft is arranged on one side, far away from the cam, of the adjusting part, a guide rod 11 arranged along the length direction of the rotating shaft is arranged between the first mounting block and the second mounting block, and a sliding lug; the number of the contact ends is two, the contact ends are symmetrically arranged along the radial direction of the rotating shaft, the mounting lug plates comprise a first lug plate 13 and a second lug plate 14, the first lug plate and the second lug plate are respectively positioned at two sides of the contact roller along the axial direction of the contact roller, the second lug plate is positioned at one side of the contact roller far away from the rotating shaft along the radial direction of the rotating shaft, and an annular boss 15 is arranged on the end surface of the second lug plate close to the contact roller; a contact shaft 16 which is rotationally connected with the contact roller is arranged in an installation groove formed by matching the first lug plate and the second lug plate, an installation ring 17 which limits the elastic part is arranged on one side of the transverse moving block away from the contact end, a first drag reduction sheet 18 which is positioned between the transverse moving block and the elastic part is arranged in the installation ring, and the first drag reduction sheet is annular; the adjusting piece is a limiting nut, a threaded section 19 is arranged on the rotating shaft, the limiting nut is in threaded connection with the threaded section, the limiting nut is in adjustable connection with the threaded section, one end, far away from the first mounting block, of the elastic piece is connected with a positioning disc 20, and the positioning disc is abutted to one end, far away from the second mounting block, of the adjusting piece; the end surface of the second mounting block close to the first mounting block is provided with a guide hole 21 which can be inserted with a guide rod, the guide rod is parallel to the rotating shaft, the second mounting block is provided with a first mounting hole 22 which is through along the thickness direction of the second mounting block, and a ball bearing 23 is arranged between the first mounting hole and the rotating shaft; a mounting plate 24 is arranged at one end of the rotating shaft close to the first mounting block, a magnetic packing box 25 is arranged at the other end of the rotating shaft, the magnetic packing box comprises an annular body 26 and a limiting part 27 positioned at one end of the body far away from the mounting plate, the limiting part and the body are matched to form a step surface 28 for axially limiting the rotating shaft, and the inner diameter of the limiting part is smaller than that of the body; the end face of the body, which is far away from the limiting part, is provided with a signal groove 29 which is arranged along the length direction of the rotating shaft, the signal groove comprises a first signal groove 30 and a second signal groove 31 which are adjacent, a first magnetic part 32 is arranged in the first signal groove, the number of the first magnetic parts is two, the first signal grooves are arranged at intervals along the length direction, and a second magnetic part 33 is arranged in the second signal groove; the inner wall surface of the body is provided with press strips 34 for assisting the magnetic packing box to be connected with the body, the length direction of the press strips is consistent with that of the rotating shaft, the number of the press strips is N, N is more than or equal to 8 and less than or equal to 16, N is an even number, and the N press strips are distributed along the circumferential direction of the body at equal included angles; the central axis of the contact roller is intersected and vertical to the central axis of the cam, the central axis of the transverse sliding block is collinear with the central axis of the cam, and the transverse sliding block can move transversely along the rotating shaft under the driving of the cam; the elastic piece is a spring.

As shown in fig. 1 and fig. 2, the mounting plate, the first mounting block, the cam, the transverse moving block, the elastic member, the adjusting member, the second mounting block and the magnetic box are arranged in sequence from left to right, a guide rod is arranged between the first mounting block and the second mounting block, the guide rod is positioned above the rotating shaft and is parallel to the rotating shaft, two ends of the guide rod are respectively inserted with the first mounting block and the second mounting block, a sinking groove is arranged on the right end surface of the first mounting block, a gasket for supporting the cam is arranged in the sinking groove, the left end of the cam is a plane end, the right end of the cam is a curved surface end, the cam is fixed with the rotating shaft through a pin, a sliding lug plate is arranged at the upper end of the transverse moving block, the sliding lug plate is sleeved on the peripheral surface of the guide rod, as shown in fig. 5, a contact end surface of the transverse moving block is provided with a contact end which is contacted with the curved profile of the, the contact roller is attached to the curved contour of the cam, the contact roller is in contact with the curved contour of the cam, the mounting lug plate comprises a first lug plate and a second lug plate, a contact shaft is arranged in a mounting groove formed by matching the first lug plate and the second lug plate, the contact roller is in rotary connection with the contact shaft, the second lug plate is positioned on the outer side, an annular boss is arranged on the end surface of the second lug plate close to the contact roller, a mounting ring is arranged on the right end surface of the transverse moving block, a first resistance reducing sheet is arranged in the mounting ring, the right end of the first resistance reducing sheet is connected with the left end of the elastic piece, the right end of the elastic piece is connected with a positioning disc, the right end surface of the positioning disc can be abutted against the left end surface of an adjusting piece, namely an adjusting bolt, the adjusting bolt is in threaded connection with a threaded section on the rotating shaft, a second mounting block is positioned on the right side of the adjusting bolt, as shown in figure, be equipped with hall switch on the circuit board, circuit board and hall switch and the utility model discloses a protection scope is irrelevant, and this place is just introduced for the explanation of being convenient for, is equipped with the first signal groove that is located left second signal groove and is located the right side on the left end face of body, is equipped with two first magnetic parts in the first signal groove, is equipped with the second magnetic part in the second signal groove, is equipped with a plurality of layering on the internal wall of body, and the figure of layering is eight and contained angle distribution such as this embodiment, as shown in fig. 7, body and locating part cooperation constitute the step face, and the internal diameter of locating part is less than the internal diameter of body.

Claims

1. The utility model provides a cam subassembly for on-vehicle display, a serial communication port, which comprises a rotating shaft, cam and lateral shifting piece have been cup jointed in the pivot, the one end butt elastic component's of cam is kept away from to the lateral shifting piece one end, the other end of elastic component and cup joint the epaxial adjusting part looks butt of commentaries on classics, be equipped with the contact jaw on the lateral shifting piece, the contact jaw includes contact roller and the spacing installation otic placode to contact roller, contact roller laminates with the curve profile of cam mutually, one side that the lateral shifting piece was kept away from to the cam is equipped with the first installation piece of fixing in the pivot, one side that the cam was kept away from to the adjusting part is equipped with the second installation piece of cup jointing in the pivot, be equipped with the guide bar of arranging along pivot length direction between first installation piece and the second installation.

2. The cam assembly for the vehicle-mounted display according to claim 1, wherein the number of the contact ends is two and the two contact ends are symmetrically arranged along a radial direction of the rotating shaft, the mounting lug plate comprises a first lug plate and a second lug plate, the first lug plate and the second lug plate are respectively located on two sides of the contact roller along an axial direction of the contact roller, the second lug plate is located on one side of the contact roller away from the rotating shaft along the radial direction of the rotating shaft, and an annular boss is arranged on an end surface of the second lug plate close to the contact roller.

3. The cam assembly for a vehicle-mounted display according to claim 2, wherein the first ear plate and the second ear plate are matched to form a mounting groove, a contact shaft rotatably connected with the contact roller is arranged in the mounting groove, a mounting ring for limiting the elastic member is arranged on one side, away from the contact end, of the transverse moving block, a first drag reduction plate is arranged in the mounting ring and located between the transverse moving block and the elastic member, and the first drag reduction plate is annular.

4. The cam assembly for the vehicle-mounted display according to claim 1, wherein the adjusting member is a limit nut, the rotating shaft is provided with a threaded section, the limit nut is in threaded connection with the threaded section, the limit nut is in adjustable connection with the threaded section, one end of the elastic member, which is far away from the first mounting block, is connected with a positioning disk, and the positioning disk abuts against one end of the adjusting member, which is far away from the second mounting block.

5. The cam assembly for a vehicle display according to claim 1, wherein a guide hole into which the guide rod is inserted is formed on an end surface of the second mounting block adjacent to the first mounting block, the guide rod is parallel to the rotary shaft, a first mounting hole penetrating through the second mounting block in a thickness direction thereof is formed on the second mounting block, and a ball bearing is provided between the first mounting hole and the rotary shaft.

6. The cam assembly for the vehicle-mounted display according to claim 1, wherein a mounting plate is provided at an end of the rotating shaft close to the first mounting block, a magnetic packing box is provided at the other end of the rotating shaft, the magnetic packing box comprises a ring-shaped body and a limiting member located at an end of the body far from the mounting plate, the limiting member and the body cooperate to form a step surface for axially limiting the rotating shaft, and an inner diameter of the limiting member is smaller than an inner diameter of the body.

7. The cam assembly for the vehicle-mounted display according to claim 6, wherein the end surface of the body away from the limiting member is provided with signal slots arranged along the length direction of the rotating shaft, the signal slots comprise a first signal slot and a second signal slot which are adjacent to each other, the first signal slot is provided with the first magnetic members, the number of the first magnetic members is two, the first signal slot is arranged at intervals along the length direction of the first signal slot, and the second signal slot is provided with the second magnetic member.

8. The cam component for the vehicle-mounted display according to claim 6, wherein the inner wall surface of the body is provided with press strips for assisting the magnetic packing box to be connected with the body, the length direction of the press strips is consistent with the length direction of the rotating shaft, the number of the press strips is N, N is more than or equal to 8 and less than or equal to 16, N is an even number, and the N press strips are distributed along the circumferential direction of the body at equal included angles.

9. The cam assembly for vehicle display unit of claim 1, 2, 4, 5 or 6, wherein the central axis of the contact roller intersects with and is perpendicular to the central axis of the cam, and the central axis of the lateral sliding block is collinear with the central axis of the cam, and the lateral sliding block is driven by the cam to move laterally along the rotation shaft.

10. The cam assembly for an in-vehicle display according to claim 1, 2, 4, 5 or 6, wherein the elastic member is a spring.