CN211369982U

CN211369982U - Partition type television background wall

Info

Publication number: CN211369982U
Application number: CN201922220648.0U
Authority: CN
Inventors: 宋健
Original assignee: Beijing Jianlei International Decoration Engineering Co ltd
Current assignee: Beijing Jianlei International Decoration Engineering Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-08-28
Anticipated expiration: 2029-12-11

Abstract

The utility model relates to a partition type TV wall, including the main part, main part length direction's both sides are towards two regions respectively, and the main part includes base and installation department, and the mounting hole that is used for installing TV frame is offered to the installation department, and the intercommunication groove of intercommunication base is offered to the tank bottom of mounting hole, and the intercommunication inslot is provided with the axis of rotation, the vertical setting of axis of rotation, the upper end and the TV frame attach of axis of rotation, the base is provided with and is used for controlling axis of rotation pivoted runner assembly, and the runner assembly is including setting up in the driven gear of axis of rotation, setting up in driven gear's driving gear and setting up in the connecting axle of driving gear, and the axis of connecting axle sets up with the axis of rotation. The television has the advantages that the same television can be used in two areas separated by the partition type background wall, so that the resource waste is reduced, the television use efficiency is improved, and convenience is brought to an owner.

Description

Partition type television background wall

Technical Field

The utility model belongs to the technical field of interior decoration and specifically relates to a partition type television background wall is related to.

Background

The television background wall is one of the key points of the decoration of the landscape wall of a living room, and occupies a very important position in the design of the well wall, and the television background wall is usually manufactured for making up for the spaciousness of a television area in a household space and plays a role in modifying the television area background wall.

In some small house types, the design of integrating the living room with the dining room or between the living room and the bedroom can use a partition type television background wall, and the partition type television background wall plays a role in dividing the region while placing a television.

A prior art partitioned television wall includes a main body with a television frame mounted on a side of the main body facing a living room. However, since the residential space required for the partition type television background wall is small, when the bedroom and the living room both have the requirement for using the television, the resource waste can be caused by respectively placing one television, and the inconvenience can be brought when the second television is not placed, so that the problem needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a partition type TV wall has and uses same TV through two regional uses of partition type wall divided to reduce the wasting of resources, improve TV availability factor and for the effect that the owner facilitated.

The utility model discloses a can realize through following technical scheme:

a partition type television background wall comprises a main body arranged between two areas, wherein two sides of the main body in the length direction respectively face the two areas, the main body comprises a base and a mounting part, the mounting part is provided with a mounting hole for mounting a television frame, the bottom of the mounting hole is provided with a communicating groove communicated with the base, a rotating shaft is arranged in the communicating groove, the rotating shaft is vertically arranged, the upper end of the rotating shaft is connected with the television frame, the base is provided with a rotating assembly for controlling the rotating shaft to rotate, the rotating assembly comprises a driven gear arranged on the rotating shaft, a driving gear arranged on the driven gear and a connecting shaft arranged on the driving gear, the axis of connecting axle sets up with the axis of rotation is perpendicular, driven gear is connected with the driving gear looks meshing, the base is provided with and is used for driving connecting axle pivoted rotation piece.

Through adopting above-mentioned technical scheme, the control rotates the piece, make and rotate a drive connecting axle and rotate, drive the driving gear when the connecting axle rotates and rotate, driving gear meshing drives driven gear and rotates, driven gear drives the axis of rotation and rotates, the axis of rotation rotates at the intercommunication inslot, the axis of rotation drives television frame and rotates when the pivoted, rotate in the mounting hole of installation department through television frame, can make two regions of main part length direction use same TV, in order to reduce the wasting of resources.

The utility model discloses further set up to: the rotating part comprises a speed reducing motor, an output shaft of the speed reducing motor is connected with the connecting shaft, and the output shaft of the speed reducing motor and the connecting shaft rotate coaxially.

Through adopting above-mentioned technical scheme, gear motor's setting can be realized rotating the connecting axle automatically, need not the manpower to rotate the connecting axle, has reduced the intensity of labour of manpower.

The utility model discloses further set up to: the utility model discloses a spacing pole, including intercommunication inslot, fixed disc, semicircular groove, rotation axis, gag lever post, slide bar, connecting groove, communicating groove, the intercommunication inslot is provided with fixed disc, the rotation hole has been seted up to fixed disc, the rotation hole of fixed disc is worn to locate fixed disc's rotation hole and is connected with fixed disc rotation in the upper end of axis of rotation, semicircular groove has been seted up to fixed disc's outer peripheral face, semicircular groove's the centre of a circle coincides with fixed disc's the centre of a circle, the axis of rotation is provided with the gag lever post, the gag lever post slides in semicircular groove of stepping down and is connected with the gag lever post.

Through adopting above-mentioned technical scheme, when the axis of rotation rotated in the rotation hole of fixed disc, the pole that slides slided in the semi-circular inslot that steps down of fixed disc synchronous, and the pole that slides simultaneously takes the gag lever post to slide in semi-circular recess, makes the rotation of axis of rotation have certain restriction, easily controls the axis of rotation.

The utility model discloses further set up to: be provided with locating component between intercommunication groove and the gag lever post, the holding tank has been seted up to the lateral wall in intercommunication groove, locating component installs in the holding tank, locating component is including setting up the locating lever in the holding tank and setting up in the holding tank and be located the first compression elastic component between locating lever and the holding tank bottom, the one end that the tank bottom of holding tank was kept away from to the locating lever sets up to the cambered surface, the locating hole has been seted up to the gag lever post, the locating lever is located in the locating hole.

Through adopting above-mentioned technical scheme, the gag lever post slides when locating the tank position department to the intercommunication groove, when the gag lever post just contacted the locating lever, the gag lever post extrudees the locating lever, make the locating lever move towards the tank bottom direction of holding tank and the locating lever extrudees the first compression elastic component in the holding tank simultaneously, when the locating hole of gag lever post and locating lever alignment, the locating lever is under the effect of first compression elastic component, the locating lever is popped out and is positioned in the locating hole from holding the inslot, can make the gag lever post fixed from this.

The utility model discloses further set up to: the positioning assemblies are arranged into two groups, and the two groups of positioning assemblies are respectively positioned on two sides of the fixed disc along the diameter direction.

Through adopting above-mentioned technical scheme, two sets of locating component's setting can make the gag lever post rotate to semicircular groove and all can be fixed along diameter direction's both sides.

The utility model discloses further set up to: the anti-disengaging assembly is arranged between the groove wall of the containing groove and the locating rod and used for preventing the locating rod from disengaging, and the anti-disengaging assembly comprises an inner convex ring arranged on the groove wall of the containing groove and an outer convex ring arranged on the locating rod.

Through adopting above-mentioned technical scheme, the evagination ring of locating lever stretches into in the holding tank and is located between the tank bottom and the interior bulge loop of holding tank, and evagination ring and interior bulge loop are mutually supported, make the locating lever slide in the holding tank all the time.

The utility model discloses further set up to: the installation department all slides towards one side in two regions and is provided with the door that slides that is used for hiding the mounting hole open-ended.

Through adopting above-mentioned technical scheme, the mounting hole can be covered in the setting of door that slides, can reduce the dust entering in the air on the one hand, and on the other hand can make the installation department seem more pleasing to the eye, surfacing.

The utility model discloses further set up to: the mounting hole relative both sides wall has been seted up respectively and has been slided the groove, the groove that slides sets up along the length direction of main part, the door that slides in the inslot that slides, be provided with fixed subassembly between the tank bottom in door and the groove that slides of sliding.

Through adopting above-mentioned technical scheme, the door that slides when sliding, through sliding in the inslot that slides at the mounting hole, make the more stable of sliding of door that slides, can be fixed in the inslot that slides after making the door that slides through fixed subassembly simultaneously.

The utility model discloses further set up to: the door that slides is close to the one end in groove of sliding and offers the groove of hiding corresponding with fixed subassembly, fixed subassembly is installed in hiding the groove, fixed subassembly is including wearing to locate the movable rod in hidden groove and setting up the second compression elastic component between hidden groove and movable rod, the movable rod is kept away from the one end of the tank bottom in hidden groove and is set up to the cambered surface, the tank bottom in groove of sliding offer with the spacing groove of movable rod looks adaptation, the movable rod is located the spacing inslot, it is provided with the anti-skidding subassembly that is used for preventing the movable rod roll-off to hide between groove and the movable rod.

Through adopting above-mentioned technical scheme, the door that slides when sliding, the door that slides extrudees the movable rod, make the movable rod remove towards the tank bottom direction of hiding the groove, the movable rod can compress the second compression elastic component of hiding the inslot when removing, when the spacing groove cunning of the door that slides to with the movable rod alignment, the movable rod is under the effect of second compression elastic component, the movable rod pops out and is positioned the spacing inslot from hiding the inslot, from this to fixing the door that slides.

To sum up, the utility model discloses a beneficial technological effect does:

the television comprises a first rotating part, a second rotating part, a connecting shaft, a television frame, a connecting shaft, a connecting gear, a driving gear, a driven gear, a connecting shaft, a television frame and a connecting part, wherein the first rotating part is controlled to drive the connecting shaft to rotate;

secondly, when the limiting rod slides to the position of the accommodating groove of the communicating groove, the limiting rod extrudes the positioning rod when the limiting rod just contacts the positioning rod, so that the positioning rod moves towards the direction of the bottom of the accommodating groove, meanwhile, the positioning rod extrudes a first compression elastic part in the accommodating groove, and when the positioning hole of the limiting rod is aligned with the positioning rod, the positioning rod pops out of the accommodating groove under the action of the first compression elastic part and is positioned in the positioning hole, so that the limiting rod can be fixed;

third, the door that slides when sliding, the door that slides extrudees the movable rod, makes the movable rod remove towards the tank bottom direction of hiding the groove, the movable rod can compress the second compression elastic component of hiding the inslot when removing, when the spacing groove cunning of the door that slides to with the movable rod alignment, the movable rod is under the effect of second compression elastic component, the movable rod pops out and is positioned the spacing inslot from hiding the inslot, fixes the door that slides from this.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is an overall cross-sectional view of an embodiment of the invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an enlarged view of portion B of FIG. 3;

fig. 5 is a schematic diagram of a partial explosion of an embodiment of the invention;

fig. 6 is a schematic partial cross-sectional view of an embodiment of the invention;

fig. 7 is an enlarged view of a portion C in fig. 6.

In the figure, 1, main body; 11. a base; 111. mounting grooves; 12. an installation part; 121. mounting holes; 1211. a sliding groove; 2. a communicating groove; 21. a housing; 22. a rotating shaft; 221. a bearing; 222. a slide bar; 223. a limiting rod; 2231. positioning holes; 23. accommodating grooves; 3. fixing the disc; 31. rotating the hole; 32. a semicircular groove; 33. a semicircular abdicating groove; 41. a driven gear; 42. a driving gear; 43. a connecting shaft; 5. a reduction motor; 61. positioning a rod; 62. a first compression spring; 7. an anti-drop component; 71. an outer convex ring; 72. an inner collar; 8. a sliding door; 81. hiding the groove; 91. a movable rod; 92. a second compression spring; 101. an anti-skid component; 1011. an outer ring; 1012. an inner ring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a partition type television background wall, including setting up main part 1 between two regions, main part 1 length direction's both sides are towards two regions respectively, and main part 1 includes base 11 and installation department 12, and the length direction of base 11 is unanimous with the length direction of main part 1. The mounting portion 12 is fixedly connected to the upper surface of the base 11, a mounting hole 121 is formed in the mounting portion 12 along the thickness direction of the mounting portion, and the mounting hole 121 penetrates through the mounting portion 12. The installation of the television frame is facilitated by the installation hole 121.

Referring to fig. 2 and 3, the upper surface of the base 11 is provided with a mounting groove 111 along the height direction thereof, and the bottom wall of the mounting hole 121 is provided with a communication groove 2 communicating with the mounting groove 111.

Referring to fig. 2 and 5, a casing 21 is fixedly connected in the communicating groove 2, openings are formed in two ends of the casing 21 in the thickness direction, the outer peripheral wall of the casing 21 is attached to the groove wall of the communicating groove 2, a fixed disc 3 is fixedly connected in the casing 21, the circle center of the fixed disc 3 coincides with the circle center of the casing 21, the outer peripheral wall of the fixed disc 3 is attached to the inner peripheral wall of the casing 21, and the upper end of the fixed disc 3 protrudes out of the casing 21.

Combine fig. 2, fig. 3, fig. 5, be provided with axis of rotation 22 in the intercommunication groove 2, the vertical setting of axis of rotation 22, the central point department of putting of fixed disc 3 has seted up rotation hole 31, rotation hole 31 runs through fixed disc 3, the rotation hole 31 of fixed disc 3 is worn to locate by the upper end of axis of rotation 22 and is rotated with fixed disc 3 and be connected, the upper end of axis of rotation 22 and the lower fixed surface of television frame are connected, the lower surface of television frame is laminated with the upper surface of fixed disc 3 mutually. The lower end of the rotating shaft 22 extends out of the communication groove 2 to the bottom of the mounting groove 111 of the base 11, the bottom of the mounting groove 111 is fixedly connected with a bearing 221 at a position corresponding to the rotating shaft 22, and the lower end of the rotating shaft 22 penetrates through the bearing 221 and is rotatably connected with the bearing 221.

Referring to fig. 3 and 5, the base 11 is provided with a rotating assembly for controlling the rotation of the rotating shaft 22, the rotating assembly is installed in the installation groove 111, the rotating assembly includes a driven gear 41, a driving gear 42 and a connecting shaft 43, the axis of the connecting shaft 43 is perpendicular to the axis of the rotating shaft 22, and the driving gear 42 is fixedly connected to the connecting shaft 43 and rotates coaxially with the connecting shaft 43. The driven gear 41 is fixedly connected to the rotating shaft 22 and rotates coaxially with the rotating shaft 22, and the driving gear 42 is engaged with the driven gear 41. A rotating part for driving the connecting shaft 43 to rotate is arranged in the mounting groove 111, the rotating part comprises a speed reducing motor 5, an output shaft of the speed reducing motor 5 is fixedly connected with the connecting shaft 43, and the output shaft of the speed reducing motor 5 and the connecting shaft 43 rotate coaxially.

The outer peripheral surface of the fixed disk 3 is provided with a semicircular groove 32, the circle center of the semicircular groove 32 is superposed with the circle center of the fixed disk 3, the top wall of the semicircular groove 32 is communicated with the upper surface of the fixed disk 3, and the bottom wall of the semicircular groove 32 is communicated with the lower surface of the fixed disk 3. The axis of rotation 22 is provided with gag lever post 223, gag lever post 223 and axis of rotation 22 parallel arrangement, and gag lever post 223 is located between the internal perisporium of semicircular groove 32 and shell 21, is formed with the arc track between the internal perisporium of semicircular groove 32 and shell 21, and gag lever post 223 slides in the arc track. The groove bottom of the semicircular groove 32 is provided with a semicircular abdicating groove 33 towards the center of the circle, the center of the semicircular abdicating groove 33 is overlapped with the center of the fixed disc 3, the semicircular abdicating groove 33 is communicated with the rotating hole 31, a sliding rod 222 is arranged between the rotating shaft 22 and the limiting rod 223, and the sliding rod 222 is perpendicular to the rotating shaft 22. The sliding rod 222 is positioned in the semicircular groove 32 and is connected with the semicircular groove 32 in a sliding manner.

Referring to fig. 3 and 4, two sets of positioning assemblies are arranged between the communicating groove 2 and the limiting rod 223, and the two sets of positioning assemblies are respectively located on two sides of the fixed disc 3 in the diameter direction. Holding tank 23 corresponding with locating component has been seted up to the lateral wall in intercommunication groove 2, and locating component installs in holding tank 23, and locating component includes locating lever 61 and sets up in holding tank 23 and be located the first compression elastic component between locating lever 61 and the holding tank 23, and locating lever 61 sets up with gag lever post 223 is perpendicular, and locating lever 61 wears to locate in holding tank 23, and the one end that the tank bottom of holding tank 23 was kept away from to locating lever 61 is the cambered surface. The first compression elastic member is a first compression spring 62, the compression direction of the first compression spring 62 is consistent with the axial direction of the positioning rod 61, the limiting rod 223 is provided with a positioning hole 2231 corresponding to the positioning rod 61, and when the limiting rod 223 rotates to correspond to the positioning rod 61, the positioning rod 61 is positioned in the positioning hole 2231.

Be provided with the anticreep subassembly 7 that prevents that locating lever 61 from deviating from between the cell wall of holding tank 23 and locating lever 61, anticreep subassembly 7 is including welding in the interior bulge loop 72 of the cell wall of holding tank 23 and welding in the evagination ring 71 of locating lever 61 periphery wall, and evagination ring 71 stretches into in the holding tank 23 and is located between the tank bottom of interior bulge loop 72 and holding tank 23, and evagination ring 71 and interior bulge loop 72 mutually support.

With reference to fig. 1, 6, and 7, the sliding doors 8 for covering the openings of the mounting holes 121 are slidably disposed on both sides of the mounting portion 12 facing the two regions, sliding grooves 1211 are respectively disposed on two opposite side walls of the mounting hole 121, the sliding grooves 1211 are disposed along the length direction of the main body 1, the sliding doors 8 slide in the sliding grooves 1211, and when the two sliding doors 8 on the same side of the mounting portion 12 slide to cover the mounting holes 121, a fixing component for stably abutting the two sliding doors 8 is disposed.

Referring to fig. 6 and 7, a hidden slot 81 corresponding to the fixed component is formed at one end of the sliding door 8 close to the sliding slot 1211, the fixed component is installed in the hidden slot 81, and the fixed component includes a movable rod 91 and a second compression elastic member disposed between the hidden slot 81 and the movable rod 91. The movable rod 91 is arranged in the hidden groove 81 in a penetrating manner, one end, away from the groove bottom of the hidden groove 81, of the movable rod 91 is arranged to be an arc surface, the second compression elastic piece is a second compression spring 92, the compression direction of the second compression spring 92 is consistent with the axis direction of the movable rod 91, the top wall of the sliding groove 1211 is provided with an insertion groove corresponding to the movable rod 91, and when the two sliding doors 8 are connected in a butt joint manner, the end, away from the hidden groove 81, of the movable rod 91 is inserted into the insertion groove.

Be provided with anti-skidding subassembly 101 that is used for preventing movable rod 91 roll-off between hiding groove 81 and movable rod 91, anti-skidding subassembly 101 is including welding in the inner ring 1012 of the cell wall of hiding groove 81 and welding in the outer loop 1011 of movable rod 91 periphery wall, and outer loop 1011 stretches into and hides in groove 81 and is located between the groove bottom of inner ring 1012 and hidden groove 81, and outer loop 1011 and inner ring 1012 mutually cooperate.

The implementation principle of the embodiment is as follows: when the television frame needs to be rotated, the reduction motor 5 is started, an output shaft of the reduction motor 5 rotates and drives the connecting shaft 43 to synchronously rotate, the connecting shaft 43 drives the driving gear 42 to rotate while rotating, the driving gear 42 is meshed with the driven gear 41 of the rotating shaft 22, the driving gear 42 is meshed with the driven gear 41 to drive the driven gear 41 to rotate, the driven gear 41 synchronously drives the rotating shaft 22 to rotate, the rotating shaft 22 drives the television frame to rotate while rotating, the rotating shaft 22 drives the sliding rod 222 to slide in the semicircular abdicating groove 33 while rotating, the sliding rod 222 drives the limiting rod 223 to slide in the arc-shaped track while sliding, and when the limiting rod 223 slides to the other end of the arc-shaped track, the positioning rod 61 is positioned in the positioning hole 2231 of the limiting rod 223 under the action of the first compression spring 62.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a wall formula TV wall, is including setting up main part (1) between two regions, and main part (1) length direction's both sides are respectively towards two regions, its characterized in that: the main body (1) comprises a base (11) and an installation part (12), the installation part (12) is provided with an installation hole (121) used for installing a television frame, the tank bottom of the installation hole (121) is provided with a communication groove (2) communicated with the base (11), a rotating shaft (22) is arranged in the communication groove (2), the rotating shaft (22) is vertically arranged, the upper end of the rotating shaft (22) is connected with the television frame, the base (11) is provided with a rotating assembly used for controlling the rotating shaft (22) to rotate, the rotating assembly comprises a driven gear (41) arranged on the rotating shaft (22), a driving gear (42) arranged on the driven gear (41) and a connecting shaft (43) arranged on the driving gear (42), the axis of the connecting shaft (43) is perpendicular to the axis of the rotating shaft (22), and the driven gear (41) is meshed with the driving gear (42), the base (11) is provided with a rotating part for driving the connecting shaft (43) to rotate.

2. A partitioned television wall as defined in claim 1, wherein: the rotating piece comprises a speed reducing motor (5), an output shaft of the speed reducing motor (5) is connected with the connecting shaft (43), and the output shaft of the speed reducing motor (5) rotates coaxially with the connecting shaft (43).

3. A partitioned television wall as defined in claim 2, wherein: a fixed disc (3) is arranged in the communicating groove (2), a rotating hole (31) is arranged on the fixed disc (3), the upper end of the rotating shaft (22) is arranged in a rotating hole (31) of the fixed disc (3) in a penetrating way and is rotationally connected with the fixed disc (3), the outer peripheral surface of the fixed disc (3) is provided with a semicircular groove (32), the circle center of the semicircular groove (32) is superposed with the circle center of the fixed disc (3), the rotating shaft (22) is provided with a limiting rod (223), the limiting rod (223) slides in the semicircular groove (32), the bottom of the semicircular groove (32) is provided with a semicircular abdicating groove (33) towards the direction of the circle center, the semicircular abdicating groove (33) is communicated with the rotating hole (31), the rotating shaft (22) is provided with a sliding rod (222), the sliding rod (222) slides in the semicircular abdicating groove (33) and is connected with the limiting rod (223).

4. A partitioned television wall as defined in claim 3 wherein: be provided with locating component between intercommunication groove (2) and gag lever post (223), holding tank (23) have been seted up to the lateral wall in intercommunication groove (2), locating component installs in holding tank (23), locating component is including setting up locating lever (61) in holding tank (23) and setting up in holding tank (23) and be located the first compression elastic component between locating lever (61) and holding tank (23) tank bottom, the one end that the tank bottom of holding tank (23) was kept away from in locating lever (61) sets up to the cambered surface, locating hole (2231) have been seted up in gag lever post (223), locating lever (61) are located in locating hole (2231).

5. A partitioned television wall as defined in claim 4 wherein: the positioning assemblies are arranged into two groups, and the two groups of positioning assemblies are respectively positioned on two sides of the fixed disc (3) along the diameter direction.

6. A partitioned television wall as defined in claim 5 wherein: an anti-falling component (7) for preventing the positioning rod (61) from falling off is arranged between the groove wall of the accommodating groove (23) and the positioning rod (61), and the anti-falling component (7) comprises an inner convex ring (72) arranged on the groove wall of the accommodating groove (23) and an outer convex ring (71) arranged on the positioning rod (61).

7. A partitioned television wall as defined in claim 1, wherein: the installation part (12) is provided with a sliding door (8) used for covering the opening of the installation hole (121) towards one side of the two areas in a sliding manner.

8. A partitioned television wall as defined in claim 7 wherein: two opposite side walls of the mounting hole (121) are respectively provided with a sliding groove (1211), the sliding groove (1211) is arranged along the length direction of the main body (1), the sliding door (8) slides in the sliding groove (1211), and a fixing component is arranged between the sliding door (8) and the bottom of the sliding groove (1211).

9. A partitioned television wall as defined in claim 8, wherein: the one end that sliding door (8) are close to groove (1211) of sliding is seted up and is hidden groove (81) corresponding with fixed subassembly, fixed subassembly is installed in hidden groove (81), fixed subassembly is including wearing to locate movable rod (91) of hidden groove (81) and setting up the second compression elastic component between hidden groove (81) and movable rod (91), the one end that the tank bottom of hidden groove (81) was kept away from in movable rod (91) sets up to the cambered surface, the spacing groove with movable rod (91) looks adaptation is seted up to the tank bottom of groove (1211) of sliding, movable rod (91) are located the spacing inslot, be provided with anti-skidding subassembly (101) that are used for preventing movable rod (91) roll-off between hidden groove (81) and movable rod (91).