CN217471455U - Keyboard holds in palm structure, operation platform and shallow - Google Patents

Abstract

The application provides a keyboard support structure, which comprises a bottom plate, a keyboard support, a drag chain and a cable; the keyboard support is arranged on the bottom plate in a sliding manner; one end of the drag chain is connected with the bottom plate, and the other end of the drag chain is connected with the keyboard support; the cable is arranged in the drag chain in a penetrating way; the keyboard tray can move relative to the bottom plate to drive the drag chain to move. When pulling out or impel the keyboard and hold in the palm, the keyboard holds in the palm can drive the relative bottom plate of tow chain and remove in this application, and the cable conductor is accomodate in the tow chain all the time, and the tow chain drives the cable conductor and removes, because the tow chain has certain toughness, has the guide effect to the cable for the cable conductor can not intertwine.

Description

Keyboard holds in palm structure, operation platform and shallow

Technical Field

The utility model relates to a high-end equipment makes technical field, in particular to keyboard holds in palm structure, operation platform and shallow.

Background

Currently, medical carts on the market usually include electronic devices such as a display, a keyboard, etc. Among them, the keyboard is usually accomodate in the operation panel of medical shallow through the keyboard tray, and when pushing and pulling the keyboard tray, the cable conductor in the operation panel is easy intertwine, causes the cable conductor to damage.

SUMMERY OF THE UTILITY MODEL

The application mainly aims to provide a keyboard support structure, an operating platform and a trolley, and aims to solve the problem that cables are damaged due to the fact that cables inside an operating platform are wound mutually easily in the prior art.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

a keyboard tray structure, comprising:

a base plate;

the keyboard tray is arranged on the bottom plate in a sliding mode;

one end of the drag chain is connected with the bottom plate, and the other end of the drag chain is connected with the keyboard support;

the cable is arranged through the drag chain; the keyboard tray can move relative to the bottom plate to drive the drag chain to move.

In some embodiments, the bottom plate comprises a plate body and a containing frame which are connected, the keyboard tray is arranged on the plate body in a sliding mode, one end, far away from the keyboard tray, of the drag chain is connected to the containing frame, and the keyboard tray can drive the drag chain to move relative to the containing frame.

In some embodiments, the drag chain comprises drag chain links which are sequentially connected in a rotating manner, each drag chain link comprises two side plates and a connecting part, the two side plates are arranged oppositely and respectively arranged at two ends of the connecting part to form a containing cavity, the cable penetrates through the containing cavity, and the outer peripheral wall of one side plate is provided with a limiting clamping groove;

the connecting part of the drag chain link is accommodated in the limit clamping groove of the adjacent drag chain link, and when the drag chain link rotates to a preset position around the adjacent drag chain link, the connecting part abuts against the groove wall of the limit clamping groove so as to limit the rotating angle of the drag chain link.

In some embodiments, the keyboard tray further comprises a first limiting member, and the first limiting member is arranged at one end, far away from the keyboard tray, of the accommodating frame so as to limit the rotation angle of the drag chain link.

In some embodiments, the keyboard support further includes a third limiting member, the third limiting member is convexly disposed on the keyboard support, and when the tow chain is abutted against the third limiting member, the third limiting member limits the rotation angle of the tow chain, so that the tow chain moves along the sliding direction of the keyboard support.

In some embodiments, a receiving cavity is formed in one side of the keyboard holder facing the bottom plate, and the interface of the cable is received in the receiving cavity.

In some embodiments, the keyboard tray includes a tray and a connecting member, the tray is slidably disposed on the bottom plate and defines a receiving cavity, the connecting member covers a notch of the receiving cavity and encloses the receiving cavity, and the tow chain is connected to the connecting member.

In some embodiments, the connecting member has a first notch, the tray has a second notch, the first notch and the second notch enclose the first wire passing hole, the first wire passing hole is communicated with the accommodating cavity, and the cable passes through the first wire passing hole.

The application also provides an operating platform, including panel, main control board and aforementioned keyboard support structure, the panel lid is located the bottom plate, the main control board set up in the bottom plate, cable conductor connect in the main control board just wears to locate the tow chain, so that the interface of cable conductor set up in the keyboard holds in the palm.

The application also provides a cart, including aforementioned operation platform.

Has the beneficial effects that:

when pulling out or impel the keyboard and hold in the palm, the keyboard holds in the palm and drives the relative bottom plate of tow chain and remove, and the cable conductor is accomodate in the tow chain all the time, and the tow chain drives the cable conductor and removes, because the tow chain has certain toughness, has the guide effect to the cable for the cable conductor can not intertwine.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a cart in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a keyboard tray structure according to an embodiment of the present application;

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

FIG. 4 is an exploded view of the keyboard holder structure in an embodiment of the present application;

FIG. 5 is a schematic structural diagram of an operating platform according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a keyboard tray according to an embodiment of the present application;

FIG. 7 is an enlarged view of the structure at B in FIG. 6;

FIG. 8 is a schematic view of another structure of the keyboard tray in the embodiment of the present application;

FIG. 9 is a schematic structural diagram of a housing rack in an embodiment of the present application;

FIG. 10 is a schematic structural view of a connector according to an embodiment of the present application;

FIG. 11 is a schematic structural diagram of a drag chain in an embodiment of the present application;

FIG. 12 is a schematic illustration of the structure of a drag link in an embodiment of the present application;

FIG. 13 is a schematic illustration of the construction of a first drag link and a second drag link in an embodiment of the present application;

FIG. 14 is another schematic illustration of the configuration of the first and second drag links in an embodiment of the present application;

FIG. 15 is a schematic view of the structure of the variation in the lengths of the first and second slot walls in the embodiment of the present application;

FIG. 16 is a schematic view of another embodiment of the present disclosure showing the length variation of the first and second slot walls.

Icon: 1000-pushing;

100-an operating platform;

10-keyboard tray structure; 20-a panel; 30-a slide rail;

1-keyboard tray;

11-a tray; 111-a housing chamber; 112-a retaining projection; 113-a first receiving groove; 114-a limiting groove; 115-a second receiving groove; 116-a second gap; 12-a connector; 121-a first notch; 122-a first wire passing hole;

2-a bottom plate; 21-a cavity; 22-a plate body; 221-positioning columns; 23-a containing rack; 231-a support portion; 232-a locus of containment; 233-a connecting part; 234-a mount; 235-a second wire through hole; 236-positioning holes;

3-a drag chain; 31-drag chain link; 311-a first drag link; 312-a second tow link; 313-side plate; 3131-a socket joint; 3132-a plug-in portion; 3133-a column; 3134-connecting holes; 314-a connection portion; 315-a receiving cavity; 316-limit card slot; 3161-a first cell wall; 3162-a second groove wall; 317-a first joint; 318-a second linker;

4-a cable wire; 41-interface;

5-a limiting block; 51-a limit protrusion;

6-a first stop; 61-an extension; 62-bending part;

7-a second limit; 71-a limiting surface;

8-a third stop; 81-limit teeth;

9-a keyboard; 91-socket.

The implementation of the objectives, functional features, and advantages of the present application will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

It should be noted that all directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are only used to explain the relative position relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.

Furthermore, the descriptions in this application that refer to "first," "second," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, "and/or" in the whole text includes three schemes, taking a and/or B as an example, including a technical scheme, and a technical scheme that a and B meet simultaneously; in addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

Referring to fig. 1-2 and 4-5, the present application provides a cart 1000, which includes an operation platform 100, wherein the operation platform 100 includes a front panel 20, a main control panel and a keyboard support structure 10.

In the present application, as shown in fig. 4-5, the keyboard tray structure 10 includes a bottom plate 2, a keyboard tray 1, a tow chain 3 and a cable 4, wherein the keyboard tray 1 is slidably disposed on the bottom plate 2; the keyboard tray 1 can move relative to the base plate 2 to move the drag chain 3.

When pulling out or impel keyboard tray 1, keyboard tray 1 can drive 2 removals of 3 relative bottom plates of tow chain, and cable conductor 4 is accomodate in tow chain 3 all the time, and tow chain 3 drives cable conductor 4 and removes, because tow chain 3 has certain toughness, has the guide effect to the cable for cable conductor 4 can not intertwine, also can not block between keyboard 9 and the bottom plate 2.

In this embodiment, as shown in fig. 2 and 4, the operation platform further includes a slide rail 30, and the keyboard tray 1 slides on the bottom plate 2 through the slide rail 30.

In the present embodiment, as shown in fig. 1 and 5, the panel 20 is covered on the bottom plate 2, and encloses a cavity 21 with the bottom plate 2 to isolate external dust. A main control board (not shown) is disposed on the bottom board 2 and located in the cavity 21, and the cable 4 is connected to the main control board and passes through the tow chain 3, so that the interface 41 of the cable 4 is disposed on the keyboard tray 1.

In some embodiments, as shown in fig. 5, the bottom plate 2 includes a plate body 22 and a containing frame 23 connected to each other, the keyboard tray 1 is slidably disposed on the plate body 22, one end of the drag chain 3 away from the keyboard tray 1 is connected to the containing frame 23, and the keyboard tray 1 can drive the drag chain 3 to move relative to the containing frame 23. In this embodiment, the housing shelf 23 separates the drag chain 3 from other elements on the base plate 2, thereby avoiding wear of the drag chain 3 and other elements on the base plate 2 during movement.

In this embodiment, as shown in fig. 4 and 6-7, the keyboard tray structure 10 further includes a limiting block 5, the limiting block 5 is convexly disposed on the keyboard tray 1, and a side of the limiting block 5 close to the accommodating frame 23 has a limiting protrusion 51, when the keyboard tray 1 is pushed toward the accommodating frame 23, the limiting protrusion 51 can touch the accommodating frame 23, and then there is position interference with the accommodating frame 23, and the accommodating frame 23 gives a resistance to the limiting protrusion 51 to prevent the keyboard tray 1 from being pushed excessively.

In some embodiments, as shown in fig. 4 and fig. 9, the keyboard tray structure 10 further includes a first limiting member 6, and the first limiting member 6 is disposed at an end of the accommodating frame 23 far from the keyboard tray 1 to limit a moving range of the drag chain 3. In this way, when the keyboard tray 1 is pushed toward the housing shelf 23, the first stopper 6 can prevent the drag chain 3 from moving to the outside of the housing shelf 23, and prevent the drag chain 3 from rubbing against other elements on the board 22.

Further, in this embodiment, as shown in fig. 9, the first limiting member 6 includes an extending portion 61 and a bending portion 62, the extending portion 61 is connected to one end of the accommodating frame 23 far away from the keyboard tray 1 and extends toward one side far away from the bottom plate 2, one end of the bending portion 62 is connected to the extending portion 61, and the other end is bent toward the keyboard tray 1. In this embodiment, the tow chain 3 has certain thickness, and extension 61 extends towards the one side that deviates from bottom plate 2 to can realize better spacing to the tow chain 3, in addition, the portion of bending 62 is held in the palm 1 to the keyboard and is buckled, with the removal to the tow chain 3 and lead.

Further, in this embodiment, as shown in fig. 4, the keyboard tray structure 10 further includes a second limiting member 7 to limit the moving range of the tow chain 3, the accommodating frame 23 has two adjacent ends, one end of the accommodating frame is connected to the first limiting member 6, the other end of the accommodating frame is connected to the second limiting member 7, and the second limiting member 7 is disposed between the extending portion 61 and the limiting member 5. As such, in the present embodiment, the first stopper 6 and the second stopper 7 can limit the moving range of the drag chain 3 together when the keyboard tray 1 is pulled out or pushed in.

Specifically, the accommodating frame 23 has an accommodating portion 232 and a supporting portion 231, an end of the tow chain 3 away from the keyboard tray 1 is connected to the accommodating portion 232, the extending portion 61 is connected to an end of the accommodating portion 232 away from the keyboard tray 1, and a side of the supporting portion 231 away from the board 22 protrudes out of a side of the accommodating portion 232 away from the board 22 for mounting the second limiting member 7.

Further, in the present embodiment, as shown in fig. 5 and fig. 9, the keyboard tray structure 10 further includes a fixing member (not shown), the accommodating frame 23 further has a connecting portion 233, and the connecting portion 233 is connected to one end of the supporting portion 231 away from the accommodating portion 232; the connecting portion 233 and the accommodating portion 232 are both provided with a positioning hole 236, the plate body 22 is provided with a positioning column 221, the positioning column 221 is provided with an assembling hole, the fixing member passes through the positioning hole 236 and is assembled in the assembling hole, so that the accommodating frame 23 is fixed on the plate body 22, wherein one side of the supporting portion 231, which is far away from the plate body 22, protrudes out of one side of the connecting portion 233, which is far away from the plate body 22, and the supporting portion 231 and the connecting portion 233 are at the same level so as to adapt to the positioning column 221 of the same model on the plate body 22.

In some embodiments, as shown in fig. 9, the receiving portion 232 has a mounting member 234, and the mounting member 234 extends towards the side facing away from the base plate 2, and the end of the tow chain 3 facing away from the keyboard tray 1 is connected to the mounting member 234. Further, a second wire passing hole 235 is formed near the mounting part 234 of the accommodating part 232, and one end of the cable 4 far away from the keyboard tray 1 passes through the second wire passing hole 235 to be connected to the main control panel.

In some embodiments, as shown in fig. 8, a receiving cavity 111 is opened at a side of the keyboard tray 1 facing the bottom plate 2, and the interface 41 of the cable 4 is received in the receiving cavity 111.

Further, in this embodiment, as shown in fig. 8 and 10, the keyboard tray 1 includes a tray 11 and a connecting member 12, the tray 11 is slidably disposed on the bottom plate 2 and is provided with an accommodating cavity 111, the connecting member 12 covers a cavity opening of the accommodating cavity 111 and encloses the accommodating cavity 111, and the tow chain 3 is connected to the connecting member 12. Therefore, the connector 12 covering the opening of the accommodating cavity 111 can separate the interface 41 of the cable 4 from the outside, so that dust can be prevented from entering, and the connector 12 can be supported to stably accommodate the interface 41 of the cable 4 in the accommodating cavity 111.

In this embodiment, as shown in fig. 8, a holding protrusion 112 may be disposed in the wall of the accommodating cavity 111, and the holding protrusion 112 can hold the interface 41 of the cable 4, so that the interface 41 of the cable 4 is further stably accommodated in the accommodating cavity 111.

In some embodiments, as shown in fig. 4, the tray 11 further has a first receiving groove 113 formed thereon, and the keyboard 9 can be placed in the first receiving groove 113. Specifically, two limiting grooves 114 are formed at the bottom of the first accommodating groove 113, and the limiting grooves 114 are used for placing the protruding portion at the front end of the keyboard 9 to limit the keyboard 9, so that the keyboard 9 is stably accommodated in the first accommodating groove 113.

Further, as shown in fig. 2 and 4, the tray 11 is further provided with a second receiving groove 115 communicated with the receiving cavity 111, the second receiving groove 115 can prevent the socket 91 of the keyboard 9, when the keyboard 9 needs to be used, the keyboard 9 is placed in the first receiving groove 113, the socket 91 of the keyboard 9 is placed in the second receiving groove 115, and the socket 91 is connected to the interface 41 of the cable 4, so that the keyboard 9 and the main control board are electrically connected through the cable 4.

In this embodiment, as shown in fig. 3, 6 and 10, the connecting member 12 has a first gap 121, the tray 11 has a second gap 116, the first gap 121 and the second gap 116 enclose a first wire passing hole 122, the first wire passing hole 122 is communicated with the accommodating cavity 111, and the cable 4 passes through the first wire passing hole 122. In this way, the end of the cable 4 close to the interface 41 can be limited in the first wire passing hole 122 without being wound randomly.

As shown in fig. 11, in the present embodiment, the drag chain 3 includes a plurality of drag chain links 31 hinged in sequence, any adjacent drag chain links 31 rotate along the horizontal direction, so that the drag chain 3 can twist and rotate along the horizontal direction, each drag chain link 31 has a receiving cavity 315, the cable 4 is received in the receiving cavity 315, the drag chain 3 can guide the cable 4 to rotate, and simultaneously avoid the cable 4 from twisting around each other, and prevent the cable 4 from being clamped between the keyboard 9 and the base plate 2.

In the present embodiment, the towline link 31 includes two side plates 313 and a connecting portion 314, wherein the two side plates 313 are disposed oppositely and disposed at two ends of the connecting portion 314 respectively to enclose a storage cavity 315, and the cable 4 is stored in the storage cavity 315. It is understood that the connecting portion 314 may be provided in plural, wherein two connecting portions 314 are oppositely arranged at intervals and are located between the two side plates 313.

In this embodiment, as shown in fig. 12, the side plates 313 include a plug part 3132 and a socket part 3131, the plug part 3132 is connected to the socket part 3131, and two ends of the connecting part 314 are respectively connected to the connection positions of the plug part 3132 and the socket part 3131 on the two side plates 313 to enclose the receiving cavity 315. In the present embodiment, the mating part 3132 and the socket part 3131 are stepped.

In the present embodiment, as shown in fig. 13, the plurality of drag links 31 includes a first drag link 311 and a second drag link 312 which are adjacent to each other, and the sleeve portion 3131 of the first drag link 311 is rotatably connected to the plug portion 3132 of the second drag link 312. In this embodiment, the plugging portion 3132 has a protruding pillar 3133, the sleeve portion 3131 has a connecting hole 3134, the sleeve portion 3131 of the first drag link 311 is sleeved on the plugging portion 3132 of the second drag link 312, and the pillar 3133 of the second drag link 312 is rotatably engaged with the connecting hole 3134 of the second drag link 312.

As shown in fig. 12 and fig. 13 to 14, the outer peripheral wall of the plug 3132 is provided with a limit slot 316, the limit slot 316 has a first slot wall 3161 and a second slot wall 3162 connected to each other, and the limit slot 316 can limit the rotation angle of the drag link 31. Taking the first drag link 311 and the second drag link 312 which are adjacent as an example, the first drag link 311 and the second drag link 312 are rotatably connected, when the first drag link 311 rotates relative to the second drag link 312, the connecting portion 314 of the first drag link 311 abuts against the limiting slot 316 of the second drag link 312, the first slot wall 3161 and the second slot wall 3162 of the limiting slot 316 can limit the rotation range of the connecting portion 314, that is, the rotation range of the first drag link 311 along the horizontal direction is limited, specifically, when the connecting portion 314 of the first drag link 311 rotates to abut against the first slot wall 3161, the first drag link 311 and the second drag link 312 have the maximum inclination angle, and when the connecting portion 314 of the first drag link 311 rotates to abut against the second slot wall 3162, the first drag link 311 is located in the horizontal extension direction of the second drag link 312. It can be understood that the limiting slot 316 is configured to enable the first drag link 311 to rotate along one of the horizontal angles with respect to the second drag link 312, and when a plurality of drag links 31 connected in sequence are provided, the plurality of drag links 31 rotate along the same angle of the adjacent drag link 31, which is beneficial to limiting the rotation direction of the drag chain 3, so that the rotation of the drag chain 3 is smoother.

In another embodiment, the angle of inclination between the first and second groove walls 3161 and 3162 may be obtuse, acute, or right.

Further, in another embodiment, when the included angle between the first groove wall 3161 and the second groove wall 3162 becomes smaller and the length of the first groove wall 3161 becomes shorter, the connecting portion 314 will slide out of the limit slot 316 along the first groove wall 3161 gradually, so that the rotation angle of the two trailing links 31 becomes larger, as shown in fig. 15, the included angle between the first groove wall 3161 and the second groove wall 3162 may be A, B, C, where a > B > C, and the first groove wall 3161 after the angle of the limit slot 316 is changed may be 3161a and 3161B, where 3161a >3161B, and the changed first groove walls (3161a, 3161B) become shorter and cannot abut against the connecting portion 314 gradually, so that the rotation angle of the two trailing links 31 becomes larger. However, when the included angle between the first groove wall 3161 and the second groove wall 3162 exceeds a certain angle, the two sleeve-connection portions 3131 will abut against each other to limit the two drag link units 31. As shown in fig. 13, since two sockets 3131 are disposed at the connection position of two drag chain links 31, the two sockets 3131 abutting against each other will cause the two drag chain links 31 to easily separate from each other, thereby affecting the use of the drag chain. In this embodiment, the included angle between the first groove wall 3161 and the second groove wall 3162 is set to 120 degrees to 160 degrees. Due to the arrangement, the influence on the rotation angles of the two drag chain links 31 caused by too small included angles between the first groove wall 3161 and the second groove wall 3162 can be avoided; the problem that the two sleeved portions 3131 abut against each other due to too large included angle between the first groove wall 3161 and the second groove wall 3162 can be avoided.

In another embodiment, an included angle between the first groove wall 3161 and the second groove wall 3162 may be constant, and the length of the first groove wall 3161 is gradually shortened, so that the connecting portion 314 gradually slides out of the limiting clamping groove 316 along the first groove wall 3161, and the rotation angle of the two trailing link units 31 is increased, as shown in fig. 16, the included angle between the first groove wall 3161 and the second groove wall 3162 may be a, and the length of the first groove wall 3161 after the angle of the limiting clamping groove 316 is changed is shortened, and the connecting portion 314 cannot be gradually abutted, so that the rotation angle of the two trailing link units 31 is increased.

In another embodiment, as shown in fig. 11, the keyboard holder structure in this application further includes a first joint 317 and a second joint 318 respectively connected to two ends of the drag chain 3, one end of the drag chain 3 is connected to the connecting member through the first joint 317, and the other end is connected to the accommodating frame through the second joint 318.

In some embodiments, as shown in fig. 6 to 7, the keyboard holder structure 10 further includes a third limiting member 8, the third limiting member 8 is protruded from the tray 11, and the third limiting member 8 can limit the moving range of the drag chain 3 along the vertical direction. Specifically, the third limiting member 8 has a limiting tooth 81, and the limiting tooth abuts against the tow chain 3 at the connecting member 12, so that the moving range of the tow chain 3 along the vertical direction can be limited. So set up for the tow chain 3 is in the horizontal direction, can not protruding, and then avoids the tow chain 3 to block between keyboard 9 and bottom plate 2 because of the arch. It is understood that, for example, in the present application, the third limiting member may limit the direction of the second drag link 312, and when the connecting portion 314 of the first drag link 311 rotates to abut against the second groove wall 3162 of the second drag link 312, the first drag link 311 is located in the horizontal extension direction of the second drag link 312, and thus the first drag link 311 is indirectly limited by the third limiting member.

Further, as shown in fig. 2-3 and fig. 5, in the present application, the cooperation of the first limiting member 6, the second limiting member 7, the third limiting member 8 and the drag chain 3 is described, the extending direction of the third limiting member 8 is parallel to the sliding direction of the keyboard holder 1, the first limiting member 6 includes a bending portion 62 and an extending portion 61, the extending portion 61 is perpendicular to the third limiting member 8, the bending portion 62 bends toward the keyboard holder 1, the bending portion 62 and the extending portion 61 form a first included angle (not shown), and the extending direction of the bending portion 62 intersects with the extending direction of the keyboard holder 1 to form a second included angle (not shown); the second limiting member 7 has a limiting surface 71, the limiting surface 71 deflects toward the extending portion 61, an extending direction of the limiting surface 71 intersects with an extending direction of the extending portion 61 to form a third included angle (not shown), and angles of the first included angle, the second included angle and the third included angle are all smaller than or equal to a rotation angle (for example, shown as C in fig. 2-3) presented by the tow chain 3 at the corresponding position, so as to limit the rotation of the tow chain 3.

The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications and equivalents of the subject matter of the present application, which are made by the following claims and their equivalents, or which are directly or indirectly applicable to other related arts, are intended to be included within the scope of the present application.

Claims (10)

1. A keyboard tray structure, comprising:

a base plate;

the keyboard tray is arranged on the bottom plate in a sliding mode;

one end of the drag chain is connected with the bottom plate, and the other end of the drag chain is connected with the keyboard support;

the cable is arranged through the drag chain; the keyboard tray can move relative to the bottom plate so as to drive the drag chain to move.

2. The keyboard tray structure of claim 1, wherein the bottom plate comprises a plate body and a containing frame connected with each other, the keyboard tray is slidably disposed on the plate body, one end of the drag chain away from the keyboard tray is connected to the containing frame, and the keyboard tray can drive the drag chain to move relative to the containing frame.

3. The keyboard tray structure of claim 2, wherein the tow chain comprises tow chain links which are sequentially and rotatably connected, each tow chain link comprises two side plates and a connecting part, the two side plates are oppositely arranged and respectively arranged at two ends of the connecting part to form a containing cavity in a surrounding manner, the cable is arranged in the containing cavity in a penetrating manner, and a limiting clamping groove is formed in the outer peripheral wall of one side plate;

the connecting part of the drag chain link is accommodated in the limit clamping groove of the adjacent drag chain link, and when the drag chain link rotates to a preset position around the adjacent drag chain link, the connecting part supports against the groove wall of the limit clamping groove so as to limit the rotation angle of the drag chain link.

4. The keyboard tray structure of claim 3, further comprising a first stop disposed at an end of the receiving frame away from the keyboard tray to limit a rotation angle of the drag link.

5. The keyboard tray structure of claim 4, further comprising a third limiting member protruding from the keyboard tray, wherein when the tow chain link abuts against the third limiting member, the third limiting member limits a rotation angle of the tow chain, so that the tow chain moves along a sliding direction of the keyboard tray.

6. The keyboard tray structure of any one of claims 1-5, wherein a receiving cavity is formed in a side of the keyboard tray facing the bottom plate, and the interface of the cable is received in the receiving cavity.

7. The keyboard tray structure of claim 6, wherein the keyboard tray comprises a tray and a connecting member, the tray is slidably disposed on the bottom plate and defines a receiving cavity, the connecting member covers a notch of the receiving cavity and defines the receiving cavity, and the tow chain is connected to the connecting member.

8. The keyboard tray structure of claim 7, wherein the connecting member defines a first gap, the tray defines a second gap, the first gap and the second gap enclose a first wire through hole, the first wire through hole is communicated with the accommodating cavity, and the cable passes through the first wire through hole.

9. An operation platform, characterized in that, includes panel, main control board and the keyboard of any claim 1 ~ 8 holds in the palm the structure, the panel lid is located the bottom plate, the main control board set up in the bottom plate, cable conductor connect in the main control board and wear to locate the tow chain, so that the interface of cable conductor set up in the keyboard holds in the palm.

10. A trolley, characterized in that it comprises an operating platform according to claim 9.

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