CN216647252U - A connection structure for shielding computer display screen more - Google Patents

Abstract

The utility model provides a connecting structure for display screens of a multi-screen computer, which belongs to the field of computer accessories and adopts the following scheme: the device comprises a fixed base and a detachable base, wherein a first rotating pipe and a bidirectional limiting mechanism are arranged on the fixed base, a rotating shaft is arranged in the first rotating pipe and is fixedly connected with the rotating shaft, the length of the rotating shaft is greater than that of the first rotating pipe, one end of the rotating shaft extends out of the first rotating pipe, and the extending end of the rotating shaft is connected with the bidirectional limiting mechanism; the fixed base is hinged with the first rotating pipe through a rotating shaft, a clamping groove is formed in one side of the first rotating pipe, a corresponding clamping block can be arranged on the base in a detachable mode, and the clamping groove is in clamping fit with the clamping block. The device has simple structure and convenient assembly and disassembly, and realizes the locking of the rotating shaft and the bidirectional rotation limit through the bidirectional limit mechanism; through two drive eccentric cams of rotatory cam handle, realized pivot subassembly's quickly separating and merge, reached the display screen and can pass through the effect of another upset main part fast at the upset in-process.

Description

A connection structure for shielding computer display screen more

Technical Field

This patent relates to the computer fittings field, especially relates to a connection structure for having more screens of computer display.

Background

The hinge is often used as an opening and closing spare and accessory part at present and is applied to a computer, the adjacent display screens need the hinge as joints thereof, the control of the angle between the display screens is realized through the rotation of a rotating shaft, along with the gradual application of a foldable double-screen or multi-screen computer, the working position between the display screens determines the working occasion of the computer, and the change of the working state of the computer is often realized through the overturning and the separation between the display screens.

However, the traditional hinge structure cannot perform bidirectional rotation limiting and locking positioning, so that equipment is easily damaged, the structure of a rotating shaft assembly is complex due to the improvement of the conventional hinge structure, the size occupied by the rotating shaft assembly is increased while the manufacturing cost is increased, and the realization of lightness, thinness and portability of a computer is not facilitated.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects that the bidirectional rotation limiting and the quick separation and combination of a rotating shaft assembly cannot be realized in the prior art, the utility model provides a connecting structure for a multi-screen computer display screen.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a connecting structure for multi-screen computer display screens comprises a fixed base and a detachable base, wherein a first rotating pipe and a two-way limiting mechanism are arranged on the fixed base, a rotating shaft is arranged in the first rotating pipe and is fixedly connected with the rotating shaft, the length of the rotating shaft is greater than that of the first rotating pipe, one end of the rotating shaft extends out of the first rotating pipe, and the extending end of the rotating shaft is connected with the two-way limiting mechanism; the fixed base is hinged with the first rotating pipe through a rotating shaft, one side of the first rotating pipe is provided with a clamping groove, a corresponding clamping block is arranged on the detachable base, and the clamping groove is in clamping fit with the clamping block. When two display screens connected with the detachable base and the fixed base need to be detached from each other, the fixture block on the detachable base is driven to translate along the length direction of the rotating shaft relative to the first rotating pipe, so that the fixture block and the fixture groove are detached, the detachable base is detached from the first rotating pipe, and the effect that the two display screens can be rapidly detached is achieved; when two display screens which are respectively connected with the detachable base and the fixed base are required to rotate around the rotating shaft, the clamping groove is matched with the clamping block, and the detachable base and the fixed base are both connected with the rotating pipe I, so that the change of an included angle between the two display screens is realized; meanwhile, the two-way limiting mechanism is driven to enable the two display screens to be in a locking state and realize two-way rotation limiting, so that the multi-screen computer can be suitable for different working occasions, the rotating shaft is prevented from rotating in the moving process, and the display screens are prevented from being damaged.

Furthermore, the bidirectional limiting mechanism comprises a ratchet wheel and a hollow shell, the hollow shell is fixedly connected with one end of the fixed base, the ratchet wheel is fixedly connected with the rotating shaft and is located at the end part of the rotating shaft, limiting clamping jaws capable of being meshed with the ratchet wheel are arranged on the left side and the right side of the ratchet wheel, the limiting clamping jaws are rotatably connected with the hollow shell, a swing mechanism is arranged between the two limiting clamping jaws, and the two limiting clamping jaws are in contact with the swing mechanism. The two limiting clamping jaws can be driven to swing in a reciprocating manner by driving the swing mechanism, so that the meshing state between the limiting clamping jaws and the ratchet wheel is changed, and if the two limiting clamping jaws are meshed with the ratchet wheel, the rotating shaft is fixed, and the two display screens are in a locking state; if only the left limiting claw is meshed with the ratchet wheel, the rotating shaft can only rotate clockwise; if only the right limiting claw is meshed with the ratchet wheel, the rotating shaft can only rotate along the anticlockwise direction; the hollow shell and the ratchet wheel are arranged at one end of the rotating shaft, so that the internal volume of the connecting structure can be reduced, and the portability and the lightness of the computer are ensured.

Furthermore, the swing mechanism comprises a triangular cam and two springs, the triangular cam is positioned between the two limiting clamping jaws and is in contact with one side of the two limiting clamping jaws, and the two springs are respectively arranged on the opposite sides of the two limiting clamping jaws; one end of the spring is fixedly connected with the limiting clamping jaw, and the other end of the spring is fixedly connected with the inner wall of the hollow shell. The arrangement of the spring can enable the limiting clamping jaw to be always in contact with the triangular cam, and the limiting clamping jaw is guaranteed to swing along with the rotation of the triangular cam.

Furthermore, the device also comprises a first L-shaped cam handle, wherein the first L-shaped cam handle comprises a first connecting rod and a first operating part which are perpendicular to each other; one end of the first connecting rod penetrates through the hollow shell to be fixedly connected with the triangular cam, the other end of the first connecting rod is fixedly connected with the first operating part, and the first operating part is positioned on the outer side of the hollow shell; the hollow shell is further provided with a limiting block, and the operation part is located in a V-shaped groove formed by the limiting block in an enclosing mode. The limiting block is arranged to limit the rotating angle of the first cam handle, so that the rotating angle of the first cam handle and the rotating angle of the triangular cam are limited.

Further, can break away from the base and include fixed part and sliding part, the fixture block sets up on the sliding part, and the sliding part is located the inside of fixed part to with fixed part sliding connection, install cam mechanism on the sliding part, cam mechanism can drive the sliding part and slide along pivot length direction, drive fixture block and draw-in groove throw off or cooperate. The fixture block is arranged on the sliding part, and the sliding part can be driven to slide relative to the fixed part to realize the translation of the fixture block along the length direction of the rotating shaft, so that the thrust required for pushing the fixture block to slide is reduced.

Further, cam mechanism includes eccentric cam and cam groove, and the cam groove runs through the setting of sliding part, and eccentric cam installs in the cam groove, and the outer fringe face of eccentric cam contacts with the inner wall of cam groove, and eccentric cam and two fixed connection of cam handle rotate cam handle two and can drive eccentric cam and rotate and promote the sliding part and slide. The rotating cam handle II drives the eccentric cam to rotate along the cam groove, so that the groove wall of the cam groove is pushed to drive the sliding part to move, the rotation of the eccentric cam can be converted into the translation of the sliding part, and the reciprocating translation of the clamping block along the length direction of the rotating shaft is realized.

Furthermore, the cam handle II is L-shaped and comprises a connecting rod II and an operating part II which are perpendicular to each other; one end of the second connecting rod penetrates through the fixing portion to be fixedly connected with the eccentric cam, the other end of the second connecting rod is connected with the second operating portion, a positioning bead is arranged on one side, close to the fixing portion, of the second operating portion, a positioning groove is formed in the corresponding position of the fixing portion, and the positioning bead is matched with the cross section of the positioning groove in shape. The positioning locking of the eccentric cam can be realized in an auxiliary mode, the reliability of the matching of the clamping block and the clamping groove is guaranteed, and the clamping block is prevented from being disengaged from the clamping groove.

Furthermore, the fixing part is further provided with two limiting parts distributed along the length direction of the rotating shaft, the two limiting parts are symmetrically arranged on two sides of the second connecting rod, and when the positioning beads are matched with the positioning grooves, the limiting parts are in contact with the second operating part. The cam handle II can be assisted and limited, the rotating angle range of the cam handle II is limited, and the reciprocating translation distance of the sliding part is ensured.

Furthermore, the eccentric cam mechanism further comprises two groups of guide mechanisms, and the two groups of guide mechanisms are respectively arranged on two sides of the eccentric cam. The force of the eccentric cam applied to the sliding part in other directions can be better counteracted, and the stability of the movement of the clamping block is favorably ensured.

Furthermore, the first rotating pipe is provided with two clamping grooves, the second rotating pipe is arranged on the fixed base and hinged with the rotating shaft, and the second rotating pipe is located between the two clamping grooves along the length direction of the rotating shaft. The two clamping grooves are arranged, stability of a dynamic process is convenient to guarantee, and reliability of the device is improved.

According to the technical scheme, the utility model has the following advantages:

the connecting structure for the display screens of the multi-screen computer is simple in structure and convenient to assemble and disassemble, and the meshing condition of the ratchet wheel and the two limiting clamping jaws can be changed by shifting the first cam handle, so that the locking and the bidirectional rotation limiting of the rotating shaft are realized; the eccentric cam is driven by the rotating cam handle II to drive the sliding part to move horizontally in a reciprocating mode, so that the clamping block and the clamping groove are matched and separated, the rotating shaft assembly is quickly separated and combined, and the effect that the display screen can be quickly transited to another overturning main body in the overturning process is achieved.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a bottom view of fig. 1.

Fig. 3 is a top view of fig. 1.

Fig. 4 is a partial cross-sectional view of fig. 3.

Fig. 5 is a right side view of fig. 1.

Fig. 6 is a partial cross-sectional view of fig. 5.

Fig. 7 is a rear view of fig. 1.

Fig. 8 is a partial cross-sectional view of fig. 7.

In the figure, 1, a rotating shaft, 2, a first rotating pipe, 3, a second rotating pipe, 4, a clamping groove, 5, a clamping block, 6, a fixed base, 7, a detachable base, 8, a fixed part, 9, a sliding part, 10, a ratchet, 11, a hollow shell, 12, a limiting clamping claw, 13, a triangular cam, 14, a spring, 15, a first cam handle, 16, a first connecting rod, 17, a first operating part, 18, a limiting block, 19, a V-shaped groove, 20, an eccentric cam, 21, a cam groove, 22, a second cam handle, 23, a second connecting rod, 24, a second operating part, 25, a positioning groove, 26, a positioning ball, 27, a limiting part, 28 and a guide mechanism.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.

As shown in fig. 1 to 8, a connection structure for multi-screen computer display screens fixes a base 6 and a detachable base 7, the fixed base 6 is provided with a first rotating pipe 2 and a two-way limiting mechanism, a rotating shaft 1 is installed in the first rotating pipe 2 and is fixedly connected with the rotating shaft 1, the length of the rotating shaft 1 is greater than that of the first rotating pipe 2, one end of the rotating shaft extends out of the first rotating pipe 2, and the extending end of the rotating shaft 1 is connected with the two-way limiting mechanism; the fixed base 6 is hinged with the rotating pipe I2 through the rotating shaft 1, one side of the rotating pipe I2 is provided with a clamping groove 4, a corresponding clamping block 5 is arranged on the detachable base 7, and the clamping groove 4 is in clamping fit with the clamping block 5.

Specifically, be provided with two draw-in grooves 4 on the rotating pipe 2, be provided with rotating pipe two 3 on the fixed baseplate 6, rotating pipe two 3 is articulated with pivot 1, along 1 length direction of pivot, and rotating pipe two 3 is located between two draw-in grooves 4. In the specific implementation process, a groove can be formed in the outer side of the first rotating pipe 2, the second rotating pipe 3 is installed in the groove, the first rotating pipe 2 and the second rotating pipe 3 are sleeved on the rotating shaft 1, the first rotating pipe 2 is in interference fit with the rotating shaft 1, the second rotating pipe 3 is in clearance fit with the rotating shaft 1, the rotating shaft 1 is fixedly connected with the first rotating pipe 2, and the rotating shaft 1 is hinged with the second rotating pipe 3; the second rotating pipe 3 can be directly connected with the fixed base 6, or as shown in fig. 1, the second rotating pipe 3 is connected with the fixed base 6 through a fixed pin and a connecting plate, so that the fixed base 6 can be detachably connected with the second rotating pipe 3; the two clamping grooves 4 are arranged, stability of a dynamic process is convenient to guarantee, the fixed base 6 is rotatably connected with the rotating pipe I2 through the rotating pipe II 3 to prevent interference of reciprocating translation of the clamping block 5, and reliability of the device is improved.

In this embodiment, the detachable base 7 has the following specific structure: the detachable base 7 comprises a fixing portion 8 and a sliding portion 9, the clamping block 5 is arranged on the sliding portion 9, the sliding portion 9 is located inside the fixing portion 8 and is in sliding connection with the fixing portion 8, a cam mechanism is mounted on the sliding portion 9, and the cam mechanism can drive the sliding portion 9 to slide along the length direction of the rotating shaft 1 to drive the clamping block 5 to be detached from or matched with the clamping groove 4. The fixture block 5 is installed on the sliding portion 9, and the sliding portion 9 can be driven to slide relative to the fixing portion 8, so that the fixture block 5 can translate along the length direction of the rotating shaft 1, and thrust required for pushing the fixture block 5 to slide can be reduced conveniently.

The cam mechanism comprises an eccentric cam 20 and a cam groove 21, the cam groove 21 penetrates through the sliding portion 9, the eccentric cam 20 is installed in the cam groove 21, the outer edge surface of the eccentric cam 20 is in contact with the inner wall of the cam groove 21, the eccentric cam 20 is fixedly connected with a second cam handle 22, and the second cam handle 22 can drive the eccentric cam 20 to rotate and push the sliding portion 9 to slide. In the present embodiment, the eccentric cam 20 can be in a self-locking state with the cam groove 21 when rotated to 0 ° and 180 °; the second rotating cam handle 22 drives the eccentric cam 20 to rotate along the cam groove 21, so that the groove wall of the cam groove 21 is pushed to drive the sliding part 9 to move, the rotation of the eccentric cam 20 can be converted into the translation of the sliding part 9, and the reciprocating translation of the fixture block 5 along the length direction of the rotating shaft 1 is realized.

As shown in fig. 6, the second cam handle 22 is L-shaped, and includes a second connecting rod 23 and a second operating part 24 that are perpendicular to each other; one end of the second connecting rod 23 penetrates through the fixing part 8 to be fixedly connected with the eccentric cam 20, the other end of the second connecting rod is connected with the second operating part 24, a positioning bead 26 is arranged on one side, close to the fixing part 8, of the second operating part 24, a positioning groove 25 is arranged at the corresponding position of the fixing part 8, and the positioning bead 26 is matched with the cross section of the positioning groove 25 in shape. The arrangement of the positioning balls 26 and the positioning grooves 25 can assist in realizing the positioning and locking of the eccentric cam 20, ensure the reliability of the matching of the fixture block 5 and the clamping groove 4 and prevent the fixture block 5 from being separated from the clamping groove 4.

On the other hand, the fixing portion 8 is further provided with two limiting portions 27 distributed along the length direction of the rotating shaft 1, the two limiting portions 27 are symmetrically arranged on two sides of the second connecting rod 23, and when the positioning beads 26 are matched with the positioning grooves 25, the limiting portions 27 are in contact with the second operating portion 24. The cam handle II 22 can be limited in an auxiliary mode, the rotating angle range of the cam handle II 22 is limited, and the reciprocating translation distance of the sliding part 9 is guaranteed.

As shown in fig. 7, a detachable cover plate may be provided above the sliding portion 9, and the cover plate is easy to detach and replace parts, and is easy and convenient to operate.

Based on the specific structure of the detachable portion, the detachable portion further includes two sets of guide mechanisms 28, and the two sets of guide mechanisms 28 are respectively disposed on two sides of the eccentric cam 20. As shown in fig. 8, the guide mechanisms 28 are provided on the upper and lower sides of the eccentric cam 20 (see the relative positional relationship of the respective components in fig. 8), and the center lines of the guide mechanisms 28 extending in the moving direction of the slide portion 9 are parallel to each other and located on the left and right sides of the eccentric cam 20. The force applied to the sliding part 9 by the eccentric cam 20 in other directions can be better counteracted, and the stability of the movement of the fixture block 5 is favorably ensured.

In this embodiment, the specific structure of the guiding mechanism 28 may be as shown in fig. 8, each group of guiding mechanisms 28 is provided with a strip-shaped hole and a guiding column, the diameter of the guiding column is adapted to the width of the strip-shaped hole, the strip-shaped hole is located on the sliding portion 9 and extends along the length direction of the sliding portion 9, the guiding column is installed in the strip-shaped hole, the lower end of the guiding column is connected to the fixing portion 8, and when the sliding portion 9 moves, the guiding column slides along the strip-shaped hole; the sliding direction of the sliding part 9 can be ensured, and the fixture block 5 can be ensured to reciprocate along the length direction of the rotating shaft 1.

As shown in fig. 3 and 4, the specific structure of the bidirectional limiting mechanism is as follows: the bidirectional limiting mechanism comprises a ratchet wheel 10 and a hollow shell 11, the hollow shell 11 is fixedly connected with one end of the fixed base 6, the ratchet wheel 10 is fixedly connected with the rotating shaft 1 and is located at the end part of the rotating shaft 1, limiting clamping jaws 12 capable of being meshed with the ratchet wheel 10 are arranged on the left side and the right side of the ratchet wheel 10 respectively, the limiting clamping jaws 12 are rotatably connected with the hollow shell 11, a swing mechanism is arranged between the two limiting clamping jaws 12, and the two limiting clamping jaws 12 are all in contact with the swing mechanism. The two limiting clamping jaws 12 can be driven to swing in a reciprocating mode through the driving swing mechanism, so that the meshing state between the limiting clamping jaws 12 and the ratchet wheel 10 is changed, if the two limiting clamping jaws 12 are meshed with the ratchet wheel 10, the rotating shaft 1 is fixed, and the two display screens are in a locking state; if only the left limiting claw 12 is meshed with the ratchet wheel 10, the rotating shaft 1 can only rotate along the clockwise direction; if only the right limiting claw 12 is meshed with the ratchet wheel 10, the rotating shaft 1 can only rotate along the anticlockwise direction; the hollow housing 11 and the ratchet 10 are disposed at one end of the rotating shaft 41, so that the internal volume of the connecting structure can be reduced, and portability and lightness of the computer can be ensured.

Specifically, as shown in fig. 4, the swing mechanism includes a triangular cam 13 and two springs 14, the triangular cam 13 is located between the two limiting claws 12 and is in contact with one side of the two limiting claws 12 opposite to each other, and the two springs 14 are respectively arranged on the opposite sides of the two limiting claws 12; one end of the spring 14 is fixedly connected with the limiting claw 12, and the other end is fixedly connected with the inner wall of the hollow shell 11. The arrangement of the spring 14 can enable the limiting claw 12 to be always in contact with the triangular cam 13, and the limiting claw 12 is guaranteed to swing along with the rotation of the triangular cam 13.

In addition, the bidirectional limiting mechanism further comprises a first L-shaped cam handle 15, and the first L-shaped cam handle 15 comprises a first connecting rod 16 and a first operating part 17 which are perpendicular to each other; one end of a first connecting rod 16 penetrates through the hollow shell 11 to be fixedly connected with the triangular cam 13, the other end of the first connecting rod is fixedly connected with a first operating part 17, and the first operating part 17 is positioned on the outer side of the hollow shell 11; the hollow shell 11 is further provided with a limiting block 18, and the first operating part 17 is located in a V-shaped groove 19 formed by the limiting block 18. The limiting block 18 is arranged to limit the rotation angle of the cam handle I15, so as to limit the rotation angle of the cam handle I and the triangular cam 13.

The working principle of the connecting structure for the multi-screen computer display screen is as follows: when the first cam handle 15 is pulled, the triangular cam 13 can be driven to rotate, and then the two limiting claws 12 in contact with the triangular cam 13 are driven to swing in a reciprocating manner, when the two limiting claws 12 are both meshed with the ratchet wheel 10, the rotating shaft 1 is fixed, and the two display screens are in a locking state; when the first cam handle 15 is pulled leftwards, only the left limiting claw 12 is meshed with the ratchet wheel 10, and the rotating shaft 1 can only rotate clockwise; when the first cam handle 15 is pulled rightwards, only the right limiting claw 12 is meshed with the ratchet wheel 10, and the rotating shaft 1 can only rotate along the anticlockwise direction.

When only the fixed base 6 and the detachable base 7 need to rotate around the rotating shaft 1, the eccentric cam 20 is located at the initial 0-degree position and is in a self-locking state with the cam groove 21, at the moment, the clamping block 5 is matched with the clamping groove 4, the rotating pipe I2 is connected with the detachable base 7, and the two display screens connected with the fixed base 6 and the detachable base 7 can rotate around the rotating shaft 1; when the fixed base 6 and the detachable base 7 need to be separated from each other, the rotating cam handle II 22 drives the eccentric cam 20 to rotate, the sliding part 9 is further pushed to move along the length direction of the rotating shaft 1, the relative movement between the clamping block 5 and the clamping groove 4 is realized, when the eccentric cam 20 rotates to 180 degrees, the eccentric cam 20 and the cam groove 21 are self-locked again, the clamping block 5 and the clamping groove 4 are completely separated, the detachable base 7 and the rotating pipe I2 are separated from each other, the two display screens connected with the fixed base 6 and the detachable base 7 are separated from each other, and the effect that the display screens can be rapidly transited to another overturning main body in the overturning process is achieved; when it is desired to re-incorporate the fixed base 6 with the detachable base 7 fixed together: the fixture block 5 is aligned to the clamping groove 4, the second cam handle 22 is rotated until the second operation portion 24 is in contact with the limiting portion 27 again, and at the moment, the positioning bead 26 is fixed in the positioning groove 25, so that the fixture block 5 can be matched with the clamping groove 4 again, and the rapid separation and combination of the rotating shaft assembly are further achieved.

The terms "upper", "lower", "outside", "inside", and the like in the description and claims of the present invention and the above-described drawings (if any) are used for distinguishing relative positions without necessarily being construed qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A connecting structure for multi-screen computer display screens is characterized by comprising a fixed base and a detachable base, wherein a first rotating pipe and a two-way limiting mechanism are arranged on the fixed base; the fixed base is hinged with the first rotating pipe through a rotating shaft, one side of the first rotating pipe is provided with a clamping groove, a corresponding clamping block is arranged on the detachable base, and the clamping groove is in clamping fit with the clamping block.

2. A connection structure for display screens of computers according to claim 1, wherein the two-way position limiting mechanism includes a ratchet wheel and a hollow housing, the hollow housing is fixedly connected to one end of the fixed base, the ratchet wheel is fixedly connected to the rotary shaft and located at an end portion of the rotary shaft, both left and right sides of the ratchet wheel are provided with position limiting claws capable of meshing with the ratchet wheel, the position limiting claws are rotatably connected to the hollow housing, a swing mechanism is provided between the two position limiting claws, and both the two position limiting claws are in contact with the swing mechanism.

3. A connection structure for display screens of computers according to claim 2, wherein the swing mechanism includes a triangular cam and two springs, the triangular cam being located between the two limit claws and contacting a side opposite to the two limit claws, the two springs being respectively provided on opposite sides of the two limit claws; one end of the spring is fixedly connected with the limiting clamping jaw, and the other end of the spring is fixedly connected with the inner wall of the hollow shell.

4. A connection structure for display screens of a multi-screen computer according to claim 2, further comprising a first L-shaped cam handle including a first link and a first operating portion which are perpendicular to each other; one end of the first connecting rod penetrates through the hollow shell to be fixedly connected with the triangular cam, the other end of the first connecting rod is fixedly connected with the first operating part, and the first operating part is positioned on the outer side of the hollow shell; the hollow shell is further provided with a limiting block, and the operation part is located in a V-shaped groove formed by the limiting block in an enclosing mode.

5. A connection structure for display screens of computers as claimed in claim 1, wherein the detachable base includes a fixing portion and a sliding portion, the latching unit is disposed on the sliding portion, the sliding portion is disposed inside the fixing portion and slidably connected to the fixing portion, and a cam mechanism is mounted on the sliding portion and can drive the sliding portion to slide along the length direction of the rotation shaft to disengage or engage the latching unit with the latching groove.

6. A connection structure for display screens of computers according to claim 5, wherein the cam mechanism includes an eccentric cam and a cam groove, the cam groove is provided through the sliding part, the eccentric cam is installed in the cam groove, an outer edge surface of the eccentric cam contacts with an inner wall of the cam groove, the eccentric cam is fixedly connected with the second cam handle, and the second cam handle can drive the eccentric cam to rotate and push the sliding part to slide.

7. A connection structure for display screens of a multi-screen computer according to claim 6, wherein the second cam handle is L-shaped and includes a second link and a second operating portion that are perpendicular to each other; one end of the second connecting rod penetrates through the fixing portion to be fixedly connected with the eccentric cam, the other end of the second connecting rod is connected with the second operating portion, a positioning bead is arranged on one side, close to the fixing portion, of the second operating portion, a positioning groove is formed in the corresponding position of the fixing portion, and the positioning bead is matched with the cross section of the positioning groove in shape.

8. A connection structure for display screens of a multi-screen computer according to claim 7, wherein the fixing portion is further provided with two position limiting portions distributed along the length direction of the rotation shaft, the two position limiting portions are symmetrically arranged on both sides of the second connection rod, and when the positioning beads are fitted with the positioning grooves, the position limiting portions contact the second operation portion.

9. A connection structure for display screens of a multi-screen computer according to claim 6, further comprising two sets of guide mechanisms, each set of guide mechanisms being disposed on either side of an eccentric cam.

10. A connection structure for display screens of a multi-screen computer according to claim 1, wherein a first rotary tube is provided with two slots, a second rotary tube is provided on the fixed base, the second rotary tube is hinged to the rotary shaft, and the second rotary tube is located between the two slots along the length direction of the rotary shaft.

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