Top rotary telescopic connecting device

Abstract

The invention relates to the field of rail transit platform screen doors, in particular to a top rotating telescopic connecting device. The connecting device comprises a rotating mechanism, a transverse mechanism, a longitudinal mechanism and a linkage locking mechanism, wherein the rotating mechanism comprises a rotating shaft, a rotating shaft seat and a transverse sliding rod sleeve; the transverse mechanism comprises a transverse sliding rod extending into a transverse sliding rod sleeve, and a longitudinal sliding rod sleeve is arranged at one end of the transverse sliding rod. The longitudinal mechanism comprises a sliding rod rotating shaft installed in a longitudinal sliding rod sleeve and a stand column connecting plate located at the bottom of the sliding rod rotating shaft. The stand column connecting plate is connected with a stand column of the shielding door. The linkage locking mechanism comprises receding grooves formed in the rotating shaft, the transverse sliding rod and the sliding rod rotating shaft, a plurality of balls arranged in the receding grooves and locking pins capable of being rotationally inserted into the corresponding receding grooves. When the locking pins are inserted into the corresponding receding grooves, the balls are extruded, so that friction locking is generated between the balls and corresponding parts. By means of three-axis linkage adjustment and linkage locking, multi-dimensional alignment of the stand columns of the shielding door can be completed through one-time operation, and the installation time is shortened.

Description

Technical Field

[0001] The invention relates to the field of rail transit screen doors, in particular to a top rotating telescopic connecting device. Background Art

[0002] Among the supporting facilities of the subway, the platform screen door is a tunnel protection device, which is mainly used to open synchronously with the subway doors to allow passengers to get on and off the train. The pillars of the platform screen door are fixed on the fixed beams of the tunnel. Due to the fluctuation of the thickness of the fixed beams on the tunnel and the displacement of the position, it is usually necessary to adjust the installation position of the platform screen door pillars in three dimensions: up and down, left and right, and front and back, so that the movement range of the platform screen door is uniform. Figure 1 and Figure 2 As shown, two upper and lower connecting seats are used. The upper connecting seat is connected to the fixed beam, and the lower connecting seat is connected to the shield door column. The position of the installation plate is adjusted through the long waist holes in the up and down, left and right, and front and back directions. The shield door columns need to be in one line so that the installed shield door can be straight. It is time-consuming and labor-intensive to adjust several connecting plates to match the shield door columns, which is extremely cumbersome.

[0003] Patent application number 201911182774.X discloses a top support telescopic device for rail transit platform screen doors. The device comprises a connecting seat, left and right clamping plates, and an adjustment mechanism. The adjustment mechanism moves the two clamping plates toward a fixed beam to clamp the beam. The clamping plates are controlled by a bevel gear linkage, thereby driving the columns relative to the fixed beam until the columns are aligned and the platform screen door is installed. However, this arrangement makes adjustment on both sides complex and only allows adjustment in one direction.

[0004] Application number 201921926144.4 discloses a top support telescopic device for rail transit platform screen doors, which includes a connecting seat, left and right clamping plates and an adjustment device. The adjustment device is used to simultaneously move the clamping plates on both sides toward the fixed beam to clamp the fixed beam. This is an extension of the center of the fixed beam, which only solves the complicated operation of bolts passing through the beam, and still cannot ensure the matching of the platform screen door for three-axis linkage adjustment connection. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: in order to solve the problems in the prior art of the above-mentioned background technology that the adjustment method is single, three-axis linkage adjustment cannot be achieved, the installation process is cumbersome and time-consuming, and it is difficult to ensure the straightness consistency of multiple shielding door columns, a top rotating telescopic connection device is provided, which can be easily adjusted to match the connection with the shielding door column.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a top rotating telescopic connection device, comprising: The rotating mechanism includes a fixed beam connecting plate connected to the crossbeam and a rotating shaft installed at the end of the fixed beam connecting plate. The lower part of the rotating shaft is provided with a rotating shaft seat, and the bottom of the rotating shaft seat is connected to a transverse sliding rod sleeve; The transverse mechanism includes a transverse slide rod extending into the transverse slide rod sleeve, and one end of the transverse slide rod extending out of the transverse slide rod sleeve is provided with a longitudinal slide rod sleeve; The longitudinal mechanism includes a slide rod shaft installed in the longitudinal slide rod sleeve and a column connecting plate located at the bottom of the slide rod shaft, and the column connecting plate is connected to the column of the screen door; The linkage locking mechanism includes a clearance groove provided on the rotating shaft, the transverse slide bar and the slide bar rotating shaft, a plurality of balls provided in each clearance groove, and a locking pin rotatably inserted into the corresponding clearance groove; Among them, when the locking pin is inserted into the corresponding give way groove, it squeezes the ball, causing the ball and the corresponding component to produce friction locking, thereby fixing the shaft seat and the shaft, the transverse slide bar and the transverse slide bar sleeve, and the slide bar shaft and the longitudinal slide bar sleeve at the adjusted position at the same time.

[0007] Through the combination of rotation mechanism, transverse mechanism and longitudinal mechanism, the shield door column can be independently adjusted in three dimensions: rotation, transverse and longitudinal, overcoming the defect of the existing technology that can only be adjusted in one direction; the friction locking method of ball bearing and locking pin is adopted to fix the adjusted position at one time, avoiding the tedious operation of traditional long waist hole adjustment and improving installation efficiency; the components such as the shaft seat, slide rod sleeve, slide rod shaft adopt a nested design to reduce the occupied space and adapt to the installation environment of tunnel fixed beam.

[0008] According to one embodiment of the present invention, a first give way groove is provided on the rotating shaft, and a first locking pin is inserted into the first give way groove; a second give way groove is provided on the transverse sliding rod, and a second locking pin is inserted into the second give way groove; a third give way groove is provided on the sliding rod rotating shaft, and a third locking pin is inserted into the third give way groove.

[0009] The rotating shaft, transverse slide bar and slide bar rotating shaft are respectively provided with independent giving way slots and locking pins, so that the locking of each mechanism does not interfere with each other and the adjustment is more flexible.

[0010] According to one embodiment of the present invention, the lower portion of the rotating shaft forms a shoulder structure, and the lower outer wall has a first step surface and a second step surface connected to each other, and balls are arranged on the second step surface; the rotating shaft seat has a thrust end and a mounting edge, and the end surface of the thrust end is axially matched with the first step surface so that the second step surface forms a first clearance groove, and a first pin hole is opened on the thrust end, and the first locking pin passes through the first pin hole to contact and squeeze the balls, and a plurality of mounting holes are opened on the mounting edge.

[0011] The shoulder at the bottom of the shaft adopts a double-step surface structure. The first step surface cooperates with the thrust end of the shaft seat, and the second step surface forms a clearance groove to ensure uniform force when the shaft rotates and avoid uneven load wear.

[0012] According to one embodiment of the present invention, a second pin hole for the second locking pin to pass through is formed on the transverse sliding rod sleeve, and the second pin hole corresponds to one of the mounting holes on the mounting edge.

[0013] The second locking pin passes through the second pin hole in the transverse slide sleeve and the mounting hole of the pivot seat, securing the transverse slide to the pivot seat and preventing misalignment after individual adjustments. The pin hole alignment ensures a rigid connection between the transverse slide and the pivot seat after telescopic adjustment, preventing lateral displacement due to vibration or load.

[0014] According to one embodiment of the present invention, a second paving groove is formed on a side wall of one end of the transverse slide bar away from the longitudinal slide bar sleeve, and a third pin hole for a third locking pin to pass through is formed on the longitudinal slide bar sleeve.

[0015] The second clearance slot of the transverse slide is separated from the third pin hole of the longitudinal slide sleeve, allowing for independent locking of the transverse and longitudinal mechanisms, enhancing adjustment flexibility. The transverse slide is frictionally locked by a ball bearing in the clearance slot and a locking pin, while the longitudinal slide sleeve directly secures the slide shaft via a third locking pin, creating a dual locking mechanism that ensures overall structural stability.

[0016] According to one embodiment of the present invention, the diameter of the locking pin is comparable to that of the ball. When the locking pin is inserted into the clearance groove, it occupies the position of one ball and squeezes the adjacent ball.

[0017] The locking pin has a diameter comparable to that of the balls. When inserted, it squeezes adjacent balls to generate radial friction, achieving gapless locking and avoiding displacement caused by vibration.

[0018] According to one embodiment of the present invention, the linkage locking mechanism includes a gear wheel arranged on the rotating shaft, a rack on the transverse sliding rod, and corresponding teeth arranged on the end of the locking pin, and locking is achieved by the engagement of the teeth.

[0019] The toothed disc on the rotating shaft, the rack on the sliding rod and the corresponding locking pin teeth engage with each other to provide mechanical hard locking, making the locking more stable.

[0020] According to one embodiment of the present invention, a driving device is further included, and the driving device includes: A spiral groove 1 is provided on the rotating shaft and a guide rod 1 which can slide along the spiral groove 1; A first telescopic member connected to the guide rod 1, used for driving the transverse sliding rod sleeve to rotate; A second telescopic member connected to the longitudinal slide rod sleeve is used to drive the transverse slide rod to move transversely; The third telescopic member connected to the sliding rod rotating shaft is used to drive the sliding rod rotating shaft to move longitudinally.

[0021] According to one embodiment of the present invention, the transverse slide rod sleeve is provided with a first support and a second support, the longitudinal slide rod sleeve is provided with a third support and a fourth support, and the slide rod shaft is provided with a fifth support; The mounting end of the first telescopic member is fixedly connected to the first support, and the output end is connected to a guide rod that can slide along the spiral groove; the mounting end of the second telescopic member is connected to the second support, and the output end is connected to the third support; an arc-shaped slide groove is provided on the fourth support, and the mounting end of the third telescopic member is fixedly connected to the fifth support, and the output end is slidably connected to the arc-shaped slide groove through a sliding member.

[0022] According to one embodiment of the present invention, the matching structure of the guide rod 1 and the spiral groove 1 is configured as follows: when the first telescopic member telescopes, the linear motion is converted into the rotational motion of the transverse slide rod sleeve through the spiral groove 1; the second telescopic member is configured as follows: when its piston rod is extended, it pushes the transverse slide rod to move in a first direction, and when it is retracted, it pulls the transverse slide rod to move in the opposite direction.

[0023] The spiral groove on the rotating shaft cooperates with the guide rod to convert the linear motion of the telescopic part into rotational motion, achieving high-precision angle adjustment.

[0024] According to one embodiment of the present invention, the further embodiment includes: a fourth telescopic member that moves up and down along with the sliding rod shaft, wherein the mounting end of the fourth telescopic member is slidably disposed on a locking assembly, and the output end of the fourth telescopic member is connected to the second guide rod; The locking assembly is connected to the column connecting plate; The longitudinal sliding rod sleeve is provided with a second spiral groove, and the second guide rod slides along the second spiral groove.

[0025] According to one embodiment of the present invention, the locking assembly includes a rack box, and an oblique iron, a long rack and a movable rack located in the rack box. The rack box is arranged parallel to the longitudinal sliding rod sleeve and is connected to the column connecting plate. The oblique iron has an inclined surface, and the long rack is provided with a matching inclined surface matching the inclined surface of the oblique iron. The movable rack is connected to the sixth support and engages with the long rack. The sixth support is connected to the mounting end of the fourth telescopic member.

[0026] Beneficial effects of the present invention: (1) Through three-axis linkage adjustment and linkage locking, the multi-dimensional alignment of the shield door columns can be completed in a single operation, greatly shortening the installation time; (2) Ball and / or tooth locking mechanism to ensure there is no rebound deviation after adjustment and to meet the straightness of the screen door; (3) It is compatible with fixed beams and column position offsets of different thicknesses, solving installation problems caused by tunnel construction errors; (4) The electric drive solution provides the hardware foundation for subsequent intelligent upgrades and meets the trend of rail transit automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below with reference to the accompanying drawings and examples.

[0028] Figure 1 The present invention is a structural diagram of a top telescopic mechanism for a rail transit platform screen door in the prior art.

[0029] Figure 2 yes Figure 1 Left view of .

[0030] Figure 3 It is a structural diagram of embodiment 1 of the present invention.

[0031] Figure 4 yes Figure 3 Top view of .

[0032] Figure 5 yes Figure 3 Left view of .

[0033] Figure 6 yes Figure 3 Schematic diagram of the structure of the transfer shaft.

[0034] Figure 7 yes Figure 6 Top view of .

[0035] Figure 8 yes Figure 3 Schematic diagram of the structure of the transfer shaft seat.

[0036] Figure 9 yes Figure 8 Top view of .

[0037] Figure 10 yes Figure 3 Schematic diagram of the structure of the middle horizontal slide rod sleeve.

[0038] Figure 11 yes Figure 3 Schematic diagram of the structure of the horizontal slider.

[0039] Figure 12 yes Figure 11 Top view of .

[0040] Figure 13 yes Figure 3 Schematic diagram of the structure of the middle slide shaft.

[0041] Figure 14 It is a schematic diagram of the structure after rotation of the first embodiment of the present invention.

[0042] Figure 15 It is a structural diagram of embodiment 2 of the present invention.

[0043] Figure 16 It is a schematic diagram of the structure of the second embodiment of the present invention after rotation.

[0044] Figure 17 It is a structural diagram of embodiment 3 of the present invention.

[0045] Figure 18 yes Figure 17 Top view of .

[0046] Figure 19 yes Figure 17 Schematic diagram of the structure of the transfer shaft.

[0047] Figure 20 yes Figure 19 Top view of .

[0048] Figure 21 yes Figure 17 Schematic diagram of the structure of the horizontal slider.

[0049] Figure 22 yes Figure 17 Schematic diagram of the structure of the middle locking pin.

[0050] Figure 23 It is a schematic diagram of the structure of the third embodiment of the present invention after rotation.

[0051] Figure 24 It is a structural diagram of embodiment 4 of the present invention.

[0052] Figure 25 yes Figure 24 Top view of .

[0053] Figure 26 yes Figure 24 side view.

[0054] Figure 27 yes Figure 24 Schematic diagram of the structure of the transfer shaft.

[0055] Figure 28 yes Figure 24 Schematic diagram of the structure of the middle horizontal slide rod sleeve.

[0056] Figure 29 yes Figure 24 Schematic diagram of the structure of the horizontal slider.

[0057] Figure 30 yes Figure 29 Top view of .

[0058] Figure 31 yes Figure 24Schematic diagram of the structure of the middle guide rod 1.

[0059] Figure 32 It is a structural diagram of embodiment 5 of the present invention.

[0060] Figure 33 yes Figure 32 Top view of .

[0061] Figure 34 yes Figure 32 Schematic diagram of the structure of the middle slide shaft.

[0062] Figure 35 yes Figure 32 Schematic diagram of the structure of the middle longitudinal slide rod sleeve.

[0063] Figure 36 yes Figure 32 Schematic diagram of the structure of the locking component.

[0064] Figure 37 yes Figure 36 Schematic diagram of the structure of the middle rack box.

[0065] Figure 38 yes Figure 37 Top view of .

[0066] Figure 39 yes Figure 36 Schematic diagram of the structure of the middle oblique iron.

[0067] Figure 40 yes Figure 36 Schematic diagram of the structure of the medium and long rack.

[0068] Figure 41 yes Figure 36 Schematic diagram of the structure of the movable rack.

[0069] In the figure: 1, rotating shaft; 101, first step surface; 102, second step surface; 103, spiral groove 1; 11, fixed beam connecting plate; 111, first clearance groove; 2. Rotating shaft seat; 201. Thrust end; 202. Mounting edge; 203. First pin hole; 204. Mounting hole; 21. Horizontal slide rod sleeve; 211. Second pin hole; 221. Second locking pin; 222. First locking pin; 3. Horizontal slide rod; 301. Second clearance groove; 302. Third pin hole; 31. Longitudinal slide rod sleeve; 32. Third locking pin; 4. Slide rod rotating shaft; 401. Third clearance groove; 402. Spiral groove 2; 41. Column connecting plate; 4102. Step hole; 42. Baffle; 43. Guide rod 2; 44. Fourth telescopic member; 45. Rack box; 450. Bottom plate; 451. Pin hole 2; 452. Slide groove; 453. Guide groove; 454. Pin hole 1 ;455, bolt hole;46, oblique iron;47, long rack;48, movable rack;49, movable pin;410, fixed pin one;411, compression spring one;4100, fixed pin two;4111, compression spring two;4112, return spring;412, sixth support;413, guide plate;5, ball bearing;6, toothed disc;7, rack;8, first bolt;81, first spring;9, second bolt;91, second spring;10, guide rod one;12, first telescopic member;13, second telescopic member;14, third telescopic member;15, first support;16, second support;17, third support;18, fourth support;181, arc-shaped slide groove;19, fifth support. DETAILED DESCRIPTION

[0070] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0071] Example 1 like Figures 3 to 5As shown, a top rotating telescopic connection device includes a rotating mechanism, a transverse mechanism, a longitudinal mechanism and a linkage locking mechanism. The rotating mechanism includes a fixed beam connecting plate 11 connected to the crossbeam and a rotating shaft 1 installed at the end of the fixed beam connecting plate 11. The lower part of the rotating shaft 1 is provided with a rotating shaft seat 2, and the bottom of the rotating shaft seat 2 is connected to a transverse sliding rod sleeve 21; the transverse mechanism includes a transverse sliding rod 3 extending into the transverse sliding rod sleeve 21, and the end of the transverse sliding rod 3 extending out of the transverse sliding rod sleeve 21 has a longitudinal sliding rod sleeve 31; the longitudinal mechanism includes a sliding rod rotating shaft 4 installed in the longitudinal sliding rod sleeve 31 and a position The column connecting plate 41 at the bottom of the slide shaft 4 is connected to the column of the shield door; the linkage locking mechanism includes a clearance groove set on the shaft 1, the transverse slide bar 3 and the slide shaft 4, a plurality of balls 5 set in each clearance groove, and a locking pin that can be rotatably inserted into the corresponding clearance groove; wherein, when the locking pin is inserted into the corresponding clearance groove, the ball 5 is squeezed, so that the ball 5 and the corresponding component are frictionally locked, thereby fixing the shaft seat 2 and the shaft 1, the transverse slide bar 3 and the transverse slide bar sleeve 21, and the slide shaft 4 and the longitudinal slide bar sleeve 31 at the adjusted position at the same time.

[0072] like Figure 6 and Figure 7 As shown, the lower part of the shaft 1 is a shoulder structure, and a first clearance groove 111 is provided on the shoulder structure to form a first step surface 101 and a second step surface 102 connected to each other on the shoulder structure, and the ball 5 is located on the second step surface 102. Figure 8 and Figure 9 As shown, the shaft seat 2 has a thrust end 201 and a mounting edge 202. The end face of the thrust end 201 is axially matched with the first step surface 101. A first pin hole 203 is provided on the thrust end 201. A first locking pin 222 is inserted into the first pin hole 203. The first locking pin 222 contacts and squeezes the ball 5. A plurality of mounting holes 204 are provided on the mounting edge 202.

[0073] Specifically, the first step surface 101 cooperates with the thrust end 201 of the rotating shaft seat 2 to bear the axial load, while the second step surface 102 is used to accommodate the balls 5 and the locking pin to achieve radial locking, separating the force directions and preventing interference between the axial and radial loads during rotation. The balls 5 are arranged on the second step surface 102 and, after being squeezed by the locking pin, generate radial friction, enabling gapless fine-tuning. This overcomes the thread clearance problem of traditional bolt locking and is suitable for the high-precision alignment requirements of shielded doors. The shoulder structure integrates a clearance groove and step surface, eliminating additional locking parts and simplifying the assembly process. Furthermore, the first step surface 101 can withstand axial vibration, while the second step surface 102, through friction with the balls 5, can suppress radial movement.

[0074] like Figure 10As shown, the transverse slide bar sleeve 21 is provided with a second pin hole 211, into which a second locking pin 221 is inserted. The second pin hole 211 corresponds to one of the mounting holes 204 on the mounting edge 202. In other words, the second locking pin 221 penetrates both the transverse slide bar sleeve 21 and the mounting hole 204, thereby achieving a rigid connection between the transverse slide bar 3 and the rotating shaft seat 2, preventing lateral displacement.

[0075] like Figure 11 and Figure 12 As shown, a second clearance groove 301 is defined on the sidewall of the end of the transverse slide bar 3, away from the longitudinal slide bar sleeve 31. A third pin hole 302 is defined on the longitudinal slide bar sleeve 31, into which a third locking pin 32 is inserted. In other words, the transverse slide bar 3 achieves frictional locking of the ball 5 via the second clearance groove 301, while the longitudinal slide bar sleeve 31 is secured by the third locking pin 32. This allows for independent lateral and longitudinal adjustment, enhancing operational flexibility. The second clearance groove 301 of the transverse slide bar 3 is positioned near the end sidewall, while the third pin hole 302 of the longitudinal slide bar sleeve 31 is positioned to the side to prevent interference with the movement of the mechanism.

[0076] like Figure 13 As shown, a third clearance groove 401 is defined in the sidewall of the slide shaft 4. A baffle 42 is located at the top of the slide shaft 4 to limit the axial movement of the longitudinal slide sleeve 31. Specifically, the baffle 42 contacts the end surface of the longitudinal slide sleeve 31, completely eliminating axial movement of the slide shaft 4 and ensuring the verticality of the screen door column. The third clearance groove 401 engages with a locking pin to radially lock the slide shaft 4, and together with the baffle 42, provides a three-dimensional fixation for the axial position.

[0077] like Figure 14 As shown, when the column connecting plate 41 is pulled, the shaft seat 2 and the transverse slide 3 rotate, and the column connecting plate 41 can move up and down and rotate relative to the longitudinal slide sleeve 31, so that the mounting hole of the column connecting plate 41 can be kept aligned with the mounting hole of the shield door column, and the mounting bolts are installed; one ball 5 is installed at each of the three locking pins, and the diameter of the locking pin is equivalent to the diameter of the ball 5. Then the locking pin is rotated and locked, and the locking pin is inserted into the ball 5. The ball 5 is squeezed to both sides under the insertion of the locking pin. The position of the ball 5 and the locking pin in the clearance groove is fixed by squeezing, thereby limiting the movement of the entire top rotary telescopic connection device and facilitating installation and fixation. The missing ball 5 forms an adjustment gap to ensure the free movement of each component. The locking pin is inserted into the vacant position of the ball 5, and a radial extrusion force is generated by the equal diameter design. The ball 5 rolls and rubs in the clearance groove to ensure a smooth adjustment process. The locking pin has a diameter comparable to that of the balls 5 , and when inserted, it squeezes the adjacent balls 5 to generate radial friction, thereby achieving gapless locking and avoiding displacement caused by vibration.

[0078] Example 2 like Figure 15As shown, the difference from the first embodiment is that the balls 5 in the three clearance grooves are fully filled and no gaps are left. Figure 16 As shown, when the column connecting plate 41 is pulled, the shaft seat 2 and the transverse slide 3 rotate, while the column connecting plate 41 can move up and down and rotate relative to the longitudinal slide sleeve 31. This ensures that the mounting holes of the column connecting plate 41 are aligned with the mounting holes of the shield door columns. The mounting bolts are then installed, and the locking pin is rotated and locked. The locking pin inserts into the gaps between the balls 5, squeezing the balls 5 tightly, thereby limiting the movement of the entire top rotary telescopic connection device and facilitating installation and fixation. The balls 5 are arranged at 100% density within each clearance groove. When the locking pin is inserted, a radial pressure gradient is generated, forming a multi-stage wedge effect, achieving uniform force distribution around the entire circumference.

[0079] Example 3 The difference from the first embodiment is that: Figures 17 to 22 As shown, two first clearance grooves 111 are positioned opposite each other on the shoulder structure of the rotating shaft 1. A toothed disc 6 is positioned within the first clearance grooves 111 corresponding to the first locking pin 222. The outer wall of the transverse slide bar 3 has an opposing second clearance groove 301. A rack 7 is positioned within the second clearance groove 301 near the rotating shaft seat 2. Corresponding teeth are positioned at the ends of the first and second locking pins 222 and 221, meshing with the teeth of both the toothed disc 6 and the rack 7. The first locking pin 222, first spring 81, and first bolt 8 are sequentially inserted into the first pin hole 203; correspondingly, the second locking pin 221, second spring 91, and second bolt 9 are sequentially inserted into the second pin hole 211.

[0080] like Figure 23 As shown, when the column connecting plate 41 is pulled, the shaft seat 2 and the transverse slide bar 3 rotate, and the column connecting plate 41 can move up and down and rotate relative to the longitudinal slide bar sleeve 31, so that the mounting hole of the column connecting plate 41 can be kept aligned with the mounting hole of the shield door column, and the mounting bolts are put on, and then the first bolt 8 and the second bolt 9 are rotated to squeeze the first locking pin 222 and the second locking pin 221 downward respectively. The teeth of the two are respectively engaged with the teeth of the gear plate 6 and the rack 7 and locked, and the ball 5 is used to reduce the friction coefficient between the shaft 1 and the shaft seat 2, between the transverse slide bar sleeve 21 and the transverse slide bar 3, and between the slide shaft 4 and the longitudinal slide bar sleeve 31. The first locking pin 222 realizes circumferential angle locking, the second locking pin 221 controls axial displacement, the tooth engagement structure bears the main load, and the spring preload eliminates the transmission gap; and the mechanical tooth engagement is used as the primary locking, and the spring preload is used as the secondary locking. Through the triple locking mechanism of gear-rack-elastic preload, the shield door installation device has achieved a technological leap from adjustable to ultra-precision maintenance.

[0081] Example 4 The difference from the first embodiment is that: Figures 24 to 26As shown, the apparatus further includes a drive device, which includes: a spiral groove 103 provided on the rotating shaft 1, a guide rod 10 that can slide along the spiral groove 103, a first telescopic member 12 connected to the guide rod 10, for driving the rotation of the transverse sliding rod sleeve 21; a second telescopic member 13 connected to the transverse sliding rod 3, for driving the transverse sliding rod 3 to move laterally; and a third telescopic member 14 connected to the sliding rod rotating shaft 4, for driving the longitudinal movement of the sliding rod rotating shaft 4. The first telescopic member 12, the second telescopic member 13, and the third telescopic member 14 are each selected from the group consisting of an electric push rod, a hydraulic cylinder, and a pneumatic cylinder.

[0082] like Figure 27 As shown, a spiral groove 103 is provided on the rotating shaft 1. Figure 28 As shown, the transverse slide rod sleeve 21 is provided with a first support 15 and a second support 16. Figure 29 and Figure 30 As shown, the longitudinal slide rod sleeve 31 is provided with a third support 17 and a fourth support 18, and the slide rod shaft 4 is provided with a fifth support 19. Figure 23 The mounting end of the first telescopic member 12 is fixedly connected to the first support 15, and the output end is connected to a guide rod 10 (such as Figure 31 As shown); the mounting end of the second telescopic member 13 is connected to the second support 16, and the output end is connected to the third support 17; an arc-shaped slide groove 181 is provided on the fourth support 18, the mounting end of the third telescopic member 14 is fixedly connected to the fifth support 19, and the output end is slidably connected in the arc-shaped slide groove 181 through a sliding member. Specifically, the matching structure of the guide rod 10 and the spiral groove 103 is configured so that when the first telescopic member 12 telescopes, the linear motion is converted into the rotational motion of the transverse slide rod sleeve 21 through the spiral groove 103. The second telescopic member 13 is configured so that when its piston rod is extended, it pushes the transverse slide rod 3 to move in a first direction, and when it is retracted, it pulls the transverse slide rod 3 to move in the opposite direction.

[0083] The first telescopic member 12 converts the linear motion into the rotation of the transverse slide rod sleeve 21 through the spiral groove 103, the second telescopic member 13 directly drives the transverse slide rod 3 to extend and retract, and the third telescopic member 14 guides the slide rod shaft 4 to rise and fall through the arc-shaped slide groove 181, realizing one-button three-axis synchronous adjustment.

[0084] Preferably, the curvature of the arc-shaped sliding groove 181 matches the rotation angle range of the sliding rod shaft 4, so that the third telescopic member 14 can rotate with the sliding rod shaft 4 within a predetermined angle range.

[0085] When the first telescopic member 12 is expanded or contracted, the longitudinal travel of the spiral groove 103 balances part of the longitudinal torque of the first telescopic member 12. Meanwhile, the remaining torque is converted into torque under the guidance of the spiral groove 103, which drives the synchronous rotation of the transverse slide rod sleeve 21. When the piston rod of the second telescopic member 13 moves forward, the slide rod shaft 4 moves backward, and vice versa. When the piston rod of the third telescopic member 14 moves upward, the slide rod shaft 4 moves downward, and vice versa. When the column connecting plate 41 is adjusted to the shield door column connecting plate, the column connecting plate 41 can be rotated to align the bolt hole, connect with the shield door column, and lock the locking pin. This embodiment adopts the method of providing a mounting base to electrify the adjustment process, which not only saves manpower and material resources but also provides an Internet of Things foundation for subsequent automated control.

[0086] Example 5 The difference from the first embodiment is that: Figures 32 and 33 As shown, on the basis of the fourth embodiment, a fourth telescopic member 44 and a locking assembly are added, the locking assembly is connected to the column connecting plate 41, the mounting end of the fourth telescopic member 44 is slidably set on the locking assembly, and its output end is connected to the guide rod 2 43; Figure 34 As shown, a step hole 4102 is provided on the column connecting plate 41 below the slide shaft 4; Figure 35 As shown, a second spiral groove 402 is formed on the longitudinal slide rod sleeve 31 , and the second guide rod 43 slides along the second spiral groove 402 .

[0087] like Figure 36 As shown, the locking assembly includes a rack box 45, and an inclined iron 46, a long rack 47 and a movable rack 48 located in the rack box 45, as shown in FIG. Figure 37 and Figure 38 As shown, the rack box 45 includes a cover and a base plate 450. The base plate 450 is provided with a pin hole 454 and a bolt hole 455. The side wall of the cover is provided with a slide groove 452. The upper and lower parts of the slide groove 452 are provided with pin holes 451. The rack box 45 is connected to the column connecting plate 41 by bolts passing through the bolt holes 455. A guide groove 453 is also provided in the rack box 45. Figures 39 to 41 As shown, the cross section of the inclined iron 46 is a right triangle, the long rack 47 is provided with a matching inclined surface that matches the inclined surface of the inclined iron 46, the movable rack 48 is sequentially connected to the guide plate 413 and the sixth support 412, the movable rack 48 is engaged with the long rack 47, the guide plate 413 is matched with the guide groove 453, and the guide rod 43 will not rotate in the spiral groove 402, nor will it move up and down with the column connecting plate 41. Figure 36The upper end of the long rack 47 is fixed to the rack box 45 by a fixing pin 410 passing through the pin hole 451 above the slide groove 452, and the lower end of the long rack 47 is fixed to the rack box 45 by a fixing pin 4100 passing through the pin hole 451 below the slide groove 452. A compression spring 411 is sleeved on the fixing pin 410, and a compression spring 4111 is sleeved on the fixing pin 4100. The fixing pin 410 and the fixing pin 4100 are used to limit the moving direction of the long rack 47, and can only move horizontally. A movable pin 49 is inserted into pin hole 1 454 of base plate 450 and extends into stepped hole 4102. A return spring 4112 is sleeved around movable pin 49, which keeps it extended from column connecting plate 41. When movable pin 49 contacts column connecting plate 41, it is compressed back, compressing return spring 4112 and pushing inclined iron 46 upward. Its inclined surface pushes long rack 47 horizontally to engage movable rack 48, thereby securing sixth support 412. The mounting end of fourth telescopic member 44 is connected to sixth support 412, thereby securing the lower end of fourth telescopic member 44.

[0088] When the piston rod of the first telescopic member 12 moves upward, it drives the guide rod 10 to move upward and rotate along the spiral groove 103, thereby driving the horizontal slide rod sleeve 21 to rotate left. Conversely, when the piston rod of the first telescopic member 12 moves downward, the horizontal slide rod sleeve 21 rotates right. When the piston rod of the second telescopic member 13 moves forward, the slide rod shaft 4 moves backward. Conversely, the slide rod shaft 4 moves forward. When the piston rod of the third telescopic member 14 moves upward, the slide rod shaft 4 moves downward and drives the guide rod 10 to move upward and rotate along the spiral groove 103. The second rod 43, the fourth telescopic member 44, and the sixth support 412 move downward (their movement is limited by the piston rod travel of the third telescopic member 14, and there is no interference between the second guide rod 43 and the longitudinal slide rod sleeve 31). Conversely, the slide rod shaft 4 moves upward. When the column connecting plate 41 is adjusted to contact the shield door column connecting plate, it activates the movable pin 49, which pushes the inclined iron 46, compresses the long rack 47, and engages the movable rack 48, preventing the sixth support 412 from sliding up and down. At this time, the piston rod of the fourth telescopic member 44 can be driven up and down, driving the second guide rod 43 up and down. Since the second guide rod 43 can only move along the second spiral groove 402, the rotational force generated by the second guide rod 43 in the second spiral groove 402 drives the column connecting plate 41 to rotate in the opposite direction to align with the bolt hole, connecting with the shield door column and locking the locking pin.

[0089] Example 5 builds on the electric drive three-axis adjustment of Example 4 by further adding a fourth telescopic member 44 and a locking assembly, achieving the combined functions of automatic adjustment, intelligent locking, and rotational fine-tuning, making the shield door installation process more automated, precise, and reliable. The first telescopic member 12, the second telescopic member 13, and the third telescopic member 14 work in conjunction to adjust the angle, width, and height of the shield door. The fourth telescopic member 44 is on standby, and the locking assembly is in a free state. When the column connecting plate 41 contacts the shield door column, the movable pin 49 is triggered, and the inclined iron 46 pushes the long rack 47 to engage with the movable rack 48, automatically locking the sixth support 412. The fourth telescopic member 44 is activated, sliding through the guide rod 2 43 and the spiral groove 2 402, driving the column connecting plate 41 to rotate, precisely aligning the bolt holes, and inserting the locking pin to complete the final fixation.

[0090] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A top rotating telescopic connection device, characterized in that: include: The rotating mechanism comprises a fixed beam connecting plate (11) connected to the crossbeam and a rotating shaft (1) mounted on the end of the fixed beam connecting plate (11), a rotating shaft seat (2) being sleeved on the lower portion of the rotating shaft (1), and a transverse sliding rod sleeve (21) being connected to the bottom of the rotating shaft seat (2); A transverse mechanism comprises a transverse slide bar (3) extending into a transverse slide bar sleeve (21), wherein one end of the transverse slide bar (3) extending out of the transverse slide bar sleeve (21) is provided with a longitudinal slide bar sleeve (31); A longitudinal mechanism comprising a slide rod shaft (4) installed in the longitudinal slide rod sleeve (31) and a column connecting plate (41) located at the bottom of the slide rod shaft (4), wherein the column connecting plate (41) is connected to the column of the shielding door; A linkage locking mechanism comprises a clearance groove provided on a rotating shaft (1), a transverse slide bar (3) and a slide bar rotating shaft (4), a plurality of balls (5) provided in each clearance groove, and a locking pin rotatably inserted into the corresponding clearance groove; When the locking pin is inserted into the corresponding clearance groove, the ball (5) is squeezed, so that the ball (5) and the corresponding component are frictionally locked, thereby simultaneously fixing the rotating shaft seat (2) and the rotating shaft (1), the transverse slide bar (3) and the transverse slide bar sleeve (21), and the slide bar rotating shaft (4) and the longitudinal slide bar sleeve (31) at the adjusted positions.

2. The top rotating and telescopic connection device according to claim 1, characterized in that: The rotating shaft (1) is provided with a first paving groove (111), and the first paving groove (111) is provided with a first locking pin (222) inserted therein; the transverse sliding bar (3) is provided with a second paving groove (301), and the second paving groove (301) is provided with a second locking pin (221) inserted therein; the sliding bar rotating shaft (4) is provided with a third paving groove (401), and the third paving groove (401) is provided with a third locking pin (32) inserted therein.

3. The top rotating and telescopic connection device according to claim 2, characterized in that: The lower portion of the rotating shaft (1) forms a shaft shoulder structure, and the lower outer wall has a first step surface (101) and a second step surface (102) connected to each other, and balls (5) are arranged on the second step surface (102); The rotating shaft seat (2) has a thrust end (201) and a mounting edge (202), the end surface of the thrust end (201) is axially matched with the first step surface (101) so that the second step surface (102) forms a first clearance groove (111), the thrust end (201) is provided with a first pin hole (203), the first locking pin (222) passes through the first pin hole (203) to contact and squeeze the ball (5), and the mounting edge (202) is provided with a plurality of mounting holes (204).

4. The top rotating and telescopic connection device according to claim 3, characterized in that: A second pin hole (211) for a second locking pin (221) to pass through is provided on the transverse sliding rod sleeve (21), and the second pin hole (211) corresponds to one of the mounting holes (204) on the mounting edge (202).

5. The top rotating and telescopic connection device according to claim 2, characterized in that: A second paving groove (301) is provided on a side wall of one end of the transverse slide bar (3) away from the longitudinal slide bar sleeve (31), and a third pin hole (302) for a third locking pin (32) to pass through is provided on the longitudinal slide bar sleeve (31).

6. The top rotating and telescopic connection device according to claim 1, characterized in that: The diameter of the locking pin is comparable to the diameter of the ball. When the locking pin is inserted into the clearance groove, it occupies the position of one ball (5) and squeezes the adjacent ball (5).

7. The top rotating and telescopic connection device according to claim 1, characterized in that: The linkage locking mechanism comprises a toothed disc (6) arranged on the rotating shaft (1), a rack (7) on the transverse slide bar (3), and corresponding teeth arranged at the end of the locking pin, and locking is achieved through the meshing of the teeth.

8. The top rotating and telescopic connection device according to claim 1, characterized in that: Also included is a driving device, the driving device comprising: A spiral groove (103) provided on the rotating shaft (1) and a guide rod (10) capable of sliding along the spiral groove (103); A first telescopic member (12) connected to the guide rod 1 (10) is used to drive the transverse sliding rod sleeve (21) to rotate; A second telescopic member (13) connected to the longitudinal slide rod sleeve (31) is used to drive the transverse slide rod (3) to move transversely; The third telescopic member (14) connected to the slide rod rotating shaft (4) is used to drive the slide rod rotating shaft (4) to move longitudinally.

9. The top rotating and telescopic connection device according to claim 8, characterized in that: The transverse slide rod sleeve (21) is provided with a first support (15) and a second support (16), the longitudinal slide rod sleeve (31) is provided with a third support (17) and a fourth support (18), and the slide rod shaft (4) is provided with a fifth support (19); The mounting end of the first telescopic member (12) is fixedly connected to the first support (15), and the output end is connected to the guide rod (10) that can slide along the spiral groove (103); the mounting end of the second telescopic member (13) is connected to the second support (16), and the output end is connected to the third support (17); the fourth support (18) is provided with an arc-shaped slide groove (181), the mounting end of the third telescopic member (14) is fixedly connected to the fifth support (19), and the output end is slidably connected to the arc-shaped slide groove (181) through a sliding member.

10. The top rotating and telescopic connection device according to claim 8, characterized in that: The matching structure of the guide rod 1 (10) and the spiral groove 1 (103) is configured such that when the first telescopic member (12) telescopes, the linear motion is converted into the rotational motion of the transverse sliding rod sleeve (21) through the spiral groove 1 (103); The second telescopic member (13) is configured to push the transverse slide bar (3) to move in a first direction when its piston rod is extended, and to pull the transverse slide bar (3) to move in the opposite direction when it is retracted.

11. The top rotation and telescopic connection device according to claim 8, characterized in that: Also includes: a fourth telescopic member (44) that moves up and down along with the sliding rod rotating shaft (4), wherein the mounting end of the fourth telescopic member (44) is slidably disposed on a locking assembly, and the output end thereof is connected to the second guide rod (43); The locking assembly is connected to the column connecting plate (41); The longitudinal slide rod sleeve (31) is provided with a second spiral groove (402), and the second guide rod (43) slides along the second spiral groove (402).

12. The top rotating and telescopic connection device according to claim 8, characterized in that: The locking assembly includes a rack box (45), an oblique iron (46), a long rack (47) and a movable rack (48) located in the rack box (45), the rack box (45) is arranged parallel to the longitudinal slide rod sleeve (31), and is connected to the column connecting plate (41), the oblique iron (46) has an inclined surface, and the long rack (47) is provided with a matching inclined surface matching the inclined surface of the oblique iron (46), the movable rack (48) is connected to the sixth support (412) and meshed with the long rack (47), and the sixth support (412) is connected to the mounting end of the fourth telescopic member (44).

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