Rotary door device for electrically driving opening and closing of a door

Abstract

The application discloses a rotating door device driven by electricity to open and close the door, which comprises a rotating door rotatingly matched with a door frame around the axis of the hinge shaft, a housing end of an electric linear driving structure hinged to the door frame, a free end of a driving rod of the electric linear driving structure hinged to a sliding block, the sliding block slidingly matched with a sliding rail in one end of a guide box fixed to the rotating door away from the housing end, and a space on the guide box for the free end of the driving rod to rotate around the hinge shaft; and further comprises a lock catch lever such as an L-shaped lever capable of being driven by the sliding block hinged to the free end of the driving rod to be inserted into a door catch groove fixed to the door frame or retracted to be pressed out by a spring to be unlocked, a part of the horizontal rod of the L-shaped lever slidingly matched with the guide box, and another part of the horizontal rod outside the other end of the guide box fixed with a vertical rod for locking or unlocking. The rotating door device has simple structure and can lock or unlock the door by the electric linear driving structure once.

Description

Technical Field

[0001] This invention relates to the field of electric drive door technology, specifically to an electric drive revolving door device for opening and closing doors. Background Technology

[0002] With the widespread promotion and application of electric drive devices or electric drive structures, many revolving doors that require manual control to open and close, such as community gates for people to enter and exit, and poultry cage doors and livestock cage doors for people to raise poultry and livestock, have been equipped with electric drive structures. These doors are controlled by a dedicated person via a power switch, such as a remote control power switch or a wired power switch.

[0003] Existing electrically driven revolving door mechanisms for opening and closing are diverse in type and structure. However, they still have the following shortcomings:

[0004] Many doors rely solely on electric push rods to open or close, meaning they depend solely on the self-locking force of the electric push rods to keep the door closed. This results in either the door being easily pushed open by a large impact force or the electric push rod being damaged, or the push rod needing a very large self-locking force, which multiplies the motor power. This increases the cost of the drive device itself, and the increased size also makes the installation of the drive device more difficult or increases the cost of the door itself.

[0005] Some devices use an electric drive structure that can unlock the door latch first and then drive the door to open around its own hinge axis, or drive the door to close around its own hinge axis first and then lock the door latch. However, they generally require an electric push rod combined with gear drive or linkage drive. Their structure is complex, and the flexibility, reliability, stability and robustness of unlocking and locking the door are still lacking. In addition, the cost of the device and the cost of using it are still relatively high. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide an electrically driven door opening and closing device that is simple in structure and can lock or unlock the door in one go through an electric linear drive structure.

[0007] The technical solution of the present invention is to provide an electrically driven revolving door device for opening and closing, comprising a revolving door rotatably fitted on a door frame about its own hinge axis, a housing end of an electric linear drive structure hinged to the door frame, a free end of a drive rod of the electric linear drive structure hinged to a slider, the slider slidingly fitted on a slide rail inside a guide box fixed to one end of the revolving door away from the housing end, the guide box having space for the free end of the drive rod to rotate about the hinge axis; and a latch rod that can be driven by the slider hinged to the free end of the drive rod to insert into a latch groove of a latch seat fixed to the door frame or to be released by a spring when the drive rod retracts.

[0008] With the above structure, the electrically driven revolving door device for opening and closing of the present invention has the following advantages:

[0009] When it is necessary to unlock and open the revolving door, the operator uses a remote control switch or a wired button switch to turn on the power. The electric linear drive structure, or electric linear drive device, such as the telescopic rod of the electric push rod, drives the slider to retract. The spring naturally extends and moves the locking rod laterally away from the locking groove to unlock, completing the first stage of the stroke, thus unlocking. The electric linear drive structure, such as the telescopic rod of the electric push rod, drives the slider to continue to retract. Through the hinge point with the slider, such as the first hinge shaft described below, it drives the guide box fixed on the revolving door and pulls the revolving door open, completing the second stage of the stroke, thus opening the door.

[0010] When the revolving door and latch need to be closed, the operator uses a remote control switch or a wired push button switch to turn on the power. The telescopic rod of the electric linear drive structure, such as the electric push rod, drives the slider to extend. Through the hinge point with the slider, as described below, the first hinge shaft pushes the guide box fixed on the revolving door, thereby pushing the revolving door to close, completing the first stage of the stroke, i.e., closing the door. The telescopic rod drives the slider to continue to extend. The slider hinged to the free end of the telescopic rod drives the latch rod to move laterally into the latch groove and insert to lock, completing the second stage of the stroke, i.e., locking.

[0011] This revolving door device, thanks to the latch at the top of the L-shaped vertical rod, prevents large impact forces from pushing the door open or damaging linear drive structures such as electric push rods. Its latch structure is robust and reliable. Simultaneously, by relatively reducing the self-locking force of the push rod, it can relatively reduce motor power, thus saving on the cost of the revolving door device.

[0012] This electrically driven revolving door device only requires a linear drive structure, such as an electric push rod, to independently drive the revolving door. Closing the door is achieved by a continuous first and second stroke, and opening the door is achieved by a continuous first and second stroke, which unlocks the door. In other words, the linear drive structure, such as an electric push rod, can lock or unlock the door in one go. It is convenient and quick to operate, has a simple structure, and significantly improves the flexibility, reliability, stability, and robustness of the door lock and unlock mechanism. Moreover, the cost of the revolving door device and its operation are relatively economical.

[0013] Furthermore, the slide rail consists of two parallel vertical plates located near the housing end of the guide box. The bottom end of the slider is slidably fitted within the two vertical plates. The side walls of the elongated notch in the guide box cover, which allows the free end of the drive rod to rotate around the hinge axis, serve as limiting walls to prevent the slider from disengaging from the slide rail upwards. The slider includes an L-shaped block, with the outer surface of the first vertical block of the L-shaped block serving as the working surface of the slider. Two upward-facing second vertical blocks are located on either side of the horizontal block of the L-shaped block, each with a hinge hole. The connecting block at the free end of the drive rod has a hinge hole coaxial with the hinge holes of the two second vertical blocks. A first hinge axis rotatably engages within the hinge holes on the two second vertical blocks and the connecting block, providing axial limitation. With this structure, the rotational engagement between the free end of the drive rod and the slider, as well as the sliding engagement between the slider and the guide box, in the electric linear drive structure are more flexible, reliable, and stable. This further ensures the convenient and quick operation, simple structure, and flexible, reliable, stable, and robust locking and unlocking of the electric drive door opening and closing device.

[0014] Furthermore, the latch rod is L-shaped, with a portion of the horizontal bar slidingly fitted inside the guide box, and the other portion of the horizontal bar outside the other end of the L-shaped rod is fixed to the vertical bar used for locking or unlocking. With this specific structure, the installation space for the door latch seat is relatively larger, and locking and unlocking the latch rod is relatively convenient.

[0015] Furthermore, the crossbar of the L-shaped rod slides within the first circular hole formed by the vertical partition of the guide box and the vertical pressure plate of the box cover, and the second circular hole formed by the end plate away from the drive rod and the end pressure plate of the box cover. A spring pressure plate is fitted and fixed to the crossbar of the L-shaped rod inside the guide box through a through hole. A spring is movably fitted onto the crossbar of the L-shaped rod inside the guide box, with its two ends abutting against the vertical partition and the end plate away from the drive rod, respectively. With the above structure, the crossbar of the L-shaped rod, the spring, and the guide box cooperate more flexibly, reliably, and stably, further ensuring the technical effects of convenient and quick opening and closing operation of the revolving door device, simple structure, and flexible, reliable, stable, and secure unlocking and closing latches.

[0016] Furthermore, the structure of the door latch slot fixed to the door frame is as follows: a door latch is fixed on the door frame on the upper left side of the revolving door, away from the hinge axis. The bottom end of the door latch has a latch block with a vertical inner surface. The vertical surface of the latch block and the vertical surface of the door frame form a door latch slot for the top of the vertical rod of the L-shaped rod to be inserted horizontally for locking or to be released horizontally for unlocking. With this structure, the door latch and door latch slot are simple, robust, reliable, and stable, further ensuring the revolving door device offers convenient and quick opening and closing operations, a simple structure, and flexible, reliable, stable, and robust unlocking and closing latches.

[0017] Furthermore, the electric linear drive structure is an electric push rod. The tail end of the electric push rod's housing is hinged to a fixed seat fixed on the door frame via a hinge block and a second hinge shaft. The free end of the electric push rod's telescopic rod is hinged to a slider. With the above structure, the electric linear drive device is preferably an electric push rod. Compared to cylinders and electro-hydraulic push rods, it has greater versatility, a relatively smaller size, and is relatively cost-effective. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the rotating door device of the present invention in the closed state. Figure 1 (Screws are not shown in the diagram, and the same applies to the remaining diagrams below).

[0019] Figure 2 yes Figure 1 A schematic diagram of the structure of the box lid bursting open (to save space, the box lid is shown as a 180° flipped diagram showing the inner structure).

[0020] Figure 3 yes Figure 2 A magnified structural diagram of A in the diagram.

[0021] Figure 4 This is a schematic diagram of the structure of the rotating door device of the present invention in the closed state. Figure 2 .

[0022] Figure 5 yes Figure 4 A magnified structural diagram of B in the diagram.

[0023] Figure 6 This is a schematic diagram of the structure of the rotating door device of the present invention in the open state with the cover omitted (although the rotating door is still in the closed state in the figure for the sake of intuitiveness, the drive structure shows the state of unlocking and opening the door).

[0024] Figure 7 yes Figure 6 A magnified structural diagram of C.

[0025] As shown in the figure:

[0026] 1. Door frame; 11. Door latch seat; 111. Door latch groove; 112. Snap block; 12. Fixing seat;

[0027] 2. Revolving door;

[0028] 3. Door hinges;

[0029] 4. Slider; 41. First hinge; 42. L-shaped block; 421. First vertical block; 43. Second vertical block;

[0030] 5. Guide box; 51. Compression spring; 52. Two parallel vertical plates; 53. Box cover; 531. Long notch; 5311. Two side walls of the long notch; 532. Vertical pressure plate; 5321. Semicircular notch of the vertical pressure plate; 533. Left vertical pressure plate; 5321. Semicircular notch of the left vertical pressure plate; 54. Right end plate; 541. Arc-shaped notch; 55. Spring receiving cavity; 56. Vertical partition; 561. Semicircular notch of the partition; 57. Left end plate; 571. Semicircular notch of the left end plate;

[0031] 6. L-shaped bar; 61. Horizontal bar; 611. Spring pressure plate; 62. Vertical bar;

[0032] 7. Electric push rod; 71. Housing; 72. Telescopic rod; 73. Connecting block; 74. Hinge block; 75. Second hinge shaft. Detailed Implementation

[0033] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions of specific embodiments are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various specific embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown.

[0035] This invention relates to an electrically driven revolving door device for opening and closing, comprising a revolving door 2 rotatably fitted onto a door frame 1 about its own hinge axis. The hinge axis can be a commercially available door hinge 3, with two hinges of the door hinge 3 rotating about its own hinge axis. The door hinge 3 is shown in the figure as a door hinge 3 installed on the upper part of the door frame 1 and the revolving door 2, and a door hinge 3 installed on the lower part of the door frame 1 and the revolving door 2.

[0036] like Figure 1 , Figure 3 , Figure 5 As shown, the housing end of an electric linear drive structure, or electric linear drive device, is hinged to the door frame 1. The free end of the drive rod of the electric linear drive structure is hinged to a slider 4. The slider 4 is slidably engaged with one end of a guide box 5 fixed to the rotating door 2 away from the housing end. Figure 3 On the right end of the slide rail, the guide box 5 has space for the free end of the drive rod to rotate around the hinge axis. To put this another way: the guide box on the revolving door is located away from the end of the housing 71 of the electric linear drive structure, such as the electric push rod 7. Figure 3The left end, or upper left side, of the revolving door 2, is the upper left side, while the slide rail is located at... Figure 3 The right end of the guide box 5. The electric drive device for opening and closing the rotating door of the present invention also includes a latch rod that can be driven by a slider 4 hinged to the free end of the drive rod to insert into the latch groove 111 of the latch seat 11 fixed to the door frame 1, or to be pressed out by the spring 51 to release the latch when the drive rod retracts. The latch rod is preferably an L-shaped rod 6, and part of the crossbar 61 of the L-shaped rod 6 slides within the guide box 5. The other end of the L-shaped rod 6 is located in the guide box 5. Figure 3 Another part of the circular crossbar 61 on the left side is fixed to the circular vertical bar 62 for locking or unlocking.

[0037] like Figure 1 , Figure 2 , Figure 3 As shown, the free end of the drive rod of the electric linear drive structure described above is hinged to a slider 4. The slider 4 is slidably fitted onto one end of the guide box 5, which is fixed to the rotating door 2 away from the housing end. Figure 3 The guide box 5 has a space on the slide rail at the right end of the guide box 5 for the free end of the drive rod to rotate around the hinge axis. The specific structure can be as follows: the slide rail consists of two parallel vertical plates 52 located near the housing end of the guide box 5, such as the housing 71 of the electric push rod 7. The bottom end of the slider 4 slides within the two parallel vertical plates 52. The side walls 5311 of the elongated notch on the cover 53 of the guide box 5, which allows the free end of the drive rod (such as the telescopic rod 72 of the electric push rod 7) to rotate around the hinge axis (such as the first hinge axis 41), act as limiting walls to prevent the slider 4 from disengaging from the slide rail, i.e., from disengaging from the two parallel vertical plates 52. In other words, this end of the cover 53 has an elongated notch 531, or elongated opening, allowing the free end of the drive rod (such as the telescopic rod 72 of the electric push rod 7) to rotate around the hinge axis (such as the first hinge axis 41) without being constrained by the cover, thus opening the rotating door 2. However, the side walls 5311 of the elongated notch restrict the slider 4 from disengaging from the slide rail. The end plate of this end of the guide box 5 is as follows: Figure 3 The top of the right end plate 54 has an arc-shaped notch 541 at the bottom of the circular drive rod, such as the telescopic rod 72 of the electric push rod 7. The slider 4 includes an L-shaped block 42. The outer surface of the first vertical block 421 of the L-shaped plate 42 is the working surface of the slider 4, that is, the surface used to abut against the inner end face of the horizontal bar 61 of the L-shaped rod 6. There are two upward-facing second vertical blocks 43 on both sides of the horizontal block or horizontal plate of the L-shaped block 42. Both second vertical blocks 43 have hinge holes. The connecting block 73 of the free end of the drive rod, such as the free end of the telescopic rod 72 of the electric push rod 7, has a hinge hole coaxial with the hinge holes of the two second vertical blocks 43. A first hinge shaft 41 is rotatably fitted in the hinge holes on the two second vertical blocks 43 and the connecting block 73 and is axially limited.

[0038] See Figure 3It is not difficult to understand that the axial limiting of the hinge shaft, such as the first hinge shaft 41, is a conventional technology. For example, one end of the first hinge shaft 41 is a large end or a shoulder, and the other end of the first hinge shaft 41 is axially limited by cotter pin and radial hole, or by external thread and nut.

[0039] The free end of the drive rod of the electric linear drive structure is hinged to a slider. The slider slides on a slide rail inside one end of a guide box fixed to a rotating door away from the housing. The guide box has a space for the free end of the drive rod to rotate around the hinge axis. The specific structure can also be as follows: the cross-section of both guide rails is dovetail-shaped, and the bottom end of the rectangular slider is provided with two dovetail grooves that slide with their respective dovetail guide rails. The slider can slide along the dovetail guide rails but will not disengage from the slide rails upwards. The end of the slider away from the spring is provided with a hinge seat. The hinge seat is hinged to the connecting block of the free end of the drive rod, such as the telescopic rod of an electric push rod, through a hinge axis and a hinge hole. The end plate and cover plate of the guide box containing the slider at this end are provided with notches for the free end of the telescopic rod of the drive rod, such as the telescopic rod of an electric push rod, to rotate around the hinge axis.

[0040] The free end of the drive rod of the electric linear drive structure is hinged to a slider. The slider slides on a slide rail inside one end of a guide box fixed to a rotating door away from the housing. The guide box has a space for the free end of the drive rod to rotate around the hinge axis. The specific structure can also be as follows: there are grooves on the opposing vertical surfaces of the two guide rails, and the rectangular slider is embedded in the two grooves on both sides. The slider can slide along the two grooves but will not disengage from the slide rails upwards. A hinge seat is provided at the top of the slider, and the hinge seat is hinged to the connecting block of the free end of the drive rod, such as the telescopic rod of an electric push rod, via a hinge axis and a hinge hole. The cover plate at this end of the guide box containing the slider has an elongated notch for the hinge seat on the slider to slide. The free end of the drive rod of the electric linear drive structure, such as the telescopic rod of an electric push rod, can rotate freely around the first hinge axis.

[0041] The locking rod can also be a straight rod, meaning the entire rod is a horizontal bar, with one part of the straight rod slidingly fitted inside the guide box, and the other part of the straight rod extending out of the other end of the guide box, such as... Figure 3 The outer part of the box at the left end engages or disengages with the door latch seat installed on the door frame. It is easy to understand that at this time, the door latch groove of the door latch seat and the straight rod are on the same straight line.

[0042] like Figure 3 , Figure 5 , Figure 7 As shown, the crossbar 61 of the L-shaped rod 6 can be fitted with the spring 51 and the guide box 5 in the following specific structure: the crossbar 61 of the L-shaped rod 6 slides in the first circular hole formed by the vertical partition 56 of the guide box 5 and the vertical pressure plate 532 of the box cover 53, and at one end away from the drive rod such as the electric push rod 7, such as the telescopic rod 72. Figure 3The left end plate 57 and the left end pressure plate 533 of the box cover form a second circular hole. A spring pressure plate 611 is fixed to the horizontal bar 61 of the L-shaped rod 6 inside the guide box 5 through a through hole. A spring, such as a compression spring 51 or a support spring, is movably fitted onto the horizontal bar 61 of the L-shaped rod 6 inside the guide box 5, with both ends abutting against the vertical partition 56 and the end plate, such as the left end plate 57, at the end away from the drive rod, such as the electric push rod 72. The end of the guide box 5 away from the drive rod, such as the electric push rod 72, is as follows: Figure 3 The left end of the guide box is the spring receiving cavity 55, which can also be called the crossbar sliding cavity.

[0043] like Figure 2 , Figure 3 As shown, it is easy to understand that the first circular hole is formed by the semi-circular notch 561 of the vertical partition 56 and the semi-circular notch 5321 of the vertical pressure plate 532 of the lid 53. The second circular hole is formed by the semi-circular notch 571 of the left end plate 57 and the semi-circular notch 5331 of the left end vertical pressure plate 533 of the lid 53.

[0044] The L-shaped rod can also be configured with the following specific structure in conjunction with the spring and guide box: the L-shaped rod slides in the vertical partition of the guide box and the circular through holes on the end plate away from the drive rod. The spring can be a tension spring installed in the spring pressure plate or spring pull plate and the guide box.

[0045] The crossbar of the L-shaped rod, in conjunction with the spring and guide box, can also adopt the following specific structure: the spring pressure plate is still retained, but its function is to maintain the vertical state of the vertical bar of the L-shaped rod, and tension springs are provided on the vertical bar of the L-shaped rod and the box body of the guide box.

[0046] like Figure 1 , Figure 4 , Figure 5 As shown, the specific structure of the door latch seat 11 fixed on the door frame 1 can be as follows: A door latch seat 11 is fixed on the door frame 1 on the left side above the rotating door 2, away from the hinge axis of the rotating door, such as the hinge axis of the door hinge 3. The bottom end of the door latch seat 11 has a latch block 112 with a vertical inner surface. The vertical surface of the latch block 112 and the vertical surface of the door frame 1 form a door latch groove 111 for the top of the vertical rod 62 of the L-shaped rod 6 to be inserted horizontally to lock or to be disengaged horizontally to unlock.

[0047] The door latch slot on the door latch seat can also be a horizontal slot.

[0048] The door latch slot on the door latch seat can also be a horizontal notch.

[0049] like Figure 6 , Figure 7As shown above, the electric linear drive structure, or electric linear drive device, is preferably an electric push rod 7. The tail end of the housing 71 of the electric push rod 7 is hinged to the fixed seat 12 fixed on the door frame 1 via a hinge block 74 and a second hinge shaft 75. The free end of the telescopic rod 72 of the electric push rod 7 is hinged to the slider 4. The electric push rod 7 is also called an electric push rod. The fixed seat 12 can also be called a hinge seat.

[0050] The electric linear drive structure described above can also be a cylinder.

[0051] The electric linear drive structure described above can also employ an electro-hydraulic push rod, etc.

[0052] The directional terms such as left and right are used for convenience of expression and are not intended to be limiting.

[0053] Components, structures, or quantities not marked above are not shown in the drawings. The drawings are for illustrative purposes only; in case of any discrepancies between the drawings and the text description, or between the drawings themselves, the text description shall prevail.

[0054] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An electrically driven revolving door device for opening and closing, comprising a revolving door rotatably fitted onto a door frame about its own hinge axis, a housing end of an electrically driven linear drive structure hinged to the door frame, a free end of a drive rod of the electrically driven linear drive structure hinged to a slider, the slider being slidably fitted onto a slide rail inside a guide box fixed to one end of the revolving door away from the housing end, the guide box having space for the free end of the drive rod to rotate about the hinge axis; characterized in that: It also includes a latch rod that can be driven by a slider hinged to the free end of the drive rod to insert into the latch slot of the latch seat fixed to the door frame, or to be released by a spring when the drive rod retracts. The revolving door is driven independently using a linear drive structure. Closing the door and locking it are achieved through a continuous first and second stroke. Opening the door and unlocking it are achieved through a continuous first and second stroke. The slider includes an L-shaped block. The outer surface of the first vertical block of the L-shaped block is a surface for abutting against the inner end face of the horizontal bar of the locking rod. There are two upward-facing second vertical blocks on both sides of the horizontal block of the L-shaped block. Each of the two second vertical blocks has a hinge hole. The connecting block at the free end of the drive rod has a hinge hole coaxial with the hinge holes of the two second vertical blocks. A first hinge shaft is rotatably fitted in the hinge holes on the two second vertical blocks and the connecting block and is axially limited. When it is necessary to unlock and open the revolving door, the power is turned on by using a remote control switch or a wired button switch. The electric linear drive structure drives the slider to retract, the spring naturally extends and moves the lock rod laterally away from the lock slot to unlock, thus completing the first stage of the stroke and unlocking. The electric linear drive structure drives the slider to continue to retract, which drives the guide box fixed on the revolving door through the first hinge axis with the slider and pulls the revolving door open, thus completing the second stage of the stroke and opening the door. When the revolving door and latch need to be closed, the power is turned on using a remote control switch or a wired button switch. The electric linear drive structure drives the slider to extend, and pushes the guide box fixed on the revolving door through the first hinge axis of the slider, thereby pushing the revolving door to close, completing the first stage of the stroke, i.e., closing the door. The telescopic rod drives the slider to continue to extend, and the slider hinged to the free end of the telescopic rod drives the latch rod to move laterally into the latch groove and insert to lock, completing the second stage of the stroke, i.e., locking.

2. The electrically driven revolving door device for opening and closing according to claim 1, characterized in that: The slide rail consists of two parallel vertical plates located near the housing end of the guide box. The bottom end of the slider is slidably fitted within the two vertical plates. The side walls of the elongated notch of the guide box cover, which allows the free end of the drive rod to rotate around the hinge axis, serve as limiting walls to prevent the slider from disengaging from the slide rail upwards.

3. The electrically driven revolving door device for opening and closing according to claim 1, characterized in that: The locking rod is an L-shaped rod. A portion of the horizontal bar of the L-shaped rod is slidably fitted inside the guide box, and the other portion of the horizontal bar of the L-shaped rod located outside the other end of the guide box is fixed to the vertical bar used for locking or unlocking.

4. The electrically driven revolving door device for opening and closing according to claim 1, characterized in that: The crossbar of the L-shaped rod slides within the first circular hole formed by the vertical partition of the guide box and the vertical pressure plate of the box cover, and the second circular hole formed by the end plate away from the drive rod and the end pressure plate of the box cover. A spring pressure plate is fitted and fixed to the crossbar of the L-shaped rod inside the guide box through a through hole. A spring is movably fitted onto the crossbar of the L-shaped rod inside the guide box, with its two ends abutting against the vertical partition and the end plate away from the drive rod, respectively.

5. The electrically driven revolving door device for opening and closing according to claim 1, characterized in that: The structure of the door latch slot of the door latch seat fixed to the door frame is as follows: A door latch seat is fixed on the door frame on the upper left side of the rotating door away from the hinge axis of the rotating door. The bottom end of the door latch seat has a latch block with a vertical inner surface. The vertical surface of the latch block and the vertical surface of the door frame form a door latch slot for the top of the vertical bar of the L-shaped rod to be inserted horizontally to lock or to be released horizontally to unlock.

6. The electrically driven revolving door device for opening and closing according to claim 1, characterized in that: The electric linear drive structure is an electric push rod. The tail end of the electric push rod housing is hinged to a fixed seat fixed on the door frame via a hinge block and a second hinge shaft. The free end of the extension rod of the electric push rod is hinged to a slider.

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