Access control device for office building
By designing components such as the first scroll spring and protective inflation strip in the access control device of the office building, the problem of possible clamping of pedestrians when the gate wing is closed is solved, and the wing gate movement is stopped when clamping people is clamped, and further clamping is avoided, and the gap is increased through the inflatable strip, reducing the sense of pressure and improving the passage experience.
Patent Information
- Application Number
- CN202510294255.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2025-05-30
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The access control device of existing office buildings may clamp pedestrians when the gate wings are closed, especially the elderly, children or those with limited mobility, causing physical damage.
An access control device is designed, including a gate case, a wing gate, a motor, a drive gear, a rotating column, a first scroll spring and an L-shaped mobile plate and other components. When the wing gate clamps the person, the first scroll spring tightens, the rotating column moves relative to the sleeve, and the wing gate stops rotating to avoid further clamping. In addition, by setting up the protective inflatable strip, when the clamping incident occurs, the wing gate is reversed and gas is sucked into the piston cylinder through the airflow pipe, making the filled protective inflatable strip shrivel, adding a gap between the wing gate and the human body and reducing the feeling of pressure.
It effectively avoids further clamping of the gate wings when clamping people, reduces damage to passers-by, improves the pass experience, and further reduces the sense of oppression on pedestrians through the cooperation of protective inflatable strips.
Smart Images
Figure CN120061263A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of access control devices, and specifically to an access control device for office buildings. Background Art
[0002] The access control device for office buildings is a security device used to control the entry and exit of personnel and vehicles in specific areas of office buildings. Its purpose is to ensure that only authorized personnel can enter, enhancing the security and management efficiency of the building. Using a magnetic card as the identity recognition medium, when the magnetic card approaches the card reader, the card reader reads the information on the magnetic card, and the door can be opened after successful verification. There are various types of access control devices for office buildings, including swing gates, tripod turnstiles, and wing gates. Wing gates usually rely on infrared sensors to detect whether there are people passing through the passage. However, the sensors have certain detection range and angle limitations, and there may be blind spots. When the body parts of pedestrians are in these blind spots, the wing gates may not be able to sense in time, resulting in the wing gates closing and pinching people.
[0003] The wing gates may pinch pedestrians when closing, especially the elderly, children, or those with limited mobility, causing physical injuries. Pinching incidents may lead to users having fear or distrust of the access control system, affecting the user experience; therefore, it does not meet the existing requirements, and for this reason, we propose an access control device for office buildings. Summary of the Invention
[0004] The present invention provides an access control device for office buildings, which has the beneficial effect of being able to stop moving when pinching people, avoiding further clamping, and solving the problem mentioned in the above background art that the wing gates may pinch pedestrians when closing, especially the elderly, children, or those with limited mobility, causing physical injuries.
[0005] The present invention provides the following technical solution: An access control device for office buildings includes a turnstile housing and wing gates. A motor is arranged inside the turnstile housing, and a driving gear is arranged on the motor. A rotating column is also arranged inside the turnstile housing, and a docking gear that meshes with the driving gear intermittently is arranged on the rotating column. One end of the rotating column is rotatably connected to a sleeve, and a first scroll spring is connected between the rotating column and the sleeve. The wing gates are connected to the side of the sleeve. An L-shaped moving plate is slidably connected to the outside of the rotating column. An L-shaped support rod is connected to the side of the sleeve, and a wedge block is connected to the end of the L-shaped support rod. The L-shaped moving plate is intermittently matched with the wedge block.
[0006] As an optional solution of the access control device for office buildings described in the present invention, wherein: One end of the first scroll spring is connected to the inner wall of the sleeve, and the other end of the first scroll spring is connected to the outside of the rotating column. The side of the L-shaped support rod adjacent to the docking gear is fixedly connected to the wedge block, and a contact column is connected to the side of the L-shaped moving plate; In normal state, the abutment column is in static contact with the inclined surface of the wedge block; when the wing gate clamps a person, the abutment column and the inclined surface of the wedge block are slidably fitted.
[0007] As an optional solution of the access control device for office buildings described in the present invention, a fixed block is installed on the side of the rotating column, a telescopic column is connected between the L-shaped movable plate and the fixed block, and a first return spring is sleeved on the outer side of the telescopic column.
[0008] As an optional solution for an access control device for office buildings described in the present invention, a rotating rod is rotatably installed at one end of the rotating column away from the sleeve, and the other end of the rotating rod is fixedly installed on the side wall of the gate housing, and a second volute spring is installed between the rotating column and the rotating rod.
[0009] As an optional solution of the access control device for office buildings described in the present invention, wherein: a forward end face gear is fixedly connected to the side of the docking gear away from the sleeve, the forward end face gear is sleeved on the outer side of the rotating column, a reverse end face gear is also rotatably mounted on the rotating column, and the reverse end face gear is rotatably mounted on the inner wall of the gate housing; When the driving gear and the docking gear are staggered, the reverse end face gear and the forward end face gear are docked and meshed.
[0010] As an optional scheme of the access control device for office buildings described in the present invention, a protective inflatable strip is installed on the edge of the wing gate, a mounting groove is opened on the rotating column, a piston cylinder is installed in the mounting groove, a mounting block is fixedly installed at one end of the piston cylinder, a piston disk is slidably installed inside the piston cylinder, and an airflow tube is connected between the piston cylinder and the protective inflatable strip.
[0011] As an optional solution for an access control device for office buildings described in the present invention, the side of the piston disc is connected to an extrusion column, the side of the extrusion column is connected to a drive plate, the other side of the drive plate is fixedly connected to the side of the L-shaped movable plate, the side of the mounting block is connected to a sliding support rod, the sliding support rod is slidably installed on the side of the L-shaped movable plate, and the airflow pipe passes through the interior of the wing gate, the rotating column and the L-shaped support rod.
[0012] As an optional solution for an access control device for office buildings described in the present invention, the end of the output shaft of the motor is connected to a connecting rod, the driving gear is connected to the outside of the connecting rod, a limit block is slidably installed on the rotating column, and the docking gear and the forward end face gear are fixedly engaged on the side of the limit block.
[0013] As an optional solution of an access control device for office buildings described in the present invention, a first abutment block is connected to the side of the rotating column, a second return spring is connected between the first abutment block and the limit block, and the second return spring is configured as a tension spring.
[0014] As an optional solution for an access control device for office buildings described in the present invention, one end of the wedge block is connected to a first limit plate, the other end of the wedge block is connected to a second limit plate, the end of the rotating column is provided with a first slot, the bottom of the rotating rod is connected to a first block, the first block is slidably engaged with the first slot, the bottom of the rotating column is connected to a second block, the second block is slidably engaged with the inside of the sleeve.
[0015] The present invention has the following beneficial effects:
[0016] 1. The access control device for office buildings, through the setting of the first volute spring, when the wing gate clamps a person, the wing gate is resisted, and the rotating column is affected by the motor to continue to rotate. At this time, the rotating column and the sleeve move relative to each other. While the rotating column rotates, the first volute spring is tightened, so that the wing gate will not continue to rotate and apply force, reducing the degree of damage to the passer-by; Moreover, through the cooperation of the L-shaped moving plate and the wedge block, the driving gear and the docking gear will be staggered, so that the second scroll spring is released, thereby driving the docking gear and the forward end face gear to reverse and realize the reverse rotation of the wing gate. In this way, not only can the wing gate be stopped from continuing to close and rotate when someone is clamped to avoid further clamping, but the reverse action of the second scroll spring can also make the wing gate move in the opposite direction quickly to avoid continuous squeezing of pedestrians, thus solving the problem that pedestrians may be clamped when the gate wing is closed, especially the elderly, children or people with mobility difficulties, causing physical injuries.
[0017] 2. The access control device for office buildings is equipped with a protective inflatable strip. During daily use, it can protect the wing gate and pedestrians passing through at the same time. The protective inflatable strip cooperates with the L-shaped support plate. When a person is pinched, the L-shaped movable plate slides upward on the rotating column, which not only drives the wing gate to reverse, but also pulls the extrusion column and the piston disk at the bottom of the extrusion column to slide inside the piston cylinder while the L-shaped movable plate moves, thereby sucking the gas inside the protective inflatable strip into the piston cylinder through the air flow tube. At this time, the filled protective inflatable strip becomes deflated, adding some gaps between the wing gate and the human body. After the gap is increased, the user's sense of oppression when passing through the wing gate is reduced, further reducing the damage to the passer-by when the wing gate pinches the person, and improving the passage experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.
[0019] Figure 2 Schematic cross-sectional structure diagram of the present invention.
[0020] Figure 3 For the present invention Figure 2 Schematic enlarged structure diagram at position A of the present invention.
[0021] Figure 4 Schematic structure diagram of the first scroll spring of the present invention.
[0022] Figure 5 Schematic cross-sectional structure diagram of the first scroll spring of the present invention.
[0023] Figure 6 Schematic cross-sectional structure diagram of the second scroll spring of the present invention.
[0024] Figure 7 Schematic structure diagram of the meshing structure of the driving gear and the docking gear of the present invention.
[0025] Figure 8 Schematic structure diagram of the second scroll spring of the present invention.
[0026] Figure 9 For the present invention Figure 7 Schematic enlarged structure diagram at position B of the present invention.
[0027] Figure 10 For the present invention Figure 8 Schematic enlarged structure diagram at position C of the present invention.
[0028] Figure 11 Schematic structure diagram of the second return spring of the present invention.
[0029] Figure 12 Schematic structure diagram of the piston cylinder of the present invention.
[0030] Figure 13 Schematic structure diagram of the piston disc of the present invention.
[0031] Figure 14 Schematic cross-sectional structure diagram of the wing gate of the present invention.
[0032] In the figure: 110, turnstile housing; 120, wing turnstile; 140, motor; 141, driving gear; 142, mating gear; 143, sleeve; 144, first scroll spring; 150, L-shaped support rod; 151, wedge block; 152, L-shaped moving plate; 153, abutting column; 154, rotating column; 155, fixed block; 160, telescopic column; 161, first return spring; 162, rotating rod; 163, second scroll spring; 164, forward face gear; 165, reverse face gear; 170, protective inflatable strip; 171, air flow pipe; 173, connecting rod; 174, limiting block; 175, first card slot; 180, first card block; 182, second card block; 203, first abutting block; 204, second return spring; 205, first limiting plate; 206, second limiting plate; 207, mounting block; 208, piston cylinder; 209, piston disc; 210, extrusion column; 211, sliding support rod; 220, driving plate; 300, mounting groove. Detailed implementation mode
[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0034] Embodiment 1. The purpose of this embodiment is to facilitate the solution of the problem that pedestrians may be pinched when the wing of the turnstile closes, especially the elderly, children or the disabled, causing physical injuries. Please refer to Figure 1-14 , an access control device for office buildings, including a turnstile housing 110 and a wing turnstile 120. A motor 140 is arranged inside the turnstile housing 110. A driving gear 141 is arranged on the motor 140. The end of the output shaft of the motor 140 is connected to a connecting rod 173, and the driving gear 141 is connected to the outside of the connecting rod 173.
[0035] A rotating column 154 is also arranged inside the turnstile housing 110. A mating gear 142 that meshes with the driving gear 141 intermittently is arranged on the rotating column 154. One end of the rotating column 154 is rotatably connected to a sleeve 143. A first scroll spring 144 is connected between the rotating column 154 and the sleeve 143. The wing turnstile 120 is connected to the side of the sleeve 143. An L-shaped moving plate 152 is slidably connected to the outside of the rotating column 154. An L-shaped support rod 150 is connected to the side of the sleeve 143. A wedge block 151 is connected to the end of the L-shaped support rod 150. The L-shaped moving plate 152 is intermittently matched with the wedge block 151.
[0036] See Figure 1-7, start the motor 140. Under normal circumstances, the output shaft of the motor 140 drives the connecting rod 173 to rotate. At the same time, the driving gear 141 connected to the connecting rod 173 rotates and meshes with the docking gear 142, thereby rotating the rotating column 154 in the middle of the docking gear 142. Since the first volute spring 144 is rigid, the rotating column 154 and the sleeve 143 are relatively stationary at this time. The rotating column 154 drives the sleeve 143 at the bottom to rotate, and the wing gate 120 on the side of the sleeve 143 is driven to open and close.
[0037] One end of the first volute spring 144 is connected to the inner wall of the sleeve 143 , and the other end of the first volute spring 144 is connected to the outer side of the rotating column 154 . The side of the L-shaped support rod 150 adjacent to the docking gear 142 is fixedly connected to the wedge block 151 , and the side of the L-shaped movable plate 152 is connected to a resistance column 153 .
[0038] In normal state, the abutment column 153 is in static contact with the inclined surface of the wedge block 151; when the wing gate 120 clamps a person, the abutment column 153 and the inclined surface of the wedge block 151 slide and fit together, a fixed block 155 is installed on the side of the rotating column 154, a telescopic column 160 is connected between the L-shaped movable plate 152 and the fixed block 155, a first return spring 161 is sleeved on the outer side of the telescopic column 160, the telescopic column includes a fixed column and a sliding column, the fixed column is connected to the side of the L-shaped movable plate 152, the sliding column is connected to the side of the fixed block 155, and the sliding column is sleeved on the outer side of the fixed column.
[0039] See Figure 1-8 When the wing gate 120 clamps a person, the wing gate 120 is resisted, and the rotating column 154 is affected by the motor 140 to continue to rotate. At this time, the first volute spring 144 contracts, and the rotating column 154 and the sleeve 143 move relative to each other. While the rotating column 154 rotates, the first volute spring 144 is tightened, so that the wing gate 120 will not continue to rotate and apply force, reducing the degree of injury to the passerby. The rotating column 154 continues to rotate to drive the side resistance column 153 and the wedge block 151 to slide relative to each other, and the L-shaped moving plate 152 slides and moves upward on the rotating column 154, thereby driving the docking gear 142 to move upward, so that the driving gear 141 and the docking gear 142 are staggered.
[0040] A rotating rod 162 is rotatably installed on one end of the rotating column 154 away from the sleeve 143, and the other end of the rotating rod 162 is fixedly installed on the side wall of the gate housing 110. A second volute spring 163 is installed between the rotating column 154 and the rotating rod 162. A forward end face gear 164 is fixedly connected to the side of the docking gear 142 away from the sleeve 143. The forward end face gear 164 is sleeved on the outer side of the rotating column 154. A reverse end face gear 165 is also rotatably installed on the rotating column 154. The reverse end face gear 165 is rotatably installed on the inner wall of the gate housing 110. When the driving gear 141 and the docking gear 142 are staggered, the reverse end face gear 165 is docked and meshed with the forward end face gear 164.
[0041] See Figure 1-7 Through the cooperation of the L-shaped moving plate 152 and the wedge block 151, when the driving gear 141 and the docking gear 142 are staggered, at the same time, the forward end face gear 164 moves up and meshes with the reverse end face gear 165, and the tightened second scroll spring 163 is released, the second scroll spring 163 drives the docking gear 142 and the forward end face gear 164 to reverse, thereby driving the rotating column 154 and the bottom sleeve 143 to reverse, realizing the reverse rotation of the wing gate 120. In this way, the wing gate 120 can be stopped from continuing to close the door and rotate when someone is clamped, thereby avoiding further clamping.
[0042] A limit block 174 is slidably installed on the rotating column 154, and the docking gear 142 and the forward end face gear 164 are fixedly engaged with the side of the limit block 174. A first resistance block 203 is connected to the side of the rotating column 154, and a second return spring 204 is connected between the first resistance block 203 and the limit block 174. The second return spring 204 is configured as a tension spring. When the force of the second volute spring 163 is released, the docking gear 142 and the forward end face gear 164 are pulled downward by the second return spring 204, and the docking gear 142 and the forward end face gear 164 slide up and down on the limit block 174, and mesh with the driving gear 141 to reset.
[0043] One end of the wedge block 151 is connected to a first limit plate 205, and the other end of the wedge block 151 is connected to a second limit plate 206. A first slot 175 is provided at the end of the rotating column 154, and a first block 180 is connected to the bottom of the rotating rod 162. The first block 180 is slidably engaged with the first slot 175. A second block 182 is connected to the bottom of the rotating column 154, and the second block 182 is slidably engaged with the inside of the sleeve 143. The first limit plate 205 and the second limit plate 206 are arranged to prevent the rotating column 154 from shifting while resisting the wedge block 151. The sliding engagement setting of the block 180 and the first slot 175 can ensure that the rotating column 154 and the rotating rod 162 rotate together when the second spiral spring 163 is not released, and can also ensure that the rotating column 154 and the rotating rod 162 rotate relative to each other when the second spiral spring 163 is released. The sliding setting of the second block 182 and the inside of the sleeve 143 can ensure that the rotating column 154 and the sleeve 143 rotate together when the first spiral spring 144 is not released, and can also ensure that the rotating column 154 and the sleeve 143 rotate relative to each other when the first spiral spring 144 is released.
[0044] In this embodiment: through the setting of the first volute spring 144, when the wing gate 120 clamps a person, the wing gate 120 is resisted, and the rotating column 154 is affected by the motor 140 to continue to rotate, and the first volute spring 144 is tightened. At this time, the rotating column 154 and the sleeve 143 move relative to each other. While the rotating column 154 rotates, the first volute spring 144 is tightened, so that the wing gate 120 will not continue to rotate and apply force, thereby reducing the degree of damage to the passer-by. The rotating column 154 continues to rotate to drive the side resistance column 153 and the wedge block 151 to slide relative to each other, and the L-shaped moving plate 152 slides and moves upward on the rotating column 154, thereby driving the docking gear 142 to move upward, so that the driving gear 141 and the docking gear 142 are staggered. Through the cooperation of the L-shaped moving plate 152 and the wedge block 151, when the driving gear 141 and the docking gear 142 are staggered and the forward end face gear 164 moves up and meshes with the reverse end face gear 165, the tightened second scroll spring 163 is released, and the second scroll spring 163 drives the docking gear 142 and the forward end face gear 164 to reverse, thereby driving the rotating column 154 and the bottom sleeve 143 to reverse, and realize the reverse rotation of the wing gate 120. In this way, not only can the wing gate 120 be stopped from continuing to close and rotate when someone is clamped, but also further clamping can be avoided, which causes continuous squeezing of pedestrians and prevents them from passing smoothly, and solves the problem that pedestrians may be clamped when the gate wing is closed, especially the elderly, children or people with limited mobility, causing physical injuries.
[0045] Embodiment 2: This embodiment aims to further reduce the direct damage caused by the wing gate to the passers-by. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1-14, a protective inflatable strip 170 is installed on the edge of the wing gate 120. An installation groove 300 is formed on the rotating column 154. A piston cylinder 208 is installed in the installation groove 300. An installation block 207 is fixedly installed at one end of the piston cylinder 208. A piston disc 209 is slidably installed inside the piston cylinder 208. An air flow pipe 171 is connected between the piston cylinder 208 and the protective inflatable strip 170. A pressing column 210 is connected to the side of the piston disc 209. A driving plate 220 is connected to the side of the pressing column 210. The other side of the driving plate 220 is fixedly connected to the side of the L-shaped moving plate 152. A sliding support rod 211 is connected to the side of the installation block 207. The sliding support rod 211 is slidably installed on the side of the L-shaped moving plate 152. The air flow pipe 171 passes through the inside of the wing gate 120, the rotating column 154 and the L-shaped support rod 150.
[0046] See Figure 8-14 , when the motor 140 is started, the output shaft of the motor 140 drives the driving gear 141 to rotate and engage with the docking gear, so that the rotating column 154 drives the sleeve 143 to rotate, and the wing gate 120 is closed or opened. When a passing person's leg is clamped by the wing gate 120, the wing gate 120 is resisted, causing the first scroll spring 144 to release, driving the rotating column 154 to rotate reversely. When the L-shaped moving plate 152 slides upward on the rotating column 154, it not only drives the wing gate 120 to reverse, but also pulls the pressing column 210 and the piston disc 209 at the bottom of the pressing column 210 to slide inside the piston cylinder 208. Thus, the gas inside the protective inflatable strip 170 is sucked into the piston cylinder 208 through the air flow pipe 171. At this time, the full protective inflatable strip 170 becomes shriveled, adding some gaps between the wing gate 120 and the human body, so as to timely stop the oppression of the wing gate 120 on the human body.
[0047] In this embodiment: through the setting of the protective inflatable strip 170, the protective inflatable strip 170 cooperates with the L-shaped support plate. When the L-shaped moving plate 152 slides upward on the rotating column 154, it not only drives the wing gate 120 to reverse, but also pulls the pressing column 210 and the piston disc 209 at the bottom of the pressing column 210 to slide inside the piston cylinder 208. Thus, the gas inside the protective inflatable strip 170 is sucked into the piston cylinder 208 through the air flow pipe 171. At this time, the full protective inflatable strip 170 becomes shriveled, adding some gaps between the wing gate 120 and the human body. After adding the gaps, the sense of oppression felt by the user when passing through the wing gate 120 is reduced, improving the passing experience.
[0048] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.
[0049] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.
Claims
1. A door access control device for an office building, comprising a gate housing (110) and a wing gate (120), wherein a motor (140) is disposed inside the gate housing (110), and characterized in that: The motor (140) is provided with a driving gear (141), and a rotating column (154) is further provided inside the gate housing (110). The rotating column (154) is provided with a docking gear (142) that intermittently meshes with the driving gear (141). One end of the rotating column (154) is rotatably connected to a sleeve (143), and a first volute spring (144) is connected between the rotating column (154) and the sleeve (143). The wing gate (120) is connected to the side of the sleeve (143), and an L-shaped movable plate (152) is slidably connected to the outer side of the rotating column (154). The side of the sleeve (143) is connected to an L-shaped support rod (150), and the end of the L-shaped support rod (150) is connected to a wedge block (151), and the L-shaped movable plate (152) intermittently cooperates with the wedge block (151).
2. The access control device for office buildings according to claim 1, characterized in that: One end of the first volute spring (144) is connected to the inner wall of the sleeve (143), and the other end of the first volute spring (144) is connected to the outer side of the rotating column (154); a side of the L-shaped support rod (150) adjacent to the docking gear (142) is fixedly connected to the wedge block (151); and a side of the L-shaped movable plate (152) is connected to a resisting column (153); In a normal state, the abutment column (153) is in static contact with the inclined surface of the wedge-shaped block (151); when the wing gate (120) clamps a person, the abutment column (153) and the inclined surface of the wedge-shaped block (151) are in sliding contact.
3. The access control device for office buildings according to claim 2, characterized in that: A fixed block (155) is installed on the side of the rotating column (154), a telescopic column (160) is connected between the L-shaped movable plate (152) and the fixed block (155), and a first return spring (161) is sleeved on the outer side of the telescopic column (160).
4. The access control device for office buildings according to claim 1, characterized in that: A rotating rod (162) is rotatably mounted on one end of the rotating column (154) away from the sleeve (143); the other end of the rotating rod (162) is fixedly mounted on the side wall of the gate housing (110); and a second volute spring (163) is mounted between the rotating column (154) and the rotating rod (162).
5. The access control device for office buildings according to claim 1, characterized in that: A forward end face gear (164) is fixedly connected to a side of the docking gear (142) away from the sleeve (143); the forward end face gear (164) is sleeved on the outside of the rotating column (154); a reverse end face gear (165) is also rotatably mounted on the rotating column (154); the reverse end face gear (165) is rotatably mounted on the inner wall of the gate housing (110); When the driving gear (141) and the docking gear (142) are offset, the reverse end face gear (165) and the forward end face gear (164) are docked and meshed.
6. The access control device for office buildings according to claim 2, characterized in that: The edge of the wing gate (120) is installed with a protective inflatable strip (170), the rotating column (154) is provided with a mounting groove (300), a piston cylinder (208) is installed in the mounting groove (300), a mounting block (207) is fixedly installed at one end of the piston cylinder (208), a piston disc (209) is slidably installed inside the piston cylinder (208), and an airflow tube (171) is connected between the piston cylinder (208) and the protective inflatable strip (170).
7. The access control device for office buildings according to claim 6, characterized in that: The piston disc (209) is connected to a squeeze column (210) on the side, and the squeeze column (210) is connected to a drive plate (220) on the side. The other side of the drive plate (220) is fixedly connected to the side of the L-shaped movable plate (152). The mounting block (207) is connected to a sliding support rod (211) on the side. The sliding support rod (211) is slidably mounted on the side of the L-shaped movable plate (152). The airflow pipe (171) passes through the interior of the wing gate (120), the rotating column (154) and the L-shaped support rod (150).
8. The access control device for office buildings according to claim 5, characterized in that: The end of the output shaft of the motor (140) is connected to a connecting rod (173), the driving gear (141) is connected to the outside of the connecting rod (173), a limit block (174) is slidably mounted on the rotating column (154), and the docking gear (142) and the forward end face gear (164) are fixedly engaged with the side of the limit block (174).
9. The access control device for office buildings according to claim 8, characterized in that: A first abutment block (203) is connected to the side of the rotating column (154), a second return spring (204) is connected between the first abutment block (203) and the limit block (174), and the second return spring (204) is configured as a tension spring.
10. The access control device for office buildings according to claim 2, characterized in that: One end of the wedge block (151) is connected to a first limit plate (205), and the other end of the wedge block (151) is connected to a second limit plate (206). A first clamping groove (175) is formed at the end of the rotating column (154). A first clamping block (180) is connected to the bottom of the rotating rod (162). The first clamping block (180) is slidably engaged with the first clamping groove (175). A second clamping block (182) is connected to the bottom of the rotating column (154). The second clamping block (182) is slidably engaged with the inside of the sleeve (143).