A center column structure for double doors

Abstract

The present application relates to a center column structure for a double-opening door, and to the technical field of double-opening door equipment; the center column structure for a double-opening door comprises a first base body and a second base body, the first base body being used to connect to the top end of the door frame, the second base body being used to connect to the bottom end of the door frame, an abutting column being further provided between the first base body and the second base body, the abutting column being used to abut against the intersection of the two door bodies, the bottom end of the abutting column being sleeved on the second base body, a locking mechanism being provided on the first base body, the locking mechanism being used for fixed connection between the first base body and the abutting column. The present application has the following effects: the abutting column can be fixed to the first base body and the second base body, so that it can abut against the intersection of the two door bodies, thereby reducing the probability of deformation at the intersection of the two door bodies, thereby reducing the probability of damage to the intersection of the two door bodies due to deformation, effectively improving the safety performance of the double-opening door, and at the same time ensuring the service life of the double-opening door.

Description

Technical Field

[0001] The present application relates to the technical field of double-door equipment, and in particular to a center column structure for double doors. Background Art

[0002] With the continuous development of social economy and the improvement of scientific and technological levels, people's demand for doors that can accommodate multiple people entering and exiting at the same time in public places such as shopping malls, residences and factories is also increasing. Double doors, as a device that increases the opening space by setting two door bodies, play an important role in public places.

[0003] With regard to the above-mentioned related technologies, since most of the existing double doors only lock the door bodies by providing a door closer and a door lock for locking the two door bodies, this means that only the top and bottom ends of the intersection of the two door bodies (i.e., the area near the gap between the two door bodies) are in contact with the door frame. Therefore, when unscrupulous elements hit the intersection between the two door bodies outside the door, the middle position of the intersection of the two door bodies along its own height direction is easily impacted and deformed, thereby being damaged, which reduces the safety performance of the double door, so it needs to be improved. Summary of the Invention

[0004] In order to ensure and improve the safety performance of double doors, the present application provides a center column structure for double doors.

[0005] This application provides a center column structure for double doors, which adopts the following technical solutions:

[0006] A center column structure for double doors includes a first base body and a second base body, the first base body is used to connect to the top end of the door frame, and the second base body is used to connect to the bottom end of the door frame. An abutment column is also provided between the first base body and the second base body, and the abutment column is used to abut against the intersection of the two door bodies. The bottom end of the abutment column is sleeved on the second base body, and a locking mechanism is provided on the first base body, and the locking mechanism is used to fix the first base body and the abutment column.

[0007] By adopting the above technical solution, compared with the prior art, which only uses door locks and door closers to achieve locking between the two door bodies, it is easy for unscrupulous elements to hit the middle position of the junction between the door bodies, causing the junction of the two door bodies to deform. The present application arranges the first seat body, the second seat body and the abutment column so that the top and bottom ends of the abutment column can be connected to the first seat body and the second seat body respectively to achieve fixation, and enables itself to abut against the junction of the two door bodies, thereby reducing the probability of deformation of the junction of the two door bodies due to lack of support, thereby reducing the probability of damage to the junction of the two door bodies due to deformation, effectively improving the safety performance of the double-opening door, and at the same time ensuring the service life of the double-opening door.

[0008] Preferably, a clearance groove is provided on one side of the top end of the abutment column, and the abutment column is sleeved on the first seat body through the clearance groove. The locking mechanism includes a locking tongue and an abutment frame. The end of the locking tongue away from the clearance groove is rotatably connected to the first seat body, and the abutment frame is arranged at the top end of the abutment column, and the end of the locking tongue close to the clearance groove is located on the displacement path of the abutment frame in the process of separating from the first seat body together with the abutment column.

[0009] By adopting the above technical solution, the setting of the giving groove and the locking mechanism enables the relevant personnel to first sleeve the bottom end of the abutting column on the second base body, and then pass through the giving groove to allow the bottom end of the first base body to enter the top end of the abutting column from the giving groove to realize the sleeve of the first base body and the abutting column. When the first base body is completely entered into the abutting column, the locking tongue on the first base body is away from the end of its own rotation connection and abuts against the abutting frame, thereby hindering the separation of the first base body and the abutting column by abutting, and realizing the fixation of the first base body and the abutting column; the setting of the giving groove and the locking mechanism can effectively facilitate the installation and fixation between the abutting column and the first base body by the relevant personnel, thereby facilitating the installation of the abutting column by the relevant personnel and improving the installation efficiency of the abutting column.

[0010] Preferably, the locking mechanism also includes an unlocking assembly, which includes an unlocking piece, a rotating frame and an unlocking frame. The rotating frame is rotatably connected to the abutment column, and the unlocking frame is slidably connected to the abutment column. The lock tongue is located on the sliding path of the unlocking frame. An abutment portion is provided on one end of the rotating frame, and the abutment portion abuts against an end of the unlocking frame away from the lock tongue. The unlocking piece is used to drive the rotating frame to rotate.

[0011] By adopting the above technical solution and setting the unlocking assembly, relevant personnel can drive the rotating frame to rotate through the unlocking member, thereby causing the abutment on the rotating frame to displace, so that the abutment pushes the unlocking frame to slide away from one end of the lock tongue, and then the unlocking frame gradually abuts against the lock tongue, thereby pushing the lock tongue to rotate, so that the lock tongue gradually releases the state of abutting against the abutment frame, thereby realizing unlocking of the first seat body and the abutment column, and effectively facilitating the relevant personnel to disassemble the abutment frame.

[0012] Preferably, a driven frame is further provided in the first seat body, the driven frame is slidably connected to the first seat body, and the sliding direction of the driven frame and the unlocking frame is the same, the driven frame is located on the sliding path of the unlocking frame, the lock tongue is located on the sliding path of the driven frame, and the unlocking frame pushes the lock tongue to rotate through the driven frame, and a locking mechanism is also provided on the first seat body, the locking mechanism is used to lock the driven frame when the driven frame pushes the lock tongue to rotate to release the abutment state with the abutment frame.

[0013] When the latch is released, the latch engages the fork and the cam, and the latch engages the fork, which in turn engages the latch arm, and the latch arm engages the fork, which in turn engages the cam, and the latch arm engages the fork, which in turn engages the cam.

[0014] Preferably, the locking mechanism includes a locking frame, an elastic member and a linkage assembly, the locking frame is slidably connected to the first seat body, the sliding direction of the locking frame is perpendicular to the sliding direction of the driven frame, and the locking frame is used to lock the driven frame by abutting against the bottom end of the driven frame through its own top end after the driven frame reaches the specified position, the elastic member is used to allow the locking frame to continue to abut against the driven frame, and the abutting column drives the locking frame to return to its initial position through the linkage assembly.

[0015] By adopting the above technical solution, the specific setting of the locking mechanism is made so that after the driven frame slides and pushes the lock tongue to rotate to the state of releasing the abutment with the abutment frame, the top end of the locking frame abuts against the bottom end of the driven frame, thereby preventing the driven frame from sliding back through the abutment, so that the driven frame maintains the current position; at the same time, the existence of the linkage component enables the abutment column to drive the locking frame to return to the initial position through the linkage component during the process of gradually separating from the first seat body, thereby unlocking the driven frame, so that the driven frame and the lock tongue gradually return to the initial position, without affecting the next use, and also facilitating the operation of relevant personnel.

[0016] Preferably, the linkage assembly includes a driving frame, a linkage frame and a sleeve frame, the driving frame is connected to the abutment column, the middle part of the linkage frame is rotatably connected to the first seat body, the bottom end of the linkage frame is located on the displacement path of the driving frame, the sleeve frame is sleeved on the top end of the linkage frame and is slidably connected to the linkage frame, and the sleeve frame is rotatably connected to the locking frame.

[0017] By adopting the above technical solution and the specific setting of the linkage assembly, the abutting column can drive the driving frame to slide during the process of gradually separating from the first seat body, so that the driving frame and the bottom of the linkage frame are abutted, thereby driving the linkage frame to rotate. The rotation of the linkage frame causes the sleeve frame to be displaced, thereby driving the locking frame to return to the initial position, realizing the driving of the locking frame, so that the abutting frame can automatically realize the reset of the driven frame and the lock tongue during the movement, effectively facilitating the relevant personnel to disassemble and install the abutting column.

[0018] Preferably, a return spring is further provided on the unlocking frame, one end of the return spring abuts against the inner wall of the abutting column, and the other end abuts against an end of the unlocking frame close to the lock tongue.

[0019] By adopting the above technical solution and setting the reset spring, the unlocking frame can be restored to the initial position under the elastic force of the reset spring, so that after the lock tongue is driven, the unlocking frame and the rotating frame can automatically return to the initial position for the next use, thereby saving the step of manually resetting the unlocking frame and the rotating frame, and effectively facilitating the operation of relevant personnel.

[0020] Preferably, the unlocking member includes a lock head and a key, the lock head is mounted on the abutment column, the lock head is used to drive the rotating frame to rotate, and the key is used to drive the lock head to work.

[0021] By adopting the above technical solution and setting the unlocking member, the lock head can drive the rotating frame only when the corresponding key is driven, thereby effectively reducing the probability of unscrupulous elements driving the rotating frame and increasing the anti-theft effect of the present application.

[0022] Preferably, a limiting frame is further provided in the abutting column, a limiting slot is provided on the unlocking frame, an extending direction of the limiting slot is the sliding direction of the unlocking frame, and the limiting frame is inserted into the limiting slot.

[0023] By adopting the above technical solution, the setting of the limit frame enables the limit frame to limit the sliding path of the unlocking frame by abutting against the inner wall of the limit groove, thereby reducing the probability of the unlocking frame sliding too much under the elastic force of the return spring, thereby effectively ensuring the stability of the unlocking frame when sliding.

[0024] Preferably, the abutting column includes a connecting frame and an additional frame, the connecting frame is sleeved on the first base body, the connecting frame is connected to the additional frame, and the additional frame is sleeved on the second base body.

[0025] By adopting the above technical solution, the setting of the adjustment frame enables relevant personnel to select the specific height of the double-door and select the adjustment frame of appropriate length to connect with the abutment column, so as to adapt to double doors of different heights, thereby increasing the scope of application and practicality of this application.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The arrangement of the first base, the second base and the abutting column enables the top and bottom ends of the abutting column to be connected to the first base and the second base respectively to achieve fixation, and enables the abutting column to abut against the intersection of the two door bodies, thereby reducing the probability of deformation of the intersection of the two door bodies due to lack of support, thereby reducing the probability of damage to the intersection of the two door bodies due to deformation, effectively improving the safety performance of the double door, and at the same time ensuring the service life of the double door;

[0028] 2. The arrangement of the give way groove and the locking mechanism enables the relevant personnel to first sleeve the bottom end of the abutting column onto the second seat body, and then pass through the give way groove to allow the bottom end of the first seat body to enter the top end of the abutting column from the give way groove to achieve the sleeve of the first seat body and the abutting column, and then the lock tongue and the abutting frame abut against each other to lock the first seat body and the abutting column. At the same time, the relevant personnel can also drive the rotating frame to rotate through the unlocking member, thereby pushing the lock tongue to rotate through the unlocking frame, so that the lock tongue gradually releases the state of abutting with the abutting frame, thereby achieving the unlocking of the first seat body and the abutting column, which effectively facilitates the relevant personnel to dismantle the abutting frame;

[0029] 3. The arrangement of the driven frame and the locking mechanism enables, when the relevant personnel make the unlocking frame slide through the unlocking member and the rotating frame, the unlocking frame can gradually abut against the driven frame, thereby pushing the driven frame to slide and making the driven frame abut against the lock tongue, realizing the driving of the lock tongue, and when the driven frame pushes the lock tongue to rotate to the state of releasing the abutment with the abutment frame, the locking mechanism can lock the driven frame, thereby making the driven frame and the lock tongue maintain the current state, thereby effectively reducing the probability of the lock tongue returning to the initial position and abutting against the abutment frame again when the abutment column is separated from the first seat body, thereby hindering the separation of the abutment column, and effectively facilitating the relevant personnel to separate the abutment column from the first seat body. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram used to reflect the overall structure of the center column for double doors in Example 1 of the present application.

[0031] Figure 2 It is a structural diagram used to reflect the unlocking component in Example 1 of the present application.

[0032] Figure 3 It is a structural diagram used to reflect the driving part in Example 1 of the present application.

[0033] Figure 4 It is a schematic diagram used to illustrate the overall structure of the center column for double doors in Example 2 of the present application.

[0034] Figure 5 It is a structural diagram used to reflect the driving frame in Example 2 of the present application.

[0035] Figure 6It is a structural diagram used to reflect the linkage frame in Example 2 of the present application.

[0036] Explanation of Reference Numerals: 1. first base; 2. second base; 3. abutting column; 31. connecting frame; 311. clearance groove; 32. additional frame; 4. locking mechanism; 41. lock tongue; 42. abutting frame; 43. torsion spring; 44. unlocking assembly; 441. unlocking member; 4411. lock head; 4412. key; 4413. driving portion; 442. rotating frame; 4421. abutting portion; 443. unlocking frame; 4431. sliding portion; 4432. Unlocking portion; 45. Mounting frame; 46. Return spring; 47. Limiting frame; 48. Driven frame; 481. Locking portion; 5. Driving slot; 6. Limiting slot; 7. Slide rail; 8. Locking mechanism; 81. Locking frame; 811. Sliding portion; 82. Elastic member; 83. Linkage assembly; 831. Driving frame; 832. Linkage frame; 833. Sleeve frame; 84. Intermediate frame; 85. Extension frame; 86. Protruding frame; 87. Return spring. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-6 This application is described in further detail.

[0038] Example 1:

[0039] Example 1 of the present application discloses a center column structure for a double door. Figure 1 The center column structure for double doors includes a first base 1 and a second base 2. The first base 1 is connected to the top of the door frame, and the second base 2 is connected to the bottom of the door frame. An abutment column 3 is provided between the first and second bases 1 and 2, and is used to abut the junction of the two door bodies. The bottom end of the abutment column 3 is sleeved onto the second base 2. The first base 1 is provided with a locking mechanism 4, which is used to securely connect the first base 1 and the abutment column 3.

[0040] Reference Figure 1 The top of the first base body 1 is fixedly connected to the top of the door frame via multiple bolts, and the bottom of the second base body 2 is fixedly connected to the bottom of the door frame via multiple bolts. The abutment column 3 includes a connecting frame 31 and an additional frame 32. The connecting frame 31 is a square column frame with a hollow interior. The top of the connecting frame 31 is sleeved on the bottom of the first base body 1. A clearance groove 311 is formed on a side wall of the top of the connecting frame 31, so that the first base body 1 can pass through the clearance groove 311 and enter the connecting frame 31, thereby realizing the sleeve of the connecting frame 31 on the first base body 1.

[0041] Reference Figure 1The bottom end of the connecting frame 31 is sleeved on the top end of the additional frame 32 and is fixedly connected to the additional frame 32 by a plurality of bolts. The bottom end of the additional frame 32 is sleeved on the second base 2, so that relevant personnel can adapt to the needs of double doors of different sizes by replacing the additional frame 32 of different lengths.

[0042] Reference Figure 1 and Figure 2 The locking mechanism 4 includes a locking tongue 41 and an abutment frame 42. The locking tongue 41 is located within the first base 1, with one end of the locking tongue 41, away from the clearance groove 311, being rotatably connected to the first base 1 via a pin. The other end of the locking tongue 41 extends toward the end closer to the clearance groove 311 and is tilted downward. A torsion spring 43 is also mounted on the pin for rotating the locking tongue 41. One end of the torsion spring 43 abuts against the outer wall of the locking tongue 41, and the other end abuts against the inner wall of the first base 1, thereby allowing the locking tongue 41 to return to its original position.

[0043] Reference Figure 1 and Figure 2 The abutment frame 42 is arranged at the top position inside the connecting frame 31 and is lower than the rotation connection of the locking tongue 41. The abutment frame 42 is fixedly connected to the inner wall of the connecting frame 31. The end of the locking tongue 41 away from the torsion spring 43 is located on the displacement path of the abutment frame 42 when the connecting frame 31 is separated from the first base 1. Therefore, the abutment frame 42 prevents the connecting frame 31 from further displacement by abutting against the locking tongue 41, thereby achieving locking between the connecting frame 31 and the first base 1.

[0044] Reference Figure 1 and Figure 2 When the abutment column 3 is to be installed, the bottom end of the additional frame 32 is first sleeved onto the top end of the second base body 2. The connecting frame 31 is then tilted and rotated so that the clearance groove 311 on the connecting frame 31 aligns with the first base body 1. The bottom end of the first base body 1 gradually passes through the clearance groove 311 and enters the connecting frame 31. During this process, the abutment frame 42 gradually abuts against the bottom wall of the locking tongue 41, thereby driving the locking tongue 41 to rotate and make way for the abutment frame 42. After the connecting frame 31 is completely sleeved, the abutment frame 42 moves to the side of the locking tongue 41 near the clearance groove 311 and releases the state of being lowered with the locking tongue 41. At this time, the end of the locking tongue 41 near the clearance groove 311 faces the abutment frame 42 and is located on the displacement path of the abutment frame 42 during the process of the abutment frame 42 and the connecting frame 31 being separated from the first base body 1, thereby preventing the connecting frame 31 from separating from the first base body 1 and achieving a locking state between the two.

[0045] Reference Figure 1 and Figure 2The locking mechanism 4 also includes an unlocking assembly 44, which includes an unlocking member 441, a rotating frame 442 and an unlocking frame 443. The unlocking member 441 includes a lock head 4411 and a key 4412. The lock head 4411 is fixedly installed in the connecting frame 31, and the lock head 4411 extends out of the connecting frame 31 on a side away from the give way groove 311, so that the key 4412 is inserted into the lock head 4411.

[0046] Reference Figure 1 and Figure 3 A driving portion 4413 is provided on one end of the lock head 4411 located in the connecting frame 31. The driving portion 4413 is inserted into the rotating frame 442. The rotating frame 442 is provided with a driving slot 5 for inserting the driving portion 4413.

[0047] Reference Figure 1 、 Figure 2 and Figure 3 When the key 4412 is not inserted into the lock cylinder 4411, the driving portion 4413 is located inside the lock cylinder 4411. When the key 4412 is inserted into the lock cylinder 4411, the key 4412 drives one end of the driving portion 4413 to move out of the lock cylinder 4411 and insert it into the driving slot 5, thereby driving the rotating frame 442. The cooperation between the key 4412 and the lock cylinder 4411, the key 4412 driving the driving portion 4413 to move out of the lock cylinder 4411, and the specific driving structure inside the lock cylinder 4411 are all known in the art and will not be described in detail here.

[0048] Reference Figure 1 and Figure 2 The connecting frame 31 is further provided with a mounting frame 45, which is fixedly connected to the connecting frame 31 via a pin. The rotating frame 442 is located within the connecting frame 31 and is rotatably connected to the mounting frame 45. The rotating frame 442 is provided with abutment portions 4421 at both ends along its length. The abutment portions 4421 are integrally formed with the rotating frame 442, and the top ends of the abutment portions 4421 abut against the bottom ends of the unlocking frame 443. In other embodiments, the abutment portions 4421 may be provided with a circular ring body, so that the ring body and the abutment portion 4421 are rotatably connected, thereby converting sliding friction into rolling friction and reducing wear.

[0049] Reference Figure 2 Two sliding portions 4431 are provided at the top of the unlocking frame 443. These sliding portions 4431 are integrally formed with the unlocking frame 443. Each sliding portion 4431 passes upward through the mounting frame 45 and is slidably connected thereto. Each sliding portion 4431 slides in the height direction of the mounting frame 45. A return spring 46 is sleeved around each sliding portion 4431. One end of each return spring 46 abuts against the bottom wall of the mounting frame 45, and the other end abuts against the top of the unlocking frame 443.

[0050] Reference Figure 2 The unlocking frame 443 is further provided with a limiting slot 6, the length direction of which corresponds to the sliding direction of the sliding portion 4431. The mounting frame 45 is further provided with a limiting frame 47, one end of which is fixedly connected to the mounting frame 45, and the other end of which passes through the limiting slot 6 and abuts against the inner wall of the limiting slot 6, thereby limiting the sliding of the unlocking frame 443.

[0051] Reference Figure 2 The top of the unlocking frame 443 also extends upward to form an unlocking portion 4432. The unlocking portion 4432 is located between the two sliding portions 4431 and is integrally formed with the unlocking frame 443. The top of the unlocking portion 4432 extends upward and is bent. The lock tongue 41 is located on the displacement path of the unlocking portion 4432.

[0052] Reference Figure 1 、 Figure 2 and Figure 3 In the initial state, that is, when the connecting frame 31 and the first base 1 are fully assembled, the unlocking frame 443 is located at the bottom of its own sliding path. When the relevant personnel insert the key 4412 into the lock head 4411, the key 4412 drives the driving portion 4413 on the lock head 4411 to be inserted into the driving slot 5 on the rotating frame 442. The relevant personnel then turns the key 4412, causing the key 4412 to drive the driving portion 4413 to rotate, thereby rotating the rotating frame 442, causing one of its abutting portions 4421 to move upward, thereby pushing the unlocking frame 443 to slide upward, and causing the unlocking frame 443 to gradually abut against the bottom end of the lock tongue 41, driving the bottom end of the lock tongue 41 to rotate upward, thereby causing the bottom end of the lock tongue 41 to rotate above the abutting frame 42, releasing the restriction on the abutting frame 42. Afterwards, the relevant personnel rotate the connecting frame 31 to disengage the connecting frame 31 from the first base body 1, and then move the abutting column 3 upward as a whole to disengage the additional frame 32 from the second base body 2, thereby realizing the disassembly of the abutting column 3.

[0053] The implementation principle of the center column structure for double doors in Example 1 of the present application is as follows: when the abutment column 3 needs to be installed, the bottom end of the additional frame 32 is first sleeved on the top end of the second base body 2, and then the connecting frame 31 is tilted and rotated so that the clearance groove 311 on the connecting frame 31 corresponds to the first base body 1, and the bottom end of the first base body 1 gradually passes through the clearance groove 311 and enters the connecting frame 31. During this process, the abutment frame 42 gradually abuts against the bottom wall of the lock tongue 41, thereby driving the lock tongue 41 to rotate, thereby making way for the abutment frame 42. After the connecting frame 31 is sleeved, the abutment frame 42 moves to the side of the lock tongue 41 close to the clearance groove 311, and releases the state of being lowered with the lock tongue 41. At this time, the end of the locking tongue 41 close to the yield groove 311 is facing the abutment frame 42 and is located on the displacement path of the abutment frame 42 in the process of separating from the first base body 1 together with the connecting frame 31, thereby preventing the connecting frame 31 from separating from the first base body 1, achieving locking between the two, and completing the installation.

[0054] Example 2:

[0055] The difference between Example 2 of the present application and Example 1 is that: Figure 4 and Figure 5 The number of the abutting frames 42 is set to two, and they are respectively located on opposite sides of the first base body 1 so that a space is left between the two abutting frames 42.

[0056] Reference Figure 4 、 Figure 5 and Figure 6 A slide rail 7 is fixedly mounted on the inner wall of the first base body 1 and extends along the height direction of the first base body 1. A driven frame 48 is also provided within the first base body 1. The driven frame 48 is located directly above the unlocking frame 443 and on the sliding path of the top end of the unlocking frame 443. The driven frame 48 extends upward from the end of the lock head 4411 and is slidably connected to the inner wall of the first base body 1 via the slide rail 7. The sliding direction of the driven frame 48 is the same as that of the unlocking frame 443. The lock tongue 41 is located on the sliding path of the driven frame 48. The top end of the driven frame 48 is bent to better contact the bottom wall of the lock tongue 41.

[0057] Reference Figure 4 、 Figure 5 and Figure 6The first base body 1 is also provided with a locking mechanism 8, which comprises a locking frame 81, an elastic member 82, and a linkage assembly 83. An intermediate frame 84 is also provided within the first base body 1. The top of the intermediate frame 84 is fixedly connected to the inner wall of the first base body 1, and the bottom of the intermediate frame 84 extends downward. The locking frame 81 is provided with two sliding portions 811. One end of each sliding portion 811 is integrally formed with the locking frame 81. The other end of each sliding portion 4431 passes through the intermediate frame 84 and is slidably connected thereto. The sliding direction of the sliding portion 4431 is perpendicular to the sliding direction of the driven frame 48.

[0058] Reference Figure 5 and Figure 6 Each sliding portion 4431 is sleeved with an elastic member 82. In the embodiment of the present application, the elastic member 82 is configured as a pressure spring. The pressure spring is sleeved on the corresponding sliding portion 4431. One end of each pressure spring abuts against the intermediate frame 84, and the other end abuts against the locking frame 81, thereby applying an elastic force to the locking frame 81. A locking portion 481 extends from the end of the driven frame 48 near the intermediate frame 84. The locking portion 481 extends in a direction close to the intermediate frame 84.

[0059] Reference Figure 5 and Figure 6 The end of the locking frame 81 away from the intermediate frame 84 is located directly above the locking portion 481 and in the sliding path of the locking portion 481. The end of the locking frame 81 away from the intermediate frame 84 is bent upward so that when the locking portion 481 contacts the bent portion of the locking frame 81, the locking frame 81 is pushed to slide, thereby giving way to the locking portion 481.

[0060] Reference Figure 4 、 Figure 5 and Figure 6 In the initial state, that is, when the first base body 1 and the connecting frame 31 remain fixed (i.e., locked), the locking frame 81 is located directly above the locking portion 481. When the relevant personnel drives the rotating frame 442 to rotate using the key 4412, the rotating frame 442 drives the unlocking frame 443 to slide upward, so that the unlocking frame 443 gradually abuts against the driven frame 48, pushing the driven frame 48 to slide upward, so that the driven frame 48 gradually abuts against the bottom end of the lock tongue 41, pushing the bottom end of the lock tongue 41 to rotate upward, so that the lock tongue 41 is located directly above the abutting frame 42.

[0061] Reference Figure 5 and Figure 6During this process, the locking portion 481 on the driven frame 48 abuts against the bent portion on the locking frame 81, thereby pushing the locking frame 81 to slide away from the driven frame 48, so that the locking frame 81 gives way to the locking portion 481. When the driven frame 48 pushes the lock tongue 41 to rotate and makes the lock tongue 41 located directly above the abutting frame 42, the locking portion 481 moves to the top of the locking frame 81. At this time, the locking frame 81 returns to its initial position under the elastic force of the elastic member 82 and abuts against the bottom end of the locking portion 481, locking the driven frame 48.

[0062] Reference Figure 4 、 Figure 5 and Figure 6 An extension frame 85 is also provided within the first base 1. The top of the extension frame 85 is fixedly connected to the inner wall of the first base 1, and the bottom of the extension frame 85 extends downward. The linkage assembly 83 includes a driving frame 831, a linkage frame 832, and a sleeve frame 833. The bottom end of the extension frame 85 is rotatably connected to the linkage frame 832 along the middle of its length via a pin.

[0063] Reference Figure 5 and Figure 6 There are two sleeve frames 833, each sleeved on the top of the linkage frame 832 and slidably connected to the linkage frame 832. Each sleeve frame 833 slides in the longitudinal direction of the linkage frame 832. Each sleeve frame 833 is rotationally connected to the locking frame 81 via a pin. A guide surface is formed at the bottom end of each linkage frame 832.

[0064] Reference Figure 4 and Figure 5 The inner wall of the connecting frame 31 is also provided with a protruding frame 86, which is fixedly connected to the connecting frame 31. The driving frame 831 is located on the side of the linkage frame 832 away from the driven frame 48. A guide surface is provided on the top of the driving frame 831. The bottom end of the driving frame 831 extends downward and passes through the protruding frame 86, slidingly connected to the protruding frame 86. The sliding direction of the driving frame 831 is the same as that of the driven frame 48. Two return springs 87 are also mounted on the driving frame 831. The top end of each return spring 87 abuts the bottom end of the top end of the driving frame 831, and the other end abuts the top end of the protruding frame 86.

[0065] Reference Figure 4 、 Figure 5 and Figure 6In the initial state, that is, when the connecting frame 31 is not mounted on the first base body 1, the locking frame 81 is located at the end of its sliding path closest to the unlocking frame 443 and abuts against the side wall of the driven frame 48. At this time, the bottom end of the linkage frame 832 is tilted away from the driven frame 48. As the connecting frame 31 is gradually mounted on the first base body 1, the abutting frame 42 on the connecting frame 31 gradually abuts against the bottom wall of the lock tongue 41, thereby forcing the lock tongue 41 to give way and rotate.

[0066] Reference Figure 4 、 Figure 5 and Figure 6 During this process, the guide surface at the top of the driving frame 831 gradually abuts against the guide surface at the bottom of the linkage frame 832. At this point, because the locking frame 81 is already at the end of its sliding path closest to the unlocking frame 443 and abuts against the side wall of the driven frame 48, the linkage frame 832 maintains its current position, and the driving frame 831 slides downward, thereby giving way to the linkage frame 832. When the connecting frame 31 is completely mounted on the first base 1, the driving frame 831 moves to the side of the linkage frame 832 away from the unlocking frame 443. At this time, the slide rail 7 is located between the two abutting frames 42.

[0067] Reference Figure 4 、 Figure 5 and Figure 6 When the connecting frame 31 needs to be disassembled, the relevant personnel rotate the key 4412, causing the rotating frame 442 to drive the unlocking frame 443 to slide upward. The unlocking frame 443 pushes the driven frame 48 to slide upward, so that the driven frame 48 contacts the lock tongue 41, pushing the lock tongue 41 to rotate. During this process, the locking portion 481 on the driven frame 48 gradually abuts against the curved portion on the locking frame 81, pushing the lock frame 81 to slide and give way to the driven frame 48. After that, the key 4412 is rotated back, causing the unlocking frame 443 to return to its original position.

[0068] Reference Figure 5 and Figure 6 When the lock tongue 41 rotates to be completely located above the abutment frame 42, the locking portion 481 on the driven frame 48 moves to be directly above the locking frame 81. At this time, the locking frame 81 returns to its initial position under the elastic force of the elastic member 82, so that its top end abuts against the bottom end of the locking portion 481, thereby locking the driven frame 48 and keeping the driven frame 48 and the lock tongue 41 in their current positions.

[0069] Reference Figure 4 、 Figure 5 and Figure 6Then, the connecting frame 31 is rotated to gradually separate from the first base 1. During this process, when the abutting frame 42 moves to the position directly below the locking tongue 41, the top of the driving frame 831 gradually abuts against the linkage frame 832, causing the bottom of the linkage frame 832 to be driven, thereby causing the linkage frame 832 to rotate. The rotation of the linkage frame 832 drives the sleeve frame 833 to move, thereby causing the locking frame 81 to slide away from the driven frame 48 and gradually disengage from the locking portion 481 on the driven frame 48.

[0070] Reference Figure 4 、 Figure 5 and Figure 6 When the locking frame 81 is completely disengaged from the locking portion 481 on the driven frame 48, the driven frame 48 slides downward under its own weight and the push of the lock tongue 41 and returns to its initial position, causing the lock tongue 41 to rotate downward. Thereafter, the driving frame 831 is released from its contact with the linkage frame 832, and the locking frame 81, under the elastic force of the return spring 87, returns to its initial position for the next use. Finally, the connecting frame 31 continues to rotate until it is completely disengaged from the first base 1.

[0071] The implementation principle of the center column structure for double doors in Example 2 of the present application is as follows: Referring to the figure, when the connecting frame 31 needs to be disassembled, the relevant personnel turns the key 4412, so that the rotating frame 442 drives the driven frame 48 to slide upward through the unlocking frame 443, so that the driven frame 48 contacts the lock tongue 41, pushing the lock tongue 41 to rotate. When the lock tongue 41 rotates to be completely above the abutting frame 42, the top end of the locking frame 81 abuts against the bottom end of the locking portion 481, locking the driven frame 48, so that the driven frame 48 and the lock tongue 41 maintain their current positions.

[0072] Then, the relevant personnel rotate the connecting frame 31 again, causing the connecting frame 31 to gradually separate from the first base 1. During this process, when the abutting frame 42 moves to directly below the lock tongue 41, the driving frame 831 and the linkage frame 832 abut each other, causing the linkage frame 832 to rotate, causing the sleeve frame 833 to move, and then causing the locking frame 81 to gradually disengage from the locking portion 481 on the driven frame 48. When the locking frame 81 is completely disengaged from the locking portion 481 on the driven frame 48, the driven frame 48 slides downward and returns to its initial position, causing the lock tongue 41 to rotate downward. Thereafter, the driving frame 831 is disengaged from the abutment state with the linkage frame 832, and the locking frame 81 returns to its initial position for the next use. Finally, the connecting frame 31 is further rotated, causing the connecting frame 31 to completely separate from the first base 1.

[0073] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A center column structure for double doors, characterized by: The invention comprises a first base body (1) and a second base body (2), wherein the first base body (1) is used to be connected to the top end of the door frame, and the second base body (2) is used to be connected to the bottom end of the door frame. An abutting column (3) is further provided between the first base body (1) and the second base body (2), and the abutting column (3) is used to abut against the intersection of the two door bodies. The bottom end of the abutting column (3) is sleeved on the second base body (2). A locking mechanism (4) is provided on the first base body (1), and the locking mechanism (4) is used to provide a fixed connection between the first base body (1) and the abutting column (3). A clearance groove (311) is provided on one side of the top end of the abutting column (3), and the abutting column (3) is sleeved on the first seat (1) through the clearance groove (311). The locking mechanism (4) comprises a locking tongue (41) and an abutting frame (42). The end of the locking tongue (41) away from the clearance groove (311) is rotatably connected to the first seat (1), and the abutting frame (42) is arranged at the top end of the abutting column (3). The end of the locking tongue (41) close to the clearance groove (311) is located on the displacement path of the abutting frame (42) in the process of the abutting column (3) and the abutting column (3) being separated from the first seat (1). The locking mechanism (4) further comprises an unlocking assembly (44), the unlocking assembly (44) comprising an unlocking member (441), a rotating frame (442) and an unlocking frame (443), the rotating frame (442) being rotatably connected to the abutting column (3), the unlocking frame (443) being slidably connected to the abutting column (3), the locking tongue (41) being located on a sliding path of the unlocking frame (443), an abutting portion (4421) being provided on one end of the rotating frame (442), the abutting portion (4421) abutting against one end of the unlocking frame (443) away from the locking tongue (41), and the unlocking member (441) being used to drive the rotating frame (442) to rotate; A driven frame (48) is further provided in the first base (1), the driven frame (48) is slidably connected to the first base (1), and the sliding direction of the driven frame (48) is the same as that of the unlocking frame (443), the driven frame (48) is located on the sliding path of the unlocking frame (443), the locking tongue (41) is located on the sliding path of the driven frame (48), and the unlocking frame (443) pushes the locking tongue (41) to rotate through the driven frame (48). A locking mechanism (8) is further provided on the first base (1), and the locking mechanism (8) is used to lock the driven frame (48) when the driven frame (48) pushes the locking tongue (41) to rotate to release the abutment state with the abutment frame (42).

2. The center column structure for a double door according to claim 1, characterized in that: The locking mechanism (8) includes a locking frame (81), an elastic member (82) and a linkage assembly (83). The locking frame (81) is slidably connected to the first base (1). The sliding direction of the locking frame (81) is perpendicular to the sliding direction of the driven frame (48). After the driven frame (48) reaches a specified position, the locking frame (81) is used to abut against the bottom end of the driven frame (48) through its own top end to lock the driven frame (48). The elastic member (82) is used to allow the locking frame (81) to continuously abut against the driven frame (48). The abutting column (3) drives the locking frame (81) to return to its initial position through the linkage assembly (83).

3. The center column structure for a double door according to claim 2, characterized in that: The linkage assembly (83) includes a driving frame (831), a linkage frame (832) and a sleeve frame (833); the driving frame (831) is connected to the abutting column (3); the middle part of the linkage frame (832) is rotatably connected to the first seat body (1); the bottom end of the linkage frame (832) is located on the displacement path of the driving frame (831); the sleeve frame (833) is sleeved on the top end of the linkage frame (832) and is slidably connected to the linkage frame (832); and the sleeve frame (833) is rotatably connected to the locking frame (81).

4. The center column structure for a double door according to claim 1, characterized in that: The unlocking frame (443) is also provided with a return spring (46), one end of the return spring (46) abuts against the inner wall of the abutting column (3), and the other end abuts against an end of the unlocking frame (443) close to the lock tongue (41).

5. The center column structure for a double door according to claim 1, characterized in that: The unlocking member (441) includes a lock head (4411) and a key (4412). The lock head (4411) is installed on the abutting column (3). The lock head (4411) is used to drive the rotating frame (442) to rotate, and the key (4412) is used to drive the lock head (4411) to work.

6. The center column structure for a double door according to claim 1, characterized in that: A limiting frame (47) is further provided in the abutting column (3), a limiting slot (6) is provided on the unlocking frame (443), the extending direction of the limiting slot (6) is the sliding direction of the unlocking frame (443), and the limiting frame (47) is inserted into the limiting slot (6).

7. The center column structure for a double door according to claim 1, characterized in that: The abutting column (3) comprises a connecting frame (31) and an additional frame (32); the connecting frame (31) is sleeved on the first seat body (1); the connecting frame (31) is connected to the additional frame (32); and the additional frame (32) is sleeved on the second seat body (2).

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