A magnetic door pin

Abstract

The present application provides a magnetic door pin, comprising: a pin shell, a pin body, an operating mechanism and an auxiliary mechanism; the pin body is sleeved in the pin shell, and comprises a pin tongue, a transmission member, a pin body and a spring member abutting against the back plate of the pin shell; there is a first magnetic attraction force between the pin tongue and the pin body, and a second magnetic attraction force between the pin tongue and the magnet of the door frame buckle box, the first magnetic attraction force is smaller than the second magnetic attraction force, so as to drive the pin tongue to move relative to the pin body along the long axis direction of the pin body within a first stroke range under the action of the magnetic attraction force; the operating mechanism is connected to the pin body to drive the pin body to move along its own long axis direction within a second stroke range; the spring member brings an elastic feel to the movement of the operating mechanism, and resets the pin body to the second starting end of the second stroke range when the operating mechanism is not subjected to external force. The door pin provided by the present invention achieves a similar user experience and functions other than the key function as a magnetic door lock, and can be used to replace the magnetic door lock in situations where a key function is not required.

Description

Technical Field

[0001] The present application relates to the field of building accessories, and in particular to a magnetic door pin. Background Art

[0002] Magnetic door locks are currently popular for wooden doors in buildings. However, the key is of little use to certain users, such as most homeowners. Door handles often malfunction over time, locking people inside. One solution to this problem is to replace the lock with a latch when a key isn't needed. However, existing latches are simple and inadequate for everyday use. While there are latches that can be opened and closed from both inside and outside, these lack the user experience of magnetic door locks, making them difficult to attract consumers and manufacturers, hindering product conversion. Summary of the Invention

[0003] In response to the above problems, the present invention provides a magnetic door pin, which has a similar user experience to a magnetic door lock and functions other than a key function, so that it can replace the magnetic door lock in situations where a key function is not required.

[0004] The technical solution of the present invention is:

[0005] A magnetic door pin, comprising: a pin housing, a pin body, an operating mechanism and an auxiliary mechanism: the operating mechanism comprises a front handle and a rear handle, and the auxiliary mechanism comprises a front panel and a rear panel; wherein,

[0006] The pin body is sleeved in the pin housing and includes a pin tongue, a transmission member, a pin body and a spring member arranged in sequence along the axial direction, and the spring member abuts against the back plate of the pin housing;

[0007] A first magnetic attraction is formed between the pin tongue and the pin body, and a second magnetic attraction is formed between the pin tongue and the magnet of the door frame buckle box. The first magnetic attraction is smaller than the second magnetic attraction, so that the pin tongue is driven by the magnetic attraction to move relative to the pin body along the long axis of the pin body within a first range of travel. The operating mechanism is connected to the pin body to drive the pin body to move along its own long axis within a second range of travel.

[0008] When the pin tongue is located at the first starting end of the first travel range under the action of the first magnetic attraction force, and the pin body is located at the second starting end of the second travel range, the pin tongue is flush with the surface of the latch opening of the side panel of the pin housing, so as to be in an unlatched state; when the pin tongue is located at the first ending end of the first travel range under the action of the second magnetic attraction force, the pin tongue extends out of the latch opening of the side panel of the pin housing, so as to be in a latched state;

[0009] When the pin body moves toward the second end end of the second stroke range under the action of the operating mechanism, the pin tongue is driven back into the latch opening of the side panel of the pin housing by the transmission member to realize the unlocking operation; when the operating mechanism is released, the pin body is reset to the second starting end under the elastic action of the spring member, and is adsorbed together with the pin tongue by the first magnetic attraction force.

[0010] As one of the preferred solutions, the cross-section of the axial front portion of the pin body is L-shaped or U-shaped, the bottom edge of the L-shaped or U-shaped shape serves as the front end portion of the pin body, and the long side perpendicular to the bottom edge is connected to the axial rear portion of the pin body; one end of the transmission member is connected to the pin tongue, and the other end extends through the front end portion of the pin body and into the gap formed by the L-shaped or U-shaped shape;

[0011] The axial length of the neutral position can accommodate a first travel range of the transmission member.

[0012] As one of the preferred solutions, a first positioning column is provided at the end of the pin body, a second positioning column is provided on the back plate of the pin housing, and both ends of the spring member are fixed on the first positioning column and the second positioning column respectively.

[0013] As one of the preferred solutions, an observation port is provided at a position of the pin housing corresponding to the spring member.

[0014] As one of the preferred solutions, the front handle passes through the pin housing and is connected to the front side of the pin body; the rear handle passes through the pin housing and is connected to the rear side of the pin body;

[0015] Wherein, the rear handle movably passes through the pin housing and the pin body, so that when the pin body is located at the second starting end, it can slide along a direction perpendicular to the long axis of the pin body.

[0016] As one of the preferred solutions, the front side of the pin body is provided with a first groove and a second groove, and the rear side is provided with a third groove, the position of the third groove is opposite to the position of the first groove, the front handle passes through the first groove and the third groove in sequence and is connected to the pin body, and the rear handle is movably provided in the second groove and connected to the pin body.

[0017] As one of the preferred solutions, the front panel and the rear panel are both provided with through holes, and the through holes are used to allow corresponding parts of the operating mechanism to pass through;

[0018] Wherein, a front open ring sleeve is provided on a side of the front panel close to the pin housing; a rear open ring sleeve is provided on a side of the rear panel close to the pin housing.

[0019] As one of the preferred options, a front opening is provided on the front side surface of the pin housing, the axial length of the front opening is adapted to the second stroke range of the front handle, and accommodates the sliding stroke of the rear handle in the depth direction; a rear opening is provided on the rear side surface of the pin housing, the axial length of the rear opening can accommodate the second stroke range of the rear handle and the installation size of the fixing bolt of the front handle.

[0020] As one of the preferred solutions, the height of the back plate of the pin housing is the same as the height of the housing of the pin housing, and the width of the back plate is not less than the vertical distance from the front end face of the front opening to the rear end face of the rear opening.

[0021] As one of the preferred solutions, a buffer pad is provided on the side where the pin tongue, the transmission member, and the front handle contact the corresponding parts to provide buffer protection and silence.

[0022] Compared with the prior art, this application has the following advantages:

[0023] The present invention proposes a magnetic door pin, comprising a pin shell, a pin body, an operating mechanism and an auxiliary mechanism: the operating mechanism comprises a front handle and a rear handle, and the auxiliary mechanism comprises a front panel and a rear panel; wherein the pin body is sleeved in the pin shell, and comprises a pin tongue, a transmission part, a pin body and a spring part arranged in sequence along the axial direction, and the spring part abuts against the back plate of the pin shell; wherein a first magnetic attraction force is provided between the pin tongue and the pin body, and a second magnetic attraction force is provided between the pin tongue and the magnet of the door frame buckle box, and the first magnetic attraction force is smaller than the second magnetic attraction force, so as to drive the pin tongue to move relative to the pin body within a first stroke range along the long axis direction of the pin body under the action of the magnetic attraction force; the operating mechanism is connected to the pin body to drive the pin body to move within a second stroke range along its own long axis direction; when the pin tongue is in the When the pin body is located at the first starting end of the first stroke range under the action of the first magnetic attraction force, and the pin body is located at the second starting end of the second stroke range, the pin tongue is flush with the surface of the latch opening of the side panel of the pin housing, so as to be in an unlatched state; when the pin tongue is located at the first terminal end of the first stroke range under the action of the second magnetic attraction force, the pin tongue extends out of the latch opening of the side panel of the pin housing, so as to be in an upper latch state; when the pin body moves toward the second terminal end of the second stroke range under the action of the operating mechanism, the pin tongue is driven back into the latch opening of the side panel of the pin housing by the transmission member to realize the unlatching operation; when the operating mechanism is released, the pin body is reset to the second starting end under the elastic action of the spring member, and is adsorbed together with the pin tongue by the first magnetic attraction force.

[0024] By adopting the technical solution of the present application, the pin housing and pin body of the embodiment of the present invention are concealed in the side slot of the wooden door. The pin body contains a movable pin tongue, which is automatically in the latched state by the magnetic principle. The operating mechanism can be used to realize the latching on both the inside and outside of the door with an elastic feel. After the door is opened, the handle can be automatically reset under the action of the spring member, and the first magnetic force is used to keep the pin tongue flush with the surface of the latch opening of the side panel of the pin housing without being exposed. The user experience is similar to that of a magnetic door lock, with a simple and reliable force transmission mechanism and no hidden danger of back-locking. It is like a magnetic lock that does not require a key and has no hidden danger of back-locking. It can be used to replace magnetic door locks in situations where a key function is not required. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for the description of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 This is a schematic diagram of the overall structure of the magnetic door pin according to an embodiment of the present application;

[0027] Figure 2 This is a schematic diagram of the overall structure of the magnetic door pin according to another embodiment of the present application, excluding the front and rear panels;

[0028] Figure 3 This is a structural diagram of a pin housing according to another embodiment of the present application;

[0029] Figure 4 is a front structural schematic diagram of a pin body according to another embodiment of the present application;

[0030] Figure 5 is a rear structural schematic diagram of a pin body according to another embodiment of the present application;

[0031] Figure 6 This is a schematic diagram of the assembly of the pin body and the front and rear handles according to another embodiment of the present application;

[0032] Figure 7 This is a diagram showing a state in which the pin body is located at the second starting end of the second stroke range and the rear handle slides out in a direction perpendicular to the long axis of the pin body to achieve braking of the pin body according to another embodiment of the present application;

[0033] Figure 8 This is a schematic diagram of the effect of the magnetic door pin described in one embodiment of the present application being installed on a wooden door.

[0034] Description of reference numerals:

[0035] 1. Pin housing; 11. Side panel; 111. Latch; 12. Housing; 13. Front opening; 14. Rear

[0036] Face opening; 15. Observation port; 16. Back panel; 161. Second positioning column; 2. Pin body; 21. Pin tongue; 22. Transmission bolt; 23. Pin body; 211. First buffer pad; 221. Second buffer pad; 231. Front end; 232. First groove; 233. Second groove; 234. Third groove; 235. First positioning column; 24. Compression spring; 3. Front handle; 31. Front handle body; 32. Fixing bolt; 311. Connecting rod; 4. Rear handle; 41. Rear handle body; 42. Connecting bolt; 5. Front panel; 51. Front opening ring; 6. Rear panel; 61. Rear opening ring; 7. Wooden door. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0038] Reference Figures 1-8 As shown, Figure 1 An overall assembly view of an embodiment of the present invention is shown, which illustrates a perspective viewed from the outside of a door. Figure 2 A rear perspective view of the embodiment of the present invention without the front panel and the rear panel is shown, and the perspective is from the inside of the door. Figure 3 A front perspective view of a pin housing of the present invention is shown. Figure 4 A front perspective view of the pin body of the present invention is shown, wherein the front portion of the pin body is L-shaped. Figure 5 A rear perspective view of the pin body of the present invention is shown, showing the U-shaped front portion of the pin body. Figure 6 A schematic diagram showing the connection between the pin body and the front handle and the rear handle of the present invention is shown. Figure 7 A schematic diagram showing a state in which the pin body is at the second starting end of its second travel range and the rear handle slides out in a direction perpendicular to the long axis of the pin body to brake the pin body; Figure 8 A schematic diagram showing the effect of the magnetic door pin of the present invention being installed on a wooden door is shown.

[0039] like Figure 1 As shown, the present invention provides a magnetic door pin, comprising: a pin housing 1, a pin body 2, an operating mechanism and an auxiliary mechanism: the operating mechanism comprises a front handle 3 and a rear handle 4, and the auxiliary mechanism comprises a front panel 5 and a rear panel 6; please refer to Figure 2-Figure 5The pin body 2 is sleeved in the pin housing 1 and includes a pin tongue 21, a transmission member, a pin body 23 and a spring member arranged in sequence along the axial direction, and the spring member abuts against the back plate 16 of the pin housing 1; wherein, a first magnetic attraction force exists between the pin tongue 21 and the pin body 23, and a second magnetic attraction force exists between the pin tongue 21 and the magnet of the door frame buckle box, and the first magnetic attraction force is smaller than the second magnetic attraction force, so that the pin tongue 21 is driven by the magnetic attraction force to move relative to the pin body 23 along the long axis direction of the pin body 23 within a first stroke range; the operating mechanism is connected to the pin body 23 to drive the pin body 23 to move along its own long axis direction within a second stroke range;

[0040] When the pin tongue 21 is located at the first starting end of the first stroke range under the action of the first magnetic attraction force, and the pin body 23 is located at the second starting end of the second stroke range, the pin tongue 21 is flush with the surface of the latch opening 111 of the side panel 11 of the pin housing 1, so as to be in an unlatched state; when the pin tongue 21 is located at the first end end of the first stroke range under the action of the second magnetic attraction force, the pin tongue 21 extends out of the latch opening 111 of the side panel 11 of the pin housing 1, so as to be in an upper latch state; when the pin body 23 moves toward the second end end of the second stroke range under the action of the operating mechanism, the pin tongue 21 is driven back into the latch opening 111 of the side panel 11 of the pin housing 1 by the transmission member to realize the unlatching operation; when the operating mechanism is released, the pin body 23 is reset to the second starting end under the elastic action of the spring member, and is adsorbed together with the pin tongue by the first magnetic attraction force.

[0041] Specifically, in this embodiment, the pin housing 1 includes a side panel 11, a housing 12 and a back panel 16. The side panel 11 is provided with a latch 111 connected to the housing 12. The operating mechanism can be understood as a power mechanism that unlocks the door from inside and outside by manpower. Figure 1 For example, the axial direction can be regarded as the direction from left to right, that is, the direction from the side panel 11 to the back panel 16, and the front-to-back direction can be regarded as the direction from the outside of the door to the inside of the door.

[0042] Specifically, the pin body 2 is composed of a pin tongue 21, a transmission member, a pin body 23 and a spring member from left to right. Preferably, the transmission member is a transmission bolt 22; and the spring member is a compression spring 24. A first buffer pad 211 is fixedly installed on the right end face of the pin tongue 21, that is, on the side surface facing the pin body 23. A screw hole is opened on the right end face of the pin tongue 21, and the specifications match the screw rod of the transmission bolt 22. The first buffer pad 211 also has a hole opened at the corresponding position to install the transmission bolt 22. When the transmission bolt 22 is installed in place, it becomes a whole with the pin tongue 21. A second buffer pad 221 is fixedly installed on the inner side of the bolt head of the transmission bolt 22. There is a section of exposed screw rod between the first buffer pad 211 of the pin tongue 21 and the second buffer pad 221 of the transmission bolt 22, which is preferably smooth, to achieve relative sliding between the pin tongue 21 and the pin body 23.

[0043] In some embodiments, the length of the exposed screw between the first buffer pad 211 and the second buffer pad 221 is equal to the first travel range of the pin tongue 21 relative to the pin body 23 plus the thickness of the front end portion 231 of the pin body 23 .

[0044] In some embodiments, the head of the driving bolt 22 is preferably circular and has no directionality after installation.

[0045] More specifically, the pin body 2 is mounted within the pin housing 1. The right end of the compression spring 24 of the pin body 2 is sheathed on a second positioning post 161 protruding from the inner surface of the back plate 16 of the pin housing 1 and supported on the inner surface of the back plate 16. The pin body 23 is bolted to the operating mechanism. Driven by the operating mechanism, the pin body 23 can slide along its longitudinal axis within the pin housing 1. The second travel range of the pin body 23 can be understood as the movable distance of the operating mechanism. This second travel range of the pin body 23 is not less than the first travel range of the pin tongue 21 relative to the pin body 23.

[0046] The pin tongue 21 is a magnet or contains a magnet. There is a magnetic attraction between the pin body 23 and the pin tongue 21. There is no magnetic force between the drive bolt 22 and the pin tongue 21, and there is no magnetic force between the pin housing 1 and the pin body 2. Thus:

[0047] When the door is open and unaffected by external forces, the pin body 23 is positioned at the second starting end of its second travel range due to the action of the compression spring 24. The pin tongue 21, due to the magnetic attraction between the pin tongue 21 and the pin body 23, stops at the first starting end of its first travel range relative to the pin body 23. At this point, the left end face of the pin tongue 21 is flush with the latch opening 111 of the side panel 11 of the pin housing 1. When the door is closed, the pin tongue 21 engages with the magnet built into the door frame buckle. The second magnetic attraction between the two acts stronger than the first magnetic attraction between the pin tongue 21 and the pin body 23, causing the pin tongue 21 to slide out of the pin housing 1 and reach the first ending end of its first travel range relative to the pin body 23, thereby achieving automatic latching.

[0048] When the door needs to be opened, the operating mechanism is pulled to move the pin body 23 toward the second end of its second travel range. The front end portion 231 of the pin body 23 pulls the combination of the pin tongue 21 and the driving bolt 22, causing the pin tongue 21 to return to the latch opening 111 of the side panel 11 of the pin housing 1 to achieve unlatching. After the door is opened, the operating mechanism is released, and the pin body 23 is acted upon by the compression spring 24 to return to the starting end of its second travel range. The pin tongue 21 is stopped at the first starting end of the first travel range relative to the pin body 23 by the first magnetic attraction between the pin tongue 21 and the pin body 23. The left end surface of the pin tongue 21 remains flush with the latch opening 111 of the side panel 11 of the pin housing 1, thus returning to the unlatched state and preparing for the next unlocking of the latched state.

[0049] Please refer again Figure 4 and Figure 5 As a specific explanation of this embodiment, the axial front portion of the pin body 23 is L-shaped or U-shaped when viewed from the side. The bottom edge of the L-shape or U-shape is the front end portion 231 of the pin body 23, and is connected to the axial rear portion of the pin body 23 through the long side perpendicular to the bottom edge. The long side of the L-shape is upward and the L-shaped opening is downward, or the long side of the L-shape is downward and the L-shaped opening is upward. Therefore, both the L-shaped and U-shaped approaches can be used on left-opening and right-opening doors.

[0050] Specifically, the front end portion 231 of the pin shank 23 is provided with an open slot, which corresponds in shape and location to the exposed shank portion of the drive bolt 22, but is slightly larger in size to prevent friction during operation. After installation, the exposed shank of the drive bolt 22 passes through the open slot, while the head of the drive bolt 22 and its second cushioning pad 221 are positioned within the gap between the L-shaped or U-shaped portion of the pin shank 23.

[0051] As an extension of this embodiment, the transmission bolt 22 can also be replaced with other forms of transmission parts, one end of which is fixedly connected to the pin tongue 21, and the other end is slidably connected to the pin body 23. The sliding range is limited by the front end portion 231 of the pin body 23. The front end portion 231 adopts a shape that can overlap with the transmission part to transmit force, which also falls within the technical design scope of the present invention.

[0052] It will be understood that the combination of the pin tongue 21 and the drive bolt 22 can slide back and forth within the pin housing 1 along the long axis of the pin shank 23 relative to the pin shank 23 within a first travel range. The first starting point of the first travel range is defined by the first buffer pad 211 on the right end face of the pin tongue 21 abutting against the left surface of the front end portion 231 of the pin shank 23, and the first ending point of the first travel range is defined by the second buffer pad 221 on the inner side of the bolt head of the drive bolt 22 abutting against the right surface of the front end portion 231 of the pin shank 23. The sliding travel of the bolt head of the drive bolt 22 and its second buffer pad 221, i.e., the first travel range, can be accommodated within the axial length range of the L-shaped or U-shaped gap of the pin shank 23.

[0053] As a specific explanation of this embodiment, the second sliding stroke can be defined by the front opening 13 of the pin housing 1 and the connecting rod 311 of the front handle 3 of the operating mechanism. The operating mechanism includes the front handle 3 and the rear handle 4. The front handle 3 is located on the outside of the door, and the rear handle 4 is located on the inside of the door. Therefore, the door can be opened from the inside or outside using the rear handle 4 or the front handle 3. Figure 2 and Figure 6 The rear handle 4 is composed of a rear handle body 41 and a connecting bolt 42; the front handle 3 is composed of a front handle body 31 and a fixing bolt 32. The front handle body 31 includes a connecting rod 311, and the connecting rod 311 includes buffer pads on its left and right sides.

[0054] For further explanation of this embodiment, please refer to Figure 2 The rear side of the pin housing 1 has a rear opening 14, the shape and size of which can accommodate the stroke of the screw of the connecting bolt 42 of the rear handle 4, and the installation size of the bolt head of the fixing bolt 32 of the front handle 3 when the pin body 23 is at the second end of its second stroke range. Please continue to read Figure 3 The front side of the pin housing 1 has a front opening 13. The shape and size of the front opening 13 match the stroke of the connecting rod 311 of the front handle 3. The depth direction can accommodate the bolt head of the connecting bolt 42 of the rear handle 4, that is, the sliding block, which slides out in a direction perpendicular to the long axis of the pin body 23.

[0055] Therefore, the second starting point of the second stroke range is where the buffer pad on the left side of the connecting rod 311 of the front handle 3 abuts against the left side of the front opening 13 of the pin housing 1, and the second ending point of the second stroke range is where the buffer pad on the right side of the connecting rod 311 of the front handle 3 abuts against the right side of the front opening 13 of the pin housing 1. Thus, the second stroke range is the movable distance of the front handle 3 and also the working stroke of the compression spring 24.

[0056] In a further technical solution, the front side surface of the axial rear part of the pin body 23 has a first groove 232 and a second groove 233, and the rear side surface has a third groove 234. The first groove 232 and the third groove 234 are used to install the front handle 3, and the second groove 233 is used to install the rear handle 4.

[0057] Specifically, the rear handle 4 is connected to the pin body 23 by a specific form of connecting bolt 42. The bolt head of the connecting bolt 42 serves as a sliding block and is placed in the second groove 233 on the front side of the pin body 23. The shape and size are consistent with the second groove 233. The other end of the connecting bolt 42 is a threaded circular connecting rod 311, which passes through the circular hole at the bottom of the second groove 233 and is connected to the threaded mouth of the rear handle body 41 of the rear handle 4.

[0058] More specifically, the end face shape and size of the connecting rod 311 of the front handle 3 are consistent with the first groove 232 on the front side of the pin body 23, and the third groove 234 can accommodate the installation size of the bolt head of the fixing bolt 32 of the front handle 3. The screw specifications of the fixing bolt 32 are consistent with the threaded mouth at the end of the connecting rod 311.

[0059] In some embodiments, the first groove 232 and the second groove 233 are preferably rectangular in shape, with a circular hole on the bottom of the first groove 232 extending through to the third groove 234 on the rear side of the pin body 23. The second groove 233 has a circular hole on the bottom of the second groove 233 extending through to the rear side of the pin body 23.

[0060] In combination with the above embodiment, the bolt head of the connecting bolt 42, i.e. the sliding block, is preferably in the shape of a cubic block, and the specification of the connecting screw rod matches the screw thread on the rear handle body 41. In combination with the above embodiment, the bolt head of the fixing bolt 32 is preferably in the shape of a circle, and has no directionality after installation. For example, Figure 6 As shown, the rear handle body 41 is preferably circular and has no directionality after installation.

[0061] In this embodiment, the rear handle 4 and the pin body 23 are not fixed to each other, and the rear handle 4 can slide in a direction perpendicular to the long axis of the pin body 23. When the pin body 23 is at the second starting end of its second travel range, the position of the sliding block of the rear handle 4 is exactly aligned with the rear half of the front opening 13 of the pin housing 1. Pressing the rear handle 4 can cause the sliding block to slide out in a direction perpendicular to the long axis of the pin body 23 and abut against the right side of the front opening 13 of the pin housing 1, thereby braking the pin body 23. Figure 6 As shown. At this point, the front handle 3 and rear handle 4 cannot move along the long axis of the pin 23, and the door pin is locked. To unlock, simply pull the rear handle 4 back, returning its sliding block to its original position. When the pin 23 is in any other position, the pin housing 1 prevents the sliding block of the rear handle 4 from sliding out in a direction perpendicular to the long axis of the pin 23.

[0062] As an illustration of this embodiment, according to the needs of certain occasions, the rear handle 4 can also be changed to a similar method as the front handle 3, and its locking function for the door pin can be cancelled.

[0063] In another embodiment, please refer to Figure 1 The present invention also includes a front panel 5 and a rear panel 6. The front panel 5 is provided with a through hole, the shape and size of which match the stroke of the connecting rod 311 of the front handle 3, and a front open ring sleeve 51 is provided on the back. The rear panel 6 is provided with a through hole, which can accommodate the stroke of the screw of the connecting bolt 42 of the rear handle 4, and a rear open ring sleeve 61 is provided on the back. In this embodiment, the front panel 5 and the rear panel 6 are separate parts, which play a decorative role and an auxiliary limiting role. At the same time, the rear panel 6 also plays the role of limiting the sliding stroke of the rear handle 4 in the direction perpendicular to the long axis of the pin body 23. It is worth mentioning that no magnetic force will be generated between the front panel 5 and the rear panel 6 and the pin body 2.

[0064] In another embodiment, a raised first positioning post 235 is provided on the right end surface of the pin body 23. The shape and size of the first positioning post 235 match the left end of the compression spring 24 and are preferably located at the center of the right end surface of the pin body 23 for positioning and installing the left end of the compression spring 24. A raised second positioning post 161 is provided on the inner surface of the back plate 16. The shape, size, and location of the first positioning post 235 correspond to the right end of the compression spring 24.

[0065] Also, please continue reading Figure 3 An observation port 15 is provided on the front side of the pin housing 1. The observation port 15 is used to observe and assist in positioning the right end of the compression spring 24 when installing the pin body 2. The shape, size and position of the observation port 15 are based on the convenience of observation and auxiliary operation.

[0066] In some embodiments, the height of the back panel 16 is the same as that of the shell 12, and the width is not less than the vertical distance from the front end face of the front opening 13 to the rear end face of the rear opening 14. The width and height of the back panel 16 match the width and height of the groove on the side of the wooden door 7, which serves as a positioning function during installation.

[0067] In combination with the above embodiments, the right end face of the pin tongue 21, the inner side face of the bolt head of the transmission bolt 22, and the left and right side faces of the connecting rod 311 of the front handle 3 are all installed with buffer pads, and the structural dimensions are controlled at the same time to ensure that the rear handle 4 does not touch other parts within the stroke range, including between the screw of the connecting bolt 42 of the rear handle 4 and the two side faces of the through hole of the rear panel 6, and between the screw of the connecting bolt 42 of the rear handle 4 and the side face of the rear opening 14 of the pin housing 1, thereby ensuring comfort of use.

[0068] In combination with the above embodiments, the installation steps of a specific embodiment of the present invention are as follows:

[0069] First, a groove is cut on the side of the wooden door 7, and then openings are opened on the front and rear surfaces of the wooden door 7, which are connected to the grooves on the side to accommodate the pin housing 1, the front panel 5 and the rear panel 6 respectively.

[0070] The pin body 2 is assembled into the pin housing 1 as follows: first, install the drive bolt 22 onto the pin tongue 21, ensuring that the head of the drive bolt 22 enters the L-shaped or U-shaped gap in the pin body 23 and the exposed screw portion passes through the open slot in the front end portion 231. This aligns the pin tongue 21 with the front end portion 231 due to the magnetic attraction between the pin tongue 21 and the pin body 23. Next, the left end of the compression spring 24 is inserted into the first positioning post 235 of the pin body 23. The pin body 23 transmits the magnetic attraction of the pin tongue 21, causing the left end of the compression spring 24 to adhere to the right end surface of the pin body 23. Alternatively, the pin body 2 may be erected with the right end of the pin body 23 facing upward, the left end of the compression spring 24 may be sleeved onto the first positioning post 235, and the pin body 2 may be vertically inserted into the latch 111 of the side panel 11 of the pin housing 1, so that the right end of the compression spring 24 may be sleeved onto the second positioning post 161 and supported on the back plate 16. The latter approach does not require sufficient magnetic attraction between the compression spring 24 and the pin body 23.

[0071] Put the pin housing 1 into the side slot of the wooden door 7 and fix the side panel 11 with screws after it is in place.

[0072] Install the front handle 3 from the through hole of the front panel 5 and the opening on the rear surface of the wooden door 7, so that the end face of the connecting rod 311 of the front handle body 31 enters the first groove 232 of the pin body 23, and the bolt head of the fixing bolt 32 completely enters the third groove 234 of the pin body 23 and is connected and fixed to the front handle body 31.

[0073] The rear handle 4 is installed through the through-hole of the rear panel 6 and the front opening of the wooden door 7, so that the head of the connecting bolt 42 completely enters the second groove 233 of the pin body 23. The screw rod passes through the circular hole at the bottom of the second groove 233 and extends out of the through-hole of the rear panel 6. The screw hole of the rear handle body 41 is screwed to the screw rod of the connecting bolt 42, and a certain distance is maintained between the end surface where the screw hole is located and the rear panel 6. This distance is the sliding travel of the rear handle 4 in a direction perpendicular to the long axis of the pin body 23. This travel is less than the depth of the second groove 233, so that the head of the connecting bolt 42, i.e., the sliding block, cannot completely slide out of the second groove 233, thereby ensuring the stability of the rear handle 4 and smooth sliding back and forth. The length of the connection between the rear handle body 41 and the connecting bolt 42 can vary depending on the thickness of the wooden door 7. Once in place, the set screw on the rear handle body 41 is used to secure the connecting bolt 42 to each other.

[0074] Specifically, the installation order of the front and rear handles and the front and rear panels is: first install the connecting bolts 42, then install the front panel 5, then install the front handle 3, then install the rear panel 6, and finally install the rear handle body 41.

[0075] A groove is cut on the side of the door frame of the wooden door 7 at a position corresponding to the left end of the pin tongue 21, and a buckle box and a buckle box panel with a built-in magnet that can accommodate the sliding stroke of the pin tongue 21 relative to the pin body 23 are installed. This part of the process is similar to the lock buckle of a magnetic door lock.

[0076] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0077] It should also be noted that, in this article, the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations, nor can they be understood as indicating or implying relative importance. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or terminal device.

[0078] The magnetic door pin provided by the present application is introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application, and the content of this specification should not be understood as limiting the present application. At the same time, for those skilled in the art, according to the present application, there will be different forms of changes in the specific implementation methods and application scopes. It is not necessary and impossible to list all implementation methods here, and the obvious changes or modifications derived therefrom are still within the scope of protection of the present application.

Claims

1. A magnetic door pin, characterized in that: include: Pin housing, pin body, operating mechanism and auxiliary mechanism: the operating mechanism includes a front handle and a rear handle, and the auxiliary mechanism includes a front panel and a rear panel; wherein, The pin body is sleeved in the pin housing and includes a pin tongue, a transmission member, a pin body and a spring member arranged in sequence along the axial direction, and the spring member abuts against the back plate of the pin housing; A first magnetic attraction is formed between the pin tongue and the pin body, and a second magnetic attraction is formed between the pin tongue and the magnet of the door frame buckle box. The first magnetic attraction is smaller than the second magnetic attraction, so that the pin tongue is driven by the magnetic attraction to move relative to the pin body along the long axis of the pin body within a first range of travel. The operating mechanism is connected to the pin body to drive the pin body to move along its own long axis within a second range of travel. When the pin tongue is located at the first starting end of the first travel range under the action of the first magnetic attraction force, and the pin body is located at the second starting end of the second travel range, the pin tongue is flush with the surface of the latch opening of the side panel of the pin housing, so as to be in an unlatched state; when the pin tongue is located at the first ending end of the first travel range under the action of the second magnetic attraction force, the pin tongue extends out of the latch opening of the side panel of the pin housing, so as to be in a latched state; When the pin body moves toward the second end end of the second stroke range under the action of the operating mechanism, the pin tongue is driven back into the latch opening of the side panel of the pin housing by the transmission member to realize the unlocking operation; when the operating mechanism is released, the pin body is reset to the second starting end under the elastic action of the spring member, and is adsorbed together with the pin tongue by the first magnetic attraction force.

2. A magnetic door pin according to claim 1, characterized in that: The cross-section of the axial front portion of the pin body is L-shaped or U-shaped, the bottom edge of the L-shaped or U-shaped shape serves as the front end portion of the pin body, and the long side perpendicular to the bottom edge is connected to the axial rear portion of the pin body; one end of the transmission member is connected to the pin tongue, and the other end extends through the front end portion of the pin body and enters the gap formed by the L-shaped or U-shaped shape; The axial length of the neutral position can accommodate a first travel range of the transmission member.

3. A magnetic door pin according to claim 1, characterized in that: A first positioning column is provided at the end of the pin body, a second positioning column is provided on the back plate of the pin housing, and both ends of the spring member are fixed on the first positioning column and the second positioning column respectively.

4. The magnetic door pin according to claim 1, characterized in that: The pin housing is provided with an observation port at a position corresponding to the spring component.

5. The magnetic door pin according to claim 1, characterized in that: The front handle passes through the pin housing and is connected to the front side of the pin body; the rear handle passes through the pin housing and is connected to the rear side of the pin body; Wherein, the rear handle movably passes through the pin housing and the pin body, so that when the pin body is located at the second starting end, it can slide along a direction perpendicular to the long axis of the pin body.

6. The magnetic door pin according to claim 5, characterized in that: The front side of the pin body is provided with a first groove and a second groove, and the rear side is provided with a third groove. The position of the third groove is opposite to that of the first groove. The front handle passes through the first groove and the third groove in sequence and is connected to the pin body. The rear handle is movably provided in the second groove and is connected to the pin body.

7. The magnetic door pin according to claim 1, characterized in that: The front panel and the rear panel are both provided with through holes, and the through holes are used to allow corresponding parts of the operating mechanism to pass through; Wherein, a front open ring sleeve is provided on a side of the front panel close to the pin housing; a rear open ring sleeve is provided on a side of the rear panel close to the pin housing.

8. The magnetic door pin according to claim 1, characterized in that: A front opening is provided on the front side surface of the pin housing, the axial length of the front opening is adapted to the second stroke range of the front handle, and accommodates the sliding stroke of the rear handle in the depth direction; A rear opening is provided on the rear side surface of the pin housing, and the axial length of the rear opening can accommodate the second stroke range of the rear handle and the installation size of the fixing bolt of the front handle.

9. The magnetic door pin according to claim 8, characterized in that: The height of the back plate of the pin housing is the same as the height of the housing of the pin housing, and the width of the back plate is not less than the vertical distance from the front end face of the front opening to the rear end face of the rear opening.

10. A magnetic door pin according to any one of claims 1 to 9, characterized in that: A buffer pad is provided on the side where the pin tongue, the transmission member and the front handle contact the corresponding parts.

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