A door opening and closing mechanism

Abstract

The present invention belongs to the technical field of door locks, and particularly refers to a door opening and closing mechanism, comprising a locking part and an unlocking part, wherein the locking part comprises a frame, wherein a rotatable lock tongue and a limiter are arranged in the frame, wherein a limiter spring is arranged between the limiter and the inner wall of the frame, wherein the limiter spring makes the limiter have a tendency to resist one end of the lock tongue located in the frame, wherein a torsion spring is connected between the lock tongue and the limiter, wherein a lock block and a push block which can extend out of the frame in sequence with the rotation of the lock tongue are formed on the lock tongue, wherein a notch is defined between the lock block and the push block, wherein an unlocking hole which penetrates the lock block is formed in the lock block, wherein an unlocking push rod which can push the limiter is arranged in the unlocking hole, wherein a reset spring is arranged on the unlocking push rod, wherein the reset spring makes the unlocking push rod have a tendency to move away from the limiter. Compared with a traditional door lock, the door opening mechanism optimizes the structure required for opening and closing the door, is easier to install and use, and also reduces the production cost.

Description

Technical Field

[0001] The invention belongs to the technical field of door locks and relates to a door opening and closing mechanism. Background Art

[0002] Existing door locks are usually installed on door panels and driven by a rotatable handle. The door is closed and opened by cooperating with a lock tongue of the door panel extending from the middle door lock and a lock slot installed on the door frame.

[0003] Traditional door locks have complex internal parts and are difficult to install, which usually increases the cost of production and use. In particular, for some indoor doors, it is often not suitable to use overly complex door locks, which easily complicates the opening and closing of the door.

[0004] In view of the above problems, a simplified door opening and closing mechanism can be designed. Summary of the invention

[0005] In view of the above problems, the present invention provides a door opening and closing mechanism, which simplifies the structure installed on the door panel and the door frame while realizing the door opening and closing function.

[0006] The object of the present invention is achieved in that:

[0007] The locking mechanism of claim 1, wherein the locking member is actuated by a spring which is adapted to move the locking member away from the locking member and to move the locking member toward the locking element, the locking member being adapted to move the locking member away from the locking element when the locking member is engaged with the locking member.

[0008] Furthermore, the frame is respectively connected with a first rotating shaft passing through the locking tongue and a second rotating shaft passing through the limiting member, the locking tongue rotates around the first rotating shaft, the limiting member rotates around the second rotating shaft, a connecting rod parallel to the second rotating shaft is formed on the locking tongue, and the torsion spring is connected between the connecting rod and the second rotating shaft.

[0009] Furthermore, a support seat is formed in the frame, the second rotating shaft passes through the support seat, and the limiting member is connected to the support seat.

[0010] Furthermore, a limiting groove is formed on one end of the locking tongue facing the inside of the frame, the limiting groove is connected to the unlocking hole, and the limiting member can be pushed into the limiting groove by the limiting spring.

[0011] Furthermore, a baffle is formed in the unlocking hole, the unlocking push rod passes through the baffle and is connected to a pressure block for pushing the limiting member, a top block is formed on one end of the unlocking push rod away from the limiting member, and the return spring is against the baffle and the top block.

[0012] Furthermore, a protruding pushing portion is formed on one end of the pushing block facing outside the frame.

[0013] Furthermore, a limiting rod is formed on one end of the limiting member facing the inner wall of the frame, and the limiting spring is sleeved on the limiting rod and abuts between the inner wall of the frame and the limiting member.

[0014] Furthermore, a connecting portion is formed on the unlocking rod, a linkage hole is provided on the connecting portion, and a control member inserted into the linkage hole is connected to the connecting portion. A slope is formed on the control member that can resist the inner wall of the linkage hole, and the slope can push the unlocking rod into the unlocking hole.

[0015] Furthermore, the control member is formed with an insert block passing through the linkage hole, and the insert block is formed with an elastic reset block, which is in an open shape and passes through the linkage hole in the direction where the inclined surface is located.

[0016] Furthermore, the unlocking rod is sleeved with a positioning spring that abuts against the connecting part, and the positioning spring makes the unlocking rod tend to move away from the locking tongue. A matching groove is formed in the control member, and a support rod is formed in the matching groove. The support rod is sleeved with a pressing spring that abuts against the inner wall of the matching groove.

[0017] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0018] Compared with traditional door locks, this door opening and closing mechanism further simplifies the structure required for opening and closing. It opens and closes the door by moving the unlocking push rod and pushing the door panel. It is easy to install and use, which not only effectively reduces the production cost, but is also more suitable for some indoor doors that only need simple opening and closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A three-dimensional schematic diagram of the present invention Figure 1 .

[0021] Figure 2 A three-dimensional schematic diagram of the present invention Figure 2 .

[0022] Figure 3 The cross-sectional view of the present invention Figure 1 .

[0023] Figure 4 The cross-sectional view of the present invention Figure 2 .

[0024] Figure 5 A three-dimensional schematic diagram of a control component.

[0025] 10-locking part, 20-unlocking part, 1-frame, 11-first rotating shaft, 12-second rotating shaft, 13-support seat, 2-lock tongue, 21-locking block, 22-pushing block, 221-pushing part, 23-notch, 24-unlocking hole, 241-baffle, 25-unlocking push rod, 251-pressing block, 252-top block, 26-reset spring, 27-connecting rod, 28-limiting groove, 3-limiting member, 31-limiting spring, 32-torsion spring, 33-limiting rod, 4-unlocking plug rod, 41-connecting part, 42-linkage hole, 43-positioning spring, 5-control member, 51-inclined surface, 52-plug block, 53-reset block, 54-matching groove, 541-support rod, 55-pressing spring. DETAILED DESCRIPTION

[0026] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0027] The present invention will be further described below with reference to specific embodiments of the present invention.

[0028] like Figure 1-4As shown, a door opening and closing mechanism comprises a locking portion 10 and an unlocking portion 20, the locking portion 10 comprises a frame 1, a rotatable lock tongue 2 and a limit member 3 are arranged in the frame 1, a limit spring 31 is arranged between the limit member 3 and the inner wall of the frame 1, the limit spring 31 makes the limit member 3 have a tendency to resist one end of the lock tongue 2 located in the frame 1, a torsion spring 32 is connected between the lock tongue 2 and the limit member 3, a lock block 21 and a push block 22 which can extend out of the frame 1 in sequence as the lock tongue 2 rotates are formed on the lock tongue 2, a notch 23 is defined between the lock block 21 and the push block 22, an unlocking hole 24 passing through the lock block 21 is formed in the lock block 21, an unlocking push rod 25 which can push the limit member 3 is arranged in the unlocking hole 24, a return spring 26 is sleeved on the unlocking push rod 25, and the return spring 26 makes the unlocking push rod 25 have a tendency to move away from the limit member 3. Specifically, in the door opening mechanism, when the locking part 10 is installed on the door frame, the unlocking part 20 is installed on the door panel; when the locking part 10 is installed on the door panel, the unlocking part 20 is installed on the door frame. The door frame or door panel is provided with a lock slot for the lock block 21 of the lock tongue 2 to extend into. When the lock tongue 2 extends into the lock slot and the limiter 3 abuts against the lock tongue 2 so that the lock tongue 2 is fixed, the door opening mechanism plays a role of locking the door; when the unlocking push rod 4 is inserted into the unlocking hole 24 on the lock block 21 and pushes the unlocking push rod 25, the unlocking push rod 25 will push the limiter 3 to rotate, and the lock tongue 2 is no longer restricted by the limiter 3. At this time, the door panel is pushed, and the lock tongue 2 will be pushed to rotate during the rotation of the door panel. , so that the locking block 21 retracts into the frame 1, the pushing block 22 extends out of the frame 1, and the locking tongue 2 is positioned by the torsion spring 32 after rotation; when the locking block 21 retracts into the frame 1 and the pushing block 22 extends out of the frame 1, the limiting member 3 abuts against the arc surface of the locking tongue 2 in the frame 1, closing the door panel, and the door panel pushes the pushing block 22, so that the locking tongue 2 rotates again, and the pushing block 22 rotates until it retracts into the frame 1, and the locking block 21 extends out of the frame 1 again and extends into the lock slot to complete locking the door.

[0029] The door opening mechanism only needs to install the locking part 10 and the unlocking part 20 on the door frame and the door panel respectively, and drive the unlocking rod 21 to rotate the lock tongue 2 to realize fast door opening and closing. Compared with traditional door locks, it also saves many complex matching parts, and no longer needs to install and use parts such as handles, which not only simplifies the operation of opening and closing the door, but also reduces the cost of production, installation and use.

[0030] As an improved embodiment, the frame 1 is respectively connected with a first rotating shaft 11 penetrating the lock tongue 2 and a second rotating shaft 12 penetrating the stopper 3, the lock tongue 2 rotates around the first rotating shaft 11, the stopper 3 rotates around the second rotating shaft 12, a connecting rod 27 parallel to the second rotating shaft 12 is formed on the lock tongue 2, and the torsion spring 32 is connected between the connecting rod 27 and the second rotating shaft 12. Specifically, during the rotation of the stopper 3 and the lock tongue 2, the torsion spring 32 will position the matching position of the stopper 3 and the lock tongue 2, so that the stopper 3 and the lock tongue 2 can maintain a stable matching relationship.

[0031] As an improved embodiment, a support seat 13 is formed in the frame 1, and the second shaft 12 passes through the support seat 13 and connects the stopper 3 to the support seat 13. Specifically, the support seat 13 plays a supporting role when the second shaft 12 is connected to the stopper 3, thereby improving the stability of the structure.

[0032] like Figure 3-4 As shown, a limiting groove 28 is formed on one end of the lock tongue 2 facing the inside of the frame 1, and the limiting groove 28 is connected to the unlocking hole 23, and the limiting member 3 can be pushed into the limiting groove 28 by the limiting spring 31. Specifically, the limiting member 3 is embedded in the limiting groove 28 to limit the lock tongue 2, so that the lock tongue 2 cannot rotate. When the limiting member 3 is pushed by the unlocking push rod 25, the lock tongue 2 is in an unlocked state and can rotate.

[0033] As an improved embodiment, a baffle plate 241 is formed in the unlocking hole 24, the unlocking push rod 25 passes through the baffle plate 241, and is connected with a pressing block 251 for pushing the limiting member 3. A top block 252 is formed on the end of the unlocking push rod 25 away from the limiting member 3, and the return spring 26 is pressed between the baffle plate 241 and the top block 252. Specifically, when the unlocking push rod 25 is pushed, the return spring 26 is pressed toward the baffle plate 241 by the top block 252, and the pressing block 251 pushes the limiting member 3 accordingly. When the unlocking push rod 25 is no longer subjected to the thrust from the unlocking plug 4, the return spring 26 rebounds and resets the unlocking push rod 25 by pushing the top block 252. The baffle plate 241 prevents the unlocking push rod 25 from being separated from the unlocking hole 24 by pressing against the pressing block 251.

[0034] As an improved embodiment, a protruding pushing portion 221 is formed on one end of the push block 22 facing the outside of the frame 1. Specifically, when the push block 22 extends out of the frame 1, the door panel will push the push block 22 through the pushing portion 221 during the closing process. The pushing portion 221 changes the force area of ​​the push block 22 when it is pushed, making the push block 22 easier to be pushed, thereby making the door opening mechanism easier to use.

[0035] As an improved embodiment, a limiting rod 33 is formed on one end of the limiting member 3 facing the inner wall of the frame 1, and the limiting spring 31 is sleeved on the limiting rod 33 and abuts between the inner wall of the frame 1 and the limiting member 3. Specifically, the limiting rod 33 plays a role in positioning the limiting spring 31 to prevent the limiting spring 31 from detaching from the limiting member 3, and the limiting spring 31 will stably push the limiting member 3 against the locking tongue 2.

[0036] like Figure 1 , Figure 2 and Figure 5 As shown, the unlocking plug rod 4 is formed with a connecting portion 41, the connecting portion 41 is provided with a linkage hole 42, and is connected with a control member 5 inserted into the linkage hole 42, and the control member 5 is formed with an inclined surface 51 that can abut against the inner wall of the linkage hole 42, and the inclined surface 51 can push the unlocking plug rod 4 into the unlocking hole 24. Specifically, the unlocking portion 20 is installed on a door frame or a door panel, the unlocking rod 4 can extend from the side end and align with the unlocking hole 24 on the lock tongue 2, the control member 5 is inserted into the linkage hole 42 from the front or back of the door, and the control member 5 is pressed in front of the door, and the control member 5 can push the inner wall of the linkage hole 42 through the inclined surface 51, so that the unlocking plug rod 4 moves toward the unlocking hole 24 of the lock tongue 2, thereby completing the unlocking and opening of the door. The number of linkage holes 42 can be set as needed. For example, when the number of linkage holes 42 is 1, the control member 5 can be inserted into the linkage hole 42 from the front or back of the door, so that the door opening mechanism can only be opened from a single direction inside or outside the door; when the number of linkage holes 42 is 2, the control member 5 can be inserted into the corresponding linkage hole 42 from the front and back of the door, respectively, so that the user can open the door opening mechanism from both inside and outside the door. The unlocking part 20 can be installed in a mounting seat, which is fixed to the corresponding door frame or door panel by the mounting seat. After the control member 5 extends out, it can be connected to the corresponding button for decoration, making the mechanism more beautiful as a whole.

[0037] As an improved embodiment, the control member 5 is formed with an insert block 52 passing through the linkage hole 42, and an elastic reset block 53 is formed on the insert block 52. The reset block 53 is in an open state and passes through the linkage hole 42 in the direction where the inclined surface 51 is located. Specifically, the control member 5 is connected to the linkage hole 42 through the cooperation between the insert block 52 and the reset block 53. When the control member 5 is pressed, the opened reset block 53 approaches the linkage hole 42 and gradually closes. At this time, the reset block 53 has a tendency to open due to its own elasticity. When the control member 5 is no longer pressed and is released, the reset block 53 pushes the control member 5 to move in a direction away from the linkage hole 42 and resets while opening.

[0038] As an improved embodiment, the unlocking plug rod 4 is sleeved with a positioning spring 43 that abuts against the connecting portion 41. The positioning spring 43 makes the unlocking plug rod 4 have a tendency to move away from the lock tongue 2. A matching groove 54 is formed in the control member 5. A support rod 541 is formed in the matching groove 54. A pressing spring 55 abuts against the inner wall of the matching groove 54 is sleeved on the support rod 541. Specifically, when the unlocking plug rod 4 is pushed and extends out of the mounting seat, the positioning spring 43 is pushed by the connecting portion 41 and squeezed. Since the unlocking plug rod 4 is installed in the mounting seat, the positioning spring 43 can be pressed against the inner wall of the mounting seat. When the unlocking plug rod 4 is no longer pushed, the positioning spring 43 can rebound and reset the unlocking plug rod 4 by pushing the positioning portion 41 and return it to the mounting seat. Similarly, when the control member 5 is pressed, the pressing spring 55 presses against the mounting seat and is squeezed. When the control member 5 is no longer pressed, the pressing spring 55 rebounds and can push the control member 5 to return to its original position.

[0039] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A door opening and closing mechanism, comprising a locking part and an unlocking part, characterized in that ； The locking part comprises a frame, a rotatable lock tongue and a limit piece are arranged in the frame, a limit spring is arranged between the limit piece and the inner wall of the frame, the limit spring makes the limit piece have a tendency to resist one end of the lock tongue located in the frame, a torsion spring is connected between the lock tongue and the limit piece, a lock block and a push block which can extend out of the frame in sequence with the rotation of the lock tongue are formed on the lock tongue, a notch is defined between the lock block and the push block, an unlocking hole passing through the lock block is formed in the lock block, an unlocking push rod which can push the limit piece is arranged in the unlocking hole, a return spring is sleeved on the unlocking push rod, and the return spring makes the unlocking push rod have a tendency to move away from the limit piece; The unlocking part includes an unlocking rod that can be inserted into the unlocking hole, and the unlocking rod can push the unlocking push rod to move; When the unlocking rod is inserted into the unlocking hole, the unlocking push rod pushes the limiting member to rotate, and the locking block can be retracted into the frame; The frame is respectively connected with a first rotating shaft penetrating the lock tongue and a second rotating shaft penetrating the position limiting member, the lock tongue rotates around the first rotating shaft, the position limiting member rotates around the second rotating shaft, a connecting rod parallel to the second rotating shaft is formed on the lock tongue, and the torsion spring is connected between the connecting rod and the second rotating shaft; A limiting groove is formed on one end of the locking tongue facing the inside of the frame, the limiting groove is connected to the unlocking hole, and the limiting member can be pushed into the limiting groove by the limiting spring.

2. The door opening and closing mechanism according to claim 1, characterized in that: A support seat is formed in the frame, and the second rotating shaft passes through the support seat and connects the limiting member to the support seat.

3. The door opening and closing mechanism according to claim 1, characterized in that: A baffle is formed in the unlocking hole, the unlocking push rod passes through the baffle and is connected to a pressure block for pushing the limiting member, a top block is formed on one end of the unlocking push rod away from the limiting member, and the return spring is abutted between the baffle and the top block.

4. The door opening and closing mechanism according to claim 1, characterized in that: A protruding pushing portion is formed on one end of the pushing block facing outside the frame.

5. The door opening and closing mechanism according to claim 1, characterized in that: A limiting rod is formed on one end of the limiting member facing the inner wall of the frame, and the limiting spring is sleeved on the limiting rod and abuts between the inner wall of the frame and the limiting member.

6. The door opening and closing mechanism according to claim 1, characterized in that: A connecting portion is formed on the unlocking rod, a linkage hole is provided on the connecting portion, and a control member inserted into the linkage hole is connected to the connecting portion. A slope that can abut against the inner wall of the linkage hole is formed on the control member, and the slope can push the unlocking rod into the unlocking hole.

7. The door opening and closing mechanism according to claim 6, characterized in that: The control member is provided with an inserting block passing through the linkage hole, and the inserting block is provided with an elastic reset block, which is in an open shape and passes through the linkage hole in the direction where the inclined surface is located.

8. The door opening and closing mechanism according to claim 7, characterized in that: The unlocking rod is sleeved with a positioning spring that abuts against the connecting part, and the positioning spring makes the unlocking rod tend to move away from the locking tongue. A matching groove is formed in the control member, and a support rod is formed in the matching groove. The support rod is sleeved with a pressing spring that abuts against the inner wall of the matching groove.

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