Outward rotation type door lock transmission mechanism

Abstract

The utility model discloses an outward rotation type door lock transmission mechanism, and relates to the field of outward rotation door locks of protective doors, the outward rotation type door lock transmission mechanism comprises a sliding protective door connected to the inner side of a fixed protective door in a sliding mode, a visual window is installed in an inner cavity in the sliding protective door, and a connecting piece is fixedly installed in the sliding protective door. A rotating shaft part of the handle is rotationally installed in the connecting piece, an inserting rod protruding inwards is welded to a side plate of the visual window, a fixing block is fixedly installed on a tail end plate of the connecting piece, and a sliding block is connected to the top of the fixing block in an up-down sliding mode through a guide mechanism. Through the arrangement of the locking mechanism, the sliding block, the driving mechanism and the guide mechanism, the locking effect can be automatically achieved when the sliding protective door is closed, the locking function can be achieved without rotating a handle by a worker, and the problem that the sliding protective door is not locked in place or missed in operation due to manual negligence is avoided.

Description

Technical Field

[0001] This utility model relates to the field of external rotating door locks for protective doors, specifically an external rotating door lock transmission mechanism. Background Technology

[0002] In machining centers, when performing operations such as cutting, pinning, and milling on workpieces or sheet metal, it is necessary to close the sliding protective door to achieve a protective effect.

[0003] Sliding safety doors are generally equipped with an outward-rotating door lock to prevent the sliding safety door from being in the closed state. In the existing technology, after the sliding safety door is closed, the handle needs to be turned to lock the two parts. This structure, which requires manual locking, often results in the door being left unlocked or not locked properly due to the negligence of the staff, thus reducing the protective performance of the sliding safety door. Utility Model Content

[0004] The purpose of this utility model is to provide an externally rotating door lock transmission mechanism in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an externally rotating door lock transmission mechanism, comprising a sliding protective door slidably connected to the inside of a fixed protective door, a viewing window installed in the inner cavity of the sliding protective door, a connector fixedly installed inside the sliding protective door, a rotating shaft of a handle rotatably installed inside the connector, an inwardly protruding plug rod welded to the side plate of the viewing window, a fixing block fixedly installed on the tail plate of the connector, a sliding block slidably connected to the top of the fixing block via a guide mechanism, a transmission mechanism distributed on the tail end of the rotating shaft of the handle and the front end of the sliding block, a locking mechanism slidably connected inside the plug rod, and a plug groove matching the plug rod being opened on the mating surface of the fixing block and the sliding block.

[0006] As a further embodiment of this utility model: the guiding mechanism includes a guide rod integrally formed on the top surface of the fixed block and protruding upward; the sliding block has a sliding groove inside that is slidably connected to the outer wall of the guide rod; the top of the guide rod has an integrally formed protrusion; a return spring is abutted between the bottom end of the protrusion of the guide rod and the top end of the sliding block; and the return spring is sleeved on the outer periphery of the guide rod.

[0007] As a further embodiment of this utility model: the transmission mechanism includes a gear fixedly connected to the tail end of the handle rotation shaft and a rack formed on one side of the front end of the sliding block, wherein the gear meshes with the rack.

[0008] As a further embodiment of this utility model: the locking mechanism includes a receiving groove formed inside the plug rod, a connecting spring is fixedly installed at the bottom of the inner wall of the receiving groove, and a locking tongue is fixedly installed at the top of the connecting spring, extending through to the outside of the plug rod, with the end of the locking tongue located outside the plug rod being inclined.

[0009] As a further improvement of this utility model: the bottom end of the locking tongue is formed with an anti-disengagement part, and the top of the inner wall of the receiving groove is integrally formed with a limiting part for limiting the anti-disengagement part.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. By setting up a locking mechanism, sliding block, driving mechanism and guiding mechanism, the sliding protective door can automatically lock when closed, without the need for staff to turn the handle to lock, thus avoiding the problem of the sliding protective door not locking properly or missing operation due to human negligence. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0014] Figure 3 This is a schematic diagram of the guiding mechanism structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the drive mechanism structure of this utility model;

[0016] Figure 5 This is a schematic diagram of the locking mechanism of this utility model.

[0017] In the diagram: 1. Sliding protective door; 2. Viewing window; 3. Fixed protective door; 4. Connector; 5. Handle; 6. Insert rod; 7. Fixing block; 8. Sliding block; 9. Guide rod; 10. Return spring; 11. Locking tongue; 12. Gear; 13. Rack; 14. Receiving groove; 15. Connecting spring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-5 In this embodiment of the utility model, an externally rotating door lock transmission mechanism includes a sliding protective door 1 slidably connected to the inside of a fixed protective door 3. A viewing window 2 is installed in the inner cavity of the sliding protective door 1. A connector 4 is fixedly installed inside the sliding protective door 1. The rotating shaft of the handle 5 is rotatably installed inside the connector 4. An inwardly protruding plug rod 6 is welded to the side plate of the viewing window 2. A fixing block 7 is fixedly installed on the tail plate of the connector 4. A sliding block 8 is slidably connected to the top of the fixing block 7 through a guide mechanism. Transmission mechanisms are distributed on the tail end of the rotating shaft of the handle 5 and the front end of the sliding block 8. A locking mechanism is slidably connected to the inside of the plug rod 6. A plug groove that matches the plug rod 6 is opened on the mating surface of the fixing block 7 and the sliding block 8.

[0020] In this embodiment: First, when the sliding protective door 1 is closed, the sliding protective door 1 is moved by pulling the C-shaped part on the outside of the sliding protective door 1. The sliding protective door 1 drives the fixed block 7 and the sliding block 8 to move synchronously through the connector 4. When the fixed block 7, the sliding block 8 and the plug rod 6 are plugged in, the locking mechanism is compressed by pressure until the plug slot and the locking mechanism are misaligned. At this time, the locking mechanism resets and limits the position of the fixed block 7 and the sliding block 8. At this time, the sliding protective door 1 cannot slide back to its original position directly.

[0021] When it is necessary to pull the sliding protective door 1 to reset, turn the handle 5. The handle 5 pushes the sliding block 8 upward along the guide mechanism through the starting mechanism. At this time, the locking mechanism is misaligned with the sliding block 8, and the sliding protective door 1 can be slid open.

[0022] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4 The guiding mechanism includes a guide rod 9 integrally formed on the top surface of the fixed block 7 and protruding upward. The sliding block 8 has a sliding groove inside that slides and connects with the outer wall of the guide rod 9. The top of the guide rod 9 is integrally formed with a protrusion. A return spring 10 is abutted between the bottom end of the protrusion of the guide rod 9 and the top end of the sliding block 8. The return spring 10 is sleeved on the outer periphery of the guide rod 9.

[0023] In this embodiment: when the handle 5 pushes the sliding block 8 upward through the drive mechanism, the sliding block 8 slides upward along the outer wall of the guide rod 9. At this time, the reset spring 10 is compressed. After the sliding protective door 1 is opened, the force applied to the handle 5 is removed. At this time, the reset spring 10 pushes the sliding block 8 downward to reset. The downward reset sliding block 8 reverses the drive mechanism to reset the handle 5.

[0024] Please refer to this carefully. Figure 4The transmission mechanism includes a gear 12 fixedly connected to the tail end of the rotating shaft of the handle 5 and a rack 13 formed on one side of the front end of the sliding block 8. The gear 12 and the rack 13 mesh with each other.

[0025] In this embodiment: when the handle 5 is subjected to force and rotates downward from the horizontal position, the handle 5 drives the gear 12 to rotate synchronously, and the rotating gear 12 drives the rack 13 to move upward. The upward-moving rack 13 can push the sliding block 8 to slide upward.

[0026] Please refer to this carefully. Figure 5 The locking mechanism includes a receiving groove 14 inside the plug rod 6. A connecting spring 15 is fixedly installed at the bottom of the inner wall of the receiving groove 14. A locking tongue 11 that extends through to the outside of the plug rod 6 is fixedly installed at the top of the connecting spring 15. The end of the locking tongue 11 located outside the plug rod 6 is inclined. An anti-disengagement part is formed at the bottom of the locking tongue 11. A limiting part that limits the anti-disengagement part is integrally formed at the top of the inner wall of the receiving groove 14.

[0027] In this embodiment: when the sliding protective door 1 is closed, the sliding block 8 and the fixed block 7 drive their insertion slots to engage with the outer wall of the insertion rod 6. During the engagement process, the top inclined surface of the latch 11 is subjected to pressure. At this time, the latch 11 is forced to contract towards the inside of the receiving groove 14, and the connecting spring 15 is compressed. When the sliding block 8 and the latch 11 are misaligned, the connecting spring 15 pushes the latch 11 upward to reset. At this time, the latch 11 can restrict the sliding block 8 from resetting.

[0028] When the sliding protective door 1 is opened, the sliding block 8 that slides upward is misaligned with the locking tongue 11 in the vertical position. At this time, the locking tongue 11 can no longer restrict the sliding block 8, and the sliding protective door 1 can be opened.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An externally rotating door lock transmission mechanism, comprising a sliding protective door (1) slidably connected to the inner side of a fixed protective door (3), wherein a viewing window (2) is installed in the inner cavity of the sliding protective door (1), characterized in that, The sliding protective door (1) is fixedly installed with a connector (4). The rotating shaft of the handle (5) is rotatably installed inside the connector (4). The side plate of the viewing window (2) is welded with an inwardly protruding plug rod (6). A fixing block (7) is fixedly installed on the tail plate of the connector (4). The top of the fixing block (7) is slidably connected to a sliding block (8) through a guide mechanism. A transmission mechanism is distributed on the tail end of the rotating shaft of the handle (5) and the front end of the sliding block (8). A locking mechanism is slidably connected inside the plug rod (6). A plug groove that matches the plug rod (6) is opened on the mating surface of the fixing block (7) and the sliding block (8).

2. The externally rotating door lock transmission mechanism according to claim 1, characterized in that, The guiding mechanism includes a guide rod (9) integrally formed on the top surface of the fixed block (7) and protruding upward. The sliding block (8) has a sliding groove inside that is slidably connected to the outer wall of the guide rod (9). The top of the guide rod (9) is integrally formed with a protrusion. A return spring (10) abuts between the bottom end of the protrusion of the guide rod (9) and the top end of the sliding block (8). The return spring (10) is sleeved on the outer periphery of the guide rod (9).

3. The externally rotating door lock transmission mechanism according to claim 1, characterized in that, The transmission mechanism includes a gear (12) fixedly connected to the tail end of the rotating shaft of the handle (5) and a rack (13) formed on one side of the front end of the sliding block (8), wherein the gear (12) meshes with the rack (13).

4. The externally rotating door lock transmission mechanism according to claim 3, characterized in that, The locking mechanism includes a receiving groove (14) inside the plug rod (6), a connecting spring (15) is fixedly installed at the bottom of the inner wall of the receiving groove (14), and a locking tongue (11) that extends through to the outside of the plug rod (6) is fixedly installed at the top of the connecting spring (15). The locking tongue (11) is inclined at one end outside the plug rod (6).

5. The externally rotating door lock transmission mechanism according to claim 4, characterized in that, The bottom end of the locking tongue (11) is formed with an anti-detachment part, and the top of the inner wall of the receiving groove (14) is integrally formed with a limiting part that limits the anti-detachment part.

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