Outward opening door stopper

Abstract

The utility model belongs to the technical field of door protection equipment, and provides an outward-opening door stopper which aims at solving the problem that a straight strip is easy to separate from a space between a door lock handle and a door and the door stopper loses efficacy in the repeated door opening process of an existing door stopper under external force. Comprising a stress rod, a resisting piece for resisting a protruding part of a door lock handle and a connecting piece for connecting the stress rod with the resisting piece, so that the technical problem is effectively solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of door security equipment, and relates to an outward-opening door stopper to prevent outward-opening doors from being opened. Background Technology

[0002] Currently, outward-opening door stoppers typically function on door lock handles, using a straight bar-like structure placed between the door lock handle and the door. When the door opens outward, the straight bar blocks the door lock handle, thus acting as a door stopper. However, during repeated opening and closing processes by external forces, the door lock handle continuously collides with the straight bar, causing the straight bar to detach from the space between the door lock handle and the door, resulting in the door stopper failing.

[0003] Therefore, there is an urgent need in the market for a technology that ensures that outward-opening door stoppers always effectively block doors in order to improve existing door stoppers. Utility Model Content

[0004] In view of the problems existing in the outward-opening door stopper, namely that the straight bar blocks the door lock handle, it is easy for the door lock handle to hit the straight bar during repeated opening of the door by external force, causing the straight bar to detach from the space between the door lock handle and the door, resulting in the failure of the door stopper, this utility model provides an outward-opening door stopper. The door stopper acts on the exposed door lock handle, and part of the door lock handle protrudes outward relative to the door lock handle rotation axis, forming a door lock handle protrusion. The door stopper includes a force-bearing rod, a stopper that abuts against the door lock handle protrusion, and a connecting member connecting the force-bearing rod and the stopper. The characteristic of the stopper is that the stopper is a collar that completely covers the door lock handle rotation axis.

[0005] The door lock handle involved in this utility model has at least a portion that protrudes outward relative to the door lock handle's rotation axis, forming a door lock handle protrusion. Such door lock handles include ball handles, straight handles, conical handles, or partially cylindrical handles. The partially cylindrical handle has a recessed ring that is recessed towards the door lock handle's rotation axis. The collar can be fitted inside the recessed ring, so that there will always be a protrusion protruding outward relative to the recessed ring blocking the collar. Because the collar completely fits the door lock handle's rotation axis, even if the door lock handle protrusion repeatedly impacts the collar under external force, the collar remains within the space between the door lock handle and the door to block the door lock handle protrusion, ensuring that the outward-opening door stopper of this utility model always has a door-blocking effect.

[0006] Furthermore, the collar of this invention has a gap between it and the door lock handle shaft. Compared to collars that are completely fitted to the door lock handle shaft, the existence of the gap in this invention greatly reduces or avoids the frictional force applied to the collar by the door lock handle shaft, preventing the collar from rotating improperly when the door lock handle is turned.

[0007] The present invention also adopts the following technical solutions:

[0008] The rings are all made of flexible materials or chains;

[0009] The collar includes a fixed collar and a movable collar that moves relative to the fixed collar. One end of the movable collar is connected to the fixed collar, and the other end is an insertion end that is inserted into the fixed collar. When the collar is in the open state, the insertion end is separated from the fixed collar, allowing the door lock handle shaft to enter or leave the collar through the opening between the insertion end and the fixed collar. When the collar is in the closed state, the insertion end is inserted into the fixed collar to form a completely closed collar.

[0010] or;

[0011] The collar includes a fixed collar and a movable collar that moves relative to the fixed collar. The movable collar has two insertion ends that insert into the fixed collar. When the collar is in the open state, both insertion ends are separated from the fixed collar, allowing the door lock handle shaft to enter or leave the collar through the space between the movable collar and the fixed collar. When the collar is in the closed state, both insertion ends are inserted into the fixed collar to form a completely closed collar.

[0012] The collar also includes a snap-fit ​​mechanism disposed between the fixed collar and the movable collar. The snap-fit ​​mechanism includes a slot and a pin. When the insertion end is inserted into the fixed collar, the pin is inserted into the slot. When the insertion end is separated from the fixed collar, the pin is disengaged from the slot.

[0013] The fixing collar includes a spring and a movable channel for the slot to move along the spring's extension direction, so that the slot moves between the compressed position of the spring and the extended position of the spring. When the insertion end is inserted into the fixing collar, the locking pin pushes the slot towards the compressed position through the slot end face, and slides into the slot from the slot end face under the spring force, so that the slot returns from the compressed position to the extended position. The slot includes a force-receiving end that receives external force and pushes the slot towards the compressed position.

[0014] or;

[0015] The fixing collar includes a spring and a movable channel for the locking pin to move along the spring's extension direction, allowing the locking pin to move between the compressed position and the extended position of the spring. When the insertion end is inserted into the fixing collar, the locking groove pushes the locking pin towards the compressed position through the groove's end face, and under the spring's elastic force, the locking pin slides into the groove from the groove's end face, causing the locking pin to return from the compressed position to the extended position. The locking pin includes a force-receiving end that receives external force and pushes the locking pin towards the compressed position.

[0016] or;

[0017] The fixed collar includes a spring and a movable channel for the locking pin to move along the spring's extension direction, allowing the locking pin to move between the compressed position and the extended position of the spring. The locking pin also has a stop surface that abuts against the movable collar, placing the locking pin in the compressed position. During the movement of the movable collar relative to the fixed collar, the stop surface always abuts against the movable collar until the insertion end is inserted into the fixed collar. At this point, the locking pin moves towards the extended position under the spring's elastic force and is inserted into the slot. The locking pin includes a force-receiving end that receives external force and pushes the locking pin towards the compressed position.

[0018] The side of the locking pin that abuts against the end face of the slot is a bevel or an arc; or the end face of the slot is a bevel or an arc.

[0019] The locking mechanism includes at least two slots or at least two pins;

[0020] The fixed collar is provided with a sliding channel for at least part of the movable collar to slide, and one end of the movable collar connected to the fixed collar extends into the sliding channel; or; the fixed collar and the movable collar are folded together; or; the fixed collar or the movable collar is composed of at least two folded segments.

[0021] The snare also includes a spring connecting the fixed collar and the movable collar, the spring preventing the insertion end from being inserted into the fixed collar;

[0022] The fixed collar and / or the movable collar are made of flexible material or chain;

[0023] The connector includes a threaded adjustment mechanism that connects the force-bearing rod and the sleeve. The threaded adjustment mechanism includes a threaded rod with threaded rod connection ends at both ends. The threaded rod connection ends are either external or internal threads. Between the threaded rod connection ends is a threaded rod extension section that connects the two threaded rod connection ends. The threaded rod extension section and the threaded rod connection ends are an integral structure, or the threaded rod extension section includes interconnected extension segments.

[0024] The door stop also includes a bracket for supporting the force-bearing rod. The bracket is installed on the outward-opening door frame. The bracket consists of at least one of a long bracket with an extended length and a short bracket with a shortened length. When the outward-opening door is in the closed state, the bracket is a long bracket when the door frame thickness is less than or equal to the distance between the door lock handle and the outward-opening door surface. When the door frame thickness is greater than or equal to the distance between the door lock handle and the outward-opening door surface, the bracket is a short bracket. Attached Figure Description

[0025] Figure 1 This is a partial structural schematic diagram of the outward-opening door stopper described in Embodiment 1;

[0026] Figure 2 yes Figure 1 A schematic diagram of the disassembly structure;

[0027] Figure 3 This is a schematic diagram of the usage state of the outward-opening door stopper described in Embodiment 1;

[0028] Figure 4 This is a partial structural disassembly diagram of the outward-opening door stopper described in Embodiment 2;

[0029] Figure 5 yes Figure 4 A schematic diagram of the assembled structure;

[0030] Figure 6 This is a cross-sectional view of the card slot described in Example 2;

[0031] Figure 7 yes Figure 1 A schematic diagram of the disassembly structure;

[0032] Figure 8 This is a schematic diagram of another threaded rod described in Embodiment 9 (the attached ring sleeve that covers the force-bearing rod is not a threaded rod);

[0033] Figure 9 This is a schematic diagram of the usage state of the long bracket described in Embodiment 10;

[0034] Figure 10 This is a schematic diagram of the usage state of the short bracket described in Example 11. Detailed Implementation

[0035] This section provides a detailed description of the utility model, which provides an outward-opening door stopper. The door stopper acts on an exposed door lock handle, with part of the door lock handle protruding outward relative to the door lock handle's rotation axis, forming a door lock handle protrusion. The door stopper includes a force-bearing rod, a stopper that blocks the door lock handle protrusion, and a connector that connects the force-bearing rod and the stopper. The stopper is a collar that completely covers the door lock handle's rotation axis.

[0036] When the door stopper is used, the collar typically has a small diameter, while the initial collar can have a relatively large diameter. It then passes through the protrusion of the door lock handle and enters the door lock handle shaft, subsequently narrowing its diameter. Therefore, in some embodiments, the collar is entirely made of flexible material or chain. Alternatively, it can be initially attached to the door lock handle shaft to form the collar. These collars conform to the surface curvature of the door lock handle shaft, reducing the gap between the door lock handle shaft and the collar (i.e., reducing the impact of the door lock handle on the collar under the external force of attempting to open an outward-opening door).

[0037] For collars made of rigid materials, some embodiments divide the collar into at least a fixed collar and a movable collar that moves relative to the fixed collar. One end of the movable collar is connected to the fixed collar, and the other end is an insertion end that inserts into the fixed collar. When the collar is in the open state, the insertion end is separated from the fixed collar, and the door lock handle shaft enters or exits the collar through the opening between the insertion end and the fixed collar. When the collar is in the closed state, the insertion end is inserted into the fixed collar, thus forming a completely closed collar. Other embodiments also divide the collar into at least a fixed collar and a movable collar that moves relative to the fixed collar. The movable collar has two insertion ends that insert into the fixed collar. When the collar is in the open state, both insertion ends are separated from the fixed collar, and the door lock handle shaft enters or exits the collar through the space between the movable collar and the fixed collar. When the collar is in the closed state, both insertion ends are inserted into the fixed collar, thus forming a completely closed collar.

[0038] Technicians can choose the snares provided in the two types of embodiments described above. For the movable ring that needs to be connected to the fixed ring, different existing known connection methods can be used. Some embodiments provide a preferred connection method. In these embodiments, the fixed ring is provided with a sliding channel for at least part of the movable ring to slide. The end of the movable ring connected to the fixed ring extends into the sliding channel, making it convenient to extend at least part of the movable ring into the sliding channel of the fixed ring when the snare is not in use, thus reducing the space occupied by the entire snare. Some embodiments configure the fixed ring as consisting of at least two mutually folded segments, or configure the movable ring as consisting of at least two mutually folded segments, or, more directly, the fixed ring and the movable ring fold together. For example, the fixed ring and the movable ring can be connected by a hinge to achieve mutual folding. In this way, when the snare is not in use, the mutual folding of the folded segments can reduce the space occupied by the entire snare.

[0039] The outward-opening door stopper of this utility model should be secure after the insertion end is inserted into the fixed collar, completely preventing external force from impacting the collar through the protruding part of the door lock handle and forcing the insertion end of the movable collar to detach from the fixed collar. In a specific embodiment, a locking mechanism is added to the collar. The locking mechanism is located between the fixed collar and the movable collar. The mechanism includes a slot and a pin. When the insertion end is inserted into the fixed collar, the pin is inserted into the slot to prevent the insertion end from detaching from the fixed collar. When the insertion end separates from the fixed collar, the pin disengages from the slot.

[0040] Some embodiments further illustrate the structure of the control latching mechanism. In one embodiment, the fixing collar includes a spring and a movable channel for the latching groove to move along the spring's extension direction, allowing the latching groove to move between a compressed position and an extended position. When the insertion end is inserted into the fixing collar, the latching pin pushes the latching groove toward the compressed position through the groove's end face and slides into the latching groove from the groove's end face under the spring's elastic force, causing the latching groove to return from the compressed position to the extended position. In addition, the latching groove includes a force-receiving end that receives external force and pushes the latching groove toward the compressed position. When force is applied to the force-receiving end, the latching pin disengages from the latching groove. In another embodiment, the fixing collar includes a spring and a movable channel for the locking pin to move along the spring's extension direction, so that the locking pin moves between the compressed position of the spring and the extended position of the spring. When the insertion end is inserted into the fixing collar, the locking groove slides into the locking groove through the groove end face, so that the locking pin returns from the compressed position to the extended position. The locking pin includes a force-receiving end that receives external force and pushes the locking pin to move towards the compressed position. The springs in the above embodiments are initially in a naturally extended state and are not compressed. They are compressed when the fixed collar is inserted at the insertion end. However, in some embodiments, the springs are initially in a compressed state. In these embodiments, the fixed collar includes a spring and a movable channel for the locking pin to move along the spring's extension direction, allowing the locking pin to move between the compressed position and the extended position of the spring. The locking pin also has a stop surface that abuts against the movable collar, placing the locking pin in the compressed position. During the movement of the movable collar relative to the fixed collar, the stop surface always abuts against the movable collar until the insertion end is inserted into the fixed collar. At this point, the locking pin moves towards the extended position under the spring's elastic force and inserts into the slot, thereby preventing the movable collar from moving relative to the fixed collar. The locking pin includes a force-receiving end that receives external force and pushes the locking pin towards the compressed position. After the force-receiving end is subjected to force, the locking pin disengages from the slot.

[0041] Furthermore, the side of the locking pin that abuts against the groove opening end face is either a bevel or an arc surface, or the groove opening end face is either a bevel or an arc surface. Of course, both beveled and arc surfaces can be selected simultaneously, allowing the locking pin to move smoothly to near the groove opening and slide into the groove when it abuts against the groove opening end face. Some embodiments focus on how to smoothly disengage the locking pin from the groove. By applying external force to the force-bearing end, the locking pin leaves the groove. However, once the external force is stopped, the locking pin will re-enter the groove under the action of a spring. This embodiment adds a spring connecting the fixed collar and the movable collar. The spring prevents the insertion end from inserting into the fixed collar, so that once the locking pin leaves the groove and reaches the groove opening under the push of the force-bearing end, it will automatically disengage from the groove.

[0042] In order to adjust the opening of the snare as if it were made of flexible material or chain, some embodiments further set the number of slots to at least two or the number of pins to at least two. For example, there may be only one pin and multiple slots, or only one slot and multiple pins, or multiple pairs of pins and slots. Different pins entering different slots will provide different insertion depths of the insertion end to the fixing collar, thereby changing the opening of the snare to accommodate door lock handle shafts with different openings.

[0043] Of course, some embodiments draw on the advantages of flexible materials or chains, replacing the fixed and / or movable collars, which are usually made of rigid materials, with flexible materials or chains. This allows the collar to conform to the surface curvature of the door lock handle shaft after it is fully fitted, reducing the gap between the door lock handle shaft and the collar (i.e., reducing the impact of the door lock handle on the collar when an external force is applied to try to open an outward-opening door).

[0044] Example 1

[0045] See Figure 1 , Figure 2 , Figure 3 and Figure 7 This embodiment provides an outward-opening door stopper that acts on an exposed door lock handle. The door lock handle includes a door lock handle shaft 14 and a door lock handle protrusion 15 that protrudes outward relative to the door lock handle shaft 14. The outward-opening door stopper includes a force-bearing rod 16, a collar that completely covers the door lock handle shaft 14 and abuts against the door lock handle protrusion 15 to prevent the outward-opening door from opening outward, and a connecting member connecting the collar and the force-bearing rod 16. The connecting member includes a threaded adjustment mechanism, a collar 3 located at one end of the threaded adjustment mechanism and covering the force-bearing rod 16, and a housing 19 located at the other end of the threaded adjustment mechanism and connecting the collar. The threaded adjustment mechanism includes a threaded rod 11 and a threaded through hole 10. A bracket 17 supporting the force-bearing rod 16 is provided on the door frame 18 of the outward-opening door. The distance between the collar and the force-bearing rod 16 can be adjusted by rotating the threaded rod 11.

[0046] See Figure 7 In this embodiment, the threaded rod 11 includes threaded rod connecting ends (50, 51) located at both ends of the threaded rod 11 and a threaded rod extension section 52 connecting the two threaded rod connecting ends (50, 51). The threaded rod extension section and the threaded rod connecting ends are integral structures. When the distance between the force-bearing rod 16 and the collar is relatively large, a threaded rod 11 with a longer threaded rod extension section 52 can be selected; when the distance between the force-bearing rod 16 and the collar is relatively short, a threaded rod 11 with a shorter threaded rod extension section 52 can be selected.

[0047] The snare includes a fixed collar 1 and a movable collar 2 that moves relative to the fixed collar 1. Figure 3 From the top view, neither the fixed collar 1 nor the movable collar 2 is completely fitted with the door lock handle shaft 14. Therefore, there must be a gap between the collar and the door lock handle shaft 14, which greatly reduces or avoids the friction between the door lock handle shaft 14 and the collar. When the door lock handle shaft 14 rotates, it cannot drive the collar to rotate improperly. The fixed collar 1 has a sliding channel 4 for the movable collar 2 to slide. One end of the movable collar 2 is connected to the fixed collar 1 and is inserted into the sliding channel 4 by a spring 6. The other end of the movable collar 2 is the insertion end 20 for inserting into the fixed collar 1. When the collar is closed, the elastic force of the spring 6 is overcome, and the movable collar 2 is pulled out from the sliding channel 4, so that the insertion end 20 is inserted into the fixed collar 1, thereby forming a closed collar. When the collar is not used, the movable collar 2 is at least partially retracted into the sliding channel 4 under the action of the elastic force of the spring 6. The opening left by the insertion end 20 and the fixed collar 1 allows the door lock handle shaft 14 to enter and exit. In this embodiment, the fixed collar 1 is also provided with a sliding hole 12, and the movable collar 2 is provided with a corresponding sliding button 13 passing through the sliding hole 12, which limits the sliding range of the movable collar 2 in the sliding channel 4.

[0048] A groove 5 is provided near the connection end between the movable collar 2 and the fixed collar 1. The fixed collar 1 is provided with a locking pin 21 and a spring 7 connecting the locking pin 21 and the fixed collar 1. The locking pin 21 includes a force-receiving end 9 and an arc-shaped abutting surface 8. The arc-shaped abutting surface 8 is basically matched with the outer surface of the movable collar 2. The external force received by the force-receiving end 9 is applied to the spring 7 through the locking pin 21, causing the spring 7 to compress or naturally extend. Thus, under the action of external force, the locking pin 21 is located between the compressed position of the spring and the extended position of the spring. Normally, the arc-shaped abutting surface 8 always abuts against the movable collar 2, so that the locking pin 21 is always in the compressed position. Until the insertion end 20 is inserted into the fixed collar 1, the locking pin 21 moves in the extension direction under the elastic force of the spring 7 and inserts into the locking groove 5, preventing the movable collar 2 from moving relative to the fixed collar 1, so that the loop is closed. However, when force is applied to the force-receiving end 9, the locking pin 21 can be disengaged from the locking groove 5. Under the action of the spring 6, the movable collar 2 can move relative to the fixed collar 1 again, thereby opening the loop.

[0049] Example 2

[0050] See Figure 4 , Figure 5 and Figure 6This embodiment provides another outward-opening door stopper, which is partially the same as that in Embodiment 1. The loop includes a fixed collar 30, a movable collar 31 that moves relative to the fixed collar 30, and a spring 35 connecting the fixed collar 30 and the movable collar 31. A concave ring 36 is provided near the end of the movable collar 31 connected to the fixed collar 30. The fixed collar 31 has a convex ring that inserts into the concave ring 36. The concave ring 36 limits the movement space of the convex ring, thereby limiting the movement space of the movable collar 31 relative to the fixed collar 30. The fixed collar 30 also has a locking pin 34 and a spring 32. Force applied to the force-bearing end 39 of the locking pin 34 can be transmitted to the spring 32 through the locking pin 34, thereby causing the locking pin 34 to... The spring 32 moves between its compressed position and its extended position. The insertion end 37 has a slot 38. When the insertion end 37 is inserted into the fixed collar 30, the slot 38 pushes the locking pin 34 towards the compressed position through the slot end face 40. Under the elastic force of the spring 32, the locking pin 34 slides from the slot end face 40 into the slot 38, thus preventing the movable collar 31 from moving relative to the fixed collar 30, and the collar closes. Applying force to the force-bearing end 39 causes the locking pin 34 to leave the slot 38 and, driven by the spring 35, completely disengage from the slot 38, allowing the movable collar 31 to move relative to the fixed collar 30 again, and the collar opens. The pushing surface 33 of the locking pin 34, where it is pushed by the slot end face, is an inclined surface.

[0051] Example 3

[0052] Example 3 is basically the same as Example 1, except that the movable collar is not made entirely of rigid material, but partly of flexible material, so that it can better fit the shape of the door lock handle shaft and reduce the gap between the door lock handle shaft and the collar.

[0053] Example 4

[0054] Example 4 is basically the same as Example 2, except that the insertion end 37 is provided with multiple slots 38, and the pin can be inserted into different slots to adjust the diameter of the snare.

[0055] Example 5

[0056] This embodiment is largely the same as Embodiment 1, except that the entire loop is made of flexible material, so there are no fixed loops or movable loops, and the loop is directly fitted onto the door lock handle shaft.

[0057] Example 6

[0058] This embodiment is largely the same as embodiment 2, except that both ends of the movable collar connecting to the fixed collar are insertion ends. Therefore, the movable collar and the fixed collar are disengaged from each other when the collar is open.

[0059] Example 7

[0060] This embodiment is largely the same as Embodiment 2, except that the movable collar consists of two folded segments that fold against each other.

[0061] Example 8

[0062] This embodiment is largely the same as embodiment 2, except that the movable collar and the fixed collar are connected at one end to the fixed collar, so that the movable collar can be folded onto the fixed collar.

[0063] Example 9

[0064] See Figure 8 This embodiment provides another threaded rod that is different from the threaded rod described in Embodiment 1. The two ends of the threaded rod are threaded rod connection ends 60 and 63 with external thread structures. The threaded rod extension section is between the threaded rod connection ends 60 and 63. The threaded rod extension section includes extension segments 61 and 62 that are threadedly connected to each other. When a longer or shorter threaded rod is needed, the extension segments can be added or removed.

[0065] Example 10

[0066] See Figure 9 This embodiment provides another bracket different from the bracket described in Embodiment 1. This bracket is extended relative to the connection portion 71 of the door frame 70 to form a long bracket 72. The thickness of the door frame 70 in this embodiment is less than the distance between the door handle and the surface of the outward-opening door. Using the long bracket 72, the load-bearing rod can be supported smoothly.

[0067] Example 11

[0068] See Figure 10 This embodiment provides another bracket that is different from the bracket described in Embodiment 1. The bracket is relatively shortened from the connection part 81 of the door frame 80, thereby forming a short bracket 82. The thickness of the door frame 80 in this embodiment is greater than the distance between the door handle and the surface of the outward-opening door. Using the short bracket 82, the load-bearing rod can be supported smoothly.

[0069] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An outward-opening door stopper, acting on an exposed door lock handle, wherein a portion of the door lock handle protrudes outward relative to the door lock handle's rotation axis, forming a door lock handle protrusion; the door stopper includes a force-bearing rod, a stopper that abuts against the door lock handle protrusion, and a connecting member that connects the force-bearing rod and the stopper; characterized in that... The stop is a collar that completely covers the pivot of the door lock handle.

2. The outward-opening door stop according to claim 1, characterized in that... The rings are all made of flexible materials or chains.

3. The outward-opening door stopper according to claim 1, characterized in that... The collar includes a fixed collar and a movable collar that moves relative to the fixed collar. One end of the movable collar is connected to the fixed collar, and the other end is an insertion end that is inserted into the fixed collar. When the collar is in the open state, the insertion end is separated from the fixed collar, allowing the door lock handle shaft to enter or leave the collar through the opening between the insertion end and the fixed collar. When the collar is in the closed state, the insertion end is inserted into the fixed collar to form a completely closed collar. or; The collar includes a fixed collar and a movable collar that moves relative to the fixed collar. The movable collar has two insertion ends that insert into the fixed collar. When the collar is in the open state, both insertion ends are separated from the fixed collar, allowing the door lock handle shaft to enter or leave the collar through the space between the movable collar and the fixed collar. When the collar is in the closed state, both insertion ends are inserted into the fixed collar to form a completely closed collar.

4. The outward-opening door stopper according to claim 3, characterized in that... The collar also includes a snap-fit ​​mechanism disposed between the fixed collar and the movable collar. The snap-fit ​​mechanism includes a slot and a pin. When the insertion end is inserted into the fixed collar, the pin is inserted into the slot. When the insertion end is separated from the fixed collar, the pin is disengaged from the slot.

5. The outward-opening door stop according to claim 4, characterized in that... The fixing collar includes a spring and a movable channel for the slot to move along the spring's extension direction, so that the slot moves between the compressed position of the spring and the extended position of the spring. When the insertion end is inserted into the fixing collar, the locking pin pushes the slot towards the compressed position through the slot end face, and slides into the slot from the slot end face under the spring force, so that the slot returns from the compressed position to the extended position. The slot includes a force-receiving end that receives external force and pushes the slot towards the compressed position. or; The fixing collar includes a spring and a movable channel for the locking pin to move along the spring's extension direction, allowing the locking pin to move between the compressed position and the extended position of the spring. When the insertion end is inserted into the fixing collar, the locking groove pushes the locking pin towards the compressed position through the groove's end face, and under the spring's elastic force, the locking pin slides into the groove from the groove's end face, causing the locking pin to return from the compressed position to the extended position. The locking pin includes a force-receiving end that receives external force and pushes the locking pin towards the compressed position. or; The fixed collar includes a spring and a movable channel for the locking pin to move along the spring's extension direction, allowing the locking pin to move between a compressed position (spring compression) and an extended position (spring extension). The locking pin also has a stop surface that abuts against the movable collar, placing the locking pin in the compressed position. During the movement of the movable collar relative to the fixed collar, the stop surface always abuts against the movable collar until the insertion end is inserted into the fixed collar. At this point, the locking pin moves towards the extended position under the spring's force and is inserted into the locking groove. The locking pin includes a force-receiving end that receives external force and pushes the locking pin towards the compressed position.

6. The outward-opening door stop according to claim 5, characterized in that... The side of the locking pin that abuts against the groove end face is a bevel or an arc surface; or, the groove end face is a bevel or an arc surface.

7. The outward-opening door stop according to claim 5, characterized in that... The locking mechanism includes at least two slots or at least two pins.

8. An outward-opening door stop according to claim 1, 2, 3, 4, 5, 6, or 7, characterized in that... There is a gap between the collar and the door lock handle shaft.

9. An outward-opening door stop according to claim 3, 4, 5, 6, or 7, characterized in that... The fixed collar is provided with a sliding channel for at least part of the movable collar to slide, and one end of the movable collar connected to the fixed collar extends into the sliding channel; or; the fixed collar and the movable collar are folded together; or; the fixed collar or the movable collar is composed of at least two folded segments.

10. An outward-opening door stop according to claim 3, 4, 5, 6, or 7, characterized in that... The collar also includes a spring connecting the fixed collar and the movable collar, the spring preventing the insertion end from being inserted into the fixed collar.

11. An outward-opening door stop according to claim 3, 4, 5, 6, or 7, characterized in that... The fixed collar and / or the movable collar are made of flexible material or chain.

12. An outward-opening door stop according to claim 1, 2, 3, 4, 5, 6, or 7, characterized in that... The connector includes a threaded adjustment mechanism that connects the force-bearing rod and the sleeve. The threaded adjustment mechanism includes a threaded rod, and the two ends of the threaded rod are threaded rod connection ends with threaded structures. The threaded structure is an external thread structure or an internal thread structure. Between the threaded rod connection ends is a threaded rod extension section that connects the two threaded rod connection ends. The threaded rod extension section and the threaded rod connection ends are an integral structure, or the threaded rod extension section includes interconnected extension segments.

13. An outward-opening door stop according to any one of claims 1, 2, 3, 4, 5, 6, or 7, characterized in that... The door stop also includes a bracket for supporting the force-bearing rod. The bracket is installed on the outward-opening door frame. The bracket consists of at least one of a long bracket with an extended length and a short bracket with a shortened length. When the outward-opening door is in the closed state, the bracket is a long bracket when the door frame thickness is less than or equal to the distance between the door lock handle and the outward-opening door surface. When the door frame thickness is greater than or equal to the distance between the door lock handle and the outward-opening door surface, the bracket is a short bracket.

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