Sliding non-magnetic door holder

Abstract

This utility model discloses a push-pull type non-magnetic door catch, including a snap-fit ​​sleeve and a mounting base. Both the snap-fit ​​sleeve and the mounting base have multiple mounting holes on their sides. The snap-fit ​​sleeve has a rotating structure with an axially penetrating insertion hole in the center. The front end of the snap-fit ​​sleeve has a locking groove with two radially connected insertion holes. A matching locking tongue is slidably connected within the locking groove. The front end of the locking tongue has a triangular wedge structure. An end cap is screwed to the outer end of the locking groove. A spring is installed between the end cap and the slider, applying a radially inward thrust to the locking tongue. A multi-angle rotatable push rod is mounted on the front side of the mounting base. A frustum-shaped locking block a is fixedly connected to the front end of the push rod. A frustum-shaped locking block b is slidably connected to the push rod behind locking block a. Locking blocks a and b are positioned opposite each other, and the maximum diameter of locking blocks a and b is smaller than the inner diameter of the insertion hole. The two parts of this door catch, when inserted, securely lock the door. To unlock and close the door, simply push the door in the opposite direction and then close it. The structure is ingeniously designed and easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of door catch technology, specifically a push-pull non-magnetic door catch. Background Technology

[0002] A door catcher is a device that uses physical or magnetic force to fix the position of a door. It is usually installed on the wall or ground about 10 centimeters above the ground behind the door to prevent the door from hitting the wall and causing damage when it is opened. When the door is open, the door catcher has a certain attraction force on the door to prevent the door from closing due to wind or accidental contact. However, most existing door catchers use the principle of magnetic attraction, which has a relatively small fixing force on the door and is difficult to meet the requirements in some high-demand situations. Utility Model Content

[0003] The purpose of this invention is to provide a push-pull type non-magnetic door catch to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a push-pull type non-magnetic door catch, including a snap-fit ​​sleeve and a mounting base. Both the snap-fit ​​sleeve and the mounting base have multiple mounting holes on their sides. The snap-fit ​​sleeve is a rotating structure with an axially penetrating insertion hole in the center. The front end of the snap-fit ​​sleeve has a locking groove with two radially connected insertion holes. A matching locking tongue is slidably connected in the locking groove. The front end of the locking tongue is a triangular wedge structure, and the rear end of the locking tongue is a cylindrical slider. An end cap is screwed to the outer end of the locking groove. A spring is provided between the end cap and the slider. The spring applies a radially inward thrust to the locking tongue. A push rod that can rotate at multiple angles is installed on the front side of the mounting base. A frustum-shaped locking block a is fixedly connected to the front end of the push rod. A frustum-shaped locking block b is slidably connected to the push rod behind the locking block a. The locking blocks a and b are arranged opposite each other. The large end diameter of the locking block a is smaller than the large end diameter of the locking block b, and the large end diameters of both are smaller than the inner diameter of the insertion hole.

[0005] Preferably, the front end of the socket is chamfered to form a flared structure.

[0006] Preferably, the push rod has a ball head at its rear end, and the ball head is ball-jointed with the mounting base. The diameter of the front end of the push rod is reduced to form a step, which is used to limit the backward movement of the locking block b.

[0007] Compared with the prior art, the advantages of this utility model are: the two parts of the door catch can be firmly locked to the door after being plugged in, and the door can be unlocked and closed by pushing the door in the opposite direction first and then closing the door. The structure is ingenious and easy to operate. Attached Figure Description

[0008] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0009] Figure 2This is a three-dimensional structural diagram of the locking tongue.

[0010] In the diagram: 1. Snap-fit ​​sleeve; 2. Mounting base; 3. Push rod; 4. Locking block b; 5. Locking block a; 6. Locking tongue; 7. Spring; 8. End cap. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0012] Please see Figure 1-2 This utility model provides a technical solution: a push-pull type non-magnetic door catch, including a snap-fit ​​sleeve 1 and a mounting base 2. Both the snap-fit ​​sleeve 1 and the mounting base 2 have multiple mounting holes on their sides. The snap-fit ​​sleeve 1 and the mounting base 2 are respectively installed on the back of the door and on the wall. The snap-fit ​​sleeve 1 has a rotating structure and an axially penetrating insertion hole in the center. The front end of the insertion hole is chamfered to form a flared structure, which guides the insertion during mating. The front end of the snap-fit ​​sleeve 1 has a locking groove with two radially connected insertion holes. A matching latch 6 is slidably connected within the locking groove. The front end of the latch 6 is a triangular wedge structure, and the rear end of the latch 6 is a cylindrical slider. An end cap 8 is screwed to the outer end of the locking groove. A spring 7 is provided between the end cap 8 and the slider, and the spring 7 applies a radially inward thrust to the latch 6.

[0013] The push rod 3 has a ball head at its rear end, which is ball-jointed with the mounting base 2. This allows the push rod 3 to rotate at multiple angles within a certain range and maintain its posture after rotation. A frustum-shaped locking block a5 is fixedly connected to the front end of the push rod 3. A frustum-shaped locking block b4 is slidably connected to the push rod 3 behind the locking block a5. The locking blocks a5 and b4 are positioned opposite each other with their large ends close to each other. The diameter of the large end of the locking block a5 is smaller than that of the large end of the locking block b4, and both large end diameters are smaller than the inner diameter of the insertion hole. This ensures that when the push rod 3 is inserted into the insertion hole, the locking tongue 6 can be locked between the two locking blocks. The diameter of the front end of the push rod 3 decreases to form a step. The step is used to limit the backward movement of the locking block b4. When the locking block b4 moves to its rearmost end, the gap between the locking blocks a5 and b4 is greater than the width of the locking tongue 6.

[0014] Working principle: After the door is opened, push rod 3 is inserted into the mortise hole, and the front end of latch 6 slides past block a5 and then inserts between block a5 and block b4 (i.e., Figure 1 (As shown in the diagram), the push rod 3 cannot be pulled out, so the door cannot be closed and is fixed in the open position. When it is necessary to close the door, first push the door in the opening direction. At this time, the front end of the latch 6 slides to the conical surface of the locking block b4. Then push it in the closing direction. The locking block b4 adheres to the locking block a5. The front end of the latch 6 slides past the locking block b4 and the locking block a5 in sequence to disengage.

[0015] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A push-pull type non-magnetic door catch, comprising a snap-fit ​​sleeve (1) and a mounting base (2), wherein the snap-fit ​​sleeve (1) and the mounting base (2) are provided with multiple mounting holes on their sides, characterized in that: The snap-fit ​​sleeve (1) is a rotating body structure with an axial through-hole in the middle. The front end of the snap-fit ​​sleeve (1) has a locking groove with two radially connected insertion holes. A matching locking tongue (6) is slidably connected in the locking groove. The front end of the locking tongue (6) is a triangular wedge structure, and the rear end of the locking tongue (6) is a cylindrical slider. An end cap (8) is screwed to the outer end of the locking groove. A spring (7) is provided between the end cap (8) and the slider. The spring (7) applies pressure to the locking tongue (6). Apply radial inward thrust. The front side of the mounting base (2) is equipped with a push rod (3) that can rotate at multiple angles. The front end of the push rod (3) is fixedly connected to a frustum-shaped locking block a (5). The push rod (3) is slidably connected to a frustum-shaped locking block b (4) on the rear side of the locking block a (5). The locking block a (5) and the locking block b (4) are arranged opposite to each other. The large end diameter of the locking block a (5) is smaller than the large end diameter of the locking block b (4), and the large end diameters of both are smaller than the inner diameter of the insertion hole.

2. The push-pull non-magnetic door catch according to claim 1, characterized in that: The front end of the socket is chamfered to form a flared structure.

3. The push-pull non-magnetic door catch according to claim 1, characterized in that: The push rod (3) has a ball head at its rear end and the ball head is ball-jointed with the mounting base (2). The diameter of the front end of the push rod (3) is reduced to form a step. The step is used to limit the backward movement of the locking block b (4).

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