Time-delay door stopper

Abstract

The utility model discloses a time-delay door stopper. A time-delay device of the time-delay door stopper comprises a mechanical timer, a rotating body, a lever locking block, a swing block and a locking block reset spring. When in use, the touch piece is utilized to drive the timer to wind up the spring for timing through the swing block and the rotating body in sequence, and meanwhile, the rotating body prizes the lever locking block to swing to hook the touch piece so as to keep an open door state; and next, along with the swinging resetting of the timer, the rotating body slowly relieves the continuous prying of the lever locking block, so that the lever locking block swings and resets under the action of the locking block reset spring and then relieves the locking of the touch piece, and the door is automatically closed under the action of the door closer, thereby achieving the purpose of closing the door in a delayed manner. Due to the fact that the number of parts needed by the time-delay door stopper is small, and the mechanical timer is adopted, wiring is not needed, use cannot be affected by power failure and insufficient electric quantity, and therefore the time-delay door stopper is simple and reasonable in structure, convenient to install and use, low in production cost and beneficial to application and popularization, and generality of the door stopper is improved.

Description

Technical Field

[0001] The utility model relates to a door stopper which is mainly used on a public rental housing door or a fire-fighting door. Background Art

[0002] We know that in houses with a large number of residents or outsiders, such as public rental housing, hospitals and other public places, their public doors or fire doors are often installed with door suction to facilitate people's entry and exit, and can also delay automatic closing. At present, there are mainly two ways to achieve the door suction delay fixed open state of the door: one is to use the magnetic card lock method, and the other is to use electromagnetic door suction. Since both methods require wiring (that is, wiring must be used to lead electricity to the magnetic card lock or electromagnetic door suction, which is not only troublesome to install and has a high cost of use; and in case of power outage or low electricity, it is impossible to achieve delayed closing, so the versatility (applicability) of use is subject to certain restrictions. Summary of the invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a time-delay door catch which has a simple and reasonable structure, is easy to install and use, and has a low production cost, which is conducive to popularization and application, thereby improving the versatility of the door catch.

[0004] In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

[0005] A time-delay door stopper, comprising a touch piece and a time-delay device, wherein:

[0006] The touch member is installed on the door, and comprises a touch seat and a touch arm; a delay hook is provided at the front end of the touch arm;

[0007] The delay device comprises a main body, a mechanical timer, a rotating body, a lever locking block, a pendulum block and a locking block reset spring arranged in the main body; the timer is fixed in the main body; the rotating body is arranged on the rotating shaft of the timer; a locking arc position, an unlocking arc position and a force arm are arranged on the rotating body; the radius of the locking arc position is larger than the radius of the unlocking arc position; after the lever locking block is swingably connected in the main body, the prying position at its inner end can slide along the arc-shaped walls of the locking arc position and the unlocking arc position, and the outer end is provided with a locking hook that can be hooked on the delay hook; after the pendulum block is swingably connected in the main body, it can act on the force arm of the rotating body when rotating counterclockwise, so that it drives the timer to rotate and time; after the locking block reset spring is arranged in the main body, it can make the lever locking block swing to release the lock on the touch arm;

[0008] When the touch arm of the touch member is inserted into the main body, it can act on the swing block to make it swing counterclockwise.

[0009] In an improved solution to the above-mentioned delayed door stopper, a knob is installed after the rotating shaft of the rotating body is exposed outside the cover plate of the main body.

[0010] In an improvement to the above-mentioned time-delay door stopper, an adjusting screw for limiting the depth of insertion of the touch member into the time-delay device is provided on the main body.

[0011] In an improvement to the above-mentioned delayed door stopper, a bearing is provided at the prying position of the lever locking block.

[0012] In an improvement to the above-mentioned delayed door stopper, a decorative cover capable of shielding the touch arm is provided on the touch member.

[0013] In the improvement scheme of the above-mentioned delayed door stopper, the locking block reset spring is a U-shaped spring, a torsion spring or a tension spring.

[0014] In an improvement to the above-mentioned delayed door stopper, a swing block limiter is provided on the main body.

[0015] Compared with the prior art, the utility model has the following beneficial effects: since the delay device includes a mechanical timer, a rotating body, a lever locking block, a swing block and a locking block reset spring, when in use, the touch piece on the door is used to drive the timer to wind up through the swing block and the rotating body in turn, while the rotating body pries the lever locking block to swing to hook the touch piece, so that the door remains in an open state; next, as the timer swings and resets, the rotating body slowly releases the continued prying of the lever locking block, so that under the action of the locking block reset spring, the lever locking block swings and resets to release the lock on the touch piece, so that the door automatically closes under the action of the door closer, thereby achieving the effect of delayed door closing. It can be seen from the above that the delayed door stopper requires fewer parts and a mechanical timer is used, so no wiring is required, and the use will not be affected by power outages or insufficient power. Therefore, the utility model has a simple and reasonable structure, is easy to install and use, has a low production cost, and is conducive to popularization and application, thereby improving the versatility (applicability) of the door stopper.

[0016] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model Figure 1 ;

[0018] Figure 2 It is a three-dimensional schematic diagram of an embodiment of the utility model Figure 2 (When the cover and decorative cover are not installed);

[0019] Figure 3 It is a three-dimensional schematic diagram of an embodiment of the utility model Figure 3(When the cover and decorative cover are not installed);

[0020] Figure 4 It is a schematic diagram of the assembly of an embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the state changes of some components of the embodiment of the utility model before and after the door is opened. DETAILED DESCRIPTION

[0022] The utility model is a time-delay door stopper. Figures 1 to 5 As shown, it includes a touch member 1 and a delay device 2, wherein:

[0023] The touch member 1 is installed on the door, and comprises a touch seat 11 and a touch arm 12; a delay hook 121 is provided at the front end of the touch arm 12;

[0024] The time delay device 2 comprises a main body 21, a mechanical timer 22, a rotating body 23, a lever locking block 24, a swing block 25 and a locking block reset spring 26 arranged in the main body 21; the timer 22 is fixed in the main body 21; the rotating body 23 is arranged on the rotating shaft 221 of the timer 22; a locking arc position 231, an unlocking arc position 232 and a force arm 233 are arranged on the rotating body 23; the radius of the locking arc position 231 is larger than the radius of the unlocking arc position 232; the lever locking block 24 is swingably connected to the After the main body 21 is inserted, the prying position 241 at the inner end thereof can slide along the arc-shaped wall of the locking arc position 231 and the unlocking arc position 232, and the outer end is provided with a locking hook 242 that can hook on the delay hook 121; after the swing block 25 is swingably connected to the main body 21, it can act on the force arm 233 of the rotating body 23 when rotating counterclockwise, so that it drives the timer 22 to rotate (clockwise) for timing; after the locking block reset spring 26 is arranged in the main body 21, it can make the lever locking block 24 swing to release the lock on the touch arm 12;

[0025] When the touch arm 12 of the touch member 1 is inserted into the main body 21, it can act on the swing block 25 to make it swing counterclockwise; then, the swing block 25 makes the rotating body 23 drive the timer 22 to wind up the timing, at this time, the prying position 241 at the inner end of the lever locking block 24 slides from the unlocking arc position 232 to the locking arc position 231, and makes the lever locking block 24 swing clockwise after overcoming the action of the locking block reset spring 26, so that the locking hook 242 of the lever locking block 24 can be hooked on the delay hook 121 of the touch member 1, so as to keep the door open. Next, the timer 22 starts to release the mainspring and enters the countdown, which drives the rotating body 23 to rotate in the opposite direction. As the prying position 241 at the inner end of the lever locking block 24 slides from the locking arc position 231 to the unlocking arc position 232, the lever locking block 24 swings and resets under the action of the locking block reset spring 26, so that the locking hook 242 of the lever locking block 24 can be disengaged from the delay hook 121 of the contact member 1. As a result, the door is automatically closed under the action of the door closer, thereby achieving the purpose of delayed closing.

[0026] Figure 5 The diagram shows the state changes of the components of the delay device during the door opening operation, wherein the top diagram is the initial state; the middle diagram is the state diagram in which the contact piece is inserted to the innermost position; and the bottom diagram is the door opening (locked) state.

[0027] Since the delay device 2 includes a mechanical timer 22, a rotating body 23, a lever locking block 24, a swing block 25 and a locking block reset spring 26, and the touch member 1 when opening the door is driven to wind up the timer 22 through the swing block 25 and the rotating body 23 in turn, the rotating body 23 pries the lever locking block 24 to swing and hook the touch member 1, so that the door remains in the open state; next, as the timer swings and resets, the rotating body 23 releases the continued prying of the lever locking block 24, so that under the action of the locking block reset spring 26, the lever locking block 24 swings and resets to release the lock on the touch member 1, so that the door is automatically closed under the action of the door closer, achieving the effect of delayed closing. It can be seen from the above that the delayed door stopper requires fewer parts and a mechanical timer is used, so no wiring is required, and the use will not be affected by power outages. Therefore, the utility model has a simple and reasonable structure, is easy to install and use, has a low production cost, and is conducive to popularization and application, thereby improving the versatility (applicability) of the door stopper.

[0028] In this embodiment, if Figure 1As shown, the rotating shaft 234 of the rotating body 23 is exposed from the cover plate 211 of the main body 21, and a knob 27 is installed. After opening the door, if you do not want to delay closing the door, you can turn the knob 27 (counterclockwise) to quickly reset the timer 22 to zero. When the prying position 241 at the inner end of the lever locking block 24 quickly slides from the locking arc position 231 of the rotating body 23 to the unlocking arc position 232, under the action of the locking block reset spring 26, the lever locking block 24 swings and resets, thereby releasing the lock on the contact member 1, and achieving the purpose of not delaying the door closing. In this case, it is suitable for emergency situations such as fire, and the delay can be quickly released, and the door can be quickly closed to prevent smoke from spreading to other places, thereby improving safety in the event of a fire.

[0029] Preferably, an adjusting screw 28 is provided on the main body 21 for limiting the insertion depth of the touch member 1 into the delay device 2. When the touch member 1 is blocked by the adjusting screw 28, the insertion stops, and then the timer 22 stops rotating. In this way, the user can turn the adjusting screw 28 to adjust the timing time of the timer according to actual needs.

[0030] Preferably, a bearing 243 is provided at the prying position 241 of the lever locking block 24 to reduce wear of the prying position and reduce resistance during sliding.

[0031] In this embodiment, a decorative cover 13 is provided on the touch member 1 to cover the touch arm 12. Figure 1 shown.

[0032] In this embodiment, if Figure 3 , 4 As shown, the locking block return spring 26 is a U-shaped spring, which is arranged in the spring movable groove 212 of the main body; of course, it can also be a torsion spring or a tension spring, etc.

[0033] In this embodiment, if Figure 2 As shown, a swing block limiter 213 is provided on the main body 21 to prevent the swing block from swinging outward at too large an angle, thereby causing the touch member to be unable to push it to swing inward.

[0034] In the description of the present invention, it should be understood that the directions or positional relationships indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "counterclockwise" and "clockwise" 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. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0035] Although the utility model is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications can be made to the utility model without departing from the principle and spirit of the utility model defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the utility model, but the scope of protection is limited by the content of the claims.

Claims

1. A time-delay door stopper, characterized in that: It includes a touch piece and a delay device, wherein: The touch member is installed on the door, and comprises a touch seat and a touch arm; a delay hook is provided at the front end of the touch arm; The delay device comprises a main body, a mechanical timer, a rotating body, a lever locking block, a pendulum block and a locking block reset spring arranged in the main body; the timer is fixed in the main body; the rotating body is arranged on the rotating shaft of the timer; a locking arc position, an unlocking arc position and a force arm are arranged on the rotating body; the radius of the locking arc position is larger than the radius of the unlocking arc position; after the lever locking block is swingably connected in the main body, the prying position at its inner end can slide along the arc-shaped walls of the locking arc position and the unlocking arc position, and the outer end is provided with a locking hook that can be hooked on the delay hook; after the pendulum block is swingably connected in the main body, it can act on the force arm of the rotating body when rotating counterclockwise, so that it drives the timer to rotate and time; after the locking block reset spring is arranged in the main body, it can make the lever locking block swing to release the lock on the touch arm; When the touch arm of the touch member is inserted into the main body, it can act on the swing block to make it swing counterclockwise.

2. The time-delay door stopper according to claim 1, characterized in that: A knob is arranged after the rotating shaft of the rotating body is exposed outside the cover plate of the main body.

3. The time-delay door stopper according to claim 1 or 2, characterized in that: An adjusting screw for limiting the insertion depth of the touch piece into the delay device is arranged on the main body.

4. The time-delay door stopper according to claim 1 or 2, characterized in that: A bearing is arranged at the prying position of the lever locking block.

5. The time-delay door stopper according to claim 1 or 2, characterized in that: The touch member is provided with a decorative cover which can cover the touch arm.

6. The time-delay door stopper according to claim 1 or 2, characterized in that: The locking block return spring is a U-shaped spring, a torsion spring or a tension spring.

7. The time-delay door stopper according to claim 1 or 2, characterized in that: A swing block limiter is arranged on the main body.

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