Device and method for testing door frame of fireproof door equipment

Abstract

The invention discloses a fireproof door equipment door frame testing device and a testing method thereof.The fireproof door equipment door frame testing device comprises a door frame to be tested, the door frame is rotationally provided with a lock hole piece, the lock hole piece is locked through a locking piece, the locking piece unlocks the lock hole piece in a high-temperature state, and the testing device comprises a testing platform, a movable frame and a testing device body; a positioning mechanism for positioning a door frame is arranged on the test platform, the moving frame is arranged on the test platform, and the test device comprises a pressing device for pressing the door frame. The invention provides a testing device for a door frame of fireproof door equipment and a testing method thereof, which can be used for performing conventional locking test on the door frame and simulating an out-of-trouble test on whether the door frame can be automatically unlocked or not under a fire hazard condition, so as to ensure that the locking relationship between each door frame leaving a factory and a spring bolt is automatically released under the fire hazard condition; and therefore, the door opening operation can be quickly carried out, and the personal safety of indoor personnel is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of door frame testing, in particular to a testing device and a testing method for a fire door equipped with a door frame. Background Art

[0002] The door frame is fixedly installed on the wall and cooperates with the door leaf to lock the door leaf. The function of a fire door is to isolate the fire on one side, that is, not to allow the fire to spread to the other side.

[0003] As described in the patent with publication number CN115434622A, the fire door combines anti-theft and fire prevention, enabling the anti-theft door used in ordinary families to also have the characteristics of a fire door, thereby isolating the inside and outside of the house.

[0004] When a fire breaks out inside the house, the door leaf needs to be opened quickly. Therefore, a quick-opening device is equipped on the door frame. Before leaving the factory, the quick-opening device on the door frame needs to be tested to ensure that the quick-opening device can operate normally when a fire breaks out inside the house for each fire door. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a testing device and a testing method for a fire door equipped with a door frame. By simulating a fire inside the house, it is detected whether the lock tongue can quickly leave the lock hole position, and then it is judged whether the quick-opening device can be used normally.

[0006] To solve the above technical problems, the present invention is solved by the following technical solutions: A testing device for a fire door equipped with a door frame includes a door frame to be tested. A lock hole member is rotatably arranged on the door frame and is locked by a locking member. The locking member releases the locking of the lock hole member in a high-temperature state. The testing device includes a test platform, a moving frame, and a testing device. A positioning mechanism for positioning the door frame is arranged on the test platform. The moving frame is arranged on the test platform. The testing device includes a pressing device for pressing the door frame, a lock tongue device for detecting the lock hole of the door frame, and a heating unit for heating the space above the lock hole member on the door frame. The lock hole of the door frame can rotate after heating. The lock tongue device includes a second hydraulic member and is arranged on the pressing device through the second hydraulic member. The second hydraulic member expands and contracts to drive the lock tongue device to move up and down. The lock tongue device first conducts a locking test on the lock hole member. After heating the space above the lock hole member by the heating unit, the lock tongue device then conducts an unlocking test on the lock hole member.

[0007] The beneficial effect is that through this testing device, a conventional locking test on the door frame and an unlocking test on whether the door frame can be automatically unlocked under simulated fire conditions can be carried out, ensuring that each door frame leaving the factory can be automatically unlocked in case of a fire and improving the safety of the product.

[0008] In the above solution, preferably, the pressing device includes a pressing frame and a first hydraulic component. A pressing block is arranged on the pressing frame. The pressing frame is connected to the moving frame through the first hydraulic component. When the first hydraulic component extends, it drives the pressing frame to move downward to press the lower door frame.

[0009] In the above solution, preferably, the locking tongue device includes a telescopic locking tongue. A first inclined surface is arranged on the bottom surface of the telescopic locking tongue. When the pressing device moves downward to press the door frame, the first inclined surface on the telescopic locking tongue presses against the lock hole component and retracts into the locking tongue device, and then pops out and extends into the locking hole of the lock hole component.

[0010] In the above solution, preferably, two pressing blocks are arranged on the lower end surface of the pressing frame and respectively press against the left and right sides of the lock hole component on the door frame. A displacement sensor is also arranged on the pressing frame. The displacement sensor is used to detect the displacement of the locking tongue device moving up and down.

[0011] In the above solution, preferably, a tension and compression sensor is arranged on the second hydraulic component to monitor the force state of the second hydraulic component. During the locking test, a set pulling force is applied to the lock hole component, and the stability of the door frame locking is judged by identifying the displacement of the locking tongue device.

[0012] In the above solution, preferably, a heating unit is also arranged on the test platform to heat the lock hole component on the outer side of the door frame during the locking test.

[0013] In the above solution, preferably, a telescopic block is arranged on the door frame. A sliding groove is formed on the rear end surface of the lock hole component. The telescopic block extends into the sliding groove to lock the lock hole component from rotating and reduce the space size of the locking hole for matching with the lock hole.

[0014] In the above solution, preferably, the head of the telescopic block extends into the locking hole and is flush with the front end surface of the lock hole component to reduce the space size of the locking hole in the initial state. When the telescopic block retracts, the rotational locking of the locking hole is released, and at the same time, the space size of the locking hole increases.

[0015] Testing method using the testing device: S1: Position and place the door frame on the test platform through the manipulator.

[0016] S2: The moving frame moves the testing device above the lock hole component of the door frame.

[0017] S3: The second hydraulic component starts to contract to conduct the locking test on the door frame.

[0018] S4: After the locking test is completed, the second hydraulic component resets, and the heating unit starts to heat above the lock hole component to simulate a fire.

[0019] S5: After the temperature rises to the set value, the second hydraulic component is started again to detect whether the locking tongue device can be completely moved out of the door frame.

[0020] In the above scheme, preferably, in S3, when the reading on the tension and compression sensor is greater than N, the displacement sensor starts working, and when the reading of the tension and compression sensor reaches the set value, the qualified state of the door frame is judged by comparing the reading of the displacement sensor with the value stored in the central control unit.

[0021] The beneficial effects of the present invention are as follows: the present invention provides a testing device and a testing method for a door frame equipped with a fireproof door, which can perform conventional locking tests on the door frame and escape tests to determine whether the door frame can be automatically unlocked under simulated fire conditions, thereby ensuring that each door frame leaving the factory automatically releases the locking relationship with the lock tongue under fire conditions, and can then quickly perform door opening operations to ensure the personal safety of people inside the house. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the present invention.

[0023] Figure 2 It is a cross-sectional view of the present invention.

[0024] Figure 3 Schematic diagram of the testing device of the present invention.

[0025] Figure 4 This is a partial enlarged view of the locking test of the present invention.

[0026] Figure 5 Schematic diagram of the door frame to be tested in the present invention Figure 6 This is an exploded view of the door frame of the present invention.

[0027] Figure 7 It is a schematic diagram of the rotation state of the keyhole member of the present invention. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: Example 1

[0029] See also Figures 1 - 7, a test device for a fire door equipped with a door frame, including a door frame 4 to be tested. A first notch 43 is provided on the door frame 4, and a lock hole member 41 is rotatably limited on the first notch 43. The lock hole member 41 can rotate 20 - 50 degrees towards the inner side of the door frame 4. A telescopic block 42 is also arranged on the door frame 4. The telescopic block 42 is a locking member for locking the lock hole member 41 to prevent it from rotating. A piston telescopic member 421 is arranged on the rear end face of the telescopic block 42. The piston telescopic member 421 includes a piston rod 4211 and a piston barrel 4212. A first elastic member 4213 is arranged in the piston barrel 4212, and the first elastic member 4213 is also sleeved on the piston rod 4211. The two ends of the first elastic member 4213 respectively abut against the front end face of the piston ring of the piston rod 4211 and the front end face of the inner cavity of the piston barrel 4212. A circulation inlet and outlet hole is provided on the rear end face of the piston barrel 4212, and a temperature-sensitive switch member is arranged on the circulation inlet and outlet hole. At high temperature, the temperature-sensitive switch member can control the opening of the circulation inlet and outlet hole. Under the action of the first elastic member, the piston rod 4211 retracts backward, driving the telescopic block 42 to slide backward.

[0030] A locking hole 411 for cooperating with the lock tongue to lock is arranged on the lock hole member 41. A sliding notch 412 is also provided on the rear end face of the lock hole member 41. The telescopic block 42 is guided to slide on the door frame 4 and extends in and out of the end face of the first notch 43. In the initial state, the lower end face of the locking member 41 presses against the bottom surface of the first notch 43. At this time, the sliding notch 412 is aligned with the telescopic block 42, and the telescopic block 42 extends forward, so that the head on the telescopic member 42 extends into the locking hole 411 from the sliding notch 412. And at this time, the upper end face of the telescopic block 42 abuts against the upper end face of the locking hole 411, thereby preventing the lock hole member 41 from rotating.

[0031] When cooperating with the lock tongue to lock, the plane of the lock tongue abuts against the lower end face of the telescopic block 42, thereby preventing the lock tongue from moving upward, thus playing a locking role.

[0032] Heat insulation cotton or its heat insulation material is arranged in the door frame 4 to isolate the heat outside the door frame 4. In the initial state, the piston barrel 4212 is filled with fluid. At this time, the piston rod 4211 is in the extended state, that is, the telescopic block 42 is in the extended state. The front end face of the telescopic block 42 is flush with the front end face of the lock hole member 41, and the lock hole member 41 is locked by the telescopic block 42.

[0033] When a fire breaks out outside the door frame 4 at this time, the heat outside the door frame 4 will not be transmitted to the temperature-sensitive switch component. When a fire breaks out inside the house, the temperature-sensitive switch component can recognize the high temperature, and then open the circulation inlet and outlet holes on the rear end face of the piston barrel 4212. The piston rod 4211 moves backward under the action of the first elastic member, and the fluid in the piston barrel 4212 can be discharged from the rear end. Then, the telescopic block 42 moves backward out of the sliding notch 412 and completely retracts into the side wall of the first notch 43, leaving the rotation space of the lock hole member 41. The lock hole member 41 is in an unlocked state. At the same time, the locking hole 411 in the lock hole member 41 for cooperating with the lock tongue expands, so that the lock tongue can quickly move out.

[0034] The temperature-sensitive switch component can be controlled by an electric control switch or be a pure mechanical type composed of a bimetallic strip and a push switch. The push switch is arranged on the circulation inlet and outlet holes. When the push switch is pressed, it is in an open state. The bimetallic strip is used to recognize the temperature. When the indoor temperature reaches the set temperature, the bimetallic strip deforms and presses on the push switch, thereby opening the circulation inlet and outlet holes.

[0035] The test device includes a test platform 1, a moving frame 3, and a test device 2. A positioning mechanism for positioning the door frame is arranged on the test platform 1. The positioning mechanism is a positioning column fixedly arranged on the test platform 1. The positioning column is fixedly arranged on the test platform 1 through bolts and is used to position the four inner corners of the door frame 4. By changing the position of the positioning column, different sizes and types of door frames can be adapted for testing.

[0036] A slide rail is arranged on the test platform 1. The moving frame 3 is guided and slidably arranged on the slide rail and is controlled by a servo motor to move on the slide rail. The test device 2 is arranged on the moving frame 3.

[0037] In the initial state, the door frame 4 is positioned and placed on the test platform 1 by a manipulator and is positioned by four positioning columns. The moving frame 3 starts to move, and then moves the test device 2 above the door frame 4 positioned and placed on the test platform 1.

[0038] The test device 2 includes a pressing device 21 and a locking tongue device 22. The pressing device 21 includes a pressing frame 211, a first hydraulic component 212, and a pressing contact block 213. There are two pressing contact blocks 213, both fixedly arranged on the lower end surface of the pressing frame 211 for directly pressing on the door frame 4. The first hydraulic component 212 is arranged on the moving frame 3. The telescopic rod of the first hydraulic component 212 is fixedly connected to the pressing frame 211, and a guiding rod is arranged on the pressing frame 211. The guiding rod is arranged to slide up and down in a guiding manner on the moving frame 3. When the first hydraulic component 212 extends downward, it drives the pressing frame 211 to move downward, so that the pressing contact block 213 presses on the positioned door frame 4. When the pressing contact block 213 presses on the door frame 4, the two pressing contact blocks 213 respectively press on both sides of the first notch 43, pressing the position of the door frame 4 where the lock hole component 41 is arranged. An elastic component is arranged on the lower end surface of the pressing contact block 213 for elastic contact with the door frame 4.

[0039] The locking tongue device 22 includes a second hydraulic component 221, a telescopic locking tongue 222, and a locking tongue frame 223. The telescopic locking tongue 222 is arranged to slide elastically and in a guiding manner on the side wall of the locking tongue frame 223. The upper end surface of the telescopic locking tongue 222 is a plane and the lower end is provided with a first inclined surface. The locking tongue frame 223 is arranged to slide up and down in a guiding manner on the pressing frame 211. The rear end of the second hydraulic component 221 is connected to the pressing frame 211, and the front end of the telescopic rod is connected to the locking tongue frame 223. The telescopic movement of the second hydraulic component 221 can drive the locking tongue frame 223 to move up and down in a guiding manner.

[0040] A tension and compression sensor is arranged at the head of the telescopic rods of both the first hydraulic component 212 and the second hydraulic component 221 for testing and detecting the force state of the hydraulic components. At the same time, a displacement sensor 214 is arranged on the pressing frame 211. The displacement sensor 214 is used to monitor the up and down displacement state of the locking tongue frame 223. At the same time, a heating unit is arranged at the middle position between the two pressing contact blocks 213 of the pressing frame 211. When the pressing frame 211 presses the door frame 4, the heating unit on the pressing frame 211 is located above the lock hole component 41.

[0041] The heating unit on the pressing frame 211 is used to simulate the indoor fire state.

[0042] Its working principle or usage method is as follows: After the manipulator positions and places the door frame 4 on the test platform 1, the moving frame 3 moves the test device 2 above the lock hole component 41 of the door frame 4. At this time, the lock hole component 41 is locked by the telescopic block 42. The first hydraulic component 212 starts to descend, and then the two pressing contact blocks 213 press on both sides of the first notch 43 of the door frame 4. When the value of the tension and compression sensor on the first hydraulic component 212 reaches the set value, the first hydraulic component 212 stops descending and holds the pressure. At this time, the vicinity of the first notch 43 of the door frame 4 is pressed tightly.

[0043] During the pressure drop of the clamping frame 211, the lock tongue frame 223 is driven to move downward together, and the first inclined surface of the lower end of the telescopic lock tongue 222 presses on the lock hole member 41. During the descending process of the lock tongue frame 223, the telescopic lock tongue 222 is elastically retracted into the lock tongue frame 223 under the action of the first inclined surface. After the telescopic lock tongue 222 passes through the telescopic block 42, the telescopic tongue lock 222 is aligned with the locking hole 411 of the lock hole member 41, and then automatically extends into the locking hole 411, simulating the state of locking the door.

[0044] At this time, the second telescopic part 221 begins to shrink. When the tension and compression sensor on the second telescopic part 221 is greater than 10N, the displacement sensor starts to work and detects the lock tongue frame 223. When the tension and compression sensor value on the second telescopic part 221 reaches the set value, the displacement value identified by the displacement sensor is used to analyze the deformation or displacement state of the lock hole part 41. By comparing the detected displacement value with the value stored in the central control unit, the stability of the door frame 4 in the locked state is judged, that is, a locking test is performed to determine whether the door frame 4 is qualified.

[0045] The temperature-sensitive switch on the door frame 4 can be automatically opened when the ambient temperature is greater than or equal to 150 degrees Celsius, so that the telescopic block 42 retracts into the side wall of the first notch 43 under the action of elastic force, thereby unlocking the lock hole member 41.

[0046] After the locking test is completed, a release test is performed, that is, the heating unit on the pressing frame 211 is started, the temperature is raised to greater than or equal to 150 degrees Celsius, and whether the locking hole member 41 is unlocked is detected.

[0047] The detection method is that the second telescopic part 221 starts to contract, and detects whether the second telescopic part 221 can be completely contracted, that is, the telescopic lock tongue 222 is moved vertically upward out of the door frame 4 area. If it can be moved vertically, it means that the lock hole part 41 is automatically unlocked, and the door frame 4 can be automatically unlocked. After the test is completed, the fluid is pressed into the piston barrel 4212 to make the telescopic block 42 extend into the lock hole part 41 again, and the lock hole part 41 is locked again.

[0048] During the test, the tension and compression sensor is in working state. When the value on the tension and compression sensor reaches the set value, that is, the telescopic lock tongue 222 is stuck in a certain position, then it is determined that the door frame 4 is unqualified and needs to be repaired.

[0049] At this point, the test of the door frame 4 is completed, and the locking ability of the door frame 4 under normal conditions and the automatic escape ability of the door frame 4 when a fire occurs in the house are tested. Example 2

[0050] This embodiment makes the following further improvements on the basis of embodiment 1: Figures 1 - 7, a heating unit is configured on the test platform 1. When the door frame 4 is positioned and placed on the test platform 1, the keyhole part 41 is located above the heating unit of the test platform 1, wherein the heating unit on the test platform 1 is used to simulate the outdoor fire state.

[0051] After the locking test is completed, the second telescopic member 221 returns to its initial position. At this time, the value of the tension and compression sensor on the second telescopic member 221 is zero. At this time, the central control unit controls the heating unit on the test platform 1 to heat, so that the temperature of the area of the test platform 1 below the keyhole part 41 rises to greater than or equal to 800 degrees Celsius to simulate the outdoor fire state. At this time, the locking test is carried out again, and it is judged whether the door frame 4 is qualified through the displacement value. This step is used to monitor whether the locking of the door frame will fail when the outside of the door frame is monitored, and at the same time, it can also simulate whether the locking of the door frame will fail when a thief bakes the outside of the door frame 4 with a flame.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A test device for a fire door frame, characterized in that: The door frame (4) to be tested comprises a door frame (4) on which a locking hole component (41) is rotatably arranged, and the locking hole component (41) is locked by a locking component, and the locking component releases the locking hole component (41) in a high temperature state; The test device comprises a test platform (1), a mobile frame (3) and a test device (2); the test platform (1) is provided with a positioning mechanism for positioning a door frame; the mobile frame (3) is arranged on the test platform (1); the test device (2) comprises a pressing device (21) for pressing the door frame, a lock tongue device (22) for detecting a lock hole of the door frame, and a heating unit for heating a space above a lock hole member on the door frame; the lock hole of the door frame can rotate after being heated; The locking tongue device (22) comprises a second hydraulic component (221), and is arranged on the pressing device (21) via the second hydraulic component (221), and the second hydraulic component (221) is extended and retracted to drive the locking tongue device (22) to move up and down; The locking tongue device (22) first performs a locking test on the locking hole component, and after heating the space above the locking hole component through the heating unit, the locking tongue device (22) then performs an escape test on the locking hole component.

2. A fire door equipment door frame testing device according to claim 1, characterized in that: The clamping device (21) comprises a clamping frame (211) and a first hydraulic component (212); a pressure contact block (213) is arranged on the clamping frame (211); the clamping frame (211) is connected to the movable frame (3) via the first hydraulic component (212); the first hydraulic component (212) extends to drive the clamping frame (211) to move downward, thereby clamping the door frame (4) below.

3. A testing device for a fire door frame according to claim 2, characterized in that: The locking tongue device (22) comprises a telescopic locking tongue (222), a first inclined surface being arranged on the bottom surface of the telescopic locking tongue (222), the pressing device (21) moves downward to press the door frame, the first inclined surface on the telescopic locking tongue (222) presses against the locking hole component (41) and retracts into the locking tongue device (22), and then pops out and extends into the locking hole (411) of the locking hole component (41).

4. A testing device for a fire door frame according to any one of claims 1 to 3, characterized in that: Two pressure contact blocks (213) are arranged on the lower end surface of the pressure contact frame (211), and respectively press on the left and right sides of the lock hole member (41) on the door frame. The pressure contact frame (211) is also arranged with a displacement sensor, and the displacement sensor is used to detect the displacement of the lock tongue device (22) when it moves up and down.

5. A testing device for a fire door frame according to claim 4, characterized in that: The second hydraulic component (221) is provided with a tension and compression sensor for monitoring the stress state of the second hydraulic component (221). When performing a locking test, a set tension is applied to the lock hole component (41) and the locking stability of the door frame is determined by identifying the displacement of the lock tongue device (22).

6. A testing device for a fire door frame according to claim 5, characterized in that: The test platform (1) is also provided with a heating unit, which is used to heat the locking hole member (41) on the outside of the door frame (4) during the locking test.

7. A testing device for a fire door frame according to claim 1, characterized in that: The door frame (4) is provided with a telescopic block (42), a sliding notch (412) is provided on the rear end surface of the lock hole member (41), and the telescopic block (42) extends into the sliding notch (412) to lock the lock hole member (41) so as to prevent rotation and reduce the size of the space of the locking hole (411) for the locking hole to cooperate with the locking hole.

8. A testing device for a fire door frame according to claim 7, characterized in that: The head of the telescopic block (42) extends into the locking hole (411), and the front end is flush with the front end surface of the locking hole member (41), so as to reduce the spatial size of the locking hole (411) in the initial state. When the telescopic block (42) is retracted, the rotation lock of the locking hole (411) is released, and the spatial size of the locking hole (411) is increased.

9. A testing method using a testing device for a fire door frame as claimed in claim 5, characterized in that: S1: Positioning the door frame (4) on the test platform (1) by a manipulator; S2: The moving frame (3) moves the testing device (2) to above the locking hole member (41) of the door frame (4); S3: the second hydraulic component (221) starts to retract and performs a locking test on the door frame (4); S4: After the locking test is completed, the second hydraulic component (221) is reset, and the heating unit is started to heat the upper part of the locking hole component to simulate a fire; S5: After the temperature rises to the set value, the second hydraulic component (221) is started again to detect whether the locking tongue device (22) can be completely moved out of the door frame (4).

10. A method for testing a fire door frame test device according to claim 9, characterized in that: In S3, when the reading on the tension and compression sensor is greater than 8N, the displacement sensor starts to work. When the reading of the tension and compression sensor reaches a set value, the qualified state of the door frame (4) is determined by comparing the reading of the displacement sensor with the value stored in the central control unit.

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