Moment testing machine for door closer

Abstract

The utility model belongs to the field of door closer torque testing, and particularly discloses a door closer torque testing machine, which comprises a door frame, a testing door and a control cabinet, and is characterized in that the upper part of the testing door and the upper part of the door frame are respectively provided with a mounting plate, the mounting plate is provided with a plurality of groups of mounting hole sites, and the mounting hole sites are arranged on the door frame. The plurality of groups of mounting hole positions are adapted to the fixed installation of different models of test door closers, and the top end of the test door is provided with a hidden door closer mounting groove. The length of the hidden door closer mounting groove is adaptive to the mounting of any type of hidden test door closer, and the hidden door closer mounting groove is provided with a movable limiting block capable of moving in the hidden door closer mounting groove; the door closer performance testing device is strong in compatibility, and can be used for testing the product performance of door closers in various installation modes such as forward installation, reverse installation, surface installation, hidden installation and the like.

Description

Technical Field

[0001] The utility model relates to the field of door closer torque testing, in particular to a door closer torque testing machine. Background Art

[0002] The door closer is a spring-like hydraulic device on the door head. When the door is opened, it can be compressed and then released to automatically close the door. It works like a spring door and can ensure that the door is accurately and timely closed to the initial position after it is opened. Before leaving the factory, the door closer needs to undergo a torque test to ensure that the torque of the door closer is within the standard range. The traditional test method is to connect a tension gauge to the test door, pull it manually and record the data. This method is not only time-consuming and labor-intensive, but also the data obtained is not accurate.

[0003] At present, some enterprises have made improvements to this situation. For example, the utility model with publication number CN204944809 discloses a door closer and floor spring test device. In this solution, a servo motor is used to pull the test door, and an angle sensor and a force sensor are used to collect conduction-related data. This solution basically solves the problem of inaccuracy of traditional methods, but this structure is limited to a single product model and has limited test performance. If different products are to be tested, a new test machine needs to be manufactured.

[0004] Therefore, in order to solve the above problems, a door closer torque testing machine is proposed. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model proposes a door closer torque tester. The utility model is designed to provide a door closer torque tester with a simple structure, good compatibility and capable of meeting the needs of various models.

[0006] To achieve the above-mentioned purpose, the utility model proposes a door closer torque testing machine, which includes a door frame, a test door and a control cabinet, and is characterized in that a mounting plate is provided on the upper part of the test door and above the door frame, the mounting plate is provided with a plurality of groups of mounting holes, and the plurality of groups of mounting holes are adapted to the fixed installation of different types of test door closers, a hidden door closer mounting groove is provided on the top of the test door, the length of the hidden door closer mounting groove is adapted to the installation of any type of hidden test door closer and is equipped with a movable limit block that can move in the hidden door closer mounting groove.

[0007] Based on the above, different from the traditional door closer torque testing machine, the utility model is provided with a door closer mounting plate on the upper part of the test door and above the door frame, the mounting plate is provided with a plurality of mounting hole positions, and the plurality of mounting hole positions are adapted for the fixed installation of different types of test door closers, and a hidden door closer mounting groove is provided at the top of the test door, and the hidden door closer mounting groove is equipped with a movable limit block, which can be used to test the product performance of door closers with various installation methods such as forward installation, reverse installation, surface installation and hidden installation, thereby improving the compatibility of the door closer torque testing machine.

[0008] Furthermore, a transverse sliding groove is opened on one side of the installation groove of the hidden door closer, and a screw is arranged in the transverse sliding groove. The screw passes through the transverse sliding groove and is connected to the movable limiting block.

[0009] Based on the above, the hidden door closer mounting groove is used to install the hidden door closer, the screw can be adjusted to a suitable position in the horizontal slide groove according to different hidden test door closer models, the movable limit block can be locked in cooperation with the screw, and the hidden test door closer is installed in the hidden door closer mounting groove, which fully meets the actual usage scenario and makes the test more accurate.

[0010] Furthermore, a servo motor is fixedly mounted on the control cabinet, a bobbin is provided at an output end of the servo motor, one side of the test door is hinged to the door frame via a plurality of door shafts, a force sensor is provided on a non-hinged side of the test door, the force sensor is fixedly mounted on a semicircular wheel frame and connected to the test door via a force measuring wire, a steel wire rope is connected to one end of the disc of the semicircular wheel frame, the other end of the steel wire rope is connected to the bobbin, a V-shaped groove is provided on the outer contour of the semicircular wheel frame, and the steel wire rope is routed in the V-shaped groove.

[0011] Based on the above, the servo motor is driven to stretch the wire rope to drive the test door to rotate. The wire rope moves on the V-groove, and the V-groove plays a guiding role. The force sensor measures the torque value in real time and transmits the measured torque value to the control cabinet.

[0012] Furthermore, the plurality of door shafts include a first door shaft, a second door shaft and a third door shaft, one end of the first door shaft and the second door shaft are fixedly connected to the test door, and the other end is provided with a rotating shaft rotatably connected to the door frame, the first door shaft is provided with an angle sensor, and the angle sensor is fixedly installed on the door frame, one end of the second door shaft is fixedly connected to the semicircular wheel frame, and the other end is fixed to the door frame.

[0013] Based on the above, an angle sensor is connected to the first door shaft, and the angle sensor calculates the door opening angle value in real time and transmits the detected angle information to the control cabinet.

[0014] Furthermore, the door frame is a 8080 heavy-duty aluminum profile vertical frame.

[0015] Based on the above, the door frame is a heavy-duty aluminum profile vertical frame with a solid structure and stable installation, which reduces the error caused by the shaking of the door frame.

[0016] Furthermore, the height of the test door is 1700 mm.

[0017] Based on the above, the height of the test door is set to 1700 mm, which is convenient for installation and testing without the need for ladders or other means.

[0018] In order to more clearly illustrate the above features of the present invention and the objectives to be achieved, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 : is a three-dimensional diagram a of the utility model;

[0020] Figure 2 : It is a three-dimensional diagram b of the utility model;

[0021] Figure 3 : It is a structural diagram of the installation slot of the concealed door closer;

[0022] Figure 4 : It is a structural schematic diagram of the first door shaft and the angle sensor;

[0023] Figure 5 : Schematic diagram of the structure of the installation plate and the test door closer.

[0024] Explanation of the accompanying drawings: 1 door frame, 11 first door axis, 12 second door axis, 112 rotating shaft; 2 test door, 21 concealed door closer installation slot, 22 movable limit block, 23 slide screw, 24 horizontal slide; 3 control cabinet; 4 servo motor, 41 servo motor switch, 42 bobbin; 5 semicircular wheel frame, 51 V-groove, 52 wire rope; 6 force sensor; 7 angle sensor; 8 mounting plate, 81 mounting hole; 9 test door closer. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the above features of the utility model and the objectives to be achieved, the utility model is further described below in conjunction with the accompanying drawings.

[0026] like Figures 1 to 5 As shown, a door closer torque testing machine comprises a door frame 1, a test door 2, a semicircular wheel frame 5, a control cabinet 3 and a servo motor 4.

[0027] The door frame 1 is a 8080 heavy-duty aluminum profile vertical frame. One side of the test door 2 is hinged to the door frame 1 through a plurality of door shafts, and the other side is connected to a force sensor 6. The door shafts include a first door shaft 11, a second door shaft 12 and a third door shaft. One end of the first door shaft 11 and the third door shaft is fixedly connected to the test door 2, and the other end is provided with a rotating shaft 112 to be rotatably connected to the door frame 1. The first door shaft 11 is provided with an angle sensor 7, and the angle sensor 7 is fixedly installed on the door frame 1. One end of the second door shaft 12 is fixedly connected to the semicircular wheel frame 5, and the other end is fixed to the door frame 1. The angle sensor 7 tests the door opening angle value in real time and transmits the detected angle information to the control cabinet 3. A door closer mounting plate 8 is arranged above the test door 2 and the door frame 1, and the mounting plate 8 is provided with a plurality of mounting holes 81, and the plurality of mounting holes 81 correspond to the mounting holes of various surface mounted door closer models. A hidden door closer mounting groove 21 is arranged on the upper part of the test door 2, and the hidden door closer mounting groove 21 has a transverse sliding groove 24 on the outward side of the test door 2, and a screw 23 is arranged in the transverse sliding groove 24, and the screw 23 passes through the transverse sliding groove 24 and is connected with a movable stopper 22 arranged in the hidden door closer mounting groove 21. When installing the hidden door closer, the movable stopper 22 can adjust the position of the hidden door closer mounting groove 21 to adapt to the installation of different models of door closers. The mounting plate 8 and the hidden door closer mounting groove 21 can make the utility model applicable to surface mounted and hidden mounted door closers, and can test four different installation modes of forward mounting, reverse mounting, hinge side and hinge back side.

[0028] The servo motor 4 is fixedly installed above the control cabinet 3. The power of the servo motor 4 meets the door opening force value requirement of the maximum force number door closer (EN7=215Nm). A bobbin 42 is provided at the output end of the servo motor 4. The bobbin 42 is connected to one end of a steel wire rope 52. The other end of the steel wire rope 52 is fixedly connected to the semicircular wheel frame 5. The semicircular wheel frame 5 is arranged in the middle of the test door 2 and is hinged to the door frame 1 through the second door shaft 12. The force sensor 6 is fixedly installed at one end of the semicircular wheel frame 5 and is connected to the test door 2 through a force measuring wire. The outer contour of the semicircular wheel frame 5 is provided with a V-shaped groove 51. The steel wire rope 52 is fitted in the V-shaped groove 51 for routing. The rotation speed of the servo motor 4 is set through the control cabinet 3, and the servo motor 4 is started to rotate the spool 42, thereby pulling the force sensor on the wire rope 52 to open the test door 2. The wire rope 52 moves on the V-groove 51, and the V-groove 51 plays a guiding role. The force sensor 6 measures the torque value in real time and transmits the measured torque value to the control cabinet 3.

[0029] The workflow of the utility model is as follows: when the test door closer 9 is a surface mounted test door closer 9, the test door closer 9 is mounted on the mounting plate 8, and the mounting plate 8 has mounting holes 81 that are compatible with various door closers, which can meet the installation of various products for testing. When the test door closer 9 is a hidden door closer, the test door closer 9 is mounted in the hidden door closer mounting groove 21, and the position of the hidden door closer is adjusted and fixed by the movable limit block 22. After the product installation is completed, the power supply of the detection control system is turned on, the required door opening angle is entered, and the test is started.

[0030] The control cabinet 3 outputs a signal to control the servo motor 4 to start, the spool 42 reels the wire rope 52, drives the semicircular wheel frame 5 to rotate, and the force sensor 6 on the semicircular wheel frame pulls the test door 2, thereby slowly opening the test door 2. The force sensor 6 measures the torque value in real time and transmits it to the control system. The angle sensor 7 calculates the door opening angle value in real time. The test door 2 opens to the set angle at a speed of one degree per second. When the measured angle is reached, the control cabinet 3 outputs a signal to control the servo motor 4 to reverse and slowly release the wire rope 52, so that the test door 2 is slowly closed at a speed of one degree per second under the action of the test door closer 9. The control system records the complete door opening and closing torques, and the background software analyzes and calculates the recorded torque values ​​in real time, displays them in the form of torque curves, and generates a door opening and closing force performance test report according to the EN1154 door closer test standard.

[0031] In summary, the utility model has strong compatibility and can be used to test the product performance of door closers in various installation modes, such as forward installation, reverse installation, surface installation, concealed installation, etc., and can automatically determine whether the test data meets the requirements according to the European standard EN1154. The product testing method is optimized and the testing efficiency is improved.

[0032] The above descriptions are only some embodiments of the present invention and are not intended to limit the present invention. Various modifications or substitutions of the present invention made by those skilled in the art without departing from the essence and protection scope of the present invention should also be within the protection scope of the present invention.

Claims

1. A door closer torque testing machine, comprising a door frame (1), a test door (2) and a control cabinet (3), characterized in that: A mounting plate (8) is provided on the upper part of the test door (2) and above the door frame (1); the mounting plate (8) is provided with a plurality of groups of mounting holes (82); the plurality of groups of mounting holes (82) are adapted to the fixed installation of different types of test door closers (9); a hidden door closer mounting groove (21) is provided at the top of the test door (2); the length of the hidden door closer mounting groove (21) is adapted to the installation of any type of hidden test door closer (9) and is provided with a movable limit block (22) that can move in the hidden door closer mounting groove (21).

2. The door closer torque testing machine according to claim 1, characterized in that: A transverse sliding groove (24) is provided on one side of the concealed door closer installation groove (21), a screw (23) is provided in the transverse sliding groove (24), and the screw (23) passes through the transverse sliding groove (24) and is connected to the movable limiting block (22).

3. The door closer torque testing machine according to claim 1, characterized in that: A servo motor (4) is fixedly mounted on the control cabinet (3), and a bobbin (42) is provided at the output end of the servo motor (4). One side of the test door (2) is hinged to the door frame (1) via a plurality of door shafts. A force sensor (6) is provided on the non-hinged side of the test door (2). The force sensor (6) is fixedly mounted on the semicircular wheel frame (5) and connected to the test door (2) via a force measuring wire. A steel wire rope (52) is connected to one end of the disc of the semicircular wheel frame (5), and the other end of the steel wire rope (52) is connected to the bobbin (42). A V-shaped groove (51) is provided on the outer contour of the semicircular wheel frame (5), and the steel wire rope (52) is arranged in the V-shaped groove (51).

4. The door closer torque testing machine according to claim 3, characterized in that: The plurality of door shafts include a first door shaft (11), a second door shaft (12) and a third door shaft, wherein one end of the first door shaft (11) and the second door shaft (12) are fixedly connected to the test door (2), and the other end is provided with a rotating shaft (112) which is rotatably connected to the door frame (1), the first door shaft (11) is provided with an angle sensor (7), and the angle sensor (7) is fixedly mounted on the door frame (1), and one end of the second door shaft (12) is fixedly connected to the semicircular wheel frame (5), and the other end is fixed to the door frame (1).

5. The door closer torque testing machine according to claim 1, characterized in that: The door frame (1) is a 8080 heavy-duty aluminum profile vertical frame.

6. The door closer torque testing machine according to claim 1, characterized in that: The height of the test door (2) is 1700 mm.

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