Fastener friction force detection equipment

Abstract

The utility model relates to the technical field of building equipment detection, and discloses a fastener friction force detection device, which comprises a bottom plate and a cylinder, the top of the bottom plate is fixedly connected with a plurality of circular bases, the tops of the plurality of circular bases are fixedly connected with threaded columns, the tops of the plurality of threaded columns are in threaded connection with detection columns, and the detection columns are in threaded connection with the cylinder. A plurality of detection columns are installed on the bottom plate, cross fasteners are installed on the outer walls of the detection columns, limiting pieces are installed on the outer walls of the detection columns, induction pieces are arranged at the bottoms of the limiting pieces, the output end of the air cylinder is fixedly connected with a connecting plate, a plurality of pressing pieces are installed at the bottom of the connecting plate, and a temperature control mechanism is arranged at the top of the bottom plate. According to the utility model, the cross-shaped fastener is installed on the detection column, the air cylinder is started, the air cylinder enables the pressing piece to generate pressing force on the cross-shaped fastener, and when the cross-shaped fastener displaces, the limiting piece is in contact with the induction piece to trigger induction, so that the friction force of the fastener is detected.

Description

Technical Field

[0001] This utility model relates to the field of building equipment testing technology, and in particular to a fastener friction testing device. Background Technology

[0002] Building fasteners are key connecting components in construction projects. They are generally made of metal and come in three types: right-angle fasteners, swivel fasteners, and butt fasteners. Right-angle fasteners are used for connecting vertically intersecting steel pipes, swivel fasteners allow steel pipes to be rotated at any angle, and butt fasteners are used for extending steel pipes by joining them. Their quality affects the stability and safety of the building structure.

[0003] Right-angle couplers, also known as cross couplers, are a type of building coupler. Cross couplers use bolts to secure steel pipes together, preventing them from sliding or rotating during use. In construction, when erecting scaffolding, cross couplers ensure a stable right-angle structure between the steel pipes, providing a safe and reliable working platform for construction workers.

[0004] After the cross couplers are manufactured, friction testing is necessary to ensure their quality and the stability of the connection. This allows for the early detection of potential loosening or slippage due to insufficient friction. Testing helps identify qualified products, ensuring the safety of scaffolding and formwork supports in construction and reducing the incidence of accidents such as collapses caused by coupler problems. However, currently there is no dedicated device for testing friction. Therefore, this paper proposes a coupler friction testing device to address this issue. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a fastener friction testing device, aiming to improve the problem of the lack of a device for testing the friction of cross fasteners in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a fastener friction force testing device, comprising a base plate and a cylinder, wherein a plurality of circular bases are fixedly connected to the top of the base plate, a threaded post is fixedly connected to the top of each of the plurality of circular bases, a detection post is threadedly connected to the top of each of the plurality of threaded posts, a cross fastener is installed on the outer wall of each of the plurality of detection posts, a limiting member is installed on the outer wall of each of the plurality of detection posts, and a sensing member is provided at the bottom of each of the plurality of limiting members; a connecting plate is fixedly connected to the output end of the cylinder, a plurality of pressing members are installed at the bottom of the connecting plate, and a temperature control mechanism is provided on the top of the base plate, the temperature control mechanism being used to control the temperature of the cross fastener during testing.

[0007] The above technical solution involves threading the detection column onto a threaded post, allowing the size of the detection column to be changed to accommodate different types of cross-shaped fasteners. Activating the cylinder causes the connecting plate to descend, which in turn causes the pressing component to exert downward pressure on the cross-shaped fastener. When the cross-shaped fastener shifts, the limiting component contacts the sensing component, transmitting a signal and thus completing the detection.

[0008] As a further description of the above technical solution:

[0009] The temperature control mechanism includes an insulation board, the bottom of which is fixedly connected to the top of a base plate. A temperature controller is fixedly connected to the front of the insulation board. A connector is fixedly connected to the left side of the base plate, and a fan is fixedly connected to the right side of the connector. Side plates are installed on the left and right sides of the insulation board. Two screw housings are installed on the front and rear sides of each side plate. Sliding elements are slidably connected inside each of the screw housings. A spring is fixedly connected to one end of each of the sliding elements, and a bolt is fixedly connected inside each of the sliding elements.

[0010] Through the above technical solution, the insulation board and side panels can form a sealed space, allowing the temperature controller to control the internal temperature. This enables the cross fastener to be tested at different temperatures. After testing, pulling the bolts allows the left and right side panels to be quickly disassembled, and the fan can be turned on for ventilation, allowing the testing location to quickly return to normal temperature.

[0011] As a further description of the above technical solution:

[0012] The right side of the fan is threaded with multiple screws, one end of which is threaded onto the right side of the connector.

[0013] The above technical solution involves screws passing through the fan thread and connecting to the connector, making the fan more stably fixed on the connector.

[0014] As a further description of the above technical solution:

[0015] A detector is fixedly connected to the top of the base plate, and the rear side of the detector is located on the front side of the insulation board.

[0016] Through the above technical solution, the presence of the detector can improve the efficiency of the device.

[0017] As a further description of the above technical solution:

[0018] A display screen is fixedly connected to the front of the detector, and a knob is installed on the front of the detector.

[0019] The above technical solution allows the display to show the cylinder pressure reading, and the knob to control the cylinder's start-up.

[0020] As a further description of the above technical solution:

[0021] An alarm light is fixedly connected to the front side of the detector, and the alarm light is electrically connected to the sensing element.

[0022] With the above technical solution, the alarm light can sound an alarm when the limiter and the sensor come into contact.

[0023] As a further description of the above technical solution:

[0024] Each of the two side plates has a handle fixedly connected to the opposite side, and both handles are rounded.

[0025] The above technical solution allows for easier removal of the side panel after the bolt is pulled, while the smooth design makes it comfortable for workers to use.

[0026] As a further description of the above technical solution:

[0027] The interior of the pressing component is hollowed out, and the size of the hollowed-out part matches the size of the detection column.

[0028] Through the above technical solution, the size of the internal hollowing treatment of the pressing part is matched with the size of the detection column, so that the detection column can slide inside the pressing part, thereby allowing the pressing part to apply pressure to the cross fastener.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, the cross-shaped fastener to be tested is installed on the testing column, and the testing column is threaded onto the threaded column, so that the size of the testing column can be changed to adapt to different models of cross-shaped fasteners. At this time, the cylinder is activated, and the cylinder causes the connecting plate to descend, thereby causing the pressing component to exert downward pressure on the cross-shaped fastener. When the cross-shaped fastener is displaced, the limiting component contacts the sensing component, the alarm light sounds an alarm, and the display screen shows the cylinder pressure reading, thereby completing the detection of the fastener friction force.

[0031] 2. In this utility model, a sealed space is formed by the insulation board and the side plate, which allows the temperature controller to control the internal temperature. This allows the cross fastener to be tested at different temperatures. After the test is completed, the bolts are pulled to allow the left and right side plates to be quickly disassembled. The fan is then turned on to ventilate the area and allow the test position to quickly return to normal temperature. Attached Figure Description

[0032] Figure 1 This is a perspective view of a fastener friction force testing device proposed in this utility model;

[0033] Figure 2This is a front view of a fastener friction force testing device proposed in this utility model;

[0034] Figure 3 This is an exploded view of a fastener friction force testing device proposed in this utility model;

[0035] Figure 4 This is a front view of the detection mechanism of a fastener friction force detection device proposed in this utility model;

[0036] Figure 5 This utility model proposes a fastener friction force testing device. Figure 3 Enlarged view of point A in the middle.

[0037] Legend:

[0038] 1. Base plate; 2. Circular base; 3. Threaded post; 4. Detection post; 5. Cross fastener; 6. Limiting component; 7. Sensing component; 8. Cylinder; 9. Connecting plate; 10. Pressing component; 11. Temperature control mechanism; 1101. Insulation plate; 1102. Temperature controller; 1103. Connecting component; 1104. Fan; 1105. Side plate; 1106. Threaded housing; 1107. Sliding component; 1108. Spring; 1109. Bolt; 12. Screw; 13. Detector; 14. Display screen; 15. Alarm light; 16. Knob; 17. Handle. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Reference Figure 1 , Figure 4 and Figure 5This utility model provides an embodiment of a fastener friction force testing device, including a base plate 1 and a cylinder 8. Multiple circular bases 2 are fixedly connected to the top of the base plate 1. Threaded posts 3 are fixedly connected to the top of each of the circular bases 2. Detection posts 4 are threadedly connected to the top of each of the threaded posts 3. Cross fasteners 5 are installed on the outer walls of each of the detection posts 4. Limiting elements 6 are installed on the outer walls of each of the detection posts 4. Sensing elements 7 are provided at the bottom of each of the limiting elements 6. A connecting plate 9 is fixedly connected to the output end of the cylinder 8. Multiple pressing elements 10 are installed at the bottom of the connecting plate 9. The interior of the pressing elements 10 is hollowed out, and the size of the hollowed-out interior of the pressing elements 10 matches the size of the detection posts 4. Matching the size of the hollowed-out interior of the pressing elements 10 with the size of the detection posts 4 allows the detection posts 4 to slide inside the pressing elements 10, thereby allowing the pressing elements 10 to apply pressure to the cross fasteners 5. A temperature control mechanism 11 is provided on the top of the base plate 1. The temperature control mechanism 11 is used to control the temperature of the cross fasteners 5 during testing.

[0041] Specifically, the cross-shaped fastener 5 to be inspected is installed onto the inspection post 4. The inspection post 4 is threaded onto the threaded post 3. This threaded connection method has significant advantages, as it allows the size of the inspection post 4 to be changed according to actual needs. Furthermore, the inspection post 4 and the lower pressure component 10 are a matching set, thus accommodating different models of cross-shaped fasteners 5. Through this ingenious design, the device can inspect different models of cross-shaped fasteners 5, meeting diverse inspection needs; it can also perform batch inspections of cross-shaped fasteners 5 of the same model, improving inspection efficiency. At this point, the cylinder 8 is activated. The cylinder 8 is model CDQ2B50-20TZ. After the cylinder 8 starts working, the connecting plate 9 descends. As the connecting plate 9 descends, the pressing component 10 exerts downward pressure on the cross fastener 5. When the cross fastener 5 is displaced under pressure, the limiting component 6 contacts the sensing component 7. The sensing component 7 quickly transmits the signal to the detector 13. At this time, the alarm light 15 on the detector 13 will sound an alarm, and the display screen 14 will display the pressure reading of the cylinder 8. Through this series of operations, the friction force of the fastener is detected, providing an accurate and reliable basis for the quality control of the cross fastener 5.

[0042] Reference Figure 1 , Figure 3 and Figure 5The temperature control mechanism 11 includes an insulation plate 1101. The bottom of the insulation plate 1101 is fixedly connected to the top of the base plate 1. A temperature controller 1102 is fixedly connected to the front side of the insulation plate 1101. A connector 1103 is fixedly connected to the left side of the base plate 1. A fan 1104 is fixedly connected to the right side of the connector 1103. Multiple screws 12 are threadedly connected to the right side of the fan 1104. One end of each screw 12 is threadedly connected to the right side of the connector 1103. The screws 12 pass through the fan 1104 and are threaded onto the connector 1103, making the fixation of the fan 1104 on the connector 1103 more stable. Side plates 1105 are installed on the left and right sides of the heating plate 1101. A handle 17 is fixedly connected to the opposite side of the two side plates 1105. Both handles 17 are rounded, which makes it easier to remove the side plate 1105 after the bolt 1109 is pulled. At the same time, the rounded design makes it comfortable for the staff to use. Two screw shells 1106 are installed on the front and rear sides of the side plate 1105. Sliding parts 1107 are slidably connected inside the screw shells 1106. A spring 1108 is fixedly connected to one end of the sliding parts 1107. Bolts 1109 are fixedly connected inside the sliding parts 1107.

[0043] Specifically, the insulation board 1101 and the side plate 1105 work together to form a sealed space. This sealed space provides the conditions for the temperature controller 1102 to function. The temperature controller 1102, model CJ1W-TC, allows for precise temperature control of the sealed space, enabling the cross-shaped fastener 5 to be tested under different temperature conditions, meeting diverse testing needs. After testing, pulling the bolt 1109 generates tension on the spring 1108, causing the spring to... Spring 1108 undergoes elastic deformation. As bolt 1109 moves, bolt 1109 will leave the screw hole on side plate 1105. In this way, the left and right side plates 1105 can be quickly disassembled. After the side plates 1105 are disassembled, fan 1104 is started. After fan 1104 starts running, it can ventilate the inside of insulation plate 1101. This ventilation can quickly restore the normal temperature of the inspection position, preparing for the next inspection. At the same time, the ventilated space can also facilitate the replacement of the next batch of fasteners for inspection, improving the efficiency and continuity of the inspection work.

[0044] Reference Figure 1 and Figure 2 A detector 13 is fixedly connected to the top of the base plate 1. The rear side of the detector 13 is set on the front side of the insulation board 1101. A display screen 14 is fixedly connected to the front side of the detector 13. A knob 16 is installed on the front side of the detector 13. An alarm light 15 is fixedly connected to the front side of the detector 13. The alarm light 15 is electrically connected to the sensor 7.

[0045] Specifically, the presence of detector 13 can improve the efficiency of the device, the presence of display screen 14 can display the pressure reading of cylinder 8, the presence of knob 16 can control the start of cylinder 8, and alarm light 15 can sound an alarm when limit member 6 and sensing member 7 come into contact.

[0046] Working principle: The cross-shaped fastener 5 to be tested is installed on the detection column 4. The detection column 4 is threaded onto the threaded column 3. The threaded connection allows the size of the detection column 4 to be changed. The detection column 4 and the lower pressure component 10 are matched as a set to adapt to different models of cross-shaped fasteners 5. This design allows the device to test different models of cross-shaped fasteners 5 as well as to perform batch testing of the same model of cross-shaped fasteners 5. At this time, the cylinder 8 is activated, which causes the connecting plate 9 to descend, thereby causing the lower pressure component 10 to exert downward pressure on the cross-shaped fastener 5. When the cross-shaped fastener 5 is displaced, the limiting component 6 contacts the sensing component 7. The sensing component 7 transmits a signal to the detector 13, causing the alarm light 15 on the detector 13 to sound an alarm. The display screen 14 will display the pressure reading of the cylinder 8, thus completing the detection of the fastener friction.

[0047] Furthermore, the insulation board 1101 and the side plate 1105 form a sealed space, allowing the temperature controller 1102 to control the temperature of the sealed space. This enables the cross fastener 5 to be tested at different temperatures. After testing, pulling the bolt 1109 causes the spring 1108 to deform elastically, and the bolt 1109 leaves the screw hole on the side plate 1105, allowing the left and right side plates 1105 to be quickly disassembled. After disassembly, the fan 1104 is turned on to ventilate the interior of the insulation board 1101, allowing the testing position to quickly return to normal temperature. This also facilitates the replacement of the next batch of fasteners for testing.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fastener friction force testing device, comprising a base plate (1) and a cylinder (8), characterized in that: The top of the base plate (1) is fixedly connected to a plurality of circular bases (2), the top of each of the plurality of circular bases (2) is fixedly connected to a threaded post (3), the top of each of the plurality of threaded posts (3) is threadedly connected to a detection post (4), the outer wall of each of the plurality of detection posts (4) is fitted with a cross fastener (5), the outer wall of each of the plurality of detection posts (4) is fitted with a limiter (6), the bottom of each of the plurality of limiters (6) is provided with a sensor (7), the output end of the cylinder (8) is fixedly connected to a connecting plate (9), the bottom of the connecting plate (9) is fitted with a plurality of pressing parts (10), the top of the base plate (1) is provided with a temperature control mechanism (11), the temperature control mechanism (11) is used to control the temperature of the cross fastener (5) during detection.

2. The fastener friction force testing device according to claim 1, characterized in that: The temperature control mechanism (11) includes an insulation plate (1101), the bottom of which is fixedly connected to the top of the base plate (1). A temperature controller (1102) is fixedly connected to the front side of the insulation plate (1101). A connector (1103) is fixedly connected to the left side of the base plate (1). A fan (1104) is fixedly connected to the right side of the connector (1103). Side plates (1105) are installed on the left and right sides of the insulation plate (1101). Two screw shells (1106) are installed on the front and rear sides of each side plate (1105). Sliding parts (1107) are slidably connected inside each of the screw shells (1106). A spring (1108) is fixedly connected to one end of each of the sliding parts (1107). Bolts (1109) are fixedly connected inside each of the sliding parts (1107).

3. The fastener friction force testing device according to claim 2, characterized in that: The fan (1104) has a plurality of screws (12) threadedly connected to the right side, and one end of the plurality of screws (12) is threadedly connected to the right side of the connector (1103).

4. The fastener friction force testing device according to claim 1, characterized in that: A detector (13) is fixedly connected to the top of the base plate (1), and the rear side of the detector (13) is arranged on the front side of the insulation plate (1101).

5. The fastener friction force testing device according to claim 4, characterized in that: A display screen (14) is fixedly connected to the front side of the detector (13), and a knob (16) is installed on the front side of the detector (13).

6. The fastener friction force testing device according to claim 4, characterized in that: An alarm light (15) is fixedly connected to the front side of the detector (13), and the alarm light (15) is electrically connected to the sensor (7).

7. The fastener friction force testing device according to claim 2, characterized in that: Each of the two side plates (1105) has a handle (17) fixedly connected to the opposite side, and both handles (17) are rounded.

8. The fastener friction force testing device according to claim 1, characterized in that: The interior of the pressure member (10) is hollowed out, and the size of the hollowed-out interior of the pressure member (10) matches the size of the detection column (4).

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