Elevator tension testing device
By designing an elevator tension testing device, which employs components such as a gantry frame, cylinder, crossbeam, tension sensor, and shielding assembly, the problems of observing the condition of the wire rope and protecting it with a transparent plate were solved, thus achieving safe tension testing.
Patent Information
- Application Number
- CN202423057814.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-10
AI Technical Summary
During elevator wire rope tensile testing, existing technologies struggle to simultaneously provide both direct observation of the wire rope's condition and protection against the transparent panel shattering when the wire rope breaks.
An elevator tension testing device was designed, which uses components such as a gantry frame, cylinder, crossbeam, tension sensor, clamp, shielding component and opener/closer. It clamps the steel wire rope and automatically shields the transparent plate when it breaks. The shielding component is activated by inertia and electric telescopic rod to prevent the transparent plate from being broken.
It enables intuitive observation of the state during wire rope tensile testing and automatically protects the transparent plate in case of breakage, preventing it from shattering and ensuring test safety.
Smart Images
Figure CN223623969U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of tensile testing technology, and more specifically, to an elevator tensile testing device. Background Technology
[0002] Elevator wire ropes need to withstand tension during use. They must be tested before use to ensure safety during operation.
[0003] In elevator wire rope tension testing, a transparent plate is usually placed on the observation side to visually observe the wire rope's tension test status and avoid injury to the testing personnel from a broken wire rope. However, if the transparent plate is too close, the strong impact force generated after the wire rope breaks will shatter the transparent plate. If the distance is too far, it will affect the observer's observation of the wire rope's condition.
[0004] In view of this, we propose an elevator tensile testing device. Utility Model Content
[0005] 1. Technical problems to be solved
[0006] The purpose of this application is to provide an elevator tensile testing device that solves the technical problems in the background art mentioned above, realizes the technical effect of making it easy to observe the test status of the wire rope, and at the same time, after the wire rope breaks, the transparent plate is protected by the shielding component to prevent the transparent plate from being broken.
[0007] 2. Technical Solution
[0008] This application provides an elevator tension testing device, including a gantry frame, cylinders fixed on both sides of the gantry frame, a crossbeam fixed between the two sets of cylinders, a tension sensor fixed below the crossbeam, and a clamp fixed below the tension sensor and the gantry frame. It also includes a back plate fixed on one side of the gantry frame and a door frame hinged to the other side of the gantry frame. Symmetrically fixed within the door frame are relatively retractable shielding components. A transparent plate is fixed between the two sets of shielding components. An opener / closer for controlling the retraction and extension of the shielding components is fixed on the crossbeam.
[0009] By adopting the above technical solution, the two ends of the steel wire rope are clamped on two sets of clamps respectively, and the shielding component is in the retracted state. At this time, the transparent plate is not blocked, and the tension test status of the steel wire rope can be observed through the transparent plate. When the door frame and gantry are closed, the cylinder supports the crossbeam and rises, and the steel wire rope is tightened. At the same time, the tension of the steel wire rope is monitored by the tension sensor. When the steel wire rope breaks, the opening and closing device is powered on under the inertial force, and the shielding component extends to block the transparent plate. At this time, the transparent plate blocks the transparent plate to prevent it from being broken, and the back plate provides protection behind.
[0010] As an optional solution to the technical solution of this application, the shielding component includes an outer plate, a baffle, and multiple return springs. The outer plate has a storage groove adapted to the baffle on the side near the transparent plate. Multiple return springs are fixed between the baffle and the storage groove. The outer plate has an external insertion hole, and the baffle has an internal insertion hole corresponding to the external insertion hole.
[0011] By adopting the above technical solution, when the baffle is horizontally inserted into the storage slot and stored in the outer sleeve, the return spring is in an elastic compression state and generates an elastic rebound force. At the same time, the inner insertion hole and the outer insertion hole correspond, and the opening and closing device is inserted into the inner insertion hole and the outer insertion hole. At this time, the blocking component is in the insertion component. When the opening and closing device is disengaged from the insertion hole, the return spring pushes the baffle out of the transparent blocking plate.
[0012] As an optional solution to the technical solution of this application, the opening and closing device includes a housing, an electric contact plate, a support spring, a metal ball, and an electric telescopic rod. The housing is fixed on the crossbeam, the support spring is fixed inside the housing, the metal ball is fixed on the upper end of the support spring, the electric contact plate is fixed on the top of the housing, the electric contact plate and the metal ball are electrically connected to the electric telescopic rod, and two sets of electric telescopic rods are fixed on the door frame. The piston rod of the electric telescopic rod passes through the door frame and corresponds to and is adapted to the external mounting hole.
[0013] By adopting the above technical solution, when testing the wire rope, the piston rod of the electric telescopic rod is inserted into the inner and outer insertion holes. At this time, the baffle is stored in the storage groove. Meanwhile, as the crossbeam slowly rises, the metal ball does not contact the electric contact plate. When the wire rope breaks, the metal ball shakes upward under the action of inertial force, causing the support spring to stretch. When the metal ball contacts the electric contact plate, the electric telescopic rod is energized, causing the piston rod to retract and disengage from the inner insertion hole. Under the elastic rebound of the return spring, the baffle pops out to block the transparent plate.
[0014] As an optional solution to the technical solution in this application, the upper edge of the door frame is fixed with a stop block placed between two sets of blocking components.
[0015] By adopting the above technical solution, the baffle can be limited by the stop block, preventing the return spring from falling out of the storage slot when supporting the baffle.
[0016] As an optional solution to the technical solution of this application, a reset groove is provided on the side of the baffle near the storage groove, and one end of the reset spring is fixed in the reset groove.
[0017] By adopting the above technical solution, the reset spring is housed in the reset groove, so that it can be stored in the compressed state.
[0018] 3. Beneficial effects
[0019] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:
[0020] 1. This application clamps both ends of the steel wire rope onto two sets of clamps, with the shielding component in a retracted state. At this time, the transparent plate is not blocked, and the tension test status of the steel wire rope can be observed through the transparent plate. When the door frame and gantry are closed, the cylinder supports the crossbeam and rises, tightening the steel wire rope. At the same time, the tension of the steel wire rope is monitored by a tension sensor. When the steel wire rope breaks, the opening and closing device is energized under inertial force, causing the shielding component to extend and block the transparent plate. At this time, the transparent plate blocks the transparent plate to prevent it from being broken, and the back plate provides protection behind. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of an elevator tensile testing device disclosed in a preferred embodiment of this application;
[0022] Figure 2 This is a cross-sectional view of the outer casing of an elevator tensile testing device disclosed in a preferred embodiment of this application;
[0023] Figure 3 This is a schematic diagram of the transparent plate structure of an elevator tensile testing device in use, as disclosed in a preferred embodiment of this application.
[0024] Figure 4 An elevator tensile testing device is disclosed in a preferred embodiment of this application. Figure 3 Enlarged structural diagram at point A in the middle;
[0025] Figure 5 This is a schematic diagram of the baffle structure of an elevator tensile testing device disclosed in a preferred embodiment of this application;
[0026] Figure 6 This is a schematic diagram of the outer shell structure of an elevator tensile testing device disclosed in a preferred embodiment of this application;
[0027] The following are the labeling instructions in the diagram: 1. Gantry frame; 2. Cylinder; 3. Crossbeam; 4. Tension sensor; 5. Fixture; 6. Back plate; 7. Door frame; 71. Stop block; 8. Obstruction assembly; 81. Transparent plate; 82. Outer plate; 821. Storage slot; 822. External mounting hole; 83. Baffle; 831. Internal mounting hole; 832. Reset slot; 84. Reset spring; 9. Opener / closer; 91. Housing; 92. Electrical contact plate; 93. Support spring; 94. Metal ball; 95. Electric telescopic rod. Detailed Implementation
[0028] The present application will be further described in detail below with reference to the accompanying drawings.
[0029] An elevator tension testing device includes a gantry frame 1, cylinders 2 fixed on both sides of the gantry frame 1, a crossbeam 3 fixed between the two sets of cylinders 2, a tension sensor 4 fixed below the crossbeam 3, and a clamp 5 fixed below the tension sensor 4 and the gantry frame 1. It also includes a back plate 6 fixed on one side of the gantry frame 1 and a door frame 7 hinged to the other side of the gantry frame 1. Symmetrically fixed in the door frame 7 are relatively retractable shielding components 8. A transparent plate 81 is fixed between the two sets of shielding components 8. An opener / closer 9 for controlling the extension and retraction of the shielding components 8 is fixed on the crossbeam 3.
[0030] Reference Figures 1-6 One edge of the door frame 7 is hinged to the gantry frame 1 via multiple hinges, and the other side is disassembled via multiple buckles. The two ends of the steel wire rope are clamped onto two sets of clamps 5 respectively. The shielding component 8 is in the retracted state, and the transparent plate 81 is not blocked. At this time, the tension test status of the steel wire rope can be observed through the transparent plate 81. When the door frame 7 and the gantry frame 1 are closed, the cylinder 2 supports the crossbeam 3 to rise, and the steel wire rope is tightened. At the same time, the tension of the steel wire rope is monitored by the tension sensor 4. When the steel wire rope breaks, the opening and closing device 9 is powered on under the inertial force, and the shielding component 8 extends to block the transparent plate 81. At this time, the transparent plate 81 is blocked to prevent the transparent plate 81 from being broken. The back plate 6 provides protection for the rear.
[0031] The shielding assembly 8 includes an outer plate 82, a baffle 83, and multiple return springs 84. The outer plate 82 has a storage groove 821 adapted to the baffle 83 on the side near the transparent plate 81. Multiple return springs 84 are fixed between the baffle 83 and the storage groove 821. The outer plate 82 has an outer insertion hole 822, and the baffle 83 has an inner insertion hole 831 corresponding to the outer insertion hole 822.
[0032] Reference Figure 1 and Figures 3-6 When the baffle 83 is horizontally inserted into the receiving slot 821 and stored in the outer sleeve 82, the return spring 84 is in an elastic compression state and generates an elastic rebound force. At the same time, the inner insertion hole 831 and the outer insertion hole 822 correspond, and the opener 9 is inserted into the inner insertion hole 831 and the outer insertion hole 822. At this time, the blocking component 8 is in the insertion component. When the opener 9 is disengaged from the insertion hole, the return spring 84 pushes the baffle 83 out of the transparent plate 81.
[0033] The opening and closing device 9 includes a housing 91, an electric contact plate 92, a support spring 93, a metal ball 94, and an electric telescopic rod 95. The housing 91 is fixed on the crossbeam 3, the support spring 93 is fixed inside the housing 91, the metal ball 94 is fixed on the upper end of the support spring 93, the electric contact plate 92 is fixed on the top of the housing 91, and the electric contact plate 92 and the metal ball 94 are electrically connected to the electric telescopic rod 95. Two sets of electric telescopic rods 95 are fixed on the door frame 7. The piston rod of the electric telescopic rod 95 passes through the door frame 7 and corresponds to and is adapted to the external mounting hole 822.
[0034] Reference Figures 1-3 During the test of the wire rope, the piston rod of the electric telescopic rod 95 is inserted into the inner insertion hole 831 and the outer insertion hole 822. At this time, the baffle 83 is stored in the storage groove 821. Meanwhile, as the crossbeam 3 slowly rises, the metal ball 94 does not contact the electric contact plate 92. When the wire rope breaks, the metal ball 94 shakes upward under the action of inertial force, causing the support spring 93 to stretch. When the metal ball 94 contacts the electric contact plate 92, the electric telescopic rod 95 is energized, causing the piston rod to retract and disengage from the inner insertion hole 831. Under the elastic rebound of the return spring 84, the baffle 83 pops out to block the transparent plate 81.
[0035] A stop 71 is fixed to the upper edge of the door frame 7 and placed between the two sets of blocking components 8.
[0036] Reference Figure 4 The baffle 83 can be limited by the stop 71 to prevent the return spring 84 from falling out of the storage slot 821 when supporting the baffle 83.
[0037] A reset groove 832 is provided on the side of the baffle 83 near the storage groove 821, and one end of the reset spring 84 is fixed in the reset groove 832.
[0038] Reference Figure 5 The return spring 84 is housed in the return groove 832 so that it can be stored in the compressed state.
[0039] Working principle: The two ends of the wire rope are clamped on two sets of clamps 5 respectively. Then, the baffle 83 is pressed into the storage groove 821, causing the return spring 84 to be elastically compressed, generating an elastic rebound force. At the same time, the piston rod of the electric telescopic rod 95 is inserted into the outer insertion hole 822 and the inner insertion hole 831. The baffle 83 is stored in the storage groove 821. The door frame 7 and the gantry frame 1 are fixed by buckles. The two ends of the wire rope are clamped on two sets of clamps 5 respectively. The cylinder 2 supports the crossbeam 3. As the steel wire rope is pulled up, the tension of the steel wire rope is monitored by the tension sensor 4. When the steel wire rope breaks, the metal ball 94 shakes upward under the action of inertial force, which stretches the support spring 93. When the metal ball 94 contacts the electric contact plate 92, the electric telescopic rod 95 is energized, which causes the piston rod to retract and disengage from the inner insertion hole 831. Under the elastic rebound of the return spring 84, the baffle 83 is pressed against the stop block 71 and pops out to block the transparent plate 81.
Claims
1. An elevator tension testing device, comprising a gantry frame (1), cylinders (2) fixed on both sides of the gantry frame (1), a crossbeam (3) fixed between the two sets of cylinders (2), a tension sensor (4) fixed below the crossbeam (3), and a clamp (5) fixed below the tension sensor (4) and the gantry frame (1), characterized in that: Also includes: A back plate (6) is fixed on one side of the gantry (1) and a door frame (7) is hinged on the other side of the gantry (1). Symmetrically fixed inside the door frame (7) are relatively retractable shielding components (8). A transparent plate (81) is fixed between the two sets of shielding components (8). An opener (9) for controlling the extension and retraction of the shielding components (8) is fixed on the crossbeam (3).
2. The elevator tensile testing device according to claim 1, characterized in that: The shielding assembly (8) includes an outer plate (82), a baffle (83), and multiple return springs (84). The outer plate (82) has a storage groove (821) adapted to the baffle (83) on the side near the transparent plate (81). Multiple return springs (84) are fixed between the baffle (83) and the storage groove (821). The outer plate (82) has an outer insertion hole (822), and the baffle (83) has an inner insertion hole (831) corresponding to the outer insertion hole (822).
3. The elevator tensile testing device according to claim 2, characterized in that: The opening and closing device (9) includes a housing (91), an electric contact plate (92), a support spring (93), a metal ball (94), and an electric telescopic rod (95). The housing (91) is fixed on the crossbeam (3), the support spring (93) is fixed inside the housing (91), the metal ball (94) is fixed on the upper end of the support spring (93), the electric contact plate (92) is fixed on the top of the housing (91), and the electric contact plate (92) and the metal ball (94) are electrically connected to the electric telescopic rod (95). Two sets of electric telescopic rods (95) are fixed on the door frame (7). The piston rod of the electric telescopic rod (95) passes through the door frame (7) and corresponds to and is adapted to the external mounting hole (822).
4. The elevator tensile testing device according to claim 1, characterized in that: The upper edge of the door frame (7) is fixed with a stop (71) placed between two sets of blocking components (8).
5. The elevator tensile testing device according to claim 2, characterized in that: The baffle (83) has a reset groove (832) on the side near the storage groove (821), and one end of the reset spring (84) is fixed in the reset groove (832).