Spring Tensile Test Device

Abstract

The present application provides a spring stretching test device, comprising a support main body; a first rocker and a second rocker, the first rocker and the second rocker are swingably mounted on the support main body, a first hanging member is mounted on the first rocker, and a second hanging member is mounted on the second rocker; the first rocker has a first swing limit position and a second swing limit position, and the second rocker has a third swing limit position and a fourth swing limit position. The present application can simulate the action mode of spring stretching and contraction in a circuit breaker, accompanied by circular motion and impact vibration, so that the spring can be tested in the actual action mode and its service life can be truly presented.

Description

Technical Field

[0001] This application relates to the technical field of spring performance testing, and specifically relates to a spring tensile testing device. Background Art

[0002] Currently, springs are widely used in electrical equipment. For example, taking a circuit breaker as an example, when the circuit breaker is in the open and closed states, the spring inside the circuit breaker is at its free length. When the circuit breaker changes from the open state to the closed state, or from the closed state to the open state, the spring will be stretched or compressed, and the elastic force generated by the deformation of the spring is used to prevent the circuit breaker from automatically changing its open or closed state. That is, the circuit breaker must rely on an external force to overcome the elastic force generated by the deformation of the spring, and then change the open or closed state of the circuit breaker.

[0003] An important reason for the scrapping of circuit breakers is the fatigue fracture of the spring. Therefore, the spring fatigue test is particularly important. However, currently, spring fatigue testing machines often actuate the spring by means of simple harmonic vibration, with stretching and contraction as one cycle, and finally record the fatigue life of the spring. For example, the technical solutions adopted in Chinese patent applications with application numbers CN200520070571.9, CN201720707711.1, etc. In fact, the action mode of the spring in the circuit breaker not only has stretching and contraction actions, but also is accompanied by circular arc motion and impact vibration. Therefore, the method of simple harmonic vibration cannot truly simulate the composite motion of the spring in the circuit breaker structure, making the fatigue life of the spring not truly present its service life in the actual action mode. Summary of the Invention

[0004] This application provides a spring tensile testing device, aiming to solve the technical problem that the current spring tensile testing device cannot truly simulate the composite motion of the circuit breaker spring.

[0005] In a first aspect, this application provides a spring testing device, including:

[0006] A support main body;

[0007] A first rocker and a second rocker, the first rocker and the second rocker are swingably installed on the support main body, a first hanging member is installed on the first rocker, and a second hanging member is installed on the second rocker;

[0008] The first rocker has a first swing limit position and a second swing limit position, and the second rocker has a third swing limit position and a fourth swing limit position;

[0009] When the first rocker arm and the second rocker arm are respectively at the first swing limit position and the third swing limit position, the first hanging member and the second hanging member have a first distance; when the first rocker arm and the second rocker arm are respectively at the second swing limit position and the fourth swing limit position, the first hanging member and the second hanging member have a second distance;

[0010] The first spacing is equal to the second spacing, and is larger or smaller than the spacing between the first hanging component and the second hanging component when the first rocker arm and the second rocker arm are in other swinging positions.

[0011] In some embodiments, the swing center of the first rocker and the swing center of the second rocker are on the same symmetry line;

[0012] The first swing limit position and the second swing limit position are symmetrical about the symmetry line, and the third swing limit position and the fourth swing limit position are symmetrical about the symmetry line.

[0013] In some embodiments, the swing center of the first rocker coincides with the swing center of the second rocker.

[0014] In some embodiments, the first swing limit position and the third swing limit position are located on one side of the symmetry line;

[0015] The second swing limit position and the fourth swing limit are located on the other side of the symmetry line.

[0016] In some embodiments, further comprising a crank and a connecting rod;

[0017] One end of the connecting rod is rotatably connected to the crank, and the other end is rotatably connected to the first rocker or the second rocker.

[0018] In some embodiments, the support body has a first arc-shaped groove;

[0019] The first rocker has a first mounting portion, which is mounted in the first arc groove, and one end of the connecting rod away from the crank is rotatably connected to the first mounting portion.

[0020] In some embodiments, when the first rocker arm is respectively at a first swing limit position and a second swing limit position, the first mounting portion is respectively located at two ends of the first arc groove.

[0021] In some embodiments, the second rocker is rotatably mounted on the supporting body, and the second rocker has a second arc groove arranged with its rotation connection as the center.

[0022] In some embodiments, the first arcuate groove is disposed concentrically with the second arcuate groove;

[0023] The first rocker also has a second mounting portion, and the second mounting portion is mounted in the second arc groove.

[0024] In some embodiments, when the second rocker is respectively in the third swing limit position and the fourth swing limit position, the second mounting portion is respectively located at both ends of the second arc-shaped groove.

[0025] In some embodiments, the first rocker is mounted with a slidable first slider, and the first hanging member is arranged on the first slider; and / or

[0026] The second rocker is mounted with a slidable second slider, and the second hanging member is arranged on the second slider.

[0027] In some embodiments, the first rocker is mounted with a first lead screw extending along the sliding direction of the first slider, and the first lead screw is in threaded cooperation with the first slider; and / or

[0028] The second rocker is mounted with a second lead screw extending along the sliding direction of the second slider, and the second lead screw is in threaded cooperation with the second slider.

[0029] In some embodiments, a counter is further included, and the counter has a positive terminal and a negative terminal;

[0030] When the first rocker and the second rocker are respectively in the first swing limit position and the third swing limit position, the positive terminal and the negative terminal of the counter are conducted; and / or

[0031] When the first rocker and the second rocker are respectively in the second swing limit position and the fourth swing limit position, the positive terminal and the negative terminal of the counter are conducted.

[0032] In this application, by providing a swingable first rocker and a second rocker on the support body, and respectively providing a first hanging member and a second hanging member on the first rocker and the second rocker, during the test, both ends of the spring are respectively hung on the first hanging member and the second hanging member. When the first rocker and the second rocker are respectively in the first swing limit position and the third swing limit position, the first hanging member and the second hanging member have a first distance; when the first rocker and the second rocker are respectively in the second swing limit position and the fourth swing limit position, the first hanging member and the second hanging member have a second distance. Since the first distance is equal to the second distance, the spring is in the free length at both extreme swing positions of the first rocker and the second rocker. Also, since the first distance and the second distance are greater than or less than the distance between the first hanging member and the second hanging member when the first rocker and the second rocker are in other swing positions, when the first rocker and the second rocker swing between the two extreme swing positions, the spring is stretched or compressed by the first hanging member and the second hanging member, simulating the action mode of the spring stretching and contracting in the circuit breaker and accompanied by circular motion and impact vibration, so that the spring can be tested in the actual action mode and truly present its service life. Description of the Drawings

[0033] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0034] Figure 1 is a perspective view of a spring testing device provided in an embodiment of the present application;

[0035] Figure 2 is a schematic diagram of a first rocker and a second rocker respectively in a first swing limit position and a third swing limit position provided in an embodiment of the present application;

[0036] Figure 3 is a schematic diagram of a first rocker and a second rocker respectively in a second swing limit position and a fourth swing limit position provided in an embodiment of the present application;

[0037] Figure 4 is a structural schematic diagram of a spring testing device provided in an embodiment of the present application;

[0038] Figure 5 is a structural schematic diagram of a first rocker mounted on a support body provided in an embodiment of the present application;

[0039] Figure 6 is a structural schematic diagram of a second rocker mounted on a support body provided in an embodiment of the present application;

[0040] Figure 7 is a structural schematic diagram of a first rocker provided in an embodiment of the present application;

[0041] Figure 8 is a structural schematic diagram of a second rocker provided in an embodiment of the present application;

[0042] Figure 9 is another structural schematic diagram of a spring testing device provided in an embodiment of the present application.

[0043] Among them, 1 is a spring, 10 is a support body, 11 is a first arc groove, 12 is an electrical connection contact, 20 is a first rocker, 201 is a first mounting part, 202 is a second mounting part, 21 is a first hanging part, 22 is a first slider, 23 is a first lead screw, 30 is a second rocker, 31 is a second hanging part, 32 is a second arc groove, 33 is a second slider, 34 is a second lead screw, 40 is a crank, 50 is a connecting rod, 60 is a counter, 61 is a positive terminal, 62 is a negative terminal;

[0044] L1: the first spacing;

[0045] L2: the second spacing. Specific Embodiments

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0048] In the present application, the term "exemplary" is used to mean "serving as an example, illustration, or description". Any embodiment described as "exemplary" in the present application is not necessarily to be construed as more preferred or advantageous than other embodiments. The following description is given to enable any person skilled in the art to implement and use the present invention. In the following description, details are set forth for the purpose of explanation. It should be understood by those skilled in the art that the present invention can be implemented without these specific details. In other instances, well-known structures and processes are not elaborated in detail to avoid unnecessary details from obscuring the description of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed in the present application.

[0049] The embodiments of the present application provide a spring testing device, which is applicable to the spring performance testing with stretching and shrinking, accompanied by circular motion and impact vibration action modes, and the following will be described in detail.

[0050] First, refer to Figure 1 、 Figure 2 and Figure 3 , Figure 1Shows a perspective view of the spring testing device in an embodiment of the present application, Figure 2 Shows a schematic diagram of the first rocker 20 and the second rocker 30 in the first swing limit position and the third swing limit position respectively in an embodiment of the present application, Figure 3 Shows a schematic diagram of the first rocker 20 and the second rocker 30 in the second swing limit position and the fourth swing limit position respectively in an embodiment of the present application, where the spring testing device includes:

[0051] Support body 10;

[0052] The first rocker 20 and the second rocker 30, the first rocker 20 and the second rocker 30 are swingably mounted on the support body 10, a first hanging member 21 is mounted on the first rocker 20, and a second hanging member 31 is mounted on the second rocker 30;

[0053] The first rocker 20 has a first swing limit position and a second swing limit position, and the second rocker 30 has a third swing limit position and a fourth swing limit position;

[0054] When the first rocker 20 and the second rocker 30 are in the first swing limit position and the third swing limit position respectively, the first hanging member 21 and the second hanging member 31 have a first spacing; when the first rocker 20 and the second rocker 30 are in the second swing limit position and the fourth swing limit position respectively, the first hanging member 21 and the second hanging member 31 have a second spacing;

[0055] Wherein, the first spacing is equal to the second spacing, and is greater than or less than the spacing between the first hanging member 21 and the second hanging member 31 when the first rocker 20 and the second rocker 30 are in other swing positions.

[0056] Specifically, the support body 10 is used to provide an installation basis for the first rocker 20 and the second rocker 30. Generally, the support body 10 has a flat installation surface so that the first rocker 20 and the second rocker 30 can be installed on the same reference plane. In some embodiments of the present application, the support body 10 may have multiple flat installation surfaces to facilitate the installation of multiple groups of the first rocker 20 and the second rocker 30 and simultaneously perform the performance tests of multiple springs 1. For example, the shape of the support body 10 is U-shaped to simultaneously install two groups of the first rocker 20 and the second rocker 30 on both sides of the support body 10 respectively. It can be understood that the shape of the support body 10 may also be other shapes, such as a cuboid, a cube, etc.

[0057] The first rocker 20 and the second rocker 30 are swingably mounted on the support body 10 to facilitate simulating the arc motion accompanied by both ends of the spring 1 during the stretching or compression process of the spring 1. Among them, a first hanging member 21 and a second hanging member 31 are respectively mounted on the first rocker 20 and the second rocker 30, and the first hanging member 21 and the second hanging member 31 are used to respectively hang both ends of the spring 1. Exemplarily, the first hanging member 21 and the second hanging member 31 can be hooks or cylinders that can hang both ends of the spring 1, etc.

[0058] In some embodiments of the present application, the first rocker 20 and the second rocker 30 can be rotatably mounted on the support body 10, and a part of the arc trajectory during the rotation process corresponds to the swing trajectory of the first rocker 20 and the second rocker 30. In some other embodiments of the present application, members such as arc grooves and arc tracks for restricting the swing trajectory can also be provided on the support body 10, and the first rocker 20 and the second rocker 30 are partially embedded in the arc grooves and arc tracks so that the first rocker 20 and the second rocker 30 move along the arc grooves and arc tracks and generate a swing trajectory. In some other embodiments of the present application, the arc grooves and arc tracks can also be provided on the first rocker 20 and the second rocker 30, and a convex portion (such as a cylinder) for embedding the arc grooves and arc tracks is provided on the support body 10 so that the first rocker 20 and the second rocker 30 generate a swing motion trajectory.

[0059] It can be understood that the swing process of the first rocker 20 and the second rocker 30 can be two of the above three implementation manners respectively, or the same one of the above three implementation manners.

[0060] Continue to refer to Figure 2 and Figure 3 , the first rocker 20 has a first swing limit position and a second swing limit position, the second rocker 30 has a third swing limit position and a fourth swing limit position, the first rocker 20 swings back and forth between the first swing limit position and the second swing limit position, and the second rocker 30 swings back and forth between the third limit swing position and the fourth limit swing position.

[0061] In some embodiments of the present application, the swing motion of the first rocker 20 and the second rocker 30 can be realized by a crank-rocker mechanism. In some other embodiments of the present application, for example, in the embodiment where the first rocker 20 and the second rocker 30 are partially embedded in the arc groove and the arc slide rail, the swing motion of the first rocker 20 and the second rocker 30 can also be realized by a telescopic mechanism (such as a pneumatic telescopic rod, a hydraulic telescopic rod or an electric telescopic rod, etc.), and the telescopic mechanism makes the first rocker 20 and the second rocker 30 perform a swing motion in the arc groove or the arc slide rail by pushing a flexible member back and forth.

[0062] In the embodiment of the present application, by arranging a swingable first rocker 20 and a second rocker 30 on the support body 10, and arranging a first hanging member 21 and a second hanging member 31 on the first rocker 20 and the second rocker 30 respectively, during the test, both ends of the spring 1 are respectively hung on the first hanging member 21 and the second hanging member 31. When the first rocker 20 and the second rocker 30 are respectively in the first swing limit position and the third swing limit position, the first hanging member 21 and the second hanging member 31 have a first distance; when the first rocker 20 and the second rocker 30 are respectively in the second swing limit position and the fourth swing limit position, the first hanging member 21 and the second hanging member 31 have a second distance. Since the first distance is equal to the second distance, the spring 1 can be in the free length at both limit swing positions of the first rocker 20 and the second rocker 30. Also, since the first distance and the second distance are greater than or less than the distance between the first hanging member 21 and the second hanging member 31 when the first rocker 20 and the second rocker 30 are in other swing positions, when the first rocker 20 and the second rocker 30 swing between the two limit swing positions, the spring 1 is stretched or compressed by the first hanging member 21 and the second hanging member 31, and at the same time, it simulates the stretching and contraction of the spring 1 in the circuit breaker and the accompanying circular arc movement and impact vibration, so that the fatigue life of the spring 1 can truly present its service life in the actual action mode of the spring 1 in the circuit breaker after being tested.

[0063] It can be understood that the spring testing device in the embodiment of the present application can not only be applicable to the spring 1 in the circuit breaker, but also be applicable to the spring 1 with an action mode of stretching and contraction accompanied by circular arc movement and impact vibration.

[0064] As an exemplary embodiment where the first distance is equal to the second distance, continue to refer to Figure 2 and Figure 3 , wherein, the swing centers of the first rocker 20 and the second rocker 30 are on the same symmetry line, the first swing limit position and the second swing limit position are symmetric about the symmetry line, and the third swing limit position and the fourth swing limit position are symmetric about the symmetry line. Further, the swing centers of the first rocker 20 and the second rocker 30 coincide, that is to say, the symmetry line is any straight line passing through the swing centers of the first rocker 20 and the second rocker 30.

[0065] In the above embodiment, the swing center of the rocker refers to the center of the circular arc movement trajectory of a certain point on the rocker. For example, for the embodiment where a part of the first rocker 20 is embedded in the arc groove or arc slide rail, the swing center of the first rocker 20 is specifically the center of the circular arc movement trajectory of the part embedded in the arc groove or arc slide rail; for another example, for the embodiment where the second rocker 30 is rotatably installed on the support body 10, the swing center of the second rocker 30 is specifically the center of the rotation trajectory of any point on it, that is, the rotation connection of the second rocker 30.

[0066] Since the swing centers of the first rocker 20 and the second rocker 30 are on the same symmetry line, and at the same time, the first swing limit position and the second swing limit position are symmetric about the symmetry line, and the third swing limit position and the fourth swing limit position are symmetric about the symmetry line, when the first rocker 20 is at the first swing limit position and the second swing limit position respectively, the positions of the first hook are also symmetric about the symmetry line; similarly, when the second rocker 30 is at the third swing limit position and the fourth swing limit position respectively, the positions of the second hook are also symmetric about the symmetry line. Therefore, when the first rocker 20 and the second rocker 30 are at the first swing limit position and the third swing limit position respectively, and when the first rocker 20 and the second rocker 30 are at the second swing limit position and the fourth swing limit position respectively, the first distance and the second distance between the first hook and the second hook are equal.

[0067] In some embodiments of the present application, continue to refer to Figure 2 and Figure 3 , the first swing limit position and the third swing limit position are on one side of the symmetry line, and the second swing limit position and the fourth swing limit are on the other side of the symmetry line.

[0068] As a preferred driving implementation manner for the swing of the first rocker 20 and the second rocker 30, refer to Figure 4 , Figure 4 which shows a schematic structural diagram of a spring testing device in an embodiment of the present application. Wherein, the spring testing device further includes a crank 40 and a connecting rod 50. One end of the connecting rod 50 is rotatably connected to the crank 40, and the other end is rotatably connected to the first rocker 20 or the second rocker 30. That is to say, the first rocker 20 or the second rocker 30, the crank 40, and the connecting rod 50 form a hinge four-bar linkage of a crank-rocker mechanism. The crank 40 serves as the driving member for circular motion, while the first rocker 20 or the second rocker 30 serves as the driven member for reciprocating swing.

[0069] In the above embodiment, when one of the first rocker 20 and the second rocker 30 generates a swinging motion, due to the pulling of the spring 1, the other is also driven to generate a swinging motion, so that a set of crank 40-rocker hinge four-bar 50 mechanism can be saved. It can be understood that the first rocker 20 and the second rocker 30 can also be driven by two sets of crank 40 and connecting rod 50 respectively to generate swinging motions.

[0070] Furthermore, in order to prevent the first rocker 20 from swinging past the first swing limit position and the second limit position during the swinging process, continue to refer to Figure 4 and Figure 5 , Figure 5FIG. 0 shows a schematic structural diagram of the first rocker 20 installed on the support body 10 in an embodiment of the present application. The support body 10 has a first arc-shaped groove 11, and the first rocker 20 has a first mounting portion 201. The first mounting portion 201 is installed in the first arc-shaped groove 11. One end of the connecting rod 50 away from the crank 40 is rotatably connected to the first mounting portion 201 of the first rocker 20. When the first rocker 20 is respectively in the first swing limit position and the second swing limit position, the first mounting portion 201 is respectively located at both ends of the first arc-shaped groove 11.

[0071] In the above embodiment, the first mounting portion 201 is located in the middle of the first connecting rod 50. When the crank 40 drives the first rocker 20 to swing through the connecting rod 50, since the first mounting portion 201 of the first rocker 20 is installed in the first arc-shaped groove 11, the movement of the first connecting rod 50 can only move along the first arc-shaped groove 11. Therefore, the phenomenon that the first rocker 20 swings past the first swing limit position and the second limit position during the swinging process can be avoided.

[0072] Similarly, in order to avoid the second rocker 30 swinging past the third swing limit position and the fourth limit position during the swinging process, continue to refer to Figure 4 and Figure 6 , Figure 6 FIG. 12 shows a schematic structural diagram of the second rocker 30 installed on the support body 10 in an embodiment of the present application. Among them, the second rocker 30 is rotatably installed on the support body 10, and the second rocker 30 has a second arc-shaped groove 32 provided with its rotation connection point as the center.

[0073] In the above embodiment, when the first rocker 20 swings and drives the second rocker 30 to swing through the spring 1, since the second rocker 30 has a second arc-shaped groove 32 provided with its rotation connection point as the center, its movement will be restricted by the second arc-shaped groove 32. For example, a cylinder embedded in the second arc-shaped groove 32 is provided on the support body 10, thereby avoiding the phenomenon that the second rocker 30 swings past the third swing limit position and the fourth limit position during the swinging process.

[0074] Furthermore, the inventor found during the implementation process that when pulling the second rocker 30 to swing through the elastic force of the spring 1, the elastic force of the spring 1 may be too small to pull the second rocker 30 to swing. The embodiment of the present application further improves this. Continue to refer to Figure 4 , Figure 5 and Figure 6 , in which the first arc-shaped groove 11 and the second arc-shaped groove 32 are concentrically arranged, and the first rocker 20 further has a second mounting portion 202. The second mounting portion 202 is installed in the second arc-shaped groove 32.

[0075] In the above embodiment, since the second mounting portion 202 of the first rocker 20 is mounted in the second arc-shaped groove 32, when the first rocker 20 swings, the second mounting portion 202 moves in the second arc-shaped groove 32 accordingly. The second mounting portion 202 generates a force (such as frictional force) on the inner wall surface of the second arc-shaped groove 32 that is opposite to the movement track of the second mounting portion 202. Under the combined action of this force and the spring force of the deformed spring 1, the second rocker 30 is urged to swing, avoiding the phenomenon that the elastic force alone is insufficient to pull the second rocker 30 to swing. At the same time, when the second rocker 30 is respectively at the third swing limit position and the fourth swing limit position, the second mounting portion 202 is respectively located at both ends of the second arc-shaped groove 32. That is to say, the second mounting portion 202 also plays a role in restricting the swing track of the second rocker 30. Therefore, the phenomenon that the second rocker 30 swings past the third swing limit position and the fourth limit position during the swing process can be avoided.

[0076] To facilitate the testing of the spring 1 with different free lengths, continue to refer to Figure 7 , Figure 7 FIG. shows a schematic structural diagram of the first rocker 20 in an embodiment of the present application. The first rocker 20 is provided with a slidable first slider 22, and the first hanging member 21 is disposed on the first slider 22. Since the first hanging member 21 changes its position as the first slider 22 slides, the distance between the first hanging member 21 and the second hanging member 31 can be adjusted, so that the spring testing device can test the spring 1 with different free lengths.

[0077] It can be understood that a slider can also be provided on the second rocker 30. For example, refer to Figure 8 , Figure 8 FIG. shows a schematic structural diagram of the second rocker 30 in an embodiment of the present application. The second rocker 30 is provided with a slidable second slider 33, and the second hanging member 31 is disposed on the second slider 33, so that the position of the second hanging member 31 can also be adjusted.

[0078] Further, to facilitate fixing the position of the first slider 22 and improving the accuracy of adjusting the position of the first hanging member 21, continue to refer to Figure 7 , in which the first rocker 20 is provided with a first lead screw 23 extending along the sliding direction of the first slider 22. The first lead screw 23 is in threaded cooperation with the first slider 22. When the first lead screw rotates, the first slider 22 moves along the thread of the first lead screw and fixes the position of the first slider 22 when the first lead screw stops rotating, which is beneficial to fixing the position of the first slider 22 and improving the accuracy of adjusting the position of the first hanging member 21.

[0079] Similarly, the lead screw can also be provided on the second rocker 30. For example, refer to Figure 8, the second rocker 30 is installed with a second lead screw 34 extending along the sliding direction of the second slider 33, and the second lead screw 34 is in threaded engagement with the second slider 33.

[0080] To record the number of times the spring 1 is tested, continue to refer to Figure 9 , Figure 9 Fig. shows another structural schematic diagram of the spring testing device in the embodiment of the present application. The spring testing device further includes a counter 60, and the counter 60 has a positive terminal 61 and a negative terminal 62. When the first rocker 20 and the second rocker 30 are respectively in the first swing limit position and the third swing limit position, the positive terminal 61 and the negative terminal 62 of the counter 60 are conducted. Specifically, electrical connection contacts 12 can be provided on the support body 10, the first rocker 20 and the second rocker 30. When the first rocker 20 and the second rocker 30 swing to the first swing limit position and the third swing limit position respectively, the electrical connection contacts 12 between the support body 10 and the first rocker 20 are connected, so that the positive terminal 61 and the negative terminal 62 of the counter 60 are respectively connected to the positive and negative poles of the power supply, thereby providing electrical energy for the counter 60 to record the number of times the spring 1 is tested.

[0081] It can be understood that when the first rocker 20 and the second rocker 30 are respectively in the second swing limit position and the fourth swing limit position, the positive terminal 61 and the negative terminal 62 of the counter 60 can also be conducted.

[0082] In the above embodiments, the descriptions of the various embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the detailed descriptions of other embodiments above, and details will not be repeated here.

[0083] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation to the present application. Although not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to the present application. Such modifications, improvements and corrections are proposed in the present application, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of the present application.

[0084] At the same time, specific terms are used in the present application to describe the embodiments of the present application. Such as "an embodiment", "one embodiment", and / or "some embodiments" mean a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that the "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more at different positions in this specification is not necessarily the same embodiment. In addition, certain features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0085] Similarly, it should be noted that, in order to simplify the description disclosed in this application and thus help the understanding of one or more embodiments of the invention, in the foregoing description of the embodiments of this application, multiple features are sometimes merged into one embodiment, drawing, or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than those mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0086] In some embodiments, numbers describing components and attribute quantities are used. It should be understood that such numbers used for the description of embodiments are modified by the modifiers "about", "approximate", or "substantially" in some examples. Unless otherwise specified, "about", "approximate", or "substantially" indicate that the said numbers allow a variation of ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, and such approximate values may change according to the characteristics required by individual embodiments. In some embodiments, the numerical parameters should consider the specified significant digits and adopt the method of retaining the general number of digits. Although the numerical ranges and parameters used in some embodiments of this application to confirm the breadth of their scope are approximate values, in specific embodiments, such numerical settings are as precise as possible within the feasible range.

[0087] For each patent, patent application, patent application publication, and other materials cited in this application, such as articles, books, specifications, publications, documents, etc., their entire contents are hereby incorporated into this application by reference, except for the application history documents that are inconsistent with or conflict with the content of this application, and also except for the documents that limit the broadest scope of the claims of this application (currently or subsequently attached to this application). It should be noted that if there are inconsistencies or conflicts between the descriptions, definitions, and / or uses of terms in the attached materials of this application and the content described in this application, the descriptions, definitions, and / or uses of terms in this application shall prevail.

[0088] The above has introduced in detail a water receiving tray assembly and an air conditioner provided by the embodiments of this application. Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

[0089] The above has introduced in detail a spring testing device provided by an embodiment of the present application. Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A spring testing device, characterized in that, include: Support the main body; A first rocker and a second rocker, wherein the first rocker and the second rocker are swingably mounted on the supporting body, a first hanging member is mounted on the first rocker, and a second hanging member is mounted on the second rocker; The first rocker has a first swing limit position and a second swing limit position, and the second rocker has a third swing limit position and a fourth swing limit position; When the first rocker arm and the second rocker arm are respectively at the first swing limit position and the third swing limit position, the first hanging member and the second hanging member have a first distance; when the first rocker arm and the second rocker arm are respectively at the second swing limit position and the fourth swing limit position, the first hanging member and the second hanging member have a second distance; Wherein, the first spacing is equal to the second spacing, and is greater than or less than the spacing between the first hanging member and the second hanging member when the first rocker and the second rocker are in other swinging positions; The swing center of the first rocker and the swing center of the second rocker are on the same symmetry line; The first swing limit position and the second swing limit position are symmetrical about the symmetry line, and the third swing limit position and the fourth swing limit position are symmetrical about the symmetry line.

2. The spring testing device according to claim 1, wherein The swing center of the first rocker arm coincides with the swing center of the second rocker arm.

3. The spring testing device according to claim 1, wherein The first swing limit position and the third swing limit position are located on one side of the symmetry line; The second swing limit position and the fourth swing limit are located on the other side of the symmetry line.

4. The spring testing device according to claim 1, characterized in that, Also includes crank and connecting rod; One end of the connecting rod is rotationally connected to the crank, and the other end is rotationally connected to the first rocker or the second rocker.

5. The spring testing device according to claim 4, characterized in that, The support body has a first arc-shaped groove; The first rocker has a first mounting portion, the first mounting portion is mounted in the first arc-shaped groove, and one end of the connecting rod away from the crank is rotatably connected to the first mounting portion.

6. The spring testing device according to claim 5, characterized in that, When the first rocker arm is respectively at the first swing limit position and the second swing limit position, the first mounting portion is respectively located at two ends of the first arc groove.

7. The spring testing device according to claim 5, wherein The second rocker is rotatably mounted on the supporting body, and the second rocker has a second arc groove arranged with its rotation connection as the center.

8. The spring testing device according to claim 7, wherein, The first arc-shaped groove and the second arc-shaped groove are arranged concentrically; The first rocker also has a second mounting portion, and the second mounting portion is mounted in the second arc groove.

9. The spring testing device according to claim 8, characterized in that, When the second rocker arm is respectively at the third swing limit position and the fourth swing limit position, the second mounting portion is respectively located at two ends of the second arc groove.

10. The spring testing device according to claim 1, wherein The first rocker is provided with a slidable first slider, and the first hanging member is arranged on the first slider; and / or The second rocker is provided with a slidable second slider, and the second hanging member is arranged on the second slider.

11. The spring testing device according to claim 10, characterized in that, The first rocker is provided with a first screw rod extending along the sliding direction of the first slider, and the first screw rod is threadedly matched with the first slider; and / or The second rocker is provided with a second lead screw extending along the sliding direction of the second slider, and the second lead screw is in threaded engagement with the second slider.

12. The spring testing device according to any one of claims 1 to 11, characterized in that, It further includes a counter, and the counter has a positive terminal and a negative terminal; When the first rocker and the second rocker are respectively in the first swing limit position and the third swing limit position, the positive terminal and the negative terminal of the counter are conducted; and / or When the first rocker and the second rocker are respectively in the second swing limit position and the fourth swing limit position, the positive terminal and the negative terminal of the counter are conducted.

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