Mechanical strength testing device for simulating high and low temperature environment

Abstract

The invention relates to the technical field of testing devices, and discloses a mechanical strength testing device for simulating a high and low temperature environment, the mechanical strength testing device comprises a temperature control box, a scale adjusting assembly is installed at the upper part in the temperature control box, and an amplitude adjusting assembly is arranged at one side of the scale adjusting assembly. According to the mechanical strength testing device for simulating the high and low temperature environment, a hinge can be detected under the condition of high and low temperature in a temperature control box, a moving block can be located at different positions of a lead screw by rotating a corresponding angle on a scale adjusting assembly, so that the swing amplitude of a swing rod is adjusted, and the detection accuracy is improved. The larger the swing amplitude of the swing rod is, the longer the moving distance of the lifting rod is, the larger the rotating amplitude of the driven fixed gear is, and therefore the larger the rotating amplitude of the driven rotating block on one side of the fixed block is, the rotating amplitude of the hinge installed on one side of the rotating block is adjusted, and different rotating amplitudes of the rotating block are adjusted according to rotation of the hinges for different purposes. The angle of the detection device can be adjusted more conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of testing devices, and particularly to a mechanical strength testing device for simulating high and low temperature environments. Background Technique

[0002] A hinge, also known as a hinge joint, is a mechanical device used to connect two solids and allow relative rotation between them. A hinge can be composed of movable components or made of foldable materials. Common hinge materials include zinc alloy, stainless steel, and iron. These material hinges have advantages such as high strength and low price, but are prone to rust. Therefore, new material hinges have emerged on the market. New material hinges mainly refer to hinges made of new materials. These new materials usually have some special properties, such as light weight, corrosion resistance, wear resistance, etc., to meet the needs of different fields. Plastic hinges are a type of new material hinge. They are mainly made of high molecular materials such as POM, PP, PA, and ABS, and have advantages such as light weight, corrosion resistance, wear resistance, pressure resistance, and noise reduction. They are widely used in fields such as household appliances, instruments, small electronic products, and stationery boxes.

[0003] This new material hinge needs to be tested when leaving the factory. Professional equipment is used to test its performance including mechanical strength. Its performance in extreme temperature environments has become one of the key factors affecting its wide application, so that the hinges leaving the factory can meet the usage requirements.

[0004] The prior art with the publication number of CN219625031U provides a door hinge strength testing device, including a base. The left side of the upper end of the base is fixedly connected with a fixed frame. A connecting frame is arranged on the right side of the fixed frame. The connecting frame and the fixed frame are rotationally connected through a hinge member. A car door body is arranged on the right side of the connecting frame. A weight block is arranged inside the load-bearing frame. A clamping seat is arranged on the right side of the lower end of the car door body. This door hinge strength testing device uses two connecting frames and the car door body for connection and fixation to install the car door body. Then, the weight block is placed in the placement groove, the weight in the load-bearing frame is adjusted, and the bearing capacity of the hinge member is changed to achieve the pressure-bearing test of the hinge member. Moreover, a driving motor is used to drive the driving gear, and it moves on the transmission rack, thereby driving the movement of the right side of the car door body to simulate the opening and closing of the car door body and achieve the opening and closing test of the hinge member, improving the practicability.

[0005] In the above-mentioned prior art, although it is possible to detect ordinary material door hinges, it does not have the function of detecting new material hinges under high and low temperature conditions. Since hinges are used in different places, the rotation amplitude and angle are different. If the existing detection equipment needs to detect different rotation angles, it may be necessary to control the stroke of the motor. Generally, the adjustment of the detection speed is also achieved by adjusting the motor speed. The control operation is inconvenient and repeated adjustment is also harmful to the motor.

[0006] It can be seen that there is a need for a mechanical strength test device that simulates high and low temperature environments to solve the problems of difficult adjustment of the rotation amplitude and detection speed of the detection equipment mentioned in the above background technology. Summary of the Invention

[0007] The purpose of the present invention is to provide a mechanical strength test device that simulates high and low temperature environments to solve the problems of difficult adjustment of the rotation amplitude and detection speed of the detection equipment mentioned in the above background technology.

[0008] To solve the above technical problems, the present invention provides the following technical solutions: A mechanical strength test device that simulates high and low temperature environments, including a temperature control box. Above the interior of the temperature control box, a scale adjustment component is installed. On one side of the scale adjustment component, an amplitude adjustment component is provided. The amplitude adjustment component includes a rotatable rotating block and a fixed fixed block, and a hinge is placed on the rotating block and the fixed block. On the side of the amplitude adjustment component away from the scale adjustment component, a speed adjustment component is installed. The rotation amplitude of the rotating block is adjusted by the scale adjustment component, and the rotation speed of the rotating block is adjusted by the speed adjustment component; The scale adjustment component includes a rotatable first adjustment knob and a second adjustment knob, and the total scale of the rotation of the first adjustment knob and the second adjustment knob is displayed on the total scale disk. Behind the total scale disk, a rotating gear is provided, and behind the rotating gear, a first bevel gear is provided; The amplitude adjustment component includes a lead screw. Above the outside of the lead screw, a movable limit block is provided. The limit block penetrates a swing rod on one side thereof, and one end of the swing rod is hinged to a lifting rod, and the other end swings following the rotation of an eccentric wheel. The bottom end of the lifting rod drives a fixed gear to rotate through a lifting block, and the fixed gear drives the rotating block to rotate through a rotating shaft; The speed adjustment component includes an output gear and an input gear, and between the output gear and the input gear, a small gear piece, a large gear piece, and a transmission gear piece rotate. The outside of the input gear is connected with a lateral movement handle, and the lateral movement handle and the input gear move laterally on their respective central axes. The input gear meshes with the small gear piece and the large gear piece respectively.

[0009] Preferably, the temperature control box includes an operation chamber in the inner cavity and a high and low temperature component installation chamber outside the operation chamber. An installation chamber is provided above the operation chamber, and the scale adjustment component is installed inside the installation chamber.

[0010] Preferably, both the first adjustment knob and the second adjustment knob are located outside the installation chamber. The first adjustment knob includes a first scale disk, the second adjustment knob includes a second scale disk, and triangular scale marks are provided above the first scale disk, the second scale disk, and the total scale disk.

[0011] Preferably, a driving gear is connected to the rear side of the first adjustment knob through a shaft. One side of the driving gear meshes with a transmission gear, one side of the transmission gear meshes with a driven gear, and a bevel gear set is connected to the front side of the driven gear.

[0012] Preferably, the bevel gear set includes an installation frame. A rear bevel gear is provided inside the installation frame and in front of the driven gear. The symmetry plane of the rear bevel gear is connected with a front bevel gear inside the installation frame. The rear bevel gear meshes with a left bevel gear and a right bevel gear on both sides respectively. The left bevel gear and the right bevel gear are both located inside the installation frame, and the other sides of the left bevel gear and the right bevel gear mesh with the front bevel gear respectively. A driving gear is provided on one side of the front bevel gear and outside the installation frame, and the driving gear is located behind the second adjustment knob. The driving gear meshes with a rotating gear.

[0013] Preferably, the amplitude adjustment component includes a fixed bin. The lead screw is located inside the fixed bin, and one end of the lead screw is connected with a second bevel gear. The second bevel gear meshes with the first adjustment knob. A moving block is arranged outside the lead screw, and the moving block moves inside the fixed bin. A limiting block is provided above the moving block.

[0014] Preferably, a limiting groove is opened inside the swing rod, and the limiting block moves inside the limiting groove. A rocker is hinged to the rear side of the limiting groove, and one end of the rocker is hinged to the column. A positioning block is connected to one side of the tail end of the swing rod, and the positioning block is located in the eccentric wheel limiting circular groove.

[0015] Preferably, the lifting rod is hinged to the lifting block. Teeth are provided on one side of the lifting block. The teeth mesh with a fixed gear. A fixed seat is arranged outside the lifting block, and the lifting block moves up and down inside the fixed seat. The teeth penetrate through the fixed seat and extend to the outside thereof. A rotating shaft is located at one end of the fixed gear, and a rotating block is connected to the outside of the rotating shaft.

[0016] Preferably, a through shaft is connected to the middle position of the output gear, and the through shaft is located on one side of the eccentric wheel. The output gear meshes with the transmission gear piece, and an inclined rod is jointly arranged among the transmission gear piece, the large gear piece and the small gear piece. The inclined rod is obliquely arranged between the output gear and the input gear.

[0017] Preferably, a transverse movement rod is arranged inside the input gear, and the input gear moves outside the transverse movement rod. A transverse movement shaft is arranged inside the transverse movement handle, and the transverse movement handle moves inside the transverse movement shaft. A driving motor is installed at the rear side of the transverse movement rod.

[0018] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: First, through the temperature control box scale adjustment component, amplitude adjustment component and hinge provided by the present invention, it is realized that the hinge can be detected under high and low temperatures inside the temperature control box. By rotating the corresponding angle on the scale adjustment component, the moving block can be located at different positions of the lead screw, thereby adjusting the swinging amplitude of the swinging rod. The greater the swinging amplitude of the swinging rod, the longer the moving distance of the lifting rod, and the greater the rotating amplitude of the fixed gear, thus driving the rotating block to rotate to a greater extent on one side of the fixed block. Thereby, the rotating amplitude of the hinge installed on one side of the rotating block is adjusted. According to the hinges with different uses, the rotating block is rotated and adjusted to different rotation amplitudes, making it more convenient to adjust the angle of the detection device.

[0019] Second, through the speed adjustment component provided by the present invention, it is realized that by horizontally moving the input gear, the input gear can change the meshing object. The sizes of the small gear piece and the large gear piece are different. After replacement, the rotation speed of the inclined rod will be different, thereby changing the rotation speed of the output gear. The output gear drives the eccentric wheel to rotate through the shaft, thereby affecting the rotation speed of the rotating block on one side of the fixed block. Without changing the rotation speed of the motor, the adjustment is convenient and can be adjusted according to different detection situations.

[0020] Third, through the scale adjustment component provided by the present invention, it is realized that the rotation amplitude can be adjusted by rotating the first adjustment knob and the second adjustment knob. The rotation angles of the first adjustment knob and the second adjustment knob will be directly displayed on the scale disk. The sum of the rotation angles of the two is the degree of the total scale disk. By using the method of adding angles, the situation that errors cannot be adjusted occurs when rotating once is avoided, and the rotation angle of the hinge detection can be controlled by rotating the angles of the first adjustment knob and the second adjustment knob. The operation is convenient and the operation difficulty is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3Schematic diagram of the connection structure of the scale adjustment component, amplitude adjustment component and speed adjustment component of the present invention; Figure 4 Schematic diagram of the connection structure of the scale adjustment component of the present invention; Figure 5 Schematic diagram of the structural disassembly of the scale adjustment component of the present invention; Figure 6 Schematic diagram of the connection structure of the bevel gear set of the present invention; Figure 7 Schematic diagram of the connection structure of the amplitude adjustment component of the present invention; Figure 8 Schematic diagram of the connection structure of the amplitude adjustment component and the speed adjustment component of the present invention; Figure 9 Schematic diagram of the structural disassembly of the amplitude adjustment component and the speed adjustment component of the present invention; Figure 10 Schematic diagram of the connection structure of the speed adjustment component of the present invention; Figure 11 Cross-sectional view of the transverse movement handle of the present invention.

[0022] Wherein: 1, temperature control box; 101, operation chamber; 102, installation chamber; 2, scale adjustment component; 201, first adjustment knob; 2011, first scale disk; 202, driving gear; 203, transmission gear; 204, driven gear; 205, bevel gear set; 2051, installation frame; 2052, rear bevel gear; 2053, left bevel gear; 2054, right bevel gear; 2055, front bevel gear; 206, driving gear; 207, second adjustment knob; 2071, second scale disk; 208, total scale disk; 209, rotating gear; 210, first bevel gear; 3, amplitude adjustment component; 301, fixed bin; 302, second bevel gear; 303, lead screw; 304, moving block; 305, limiting block; 306, swing rod; 3061, limiting groove; 3062, rocker; 3063, positioning block; 307, eccentric wheel; 308, lifting rod; 309, lifting block; 3091, teeth; 3092, fixed seat; 310, fixed gear; 311, rotating shaft; 312, rotating block; 313, fixed block; 4, hinge; 5, speed adjustment component; 501, output gear; 502, inclined rod; 503, transmission gear piece; 504, large gear piece; 505, small gear piece; 506, input gear; 5061, transverse movement rod; 507, transverse movement handle; 508, transverse movement shaft. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. 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 of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figure 1 、 2 、 3, 4, 5 and Figure 6 , a mechanical strength test device under simulated high and low temperature environments, including a temperature control box 1. Above the interior of the temperature control box 1, a scale adjustment component 2 is installed. The scale adjustment component 2 includes a rotatable first adjustment knob 201 and a second adjustment knob 207, and the total scale of the rotation of the first adjustment knob 201 and the second adjustment knob 207 is displayed on the total scale dial 208. A rotating gear 209 is provided at the rear of the total scale dial 208, and a first bevel gear 210 is provided at the rear of the rotating gear 209.

[0025] In this embodiment, the hinge 4 to be tested can be placed between the rotating block 312 and the fixed block 313, and then the sealing door connected to the front side of the temperature control box 1 is closed. When the high and low temperature component in the device is turned on, high temperature gas or low temperature gas will be transported from the outer cavity of the operation chamber 101 to its interior, changing the temperature inside the operation chamber 101, and the detection of the hinge will be realized at this temperature. A temperature controller and a control panel are installed on the front side of the operation chamber 101, which can directly control the entry of high and low temperature gas into the operation chamber 101, and the controller can also directly control the start of the drive motor in the speed adjustment component 5.

[0026] Specifically, the temperature control box 1 includes an operation chamber 101 in the inner cavity and a high and low temperature component installation chamber located outside the operation chamber 101. An installation chamber 102 is provided above the operation chamber 101, and the scale adjustment component 2 is installed inside the installation chamber 102.

[0027] In this embodiment, the rotating block 312, the fixed block 313, the rotating shaft 311, the fixed gear 310, the lifting block 309, and the lifting rod 308 are all located in the operation chamber 101. The remaining parts of the scale adjustment component 2, the amplitude adjustment component 3, and the speed adjustment component 5 are installed in the installation chamber 102. The first adjustment knob 201 and the second adjustment knob 207 located outside the installation chamber 102 facilitate direct rotation and operation by the operator. A groove for the operator to easily move the transverse movement handle 507 by hand is also provided on the front side of the installation chamber 102. A ventilation fan is provided in the cavity for installing the high and low temperature components outside the operation chamber 101 in the temperature control box 1, which is connected to a pipeline, and the high temperature and low temperature gas in the operation chamber 101 is discharged by opening a control valve, facilitating the rapid discharge of the gas after the high and low temperature test is completed.

[0028] Specifically, both the first adjustment knob 201 and the second adjustment knob 207 are located outside the installation cavity 102. The first adjustment knob 201 includes a first scale disk 2011, the second adjustment knob 207 includes a second scale disk 2071, and triangular scale marks are provided above the first scale disk 2011, the second scale disk 2071, and the total scale disk 208.

[0029] In this embodiment, the triangular scale marks are fixed. Therefore, when the first adjustment knob 201 and the second adjustment knob 207 are rotated, the first adjustment knob 201 and the second adjustment knob 207 drive the first scale disk 2011 and the second scale disk 2071 to rotate respectively, and the scales thereon can be observed through the triangular scale marks. When the first adjustment knob 201 is rotated, the second adjustment knob 207 does not rotate because the front bevel gear 2055 does not rotate, but the total scale disk 208 rotates correspondingly. When the second adjustment knob 207 is rotated, the driven gear 204 does not rotate because the rear bevel gear 2052 does not rotate, so the first adjustment knob 201 is not driven to rotate. That is to say, the rotations of the first adjustment knob 201 and the second adjustment knob 207 are separated, but both drive the total scale disk 208 to rotate. Therefore, the scale displayed on the total scale disk 208 is the sum of the rotation scales of the second adjustment knob 207 and the first adjustment knob 201.

[0030] Specifically, a driving gear 202 is connected to the rear side of the first adjustment knob 201 through a shaft. One side of the driving gear 202 meshes with a transmission gear 203, one side of the transmission gear 203 meshes with a driven gear 204, and a bevel gear set 205 is connected to the front side of the driven gear 204.

[0031] In this embodiment, side plates are connected to the rear sides of the first adjustment knob 201, the second adjustment knob 207, and the total scale disk 208. Side plates are also provided at the rear sides of the driving gear 202, the transmission gear 203, and the driven gear 204. The two groups of side plates are connected by a bottom plate, and the middle is hollow, which is convenient for installing parts such as the bevel gear set 205, the driving gear 206, the rotating gear 209, the second bevel gear 302, and the shaft. When the rear bevel gear 2052 is driven to rotate by the driven gear 204, the front bevel gear 2055 on the symmetry plane does not rotate. When the front bevel gear 2055 is driven to rotate by the second adjustment knob 207, the rear bevel gear 2052 on the opposite side does not rotate.

[0032] Specifically, the bevel gear set 205 includes a mounting frame 2051. Inside the mounting frame 2051 and on the front side of the driven gear 204, a rear bevel gear 2052 is provided. Inside the mounting frame 2051, a front bevel gear 2055 is connected to the symmetry plane of the rear bevel gear 2052. On both sides of the rear bevel gear 2052, a left bevel gear 2053 and a right bevel gear 2054 are respectively meshed. Both the left bevel gear 2053 and the right bevel gear 2054 are located inside the mounting frame 2051, and on the other side of both the left bevel gear 2053 and the right bevel gear 2054, they are meshed with the front bevel gear 2055. On one side of the front bevel gear 2055 and outside the mounting frame 2051, a driving gear 206 is provided, and the driving gear 206 is located behind the second adjusting knob 207. The driving gear 206 is meshed with the rotating gear 209.

[0033] In this embodiment, since it is necessary to satisfy that the sum of the rotation degrees of the first adjusting knob 201 and the second adjusting knob 207 is such that the total scale disk 208 and the second bevel gear 302 rotate to drive the limit block 305 to change the moving distance, the size ratios of all the gears in the scale adjusting assembly 2 and the amplitude adjusting assembly 3, including the size ratios of the bevel gears, need to be determined according to actual needs. It is better that the angle displayed on the total scale disk 208 is the actual detected rotation angle of the hinge 4. A ratchet and pawl group is provided behind the total scale disk 208. The ratchet and pawl group can prevent rotation, and the frictional force between the gears will not cause the rotating gear 209 to rotate without manually turning the first adjusting knob 201 and the second adjusting knob 207, achieving a certain self-locking function. In the ratchet and pawl group, the pawl is located on one side of the ratchet through a spring. Therefore, when it is necessary to zero the degrees, manually pull the pawl and rotate the first adjusting knob 201 and the second adjusting knob 207 to make the reading of the total scale disk 208 return to zero.

[0034] Please refer to Figure 7 、 8 and Figure 9 As shown in, a mechanical strength test device under simulated high and low temperature environments. On one side of the scale adjusting assembly 2, an amplitude adjusting assembly 3 is provided. The amplitude adjusting assembly 3 includes a rotatable rotating block 312 and a fixed fixed block 313. A hinge 4 is placed on the rotating block 312 and the fixed block 313. The amplitude adjusting assembly 3 includes a lead screw 303. Above the outside of the lead screw 303, a movable limit block 305 is provided. The limit block 305 penetrates a swing rod 306 on one side of it. One end of the swing rod 306 is hinged to a lifting rod 308, and the other end swings following the rotation of the eccentric wheel 307. The bottom end of the lifting rod 308 drives a fixed gear 310 to rotate through a lifting block 309, and the fixed gear 310 drives the rotating block 312 to rotate through a rotating shaft 311.

[0035] In this embodiment, the rotation of the second bevel gear 302 drives the movement of the moving block 304 located outside the lead screw 303. A limit groove is provided in the fixed bin 301, and the moving block 304 is restricted by the limit groove so that it can only move along a certain trajectory. When the position of the moving block 304 on the lead screw 303 is different, the fulcrum of the swing rod 306 will be different. Different fulcrums affect the descending depth of the lifting rod 308. For example, when the moving block 304 is located at the end closest to the eccentric wheel 307, when the eccentric wheel 307 drives the positioning block 3063 to rotate, the fulcrum is close to the eccentric wheel 307, and the descending distance of the lifting rod 308 is deep, and the lifting amplitude is large. Therefore, the rotation angle of the fixed gear 310 is large, which is suitable for detecting hinges with large rotation angles. When the moving block 304 is far from the eccentric wheel 307, the descending distance of the lifting rod 308 is short, and the lifting amplitude is small, making the rotation angle of the fixed gear 310 small, which is suitable for hinges with small rotation angles.

[0036] Specifically, the amplitude adjustment assembly 3 includes a fixed bin 301. The lead screw 303 is located inside the fixed bin 301, and one end of the lead screw 303 is connected to a second bevel gear 302. The second bevel gear 302 meshes with the first adjustment knob 201. A moving block 304 is provided outside the lead screw 303, and the moving block 304 moves inside the fixed bin 301. A limit block 305 is provided above the moving block 304.

[0037] In this embodiment, a convex block is hinged to one side of the limit block 305. The convex block is located inside the limit groove 3061. The convex block moves with the movement of the moving block 304, and its position inside the limit groove 3061 changes accordingly. The rocker 3062 hinged to the rear side of the swing rod 306 plays a role in assisting the overall swing of the swing rod 306. The positioning block 3063 on the front side is circular in structure and is arranged in the eccentric wheel 307. The circular groove provided at the edge of the eccentric wheel 307 just limits the positioning block 3063. Since the eccentric wheel 307 itself is an eccentric structure, when it rotates, it will drive the positioning block 3063 to move up and down, thereby driving the overall swing of the swing rod 306.

[0038] Specifically, a limit groove 3061 is provided inside the swing rod 306, and the limit block 305 moves inside the limit groove 3061. A rocker 3062 is hinged to the rear side of the limit groove 3061, and one end of the rocker 3062 is hinged to the column. One side of the tail end of the swing rod 306 is connected to a positioning block 3063, and the positioning block 3063 is located in the limit circular groove of the eccentric wheel 307.

[0039] In this embodiment, one end of the swing rod 306 is driven by the eccentric wheel 307 to move up and down, and the other end will naturally move up and down as well. The lifting rod 308 hinged to the other end will naturally drive the lifting block 309 to move up and down. The greater the swing amplitude of the swing rod 306, the lower the bottom position that the lifting block 309 can reach, and the greater the angle by which the fixed gear 310 is driven to rotate.

[0040] Specifically, the lifting rod 308 is hinged to the lifting block 309, and a tooth 3091 is provided on one side of the lifting block 309. The tooth 3091 meshes with the fixed gear 310. A fixed seat 3092 is provided outside the lifting block 309, and the lifting block 309 moves up and down inside the fixed seat 3092. The tooth 3091 penetrates the fixed seat 3092 and extends to its outside. The rotating shaft 311 is located at one end of the fixed gear 310, and a rotating block 312 is connected to the outside of the rotating shaft 311.

[0041] In this embodiment, the fixed seat 3092 is fixed inside the operation chamber 101 and below the installation chamber 102. When the lifting block 309 moves up and down, it moves inside the fixed seat 3092 while the fixed seat 3092 remains stationary, which can limit the movement of the moving lifting block 309. The tooth 3091 penetrating the fixed seat 3092 will contact and mesh with the fixed gear 310 on one side when moving up and down, so it will drive the fixed gear 310 to rotate. The length of the moving distance directly affects the rotation angle of the fixed gear 310, and thus directly affects the rotation angle of the rotating shaft 311 driving the rotating block 312. Multiple mounting holes are provided on the rotating block 312 and the fixed block 313 to facilitate connection with the hinge 4. The bodies of the rotating block 312 and the fixed block 313 use relatively thin plates to reduce the impact on the full range of angles.

[0042] Please refer to Figure 8 、 9 、10 and Figure 11 As shown in FIGS. 10 and 11, a mechanical strength testing device under simulated high and low temperature environments is provided. A speed adjustment component 5 is installed on the side of the amplitude adjustment component 3 away from the scale adjustment component 2. The rotation amplitude of the rotating block 312 is adjusted by the scale adjustment component 2, and the rotation speed of the rotating block 312 is adjusted by the speed adjustment component 5. The speed adjustment component 5 includes an output gear 501 and an input gear 506, and a small gear piece 505, a large gear piece 504, and a transmission gear piece 503 are rotated between the output gear 501 and the input gear 506. A transverse movement handle 507 is connected to the outside of the input gear 506, and the transverse movement handle 507 and the input gear 506 move transversely on their respective central axes. The input gear 506 meshes with the small gear piece 505 and the large gear piece 504 respectively.

[0043] In this embodiment, a drive motor is installed at the rear side of the input gear 506. The drive motor drives the transverse movement rod 5061 to rotate, thereby driving the input gear 506 to rotate. When the input gear 506 rotates, the transverse movement handle 507 does not affect the rotation of the input gear 506. When the input gear 506 rotates, it drives the small gear piece 505 or the large gear piece 504 on one side of it to rotate, and thus transmits the rotation to the transmission gear piece 503 through the inclined rod 502. The transmission gear piece 503 is used to drive the output gear 501 to rotate. The inclined rod 502, the transmission gear piece 503, the large gear piece 504 and the small gear piece 505 are all inclined and arranged between the output gear 501 and the input gear 506, and the inclined angles are such that the transmission gear piece 503 remains meshed with the output gear 501, and the input gear 506 remains meshed with the small gear piece 505 and the large gear piece 504.

[0044] Specifically, a through shaft is connected to the middle position of the output gear 501, and the through shaft is located on one side of the eccentric wheel 307. The output gear 501 is meshed with the transmission gear piece 503, and an inclined rod 502 is commonly arranged between the transmission gear piece 503, the large gear piece 504 and the small gear piece 505. The inclined rod 502 is inclined and arranged between the output gear 501 and the input gear 506.

[0045] In this embodiment, there is a gap in the middle part of the transverse movement handle 507, and the input gear 506 rotates in the gap. However, when the transverse movement handle 507 moves horizontally left and right, it will drive the input gear 506 to move horizontally on the transverse movement rod 5061. The transverse movement handle 507 can be of a scissor structure, hinged at the middle position, separated at the ends, and a clamping block can be connected to the ends. A spring is connected to the clamping block. When it is not necessary to move, the clamping block will clamp the transverse movement shaft 508 by the acting force of the spring to achieve the fixing purpose. When it is necessary to move, press the handle at the other end, similar to a scissor handle, so that the spring contracts and the clamping block leaves the transverse movement shaft 508, and then it can move freely.

[0046] Specifically, a transverse movement rod 5061 is arranged inside the input gear 506, and the input gear 506 moves outside the transverse movement rod 5061. A transverse movement shaft 508 is arranged inside the transverse movement handle 507, and the transverse movement handle 507 moves inside the transverse movement shaft 508. A drive motor is installed at the rear side of the transverse movement rod 5061.

[0047] In this embodiment, although the small gear piece 505 and the large gear piece 504 are different in size, on the side contacting the input gear 506, the teeth of the two are located in the same plane. Therefore, the input gear 506 that meets the requirements of lateral movement can contact gear pieces of different sizes. The gear pieces can be made of thickened metal materials to extend the service life. One end of the inclined rod 502 is provided with a support plate to facilitate providing a supporting force for the inclined rod 502. The input gear 506 changes its speed by contacting gear pieces of different sizes. According to actual usage needs, other gear pieces of different sizes can be added between the small gear piece 505 and the large gear piece 504 to achieve the purpose of adjusting multiple speeds.

[0048] During use, it is necessary to connect to an external power supply, which provides electrical energy for the device so that the device can operate normally. First, determine the rotation angle of the rotating block 312 according to the allowable rotation angle of the hinge 4 to be measured. The first adjustment knob 201 and the second adjustment knob 207 can be rotated. The sum of the rotation angles of the first adjustment knob 201 and the second adjustment knob 207 will be displayed on the total scale disk 208. Because when the first adjustment knob 201 is rotated, the driving gear 202 rotates accordingly. Through the transmission of the transmission gear 203, the driven gear 204 rotates. The rotation of the driven gear 204 drives the rear bevel gear 2052 to rotate. The rear bevel gear 2052 drives the left bevel gear 2053 and the right bevel gear 2054 to rotate around the rear bevel gear 2052 through meshing on both sides, thereby causing the mounting frame 2051 to rotate, driving the driving gear 206 to rotate. The driving gear 206 drives the rotating gear 209 on one side to rotate, causing the total scale disk 208 to rotate. The scale pointed to by the triangle mark is the rotation degree of the first adjustment knob 201. Then, the second adjustment knob 207 can be rotated. The rotation of the second adjustment knob 207 drives the front bevel gear 2055 to rotate, and thus drives the left bevel gear 2053 and the right bevel gear 2054 to rotate around the front bevel gear 2055 through meshing on both sides, driving the mounting frame 2051 to rotate and driving the driving gear 206 to rotate. Through meshing, the rotating gear 209 is driven to rotate, causing the total scale disk 208 to continue to rotate. At this time, the rotation degree is the rotation degree of the second adjustment knob 207. When the rotating gear 209 rotates, it drives the first bevel gear 210 to rotate, thereby driving the second bevel gear 302 to rotate. The rotation of the second bevel gear 302 causes the moving block 304 to move on the lead screw 303. The movement of the moving block 304 changes the fulcrum of the swing rod 306, thereby changing the swing amplitude of the swing rod 306. The closer the fulcrum is to the eccentric wheel 307, the greater the swing amplitude of the other end of the swing rod 306; the farther the fulcrum is from the eccentric wheel 307, the smaller the swing amplitude of the other end of the swing rod 306. When the swing rod 306 is driven by the eccentric wheel 307 to swing, the lifting rod 308 at the other end of the swing rod 306 drives the lifting block 309 to move up and down. The greater the swing amplitude, the greater the distance the lifting block 309 moves up and down. Since the teeth 3091 of the lifting block 309 mesh with the fixed gear 310, the fixed gear 310 is driven to rotate, thereby driving the rotating shaft 311 to rotate, causing the rotating block 312 to rotate on one side of the fixed block 313. The greater the lifting distance, the greater the rotation angle of the fixed gear 310, and the greater the amplitude of the rotation of the rotating shaft 311 on one side of the rotating block 312. A hinge 4 to be tested is installed on the rotating block 312 and the fixed block 313, which can reciprocally rotate within a certain angle range to detect the performance of the hinge 4. The rotation of the eccentric wheel 307 is driven by the shaft protruding from the output gear 501. The output gear 501 is driven by the drive motor installed at the rear side of the cross-moving rod 5061. The process is that the drive motor drives the cross-moving rod 5061, thereby driving the input gear 506 to rotate. If the input gear 506 is connected to one of the small gear piece 505 and the large gear piece 504, the tilting rod 502 can be driven to rotate through the meshing relationship, thereby driving the transmission gear piece 503. The transmission gear piece 503 meshes with the output gear 501 to drive the output gear 501 to rotate, thereby driving the eccentric wheel 307 to rotate. During this process, if the speed needs to be adjusted, the cross-moving handle 507 can be moved. Moving the cross-moving handle 507 can drive the input gear 506 to move horizontally on the cross-moving rod 5061, thereby changing the position of the cross-moving rod 5061. It can be changed from meshing with the small gear piece 505 to meshing with the large gear piece 504. Since the small gear piece 505 and the large gear piece 504 are of different sizes, although the speed of the input gear 506 remains unchanged, when the smaller small gear piece 505 meshes with the input gear 506, the speed of the tilting rod 502 will become faster, the speed of the transmission gear piece 503 will increase, and the speed of the output gear 501 driving the eccentric wheel 307 will increase. If it meshes with the larger large gear piece 504, the rotation speed of the tilting rod 502 will be slower, thereby reducing the rotation speed of the eccentric wheel 307 and reducing the rotation speed of the rotating block 312 on one side of the fixed block 313. After the adjustment is completed, the door outside the temperature control box 1 can be closed, and then the high and low temperature detection can be carried out.

[0049] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A mechanical strength testing device under simulated high and low temperature environments, comprising a temperature control box (1), characterized in that: Above the interior of the temperature control box (1), a scale adjustment component (2) is installed, and an amplitude adjustment component (3) is arranged on one side of the scale adjustment component (2). The amplitude adjustment component (3) includes a rotatable rotating block (312) and a fixed fixed block (313), and a hinge (4) is placed on the rotating block (312) and the fixed block (313). A speed adjustment component (5) is installed on the side of the amplitude adjustment component (3) away from the scale adjustment component (2). The rotation amplitude of the rotating block (312) is adjusted by the scale adjustment component (2), and the rotation speed of the rotating block (312) is adjusted by the speed adjustment component (5); The scale adjustment component (2) includes a rotatable first adjustment knob (201) and a second adjustment knob (207), and the total scale of the rotation of the first adjustment knob (201) and the second adjustment knob (207) is displayed on the total scale dial (208). A rotating gear (209) is arranged at the rear of the total scale dial (208), and a first bevel gear (210) is arranged at the rear of the rotating gear (209); The amplitude adjustment component (3) includes a lead screw (303), and a movable limit block (305) is arranged above the outer side of the lead screw (303). The limit block (305) penetrates through a swing rod (306) on one side thereof, and one end of the swing rod (306) is hinged to a lifting rod (308), and the other end swings following the rotation of an eccentric wheel (307). The bottom end of the lifting rod (308) drives a fixed gear (310) to rotate through a lifting block (309), and the fixed gear (310) drives the rotating block (312) to rotate through a rotating shaft (311); The speed adjustment component (5) includes an output gear (501) and an input gear (506), and a small gear piece (505), a large gear piece (504), and a transmission gear piece (503) rotate between the output gear (501) and the input gear (506). A transverse movement handle (507) is connected to the outside of the input gear (506), and the transverse movement handle (507) and the input gear (506) perform transverse movement on their respective central axes. The input gear (506) meshes with the small gear piece (505) and the large gear piece (504) respectively; 2. The mechanical strength testing device under simulated high and low temperature environments according to claim 1, characterized in that: The temperature control box (1) includes an operation chamber (101) in the inner cavity and a high and low temperature component installation chamber located outside the operation chamber (101). An installation chamber (102) is arranged above the operation chamber (101), and the scale adjustment component (2) is installed inside the installation chamber (102); 3. The mechanical strength testing device under simulated high and low temperature environments according to claim 2, wherein: Both the first adjustment knob (201) and the second adjustment knob (207) are located outside the installation chamber (102). The first adjustment knob (201) includes a first scale dial (2011), the second adjustment knob (207) includes a second scale dial (2071), and triangular scale marks are arranged above the first scale dial (2011), the second scale dial (2071), and the total scale dial (208); 4. A mechanical strength testing device under simulated high and low temperature environments according to claim 1, characterized in that: The rear side of the first adjusting knob (201) is connected to a driving gear (202) through a shaft, and a transmission gear (203) is engaged with one side of the driving gear (202). A driven gear (204) is engaged with one side of the transmission gear (203), and a bevel gear set (205) is connected to the front side of the driven gear (204).

5. The mechanical strength test device under simulated high and low temperature environments according to claim 4, wherein: The bevel gear set (205) includes a mounting frame (2051). A rear bevel gear (2052) is arranged inside the mounting frame (2051) and in front of the driven gear (204). A front bevel gear (2055) is connected to the symmetry plane of the rear bevel gear (2052) inside the mounting frame (2051). A left bevel gear (2053) and a right bevel gear (2054) are respectively engaged with both sides of the rear bevel gear (2052). The left bevel gear (2053) and the right bevel gear (2054) are both located inside the mounting frame (2051), and the other sides of the left bevel gear (2053) and the right bevel gear (2054) are both engaged with the front bevel gear (2055). A driving gear (206) is arranged outside the mounting frame (2051) on one side of the front bevel gear (2055), and the driving gear (206) is located behind the second adjusting knob (207). The driving gear (206) is engaged with a rotating gear (209).

6. The mechanical strength testing device under simulated high and low temperature environments according to claim 1, characterized in that: The amplitude adjusting assembly (3) includes a fixed bin (301). A lead screw (303) is located inside the fixed bin (301), and a second bevel gear (302) is connected to one end of the lead screw (303). The second bevel gear (302) is engaged with the first adjusting knob (201). A moving block (304) is arranged outside the lead screw (303), and the moving block (304) moves inside the fixed bin (301). A limiting block (305) is arranged above the moving block (304).

7. The mechanical strength testing device under simulated high and low temperature environments according to claim 1, wherein: A limiting groove (3061) is formed inside the swing rod (306), and the limiting block (305) moves inside the limiting groove (3061). A rocker (3062) is hinged to the rear side of the limiting groove (3061), and one end of the rocker (3062) is hinged to a column. A positioning block (3063) is connected to one side of the tail end of the swing rod (306), and the positioning block (3063) is located in the limiting circular groove of the eccentric wheel (307).

8. A mechanical strength testing device under simulated high and low temperature environments according to claim 1, characterized in that: The lifting rod (308) is hinged to a lifting block (309), and teeth (3091) are arranged on one side of the lifting block (309). The teeth (3091) are engaged with a fixed gear (310). A fixed seat (3092) is arranged outside the lifting block (309), and the lifting block (309) moves up and down inside the fixed seat (3092). The teeth (3091) penetrate through the fixed seat (3092) and extend to the outside thereof. A rotating shaft (311) is located at one end of the fixed gear (310), and a rotating block (312) is connected to the outside of the rotating shaft (311).

9. The mechanical strength testing device under simulated high and low temperature environments according to claim 1, characterized in that: A through-shaft is connected to the middle position of the output gear (501), and the through-shaft is located on one side of the eccentric wheel (307). The output gear (501) meshes with the transmission gear piece (503), and an inclined rod (502) is commonly provided among the transmission gear piece (503), the large gear piece (504) and the small gear piece (505). The inclined rod (502) is inclined and arranged between the output gear (501) and the input gear (506).

10. A mechanical strength testing device under simulated high and low temperature environments according to claim 1, characterized in that: A transverse movement rod (5061) is arranged inside the input gear (506), and the input gear (506) moves on the outer side of the transverse movement rod (5061). A transverse movement shaft (508) is arranged inside the transverse movement handle (507), and the transverse movement handle (507) moves inside the transverse movement shaft (508). A driving motor is installed at the rear side of the transverse movement rod (5061).

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