CN116754409B - Alloy door lock handle fatigue strength quality inspection equipment - Google Patents

Abstract

The invention discloses an alloy door lock handle fatigue strength quality inspection equipment in the technical field of door lock handle fatigue strength quality inspection. It includes an operating console and a driving motor capable of counting; the operating console is equipped with a pair of synchronously moving driving motors through a motor base. , the output shaft of the drive motor is fixedly connected to the turntable, the turntable is equipped with a pitch-adjusting chute, and the pitch-adjusting chute is slidingly connected with a pitch-adjusting slide block; each pitch-adjusting slide block is provided with a drive shaft and two The drive shaft is connected to a crossbar for rotation together; the drive shaft is provided with a locking assembly, which can stably lock the distance-adjusting slide block at any position of the distance-adjusting chute; the operating table is also provided with a torsion member , the torsion member is plugged into the door handle, the door handle is equipped with a quick-release component and a fixed shaft is installed through the quick-release component; it can simulate various working conditions of the door handle to open the door, so that the fatigue limit of the door lock handle can be accurately understood .

Description

An alloy door lock handle fatigue strength quality inspection equipment

Technical field

The invention relates to the technical field of fatigue strength quality inspection of door lock handles, and is specifically an alloy door lock handle fatigue strength quality inspection equipment.

Background technique

Door lock handles need to undergo a number of tests after they are manufactured, among which fatigue strength is a very important test item. Fatigue strength refers to the maximum stress that a material can undergo without causing damage under infinite number of alternating loads. Door lock handles The fatigue strength test is to obtain the fatigue limit of the door lock handle by repeatedly rotating and opening the door lock handle many times.

The existing fatigue strength quality inspection equipment operates under high-intensity cyclic cyclic loads, and the door lock handle rotates at an angle within 90 degrees during actual use, making it difficult for the existing fatigue strength quality inspection equipment to simulate the use of door lock handles. Therefore, it is impossible to accurately understand the fatigue limit of the door lock handle.

Contents of the invention

The technical problem of the present invention is to provide an alloy door lock handle fatigue strength quality inspection equipment that can simulate various working conditions of the door handle to open the door, thereby accurately understanding the fatigue limit of the door lock handle.

In order to achieve the above object, the present invention provides the following technical solution: including an operating console and a driving motor capable of counting; the operating console is equipped with a pair of synchronously moving driving motors through a motor base, and the output shafts of the driving motors are fixedly connected to turntables. , the turntables are equipped with distance-adjustable slide blocks that can be fixed relative to the turntable;

Each distance-adjustable slider is provided with a drive shaft, and the two drive shafts rotate together and are connected to a crossbar; when the two turntables rotate synchronously, the crossbar can be driven to translate along the circumferential trajectory on the plane where the turntable is located;

The operating table is also provided with a torsion member, and a door handle is inserted into the torsion member. A quick release assembly is installed on the door handle and a fixed shaft is installed through the quick release assembly. The fixed shaft can be lowered on the crossbar. When the door handle is driven to rotate through the quick release assembly, the torsion member accumulates force. When the cross bar rises, the torsion member drives the door handle to reset;

As a further solution of the present invention, the turntables are provided with pitch-adjusting chute, and the pitch-adjusting slide block is slidably arranged in the pitch-adjusting chute;

The driving shaft is provided with a locking component, which can stably lock the distance-adjusting slide block at any position of the distance-adjusting chute.

As a further solution of the present invention, the locking assembly includes a fixed plate fixedly connected to the drive shaft and a movable plate sleeved on the drive shaft; the fixed plate and the movable plate are respectively arranged on both sides of the turntable, and the drive There is a tightening nut threaded at the end of the shaft. By turning the tightening nut, the distance adjustment slider can be locked at any position on the distance adjustment chute in conjunction with the movable plate to achieve the purpose of distance adjustment;

As a further solution of the present invention, the driving shaft is fixedly connected to a sleeve, the sleeve is slidingly connected to a sliding rod, and the inner end of the sliding rod is fixedly connected to an extrusion ball. An extrusion spring is installed, the side wall of the casing is fixedly connected with an elastic wedge-shaped stopper, and both ends of the crossbar are provided with grooves matching the wedge-shaped stopper;

As a further solution of the present invention, the quick-release assembly includes a fixed slider fixedly connected to the fixed shaft. The bottom of the fixed slider is designed with an opening. The top of the fixed slider is slidably connected to a positioning hook. The positioning hook A positioning rack is fixedly connected to the top, and the positioning rack is engaged with a lifting rack that is slidingly connected to the fixed slider. The teeth of the lifting rack and the positioning rack are all right-angle teeth;

As a further solution of the present invention, a relief groove is provided on the back of the cross bar, a guide rod is fixedly connected in the relief groove, a positioning slider is slidably connected to the guide rod, and the positioning slider is plugged into the positioning slider. Press down the fixed shaft to rotate the baffle of the door handle, and the positioning slider is threadedly connected with positioning bolts;

As a further solution of the present invention, a positioning plate is slidably connected in the fixed slider, a positioning spring is fixedly connected between the positioning plate and the fixed slider, and the positioning plate is rotationally connected with an elastic threaded connection with the fixed slider. Bolts, the bottom of the positioning plate is fixedly connected with a blocking strip;

As a further solution of the present invention, the torsion member includes a shell, a guide rod is slidably connected to the shell, a reset slider is fixedly connected to the inner end of the guide rod, and a reset slider is fixedly connected to the guide rod. Spring, the reset slider is slidably connected to a fixed rod, the fixed rod is fixedly connected to a rotating plate, the rotating plate is fixedly connected to an insert sleeve that is rotationally connected to the shell, and the insert sleeve is provided with a square-structured slot. ;

As a further solution of the present invention, a positioning pin is slidably connected to the side wall of the plug sleeve, and a compression spring is fixedly connected between the positioning pin and the plug sleeve;

As a further solution of the present invention, a mounting slider is slidably connected to the top of the operating platform, a telescopic rod is installed between the mounting slider and the housing, and a fixing bolt is threadedly connected between the telescopic rod and the mounting slider.

Compared with the prior art, the beneficial effects of the present invention are:

1. In the present invention, the distance-adjustable slider is driven by the turntable to rotate, and the distance-adjustable slider drives the drive shaft to make circular motion along the axis of the turntable. The crossbar between the drive shafts drives the baffle to move through the positioning assembly. After the baffle contacts the fixed shaft, Press down on the fixed shaft, and the fixed shaft drives the fixed slider to descend. The fixed slider drives the door handle to rotate. When the door handle rotates to a specified angle, the distance-adjusting chute rotates from the uppermost end to the lower end. The turntable continues to rotate and the crossbar begins to rise. The door handle reverses until it is fully reset under the action of the torsion member, and the crossbar moves up and down repeatedly, causing the door handle to rotate repeatedly, thereby simulating the working conditions of the door handle when opening the door, so that the fatigue limit of the door lock handle can be accurately understood.

2. In the present invention, by adjusting the position of the distance-adjusting slide block in the distance-adjusting chute, the distance-adjusting slide block and the drive shaft are fixed on the turntable through the tightening nut, the movable plate and the fixed plate, thereby changing the up and down movement of the crossbar. distance, the farther the distance between the distance slider and the turntable axis, the greater the distance the cross bar moves up and down, the greater the door handle rotation angle when the cross bar is pressed down, and vice versa, the smaller it is, which can simulate multiple angle door opening conditions. , and thus can accurately understand the fatigue limit of the door lock handle at different angles.

Description of drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings needed to describe the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention and are not relevant to the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of the overall structure of the present invention;

Figure 2 is a schematic diagram 2 of the overall structure of the present invention;

Figure 3 is a schematic structural diagram of the crossbar and its connection relationship according to the present invention;

Figure 4 is an enlarged structural schematic diagram of position A in Figure 5 of the present invention;

Figure 5 is a schematic structural diagram of the telescopic rod and its connection relationship according to the present invention;

Figure 6 is a structural schematic diagram of the fixed slide block and its connection relationship according to the present invention;

Figure 7 is a schematic structural diagram of the torsion member of the present invention;

In the drawings, the parts represented by each number are listed as follows:

1. Operating platform; 11. Baffle; 12. Telescopic rod; 2. Driving motor; 21. Turntable; 22. Pitch-adjusting chute; 23. Pitch-adjusting slider; 24. Drive shaft; 25. Fixed plate; 26. Movable plate; 27. Tightening nut; 31. Casing; 32. Wedge stop; 33. Slide rod; 34. Squeeze ball; 35. Squeeze spring; 4. Cross bar; 51. Positioning slider; 52. Positioning bolt; 53. Relief groove; 54. Guide rod; 61. Shell; 62. Guide rod; 63. Reset slider; 64. Reset spring; 65. Fixed rod; 66. Rotating plate; 67. Insert sleeve; 68 , slot; 69. Positioning pin; 60. Pressure spring; 7. Door handle; 71. Fixed slider; 72. Positioning hook; 73. Fixed shaft; 74. Positioning plate; 75. Positioning spring; 76. Elastic bolt ; 77. Blocking bar; 78. Positioning rack; 79. Lifting rack; 8. Install slider; 9. Fixing bolts.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention. In the actual test process, door handles usually have two usage environments. The first is the non-rough type: that is, after turning the door handle, the hand resets with the door handle, and there is no rigid collision with the door handle. Second: Rough type, that is, after turning the door handle, release it immediately. This process will be accompanied by a rigid collision.

First embodiment (non-rough type)

Please refer to Figures 1-7. The present invention provides a technical solution: including an operating console 1 and a driving motor 2 capable of counting; the operating console 1 is equipped with a pair of synchronously moving driving motors 2 through a motor base, and the output shafts of the driving motors 2 are evenly spaced. A turntable 21 is fixedly connected, and the turntable 21 is provided with a distance-adjustable slide block 23 that can be relatively fixed to the turntable 21; each distance-adjustable slide block 23 is provided with a drive shaft 24, and the two drive shafts 24 share There is a crossbar 4 that is rotatably connected; when the two turntables 21 rotate synchronously, the crossbar 4 can be driven to translate along a circular trajectory on the plane where the turntables 21 are located; the operating table 1 is also provided with a torsion member, and a door handle is inserted into the torsion member. 7. A quick-release component is installed on the door handle 7 and a fixed shaft 73 is installed through the quick-release component. The fixed shaft 73 can drive the door handle 7 to rotate through the quick-release component when the cross bar 4 is lowered, so that the torsion component accumulates force. When the cross bar 4 is lowered, When the rod 4 rises, the twisting member drives the door handle 7 to return;

Each turntable 21 is provided with a pitch-adjusting chute 22, and the pitch-adjusting slide block 23 is slidably disposed in the pitch-adjusting chute 22;

The driving shaft 24 is provided with a locking assembly, which can stably lock the distance-adjusting slide block 23 at any position of the distance-adjusting chute 22 .

Before use, first insert the door handle 7 to be tested on the torsion member, then install the fixed shaft 73 on the door handle 7 through the quick release assembly, and finally move the distance-adjusting slider 23, which passes through the drive shaft 24 Drive the crossbar 4 to move, and the distance-adjusting slider 23 moves away from the axis of the turntable 21 to adjust the up-and-down movement distance of the crossbar 4 to increase, otherwise it decreases, which is used to adjust the rotation angle of the door handle 7; when the position of the distance-adjusting slider 23 is determined, it is locked The assembly stably locks the distance-adjusting slider 23 in the distance-adjusting chute 22 (install a scale next to the distance-adjusting chute 22 to determine the position of the distance-adjusting slider 23, thereby calculating that the fixed shaft 73 is blocked 11 downward compression rotation angle), the preparation is completed;

When in use, the driving motor 2 capable of counting drives the turntable 21 to rotate. The turntable 21 drives the distance-adjusting slider 23 to rotate through the distance-adjusting chute 22. The distance-adjusting slider 23 drives the end of the crossbar 4 to make a circular motion, and the height of the crossbar 4 changes. Change, when the cross bar 4 contacts the fixed shaft 73, the fixed shaft 73 drops accordingly. The fixed shaft 73 drives the door handle 7 to rotate through the quick release assembly and the torsion member accumulates force. When the door handle 7 rotates to the specified angle, the distance adjustment slide The block 23 rotates to the lower end of the turntable 21, and the turntable 21 starts to drive the cross bar 4 to rise through the distance-adjustable slide block 23. The cross bar 4 no longer presses down the door handle 7 through the fixed shaft 73, and the door handle 7 reverses the direction under the action of the torsion member. Rotate until the door handle 7 is reset (that is, the hand-grip end of the door handle 7 is level), and one rotation of the output shaft of the drive motor 2 counts as one. Repeat the above action. Each time the output shaft of the drive motor 2 rotates once, the door handle 7 is pressed down. It rotates to a specified angle once, and the crossbar 4 moves up and down repeatedly, causing the door handle 7 to rotate to a specified angle repeatedly, thereby realizing the fatigue strength quality inspection of the door handle 7, simulating door opening conditions, and thus accurately understanding Fatigue limit of door lock handle;

In the present invention, the distance-adjusting slider 23 is locked at different positions in the distance-adjusting chute 22 through the locking assembly, so that the up and down distance of the crossbar 4 during movement can be changed. The distance between the distance-adjusting slider 23 and the axis of the turntable 21 is longer. further, the greater the distance that the cross bar 4 moves up and down, the greater the rotation angle of the door handle 7 when the cross bar 4 presses down, and vice versa, the smaller the angle of the cross bar 4's downward movement. It is possible to simulate the door opening conditions at various angles, and thus the door lock handle can be accurately understood. Fatigue limits under different working conditions.

As a further solution of the present invention, the locking assembly includes a fixed plate 25 fixedly connected to the drive shaft 24 and a movable plate 26 sleeved on the drive shaft 24; the fixed plate 25 and the movable plate 26 are respectively provided on both sides of the turntable 21. The end of the drive shaft 24 is threadedly connected with a tightening nut 27. By rotating the tightening nut 27, the distance adjustment slider 23 can be locked at any position on the distance adjustment chute 22 in conjunction with the movable plate 26 to achieve distance adjustment. Purpose;

During use, the tightening nut 27 is tightened, and the tightening nut 27 presses the movable plate 26. The movable plate 26 and the fixed plate 25 fix the drive shaft 24 and the turntable 21. Otherwise, the drive shaft 24 and the turntable 21 are separated, so that the drive shaft 24 The distance adjustment slider 23 can slide on the turntable 21 to perform distance adjustment, thereby achieving the purpose of quick and easy distance adjustment.

As a further solution of the present invention, the drive shaft 24 is fixedly connected to a sleeve 31. The sleeve 31 is slidingly connected to a sliding rod 33. The inner end of the sliding rod 33 is fixedly connected to an extrusion ball 34. There is a gap between the extrusion ball 34 and the sleeve 31. An extrusion spring 35 is installed, an elastic wedge-shaped stopper 32 is fixedly connected to the side wall of the sleeve 31, and grooves matching the wedge-shaped stopper 32 are provided at both ends of the crossbar 4;

When in use, refer to Figure 4, press the sliding rod 33, and the sliding rod 33 pushes the ball 34 inward (from the perspective of Figure 4, to the left along the axis of the sleeve 31 is inward, and to the right along the axis of the sleeve 31 outward), the squeezing ball 34 compresses the squeezing spring 35, the squeezing ball 34 breaks away from the wedge-shaped stopper 32, pulls the crossbar 4 outward, and the crossbar 4 squeezes the wedge-shaped stopper 32 inward, causing the wedge-shaped stopper 32 to break away from the concave groove, so as to facilitate pulling out the cross bar 4; when installing the cross bar 4, press the sliding bar 33, the squeeze ball 34 breaks away from the wedge stop 32, the cross bar 4 is pushed inward, and the wedge stop 32 contracts. When the wedge stop 32 After fully inserting into the crossbar 4, release the sliding rod 33, squeeze the spring 35 to push the squeeze ball 34 outward, the squeeze ball 34 will spread the wedge block 32 and push it into the groove, the groove and the wedge block The block 32 cooperates to fix the cross bar 4 on the sleeve 31, realizing the rapid installation and disassembly of the cross bar 4, and conveniently replacing the cross bar 4 of different lengths (the drive motor 2 and the operating table 1 can slide, this method is a conventional method ), so that the crossbar 4 can perform fatigue strength quality inspection on multiple door handles 7 at the same time, thereby obtaining the alloy door handle fatigue curve more quickly and easily.

As a further solution of the present invention, the quick release assembly includes a fixed slider 71 fixedly connected to the fixed shaft 73. The bottom of the fixed slider 71 is designed with an opening, so that the top of the fixed slider 71 is slidably connected to a positioning hook 72, and the top of the positioning hook 72 is fixed. A positioning rack 78 is connected, and the positioning rack 78 is engaged with a lifting rack 79 that is slidingly connected to the fixed slider 71. The teeth of the lifting rack 79 and the positioning rack 78 are both right-angle teeth;

When in use, the positioning hook 72 is hung on the rotating shaft of the door handle 7, and the open side of the fixed slider 71 is placed on the door handle 7. When the position of the fixed shaft 73 needs to be adjusted, the lifting rack 79 is moved upward so that it is in contact with the positioning rack. 78 is separated. At this time, the positioning hook 72 can move freely. After the position of the fixed shaft 73 is determined, the lifting rack 79 and the positioning rack 78 are restored to mesh (because the teeth of the lifting rack 79 and the positioning rack 78 are both right-angle teeth. teeth, when moving the fixed shaft 73 toward the rotating shaft of the door handle 7, you can also directly move the fixed slide block 71). When the fixed shaft 73 descends, the right-angle teeth of the lifting rack 79 and the positioning rack 78 mesh with each other. Able to avoid disengagement.

Second embodiment (rough type)

As a further solution of the present invention, a relief groove 53 is provided on the back of the crossbar 4, and a guide rod 54 can be fixedly connected in the relief groove 53. The guide rod 54 is slidably connected with a positioning slider 51, and the positioning slider 51 is plugged in for lowering. Press the fixed shaft 73 to rotate the baffle 11 of the door handle 7, and the positioning slider 51 is threadedly connected with the positioning bolt 52;

When in use, when the cross bar 4 is lowered, the baffle 11 will be driven down through the guide rod 54. The baffle 11 will be pressed down through the fixed shaft 73 and the door handle 7 will be rotated. When the baffle 11 is separated from the fixed shaft 73, the torsion member will quickly move the door. The handle 7 is reset, thereby simulating the action of releasing the door handle 7 immediately after opening the door, increasing the use range of the equipment and improving the practicality of the equipment; in addition, insert the guide rod 54 from the opening side of the positioning slider 51 into the relief slot 53. When the positioning bolt 52 is rotated, the inner end of the positioning slider 51 moves out of the relief groove 53, and the top of the positioning slider 51 contacts the crossbar 4, so that different numbers of positioning sliders 51 can be installed, and the positioning slider 51 can be quickly installed. ;

As a further solution of the present invention, a positioning plate 74 is slidingly connected in the fixed slider 71 , a positioning spring 75 is fixedly connected between the positioning plate 74 and the fixed slider 71 , and a positioning plate 74 is rotationally connected to a threaded connection with the fixed slider 71 . The elastic bolt 76 is fixedly connected to the bottom of the positioning plate 74 with a blocking bar 77;

When it is necessary to release the door handle 7 immediately after simulating opening the door, turn the elastic bolt 76 to make the positioning plate 74 squeeze the door handle 7, thereby preventing the fixed shaft 73 from being separated from the baffle 11 and the fixed slider 71 and the door being instantly reversed. The handle 7 is detached, causing the baffle 11 to be unable to continue to drive the door handle 7 to rotate through the fixed shaft 73, thereby affecting the quality inspection of the door handle 7. The positioning spring 75 can exert force on the elastic bolt 76 through the positioning plate 74 to ensure that the elastic bolt 76 and The threads between the positioning plates 74 are in close contact, thereby preventing the elastic bolt 76 from rotating and affecting the fixation of the fixed slider 71 and the door handle 7; when the positioning plate 74 moves toward the door handle 7, the blocking bar 77 also moves toward the bottom of the door handle 7 , when there is an overlapping area between the two, the blocking strip 77 can further prevent the fixed slider 71 from being separated from the door handle 7 , causing the baffle 11 to be unable to continue to drive the door handle 7 to rotate through the fixed shaft 73 , thereby affecting the quality inspection of the door handle 7 Influence.

As a further solution of the present invention, the torsion member includes a shell 61. The shell 61 is slidably connected to a guide rod 62. The inner end of the guide rod 62 is fixedly connected to a reset slider 63. A reset spring is fixedly connected between the reset slider 63 and the guide rod 62. 64. A fixed rod 65 is slidably connected to the reset slider 63. The fixed rod 65 is fixedly connected to a rotating plate 66. The rotating plate 66 is fixedly connected to an insert sleeve 67 that is rotationally connected to the housing 61. The insert sleeve 67 is provided with a square-structured slot. 68;

When in use, the door handle 7 is inserted into the slot 68. Due to the square structure of the slot 68, when the door handle 7 rotates, the insert sleeve 67 can rotate accordingly. When the insert sleeve 67 rotates, the rotating plate 66 rotates and drives the fixing rod 65 along the insert sleeve. 67 axis rotates, the fixed rod 65 drives the reset slider 63 to move, the reset slider 63 drives the guide rod 62 to move and compresses the return spring 64. When the crossbar 4 rises, the return spring 64 pushes the reset slider 63 to move, and the reset slider 63 The fixed rod 65 and rotating plate 66 are driven to reverse, and the insert sleeve 67 resets the door handle 7 through the slot 68. During this process, the return spring 64 pushes the reset slider 63, and the reset slider 63 passes through the fixed rod 65, the rotating plate 66 and the inserting sleeve 67. The sleeve 67 exerts torque on the door handle 7. When the reset slider 63 moves to the side wall of the housing 61, the door handle 7 is reset. Since the reset slider 63 contacts the side wall of the housing 61 and cannot continue to move, it prevents the door handle 7 from continuing to rotate upward. Positioning the door handle 7 can also prevent the door handle 7 from rotating in the opposite direction, causing the door handle 7 to make useless movements, increasing the loss of the door handle 7 and affecting the quality inspection data of the door handle 7;

As a further solution of the present invention, a positioning pin 69 is slidably connected to the side wall of the plug sleeve 67, and a compression spring 60 is fixedly connected between the positioning pin 69 and the plug sleeve 67;

During use, when the door handle 7 is inserted into the plug sleeve 67 , the door handle 7 resists the positioning pin 69 , the positioning pin 69 moves upward and stretches the compression spring 60 , and the compression spring 60 presses down the positioning pin 69 to increase the door handle 7 The resistance with the positioning pin 69 prevents the door handle 7 from sliding outward or falling off directly during the detection process, thereby affecting the quality inspection of the door handle 7 .

As a further solution of the present invention, a mounting slider 8 is slidably connected to the top of the operating platform 1. A telescopic rod 12 is installed between the mounting slider 8 and the housing 61. A fixing bolt 9 is threadedly connected between the telescopic rod 12 and the mounting slider 8. ;

During use, multiple mounting slide blocks 8 are provided and arranged in pairs. Each pair of mounting slide blocks 8 can install the telescopic rod 12 and the torsion member through the fixing bolts 9, and can perform fatigue strength quality testing on multiple door handles 7 at the same time. inspection to improve quality inspection efficiency.

Claims (8)

1. An alloy door lock handle fatigue strength quality inspection equipment, including an operating console (1) and a driving motor (2) capable of counting; it is characterized in that: the operating console (1) is equipped with a synchronous movement through the motor base. For the drive motor (2), the output shaft of the drive motor (2) is fixedly connected to a turntable (21), and the turntable (21) is provided with a pitch-adjustable slider (21) that can be relatively fixed to the turntable (21). twenty three); Each distance-adjusting slider (23) is provided with a drive shaft (24), and the two drive shafts (24) are connected to a crossbar (4) for rotation together; when the two turntables (21) rotate synchronously, they can The drive crossbar (4) translates along the circular trajectory on the plane where the turntable (21) is located; The operating platform (1) is also provided with a torsion member, and a door handle (7) is inserted into the torsion member. A quick release assembly is installed on the door handle (7) and a fixed shaft (7) is installed through the quick release assembly. 73), the fixed shaft (73) can drive the door handle (7) to rotate through the quick release assembly when the cross bar (4) is lowered, so that the torsion member can accumulate force. When the cross bar (4) rises, the torsion member can drive Door handle (7) reset; The turntable (21) is provided with a distance-adjusting chute (22), and the distance-adjusting slide block (23) is slidably arranged in the distance-adjusting chute (22); The driving shaft (24) is provided with a locking assembly, which can stably lock the distance-adjusting slider (23) at any position of the distance-adjusting chute (22); The locking assembly includes a fixed plate (25) fixedly connected to the drive shaft (24) and a movable plate (26) sleeved on the drive shaft (24); the fixed plate (25) and the movable plate (26) ) are respectively arranged on both sides of the turntable (21). The end of the drive shaft (24) is threadedly connected with a tightening nut (27). By rotating the tightening nut (27), the pitch adjustment slide can be adjusted with the movable plate (26). The block (23) is locked at any position on the distance adjustment chute (22) to achieve the purpose of distance adjustment. 2. An alloy door lock handle fatigue strength quality inspection equipment according to claim 1, characterized in that: the drive shaft (24) is fixedly connected with a sleeve (31), and the sleeve (31) is slidingly connected There is a sliding rod (33), an extrusion ball (34) is fixedly connected to the inner end of the sliding rod (33), and an extrusion spring (35) is installed between the extrusion ball (34) and the sleeve (31). , the side wall of the casing (31) is fixedly connected with an elastic wedge-shaped stopper (32), and both ends of the crossbar (4) are provided with grooves that match the wedge-shaped stopper (32). 3. An alloy door lock handle fatigue strength quality inspection equipment according to claim 2, characterized in that: the quick-release component includes a fixed slider (71) fixedly connected to a fixed shaft (73), and the fixed The bottom of the slider (71) is designed with an opening. A positioning hook (72) is slidingly connected to the top of the fixed slider (71). A positioning rack (78) is fixedly connected to the top of the positioning hook (72). The positioning tooth The bar (78) is engaged with a lifting rack (79) that is slidingly connected to the fixed slider (71). The teeth of the lifting rack (79) and the positioning rack (78) are all right-angle teeth. 4. An alloy door lock handle fatigue strength quality inspection equipment according to claim 3, characterized in that: a relief groove (53) is provided on the back of the cross bar (4), and the relief groove (53) The guide rod (54) can be relatively fixedly connected inside. The guide rod (54) is slidingly connected with a positioning slider (51). The positioning slider (51) is plugged in and used to press down the fixed shaft (73) to move the door handle. (7) Rotating baffle (11), the positioning slider (51) is threadedly connected with positioning bolts (52). 5. An alloy door lock handle fatigue strength quality inspection equipment according to claim 3, characterized in that: a positioning plate (74) is slidingly connected in the fixed slider (71), and the positioning plate (74) A positioning spring (75) is fixedly connected to the fixed slider (71), and the positioning plate (74) is rotationally connected to an elastic bolt (76) threadedly connected to the fixed slider (71). The positioning plate (74) ) The bottom is fixedly connected with a blocking strip (77). 6. An alloy door lock handle fatigue strength quality inspection equipment according to claim 5, characterized in that: the torsion member includes a shell (61), and a guide rod (62) is slidably connected to the shell (61). A reset slider (63) is fixedly connected to the inner end of the guide rod (62), and a return spring (64) is fixedly connected between the reset slider (63) and the guide rod (62). The reset slider (63) There is a fixed rod (65) slidingly connected inside the 63). The fixed rod (65) is fixedly connected with a rotating plate (66). The rotating plate (66) is fixedly connected with a plug sleeve (67) that is rotationally connected with the shell (61). ), the plug sleeve (67) is provided with a square-structured slot (68). 7. An alloy door lock handle fatigue strength quality inspection equipment according to claim 6, characterized in that: the side wall of the plug sleeve (67) is slidingly connected with a positioning pin (69), and the positioning pin (69) A compression spring (60) is fixedly connected to the insert sleeve (67). 8. An alloy door lock handle fatigue strength quality inspection equipment according to claim 7, characterized in that: a mounting slider (8) is slidably connected to the top of the operating console (1), and the mounting slider (8) ) and the housing (61), a telescopic rod (12) is installed, and a fixing bolt (9) is threadedly connected between the telescopic rod (12) and the mounting slider (8).