Anti-stuck test device and test method for drawstring chain window opener

Abstract

The invention discloses an anti-jamming test device and a test method for a buckle chain window opener, and the invention relates to the technical field of window opener testing. The anti-jamming test device and the test method for the buckle chain window opener, through the cooperation of a clean water transfer component, a first displacement adjustment component and a second displacement adjustment component, as the water storage tank moves upward, the water in the water storage tank gradually flows out to the clean water transfer component, so that the overall weight of the water in the water storage tank gradually decreases, thereby gradually reducing the pressure on the chain, and can achieve the dynamic change process of simulating the actual opening of the window; as the water storage tank moves downward, the water in the clean water transfer component is gradually squeezed into the water storage tank, so that the overall weight of the water in the water storage tank gradually increases, thereby gradually increasing the pressure on the chain, and can achieve the dynamic change process of simulating the actual closing of the window, and test whether the chain window opener can run smoothly and stably without jamming, so that the test result is more accurate and reliable.

Description

Technical Field

[0001] The invention relates to the technical field of window opener testing, and in particular to an anti-jamming testing device and a testing method for a drawstring chain type window opener. Background Art

[0002] The pull-chain window opener consists of a motor, a reducer, a sprocket, a chain and other components. When the motor is running, the reducer is driven to rotate through the belt. A toothed sprocket is installed on the output shaft of the reducer. The sprocket engages with the chain, and the opening and closing of the window is controlled by the extension and retraction of the chain.

[0003] A window opener chain testing device disclosed in a patent application with reference publication number CN212779895U raises the chain of the electric window opener, and the raised chain presses against the counterweight block, so that the counterweight block rises upward along the guide column until the top of the counterweight block touches the bottom of the block, and the action of the electric window opener is manually stopped. After a certain period of time, the chain is retracted to test the strength of the chain. The test has high efficiency and low cost.

[0004] Comprehensive analysis of the above reference patents shows the following defects:

[0005] In the existing anti-stuck test device and test method for the drawstring chain window opener, during the process of opening and closing the window, the window's resistance to the chain gradually decreases during the opening process, and the window's resistance to the chain gradually increases during the closing process in the actual use scenario of the drawstring chain window opener. This process dynamically changes the resistance of the chain, and it is difficult to simulate the dynamic change process of actually opening and closing the window, resulting in the anti-stuck test results being inaccurate and unreliable. Therefore, it is necessary to provide an anti-stuck test device and test method for the drawstring chain window opener to solve the above technical problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an anti-stuck test device and test method for a drawstring chain window opener, which solves the problem that in the process of opening and closing the window, the window's resistance to the chain gradually decreases during opening the window, and gradually increases during closing the window in actual use scenarios. This process dynamically changes the resistance of the chain, making it difficult to simulate the dynamic change process of actually opening and closing the window, resulting in the anti-stuck test results being not accurate and reliable.

[0007] To achieve the above purpose, the present invention is implemented by the following technical scheme: an anti-jamming test device for a buckle chain window opener, comprising a test box and an operating window opened on the front of the test box, glass sliding doors are slidably arranged on both sides of the operating window, and a first test mechanism, a second test mechanism and a third test mechanism for performing an anti-jamming test on the buckle chain window opener are arranged in sequence from left to right inside the test box, and the first test mechanism comprises:

[0008] A bracket assembly is arranged inside the test box and is used to provide support for the anti-stuck test process of the drawstring chain window opener;

[0009] A test execution component is arranged inside the bracket component and is used to perform an anti-jamming test on the drawstring chain window opener;

[0010] A counterweight assembly is arranged above the test execution assembly and is used to dynamically control the weight of the counterweight during the test execution assembly test process, so as to simulate the dynamically changing resistance of the buckle chain window opener during the window opening and closing operation in a real environment;

[0011] The No. 1 displacement adjustment component and the No. 2 displacement adjustment component are respectively arranged on the upper and lower sides of the side wall of the bracket assembly, and are used to cooperate with each other to control the weight change speed of the counterweight assembly to simulate the load state of the drawstring chain window opener under different environments.

[0012] Preferably, the bracket assembly includes a cover plate fixed to the bottom of the inner cavity of the test box by pillars, a side panel is fixedly provided at the four corners of the bottom of the cover plate, and a lifting slot is provided on the left and right opposite side walls of each of the side panels, and a scale line groove for marking the position of the counterweight assembly is evenly provided on the front side of one of the lifting slots.

[0013] Preferably, the test execution component includes a base fixedly arranged at the bottom of the inner cavity of the test box and directly below the cover plate, and a drawstring chain window opener unit to be tested is arranged on the top of the base, and the drawstring chain window opener unit includes a drawstring chain window opener body detachably arranged on the top of the base, and a chain for connecting with a counterweight assembly and pushing and pulling the counterweight assembly to simulate the window opening action is also arranged on the output end of the drawstring chain window opener body.

[0014] Preferably, the counterweight assembly includes a water tank that is slidably arranged on the opposite side walls of four side panels at the same time, a transparent observation window is arranged on the front of the water tank, and water level marking lines for marking the water level changes in the water tank are evenly opened on the outer wall of the transparent observation window, a pointer for use with the scale line groove is fixedly arranged on one side of the front of the water tank, and a clean water transfer assembly for automatically controlling the changes in the internal water volume during the lifting and lowering process of the water tank is also arranged on the side wall of the water tank.

[0015] Preferably, the clean water transfer assembly includes a water cylinder fixedly arranged at the bottom of the inner cavity of the test box and an exhaust hole opened at the top of the water cylinder, a piston is sealingly and slidably arranged inside the water cylinder, a metal tube is fixedly passed through the inside of the piston, the top end of the metal tube slides through the water cylinder and is fixedly connected to a push-pull plate, the push-pull plate is fixedly arranged on the side wall of the water storage tank, and the push-pull plate is synchronously driven to move by the power of the water tank lifting and lowering, a branch pipe connected to the inside of the water storage tank is also fixedly arranged on the side wall of the metal pipe, a first one-way valve that only allows liquid to flow from the metal pipe to the water storage tank is fixedly arranged inside the branch pipe, and a flow control unit for controlling the flow speed of clean water in the water storage tank into the inside is also arranged on the side wall of the water cylinder.

[0016] Preferably, the flow control unit includes a hose fixedly arranged below the side wall of the water cylinder, a water release control assembly is arranged at one end of the hose away from the water cylinder, and a second one-way valve for allowing only clean water to flow toward the water cylinder is also fixedly arranged inside the hose.

[0017] Preferably, the water release control component includes a water pipe fixedly arranged on the side wall of the water tank and connected with the interior thereof, a cache box connected with the interior thereof is also fixedly arranged at the bottom of the water pipe, and a sealing plate is fixedly arranged on one side of the interior of the water pipe, a through hole No. 1 for water to flow through is provided at the lower part of the outer wall of the sealing plate, a partition is provided inside the water pipe and tightly against the outer wall of the sealing plate for sealing and rotation, a through hole No. 2 with the same structure as the through hole No. 1 is provided at the upper part of the outer wall of the partition, and a transmission shaft is also fixedly arranged on the side wall of the partition away from the sealing plate, the transmission shaft rotates through the water pipe and is fixedly provided with a gear, and a position marking line for marking the position of the No. 2 through hole is provided on the side wall of the gear.

[0018] Preferably, the No. 1 displacement adjustment component includes a No. 1 bearing plate fixedly mounted on the outer wall of one of the side plates, a plurality of No. 1 limit grooves are sequentially provided on the front side of the No. 1 bearing plate from top to bottom, and a No. 1 limit block is detachably provided inside one of the No. 1 limit grooves by bolts, and a first rack is fixedly provided at one end of the No. 1 limit block.

[0019] Preferably, the No. 2 displacement adjusting component includes a No. 2 bearing plate fixedly arranged on the outer wall of one of the side plates and located directly below the No. 1 displacement adjusting component, a plurality of No. 2 limiting grooves are evenly arranged on the front side of the No. 2 bearing plate, a No. 2 limiting block is detachably arranged inside one of the No. 2 limiting grooves by bolts, an L-shaped plate is fixedly arranged at one end of the No. 2 limiting block, and a second rack is also fixedly arranged at the end of the L-shaped plate away from the No. 2 limiting block.

[0020] The present invention also provides an anti-jamming test method for a buckle chain type window opener, using an anti-jamming test device for a buckle chain type window opener, and the specific method includes the following steps:

[0021] Step 1: First, lock the buckle chain window opener to be tested at the preset position on the top of the base, and then connect the output end of the buckle chain window opener to the bottom of the water tank;

[0022] Step 2: adjust the amount of clean water in the counterweight assembly according to the use environment of the buckle chain window opener to be tested, so that the weight of the counterweight assembly is the same as the weight of the push-pull window of the buckle chain window opener under actual working conditions;

[0023] Step 3: The test execution component pushes the counterweight component to reciprocate up and down at a preset speed. Within the preset test time, if the window opener cannot work normally due to resistance or the window shakes, deviates, or cannot be completely closed, it is judged that the chain window opener has unqualified anti-jamming performance or poor anti-jamming performance. Beneficial Effects

[0024] The present invention provides an anti-jamming test device and test method for a drawstring chain window opener. Compared with the prior art, it has the following beneficial effects:

[0025] 1. A test device and method for preventing the chain window opener from getting stuck. Through the cooperation between a water tank, a clean water transfer assembly, a first displacement adjustment assembly, and a second displacement adjustment assembly, the power is turned on to start the chain window opener body, so that the chain of the chain window opener body rises upward, and the rising chain lifts the water tank loaded with water inside upward until the top of the water tank touches the top of the lifting chute, and the chain window opener body is closed to stop the action of the chain window opener for a certain period of time. Then, the chain is retracted, and the water tank moves down to its original position. During the process, as the water tank moves up, the water in the water tank gradually flows out of the clean water transfer assembly, so that the overall weight of the water tank and the water in the water tank Gradually decreases, thereby gradually reducing the pressure on the chain. In the actual process of opening the window, as the chain continues to move, the resistance of the window to the chain will gradually decrease, thereby being able to simulate the dynamic change process of actually opening the window. During the process, as the water tank moves downward, the water in the clean water transfer assembly is gradually squeezed into the water tank, so that the overall weight of the water tank and the water in the water tank gradually increases, thereby gradually increasing the pressure on the chain. In the actual process of closing the window, as the chain continues to move, the resistance of the window to the chain will gradually increase, thereby being able to simulate the dynamic change process of actually closing the window, and test whether the chain window opener can run smoothly and stably without getting stuck or malfunctioning, making the test results more accurate and reliable.

[0026] 2. A test device and method for preventing jamming of a drawstring chain window opener. Through the cooperation among test mechanism No. 1, test mechanism No. 2, test mechanism No. 3 and a water tank, since the initial water volume loaded in each water tank in test mechanism No. 1, test mechanism No. 2 and test mechanism No. 3 is different, the overall weight of the water tank in each test mechanism and the water in the water tank are different. Multiple drawstring chain window opener bodies are placed on each test mechanism in turn. Within the set time, it can simulate the influence of windows of different weights on each drawstring chain window opener, test the strength of the chain, and improve the test efficiency.

[0027] 3. A test device and method for preventing jams in a drawstring chain window opener. Through the cooperation among a water cylinder, a piston, a metal tube, a hose and a water release control assembly, the gear moves upwards as the water tank moves upwards. During the upward movement of the gear, it first meshes with the first rack, so that the second through hole gradually overlaps with the first through hole, and the water in the water tank can flow out through the overlapping portion of the second through hole and the first through hole. Then the gear separates from the first rack, and the second through hole and the first through hole keep the overlapping angle unchanged. The water in the water tank continues to flow out through the overlapping portion of the second through hole and the first through hole. After that, the gear meshes with the second rack, and the second through hole gradually rotates to its original position. The second through hole and the first through hole no longer overlap, and the water in the water tank no longer flows out. Thus, the overall weight of the water in the water tank can be changed timely and automatically, without the need to set up an additional pump body to pump out the water in the water tank, thereby reducing the cost of the device.

[0028] 4. A test device and method for preventing jamming of a drawstring chain window opener. Through the cooperation between the No. 1 limit slot, the first rack, the No. 1 limit block, the No. 2 limit slot, the second rack and the No. 2 limit block, the horizontal positions of the first rack and the second rack can be flexibly adjusted as needed. If the first rack is adjusted upward by a set distance and the second rack is adjusted downward by a corresponding distance, within the limited range of the upward movement of the gear, the portion where the first rack and the gear are meshed can be increased, and the portion where the second rack and the gear are meshed can be increased, thereby increasing the overlapping angle of the No. 2 through hole and the No. 1 through hole and increasing the speed at which water flows out of the water tank. Conversely, reducing the overlapping angle of the No. 2 through hole and the No. 1 through hole and reducing the speed at which water flows out of the water tank. This simulates the actual use scenario in which, as the chain continues to move, the resistance of the window to the chain gradually decreases, and the speed is reduced too fast or too slow, accurately reflecting different situations in the actual use scenario and improving the reliability of the test results.

[0029] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the No. 1 testing mechanism of the present invention;

[0033] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of part A;

[0034] Figure 5 This is a schematic diagram of the structure of the first testing mechanism of the present invention in an exploded state;

[0035] Figure 6 It is a schematic structural diagram of the water storage tank, chain and buckle chain window opener body in the assembled state of the present invention;

[0036] Figure 7 It is a schematic diagram of the structure of the water storage tank, chain and buckle chain window opener body in exploded state of the present invention;

[0037] Figure 8 This is a schematic diagram of the structure of the clean water transfer assembly of the present invention;

[0038] Fig. 9 This is a schematic diagram of the structure of the clean water transfer assembly in the present invention in a disassembled state;

[0039] Fig.10 It is a schematic diagram of the cross-sectional structure of the water cylinder of the present invention;

[0040] Fig.11 This is a schematic diagram of the structure of the water release control component of the present invention;

[0041] Fig.12 This is a schematic cross-sectional view of the water release control assembly of the present invention;

[0042] Fig.13 It is a schematic structural diagram of the assembly state of the partition plate and the gear of the present invention;

[0043] Fig.14 This is a schematic diagram of the structure of the first displacement regulating assembly of the present invention in an exploded state;

[0044] Fig.15It is a schematic diagram of the structure of the No. 2 displacement regulating component in the exploded state of the present invention.

[0045] In the figure: 1. test box; 2. glass sliding door; 3. test mechanism No. 1; 4. test mechanism No. 2; 5. test mechanism No. 3; 6. cover plate; 7. side plate; 8. lifting slide; 9. water storage tank; 10. water level mark line; 11. pointer; 12. scale line groove; 13. base; 14. buckle chain window opener body; 15. chain; 16. clean water transfer assembly; 161. water cylinder; 162. piston; 163. metal pipe; 164. push-pull plate; 165. branch pipe; 166. first one-way valve; 167. hose; 168. water release control assembly; 1681. water Tube; 1682, cache box; 1683, sealing plate; 1684, through hole No. 1; 1685, partition; 1686, through hole No. 2; 1687, transmission shaft; 1688, gear; 1689, position marking line; 169, second one-way valve; 17, displacement adjustment assembly No. 1; 171, bearing plate No. 1; 172, limit groove No. 1; 173, first rack; 174, limit block No. 1; 18, displacement adjustment assembly No. 2; 181, bearing plate No. 2; 182, limit groove No. 2; 183, L-shaped plate; 184, second rack; 185, limit block No. 2. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] The present invention provides two technical solutions:

[0048] like Figures 1 to 7 The first embodiment is shown: an anti-jamming test device for a buckle chain window opener, comprising a test box 1 and an operating window opened on the front of the test box 1, wherein glass sliding doors 2 are slidably arranged on both sides of the operating window, and a No. 1 test mechanism 3, a No. 2 test mechanism 4 and a No. 3 test mechanism 5 for performing an anti-jamming test on the buckle chain window opener are arranged in sequence from left to right inside the test box 1, and the No. 1 test mechanism 3, the No. 2 test mechanism 4 and the No. 3 test mechanism 5 have the same structure, and the No. 1 test mechanism 3 comprises:

[0049] A bracket assembly is arranged inside the test box 1 and is used to provide support for the anti-stuck test process of the drawstring chain window opener;

[0050] A test execution component is arranged inside the bracket component and is used to perform an anti-jamming test on the drawstring chain window opener;

[0051] A counterweight assembly is arranged above the test execution assembly and is used to dynamically control the weight of the counterweight during the test execution assembly test process, so as to simulate the dynamically changing resistance of the buckle chain window opener during the window opening and closing operation in a real environment;

[0052] The first displacement adjustment component 17 and the second displacement adjustment component 18 are respectively arranged on the upper and lower sides of the side wall of the bracket assembly, and are used to cooperate with each other to jointly control the weight change speed of the counterweight assembly to simulate the load state of the drawstring chain window opener under different environments.

[0053] Through the cooperation between the water tank 9, the clean water transfer assembly 16, the first drainage volume regulating assembly 17 and the second drainage volume regulating assembly 18, the power is turned on to start the buckle chain window opener body 14, so that the chain 15 of the buckle chain window opener body 14 rises upward, and the rising chain 15 pushes the water tank 9 loaded with water upward until the top of the water tank 9 touches the top of the lifting chute 8, closes the buckle chain window opener body 14, stops the action of the buckle chain window opener, and continues for a certain period of time. Then, the chain 15 is retracted, and the water tank 9 moves down to its original position. During the process, as the water tank 9 moves upward, the water in the water tank 9 gradually flows out of the clean water transfer assembly 16, so that the overall weight of the water tank 9 and the water in the water tank 9 gradually decreases, thereby The pressure of the chain 15 gradually decreases, and in the actual process of opening the window, as the chain 15 continues to move, the resistance of the window to the chain 15 will gradually decrease, thereby being able to simulate the dynamic change process of actually opening the window. During the process, as the water tank 9 moves downward, the water in the clean water transfer assembly 16 is gradually squeezed into the water tank 9, so that the overall weight of the water tank 9 and the water in the water tank 9 gradually increases, thereby gradually increasing the pressure on the chain 15, and in the actual process of closing the window, as the chain 15 continues to move, the resistance of the window to the chain 15 will gradually increase, thereby being able to simulate the dynamic change process of actually closing the window, and test whether the chain window opener can run smoothly and stably without getting stuck or malfunctioning, making the test results more accurate and reliable.

[0054] like Figures 8 to 15A second embodiment is shown, which mainly differs from the first embodiment in that: an anti-jamming test device for a drawstring chain window opener, the bracket assembly includes a cover plate 6 fixedly arranged at the bottom of the inner cavity of the test box 1 by a pillar, and a side plate 7 is fixedly arranged at the four corners of the bottom of the cover plate 6, and a lifting chute 8 is provided on the left and right opposite side walls of each side plate 7, and a scale groove 12 for marking the position of the counterweight assembly is evenly provided on the front of one of the lifting chute 8, and the bottom height of the lifting chute 8 is on the same horizontal line as the top of the base 13. When the water tank 9 is not supported by the base 13, the position of the water tank 9 is limited due to the lifting effect of the bottom of the lifting chute 8. When the water tank 9 is in the initial position, the second The limit block 185 is located in the second limit slot 182 at the bottom. The gear 1688 can move along the bottom of the side wall of the second rack 184 to the top of its side wall when moving upward. At this time, the No. 1 limit block 174 is installed in the No. 1 limit slot 172 at the top. The gear 1688 is meshed with the top of the side wall of the first rack 173. The test execution component includes a base 13 fixedly arranged at the bottom of the inner cavity of the test box 1 and located directly below the cover plate 6. The top of the base 13 is provided with a buckle chain window opener unit to be tested. The buckle chain window opener unit includes a buckle chain window opener body 14 detachably arranged on the top of the base 13. The output end of the buckle chain window opener body 14 is also provided with a device for connecting with a counterweight component and molding. The chain 15 that pushes and pulls the counterweight assembly in the simulated window-opening action, and a quick-connect groove for connecting to the chain 15 is fixedly provided in the middle position of the bottom of the water tank 9, and the quick-connect groove locks the chain 15 inside it through bolts; the drawstring chain window opener body 14 is driven by electricity, and a motor and a gear transmission structure are arranged inside it, which cooperate with the movement of the drive chain 15. Since the internal structure of the drawstring chain window opener body 14 is an existing known technology, its internal structure and working principle are not described in detail here. The counterweight assembly includes a water tank 9 that is simultaneously slidably arranged on the opposite side walls of the four side panels 7, and a transparent observation window is arranged on the front of the water tank 9, and the outer wall of the transparent observation window is also evenly provided with a marking device for marking the water level changes in the water tank 9. A water level mark line 10 is provided on the front side of the water tank 9, and a pointer 11 for use with the scale line groove 12 is fixedly provided, and a clean water transfer assembly 16 for automatically controlling the change of the internal water volume during the lifting process is also provided on the side wall of the water tank 9, and the overall weight of the water tank 9 itself is a known value, and a water injection port and a drain port are also provided on the outer wall of the water tank 9, and a sealing plug is detachably provided inside the water injection port and the drain port, and clean water is injected into the water tank 9 by referring to the water level mark line 10, and the overall weight of the water tank 9 increases by 0.5 kg for each rise of the clean water in the water tank 9 by a water level mark line, and by analogy, the water volume in the water tank 9 can be flexibly adjusted according to the weight of the window adapted by the buckle chain window opener;The front and rear sides of both ends of the water storage tank 9 are fixedly provided with sliders adapted to the lifting chute 8 structure, and the positions of the four sliders correspond to the positions of the four lifting chute 8 respectively, and each slider is slidably arranged in the lifting chute 8 at the corresponding position. The clean water transfer component 16 includes a water cylinder 161 fixedly arranged at the bottom of the inner cavity of the test box 1 and an exhaust hole opened at the top of the water cylinder 161. The inner sealing sliding of the water cylinder 161 is provided with a piston 162, and a metal tube 163 is fixedly penetrated inside the piston 162. The top end of the metal tube 163 slides through the water cylinder 161 and is fixedly connected with a push-pull plate 164, and the push-pull plate 164 is fixedly arranged on the side wall of the water storage tank 9. The power of lifting and lowering the water storage tank 9 synchronously drives the push-pull plate 164 to move. A branch pipe 165 connected to the inside of the water storage tank 9 is also fixedly arranged on the side wall of the metal pipe 163. A first one-way valve 166 that only allows liquid to flow from the metal pipe 163 to the water storage tank 9 is fixedly arranged inside the branch pipe 165. A flow control unit for controlling the flow speed of clean water in the water storage tank 9 to the inside is also arranged on the side wall of the water cylinder 161. The flow control unit includes a hose 167 fixedly arranged below the side wall of the water cylinder 161. A water release control component 168 is arranged at one end of the hose 167 away from the water cylinder 161, and a valve for only allowing clean water to flow to the water cylinder 161 is also fixedly arranged inside the hose 167. A second one-way valve 169 for flow in one direction, a water release control assembly 168 includes a water pipe 1681 fixedly arranged on the side wall of the water storage tank 9 and connected with the interior thereof, a buffer box 1682 connected with the interior thereof is also fixedly arranged at the bottom of the water pipe 1681, and a sealing plate 1683 is fixedly arranged on one side of the interior of the water pipe 1681, a through hole 1684 for water flow is provided below the outer wall of the sealing plate 1683, a partition 1685 is provided inside the water pipe 1681 and tightly against the outer wall of the sealing plate 1683 for sealing and rotation, a through hole 1686 with the same structure as the through hole 1684 is provided above the outer wall of the partition 1685, and the partition 1683 is provided with a second through hole 1686 having the same structure as the through hole 1684. A transmission shaft 1687 is also fixedly arranged on the side wall of the partition 1685 away from the sealing plate 1683. The transmission shaft 1687 rotates and penetrates the water pipe 1681 and is fixedly arranged with a gear 1688. A position marking line 1689 for marking the position of the second through hole 1686 is arranged on the side wall of the gear 1688. When the sealing plate 1683 and the partition 1685 are in the initial position, the first through hole 1684 is at the lowest position relative to the inner cavity of the water pipe 1681, and one end of the second through hole 1686 is close to one end of the first through hole 1684, that is, after the partition 1685 is driven from the initial position and rotates a small angle, the second through hole 1686 and the first through hole 1684 partially overlap.The top of the hose 167 is fixedly connected to the bottom of the buffer box 1682, and the clean water enters the buffer box 1682 through the No. 1 through hole 1684 and the No. 2 through hole 1686, and flows to the hose 167 through the buffer box 1682. The No. 1 drainage adjustment component 17 includes a No. 1 bearing plate 171 fixedly arranged on the outer wall of one of the side plates 7, and the No. 1 bearing plate 171 is provided with a plurality of No. 1 limiting grooves 172 in sequence from top to bottom on the front side, and a No. 1 limiting block 174 is detachably provided inside one of the No. 1 limiting grooves 172 by bolts, and one end of the No. 1 limiting block 174 is A first rack 173 is fixedly arranged, and the second displacement adjustment assembly 18 includes a second bearing plate 181 fixedly arranged on the outer wall of one of the side plates 7 and located directly below the first displacement adjustment assembly 17. A plurality of second limiting grooves 182 are evenly arranged on the front of the second bearing plate 181, and a second limiting block 185 is detachably arranged inside one of the second limiting grooves 182 by bolts, and an L-shaped plate 183 is fixedly arranged at one end of the second limiting block 185, and a second rack 184 is also fixedly arranged at the end of the L-shaped plate 183 away from the second limiting block 185. ;

[0055] Through the mutual cooperation among the No. 1 test mechanism 3, the No. 2 test mechanism 4, the No. 3 test mechanism 5 and the water tank 9, since the initial water volume loaded in each water tank 9 in the No. 1 test mechanism 3, the No. 2 test mechanism 4 and the No. 3 test mechanism 5 is different, the water tank 9 in each test mechanism and the overall weight of the water in the water tank 9 are different. A plurality of drawstring chain window opener bodies 14 are placed on each test mechanism in turn. Within the set time, it is possible to simulate the influence of windows of different weights on each drawstring chain window opener, test the strength of the chain 15, and improve the test efficiency. Through the mutual cooperation among the water cylinder 161, the piston 162, the metal tube 163, the hose 167 and the water release control assembly 168, the water tank During the upward movement of the gear 1688, the gear 1688 moves upward accordingly, and during the upward movement of the gear 1688, it first meshes with the first rack 173, so that the second through hole 1686 can gradually overlap with the first through hole 1684, and the water in the water storage tank 9 can flow out through the overlapping portion of the second through hole 1686 and the first through hole 1684, and then the gear 1688 separates from the first rack 173, and the second through hole 1686 and the first through hole 1684 keep the overlapping angle unchanged, and the water in the water storage tank 9 continues to flow out through the overlapping portion of the second through hole 1686 and the first through hole 1684, and then the gear 1688 meshes with the second rack 184, and the second through hole 1686 gradually rotates to the original position, and the second through hole 1686 and the first through hole 1684 no longer overlap When the gear 1688 is not externally driven, the transmission shaft 1687 and the water pipe 1681 will not rotate. By cooperating with each other among the first limiting groove 172, the first rack 173, the first limiting block 174, the second limiting groove 182, the second rack 184 and the second limiting block 185, the horizontal positions of the first rack 173 and the second rack 184 can be flexibly adjusted according to needs. If the first rack 173 is adjusted upward by a set distance, the second rack 184 will not rotate. By adjusting the corresponding distance downward, within the limited range of the upward movement of the gear 1688, the meshing portion of the first rack 173 and the gear 1688 can be increased, and the meshing portion of the second rack 184 and the gear 1688 can be increased, so that the overlapping angle of the second through hole 1686 and the first through hole 1684 can be increased, and the speed of water flowing out of the water tank 9 can be increased. On the contrary, the overlapping angle of the second through hole 1686 and the first through hole 1684 can be reduced, and the speed of water flowing out of the water tank 9 can be reduced. In the simulation of the actual use scenario, as the chain 15 continues to move, the resistance of the window to the chain 15 gradually decreases, and the reduction speed is too fast or too slow, which accurately reflects the different situations in the actual use scenario and improves the reliability of the test results.

[0056] The embodiment of the present invention further provides an anti-jamming test method for a buckle chain window opener, using an anti-jamming test device for a buckle chain window opener, and the specific method includes the following steps:

[0057] Step 1: first, lock the buckle chain window opener to be tested at the preset position on the top of the base 13, and then connect the output end of the buckle chain window opener to the bottom of the water tank 9; specifically, install the buckle chain window opener body 14 to be tested on the top of the base 13 inside the No. 1 test mechanism 3, the No. 2 test mechanism 4 and the No. 3 test mechanism 5, respectively, and use the fastening bolts to lock the buckle chain window opener body 14 and the base 13, and then insert the top of the chain 15 into the quick-connect groove, and use the bolts to lock its position;

[0058] The start-up buckle chain window opener body 14 pushes the chain 15 to rise or fall at a low speed and uniform speed, and the water tank 9 slides upward along the lifting chute 8 on the opposite side walls of the four side panels 7. When the water tank 9 moves upward from the initial position, the gear 1688 moves upward from the lowermost side wall of the first rack 173, and the first rack 173 drives the gear 1688 to rotate in a directional manner. When the gear 1688 and the first rack 173 are separated, the second through hole 1686 and the first through hole 1684 completely overlap, so that When the water tank 9 moves upward, the clean water inside it flows into the buffer box 1682 through the No. 1 through hole 1684 and the No. 2 through hole 1686, and flows into the water cylinder 161 through the hose 167. At the same time, the push-pull plate 164 moves upward synchronously with the water tank 9. When the piston 162 moves upward, a larger water storage space is formed between its bottom and the inner cavity of the water cylinder 161. The clean water flowing out of the hose 167 is stored in this part of the water storage space. This state is used to simulate the state of the chain 15 pushing the window to open;

[0059] When the gear 1688 first meshes with the lower side wall of the second rack 184, the gear 1688 is driven by the second rack 184 to gradually rotate in the opposite direction, and the second through hole 1686 and the first through hole 1684 gradually change from a completely overlapping state to a mutually blocked state, and the clean water cannot flow between the second through hole 1686 and the first through hole 1684. At this time, the gravity of the water tank 9 is in a stable state, which simulates the state of the window being stably supported by the chain 15 after it is opened;

[0060] When the chain 15 pulls the water tank 9 to move downward, the push-pull plate 164 pushes the metal pipe 163 downward, and the piston 162 squeezes the clean water inside the water cylinder 161. The clean water is pressurized and enters the water tank 9 again through the metal pipe 163, the branch pipe 165 and the first one-way valve 166, so that the weight of the water tank 9 itself gradually increases. This process is used to simulate the state of the window being closed by the chain 15;

[0061] When the No. 1 limit block 174 is taken out from the initial position, i.e., from the No. 1 limit slot 172 located at the top, and installed in the No. 1 limit slot 172 located at the bottom, since the initial position of the meshing of the gear 1688 and the first rack 173 remains unchanged, the length of the gear 1688 driven by the first rack 173 becomes shorter when it moves upward from the initial position, so the rotation angle of the gear 1688 decreases, i.e., the overlapped portion of the No. 2 through hole 1686 and the No. 1 through hole 1684 decreases, and the amount of clean water flowing out through the No. 1 through hole 1684 and the No. 2 through hole 1686 during the upward movement of the water tank 9 decreases, while more clean water is retained inside the water tank 9, and the chain 15 is subjected to greater resistance when pushing the water tank 9, i.e., simulating the working condition in which the chain 15 is subjected to greater resistance when pushing the window to open under different environments, such as windy or rainy and snowy weather;

[0062] When the No. 2 limit block 185 moves from the No. 2 limit slot 182 at the bottom to the No. 2 limit slot 182 at the top, the length of the gear 1688 meshing with the second rack 184 during the upward movement is reduced, so that the angle of the gear 1688 driven by the second rack 184 to rotate in the opposite direction is reduced, that is, the overlapped portion of the No. 2 through hole 1686 and the No. 1 through hole 1684 only undergoes a small change under the drive of the second rack 184, and the amount of clean water flowing out through the overlapped portion per unit time is reduced, which is used to simulate the working condition of a large resistance value on the chain 15;

[0063] It should be noted that the water storage tank 9 undergoes the following stages during the opening and closing process: an initial state, an opening process, and a closing process;

[0064] Initial state: before the window is opened, the window is connected to the buckle chain window opener body 14 through the chain 15. At this time, the window is in a static state. Due to the gravity of the window itself and the possible friction force, the window will generate a static friction force or static load on the chain 15. This force is necessary to keep the window stationary. Its magnitude is equal to the sum of the gravity of the window and other possible resistances. It is usually small in the horizontal direction and can be ignored.

[0065] Opening process:

[0066] 1 Startup phase:

[0067] When the user starts to operate the buckle chain window opener body 14, the chain 15 starts to move. The window will remain in its original static state due to inertia, so a short resistance force will be generated on the chain 15, that is, the starting resistance. As the chain 15 continues to move, this resistance force will gradually decrease until the window starts to move.

[0068] 2 Movement Phase:

[0069] Once the window starts to move, the force exerted by the window on the chain 15 changes from static friction to dynamic friction, which is smaller than static friction. During the movement of the window, due to factors such as uneven friction and uneven distribution of the window weight, the force exerted by the window on the chain 15 will fluctuate. However, as the window gradually opens, the center of gravity of the window gradually moves away from the fixed point of the chain 15, so the tension exerted on the chain 15 will gradually decrease.

[0070] 3Stable stage:

[0071] When the window reaches the preset open position, the chain 15 stops moving. At this time, the force of the window on the chain 15 mainly comes from the stabilizing force required to keep the window in this position, which is small and relatively stable.

[0072] Closing process:

[0073] During the window closing process, the change of the force exerted by the window on the chain 15 is opposite to that during the opening process, that is, the window gradually changes from a moving state to a stationary state, and the tension exerted on the chain 15 gradually increases until the window is completely closed and remains in a stationary state;

[0074] In summary, when the buckle chain window opener body 14 pushes the window to open, the force of the window on the chain 15 undergoes a change process from static friction to dynamic friction and then to stable force. The change of force in this process is affected by many factors, including the weight of the window and the friction coefficient. Therefore, by dynamically adjusting the weight of the counterweight component during the lifting process, the change of resistance of the window to the chain 15 during the opening and closing process can be more realistically simulated;

[0075] Step 2: adjust the amount of clean water in the counterweight assembly according to the use environment of the buckle chain window opener to be tested, so that the weight of the counterweight assembly is the same as the weight of the push-pull window of the buckle chain window opener under actual working conditions;

[0076] Step 3: The test execution component pushes the counterweight component to reciprocate up and down at a preset speed. Within the preset test time, if the window opener cannot work normally due to resistance or the window shakes, deviates, or cannot be completely closed, it is judged that the chain window opener has unqualified anti-jamming performance or poor anti-jamming performance.

[0077] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0078] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-jamming test device for a drawstring chain type window opener, comprising a test box (1) and an operating window opened on the front of the test box (1), wherein glass sliding doors (2) are slidably arranged on both sides of the operating window, and a first test mechanism (3), a second test mechanism (4) and a third test mechanism (5) for performing an anti-jamming test on the drawstring chain type window opener are arranged in sequence from left to right inside the test box (1), characterized in that: The first testing institution (3) comprises: A bracket assembly, arranged inside the test box (1), for providing support during the anti-jamming test process of the drawstring chain window opener; A test execution component is arranged inside the bracket component and is used to perform an anti-jamming test on the drawstring chain window opener; A counterweight assembly is arranged above the test execution assembly and is used to dynamically control the weight of the counterweight during the test execution assembly test process, so as to simulate the dynamically changing resistance encountered by the drawstring chain window opener during the window opening and closing operation process in a real environment, wherein the counterweight assembly includes a water storage tank (9) slidably arranged on the bracket assembly; The first displacement adjustment component (17) and the second displacement adjustment component (18) are respectively arranged on the upper and lower sides of the side wall of the bracket component, and are used to cooperate with each other to jointly control the weight change speed of the counterweight component to simulate the load state of the drawstring chain window opener under different environments.

2. The anti-stuck test device for a drawstring chain window opener according to claim 1, characterized in that: The support assembly comprises a cover plate (6) fixedly arranged at the bottom of the inner cavity of the test box (1) by means of pillars, a side plate (7) being fixedly arranged at each of the four corners at the bottom of the cover plate (6), and a lifting slot (8) being provided on the left and right opposite side walls of each of the side plates (7), wherein a scale line slot (12) for marking the position of the counterweight assembly is evenly provided on the front surface of one of the lifting slots (8).

3. The anti-stuck test device for a drawstring chain window opener according to claim 1, characterized in that: The test execution component comprises a base (13) fixedly arranged at the bottom of the inner cavity of the test box (1) and located directly below the cover plate (6); a buckle chain window opener unit to be tested is arranged on the top of the base (13); the buckle chain window opener unit comprises a buckle chain window opener body (14) detachably arranged on the top of the base (13); and a chain (15) for connecting to a counterweight component and pushing and pulling the counterweight component to simulate a window opening action is also arranged on the output end of the buckle chain window opener body (14).

4. The anti-jamming test device for a drawstring chain window opener according to claim 2, characterized in that: The water storage tank (9) is slidably arranged between the opposite side walls of the four side panels (7); a transparent observation window is arranged on the front of the water storage tank (9); and water level marking lines (10) for marking the change of the water level in the water storage tank (9) are evenly arranged on the outer wall of the transparent observation window; a pointer (11) for use with the scale groove (12) is fixedly arranged on one side of the front of the water storage tank (9); and a clean water transfer assembly (16) for automatically controlling the change of the water volume inside the water storage tank (9) during the lifting process is also arranged on the side wall of the water storage tank (9).

5. The anti-jamming test device for a drawstring chain window opener according to claim 4, characterized in that: The clean water transfer assembly (16) comprises a water cylinder (161) fixedly arranged at the bottom of the inner cavity of the test box (1) and an exhaust hole opened at the top of the water cylinder (161); a piston (162) is sealingly and slidably arranged inside the water cylinder (161); a metal pipe (163) is fixedly passed through the inside of the piston (162); the top end of the metal pipe (163) slides through the water cylinder (161) and is fixedly connected to a push-pull plate (164); the push-pull plate (164) is fixedly arranged at the top of the water storage tank (9) The push-pull plate (164) is driven to move synchronously by the power of the water tank (9) rising and falling. A branch pipe (165) connected to the inside of the water tank (9) is fixedly arranged on the side wall of the metal pipe (163). A first one-way valve (166) that only allows liquid to flow from the metal pipe (163) to the water tank (9) is fixedly arranged inside the branch pipe (165). A flow control unit for controlling the flow speed of clean water in the water tank (9) into the inside of the water cylinder (161) is also arranged on the side wall of the water cylinder (161).

6. The anti-jamming test device for a drawstring chain window opener according to claim 5, characterized in that: The flow control unit comprises a hose (167) fixedly arranged below the side wall of the water cylinder (161); a water release control assembly (168) is arranged at one end of the hose (167) away from the water cylinder (161); and a second one-way valve (169) for allowing only clean water to flow in the direction of the water cylinder (161) is also fixedly arranged inside the hose (167).

7. The anti-stuck test device for a drawstring chain window opener according to claim 6, characterized in that: The water release control assembly (168) comprises a water pipe (1681) fixedly arranged on the side wall of the water storage tank (9) and connected to the interior thereof, a buffer box (1682) connected to the interior thereof is also fixedly arranged at the bottom of the water pipe (1681), and a sealing plate (1683) is fixedly arranged on one side of the interior of the water pipe (1681), a through hole (1684) for water flow to pass through is provided below the outer wall of the sealing plate (1683), and a sealing hole (1684) is provided inside the water pipe (1681) and close to the outer wall of the sealing plate (1683). A partition (1685) is rotatably provided, a second through hole (1686) having the same structure as the first through hole (1684) is provided on the outer wall of the partition (1685), and a transmission shaft (1687) is fixedly provided on the side wall of the partition (1685) away from the sealing plate (1683), the transmission shaft (1687) rotatably passes through the water pipe (1681) and is fixedly provided with a gear (1688), and a position marking line (1689) for marking the position of the second through hole (1686) is provided on the side wall of the gear (1688).

8. The anti-jamming test device for a drawstring chain window opener according to claim 2, characterized in that: The No. 1 displacement adjustment assembly (17) comprises a No. 1 bearing plate (171) fixedly arranged on the outer wall of one of the side plates (7), a plurality of No. 1 limiting grooves (172) being sequentially provided on the front side of the No. 1 bearing plate (171) from top to bottom, and a No. 1 limiting block (174) being detachably provided inside one of the No. 1 limiting grooves (172) by means of bolts, and a first rack (173) being fixedly provided at one end of the No. 1 limiting block (174).

9. The anti-jamming test device for a drawstring chain window opener according to claim 2, characterized in that: The second displacement adjustment component (18) comprises a second bearing plate (181) fixedly arranged on the outer wall of one of the side plates (7) and located directly below the first displacement adjustment component (17); a plurality of second limiting grooves (182) are evenly arranged on the front surface of the second bearing plate (181); a second limiting block (185) is detachably arranged inside one of the second limiting grooves (182) by means of bolts; an L-shaped plate (183) is fixedly arranged at one end of the second limiting block (185); and a second rack (184) is also fixedly arranged at one end of the L-shaped plate (183) away from the second limiting block (185).

10. A method for testing the anti-stuckness of a drawstring chain window opener, characterized in that: Using the anti-stuck test device for a drawstring chain window opener as claimed in claim 3, the method comprises the following steps: Step 1: first, lock the buckle chain window opener to be tested at a preset position on the top of the base (13), and then connect the output end of the buckle chain window opener to the bottom of the water tank (9); Step 2: adjust the amount of clean water in the counterweight assembly according to the use environment of the buckle chain window opener to be tested, so that the weight of the counterweight assembly is the same as the weight of the push-pull window of the buckle chain window opener under actual working conditions; Step 3: The test execution component pushes the counterweight component to reciprocate up and down at a preset speed. Within the preset test time, if the window opener cannot work normally due to resistance or the window shakes, deviates, or cannot be completely closed, it is judged that the chain window opener has unqualified anti-jamming performance or poor anti-jamming performance.

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