Load assembly for floor spring detection

Abstract

The utility model relates to the technical field of floor spring detection, in particular to a load assembly for floor spring detection, which comprises a detection door frame and a plurality of counterweight rods, the detection door frame is provided with a rotating stand column, the upper end of the rotating stand column is provided with a connecting cylinder, and the lower end of the rotating stand column is provided with a test hole used for being connected with a line shaft of a floor spring. The axis of the connecting cylinder coincides with the axis of the test hole, the detection door frame is provided with balance weight grooves which are used for placing balance weight rods and are sequentially stacked from bottom to top, and pressing devices used for pressing one ends of the balance weight rods are arranged in the balance weight grooves. By implementing the load assembly for floor spring detection, the durability of the floor spring can be detected in different load bearing states, and the smoothness of durability detection of the floor spring can also be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of floor spring detection, in particular to a load component for floor spring detection. Background Art

[0002] A floor spring is a hydraulic door closer whose spring compression mechanism uses a worm gear rather than a rack and pinion. It's primarily used for bidirectional door opening and bears the weight of the door, so the weight of the door plays a crucial role in determining the selection of the floor spring. Floor spring quality is highly dependent on structural design and machining accuracy. Because bidirectional door leaves exert significant forces along the plane of the door leaf on the floor spring, the service life of floor springs varies significantly between grades and under varying loads. The key to a floor spring's load-bearing capacity lies in the bearing seat, which determines its load-bearing rating. Floor springs of varying quality can have varying durability, necessitating durability testing.

[0003] The floor spring testing device in the prior art generally includes a frame and a load assembly. The floor spring to be tested is installed on the frame. The load assembly is provided with a test hole for connecting to the floor spring's axis. The load assembly is also provided with a connecting cylinder rotatably connected to the frame. The durability of the floor spring is tested by analyzing the number of times the load assembly swings back and forth through video analysis or a sensor and a counter.

[0004] However, most load assemblies in the prior art do not have counterweights that change the weight, and are unable to detect the durability of floor springs under different load conditions; some load assemblies are also equipped with counterweights, but the connection between these counterweights and auxiliary components is relatively loose, and they are prone to shaking or even leaving the load assembly while following the swing of the load assembly, affecting the smoothness of the floor spring durability test. Utility Model Content

[0005] The technical problem to be solved by the present invention is to provide a load assembly for floor spring detection, which can detect the durability of the floor spring under different load states and ensure the smoothness of the floor spring durability detection.

[0006] In order to solve the above technical problems, the utility model provides a load assembly for floor spring detection, including a detection door frame and multiple counterweight rods, the detection door frame is provided with a rotating column, the upper end of the rotating column is provided with a connecting cylinder, the lower end of the rotating column is provided with a test hole for connecting to the ceiling axis of the floor spring, the axis of the connecting cylinder coincides with the axis of the test hole, the detection door frame is provided with a counterweight groove for placing the counterweight rods and stacking them in sequence from bottom to top, and the counterweight groove is provided with a clamping device for clamping one end of the counterweight rod.

[0007] As an improvement to the above solution, the counterweight groove is arranged at a lower position in the detection door frame.

[0008] As an improvement of the above scheme, the counterweight groove includes two guide grooves arranged opposite to each other and vertically. The upper end of the guide groove is provided with an inlet for inserting the end of the counterweight rod. The gap distance between the two guide grooves is smaller than the length of the counterweight rod.

[0009] As an improvement of the above-mentioned solution, the load assembly for floor spring detection of the present invention also includes a plurality of supporting members for supporting the counterweight rod. The guide groove is provided with a plurality of mounting holes equidistantly spaced from bottom to top for the supporting members to extend into. The mounting holes pass through the front and rear sides of the guide groove, and the gap distance between two adjacent mounting holes above and below is greater than the outer diameter of the counterweight rod.

[0010] As an improvement to the above scheme, the mounting hole is a rectangular hole whose length direction is parallel to the horizontal plane, and the supporting member includes a supporting round rod for being placed in the guide groove to support the counterweight rod, a rectangular block fixed at one end of the supporting round rod and matching the rectangular hole, and a circular limit block fixed at the other end of the supporting round rod and having an outer diameter greater than the width of the rectangular hole.

[0011] As an improvement to the above solution, outwardly extending supporting plates are provided on both the front and rear sides of the introduction port.

[0012] As an improvement to the above solution, a transition fillet is provided at the inner corner of the guide groove.

[0013] As an improvement of the above solution, the clamping device includes a clamping vertical plate that is slidably connected to the counterweight groove and whose inner side is used for the counterweight, and a driving member installed on the detection door frame for driving the clamping vertical plate to move inward.

[0014] As an improvement to the above solution, a plurality of guide rods connected to the detection door frame for left and right sliding are provided on the outer side of the clamping vertical plate, and a soft cushion is provided on the inner side of the clamping vertical plate.

[0015] The implementation of this utility model has the following beneficial effects:

[0016] The load assembly for floor spring testing in the embodiment of the utility model cooperates with the testing door frame, the counterweight rod, the rotating column, the connecting cylinder, the test hole, the counterweight groove and the clamping device. The number of the counterweight rods in the counterweight groove can be adjusted to adjust the load of the testing door frame on the floor spring, and the durability of the floor spring can be tested under different load conditions. In addition, the relative position of the counterweight rod and the testing door frame can be fixed by the clamping device to prevent the counterweight rod from shaking relative to the testing door frame during the process of swinging back and forth with the testing door frame. The counterweight rod can also be placed away from the testing door frame to ensure the smoothness of the floor spring durability test. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a load assembly for floor spring testing in an embodiment of the present utility model;

[0018] Figure 2 This is a front view of the working principle of the pressing device in the embodiment of the utility model;

[0019] Figure 3 This is a diagram showing the working principle of the supporting member in an embodiment of the present utility model;

[0020] Figure 4 This is a working principle diagram of the supporting round rod in the embodiment of the utility model;

[0021] Figure 5 This is a top view of the working principle of the pressing device in the embodiment of the present utility model.

[0022] In the figure: 1. Detection door frame; 2. Counterweight rod; 3. Rotating column; 4. Connecting cylinder; 5. Test hole; 6. Counterweight groove; 7. Clamping device; 8. Guide groove; 9. Inlet; 10. Support member; 11. Mounting hole; 12. Supporting round rod; 13. Rectangular block; 14. Circular limit block; 15. Supporting flat plate; 16. Transition fillet; 17. Clamping vertical plate; 18. Driving member; 19. Guide rod; 20. Cushion. DETAILED DESCRIPTION

[0023] The following is a further description of the present invention in conjunction with the accompanying drawings and specific embodiments to facilitate a clearer understanding of the technical concept claimed in the present invention. It is hereby stated that any directional terms such as "up," "down," "left," "right," "front," "back," "inside," and "outside" that appear or will appear in the present invention are based solely on the drawings and are not intended to limit the present invention.

[0024] like Figures 1 to 5 As shown, a load assembly for floor spring detection in an embodiment of the present invention includes a detection door frame 1 and a plurality of counterweight rods 2. The detection door frame 1 is provided with a rotating column 3, the upper end of the rotating column 3 is provided with a connecting cylinder 4, and the lower end of the rotating column 3 is provided with a test hole 5 for connecting to the ceiling axis of the floor spring, and the axis center of the connecting cylinder 4 coincides with the axis center of the test hole 5. In fact, the connecting cylinder 4 is used to be rotatably connected to the external frame, and can be slidably connected up and down relative to the external frame. For example, the external frame can be equipped with a round through hole matching the connecting cylinder 4, so that the connecting cylinder 4 is rotatably connected to the external frame and can slide up and down relative to the external frame. When the floor spring needs to be tested for durability, the detection door frame 1 is lifted to move the connecting cylinder 4 upward relative to the external frame, and then the floor spring is placed under the test hole 5, and then the detection door frame 1 is lowered to connect the test hole 5 with the axial axis of the floor spring, completing the installation connection between the detection door frame 1 and the floor spring, so that the detection door frame 1 can drive the axial axis of the floor spring to swing back and forth, and the floor spring can support the weight of the detection door frame 1, in preparation for subsequent floor spring durability testing.

[0025] The inspection door frame 1 is provided with a counterweight slot 6 for the counterweight rods 2 to be placed in and stacked in sequence from bottom to top. The counterweight slot 6 is provided with a clamping device 7 for clamping one end of the counterweight rod 2. In fact, by changing the number of counterweight rods 2 in the counterweight slot 6, the gravity acting on the floor spring by the inspection door frame 1 is changed, thereby changing the load of the floor spring, so as to test the durability of the floor spring under different loads; the length of the counterweight slot 6 is greater than the length of the counterweight rod 2, which is convenient for putting in and taking out the counterweight rod 2. The clamping device 7 can be a plurality of clamping cylinders or a plurality of clamping bolts. When the counterweight rod 2 is placed in the clamping device 7, the clamping device 7 presses against one end of the counterweight rod 2 and pushes the other end of the counterweight rod 2 against the slot wall of the counterweight slot 6 or the inner wall of the inspection door frame 1, so as to fix the relative position of the counterweight rod 2 and the inspection door frame 1, and prevent the counterweight rod 2 from falling off the inspection door frame 1 when it swings back and forth with the inspection door frame, thereby ensuring the smoothness of the floor spring durability test.

[0026] The load assembly for floor spring testing in the embodiment of the utility model cooperates with the testing door frame 1, the counterweight rod 2, the rotating column 3, the connecting cylinder 4, the test hole 5, the counterweight groove 6 and the clamping device 7. The number of the counterweight rods 2 in the counterweight groove 6 can be adjusted to adjust the load of the testing door frame 1 on the floor spring, and the durability of the floor spring can be tested under different load conditions. In addition, the clamping device 7 can also fix the relative position of the counterweight rod 2 and the testing door frame 1 to prevent the counterweight rod 2 from shaking relative to the testing door frame 1 during the process of swinging back and forth with the testing door frame 1, and can also place the counterweight rod 2 away from the testing door frame 1 to ensure the smoothness of the floor spring durability test.

[0027] Specifically, the counterweight slot 6 is preferably arranged in the lower position within the detection door frame 1, so that the counterweight rod 2 is prevented from being in the lower position within the detection door frame 1, ensuring that the weight of the counterweight rod 2 is transferred to the floor spring through the test hole 5, and the upper part of the detection door frame 1 leaves space for the counterweight rod 2 to enter and exit the counterweight slot 6, making it convenient for the counterweight rod 2 to be installed in or removed from the counterweight slot 6.

[0028] Specifically, the counterweight groove 6 preferably includes two guide grooves 8 arranged opposite to each other and vertically, and the upper end of the guide groove 8 is provided with an inlet 9 for the end of the counterweight rod 2 to be placed therein, and the gap between the two guide grooves 8 is less than the length of the counterweight rod 2. In fact, if Figure 1 As shown, two guide grooves 8 arranged opposite to each other on the left and right sides are respectively used to accommodate the left and right parts of the counterweight rod 2 to ensure that the position of the counterweight rod 2 can be limited. In addition, the gap between the two guide grooves 8 exposes the middle part of the counterweight rod 2 so that the operator can observe the number of counterweight grooves 6 to confirm the total load of the door frame 1 acting on the floor spring.

[0029] More specifically, the load assembly for floor spring testing of the present invention preferably also includes a plurality of supporting members 10 for supporting the counterweight rod 2. The guide groove 8 is provided with a plurality of mounting holes 11 equidistantly spaced from bottom to top for the supporting members 10 to extend into. The mounting holes 11 pass through the front and rear sides of the guide groove 8, and the gap between two adjacent mounting holes 11 is greater than the outer diameter of the counterweight rod 2. Before the counterweight rod 2 needs to be placed, the two adjacent supporting members 10 are first respectively inserted into the two mounting holes 11 at the same height of the two guide grooves 8, and then the counterweight rod 2 is placed. If the counterweight rod 2 is placed repeatedly from bottom to top, the two adjacent counterweight rods 2 can be separated, preventing the operator from pinching the hand when placing the counterweight rod 2 or making it easier for the operator to reach between the two adjacent counterweight rods 2 when taking out the counterweight rod 2.

[0030] It is worth mentioning that the mounting hole 11 is preferably a rectangular hole whose length direction is parallel to the horizontal plane, and the supporting member 10 includes a supporting round rod 12 for being placed in the guide groove 8 to support the counterweight rod 2, a rectangular block 13 fixed at one end of the supporting round rod 12 and matching the rectangular hole, and a circular limit block 14 fixed at the other end of the supporting round rod 12 and having an outer diameter greater than the width of the rectangular hole. In fact, when the supporting member 10 needs to be extended into the mounting hole 11, the rectangular block 13 is extended from one end of the mounting hole 11 and extended from the other end of the mounting hole 11 until the circular limit block 14 is against one end of the mounting hole 11, and the supporting member 10 is rotated so that the length direction of the rectangular block 13 is perpendicular to the horizontal plane, so that the rectangular block 13 and the circular limit block 14 are respectively stuck at the two ends of the mounting hole 11 and limit the supporting round rod 12 to be placed in the guide groove 8 to support the counterweight rod 2; when the supporting member 10 needs to be removed, the supporting member 10 is rotated so that the length direction of the mounting hole 11 is parallel to the horizontal plane, and the rectangular block 13 can pass through the mounting hole 11 so that the supporting member 10 leaves the mounting hole 11 as a whole.

[0031] It should be noted that both the front and rear sides of the inlet 9 are preferably provided with outwardly extending support plates 15. In practice, the support plates 15 on the front side of the inlet 9 extend forward, while the support plates 15 on the rear side of the inlet 9 extend rearward, serving to support the ends of the counterweight rod 2 during the insertion process and also preventing the counterweight rod 2 from striking the guide opening when being inserted. Furthermore, the inner corners of the guide slot 8 are preferably provided with transition fillets 16 to reduce the sharpness of the inner corners of the guide slot 8, making it more operator-friendly.

[0032] Specifically, the pressing device 7 preferably includes a pressing vertical plate 17 that is slidably connected to the counterweight groove 6 and has an inner side for engaging the counterweight, and a driving member 18 installed on the detection door frame 1 for driving the pressing vertical plate 17 to move inward. In practice, the driving member 18 can be a cylinder or a bolt. In this embodiment, the driving member 18 is preferably a bolt structure. Compared with the use of a cylinder, there is no need for an additional air pipe to be connected, which reduces the wind direction that entangles the air pipe when the detection door frame 1 swings, and drives the pressing vertical plate 17 to slide left and right to simultaneously compress multiple counterweight rods.

[0033] More specifically, the outer side of the clamping vertical plate 17 is provided with a plurality of guide rods 19 which are connected to the detection door frame 1 for left and right sliding, so as to realize the left and right sliding connection between the clamping vertical plate 17 and the detection door frame 1; the inner side of the clamping vertical plate 17 is preferably provided with a soft pad 20. In fact, the inner side of the clamping vertical plate 17 is the side facing the end of the counterweight rod 2. Through the setting of the soft pad 20, the rigid collision between the end of the counterweight rod 2 and the inner side of the clamping vertical plate 17 is avoided, the loss of the counterweight rod 2 and the clamping vertical plate 17 is reduced, and the service life of the counterweight rod 2 and the clamping vertical plate 17 is extended.

[0034] The above are only specific embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A load assembly for floor spring testing, characterized by: It includes a detection door frame and multiple counterweight rods. The detection door frame is provided with a rotating column. The upper end of the rotating column is provided with a connecting cylinder. The lower end of the rotating column is provided with a test hole for connecting to the axial axis of the floor spring. The axis of the connecting cylinder coincides with the axis of the test hole. The detection door frame is provided with a counterweight groove for placing the counterweight rods and stacking them in sequence from bottom to top. A clamping device is provided in the counterweight groove for clamping one end of the counterweight rod.

2. A load assembly for floor spring testing according to claim 1, characterized in that: The counterweight groove is arranged at a lower position in the detection door frame.

3. The load assembly for floor spring testing according to claim 1, wherein: The counterweight groove includes two guide grooves arranged opposite to each other and vertically. The upper end of the guide groove is provided with an introduction port for inserting the end of the counterweight rod. The gap distance between the two guide grooves is less than the length of the counterweight rod.

4. The load assembly for floor spring testing according to claim 3, wherein: It also includes multiple supporting members for supporting the counterweight rod. The guide groove is provided with multiple mounting holes equidistantly spaced from bottom to top for the supporting members to extend into. The mounting holes pass through the front and rear sides of the guide groove, and the gap distance between two adjacent mounting holes above and below is greater than the outer diameter of the counterweight rod.

5. The load assembly for floor spring testing according to claim 4, characterized in that: The mounting hole is a rectangular hole whose length direction is parallel to the horizontal plane. The supporting member includes a supporting round rod for being placed in the guide groove to support the counterweight rod, a rectangular block fixed at one end of the supporting round rod and matching the rectangular hole, and a circular limit block fixed at the other end of the supporting round rod and having an outer diameter greater than the width of the rectangular hole.

6. The load assembly for floor spring testing according to claim 3, wherein: The front and rear sides of the introduction port are both provided with supporting flat plates extending outwards.

7. The load assembly for floor spring testing according to claim 6, characterized in that: A transition fillet is provided at the inner corner of the guide groove.

8. The load assembly for floor spring testing according to claim 1, wherein: The pressing device includes a pressing vertical plate which is connected to the counterweight groove in a left-right sliding manner and the inner side of which is used for the counterweight, and a driving member which is installed in the detection door frame and is used to drive the pressing vertical plate to move inward.

9. The load assembly for floor spring testing according to claim 8, characterized in that: A plurality of guide rods connected to the detection door frame for left and right sliding are provided on the outer side of the clamping vertical plate, and a soft pad is provided on the inner side of the clamping vertical plate.

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