Precise spring tension testing device

Abstract

The utility model relates to the technical field of springs, in particular to a precise spring tension testing device which comprises a base, folding grooves are formed in the two sides of the interior of the base, a testing device is rotationally installed in the two folding grooves, the testing device comprises two testing rods, the two testing rods are connected with the folding grooves in a hinged mode, and the testing rods are connected with the folding grooves in a hinged mode. Fixing structures are fixedly installed on the two sides of the top of the base. Through the testing device and the fixing structure, when the device is not used in a normal state, the testing rods lie horizontally in the turnover grooves, the device can be conveniently stored in a storage box to be transported and carried at the moment, when the device needs to be used, the two testing rods are turned out of the turnover grooves, and the two sides of the testing rods can be clamped and fixed through the clamping plates on the two sides at the moment; at the moment, the test rod is perpendicular to the base, and a spring tension test can be carried out, so that folding work is completed, the portability of equipment is improved, and the purposes of convenient transportation and storage are achieved.

Description

Technical Field

[0001] This utility model relates to the field of spring technology, specifically a precision spring tension testing device. Background Technology

[0002] A spring is a mechanical part that works by utilizing elasticity. Made of elastic material, it deforms under external force and returns to its original shape after the force is removed. It is also called a "spring". They are generally made of spring steel. Springs come in a wide variety of types. Classified by shape, they mainly include helical springs, spiral springs, leaf springs, and irregularly shaped springs. Spring tension testing is an experimental method used to measure the performance of a spring under stress, primarily for evaluating key parameters such as tension, stiffness, elastic limit, and fatigue life.

[0003] Existing precision spring tension testing devices still have certain shortcomings in practical use: existing tension testing devices lack a structure that facilitates the transportation and storage of the device, which makes the device large in size and non-foldable, making it difficult to carry to the field or different workplaces, limiting the application scenarios of the device, and making it unsuitable for scenarios that require mobile testing. Based on the shortcomings of existing technology, this utility model designs a precision spring tension testing device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a precision spring tension testing device, which features a foldable design that improves portability and facilitates transportation and storage.

[0005] This utility model provides the following technical solution: a precision spring tension testing device, including a base, with folding grooves on both sides of the base, and a testing device rotatably installed inside the two folding grooves. The testing device includes two testing rods, which are hinged to the folding grooves. Fixing structures are fixedly installed on both sides of the top of the base. The two fixing structures include L-shaped plates, with fastening bolts threaded inside the two L-shaped plates and threadedly connected to the base. A clamping plate is slidably installed inside the two L-shaped plates, and a pull plate is fixedly installed on one side of the outer surface of the two clamping plates. A limiting cylinder is fixedly installed on one side of the outer surface of the two L-shaped plates, and a tension spring is fixedly installed inside the two limiting cylinders. One end of the tension spring is fixedly connected to the inner side of the clamping plate.

[0006] As a preferred embodiment of this utility model, test components are provided on the inner sides of the two test rods, and a first support platform is provided between the two test components.

[0007] As a preferred embodiment of this utility model, a second support platform is fixedly installed on the top of the two test rods, and hook assemblies are fixedly installed on the top of the first support platform and the bottom of the second support platform.

[0008] As a preferred embodiment of the present invention, the two hook assemblies include a fixed platform, and the two fixed platforms are respectively fixedly connected to the first support platform and the second support platform.

[0009] As a preferred embodiment of this utility model, hooks are fixedly installed on the top of the two fixed platforms, and a side groove is formed on one side of the outer surface of the two hooks.

[0010] As a preferred embodiment of this utility model, sleeves are slidably installed inside the two hooks, and pull rods are fixedly installed on one side of the outer surface of the two sleeves.

[0011] As a preferred embodiment of this utility model, the two pull rods pass through the side groove, and a fixing hole is provided on one side of the outer surface of the hook.

[0012] As a preferred embodiment of this utility model, two blocking structures are fixedly installed on the top of the base. The two blocking structures include rotating rods, and baffles are fixedly installed on the outer surfaces of the two rotating rods.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This precision spring tension testing device, through its testing device and fixing structure, allows the test rods to lie horizontally inside the folding groove when the device is not in use. This makes the device easy to store in a storage box for transport and carrying. When the device is needed, the two test rods are flipped out of the folding groove, and the two side clamps secure the test rods. The test rods are then perpendicular to the base, allowing for spring tension testing. When the test is complete and the device needs to be folded again, simply pull the two side plates, causing the clamps to slide inside the L-shaped plate. This releases the clamps from the test rods, allowing them to be laid down. Releasing the pull plates releases the tension spring, pushing the clamps back to their original position, thus completing the folding process and improving the device's portability, facilitating transportation and storage.

[0015] 2. This precision spring tension testing device, through the hook assembly, allows for quick fixation of both ends of the spring during spring tension testing by placing both ends of the spring inside the hook, and then pulling the lever to cause the sleeve to slide rapidly inside the hook until one end of the sleeve is fixed in the fixing hole. This improves the testing speed. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the appearance and structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the first support platform structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the fixing structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the hook structure of this utility model;

[0020] Figure 5 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Base; 2. Folding groove; 3. Testing device; 31. Testing rod; 32. Testing assembly; 33. First support platform; 34. Second support platform; 4. Fixing structure; 41. L-shaped plate; 42. Fastening bolt; 43. Clamping plate; 44. Pull plate; 45. Limiting cylinder; 46. Tension spring; 5. Blocking structure; 51. Rotating rod; 52. Baffle; 6. Hook assembly; 61. Fixing platform; 62. Hook; 63. Side groove; 64. Sleeve column; 65. Pull rod; 66. Fixing hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 A precision spring tension testing device includes a base 1. Folding grooves 2 are formed on both sides of the base 1. A testing device 3 is rotatably mounted inside the two folding grooves 2. The testing device 3 includes two testing rods 31, which are hinged to the folding grooves 2. Fixing structures 4 are fixedly installed on both sides of the top of the base 1. The two fixing structures 4 include L-shaped plates 41, with fastening bolts 42 threaded inside the L-shaped plates 41 and threadedly connected to the base 1. A clamping plate 43 is slidably mounted inside the L-shaped plates 41. A pull plate 44 is fixedly mounted on one side of the outer surface of the clamping plates 43. A limiting cylinder 45 is fixedly mounted on one side of the outer surface of the L-shaped plates 41. Tension springs 46 are fixedly installed inside the limiting cylinders 45, with one end of each tension spring 46 fixedly connected to the inner side of the clamping plate 43.

[0024] Please see Figure 2 and Figure 4Test components 32 are provided on the inner sides of two test rods 31, and a first support platform 33 is provided between the two test components 32. A second support platform 34 is fixedly installed on the top of the two test rods 31, and hook components 6 are fixedly installed on the top of the first support platform 33 and the bottom of the second support platform 34. The two hook components 6 include a fixing platform 61, which is fixedly connected to the first support platform 33 and the second support platform 34 respectively. Hooks 62 are fixedly installed on the top of the two fixing platforms 61, and a side groove 63 is opened on one side of the outer surface of the two hooks 62. Sleeves 64 are slidably installed inside the two hooks 62, and pull rods 65 are fixedly installed on one side of the outer surface of the two sleeves 64. The two pull rods 65 pass through the side grooves 63, and a fixing hole 66 is opened on one side of the outer surface of the hooks 62.

[0025] By fitting both ends of the spring inside the hook 62 and then pulling the lever 65, the sleeve 64 can be moved to slide quickly inside the hook 62 until one end of the sleeve 64 is fixed in the fixing hole 66, thereby quickly fixing both ends of the spring.

[0026] Please see Figure 1 and Figure 5 Two blocking structures 5 are fixedly installed on the top of the base 1. The two blocking structures 5 include rotating rods 51, and baffles 52 are fixedly installed on the outer surfaces of the two rotating rods 51.

[0027] When the two test rods 31 are lying horizontally inside the folding groove 2, the baffle 52 can be rotated to the top of the test rods 31, thereby fixing and blocking them.

[0028] Working principle: When a precision spring tension testing device is in use, in its normal state when not in use, the test rod 31 lies horizontally inside the folding groove 2. By rotating the baffle 52, it is rotated to the top of the test rod 31, thus fixing it in place. When the device needs to be used, the two test rods 31 are flipped out of the folding groove 2. At this time, the two side clamping plates 43 can lock and fix the test rods 31 on both sides. At this time, the test rods 31 are perpendicular to the base 1, and the spring tension test can be performed by fitting the two ends of the spring inside the hook 62. Pull the lever 65 to make the sleeve 64 slide quickly inside the hook 62 until one end of the sleeve 64 is fixed in the fixing hole 66. This can quickly fix both ends of the spring. When the test device 3 needs to be folded again after the tensile test is completed, simply pull the two pull plates 44 to make the clamping plate 43 slide inside the L-shaped plate 41. At this time, the two clamping plates 43 disengage from the test rod 31, and the test rod 31 can be laid down. When the pull plate 44 is released, the tension spring 46 releases the force and pushes the clamping plate 43 back to its original position, thus completing the folding work.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision spring tension testing device, comprising a base (1), characterized in that: The base (1) has folding grooves (2) on both sides inside. A test device (3) is rotatably installed inside the two folding grooves (2). The test device (3) includes two test rods (31). The two test rods (31) are hinged to the folding grooves (2). A fixing structure (4) is fixedly installed on both sides of the top of the base (1). The two fixed structures (4) include L-shaped plates (41), and fastening bolts (42) are threaded inside the two L-shaped plates (41). The two fastening bolts (42) are threadedly connected to the base (1). A clamping plate (43) is slidably installed inside the two L-shaped plates (41). A pull plate (44) is fixedly installed on one side of the outer surface of the two clamping plates (43). A limiting cylinder (45) is fixedly installed on one side of the outer surface of the two L-shaped plates (41). A tension spring (46) is fixedly installed inside the two limiting cylinders (45). One end of the two tension springs (46) is fixedly connected to the inner side of the clamping plate (43).

2. The precision spring tension testing device according to claim 1, characterized in that: Test components (32) are provided on the inner sides of the two test rods (31), and a first support platform (33) is provided between the two test components (32).

3. The precision spring tension testing device according to claim 2, characterized in that: A second support platform (34) is fixedly installed on the top of the two test rods (31), and a hook assembly (6) is fixedly installed on the top of the first support platform (33) and the bottom of the second support platform (34).

4. The precision spring tension testing device according to claim 3, characterized in that: The two hook assemblies (6) include a fixed platform (61), which is fixedly connected to the first support platform (33) and the second support platform (34), respectively.

5. The precision spring tension testing device according to claim 4, characterized in that: Hooks (62) are fixedly installed on the top of the two fixed platforms (61), and side grooves (63) are opened on one side of the outer surface of the two hooks (62).

6. The precision spring tension testing device according to claim 5, characterized in that: The two hooks (62) are slidably mounted with sleeves (64) inside, and a pull rod (65) is fixedly mounted on one side of the outer surface of the two sleeves (64).

7. A precision spring tension testing device according to claim 6, characterized in that: The two pull rods (65) pass through the side groove (63), and a fixing hole (66) is provided on one side of the outer surface of the hook (62).

8. The precision spring tension testing device according to claim 1, characterized in that: Two blocking structures (5) are fixedly installed on the top of the base (1). The two blocking structures (5) include rotating rods (51), and baffles (52) are fixedly installed on the outer surfaces of the two rotating rods (51).

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