A mechanical spring arm assembly

Abstract

The utility model discloses a kind of mechanical spring support arm assemblies, including upper link, spring assembly, lower link, support arm front end and support arm base, the both ends of lower link are respectively swing hinged with support arm front end and support arm base, the support arm base is provided with clamping groove, one end of the spring assembly is slidably connected in clamping groove, the other end of the spring assembly is rotatably connected with support arm front end by shaft pin, the utility model is by the spring adjusting shaft of spring assembly clamped in the clamping groove of support arm base half-opening structure, the clamping groove of hanging half-opening structure simplifies the installation mode of spring assembly, saves installation space.

Description

Technical Field

[0001] This utility model relates to the field of automated machinery, and in particular to a mechanical spring support arm assembly. Background Technology

[0002] Currently, the spring assemblies of mechanical spring arms on the market are installed with pin holes at both ends. Installation requires a press (tooling) to press the pin into the hole. Installation, maintenance and replacement of spring assemblies require special equipment or tooling for disassembly. Utility Model Content

[0003] The main objective of this invention is to provide a mechanical spring support arm assembly.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A mechanical spring support arm assembly includes an upper connector, a spring assembly, a lower connector, a support arm front end, and a support arm base. The two ends of the lower connector are respectively pivotally hinged to the support arm front end and the support arm base. The support arm base has a snap-fit ​​groove. One end of the spring assembly is slidably snapped into the snap-fit ​​groove, and the other end of the spring assembly is rotatably connected to the support arm front end via a pin. The two ends of the upper connector are respectively pivotally hinged to the support arm front end and the support arm base.

[0006] Furthermore, the spring assembly includes a front spring fixing head, a rear spring fixing head, a spring body, a spring adjusting shaft, and an adjusting bolt. The front spring fixing head and the rear spring fixing head are fixedly connected to both ends of the spring body, respectively. The rear spring fixing head is fixedly connected to one end of the adjusting bolt. The adjusting bolt is provided with a position-adjustable spring adjusting shaft. The front spring fixing head is provided with a rotating connection hole, which is rotatably connected to a shaft pin. The spring adjusting shaft is slidably engaged in the engagement groove.

[0007] Furthermore, the adjusting bolt is a fully threaded screw, and a threaded hole is fixedly opened at the center of the outer ring surface of the spring adjusting shaft. The spring adjusting shaft is connected to the external thread of the adjusting bolt through the threaded hole.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] This utility model uses a spring adjustment shaft of the spring assembly to be snapped into a snap-fit ​​groove in the semi-open structure of the support arm base. The snap-fit ​​groove in the semi-open structure simplifies the installation of the spring assembly and saves installation space; no special equipment (tooling) is required, which shortens the installation time and reduces the difficulty of replacement; the installation is simple and it has a wide range of applications. Attached Figure Description

[0010] Figure 1 This is a perspective view of the present utility model;

[0011] Figure 2 This is a three-dimensional schematic diagram of the present invention with the upper connecting component removed;

[0012] Figure 3 This is a three-dimensional schematic diagram of the spring assembly of this utility model;

[0013] Figure 4 This is an exploded schematic diagram of the spring assembly of this utility model;

[0014] Figure 5 This is a partial three-dimensional enlarged view of the support arm base of this utility model.

[0015] Figure Labels

[0016] 1. Upper connector; 2. Spring assembly; 3. Lower connector; 4. Front end of support arm; 5. Support arm base; 6. Snap-fit ​​groove; 7. Shaft pin; 8. Front spring fixing head; 9. Rear spring fixing head; 10. Spring body; 11. Spring adjusting shaft; 12. Adjusting bolt; 13. Threaded hole. Detailed Implementation

[0017] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0018] See Figure 1-5 As shown, a mechanical spring support arm assembly includes an upper connecting member 1, a spring assembly 2, a lower connecting member 3, a support arm front end 4, and a support arm base 5. The two ends of the lower connecting member 3 are respectively pivotally hinged to the support arm front end 4 and the support arm base 5. The support arm front end 4 and the lower connecting member 3 are rotatably connected by two stepped screws, and the lower connecting member 3 and the support arm base 5 are rotatably connected by two stepped screws. That is, threaded connection holes are opened on both sides of both ends of the support arm front end 4, and rotatable connection holes are opened on both sides of both ends of the lower connecting member 3, and the hinge is achieved by stepped screws.

[0019] The support arm base 5 is provided with a snap-fit ​​groove 6. One end of the spring assembly 2 is slidably and rotatably snapped into the snap-fit ​​groove 6. The other end of the spring assembly 2 is rotatably connected to the front end 4 of the support arm through a shaft pin 7. The two ends of the upper connecting piece 1 are respectively rotatably hinged to the front end 4 of the support arm and the support arm base 5.

[0020] The spring assembly 2 includes a front spring fixing head 8, a rear spring fixing head 9, a spring body 10, a spring adjusting shaft 11, and an adjusting bolt 12. The front spring fixing head 8 and the rear spring fixing head 9 are fixedly connected to both ends of the spring body 10, respectively. The rear spring fixing head 9 is fixedly connected to one end of the adjusting bolt 12. The adjusting bolt 12 is provided with a position-adjustable spring adjusting shaft 11. The front spring fixing head 8 is provided with a rotating connection hole, which is rotatably connected to the shaft pin 7. The spring adjusting shaft 11 is slidably engaged in the engaging groove 6.

[0021] The adjusting bolt 12 is a fully threaded screw, and a threaded hole 13 is fixedly opened at the center of the outer ring surface of the spring adjusting shaft 11. The spring adjusting shaft 11 is connected to the external thread of the adjusting bolt 12 through the threaded hole 13.

[0022] A nut can be attached to the adjusting bolt to lock the spring adjusting shaft.

[0023] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A mechanical spring support arm assembly, comprising an upper connecting member (1), a spring assembly (2), a lower connecting member (3), a support arm front end (4), and a support arm base (5), wherein the two ends of the lower connecting member (3) are respectively pivotally hinged to the support arm front end (4) and the support arm base (5), characterized in that: The support arm base (5) is provided with a snap-fit ​​groove (6). One end of the spring assembly (2) is slidably snapped into the snap-fit ​​groove (6). The other end of the spring assembly (2) is rotatably connected to the front end of the support arm (4) through a shaft pin (7). The two ends of the upper connecting piece (1) are rotatably hinged to the front end of the support arm (4) and the support arm base (5) respectively. The spring assembly (2) includes a front spring fixing head (8), a rear spring fixing head (9), a spring body (10), a spring adjusting shaft (11), and an adjusting bolt (12). The front spring fixing head (8) and the rear spring fixing head (9) are fixedly connected to both ends of the spring body (10). The rear spring fixing head (9) is fixedly connected to one end of the adjusting bolt (12). The adjusting bolt (12) is provided with a position-adjustable spring adjusting shaft (11). The front spring fixing head (8) is provided with a rotating connection hole. The rotating connection hole is rotatably connected to the shaft pin (7). The spring adjusting shaft (11) is slidably engaged in the engaging groove (6). The adjusting bolt (12) is a fully threaded screw. A threaded hole (13) is fixedly opened at the center of the outer ring surface of the spring adjusting shaft (11). The spring adjusting shaft (11) is connected to the external thread of the adjusting bolt (12) through the threaded hole (13).

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