Shaft end limiting structure and hinge device

Abstract

Compared with the prior art, the shaft end limiting structure disclosed by the utility model comprises a shaft handle fixing plate and a shaft end limiting plate, the pin shaft with the handle is clamped with the shaft handle fixing plate; the shaft handle fixing plate is provided with a clamping groove matched with one end of the pin shaft with the handle. The shaft handle limiting structure is used for limiting the pin shaft with the handle in the clamping groove of the shaft handle fixing plate; and one end of the pin shaft with the handle is embedded in the clamping groove of the shaft handle fixing plate. Compared with the prior art, the shaft end limiting structure is small in manufacturing difficulty, low in production cost and capable of bearing complex stress under different working conditions. In addition, the utility model further provides the technical scheme of the hinge device, and the hinge device also has the technical effects.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing and processing, and more specifically, particularly to a shaft end limiting structure and an articulated device. Background Art

[0002] The shaft end limit structure is a commonly used mechanical structure, which is a mechanical device used to limit the range of motion of the shaft end to prevent the shaft end from exceeding a predetermined safety range during movement.

[0003] Traditional shaft end limiting structures often use screws or bolts to tighten shaft end retaining rings or shaft end baffles to limit the axial and circumferential displacement of the shaft. The ability of the shaft end retaining ring structure to withstand vibration and impact loads depends on the size of the screws or bolts, the effective preload, and the thickness of the retaining ring. In addition, the inappropriate length of the pin shaft is prone to damage, and the manufacturing precision requirements are high, and the production cost is high. The structure of the shaft end baffle is only suitable for occasions with small axial force and circumferential force. Excessive circumferential force will cause the strength of the screws or bolts to drop significantly, or even be directly sheared off. Therefore, the shaft end limiting structure in the prior art has the problems of high manufacturing difficulty, high production cost, or inability to withstand complex forces under different working conditions.

[0004] Therefore, how to provide a shaft end limit structure that has low manufacturing difficulty, low production cost, and can withstand complex forces under different working conditions has become a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a shaft end limiting structure and also relates to an articulated device, which has low manufacturing difficulty and low production cost and can withstand complex forces under different working conditions.

[0006] The technical solution provided by the utility model is as follows:

[0007] The utility model provides a shaft end limiting structure, comprising: a shaft handle fixing plate; a handle pin connected to the shaft handle fixing plate; the shaft handle fixing plate is provided with a slot matching one end of the handle pin; a shaft handle limiting structure for limiting the handle pin in the slot of the shaft handle fixing plate; one end of the handle pin is embedded in the slot of the shaft handle fixing plate.

[0008] Furthermore, the handle pin comprises: a shaft body; a shaft handle structure provided at one end of the shaft body; and a handle end structure integrally formed with the shaft handle structure. The handle end structure extends outward from the shaft handle structure and is perpendicular to the axis of the shaft body.

[0009] Furthermore, the width of the handle end structure (303) of the handle pin (3) is 0 to 5 mm smaller than the width of the slot, and further, the width of the handle end structure (303) of the handle pin (3) is 1 to 4 mm smaller than the width of the slot.

[0010] Furthermore, the shaft handle limiting structure includes: a shaft handle pressing plate; and a fastener for fixing the shaft handle pressing plate on the shaft handle fixing plate.

[0011] Furthermore, the handle end structure of the handle pin is a V-shaped or U-shaped structure.

[0012] Furthermore, the shaft handle fixing plate includes: a first L-shaped plate and a second L-shaped plate, and the first L-shaped plate and the second L-shaped plate are integrally formed to form a U-shaped groove on the inner side.

[0013] Furthermore, it also includes: a handle end pad provided between the shaft handle pressure plate and the handle pin shaft.

[0014] Furthermore, the fastener is a screw structure or a bolt structure.

[0015] In addition, the utility model also provides a technical solution for an articulated device, including: an axial end limiting structure; a first workpiece provided with a first through hole; a second workpiece provided with a second through hole; the first workpiece and the second workpiece are connected via the axial end limiting structure.

[0016] Furthermore, the first workpiece has a rib plate structure that is relatively parallel to each other, and the first through hole is arranged on the rib plate structure; the second workpiece is located between the rib plate structures that are relatively parallel to each other; the handle pin is passed through the first through hole and the second through hole; and the shaft handle fixing plate is arranged on the rib plate structure.

[0017] Compared with the prior art, the utility model provides a shaft end limiting structure, which includes: a shaft handle fixing plate; a handle pin connected to the shaft handle fixing plate; the shaft handle fixing plate is provided with a slot matching one end of the handle pin; a shaft handle limiting structure for limiting the handle pin in the slot of the shaft handle fixing plate; one end of the handle pin is embedded in the slot of the shaft handle fixing plate. Among them, the handle pin is clamped on the shaft handle fixing plate, the shaft handle fixing plate limits the rotation of the handle pin and bears the alternating circumferential force of the handle pin; the shaft handle limiting structure is arranged above the handle pin to limit the axial displacement of the handle pin and bear the alternating axial force of the handle pin. The above structure limits the rotation and displacement of the handle pin, and respectively bears the alternating circumferential force and alternating axial force of the handle pin, thereby enhancing the force-bearing capacity of the shaft end limiting structure under different working conditions; in the technical scheme involved in the utility model, the length of the handle pin only needs to be longer than the connecting hole through which it passes to meet the requirements, and no precise control is required. The components do not need fine processing, which greatly reduces the manufacturing difficulty and production cost. Compared with the prior art, the technical scheme involved in the utility model has less manufacturing difficulty and lower production cost, and can withstand complex forces under different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 An exploded view of the shaft end limiting structure and the hinge device provided in the embodiment of the utility model;

[0020] Figure 2 A three-dimensional overall view of the shaft end limiting structure and the hinge device provided in the embodiment of the utility model;

[0021] Figure 3 A front view of the shaft end limiting structure and its hinge device provided by the embodiment of the utility model;

[0022] Figure 4 A three-dimensional view of the shaft side of the shaft end limiting structure and the shaft handle pressure plate of the hinge device provided in the embodiment of the utility model. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solutions in the utility model, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the terms "length", "width", "up", "down", "front", "back", "first", "second", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0027] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present utility model can be implemented, so they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present utility model without affecting the effects and purposes that can be achieved by the present utility model.

[0028] Please Figures 1 to 4As shown, an embodiment of the utility model provides a shaft end limiting structure, comprising: a shaft handle fixing plate 4; a handle pin 3 clamped with the shaft handle fixing plate 4; the shaft handle fixing plate 4 is provided with a clamping groove matching with one end of the handle pin 3; a shaft handle limiting structure for limiting the handle pin 3 in the clamping groove of the shaft handle fixing plate 4; one end of the handle pin 3 is embedded in the clamping groove of the shaft handle fixing plate 4.

[0029] Among them, the handle pin 3 is clamped on the shaft handle fixing plate 4, and one end of the handle pin 3 is embedded in the clamping groove of the shaft handle fixing plate 4. The shaft handle fixing plate 4 limits the rotation of the handle pin 3 and bears the alternating circumferential force of the handle pin 3; the shaft handle limiting structure is used to limit the axial displacement of the handle pin 3 and bear the alternating axial force of the handle pin 3; in the technical scheme involved in the present utility model, the length of the handle pin 3 only needs to be longer than the connecting hole passing through the hinge device 5 to meet the requirements, without the need for precise control, and the said components do not need fine processing.

[0030] Specifically, the pin shaft with handle 3 comprises: a shaft body 301; a shaft handle structure 302 provided at one end of the shaft body; and a handle end structure 303 formed integrally with the shaft handle structure.

[0031] Therefore, in the embodiment of the utility model, when the handle pin 3 rotates, since the handle end structure 303 on the handle pin 3 is embedded in the groove of the shaft handle fixing plate 4, the rotation of the handle end structure 303 will be restricted by the groove, thereby restricting the rotation of the handle pin 3, allowing the shaft handle fixing plate 4 to bear the alternating circumferential force of the handle pin 3, preventing the screws or bolts from being broken by the alternating circumferential force.

[0032] More specifically, in the embodiment of the present utility model, the handle end structure 303 of the handle pin 3 is a V-shaped or U-shaped structure.

[0033] Among them, the V-shaped or U-shaped handle end structure 303 on the handle pin 3 is embedded in the groove of the shaft handle fixing plate 4 to limit the rotation of the handle pin 3 and withstand the alternating circumferential force of the handle pin 3. The V-shaped or U-shaped handle end structure 303 has a large contact area with the groove and uniform force distribution. It can better cope with the alternating circumferential force and can cope with the challenges of complex working conditions.

[0034] More specifically, in the embodiment of the present utility model, the handle end structure 303 of the handle pin 3 is an open circle or polygon.

[0035] Specifically, in the embodiment of the utility model, preferably, the shaft handle fixing plate 4 includes: a first L-shaped plate and a second L-shaped plate, and the first L-shaped plate and the second L-shaped plate are integrally formed to form a U-shaped groove on the inner side.

[0036] Specifically, in the embodiment of the utility model, it also includes: a handle end pad 9 provided between the shaft handle pressure plate 2 and the handle pin 3.

[0037] It should be noted that, in the embodiment of the utility model, when the depth of the V-shaped or U-shaped groove of the shaft handle fixing plate 4 is greater than the thickness of the V-shaped or U-shaped structure of the shank end of the handle pin 3, the shaft end pad 9 is required to make up for the difference between the two; when the depth of the V-shaped or U-shaped groove of the shaft handle fixing plate 4 is just equal to the thickness of the V-shaped or U-shaped structure of the shank end of the handle pin 3, the shaft end pad 9 can be omitted. In order to facilitate the effective tightening of the screws or bolts, preferably, the thickness of the shaft end pad 9 is 0mm to 2mm smaller than the required difference. In addition, the shaft end pad 9 on the shaft handle fixing plate 4 can also be replaced by a boss formed by bending the shaft handle fixing plate 4 or a boss formed by machining; the shaft end pad 9 can also be provided at the shank end of the handle pin 3.

[0038] Specifically, in the embodiment of the utility model, the shaft handle fixing plate 4 is provided with two holes symmetrical to the center line of the slot for the fastener 1 to pass through, and the fastener 1 passes through the holes to fix the shaft handle pressing plate 2 and the handle pin 3 on the shaft handle fixing plate 4.

[0039] It should be noted that in the embodiment of the utility model, the fastener 1 passes through the shaft handle pressing plate 2 and then enters the hole provided in the shaft handle fixing plate 4 to achieve a fixing effect. Since the handle pin 3 is provided with a symmetrical handle end structure 303, and the shaft handle fixing plate 4 is provided with a slot corresponding to the handle pin 3, during installation, the handle pin slot 3 is provided with a symmetrical handle end structure 303 and is inserted into the slot provided in the shaft handle fixing plate 4, and then pressed with the shaft handle pressing plate 2, and the fastener 1 is inserted into the hole to achieve a fixing effect.

[0040] Specifically, in the embodiment of the utility model, the width of the handle end structure 303 of the handle pin shaft 3 is 0-5mm smaller than the width of the slot, and further the width of the handle end structure 303 of the handle pin shaft 3 is 1mm-4mm smaller than the width of the slot. In order to facilitate disassembly and processing, the width of the V-shaped or U-shaped symmetrical structure of the handle end of the handle pin shaft 3 is 0.5mm-2mm smaller on each side than the width of the V-shaped or U-shaped slot of the shaft handle fixing plate 4, and 1mm-4mm in total on both sides.

[0041] Specifically, the shaft handle limiting structure includes: a shaft handle pressing plate 2; and a fastener 1 for fixing the shaft handle pressing plate 2 on the shaft handle fixing plate.

[0042] More specifically, the fastener 1 is a screw structure or a bolt structure.

[0043] Among them, the threaded holes required for screws or bolts are processed on the 4 small parts of the shaft handle fixing plate, without the need for complex machine tool processing, and even drilling and tapping can be completed at the installation site.

[0044] The utility model also provides a technical solution for an articulated device, including: an axial end limiting structure 8; a first workpiece 6 provided with a first through hole 10; a second workpiece 7 provided with a second through hole 11; the first workpiece 6 and the second workpiece 7 are connected via the axial end limiting structure 8.

[0045] Specifically, in an embodiment of the utility model, the first workpiece 6 has a rib plate structure 601 that is relatively parallel, and the first through hole 10 is arranged on the rib plate structure 601; the second workpiece 7 is located between the rib plate structures 601 that are relatively parallel; the handle pin 3 is passed through the first through hole 10 and the second through hole 11; the shaft handle fixing plate 4 is arranged on the rib plate structure 601.

[0046] The first through hole 10 and the second through hole 11 form a connecting hole, and the length of the handle pin 3 only needs to be longer than the connecting hole it passes through to meet the requirement, and precise control is not required.

[0047] To be more specific, in the embodiment of the utility model, the shank end of the handle pin 3 in the shaft end limiting structure 8 is a V-shaped or U-shaped structure, which can be inserted into the V-shaped or U-shaped groove corresponding to the shank fixing plate 4; the shank fixing plate 4 is fixed to the first workpiece 6, and its fixing position is related to the size of the shank end of the handle pin 3; after the shank pin 3 passes through the first through hole 10 and the second through hole 11 of the first workpiece 6 and the second workpiece 7, the shank end of the handle pin 3 is fastened by the shank pressing plate 2 through screws or bolts and washers in two threaded holes on the shank fixing plate 4 that are symmetrical to the center line of its V-shaped or U-shaped groove. The V-shaped or U-shaped groove corresponding to the shaft handle fixing plate 4 is used to limit the rotation of the handle pin shaft 3 and withstand the alternating circumferential force of the handle pin shaft 3; the screw or bolt and the shaft handle pressure plate 2 work together to limit the axial displacement of the handle pin shaft 3 and withstand the alternating axial force of the handle pin shaft 3; in the embodiment of the utility model, the pre-tightening force of the screw or bolt only needs to overcome the axial force of the handle pin shaft 3, so under the same force conditions, the strength requirement of the screw or bolt is not high, and it can reduce one or more specifications compared with the traditional shaft end retaining ring method; The two threaded holes on the shaft handle fixing plate 4 that are symmetrical with the midline of the V-shaped or U-shaped groove do not need to be processed by complicated machine tools, and the drilling and tapping operations can even be solved on the installation site; the V-shaped or U-shaped groove on the shaft handle fixing plate 4 and the shaft handle of the handle pin shaft 3 can be directly cut out without fine processing; the length of the handle pin shaft 3 only needs to be longer than the connecting hole through which it passes, and no precise control is required; the structure has low machining process requirements, thereby reducing production costs, and the simple structure and convenient disassembly and assembly reduce the manufacturing difficulty.

[0048] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A shaft end limiting structure, characterized in that: include: Axle handle fixing plate (4); A pin shaft with a handle (3) clamped with the shaft handle fixing plate (4); A slot provided on the shaft handle fixing plate (4) and cooperating with one end of the shaft pin (3); A shaft handle limiting structure for limiting the shaft pin with a handle (3) in the slot of the shaft handle fixing plate (4); One end of the handle pin (3) is embedded in a slot of the shaft handle fixing plate (4).

2. The shaft end limiting structure according to claim 1, characterized in that: The pin shaft with handle (3) comprises: Axis body (301); A shaft handle structure (302) provided at one end of the shaft body; A handle end structure (303) is formed by extending outward from the shaft handle structure (302) and perpendicularly extending outwardly from the axis of the shaft body (301); the handle end structure (303) and the shaft handle structure (302) are an integrally formed structure.

3. The shaft end limiting structure according to claim 2, characterized in that: The width of the handle end structure (303) of the handle pin shaft (3) is 1 mm to 4 mm smaller than the width of the slot.

4. The shaft end limiting structure according to claim 2, characterized in that: The shaft handle limiting structure comprises: A shaft handle pressing plate (2), the shaft handle pressing plate (2) being used to tightly press the handle end structure (303) to be positioned in the clamping groove; A fastener (1) is used for detachably fixing the shaft handle pressing plate (2) to the shaft handle fixing plate (4).

5. The shaft end limiting structure according to claim 2, characterized in that: The handle end structure (303) of the handle pin shaft (3) is a V-shaped or U-shaped structure.

6. The shaft end limiting structure according to claim 1, characterized in that: The shaft handle fixing plate (4) comprises: a first L-shaped plate and a second L-shaped plate, wherein the first L-shaped plate and the second L-shaped plate are integrally formed to form a U-shaped slot on the inner side.

7. The shaft end limiting structure according to claim 4, characterized in that: Also includes: A shank end pad (9) is provided between the shank pressure plate (2) and the shank pin (3).

8. The shaft end limiting structure according to claim 4, characterized in that: The fastener (1) is specifically a screw structure or a bolt structure.

9. A hinge device, characterized in that: include: The shaft end limiting structure (8) according to any one of claims 1 to 8; A first workpiece (6) provided with a first through hole (10); A second workpiece (7) provided with a second through hole (11); The first workpiece (6) and the second workpiece (7) are connected via the shaft end limiting structure (8).

10. A hinge device according to claim 9, characterized in that: The first workpiece (6) has a rib plate structure (601) that is arranged relatively in parallel, and the first through hole (10) is arranged on the rib plate structure (601); the second workpiece (7) is located between the rib plate structures (601) that are arranged relatively in parallel; the handle pin (3) is passed through the first through hole (10) and the second through hole (11); and the shaft handle fixing plate (4) is arranged on the rib plate structure (601).

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