Rotating block, rotating positioning elastic piece and end face elastic piece type clamping rail type rotating support

Abstract

The utility model relates to a rotary block, a rotary positioning elastic piece and an end face elastic piece type clamping rail type rotary support, which comprise a sighting telescope mounting seat and a rotary sleeve fixedly connected with one side of the sighting telescope mounting seat, and a first positioning concave surface and a second positioning concave surface which are distributed along the circumferential direction and protrude towards a rotary shaft from the inner wall of a cavity are arranged in the cavity at the end part of the front end of the rotary sleeve; the first positioning concave surface and the second positioning concave surface are spiral surfaces which are coaxial, have the same rotating direction and extend inwards in the axial direction; the axial innermost end of the first positioning concave surface is intersected with the axial outermost end of the second positioning concave surface to form a first inner concave surface which is inwards concave along the axial direction; and the axial outermost end of the first positioning concave surface is intersected with the axial innermost end of the second positioning concave surface to form a second concave surface which is concave inwards along the axial direction. The utility model has the advantages of low processing difficulty, easiness in guaranteeing the processing size, good manufacturability, easiness in meeting the assembly process requirement, simple structure and convenience in assembly and maintenance.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of gun sighting device technology, specifically relates to a rotary block, rotary positioning bullet and end face bullet formula card rail formula rotary support. BACKGROUND

[0002] The utility model discloses a kind of Figure 1 As shown in the figure, the card rail formula rotary support, including realizing the rotary positioning of rotating assembly (also called rotary block) 6 to front mounting bracket 2 (fixed in the front end of card rail base 1) and tubular positioning block 3 cooperation with this front mounting bracket 2, the outer side wall of this tubular positioning block 3 is provided with Figure 2 、 3 As shown in the figure, the sliding slot 4 and sliding pin 5 cooperation with this sliding slot 4, with the help of sliding pin 5 in sliding slot 4 and the gap on the annular stop ring on the inner side wall of front mounting bracket 2 cooperation (i.e. sliding pin 5 inserts into gap), prevent tubular positioning block 3 from rotating, it is found in practice that the positioning size of sliding slot 4 and sliding pin 5 is small, and the processing difficulty is big, it is difficult to guarantee that size reaches design requirement, and processing technology is poor, and assembly is not easy. Figure 3 As can be seen, the assembly for positioning rotary block 6 also includes rotating shaft 7, helical spring 8, two clamping claws 9, 10 fixed at the end of tubular positioning block 3 and the limiting structure matched with the corresponding end of rotary block 6, such as the gap between the first arc-shaped stop edge and the second arc-shaped stop edge, and the number of parts and matched structures is large, and the assembly is complicated. Utility model content

[0003] The utility model discloses the purpose to solve the problems of existing technology, such as big processing difficulty, difficult to guarantee that size reaches design requirement, poor processing technology and not easy assembly.

[0004] To achieve the above object, the utility model provides a kind of rotary block, including sighting device mounting seat and the rotary sleeve fixedly connected with its one side, first positioning concave surface and second positioning concave surface are set in the front end end chamber of rotary sleeve and project from cavity inner wall towards pivot;

[0005] The first positioning concave surface and the second positioning concave surface are coaxial, same direction and extend along the axial direction inwardly;

[0006] The axial most inner end of the first positioning concave surface intersects with the axial most outer end of the second positioning concave surface, forming a first inner concave surface recessed along the axial direction inwardly;

[0007] The axial most outer end of the first positioning concave surface intersects with the axial most inner end of the second positioning concave surface, forming a second inner concave surface recessed along the axial direction inwardly.

[0008] A rotating positioning elastic sheet comprises a ring body, characterized in that it further comprises a first arc-shaped elastic sheet and a second arc-shaped elastic sheet.

[0009] The outer ends of the first arc-shaped elastic sheet and the second arc-shaped elastic sheet are respectively connected with opposite inner sides of the ring body.

[0010] The inner ends of the first arc-shaped elastic sheet and the second arc-shaped elastic sheet are both along the same side of the ring body, and are spirally arranged in the same direction and axially rotate away from the cross section of the ring body.

[0011] The outer end of the first arc-shaped elastic sheet and the inner end of the second arc-shaped elastic sheet are sequentially arranged in axial high-low staggered mode, and the axial projection of the inner end of the second arc-shaped elastic sheet is located behind the spiral direction of the outer end of the first arc-shaped elastic sheet.

[0012] The inner end of the first arc-shaped elastic sheet and the outer end of the second arc-shaped elastic sheet are sequentially arranged in axial high-low staggered mode, and the axial projection of the inner end of the first arc-shaped elastic sheet is located behind the spiral direction of the outer end of the second arc-shaped elastic sheet.

[0013] The outer side of the ring body is provided with a first arc-shaped groove and a second arc-shaped groove.

[0014] The first arc-shaped groove and the second arc-shaped groove are respectively arranged corresponding to the outer end of the first arc-shaped elastic sheet and the outer end of the second arc-shaped elastic sheet.

[0015] A front-end elastic sheet type rail clamping type rotating support comprises a front mounting support fixed at the front end of a rail clamping base, the rotating block and the rotating positioning elastic sheet.

[0016] The rotating block is located at the rear end of the front mounting support.

[0017] The rotating positioning elastic sheet is assembled in the front mounting support.

[0018] The first arc-shaped elastic sheet and the second arc-shaped elastic sheet are respectively assembled corresponding to the first positioning concave surface and the second positioning concave surface, and are pressed by the fixing ring at the front end of the rotating block.

[0019] The rotating shaft sequentially passes through the fixing ring, the rotating positioning elastic sheet, the rotating block and the rear mounting support, and is fixedly connected with the locking nut at the rear end of the rear mounting support.

[0020] The rear end of the cavity of the front mounting support is provided with limiting bosses matched with the first arc-shaped groove and the second arc-shaped groove.

[0021] The utility model discloses a rotating positioning elastic sheet, which has the advantages of small processing difficulty, easy guarantee of processing size, good processability, easy meeting of assembly process requirements, simple structure and convenient assembly and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of an existing card rail type rotary support.

[0023] Figure 2 is a schematic diagram of an existing tubular positioning block Figure 1 .

[0024] Figure 3 is a schematic diagram of an existing tubular positioning block Figure 2 .

[0025] Figure 4 is a schematic diagram of a rotary block provided by an embodiment.

[0026] Figure 5 is a schematic diagram of a rotary positioning spring provided by an embodiment.

[0027] Figure 6 is a perspective view of a rotary positioning spring.

[0028] Figure 7 is a side view of a rotary positioning spring.

[0029] Figure 8 is an exploded view of an end face spring type card rail type rotary support provided by an embodiment.

[0030] Figure 9 is an axial side sectional view of a rotary block and a rotary positioning spring after assembly provided by an embodiment.

[0031] Figure 10 is a schematic diagram of a rotary block in a horizontal position provided by an embodiment.

[0032] Figure 11 is a schematic diagram of a rotary block in a vertical position provided by an embodiment.

[0033] BRIEF DESCRIPTION OF DRAWINGS

[0034] 1, card rail base; 2, front mounting support; 3, tubular positioning block; 4, sliding slot; 5, sliding pin; 6, rotary block; 7, rotary shaft; 8, helical spring; 9, 10, clamping jaw; 11, sighting device mounting seat; 11, rotary sleeve; 13, first positioning concave surface; 14, second positioning concave surface; 15, annular body; 16, first arc-shaped spring; 17, second arc-shaped spring; 18, first arc-shaped groove; 19, second arc-shaped groove; 20, rotary positioning spring; 21, fixing ring; 22, rear mounting support; 23, locking nut; 24, limiting boss. DETAILED DESCRIPTION

[0035] To further illustrate the technical means and effects of this utility model in achieving its intended purpose, the specific implementation methods, structural features and effects of this utility model are described in detail below with reference to the accompanying drawings and embodiments.

[0036] 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 scope of protection of the present utility model.

[0037] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "aligned", "overlapping", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0039] Figure 4 The diagram shows a rotating block, including a sight mounting base 11 and a rotating sleeve 12 fixedly connected to one side thereto. The key feature is that the front end cavity of the rotating sleeve 12 in this embodiment has a first positioning concave surface 13 and a second positioning concave surface 14 distributed circumferentially and protruding from the inner wall of the cavity towards the rotation axis. The first positioning concave surface 13 and the second positioning concave surface 14 are coaxial, rotate in the same direction (both counterclockwise or clockwise), and extend axially inward as spiral surfaces. The innermost axial end of the first positioning concave surface 13 intersects with the outermost axial end of the second positioning concave surface 14, forming a first concave surface axially concave inward; the outermost axial end of the first positioning concave surface 13 intersects with the innermost axial end of the second positioning concave surface 14, forming a second concave surface axially concave inward. Thus, two concave arc-shaped surfaces are formed in the front end cavity of the rotating sleeve 12, extending circumferentially inward in a spiral shape, and connected end-to-end. Figure 4As shown, if the end located outside the front end of the rotating sleeve 12 is the head, then the end extending into the cavity is the tail. The junction of the head and tail forms a drop and has a clear limiting concave surface. The first positioning concave surface 13 and the second positioning concave surface 14 are the same size and are almost in the same circumference relative position. Thus, by moving along the first positioning concave surface 13 and the second positioning concave surface 14, the horizontal position and the vertical position can be switched, that is, the position can be switched within a 90° range.

[0040] and Figure 5 The image shown is related to Figure 4 The shown limiting structure matches a rotating positioning spring, including an annular body 15, and a first arc-shaped spring 16 and a second arc-shaped spring 17; the outer ends of the first arc-shaped spring 16 and the second arc-shaped spring 17 are respectively connected to an inner side opposite to the annular body 15, that is, the first arc-shaped spring 16 and the second arc-shaped spring 17 are both located within the annular body 17. Furthermore, the inner ends of the first arc-shaped spring 16 and the second arc-shaped spring 17 are both spirally arranged in the same direction (both counterclockwise or clockwise) along the same side of the annular body 15, rotating axially away from the cross-section of the annular body 15, such as... Figure 6 and Figure 7 As shown.

[0041] The outer end of the first arc-shaped spring piece 16 and the inner end of the second arc-shaped spring piece 17 are staggered axially and arranged sequentially, with the axial projection of the inner end of the second arc-shaped spring piece 17 located behind the spiral direction of the outer end of the first arc-shaped spring piece 16. Similarly, the inner end of the first arc-shaped spring piece 16 and the outer end of the second arc-shaped spring piece 17 are staggered axially and arranged sequentially, with the axial projection of the inner end of the first arc-shaped spring piece 16 located behind the spiral direction of the outer end of the second arc-shaped spring piece 17. This forms... Figure 5 , Figure 6 The arc-shaped spring sheet shown extends spirally from the inner side of the annular body along the axial direction, away from the cross-section where the annular body is located. The outer end of the first arc-shaped spring sheet 16 intersects with the second arc-shaped spring sheet 17, forming an embracing shape. Figure 5 As can be seen, the outer side of the annular body 15 is provided with a first arc-shaped groove 18 and a second arc-shaped groove 19; the first arc-shaped groove 18 and the second arc-shaped groove 19 are respectively provided at the outer end of the first arc-shaped spring piece 16 and the outer end of the second arc-shaped spring piece 17.

[0042] This setting, and Figure 4 The first positioning concave surface 13 and the second positioning concave surface 14 shown correspond and match. Thus, the positioning concave surface provided in this embodiment... Figure 8The illustrated end-face spring-type rail-mounted rotating bracket provides a technical basis. Specifically, the rail-mounted rotating bracket includes a front mounting bracket 2 fixed to the front end of the rail base 1, and a rotating block 6 located at the rear end of the front mounting bracket 2; a rotating positioning spring 20 is assembled inside the front mounting bracket 2; a first arc-shaped spring 16 and a second arc-shaped spring 17 are respectively assembled to the first positioning concave surface 13 and the second positioning concave surface 14 (e.g., ...). Figure 9 As shown), the rotating shaft 7 is pressed against the front end of the rotating block 6 by the retaining ring 21; the rotating shaft 7 passes sequentially through the retaining ring 21, the rotating positioning spring 20, the rotating block 6, and the rear mounting bracket 22, and is then fixedly connected to the locking nut 23 at the rear end of the rear mounting bracket 22. Furthermore, combined with... Figure 10 As can be seen from 11, the rear end of the chamber of the front mounting bracket 2 is provided with limiting bosses 24 that respectively match the first arc-shaped groove 18 and the second arc-shaped groove 19. Thus, when the rotating block 6 is rotated, the matching and limiting of the first arc-shaped groove 18 and the second arc-shaped groove 19 with the limiting bosses 24 prevents the rotating positioning spring 20 from rotating. Under external force, the first arc-shaped spring 16 and the second arc-shaped spring 17 elastically deform along the Z-axis, causing the rotating positioning spring 20 to move along the Z-axis. Furthermore, during the rotation of the rotating block 6, the first arc-shaped spring 16 and the second arc-shaped spring 17 remain in close contact with the first positioning concave surface 13 and the second positioning concave surface 14, ensuring that the rotating block 6 is in close contact with the first positioning concave surface 13 and the second positioning concave surface 14. Figure 10 The horizontal position shown quickly completes a 90° rotation, becoming Figure 11 The 90° position shown allows for switching between the horizontal and vertical positions of the sight that is fixedly connected to it.

[0043] As can be seen, compared with the prior art, the end-face spring-type rail-type rotating bracket designed in the above embodiment has fewer parts, is easier to assemble and maintain, has less processing difficulty, is easier to ensure processing dimensions, has good manufacturability, is easier to meet assembly process requirements, and has a simple structure.

Claims

1. A rotating block, comprising a sight mounting base (11) and a rotating sleeve (12) fixedly connected to one side thereof, characterized in that: The front end cavity of the rotating sleeve (12) is provided with a first positioning concave surface (13) and a second positioning concave surface (14) that are distributed circumferentially and protrude from the inner wall of the cavity toward the rotating shaft; The first positioning concave surface (13) and the second positioning concave surface (14) are coaxial, rotate in the same direction and extend inward along the axial direction. The innermost end of the first positioning concave surface (13) intersects with the outermost end of the second positioning concave surface (14) to form a first concave surface that is concave inward along the axial direction. The outermost axial end of the first positioning concave surface (13) intersects with the innermost axial end of the second positioning concave surface (14), forming a second concave surface that is concave inward along the axial direction.

2. A rotary positioning spring, comprising an annular body (15), characterized in that, It also includes a first arc-shaped spring clip (16) and a second arc-shaped spring clip (17); The outer ends of the first arc-shaped spring (16) and the second arc-shaped spring (17) are respectively connected to the opposite inner side of the ring body (15); The inner ends of the first arc-shaped spring (16) and the second arc-shaped spring (17) are both along the same side of the annular body (15), forming a spiral in the same direction and rotating axially away from the cross section of the annular body (15); The outer end of the first arc-shaped spring (16) and the inner end of the second arc-shaped spring (17) are offset from each other along the axial direction and arranged sequentially, and the axial projection of the inner end of the second arc-shaped spring (17) is located behind the spiral direction of the outer end of the first arc-shaped spring (16). The inner end of the first arc-shaped spring (16) and the outer end of the second arc-shaped spring (17) are staggered along the axial direction and arranged in sequence, and the axial projection of the inner end of the first arc-shaped spring (16) is located behind the spiral direction of the outer end of the second arc-shaped spring (17); the outer side of the annular body (15) is provided with a first arc-shaped groove (18) and a second arc-shaped groove (19); The first arc-shaped groove (18) and the second arc-shaped groove (19) are respectively provided at the outer ends of the first arc-shaped spring piece (16) and the second arc-shaped spring piece (17).

3. A spring-loaded, rail-mounted rotating bracket, comprising a front mounting bracket (2) fixed to the front end of a rail base (1), characterized in that: It also includes the rotating block (6) as described in claim 1 and the rotating positioning spring (20) as described in claim 2; The rotating block (6) is located at the rear end of the front mounting bracket (2); The rotating positioning spring (20) is assembled inside the front mounting bracket (2); The first arc-shaped spring piece (16) and the second arc-shaped spring piece (17) are respectively assembled to the first positioning concave surface (13) and the second positioning concave surface (14), and are pressed by the fixing ring (21) at the front end of the rotating block (6); After the rotating shaft (7) passes through the fixed ring (21), the rotating positioning spring (20), the rotating block (6) and the rear mounting bracket (22) in sequence, it is fixedly connected to the locking nut (23) at the rear end of the rear mounting bracket (22); The rear end of the chamber of the front mounting bracket (2) is provided with a limiting boss (24) that matches the first arc-shaped groove (18) and the second arc-shaped groove (19) respectively.

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