TWM654055U - Split-type latching device with circumferential latching effect for valve core - Google Patents

Abstract

The invention provides a split-type valve core clamping device with a circumferential clamping effect. The split-type clamping device is arranged radially between the valve housing circular frame and the valve stem driving seat. The valve stem driving seat is rotatably arranged in the circular frame. The valve stem driving seat is formed with a valve stem through-hole and a rotating seat. The split-type clamping device includes: a plurality of elastic clamping parts, which are arranged around the circumference of the rotating seat of the valve stem driving seat. The movable part includes an arched elastic arm and a radial flange; a plurality of embedded grooves are formed on the circular frame body at positions corresponding to the elastic clamping parts, each of which includes a forward and reverse abutting edge and an end limiting edge; a plurality of embedded clamping seats are embedded and positioned in each of the embedded grooves, each of which includes a block seat and a convex part, the block seat includes a forward and reverse side and abutting end, and the convex part is located on the rotation path of the elastic clamping part.

Description

Valve core split type locking device with circumferential locking effect

This invention relates to a local structure of a valve core, and in particular to an innovative structural form of a valve core split-type locking device with a circumferential locking effect.

Faucet valve cores are generally divided into two types in terms of their actuation modes: fixed-axis rotary and swing-type. This invention mainly aims to improve and break through the fixed-axis rotary structure.

The known fixed-axis rotary valve core structure design usually has the function of segmented positioning of the brake shaft rotation. The interlocking positioning part is usually formed directly on a linkage plate driven by the bottom end of the brake shaft and its corresponding valve housing structure in a slightly protruding shape, and then the elastic toughness of the plastic is used to produce the interlocking positioning effect. However, this known structure is still found to have some problems in actual use experience. For example: because of its interlocking The card positioning portion is directly formed in a protruding shape on the linkage plate and its corresponding valve housing structure, so the embedded card positioning portion is easily quickly worn and damaged due to repeated relative movements, resulting in a short service life of the embedded card positioning portion and a lack of durability and practicality. Therefore, the directly formed one-piece embedded card positioning portion cannot partially replace components or needs to form the valve housing with two materials, which obviously will cause a problem of significantly increased costs.

The main purpose of this invention is to provide a split valve core locking device with a circumferential locking effect. The technical problem it aims to solve is to make an innovative breakthrough in how to develop a new valve core locking structure that is more ideal and practical.

Based on the above-mentioned purpose, the present invention provides a valve core split-type clamping device with a circumferential clamping effect, wherein the split-type clamping device is arranged between a circular frame formed at the upper end of a valve shell provided on a valve core and a valve rod driven seat in a radial configuration, wherein the circular frame has a frame opening, the valve rod driven seat is rotatably arranged in the circular frame, and the valve rod driven seat is formed with a valve rod through-opening and a rotating seat portion; the split-type clamping device includes: a plurality of elastic clamping portions, which are arranged at intervals around the rotating seat portion of the valve rod driven seat, each elastic clamping portion includes an arched elastic arm and a spring formed on the arched elastic arm. A radial flange on the outer side of the elastic arm; a plurality of embedding grooves formed on the circular frame structure at positions corresponding to the elastic clamping parts, each embedding groove comprising a forward abutting edge, a reverse abutting edge and an end limiting edge; a plurality of embedded blocking seats embedded and positioned in each embedding groove, each embedded blocking seat comprising a block seat and a convex portion formed on the block seat, the block seat comprising a forward side, a reverse side and abutting end, respectively used to abut against the forward abutting edge, the reverse abutting edge and the end limiting edge of the embedding groove; the convex portion is located between the forward side and the reverse side, and the convex portion must be located on the rotation path of the elastic clamping part.

With this innovative structural form and technical features, compared with previous technologies, the embedded card block seat that achieves the locking function is a combined detachable component, so it can be quickly replaced to maintain its normal function; it can also be matched with different weather-resistant materials according to different usage environments, achieving advantages and practical progress in use and manufacturing.

Another purpose of the invention is to form a longitudinal discontinuity portion between the longitudinal side of the block and the longitudinal abutment side of the embedding groove, and to form a reverse discontinuity portion between the reverse side of the block and the reverse abutment side of the embedding groove; so that the radial flange of the elastic clamping portion normally contacts the block of the embedded clamping seat, and when the convex portion of the block and the radial flange cross over and clamp each other, a first clamping feel is generated, and when the radial flange crosses the longitudinal discontinuity portion or the reverse discontinuity portion, another technical feature of a differentiated second clamping feel is generated, so as to achieve the advantage of enhancing the clamping function and practical progress.

Please refer to Figures 1, 2 and 3, which are preferred embodiments of the valve core split-type clamping device with circumferential clamping effect of the present invention. However, these embodiments are for illustrative purposes only and are not limited to this structure in patent applications.

The split-type clamping device is arranged between a circular frame 11 formed at the upper end of a valve housing 10 provided with a valve core and a valve rod driving seat 20 in a radial configuration, wherein the circular frame 11 has a frame opening 12, and the valve rod driving seat 20 is rotatably arranged in the circular frame 11, and the valve rod driving seat 20 is formed with a valve rod through-opening 21 and a rotating The split-type clamping device includes: a plurality of elastic clamping parts 30, which are arranged around the rotating seat part 22 of the valve rod driving seat 20 at intervals, each of which includes an arched elastic arm 31 and a radial flange 32 formed on the outer side of the arched elastic arm 31; a plurality of embedded grooves 40, which are formed on the circular frame body 11 and are connected to the circular frame body 11. At the corresponding parts of the elastic clamping parts 30, each of the embedded grooves 40 includes a forward abutting edge 41, a reverse abutting edge 42 and an end limit edge 43; a plurality of embedded clamping seats 50 are embedded and positioned in each of the embedded grooves 40, each of the embedded clamping seats 50 includes a block seat 51 and a convex portion 52 formed on the block seat 51, the block seat 51 includes a forward side 53, a reverse side 54 and a supporting end 55, respectively used to abut against the forward abutting edge 41, the reverse abutting edge 42 and the end limit edge 43 of the embedded groove 40; the convex portion 52 is located between the forward side 53 and the reverse side 54, and the convex portion 52 must be located on the rotation path of the elastic clamping part 30.

Based on the above-mentioned structural assembly form and technical features, the use and operation of the present invention are described as follows: As shown in Figures 3 to 5, the elastic clamping portion 30 can change its angle as the rotating seat portion 22 of the valve rod drives the seat 20. When the radial flange 32 of the elastic clamping portion 30 passes over the protrusion 52 of the embedded clamping seat 50 as shown in Figure 4, the user can feel an obvious clamping over-blocking (or over-embedded) feeling during operation, thereby providing a prompt to the user (for example, the flow channel has switched to another flow direction). Since the embedded card block seat 50 of the invention that achieves the card function is a combined detachable component, it can be quickly replaced to maintain its normal function. From another perspective, it can be matched with different weather-resistant materials according to different usage environments, thereby achieving advantages in use and manufacturing and practical progress.

As shown in FIG. 2 , in this example, each of the embedded grooves 40 is further formed with a guide port 44 at the end far away from the end limiting edge 43. The guide port 44 is located at the lower end of the circular frame 11 so that the embedded type card holder 50 is inserted into the embedded groove 40 through the guide port 44; and an expanded diameter limiting ring 23 is formed at the lower end of the rotating seat portion 22 of the valve rod driving seat 20 to cover the lower part of the guide port 44 and limit the embedded type card holder 50.

As shown in FIG. 3 , in this example, the forward side 53 and the reverse side 54 of the block 51 and the forward abutting side 41 and the reverse abutting side 42 of the embedding groove 40 are smoothly connected.

As shown in FIGS. 6 and 7 , in this example, a forward discontinuity portion 61 (note: its cross section is similar to a V-shaped groove) is formed between the forward side 53 of the block 51 and the forward abutting edge 41 of the embedding groove 40, and a reverse discontinuity portion 62 is formed between the reverse side 54 of the block 51 and the reverse abutting edge 42 of the embedding groove 40. (Note: its cross section is similar to a V-shaped groove); the radial flange 32 of the elastic engaging portion 30 is normally in contact with the block seat 51 of the embedded engaging seat 50. When the convex portion 52 of the block seat 51 and the radial flange 32 cross over and engage with each other as shown in FIG. 6, a first engaging feel is generated. When the radial flange 32 crosses the forward discontinuity portion 61 (or the reverse discontinuity portion 62), as shown in FIG. 7, a second differentiated engaging feel is generated.

10: Valve housing 11: Round frame 12: Frame opening 20: Valve stem driver seat 21: Valve stem through-hole 22: Rotating seat 23: Expanded diameter limit ring 30: Elastic clamping part 31: Arched elastic arm 32: Radial flange 40: Embedded groove 41: Forward abutment edge 42: Reverse abutment edge 43: End limit edge 44: Guide port 50: Embedded card stop seat 51: Block seat 52: Protrusion 53: Forward side 54: Reverse side 55: Abutment end 61: Forward break position 62: Reverse break position

Figure 1 is a combined three-dimensional diagram of a preferred embodiment of the present invention. Figure 2 is a decomposed three-dimensional diagram of a preferred embodiment of the present invention. Figure 3 is a cross-sectional diagram of a preferred embodiment of the present invention in a state of operation. Figure 4 is a cross-sectional diagram of a preferred embodiment of the present invention in a state of operation. Figure 5 is a cross-sectional diagram of a preferred embodiment of the present invention in a state of operation. Figure 6 is a schematic diagram of an embodiment of the present invention with a differentiated second latching feel in a state of operation. Figure 7 is a schematic diagram of an embodiment of the present invention with a differentiated second latching feel in a state of operation.

10: Valve housing

11: Round frame

12: Frame opening

20: Valve stem drives seat

21: Valve stem penetration

22: Transposition unit

23: Expansion limit ring

30: Elastic clamping part

31: Arched elastic arm

32: Radial flange

40: Embedded groove

41: Straight to the edge

42: Reverse side contact

43: End limit edge

44: Entryway

50: Embedded card stopper

51: Block

52: convex part

53: Along the side

54: Reverse side

55: Abutment end

Claims (4)

A split-type clamping device for a valve core with a circumferential clamping effect, the split-type clamping device is arranged between a circular frame formed at the upper end of a valve shell provided on a valve core and a valve rod driving seat in a radial configuration, wherein the circular frame has a frame opening, the valve rod driving seat is rotatably arranged in the circular frame, and the valve rod driving seat is formed with a valve rod through-opening and a rotating seat; the split-type clamping device comprises: A plurality of elastic clamping parts, arranged at intervals around the circumference of the rotating seat of the valve rod driving seat, each of the elastic clamping parts comprises an arched elastic arm and a radial flange formed on the outer side of the arched elastic arm; A plurality of embedding grooves are formed on the circular frame structure at positions corresponding to the elastic clamping parts, each of the embedding grooves includes a forward abutting edge, a reverse abutting edge and an end stop edge; and a plurality of embedded clamping seats are embedded and positioned in each of the embedding grooves, each of the embedded clamping seats includes a block seat and a convex portion formed on the block seat, the block seat includes a forward side, a reverse side and abutting end, respectively used to abut against the forward abutting edge, the reverse abutting edge and the end stop edge of the embedding groove; the convex portion is located between the forward side and the reverse side, and the convex portion must be located on the rotation path of the elastic clamping part. As described in claim 1, a split-type valve core clamping device with a circumferential clamping effect, each of the embedding grooves is further formed with a guide port at the relatively far end of the end limiting edge, and the guide port is located at the lower end of the circular frame body so that the embedded clamping seat can be inserted into the embedding groove through the guide port; and an expanded diameter limiting ring is formed at the lower end of the rotating seat portion of the valve rod driving seat to block the area below the guide port, thereby limiting the embedded clamping seat. As described in claim 1, the valve core split-type clamping device with a circumferential clamping effect, wherein the forward side and the reverse side of the block and the forward abutment side and the reverse abutment side of the embedding groove are of a smoothly connected type. A valve core split-type clamping device with a circumferential clamping effect as described in claim 1, wherein a forward break portion is formed between the forward side of the block seat and the forward abutting edge of the embedding groove, and a reverse break portion is formed between the reverse side of the block seat and the reverse abutting edge of the embedding groove; the radial flange of the elastic clamping portion is normally in contact with the block seat of the embedded clamping seat, and a first clamping feel is generated when the convex portion of the block seat and the radial flange cross and clamp each other, and a differentiated second clamping feel is generated when the radial flange crosses the forward break portion or the reverse break portion.

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