Combined copper valve rod

Abstract

The utility model relates to the technical field of valve rods, in particular to a combined type copper valve rod which comprises a threaded rod, a connecting rod arranged at the bottom end of the threaded rod, a connecting sleeve arranged on the outer side of the connecting rod, a spline groove formed in the bottom end of the threaded rod, a connecting spline fixed to the top end of the connecting rod, a protruding plate fixed to the outer side of the connecting rod and a plurality of positioning protruding blocks fixed to one side of the protruding plate. An opening is formed in the upper side of the connecting sleeve, a plurality of notches are formed in one side of the opening, and grooves are formed in the side face of the connecting sleeve and located beside the notches. The problems that the length of an existing valve rod is inconvenient to adjust before the valve rod is used, and the whole rod is inconvenient to transport due to the fact that the whole rod is long and large in occupied area are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve stems, in particular to a combined copper valve stem. Background Art

[0002] The operating rod or the rod-shaped part of the valve. The valve stem is used to control the opening and closing of the valve, usually by rotating or pushing and pulling to operate the valve;

[0003] The length of the existing valve stem is generally predetermined before manufacturing, which makes it inconvenient to adjust the overall length during later use. In addition, since some valve stems are relatively long, they occupy a large space and are inconvenient to transport. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing valve stem is not convenient to adjust its length before use, and has the problem that the whole stem is long and occupies a large area, which makes it inconvenient to transport the whole stem.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is a combined copper valve stem, including a threaded rod, a connecting rod is provided at the bottom end of the threaded rod, a connecting sleeve is provided on the outside of the connecting rod, a spline groove is provided at the bottom end of the threaded rod, a connecting spline is fixed at the top of the connecting rod, a convex plate is fixed on the outside of the connecting rod, a plurality of positioning protrusions are fixed on one side of the convex plate, an opening is provided on the upper side of the connecting sleeve, a plurality of notches are provided on one side of the opening, and grooves are provided on the side of the connecting sleeve next to the notches.

[0006] As a further solution of the utility model: a plurality of threaded connection holes are provided on the upper side of the spline groove and the connecting spline, and a clamping groove is provided on the inner side of the spline groove at the threaded connection hole. The connecting spline is clamped in the clamping groove and fixed in the threaded connection hole by a long bolt threaded connection, so as to fix the threaded rod and the connecting rod.

[0007] As a further solution of the utility model: a threaded hole is provided on one side of the positioning protrusion, and a through hole is provided on one side of the groove.

[0008] As a further solution of the utility model: the positioning protrusion is inserted into the notch, and is screwed into the threaded hole through a short bolt passing through the through hole, so as to fix the position between the connecting rod and the connecting sleeve.

[0009] As a further solution of the utility model: the outer arc lengths of the convex plate and the positioning convex block are equal to the outer arc length of the opening, so that the convex plate and the positioning convex block can slide conveniently in the opening.

[0010] As a further solution of the utility model: a valve core connecting end is provided at the bottom end of the connecting sleeve for connecting an external valve core or a valve plate.

[0011] Compared with the prior art, the utility model has the following advantages: 1. The patent adds a threaded rod, a connecting rod and a connecting sleeve structure, and divides the entire valve stem into three parts, which reduces the space occupied and facilitates transportation;

[0012] 2. Several positioning protrusions and notch structures are added. By adjusting the position of the positioning protrusion in the notch, the distance between the connecting rod and the connecting sleeve can be adjusted, thereby adjusting the length of the valve stem. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of a combined copper valve stem.

[0015] Figure 2 It is a schematic exploded view of the overall structure of a combined copper valve stem of the utility model.

[0016] Figure 3 The utility model is a schematic diagram of the connection between the threaded rod and the connecting rod in a combined copper valve stem.

[0017] Figure 4 The utility model is a schematic diagram of the connection between the connecting rod and the connecting sleeve in a combined copper valve stem.

[0018] In the attached figure:

[0019] 1. Threaded rod; 2. Connecting rod; 3. Connecting sleeve; 1.1. Spline groove; 1.2. Clamping groove; 2.1. Connecting spline; 2.2. Protruding plate; 2.3. Positioning convex block; 3.1. Opening; 3.2. Notch; 3.3. Groove; 3.4. Valve core connecting end. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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 in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model provides a technical solution to solve the existing problems raised in the background technology.

[0022] Combined with Figure 1-4It can be known that the device includes a threaded rod 1, a connecting rod 2 is provided at the bottom end of the threaded rod 1, a connecting sleeve 3 is provided on the outside of the connecting rod 2, a spline groove 1.1 is opened at the bottom end of the threaded rod 1, a connecting spline 2.1 is fixed on the top of the connecting rod 2, a convex plate 2.2 is fixed on the outside of the connecting rod 2, a plurality of positioning protrusions 2.3 are fixed on one side of the convex plate 2.2, an opening 3.1 is opened on the upper side of the connecting sleeve 3, a plurality of notches 3.2 are opened on one side of the opening 3.1, and grooves 3.3 are opened on the side of the connecting sleeve 3 next to the notch 3.2.

[0023] The spline groove 1.1 and the connecting spline 2.1 are both provided with a plurality of threaded connection holes on their upper sides, and a clamping groove 1.2 is provided on the inner side of the spline groove 1.1 at the threaded connection hole, and the connecting spline 2.1 is clamped in the clamping groove 1.2, and the connecting spline 2.1 is clamped in the spline groove 1.1, and is fixed in the threaded connection hole by a long bolt threaded connection, so that the threaded rod 1 and the connecting rod 2 can be fixed; a threaded hole is provided on one side of the positioning protrusion 2.3, and a through hole is provided on one side of the groove 3.3; the positioning protrusion 2.3 is inserted into the notch 3.2, and is screwed and connected in the threaded hole by a short bolt passing through the through hole, so as to fix the position between the connecting rod 2 and the connecting sleeve 3; the outer arc length of the convex plate 2.2 and the positioning protrusion 2.3 is equal to the outer arc length of the opening 3.1, so that the convex plate 2.2 and the positioning protrusion 2.3 can slide conveniently in the opening 3.1; a valve core connection terminal 3.4 is provided at the bottom end of the connecting sleeve 3 for connecting an external valve core or a valve plate.

[0024] The working principle of the present application is as follows: when assembling the valve stem, first align the connecting spline 2.1 with the spline groove 1.1, then insert the connecting spline 2.1 into the spline groove 1.1, and then rotate it so that the connecting spline 2.1 is snapped into the snap-in groove 1.2, so that the spline groove 1.1 is aligned with the threaded connection hole on the upper side of the connecting spline 2.1, and then fix it with long bolts to fix the threaded rod 1 and the connecting rod 2, and then insert the connecting rod 2 into the connecting sleeve 3, and at the same time, the convex plate 2.2 and the positioning protrusion 2.3 will be inserted into the opening 3.1, and then rotate the connecting sleeve 3 to make the positioning protrusion 2.3 snap into the groove 3.2, and then fix it with short bolts to fix the connecting rod 2 and the connecting sleeve 3.

[0025] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A combined copper valve stem, comprising a threaded rod (1), characterized in that: The threaded rod (1) has a connecting rod (2) at the bottom end, a connecting sleeve (3) is provided on the outside of the connecting rod (2), a spline groove (1.1) is provided at the bottom end of the threaded rod (1), a connecting spline (2.1) is fixed on the top end of the connecting rod (2), a convex plate (2.2) is fixed on the outside of the connecting rod (2), a plurality of positioning convex blocks (2.3) are fixed on one side of the convex plate (2.2), an opening (3.1) is provided on the upper side of the connecting sleeve (3), a plurality of notches (3.2) are provided on one side of the opening (3.1), and a groove (3.3) is provided on the side of the connecting sleeve (3) next to the notch (3.2).

2. The combined copper valve stem according to claim 1, characterized in that: A plurality of threaded connection holes are provided on the upper sides of the spline groove (1.1) and the connecting spline (2.1); a clamping groove (1.2) is provided on the inner side of the spline groove (1.1) at the threaded connection hole; the connecting spline (2.1) is clamped in the clamping groove (1.2) and fixed in the threaded connection hole by means of a long bolt threaded connection.

3. The combined copper valve stem according to claim 1, characterized in that: A threaded hole is provided on one side of the positioning protrusion (2.3), and a through hole is provided on one side of the groove (3.3).

4. The combined copper valve stem according to claim 1, characterized in that: The positioning protrusion (2.3) is inserted into the notch (3.2) and is screwed into the threaded hole by a short bolt passing through the through hole thread.

5. The combined copper valve stem according to claim 1, characterized in that: The outer arc lengths of the convex plate (2.2) and the positioning convex block (2.3) are equal to the outer arc length of the opening (3.1).

6. The combined copper valve stem according to claim 1, characterized in that: The bottom end of the connecting sleeve (3) is provided with a valve core connecting end (3.4).

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