Valve element sleeve and quick-opening valve element

Abstract

The utility model discloses a valve element sleeve which comprises a sleeve body, a through hole for a valve element rod to penetrate through is formed in the upper end of the sleeve body, a first cavity and a second cavity are formed in the sleeve body, the second cavity is located below the first cavity, and the inner diameter of the inner wall of the first cavity is smaller than that of the inner wall of the second cavity. A step is formed at the joint of the inner wall of the first cavity and the inner wall of the second cavity; the barrel is provided with two symmetrically-arranged water passing windows formed by cutting, the water passing windows extend to the second cavity from the first cavity, and the steps are higher than the lower edges of the water passing windows. Compared with the prior art, through the arrangement of the first cavity and the second cavity, after the water passing windows are cut and formed, the step below the cylinder wall between the two water passing windows is used as a clamping and fixing position of the static sheet, so that a traditional fixing groove in the inner wall of the cylinder body is replaced, the processing is very convenient, and the cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of bathrooms, in particular to a valve core sleeve and a quick-opening valve core. Background Art

[0002] The quick-opening valve core is the most common valve core in angle valves. It is generally composed of a valve core tube, a valve stem and a ceramic quick-opening chip. The side of the valve core tube has a water hole. The valve stem is arranged in the valve core tube. The ceramic quick-opening chip is arranged in the valve core tube at the water hole and is connected to the valve stem. The valve stem is rotated to drive the ceramic quick-opening moving plate to rotate relative to the static plate to achieve water passing and water cutting.

[0003] In order to fix the static piece, it is necessary to make a groove (fixing groove) on the valve core sleeve, as shown in Chinese patent CN207830704U. This processing method can be used for copper valve core sleeves, but it is difficult to process steel valve core sleeves. For example, the blank is stamped with a fixing groove, but the inner wall of the valve core sleeve where the static piece is located needs to be turned to form a regular circular inner wall. Then, due to the intermittent cutting during turning, burrs are generated on one side of the fixing groove. It is very inconvenient to remove the burrs inside, and the cost is greatly increased.

[0004] In view of this, the inventor conducted in-depth research on the above-mentioned defects in the prior art, and thus came up with this case. Utility Model Content

[0005] The main purpose of the utility model is to provide a valve core sleeve and a quick-opening valve core, which have the characteristics of conveniently fixing a static piece and low-cost production of the valve core sleeve.

[0006] In order to achieve the above purpose, the solution of the utility model is:

[0007] A valve core sleeve, comprising a cylinder, the upper end of which has a through hole for the valve core rod to pass through, the cylinder having a first cavity and a second cavity, the second cavity being located below the first cavity, the inner diameter of the inner wall of the first cavity being smaller than the inner diameter of the inner wall of the second cavity, and a step being formed at the connection between the inner wall of the first cavity and the inner wall of the second cavity.

[0008] Furthermore, the cylinder body is provided with two water passing windows cut therein, the water passing windows extending from the first cavity to the second cavity, and the step is higher than the lower edge of the water passing windows.

[0009] Furthermore, the two water-passing windows are symmetrically arranged.

[0010] Furthermore, the cylinder is an integrated structure made of stainless steel.

[0011] Furthermore, the diameter of the outer wall of the cylinder corresponding to the first cavity is smaller than the diameter of the outer wall of the cylinder corresponding to the second cavity.

[0012] Furthermore, the water flow window is formed by laser cutting or wire cutting.

[0013] A quick-opening valve core, which includes a valve core rod, a movable plate, a static plate, a sealing gasket and a valve core sleeve, wherein the valve core rod passes through the through hole and is rotatably connected to the valve core sleeve; the movable plate is installed at the lower end of the valve core rod, and two positioning protrusions are formed on the valve core rod in radial symmetry; the distance between the outer sides of the two positioning protrusions is smaller than the inner diameter of the inner wall of the second cavity, and the distance between the outer sides of the two positioning protrusions is larger than the inner diameter of the inner wall of the first cavity; the two positioning protrusions are respectively located in two water flow windows; two opening grooves are formed at the upper end of the static plate, the static plate is installed in the second cavity, the upper surface of the static plate is in contact with the lower end of the movable plate, the step between the opening groove and the water flow window is clamped and fixed, and a sealing gasket is provided under the static plate.

[0014] Furthermore, a connecting seat is connected to the lower end of the valve core rod, and the connecting seat is inserted into a groove at the lower end of the valve core rod; a clamping block is formed at the lower end of the connecting seat, and the clamping block is clamped with a clamping hole on the moving plate.

[0015] After adopting the above structure, the valve core sleeve and the quick-opening valve core of the utility model have at least the following beneficial effects:

[0016] 1. By setting the first cavity and the second cavity and providing a step at the connection, after the water flow window is formed, the step between the two water flow windows becomes a structure for the static plate to be clamped, thereby avoiding the need to open a fixing groove on the inner wall of the cylinder, facilitating the processing of the valve core sleeve and reducing the processing cost.

[0017] 2. Since the inner diameter of the second cavity is larger than the inner diameter of the first cavity, the two positioning protrusions on the valve core rod can pass through the second cavity below the water flow window and enter the water flow window upward, and are limited by the two side walls of the water flow window, so that the valve core rod can rotate within a specific angle range.

[0018] 3. The water-passing window is processed by laser cutting or wire cutting, and the formed water-passing window has less burrs and high processing quality.

[0019] Fourth, the connecting seat connects the valve core rod and the moving plate, so that the valve core rod and the connecting seat are processed separately, which is more convenient to process.

[0020] Compared with the prior art, the utility model sets a first cavity and a second cavity. After the water-passing window is cut and formed, the step below the cylinder wall between the two water-passing windows serves as a clamping and fixing position for the static plate, thereby replacing the traditional fixing groove on the inner wall of the cylinder. The processing is very convenient and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a three-dimensional structural schematic diagram of a valve core sleeve.

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the static piece being engaged with the step of the cylinder.

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the quick-opening valve core.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the quick-opening valve core from another angle.

[0025] Figure 5 This is a schematic diagram of the disassembled mechanism of the quick-opening valve core.

[0026] Figure 6 This is a schematic diagram of the exploded structure of the quick-opening valve core from another angle.

[0027] In the figure:

[0028] The valve core sleeve 1; the cylinder 10; the through hole 11; the first cavity 12; the second cavity 13; the step 14; the water window 15; the valve core rod 2; the positioning protrusion 21; the clamping groove 22; the connecting seat 3; the clamping block 31; the moving plate 4; the clamping hole 41; the static plate 5; the opening groove 51; the sealing gasket ring 6. DETAILED DESCRIPTION

[0029] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0030] like Figures 1 to 6 As shown, it is a valve core sleeve involved in the utility model, including a cylinder 10, the upper end of the cylinder 10 has a through hole 11 for the valve core rod 2 to pass through, the cylinder 10 has a first cavity 12 and a second cavity 13, the second cavity 13 is located below the first cavity 12, the inner diameter of the inner wall of the first cavity 12 is smaller than the inner diameter of the inner wall of the second cavity 13, and a step 14 is formed at the connection between the inner wall of the first cavity 12 and the inner wall of the second cavity 13; the cylinder 10 has two symmetrically arranged water windows 15 cut thereon, the water windows 15 extend from the first cavity 12 to the second cavity 13, and the step 14 is higher than the lower edge of the water window 15.

[0031] In this way, the utility model relates to a valve core sleeve 1 and a quick-opening valve core, which are provided with a first cavity 12 and a second cavity 13 and a step 14 at the connection. After the water-passing window 15 is formed, the step 14 between the two water-passing windows 15 becomes a structure for the static plate 5 to be clamped, thereby avoiding the need to provide a fixing groove on the inner wall of the cylinder 10, facilitating the processing of the valve core sleeve 1 and reducing the processing cost. Preferably, the cylinder 10 is an integrated structure made of stainless steel. Furthermore, the water-passing window 15 is formed by laser cutting or wire cutting. The water-passing window 15 is processed by laser cutting or wire cutting, and the formed water-passing window 15 has fewer burrs and high processing quality.

[0032] Preferably, the diameter of the outer wall of the cylinder 10 corresponding to the first cavity 12 is smaller than the diameter of the outer wall of the cylinder 10 corresponding to the second cavity 13. Figure 1 As shown, the outer wall diameter of the cylinder 10 corresponding to the first cavity 12 is relatively small, so that the strength is ensured while reducing the use of materials and thus reducing costs.

[0033] The utility model also provides a quick-opening valve core, including a valve core rod 2, a movable plate 4, a static plate 5, a sealing gasket 6 and a valve core sleeve 1, the valve core rod 2 passes through the through hole 11 and is rotatably connected to the valve core sleeve 1; the movable plate 4 is installed at the lower end of the valve core rod 2, and two positioning protrusions 21 are formed on the valve core rod 2 in a radially symmetrical manner; the distance between the outer sides of the two positioning protrusions 21 is smaller than the inner diameter of the inner wall of the second cavity 13, and the distance between the outer sides of the two positioning protrusions 21 is larger than the inner diameter of the inner wall of the first cavity 12; the two positioning protrusions 21 are respectively located in two water passing windows 15; two opening grooves 51 are formed at the upper end of the static plate 5, the static plate 5 is installed in the second cavity 13, the upper surface of the static plate 5 is in contact with the lower end of the movable plate 4, the opening groove 51 is engaged and fixed with the step 14 between the water passing window 15, and a sealing gasket 6 is arranged below the static plate 5.

[0034] Since the inner diameter of the second cavity 13 is larger than the inner diameter of the first cavity 12, the two positioning protrusions 21 on the valve core rod 2 can pass through the second cavity 13 below the water window 15 and enter the water window 15 upward, and are limited by the two side walls of the water window 15, so that the valve core rod 2 can rotate within a specific angle range.

[0035] Preferably, the lower end of the valve core rod 2 is connected to a connecting seat 3, and the connecting seat 3 is inserted into the slot 22 at the lower end of the valve core rod 2; a clamping block 31 is formed at the lower end of the connecting seat 3, and the clamping block 31 is clamped with the clamping hole 41 on the moving plate 4. The connecting seat 3 connects the valve core rod 2 with the moving plate 4, so that the valve core rod 2 and the connecting seat 3 are processed separately, which is more convenient.

[0036] Compared with the prior art, the utility model sets a first cavity 12 and a second cavity 13. After the water-passing window 15 is cut and formed, the step 14 below the cylinder wall between the two water-passing windows 15 serves as a clamping and fixing position for the static plate 5, thereby replacing the traditional fixing groove on the inner wall of the cylinder 10, which is very convenient to process and low in cost.

[0037] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. A valve core sleeve, characterized in that: It includes a cylinder, the upper end of which has a through hole for the valve core rod to pass through, the cylinder has a first cavity and a second cavity, the second cavity is located below the first cavity, the inner diameter of the inner wall of the first cavity is smaller than the inner diameter of the inner wall of the second cavity, and a step is formed at the connection between the inner wall of the first cavity and the inner wall of the second cavity.

2. A valve core sleeve according to claim 1, characterized in that: The cylinder body is provided with two water passing windows cut therein, the water passing windows extending from the first cavity to the second cavity, and the step is higher than the lower edge of the water passing windows.

3. A valve core sleeve according to claim 1, characterized in that: The two water windows are symmetrically arranged.

4. A valve core sleeve as claimed in claim 1, characterized in that: The cylinder is an integrated structure made of stainless steel.

5. A valve core sleeve as claimed in claim 1, characterized in that: The diameter of the outer wall of the cylinder corresponding to the first cavity is smaller than the diameter of the outer wall of the cylinder corresponding to the second cavity.

6. A valve core sleeve as claimed in claim 2, characterized in that: The water-passing window is formed by laser cutting or wire cutting.

7. A quick-opening valve core, characterized in that: The valve core sleeve comprises a valve core rod, a moving plate, a stationary plate, a sealing gasket and a valve core sleeve. The valve core sleeve comprises a cylinder body. The upper end of the cylinder body has a through hole for the valve core rod to pass through. The cylinder body has a first cavity and a second cavity. The second cavity is located below the first cavity. The inner diameter of the inner wall of the first cavity is smaller than the inner diameter of the inner wall of the second cavity. A step is formed at the connection between the inner wall of the first cavity and the inner wall of the second cavity. The cylinder body has two water-passing windows cut thereon. The water-passing windows extend from the first cavity to the second cavity. The step is higher than the lower edge of the water-passing windows. The valve core rod passes through the through hole. The hole is rotatably connected to the valve core sleeve; the moving plate is installed at the lower end of the valve core rod, and two positioning protrusions are formed on the valve core rod in radial symmetry; the distance between the outer sides of the two positioning protrusions is smaller than the inner diameter of the inner wall of the second cavity, and the distance between the outer sides of the two positioning protrusions is larger than the inner diameter of the inner wall of the first cavity; the two positioning protrusions are respectively located in the two water-passing windows; two opening grooves are formed at the upper end of the static plate, the static plate is installed in the second cavity, the upper surface of the static plate is in contact with the lower end of the moving plate, the step between the opening groove and the water-passing window is clamped and fixed, and a sealing gasket ring is arranged under the static plate.

8. A quick-opening valve core as claimed in claim 7, characterized in that: The lower end of the valve core rod is connected with a connecting seat, and the connecting seat is clamped into the clamping groove at the lower end of the valve core rod; a clamping block is formed at the lower end of the connecting seat, and the clamping block is clamped with the clamping hole on the moving plate.

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