Quick assembly valve

Abstract

The quick assembly valve comprises a valve body, a valve rod and a valve head, a cover plate is arranged at an opening in the upper end of the valve body, a threaded hole is formed in the middle of the cover plate, the cover plate is in threaded connection with the valve rod through the threaded hole, the outer portion of the upper end of the valve body is in threaded connection with a valve deck, the cover plate is fixed to the opening in the upper end of the valve body through the valve deck, and a through hole is formed in the middle of the valve deck. The mounting hole is in clearance fit with the valve rod, the ball is arranged in the ball groove, the transverse hole communicated with the ball groove is formed in one side of the upper portion of the valve head, the ball is placed in the ball groove through the transverse hole, the ball in the ball groove limits the valve rod, and the valve rod can be prevented from sliding out of the mounting hole. However, the ball cannot fix the valve rod, the valve rod can shake to a certain extent in the mounting hole, and the connecting position of the valve rod and the valve head can be adjusted in a shaking mode during assembly, so that the valve rod and the valve head are rapidly matched with the valve body and related accessories, rapid assembly of the valve is achieved, and the assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve processing, in particular to a quick assembly valve. Background Art

[0002] Valves are pipe accessories used to open and close pipelines, control flow direction, and regulate and control the parameters (temperature, pressure, and flow) of the conveying medium. They have functions such as shutoff, regulation, diversion, backflow prevention, pressure stabilization, diversion, or overflow pressure relief. Valves used in fluid control systems come in a wide variety of types and specifications, from the simplest shut-off valves to the most complex valves used in automatic control systems.

[0003] At present, the conventional connection method between the valve stem and the valve head in the valve is to connect by thread and then fix by a transverse pin, or to insert one end of the valve stem into the reserved hole at the end of the valve head and then position it by a transverse pin. In this way, the valve stem and the valve head fit very compactly. When the valve stem and the valve head are assembled to the valve body, the connection position of the valve stem and the valve head is not easy to adjust. If the matching tolerance is not well controlled during assembly, the valve stem and the valve head will not be easy to adapt to the valve body and related accessories, which is not conducive to the assembly work of the valve and affects the assembly efficiency of the valve.

[0004] Therefore, those skilled in the art provide a quick assembly valve to solve the problems raised in the above background technology. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a quick-assembly valve, including a valve body, a valve stem and a valve head. A cover plate is provided at the opening of the upper end of the valve body, and a threaded hole is provided in the middle of the cover plate. The cover plate is threadedly connected to the valve stem through the threaded hole. The upper end of the valve body is externally threadedly connected to the valve cover, and the valve cover is used to fix the cover plate at the opening of the upper end of the valve body. A through hole is provided in the middle of the valve cover. The through hole provided on the valve cover is used to avoid the valve stem. A downward mounting hole is provided in the middle of the upper end of the valve head, and the mounting hole is matched with the lower part of the valve stem. The matching mode of the mounting hole and the valve stem is a clearance fit. A ball groove is provided at the matching position between the lower part of the valve stem and the mounting hole, and a ball is provided in the ball groove. A transverse hole connected to the ball groove is provided on one side of the upper end of the valve head, and the ball is placed in the ball groove through the transverse hole.

[0006] Preferably, the valve body includes an inflow cavity and an outflow cavity, and a communicating hole is provided in the middle of the inflow cavity and the outflow cavity, so that the fluid entering the inflow cavity can flow into the outflow cavity when the valve is opened.

[0007] Preferably, the transverse hole on the upper portion of the valve head is a threaded hole, and a plug is connected to the threaded portion of the transverse hole. The plug can prevent the ball from rolling out of the ball groove through the transverse hole.

[0008] Preferably, an annular clamping groove is provided on the upper side surface of the valve head corresponding to the ball groove, and a clamping ring is provided in the clamping groove. The clamping ring can prevent the ball from rolling out of the ball groove through the transverse hole.

[0009] Preferably: the valve stem includes a rod body, the valve stem is a stepped shaft rod structure, a threaded portion 1 is provided at the end of the small diameter section of the valve stem, the threaded portion 1 is used to fix the valve rotating handle, the large diameter section of the rod body is provided with a threaded portion 2, the threaded portion 2 is threadedly connected to the threaded hole on the cover plate, and a flange is fixedly provided at the lower part of the rod body, and the flange is provided to limit the distance the rod body moves upward to prevent the threaded portion 2 from disengaging from the threaded hole on the cover plate when the valve stem moves upward.

[0010] Preferably: an upward groove is provided at the lower end of the valve head, and a downwardly protruding threaded head is provided at the center of the groove. The threaded head is threadedly connected to the sealing head, and the sealing head cooperates with the connecting hole. When the sealing head slides in the connecting hole, it can guide the downward moving valve head, so that the valve head can move downward more stably and close the valve more stably.

[0011] Preferably, a gasket is provided at the bottom of the groove at the lower end of the valve head, and the provision of the gasket can achieve a better sealing effect when closing the valve.

[0012] Technical effects and advantages of this utility model:

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The mounting hole and the valve stem provided in the utility model are matched in a clearance fit, a ball groove is provided at the matching position between the lower part of the valve stem and the mounting hole, a ball is provided in the ball groove, a transverse hole connected to the ball groove is provided on one side of the upper part of the valve head, the ball is placed in the ball groove through the transverse hole, the ball in the ball groove limits the valve stem, which can prevent the valve stem from slipping out of the mounting hole, but the ball will not fix the valve stem, the valve stem can be shaken to a certain extent in the mounting hole, and the connection between the valve stem and the valve head can be shaken and adjusted during assembly, so that the valve stem and the valve head can be quickly matched with the valve body and related accessories, thereby realizing rapid assembly of the valve and improving assembly efficiency.

[0015] 2. The lower part of the rod body provided in the present invention is fixed with a flange, which limits the distance the rod body moves upward, thereby preventing the second threaded portion from being separated from the threaded hole on the cover plate when the valve stem moves upward.

[0016] 3. The lower end of the valve head provided in the utility model is provided with an upward groove, and the center of the groove is provided with a downwardly protruding threaded head, which is threadedly connected to the sealing head. The sealing head cooperates with the connecting hole. When the sealing head slides in the connecting hole, it can guide the downward moving valve head, so that the valve head can move downward more stably and close the valve more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of the quick assembly valve provided in an embodiment of the present application in assembly state 1;

[0018] Figure 2 This is an internal structure diagram of the quick assembly valve provided in an embodiment of the present application in assembly state 1;

[0019] Figure 3 This is a structural diagram of the second assembly state of the quick assembly valve provided in an embodiment of the present application;

[0020] Figure 4 This is an internal structure diagram of the quick assembly valve provided in an embodiment of the present application in the second assembly state;

[0021] Figure 5 This is a top view of the connection structure between the valve stem and the valve head in the quick assembly valve provided in an embodiment of the present application;

[0022] Figure 6 This is a structural diagram of a valve stem in a quick-assembly valve provided in an embodiment of the present application;

[0023] Figure 7 This is a structural diagram of a clamping ring in a quick-assembly valve provided in an embodiment of the present application.

[0024] Among them: valve body 1, valve cover 2, cover plate 3, valve stem 4, rod body 41, threaded part 1 42, threaded part 2 43, flange 44, ball groove 45, plug 5, valve head 6, ball 7, retaining ring 8, gasket 9, threaded head 10, sealing head 11, and retaining groove 12. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

[0026] Example 1

[0027] See also Figure 1-6In this embodiment, a quick assembly valve is provided, including a valve body, a valve stem 4 and a valve head 6. A cover plate 3 is provided at the upper opening of the valve body 1, and a threaded hole is provided in the middle of the cover plate 3. The cover plate 3 is threadedly connected to the valve stem 4 through the threaded hole. The upper end of the valve body 1 is externally threadedly connected to the valve cover 2. The valve cover 2 is used to fix the cover plate 3 at the upper opening of the valve body 1. A through hole is provided in the middle of the valve cover 2. The through hole provided on the valve cover 2 is used to avoid the valve stem 4. A downward mounting hole is provided in the middle of the upper end of the valve head 6. The mounting hole is matched with the lower part of the valve stem 4. The matching mode of the mounting hole and the valve stem 4 is a clearance fit. The lower part of the valve stem 4 A ball groove 45 is provided at the fitting place of the valve head 6 and the mounting hole, and a ball 7 is arranged in the ball groove 45. A transverse hole connected to the ball groove is provided on one side of the upper part of the valve head 6, and the ball 7 is placed in the ball groove 45 through the transverse hole. The ball 7 in the ball groove 45 limits the valve stem 4 to prevent the valve stem 4 from slipping out of the mounting hole, but the ball does not fix the valve stem. The valve stem 4 can be shaken to a certain extent in the mounting hole. During assembly, the connection between the valve stem 4 and the valve head 6 can be shaken to adjust the valve stem 4, so that the valve stem 4 and the valve head 6 can be quickly matched with the valve body 1 and related accessories, thereby realizing rapid assembly of the valve and improving assembly efficiency.

[0028] The valve body 1 includes an inflow chamber and an outflow chamber. A communicating hole is provided in the middle of the inflow chamber and the outflow chamber. When the valve is opened, the fluid entering the inflow chamber can flow into the outflow chamber.

[0029] An annular clamping groove 12 is provided on the upper side of the valve head 6 corresponding to the ball groove 45 , and a clamping ring 8 is clamped in the clamping groove 12 . The clamping ring 8 can prevent the ball 7 from rolling out of the ball groove 45 through the transverse hole.

[0030] The valve stem 4 includes a rod body 41, and the valve stem 4 is a stepped shaft structure. A threaded portion 42 is provided at the end of the small diameter section of the valve stem 4. The threaded portion 42 is used to fix the valve rotating handle. Since the valve rotating handle is not an improvement point of this application, its structure is not drawn in the drawings of the specification. The large diameter section of the rod body 41 is provided with a threaded portion 43, and the threaded portion 43 is threadedly connected to the threaded hole on the cover plate 3. A flange 44 is fixedly provided at the lower part of the rod body 41. The flange 44 is provided to limit the upward movement distance of the rod body 41 to prevent the threaded portion 43 from disengaging from the threaded hole on the cover plate 3 when the valve stem 4 moves upward.

[0031] An upward groove is provided at the lower end of the valve head 6, and a downwardly protruding threaded head 10 is provided at the center of the groove. The threaded head 10 is threadedly connected to the sealing head 11, and the sealing head 11 cooperates with the connecting hole. When the sealing head 11 slides in the connecting hole, it can guide the downward moving valve head 6, so that the valve head 6 can move downward more stably and close the valve more stably.

[0032] A gasket 9 is provided at the bottom of the groove at the lower end of the valve head 6 , and the provision of the gasket 9 can achieve a better sealing effect when closing the valve.

[0033] Example 2

[0034] Compared with Example 1, Example 2 is different in that the transverse hole on the upper part of the valve head 6 is a threaded hole, and the plug 5 is connected to the thread in the transverse hole. The plug 5 can prevent the ball 7 from rolling out of the ball groove 45 through the transverse hole.

[0035] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making any creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in this utility model shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A quick assembly valve, comprising a valve body, a valve stem (4) and a valve head (6), characterized in that: A cover plate (3) is provided at the upper opening of the valve body (1), a threaded hole is provided in the middle of the cover plate (3), and the cover plate (3) is threadedly connected to the valve stem (4) through the threaded hole. The upper end of the valve body (1) is externally threadedly connected to the valve cover (2), and the valve cover (2) is used to fix the cover plate (3) to the upper opening of the valve body (1). A through hole is provided in the middle of the valve cover (2), and the through hole provided on the valve cover (2) is used to avoid the valve stem (4). A downward mounting hole is provided at the middle of the upper end of the valve head (6), and the mounting hole is matched with the lower part of the valve stem (4). The matching mode of the mounting hole and the valve stem (4) is a clearance fit. A ball groove (45) is provided at the matching position between the lower part of the valve stem (4) and the mounting hole, and a ball (7) is provided in the ball groove (45). A transverse hole connected to the ball groove is provided on one side of the upper part of the valve head (6), and the ball (7) is placed in the ball groove (45) through the transverse hole.

2. A quick assembly valve according to claim 1, characterized in that: The valve body (1) comprises an inflow chamber and an outflow chamber, wherein a communicating hole is provided in the middle of the inflow chamber and the outflow chamber, and when the valve is opened, the fluid entering the inflow chamber can flow into the outflow chamber.

3. A quick assembly valve according to claim 1, characterized in that: The transverse hole on the upper part of the valve head (6) is a threaded hole, and the plug (5) is connected to the thread in the transverse hole. The plug (5) can prevent the ball (7) from rolling out of the ball groove (45) through the transverse hole.

4. A quick assembly valve according to claim 1, characterized in that: An annular clamping groove (12) is provided on the upper side of the valve head (6) corresponding to the ball groove (45), and a clamping ring (8) is clamped in the clamping groove (12). The clamping ring (8) can prevent the ball (7) from rolling out of the ball groove (45) through the transverse hole.

5. The quick assembly valve according to claim 1, characterized in that: The valve stem (4) includes a rod body (41), the valve stem (4) is a stepped shaft structure, a threaded portion (42) is provided at the end of the small diameter section of the valve stem (4), the threaded portion (42) is used to fix the valve rotary handle, the large diameter section of the rod body (41) is provided with a threaded portion (43), the threaded portion (43) is threadedly connected to the threaded hole on the cover plate (3), and a flange (44) is fixedly provided at the lower part of the rod body (41), and the flange (44) is provided to limit the distance that the rod body (41) moves upward, so as to prevent the threaded portion (43) from being separated from the threaded hole on the cover plate (3) when the valve stem (4) moves upward.

6. The quick assembly valve according to claim 1, characterized in that: The lower end of the valve head (6) is provided with an upward groove, and the center of the groove is provided with a downwardly protruding threaded head (10), the threaded head (10) is threadedly connected to the sealing head (11), and the sealing head (11) cooperates with the connecting hole. When the sealing head (11) slides in the connecting hole, it can guide the valve head (6) moving downward, so that the valve head (6) can move downward more stably and the valve can be closed more stably.

7. The quick assembly valve according to claim 1, characterized in that: A gasket (9) is provided at the bottom of the groove at the lower end of the valve head (6), and the provision of the gasket (9) can achieve a better sealing effect when closing the valve.

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