Anti-theft valve with high safety

Abstract

The utility model belongs to the technical field of anti-theft valves, and provides an anti-theft valve with high safety, which comprises a valve body, a lower valve cover is in threaded connection with the valve body through a bolt, a lower manual adjusting shaft is fixedly connected in the lower valve cover, and a spring compression bolt for compressing an automatic valve plug downwards is fixedly connected to one end, far away from the lower valve cover, of the lower manual adjusting shaft. The spring compression bolt is in threaded connection with an automatic valve plug, an automatic outer sleeve is fixedly connected to the lower valve cover, and the automatic outer sleeve is connected to the automatic valve plug in a sleeving mode. According to the utility model, the automatic valve plug is pressed downwards by the valve rod of the automatic regulating valve core through the pressure spring and the spring compression bolt, and the automatic valve plug is in an open state under the action of spring force, so that the automatic valve plug is in a closed state when the liquid pressure at the inlet end of the valve body is greater than the pressure at the outlet end and the spring force; and the automatic valve plug of the valve can close the valve opening of the valve body under the action of pressure, so that the problem of serious water loss and heat loss caused by pipe explosion of a heat supply enterprise and water drainage of a heat consumer is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a theftproof valve technical field especially relates to a theftproof valve with high safety. BACKGROUND

[0002] With the centralized heating supply heating radius more and more big, the heat source near end overheating and the far end heating slightly poor condition occurs sometimes, especially the old community heat preservation effect is poor, the old heating facilities cause the heating effect to be not ideal. Therefore, an urgent need for a kind of product with anti-water loss function. CONTENT

[0003] The utility model aims at solving the shortcomings in the prior art, and provides a theftproof valve with high safety.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme: a theftproof valve with high safety, including valve body, the valve body is connected with lower valve cover through bolt screw thread, and lower valve cover inside is fixed with lower manual regulating shaft, and the one end of lower manual regulating shaft away from lower valve cover is fixed with automatic valve plug down spring compression bolt, and spring compression bolt is connected with automatic valve plug, the lower valve cover is fixed with automatic sleeve, and automatic sleeve is connected on automatic valve plug, the one end of valve body away from lower valve cover is connected with upper valve cover through bolt screw thread, the upper valve cover is equipped with upper manual regulating shaft, the upper manual regulating shaft is fixedly connected with adjusting rod, and the one end of adjusting rod away from upper manual regulating shaft is fixed with automatic regulating valve core, and automatic regulating valve core is divided into upper cavity and lower cavity through automatic sleeve.

[0005] Further description of the above technical scheme:

[0006] The lower valve cover is equipped with the first valve cover O type ring that prevents the leakage of liquid or gaseous medium from the gap of theftproof valve, and the upper valve cover is also equipped with the second valve cover O type ring that prevents the leakage of liquid or gaseous medium from the gap of theftproof valve.

[0007] Further description of the above technical scheme:

[0008] The first regulating shaft O type ring that prevents the leakage of liquid or gaseous medium from the gap is arranged between the lower valve cover and lower manual regulating shaft, and the first regulating shaft O type ring is also arranged between the gap between the upper valve cover and upper manual regulating shaft, and the second regulating shaft O type ring that prevents the leakage of liquid or gaseous medium from the gap is arranged between the upper valve cover and upper manual regulating shaft.

[0009] Further description of the above technical scheme:

[0010] The lower valve cover and the upper valve cover are both fixed with a film cover for connecting the valve body, and a sealing gasket is arranged at the contact point between the lower valve cover and the valve body, and both sides of the sealing gasket are fixed on the lower valve cover and the valve body.

[0011] As a further description of the above technical solution:

[0012] The spring pressing bolt is fixed with a first spring, and an end of the first spring away from the spring pressing bolt is fixed on the automatic valve plug.

[0013] As a further description of the above technical solution:

[0014] The lower manual adjusting shaft and the upper manual adjusting shaft are parallel in the valve body.

[0015] As a further description of the above technical solution:

[0016] When the first spring is in an open state, the automatic valve plug is in an open state.

[0017] The utility model has the advantages of the following beneficial effects:

[0018] In the utility model, the valve rod of the automatic adjusting valve core is pressed down by the automatic valve plug through the spring pressing bolt of the compression spring, and when the automatic valve plug is subjected to the spring force, the automatic valve plug is in an open state; when the liquid pressure at the inlet end of the valve body is greater than the pressure at the outlet end plus the spring force, the automatic valve plug of the valve closes the valve port of the valve body under the action of the pressure, thereby solving the problem of serious water and heat loss caused by pipe explosion and water discharge of the heat user of the heat supply enterprise. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 An internal sectional view of the safe anti-theft valve is provided in the utility model;

[0020] LEGEND:

[0021] 01, lower valve cover; 02, first valve cover O-shaped ring; 03, lower manual adjusting shaft; 04, first adjusting shaft O-shaped ring; 05, film cover; 06, sealing gasket; 07, spring pressing bolt; 08, first spring; 09, automatic valve plug; 10, valve body; 11, automatic sleeve; 12, adjusting rod; 13, second adjusting shaft O-shaped ring; 14, upper manual adjusting shaft; 15, second valve cover O-shaped ring; 16, upper valve cover. DETAILED DESCRIPTION

[0022] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made, belong to the scope of protection of the present application.

[0023] Embodiment: please refer to Figure 1 The utility model provides a kind of high security anti-theft valve, including valve body 10, and the lower valve cover 01 is connected by bolt screw thread on valve body 10, and lower valve cover 01 inside is fixed with lower manual regulating shaft 03, while lower manual regulating shaft 03 end away from lower valve cover 01 is fixed with automatic valve plug 09 is pressed down spring compression bolt 07, and spring compression bolt 07 is connected with automatic valve plug 09 by screw thread, and automatic sleeve 11 is fixed on lower valve cover 01, and automatic sleeve 11 is sleeved on automatic valve plug 09, and the upper valve cover 16 is connected by bolt screw thread on the end of valve body 10 away from lower valve cover 01, and the upper valve cover 16 is equipped with upper manual regulating shaft 14, and the regulating rod 12 is fixedly connected on upper manual regulating shaft 14, and automatic regulating valve core is fixedly connected on the end of regulating rod 12 away from upper manual regulating shaft 14, and automatic regulating valve core is divided into upper cavity and lower cavity by automatic sleeve 11 with automatic valve plug 09.

[0024] Working principle: press first spring 08 and the valve rod of automatic regulating valve core is pressed down by spring compression bolt 07 with automatic valve plug 09, since automatic valve plug 09 is in open state when being acted on by the force of first spring 08, when the liquid pressure of valve body 10 import end is greater than export end pressure plus first spring 08 force, valve body 10 valve port will be closed under the action of pressure with automatic valve plug 09, and lower manual regulating shaft 03 is located on lower valve cover 01, so the opening of automatic valve core can be manually regulated, and the maximum flow corresponding to each opening is fixed, when the flow through valve is greater than the maximum flow under corresponding opening, valve will be closed automatically, and upper manual regulating shaft 14 is located on upper valve cover 16, and when valve body 10 is closed automatically, the quick opening function of valve can be realized by adjusting upper manual regulating shaft 14, so when the rear end flow of the valve installed with the valve exceeds the set flow, the valve will be closed automatically, and the problem of serious water and heat loss caused by pipe explosion and water release of hot user of heating enterprise is solved.

[0025] As a preferred implementation, first valve cover O-ring 02 that prevents anti-theft valve liquid or gas medium from leaking from gap is arranged in lower valve cover 01, and second valve cover O-ring 15 that prevents anti-theft valve liquid or gas medium from leaking from gap is also arranged in upper valve cover 16.

[0026] As Figure 1As shown in the figure: two sets of first valve cover O-rings 02 are arranged on both sides of the lower valve cover 01, and two sets of second valve cover O-rings 15 are arranged on both sides of the upper valve cover 16.

[0027] As a preferred embodiment, a first adjusting shaft O-ring 04 is arranged between the lower valve cover 01 and the lower manual adjusting shaft 03 to prevent liquid or gas medium from leaking from the gap, and the first adjusting shaft O-ring 04 is also arranged between the upper valve cover 16 and the upper manual adjusting shaft 14, and a second adjusting shaft O-ring 13 is arranged between the upper valve cover 16 and the upper manual adjusting shaft 14 to prevent liquid or gas medium from leaking from the gap.

[0028] As shown in the figure: Figure 1 Two sets of first adjusting shaft O-rings 04 are arranged on both sides of the lower valve cover 01, and the distance between the two sets of first adjusting shaft O-rings 04 is less than the distance between the two sets of first valve cover O-rings 02, and two sets of second adjusting shaft O-rings 13 are arranged on both sides of the upper valve cover 16, and the distance between the two sets of second adjusting shaft O-rings 13 is less than the distance between the two sets of second valve cover O-rings 15.

[0029] As a preferred embodiment, a film cover 05 is fixedly connected to the lower valve cover 01 and the upper valve cover 16 for connecting the valve body 10, and a sealing gasket 06 is arranged at the contact point between the lower valve cover 01 and the valve body 10, and the two sides of the sealing gasket 06 are fixedly connected to the lower valve cover 01 and the valve body 10.

[0030] As shown in the figure: Figure 1 Two sets of film covers 05 are arranged at both ends of the lower valve cover 01, and the material of the sealing gasket 06 is rubber.

[0031] As a preferred embodiment, a first spring 08 is fixedly connected to the spring compression bolt 07, and the end of the first spring 08 away from the spring compression bolt 07 is fixedly connected to the automatic valve plug 09.

[0032] As shown in the figure: Figure 1 The first spring 08 is located at the lower end of the valve body 10, and the recess of the automatic valve plug 09 is provided with the first spring 08.

[0033] As a preferred embodiment, the lower manual adjusting shaft 03 and the upper manual adjusting shaft 14 are parallel to each other in the valve body 10.

[0034] As shown in the figure: Figure 1 The outer side of the lower manual adjusting shaft 03 is tightly attached to the inner wall on both sides of the lower valve cover 01, and the outer side of the upper manual adjusting shaft 14 is tightly attached to the inner wall on both sides of the upper valve cover 16.

[0035] As a preferred embodiment, the automatic valve plug 09 is in an open state when the first spring 08 is in an open state.

[0036] Finally, it should be noted that the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A high-security anti-theft valve, comprising a valve body (10), characterized in that: The valve body (10) is connected to a lower valve cover (01) by bolt threads, and a lower manual adjustment shaft (03) is fixed inside the lower valve cover (01). At the same time, a spring-pressing bolt (07) that presses the automatic valve plug (09) downward is fixed to one end of the lower manual adjustment shaft (03) away from the lower valve cover (01), and the spring-pressing bolt (07) is threaded to the automatic valve plug (09). An automatic outer sleeve (11) is fixed to the lower valve cover (01), and the automatic outer sleeve (11) is fitted onto the automatic valve plug (09). On the valve plug (09), the valve body (10) is connected to the upper valve cover (16) by bolt thread at one end away from the lower valve cover (01). The upper valve cover (16) is provided with an upper manual adjustment shaft (14). An adjustment rod (12) is fixedly connected through the upper manual adjustment shaft (14). An automatic adjustment valve core is fixedly connected at one end of the adjustment rod (12) away from the upper manual adjustment shaft (14). The automatic adjustment valve core divides the automatic valve plug (09) into an upper chamber and a lower chamber through an automatic outer sleeve (11).

2. The anti-theft valve with high security according to claim 1, characterized in that: The lower valve cover (01) is provided with a first valve cover O-ring (02) to prevent the liquid or gas medium of the anti-theft valve from leaking through the gap, and the upper valve cover (16) is also provided with a second valve cover O-ring (15) to prevent the liquid or gas medium of the anti-theft valve from leaking through the gap.

3. The anti-theft valve with high security according to claim 2, characterized in that: A first adjusting shaft O-ring (04) is provided between the lower valve cover (01) and the lower manual adjusting shaft (03) to prevent liquid or gas medium from leaking from the gap. The first adjusting shaft O-ring (04) is also provided in the gap between the upper valve cover (16) and the upper manual adjusting shaft (14). At the same time, a second adjusting shaft O-ring (13) is provided between the upper valve cover (16) and the upper manual adjusting shaft (14) to prevent liquid or gas medium from leaking from the gap.

4. The anti-theft valve with high security according to claim 3, characterized in that: Both the lower valve cover (01) and the upper valve cover (16) are fixedly connected with a membrane cover (05) for connecting the valve body (10), and a sealing gasket (06) is provided at the contact point between the lower valve cover (01) and the valve body (10). At the same time, the two sides of the sealing gasket (06) are fixedly connected to the lower valve cover (01) and the valve body (10).

5. The anti-theft valve with high security according to claim 4, characterized in that: A first spring (08) is fixedly connected to the spring clamping bolt (07), and the end of the first spring (08) away from the spring clamping bolt (07) is fixedly connected to the automatic valve plug (09).

6. The anti-theft valve with high security according to claim 5, characterized in that: The lower manual adjustment shaft (03) and the upper manual adjustment shaft (14) are parallel to each other inside the valve body (10).

7. A high-security anti-theft valve according to claim 6, characterized in that: When the first spring (08) is in the open state, the automatic valve plug (09) is in the open state.

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