Connecting valve for grooved pipe fitting

Abstract

The utility model belongs to the technical field of groove valves, and discloses a connecting valve for a groove pipe fitting, which comprises a valve body, a vertical bin is welded at the top of the valve body, the valve body is arranged in the valve body, a valve rod is arranged at the control end of the top of the valve body, a concave cavity is arranged at the top of the valve rod, and an extension rod is arranged in the concave cavity. When the valve needs to be closed, the clamping rod is separated from the interior of the fixing hole, then the extension rod is lifted, and after the position of the extension rod is adjusted properly, under the elastic action of the spring, the clamping rod enters the interior of the fixing hole to be clamped, and the extension rod and the valve rod are clamped and fixed. At the moment, the extension rod is rotated by holding the rotary sleeve, the valve rod is driven to rotate in a linkage mode, then the valve plate at the bottom of the valve rod is rotated, starting and stopping of the valve are achieved, adjustment of the overall length of the valve rod and the extension rod can be rapidly achieved, high applicability is achieved, and rapid starting and stopping can be conveniently conducted in different environments.

Description

Technical Field

[0001] The utility model relates to the technical field of groove valves, in particular to a connecting valve used for groove pipe fittings. Background Art

[0002] Grooved pipe fittings are a new type of steel pipe connection fittings, also called clamp connections, which have many advantages. Grooved pipe fitting connection technology, also known as clamp connection technology, has become the first choice for current liquid and gas pipeline connections. During the use of grooved pipe fittings, some of them need to be used with connecting valves.

[0003] During the use of grooved pipe fittings, the environment in which they are used is different. Some of them need to be buried underground for use, so the connecting valves also need to be buried underground. During road reconstruction, or when the lines are damaged or repaired, the valves on the grooved pipe fittings need to be closed, and the valves are buried underground. At this time, it is not convenient to start and stop the valves, which makes it inconvenient to use. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the inventors conducted in-depth research and completed the present utility model after paying a lot of creative work.

[0005] Specifically, the technical problem to be solved by the utility model is: to provide a connecting valve for grooved pipe fittings, so as to solve the technical problem that the current grooved pipe fittings are used in different environments during use, and some of them need to be pre-buried underground for use, so the connecting valves also need to be buried underground. During road reconstruction, or when the lines are damaged or repaired, it is necessary to close the valves on the grooved pipe fittings, and the valves are buried underground. At this time, it is not convenient to start and stop the valves, resulting in inconvenience in use.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A connecting valve for a grooved pipe fitting, comprising a valve body, a vertical bin is welded on the top of the valve body, a valve body is arranged inside the valve body, a valve stem is installed at the control end of the top of the valve body, a concave cavity is opened on the top of the valve stem, an extension rod is installed inside the concave cavity, a rod body protection cover is installed at the top of the valve body, and the rod body protection cover shields and protects the valve stem and the extension rod;

[0008] The extension rod comprises an extension rod, and the extension rod is vertically lifted and lowered inside the concave cavity and is locked.

[0009] As an improved technical solution, the extension rod includes an extension rod that is vertically lifted and lowered inside the concave cavity, a rotating sleeve is sleeved on the upper position of the outer wall of the extension rod, an installation cavity is opened at the top of the extension rod, a locking structure is installed inside the installation cavity, and the clamping end of the locking structure is clamped with the valve stem.

[0010] As an improved technical solution, the locking structure includes two vertical bars that now slide inside the installation cavity, a spring is arranged between the opposite surfaces of the two vertical bars, and a clamping rod is welded to the bottom of the opposite sides of the two vertical bars.

[0011] As an improved technical solution, the locking structure also includes three guide rods welded inside the installation cavity, and the two vertical bars are limitedly slid between the three guide rods, three sliding holes are opened through one side of the vertical bar, and the spring is sleeved on the guide rod in the middle.

[0012] As an improved technical solution, a limiting slideway connected to the concave cavity is provided inside the valve stem and on both sides of the concave cavity, and limiting slide bars sliding inside the limiting slideway are welded on both sides of the extension rod.

[0013] As an improved technical solution, a group of fixing holes connected to the concave cavity are provided inside the valve stem and on the front and rear sides of the concave cavity, and the clamping rod is clamped with the corresponding fixing holes. At the same time, a single group of multiple fixing holes are distributed vertically in the shape of a "1", and connecting holes for the clamping rod to pass through are provided at the lower positions of the front and back sides of the extension rod.

[0014] As an improved technical solution, the rod body protection cover includes a mounting frame welded to the top of the outer wall of the vertical bin, a sliding sleeve is installed on the outer side of the top of the mounting frame, a convex strip is welded on the upper side of the inside of the sliding sleeve, and a blocking block is detachably installed on the top of the convex strip.

[0015] After adopting the above technical solution, the beneficial effects of the utility model are:

[0016] The utility model encloses the valve stem and the extension rod in the interior of the sliding sleeve, plays a protective role for the valve stem and the extension rod, avoids compression during pre-embedding, and causes the valve stem and the extension rod to be unable to rotate later; when the valve needs to be closed, the clamping rod is separated from the internal clamping connection with the fixing hole, and then the extension rod is lifted. When the position of the extension rod is adjusted appropriately, the clamping rod enters the internal clamping connection of the fixing hole under the elastic action of the spring, and the extension rod is clamped and fixed with the valve stem. At this time, the extension rod is rotated by holding the rotating sleeve, which will drive the valve stem to rotate, and then the valve plate at the bottom of the valve stem is rotated to realize the start and stop of the valve, and the overall length of the valve stem and the extension rod can be quickly adjusted. The utility model has strong applicability, is convenient for rapid start and stop in different environments, and is convenient to use; the limiting slide bar performs limiting sliding in the limiting slideway, which can limit the position of the extension rod when entering the concave cavity, which is conducive to ensuring the rapid alignment between the clamping rod and the fixing hole, and on the other hand, the extension rod can also drive the valve stem to rotate when it is rotated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 The utility model is a structural schematic diagram of a connecting valve for grooved pipe fittings.

[0019] Figure 2 The utility model is a structural schematic diagram of a connecting valve for grooved pipe fittings without a rod protection sleeve.

[0020] Figure 3 The utility model is a schematic diagram of a valve stem structure of a connecting valve for a grooved pipe fitting.

[0021] Figure 4 The utility model is a schematic diagram of the structure of an extension rod of a connecting valve for a grooved pipe fitting.

[0022] Figure 5 The utility model is a schematic diagram of a locking structure of a connecting valve for a grooved pipe fitting.

[0023] Figure 6 The utility model is a schematic diagram of the structure of a rod protection sleeve of a connecting valve for a grooved pipe fitting.

[0024] Description of reference numerals:

[0025] 1. Valve body; 2. Vertical bin; 3. Rod protection cover; 31. Mounting frame; 32. Sliding sleeve; 33. Raised strip; 34. Block; 4. Valve stem; 41. Concave cavity; 42. Fixing hole; 43. Limit slideway; 5. Extension rod; 51. Extension rod; 52. Limit slide; 53. Connecting hole; 54. Rotating sleeve; 55. Mounting cavity; 56. Locking structure; 561. Guide rod; 562. Vertical strip; 563. Sliding hole; 564. Spring; 565. Clamping rod. DETAILED DESCRIPTION

[0026] 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 of 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.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0029] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0030] like Figures 1 to 6 As shown together, the utility model provides a connecting valve for grooved pipe fittings, including a valve body 1, a vertical bin 2 is welded on the top of the valve body 1, a valve body is arranged inside the valve body 1, a valve stem 4 is installed at the control end of the top of the valve body, and the valve stem 4 passes through the vertical bin 2. A concave cavity 41 is opened on the top of the valve stem 4, an extension rod 5 is installed inside the concave cavity 41, a rod body protection cover 3 is installed at the top of the valve body 1, and the rod body protection cover 3 shields and protects the valve stem 4 and the extension rod 5;

[0031] The extension rod 5 includes an extension rod 51 , and the extension rod 51 is vertically lifted and lowered inside the concave cavity 41 and is locked.

[0032] According to a connecting valve for grooved pipe fittings according to an embodiment of the utility model, the extension rod 51 and the valve stem 4 are clamped and fixed. At this time, the extension rod 51 is rotated by holding the rotating sleeve 54, which will drive the valve stem 4 to rotate, and then the valve plate at the bottom of the valve stem 4 is rotated to realize the start and stop of the valve. The overall length of the valve stem 4 and the extension rod 5 can be quickly adjusted. It has strong applicability, is convenient for rapid start and stop in different environments, and is easy to use.

[0033] like Figure 2 , Figure 4 As shown together, in this embodiment, the extension rod 5 includes an extension rod 51 which is vertically lifted and lowered inside the concave cavity 41, a rotating sleeve 54 is sleeved on the upper position of the outer wall of the extension rod 51, and an installation cavity 55 is opened at the top of the extension rod 51. A locking structure 56 is installed inside the installation cavity 55, and the clamping end of the locking structure 56 is clamped with the valve stem 4.

[0034] like Figure 4 , Figure 5 As shown together, in this embodiment, the locking structure 56 includes two vertical bars 562 that are now sliding inside the installation cavity 55, and the opposing surfaces of the two vertical bars 562 are flat, and the opposite surfaces are arc-shaped. The top ends of the vertical bars 562 extend to the top of the extension rod 51, and a spring 564 is arranged between the opposing surfaces of the two vertical bars 562. The bottoms of the opposite surfaces of the two vertical bars 562 are welded with clamping rods 565.

[0035] like Figure 4 , Figure 5As shown together, in this embodiment, the locking structure 56 also includes three guide rods 561 welded inside the installation cavity 55, and the two vertical bars 562 are limited to slide between the three guide rods 561, and three sliding holes 563 are opened through one side of the vertical bar 562, and the vertical bar 562 slides on the guide rod 561 through the sliding holes 563, and the spring 564 is sleeved on the middle guide rod 561. When the valve needs to be closed, the block 34 is first disassembled. At this time, the top of the sliding sleeve 32 is in an open state, and the two vertical bars 562 are pushed toward the middle, and the spring 564 is compressed. The space between the two vertical bars 562 is shortened, which drives the clamping rod 565 to disengage from the internal clamping connection with the fixing hole 42. Then, the extension rod 51 is lifted up, and the extension rod 51 can be removed from the concave cavity. The interior of 41 moves upward. When the position of the extension rod 51 is adjusted to a suitable level, the compression state of the spring 564 is released. At this time, the clamping rod 565 may come into contact with the inner wall of the concave cavity 41, and the vertical bar 562 is slowly pulled up. When the clamping rod 565 is facing the fixing hole 42, the clamping rod 565 enters the interior of the fixing hole 42 under the elastic action of the spring 564 to clamp and fix the extension rod 51 to the valve stem 4. At this time, the extension rod 51 is rotated by holding the rotating sleeve 54, which will drive the valve stem 4 to rotate, and then the valve plate at the bottom of the valve stem 4 is rotated to start and stop the valve. The overall length of the valve stem 4 and the extension rod 5 can be quickly adjusted, which has strong applicability, is convenient for quick start and stop in different environments, and is easy to use.

[0036] like Figure 3 and Figure 5 As shown, in this embodiment, the interior of the valve stem 4 and both sides of the concave cavity 41 are provided with limit slides 43 connected to the concave cavity 41, and both sides of the extension rod 51 are welded with limit slides 52 that slide inside the limit slides 43. The limit slides 52 slide within the limit slides 43. On the one hand, the position of the extension rod 51 when entering the concave cavity 41 can be limited, which is conducive to ensuring the rapid alignment between the clamping rod 565 and the fixing hole 42. On the other hand, when the extension rod 51 is rotated, it can also drive the valve stem 4 to rotate.

[0037] like Figure 4 and Figure 5 As shown together, in this embodiment, a group of fixing holes 42 connected to the concave cavity 41 are provided inside the valve stem 4 and on the front and rear sides of the concave cavity 41, and the clamping rod 565 is clamped with the corresponding fixing holes 42. At the same time, a single group of multiple fixing holes 42 are distributed in a vertical "1" shape, and connecting holes 53 for the clamping rod 565 to pass through are provided at the lower position of the front and back sides of the extension rod 51.

[0038] like Figure 1 , Figure 5As shown in common, in the present embodiment, the rod body protection cover 3 includes a mounting frame 31 welded to the top end of the outer wall of the vertical bin 2, a sliding sleeve 32 is installed on the outer side of the top of the mounting frame 31, a convex strip 33 is welded on the upper side of the inner part of the sliding sleeve 32, and a blocking block 34 is detachably installed on the top end of the convex strip 33, and the convex strip 33 and the blocking block 34 are detachably connected by threads. After the valve is installed on the groove pipe fitting, the mounting frame 31 is welded to the vertical bin 2, and the sliding sleeve 32 is installed on the mounting frame 31, and finally the blocking block 34 is detachably installed on the upper surface of the convex strip 33 by bolts. At this time, the valve stem 4 and the extension rod 5 are enclosed in the interior of the sliding sleeve 32, which plays a protective role on the valve stem 4 and the extension rod 5, and avoids compression thereof during pre-embedding, which makes it impossible to rotate later. At the same time, the top of the blocking block 34 is left empty during pre-embedding, and the upper surface of the blocking block 34 is flush with the road surface.

[0039] It should be understood that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the protection scope defined by the claims attached to this application.

Claims

1. A connecting valve for a grooved pipe, comprising a valve body, a vertical bin is welded on the top of the valve body, and a valve body is arranged inside the valve body, characterized in that: A valve stem is installed at the control end of the top of the valve body, a concave cavity is opened at the top of the valve stem, an extension rod is installed inside the concave cavity, a rod body protection cover is installed at the top of the valve body, and the rod body protection cover shields and protects the valve stem and the extension rod; The extension rod comprises an extension rod, and the extension rod is vertically lifted and lowered inside the concave cavity and is locked.

2. A connecting valve for grooved pipe fittings according to claim 1, characterized in that: The extension rod includes an extension rod that is lifted and lowered vertically inside the concave cavity, a rotating sleeve is sleeved on the upper position of the outer wall of the extension rod, an installation cavity is opened at the top of the extension rod, a locking structure is installed inside the installation cavity, and the clamping end of the locking structure is clamped with the valve stem.

3. A connecting valve for grooved pipe fittings according to claim 2, characterized in that: The locking structure comprises two vertical bars which are now slidable inside the installation cavity, a spring is arranged between the opposite surfaces of the two vertical bars, and a clamping rod is welded to the bottom of the opposite surfaces of the two vertical bars.

4. A connecting valve for grooved pipe fittings according to claim 3, characterized in that: The locking structure also includes three guide rods welded inside the installation cavity, and the two vertical bars are limitedly slid between the three guide rods, three sliding holes are opened through one side of the vertical bar, and the spring is sleeved on the guide rod in the middle.

5. A connecting valve for grooved pipe fittings according to claim 4, characterized in that: The inside of the valve stem and on both sides of the concave cavity are provided with limiting slideways connected to the concave cavity, and both sides of the extension rod are welded with limiting slide bars sliding inside the limiting slideways.

6. A connecting valve for grooved pipe fittings according to claim 5, characterized in that: A group of fixing holes connected to the concave cavity are provided inside the valve stem and on the front and rear sides of the concave cavity, and the clamping rod is clamped with the corresponding fixing holes. At the same time, a single group of multiple fixing holes are distributed in a vertical "1" shape, and connecting holes for the clamping rod to pass through are provided at the lower positions of the front and back sides of the extension rod.

7. A connecting valve for grooved pipe fittings according to claim 6, characterized in that: The rod body protection cover comprises a mounting frame welded to the top of the outer wall of the vertical bin, a sliding sleeve is installed on the outer side of the top of the mounting frame, a convex strip is welded on the upper side of the inside of the sliding sleeve, and a blocking block is detachably installed on the top of the convex strip.

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