A valve well PE ball valve key

Abstract

The utility model belongs to the field of ball valve keys, specifically a valve well PE ball valve key, comprising a telescopic connecting rod, the top and bottom of the telescopic connecting rod are respectively fixedly connected with a first connecting head and a second connecting head, the bottom of the second connecting head is provided with a key end, one side of the first connecting head is provided with an insertion groove, the inner movably sleeve of the insertion groove is provided with a lever rod, the first connecting head is provided with a fixing mechanism, and the lever rod is provided with an adjusting mechanism; by providing the fixing mechanism, when installing the lever rod, by pulling up a pull plate, the fixing rod can be separated from the inside of the first fixing groove, the lever rod can be inserted into the insertion groove, and then the pull plate can be released, and under the action of the spring reset force, the fixing rod can be moved downward and inserted into the first fixing groove, so that the lever rod can be limited, thereby increasing the stability of the connection between the first connecting head and the lever rod.

Description

Technical Field

[0001] The utility model relates to the field of ball valve keys, in particular to a valve well PE ball valve key. Background Art

[0002] The valve well PE ball valve key is a tool used to open or close the PE ball valve in the valve well. At present, the length of the valve well PE ball valve key can generally be adjusted to suit the use in different valve well environments. At the same time, a lever is generally provided on the valve well PE ball valve key to reduce the difficulty of opening or closing the PE ball valve in the valve well through the principle of lever.

[0003] After searching, a Chinese patent with announcement number CN215576345U discloses a multi-purpose valve well PE ball valve key, including a first key end, a second key end, a telescopic connecting rod, and a lever. By respectively installing the first key end and the second key end at the two ends of the telescopic connecting rod, the diversity of options for selecting the valve well key can be increased. The lever can facilitate the staff to quickly and conveniently open and close the ball valve when opening and closing the ball valve.

[0004] At present, there are still certain deficiencies in the use of the valve well PE ball valve key. For example, when relaying, the lever is directly inserted into the insertion groove at the top of the valve well PE ball valve key, and no fixed structure is set between the lever and the valve well PE ball valve key. According to the lever principle, F1·L1=F2·L2. In order to reduce the difficulty of opening or closing the PE ball valve in the valve well, the force required to be applied can be reduced by increasing the length of one end for applying the rotational force. Therefore, the other end of the lever can be extremely close to the position of the connector, which will cause one end of the lever to easily detach from the insertion groove at the top of the valve well PE ball valve key when the rotational force is applied to the lever, resulting in poor safety. If the other end of the lever is far away from the position of the connector, it will increase the difficulty of opening or closing the PE ball valve in the valve well. In view of the above problems, a valve well PE ball valve key is proposed. Utility Model Content

[0005] In order to make up for the shortcomings of the prior art, the lever is easily disengaged from the insertion groove and the length of the lever is inconvenient to adjust, the utility model provides a valve well PE ball valve key.

[0006] The technical solution adopted by the utility model to solve the technical problem is: a valve well PE ball valve key, including a telescopic connecting rod, the top and the bottom of the telescopic connecting rod are respectively fixedly connected with a first connecting head and a second connecting head, the bottom of the second connecting head is provided with a key end head, one side of the first connecting head is provided with an insertion groove, the inner part of the insertion groove is movably sleeved with a lever rod, the first connecting head is provided with a fixing mechanism, the lever rod is provided with an adjusting mechanism, and the connection between the second connecting head and the key end head is provided with a disassembly mechanism;

[0007] The fixing mechanism includes a plurality of first fixing grooves, which are equidistantly arranged on the outside of the lever rod; a cavity rod is fixedly connected to the upper surface of the first connecting head; a fixing rod is movably sleeved on the bottom end of the cavity rod; the diameter of the fixing rod matches the diameter of the first fixing groove; a connecting groove is arranged on the upper surface of the first connecting head; the fixing rod is movably sleeved inside the connecting groove; a linkage plate and a spring are arranged inside the cavity rod; two ends of the spring are respectively connected to the upper surface of the linkage plate and the inner top end of the cavity rod; the linkage plate is fixedly sleeved on the fixing rod; and the linkage plate is slidably sleeved inside the cavity rod.

[0008] Preferably, the adjustment mechanism includes a first connecting rod, a threaded rod and a second connecting rod, one end of the threaded rod is connected to the second connecting rod, one end of the first connecting rod is provided with a first thread groove, and the threaded rod is threadedly connected to the first connecting rod through the first thread groove.

[0009] Preferably, a plurality of the first fixing grooves are equidistantly arranged on the first connecting rod, and the cross-sectional areas of the first connecting rod and the second connecting rod in a side view are equal.

[0010] Preferably, one end of the fixing rod away from the telescopic connecting rod passes through the outer side of the top end of the cavity rod, and the top end of the fixing rod is fixedly connected with a pull plate.

[0011] Preferably, the disassembly mechanism includes a special-shaped block, which is fixedly connected to the top of the key end, a special-shaped groove is provided on the lower surface of the second connecting head, a second threaded groove is provided on one side of the second connecting head, a second fixing groove is provided on the outer side of the special-shaped block, and a bolt is connected to the internal thread of the second threaded groove.

[0012] Preferably, the bottom of the bolt passes through the interior of the second fixing groove, the bolt and the second fixing groove are movably connected, and the cross-sectional area values ​​of the special-shaped block and the special-shaped groove when viewed from above are equal.

[0013] Preferably, a guide plate is fixedly connected to the outer side of the special-shaped block, and a guide groove matched with the guide plate is formed on the lower surface of the second connecting head, and the guide groove and the special-shaped groove are interconnected.

[0014] The utility model is beneficial in that:

[0015] 1. The utility model provides a fixing mechanism, and when installing the lever rod, the pull plate can be pulled up to make the fixing rod disengage from the first fixing groove, and the lever rod can be inserted into the insertion groove, and then the pull plate can be released. Under the action of the spring return force, the fixing rod can be moved downward and inserted into the first fixing groove, so that the lever rod can be limited, thereby increasing the stability of the connection between the first connector and the lever rod;

[0016] 2. The utility model provides an adjustment mechanism, which can drive the threaded rod to rotate inside the first threaded groove by rotating the second connecting rod, thereby increasing the length between the second connecting rod and the first connecting rod. The increased length can reduce the force required for rotation, thereby reducing the difficulty of opening or closing the PE ball valve in the valve well. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0020] Figure 3 For the utility model Figure 2 Schematic diagram of the structure at A in the middle;

[0021] Figure 4 It is a schematic diagram of the exploded structure of the disassembly mechanism of the utility model.

[0022] In the figure: 1. telescopic connecting rod; 2. first connecting head; 3. second connecting head; 4. key end; 5. insertion slot; 6. lever; 7. fixing mechanism; 71. first fixing slot; 72. cavity rod; 73. fixing rod; 74. linkage plate; 75. spring; 76. pull plate; 77. connecting slot; 8. adjusting mechanism; 81. first connecting rod; 82. threaded rod; 83. first threaded slot; 84. second connecting rod; 9. disassembly mechanism; 91. special-shaped block; 92. special-shaped slot; 93. second threaded slot; 94. second fixing slot; 95. bolt; 96. guide plate; 97. guide slot. DETAILED DESCRIPTION

[0023] 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.

[0024] The following is combined with Figure 1-4 To further explain this application in detail,

[0025] The present application embodiment discloses a valve well PE ball valve key. Figure 1 , Figure 2 , Figure 3 and Figure 4 A valve well PE ball valve key comprises a telescopic connecting rod 1, the top and bottom of the telescopic connecting rod 1 are respectively fixedly connected with a first connecting head 2 and a second connecting head 3, a key end 4 is arranged at the bottom of the second connecting head 3, an insertion groove 5 is opened on one side of the first connecting head 2, a lever rod 6 is movably sleeved inside the insertion groove 5, a fixing mechanism 7 is arranged on the first connecting head 2, an adjusting mechanism 8 is arranged on the lever rod 6, and a disassembly mechanism 9 is arranged at the connection between the second connecting head 3 and the key end 4;

[0026] The fixing mechanism 7 includes a plurality of first fixing grooves 71, and the plurality of first fixing grooves 71 are equidistantly arranged on the outside of the lever 6. A cavity rod 72 is fixedly connected to the upper surface of the first connector 2, and a fixing rod 73 is movably sleeved at the bottom end of the cavity rod 72. The diameter of the fixing rod 73 matches the diameter of the first fixing groove 71. A connecting groove 77 is arranged on the upper surface of the first connector 2, and the fixing rod 73 is movably sleeved inside the connecting groove 77. A linkage plate 74 and a spring 75 are arranged inside the cavity rod 72, and the two ends of the spring 75 are respectively The upper surface of the linkage plate 74 is connected to the inner top of the cavity rod 72, the linkage plate 74 is fixedly sleeved with the fixing rod 73, and the linkage plate 74 is slidably sleeved inside the cavity rod 72. By setting the fixing mechanism 7, the lever rod 6 can be limited after being inserted into the insertion groove 5, so as to avoid the lever rod 6 from being separated from the insertion groove 5 when levering. By setting the adjusting mechanism 8, the length value of the lever rod 6 can be adjusted. By setting the disassembly mechanism 9, the key end 4 can be easily disassembled and replaced.

[0027] Reference Figure 2 and Figure 3 The adjusting mechanism 8 includes a first connecting rod 81, a threaded rod 82 and a second connecting rod 84. One end of the threaded rod 82 is connected to the second connecting rod 84. A first thread groove 83 is provided at one end of the first connecting rod 81. The threaded rod 82 is threadedly connected to the first connecting rod 81 through the first thread groove 83. A plurality of first fixing grooves 71 are equidistantly provided on the first connecting rod 81. The cross-sectional area values ​​of the first connecting rod 81 and the second connecting rod 84 when viewed from the side are equal. When in use, by rotating the second connecting rod 84, the threaded rod 82 is driven to rotate inside the first thread groove 83, so that the length between the second connecting rod 84 and the first connecting rod 81 can be increased. According to the formula of the lever principle, F1·L1=F2·L2, it can be known that by increasing the length, the force required for rotation can be reduced, thereby reducing the difficulty of opening or closing the PE ball valve in the valve well.

[0028] Reference Figure 3 The end of the fixing rod 73 away from the telescopic connecting rod 1 passes through the outer side of the top end of the cavity rod 72, and the top end of the fixing rod 73 is fixedly connected to a pull plate 76. By setting the pull plate 76, it is convenient to pull the fixing rod 73 upward, and then it is convenient to pull the lever rod 6 out from the inside of the insertion groove 5.

[0029] Reference Figure 4The disassembly mechanism 9 includes a special-shaped block 91, which is fixedly connected to the top of the key end 4, a special-shaped groove 92 is provided on the lower surface of the second connecting head 3, a second threaded groove 93 is provided on one side of the second connecting head 3, a second fixing groove 94 is provided on the outer side of the special-shaped block 91, and a bolt 95 is sleeved on the internal thread of the second threaded groove 93; the bottom of the bolt 95 passes through the inside of the second fixing groove 94, and the bolt 95 and the second fixing groove 94 are movably sleeved, and the cross-sectional area values ​​of the special-shaped block 91 and the special-shaped groove 92 when viewed from above are equal. By such an arrangement, when the key end 4 is installed, the special-shaped block 91 at the top of the key end 4 can be inserted into the inside of the special-shaped groove 92, and then the bolt 95 is spirally inserted into the inner wall of the second threaded groove 93 and passes through the second fixing groove 94, so that the key end 4 can be fixed, and at the same time, the bolt 95 and the second fixing groove 94 are movably sleeved, so as to facilitate the insertion of the bolt 95 into the second fixing groove 94.

[0030] Reference Figure 4 A guide plate 96 is fixedly connected to the outer side of the special-shaped block 91, and a guide groove 97 adapted to the guide plate 96 is provided on the lower surface of the second connecting head 3. The guide groove 97 and the special-shaped groove 92 are interconnected. By providing the guide plate 96 and the guide groove 97, the special-shaped block 91 can be limited when inserted into the special-shaped groove 92, thereby facilitating the insertion of the bolt 95.

[0031] Working principle: When in use, first pull the pull plate 76 upward to drive the fixing rod 73 and the linkage plate 74 to move upward synchronously, and at the same time make the spring 75 contract until the fixing rod 73 is out of the first fixing groove 71, and then insert the lever rod 6 into the insertion groove 5, and adjust the insertion length of the lever rod 6 according to the force required to open or close the PE ball valve in the valve well. When the lever rod 6 is inserted, release the pull plate 76, and under the action of the restoring force of the spring 75, the fixing rod 73 can be moved downward and inserted into the first fixing groove 71, so that the lever rod 6 can be limited. By limiting the lever rod 6, it is possible to prevent one end of the lever rod 6 from falling off the insertion groove 5 when it is close to the first connector 2, thereby increasing the stability during the levering process; in addition, by rotating the second connecting rod 84, the threaded rod 82 is driven to rotate inside the first threaded groove 83, thereby increasing the length between the second connecting rod 84 and the first connecting rod 81. According to the formula of the lever principle, F1·L1=F2·L2, it can be known that by increasing the length, the force required for rotation can be reduced, thereby reducing the difficulty of opening or closing the PE ball valve in the valve well.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A valve well PE ball valve key, characterized by: The telescopic connecting rod (1) comprises a first connecting head (2) and a second connecting head (3) which are fixedly connected at the top and bottom of the telescopic connecting rod (1) respectively, a key end (4) is arranged at the bottom of the second connecting head (3), an insertion groove (5) is provided on one side of the first connecting head (2), a lever rod (6) is movably sleeved inside the insertion groove (5), a fixing mechanism (7) is arranged on the first connecting head (2), an adjusting mechanism (8) is arranged on the lever rod (6), and a disassembly mechanism (9) is arranged at the connection between the second connecting head (3) and the key end (4); The fixing mechanism (7) comprises a plurality of first fixing grooves (71), wherein the plurality of first fixing grooves (71) are equidistantly arranged on the outer side of the lever rod (6); a cavity rod (72) is fixedly connected to the upper surface of the first connecting head (2); a fixing rod (73) is movably sleeved at the bottom end of the cavity rod (72); a diameter value of the fixing rod (73) matches a diameter value of the first fixing groove (71); a connecting groove (77) is arranged on the upper surface of the first connecting head (2); the fixing rod (73) is movably sleeved inside the connecting groove (77); a linkage plate (74) and a spring (75) are arranged inside the cavity rod (72); two ends of the spring (75) are respectively connected to the upper surface of the linkage plate (74) and the inner top end of the cavity rod (72); the linkage plate (74) is fixedly sleeved with the fixing rod (73); and the linkage plate (74) is slidably sleeved inside the cavity rod (72).

2. A valve well PE ball valve key according to claim 1, characterized in that: The adjusting mechanism (8) comprises a first connecting rod (81), a threaded rod (82) and a second connecting rod (84); one end of the threaded rod (82) is connected to the second connecting rod (84); one end of the first connecting rod (81) is provided with a first thread groove (83); and the threaded rod (82) is threadedly connected to the first connecting rod (81) via the first thread groove (83).

3. A valve well PE ball valve key according to claim 2, characterized in that: A plurality of the first fixing grooves (71) are equidistantly arranged on the first connecting rod (81); the cross-sectional areas of the first connecting rod (81) and the second connecting rod (84) are equal in side view.

4. A valve well PE ball valve key according to claim 1, characterized in that: One end of the fixing rod (73) away from the telescopic connecting rod (1) passes through the outer side of the top end of the cavity rod (72), and the top end of the fixing rod (73) is fixedly connected to a pull plate (76).

5. A valve well PE ball valve key according to claim 1, characterized in that: The disassembly mechanism (9) comprises a special-shaped block (91), the special-shaped block (91) is fixedly connected to the top of the key end (4), a special-shaped groove (92) is provided on the lower surface of the second connecting head (3), a second thread groove (93) is provided on one side of the second connecting head (3), a second fixing groove (94) is provided on the outer side of the special-shaped block (91), and a bolt (95) is sleeved on the internal thread of the second thread groove (93).

6. A valve well PE ball valve key according to claim 5, characterized in that: The bottom of the bolt (95) passes through the interior of the second fixing groove (94), the bolt (95) and the second fixing groove (94) are movably connected, and the cross-sectional area values ​​of the special-shaped block (91) and the special-shaped groove (92) when viewed from above are equal.

7. A valve well PE ball valve key according to claim 5, characterized in that: A guide plate (96) is fixedly connected to the outer side of the special-shaped block (91), and a guide groove (97) adapted to the guide plate (96) is provided on the lower surface of the second connecting head (3), and the guide groove (97) and the special-shaped groove (92) are interconnected.

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