CN111089196A - Valve opening and closing tool - Google Patents

Valve opening and closing tool Download PDF

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Publication number
CN111089196A
CN111089196A CN201811246592.XA CN201811246592A CN111089196A CN 111089196 A CN111089196 A CN 111089196A CN 201811246592 A CN201811246592 A CN 201811246592A CN 111089196 A CN111089196 A CN 111089196A
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China
Prior art keywords
sleeve
ratchet
groove
pin
hole
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Granted
Application number
CN201811246592.XA
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Chinese (zh)
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CN111089196B (en
Inventor
刘洪林
王春洁
陈志伟
何大江
刘大华
刘建涛
王爱法
曾庆伟
兰成刚
雷小荣
颜昌凤
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Petrochina Co Ltd
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Petrochina Co Ltd
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Priority to CN201811246592.XA priority Critical patent/CN111089196B/en
Publication of CN111089196A publication Critical patent/CN111089196A/en
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Publication of CN111089196B publication Critical patent/CN111089196B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/60Handles
    • F16K31/602Pivoting levers, e.g. single-sided

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

The invention discloses a valve opening and closing tool, and belongs to the technical field of valves. The valve opening and closing tool includes: ratchet spanner mechanism and box mechanism, box mechanism include screens sleeve and fixed sleeve. When the valve needs to be opened and closed, the clamping sleeve is sleeved on the screw rod of the valve, the fixing sleeve is sleeved on the clamping sleeve, and the supporting columns on the hand wheel are limited in the gaps between the two adjacent first tooth claws through the second tooth claws, so that the clamping sleeve is prevented from sliding off the hand wheel to hurt operators during the opening and closing operation of the valve. Then, fix ratchet wrench mechanism at the telescopic second end of screens, like this, the operating personnel can both hands hold ratchet wrench mechanism's the other end and carry out clockwise or anticlockwise rotation, and then drive screens sleeve and hand wheel and take place synchronous rotation to the realization is to the switching operation of valve, has avoided in the switching operation of valve, and the operating personnel is inconvenient to apply the condition of effort.

Description

Valve opening and closing tool
Technical Field
The invention relates to the technical field of valves, in particular to a valve opening and closing tool.
Background
At present, when construction operations such as wellhead flow reversal, maintenance, well washing or dosing are carried out on an oil-gas well, the operation of opening and closing a gate installed on the wellhead of the oil-gas well is required. However, because the valves are all located outdoors, after the valves are blown by wind and rain for a long time, the hand wheels and the lead screws of the gate valves are easily corroded, and in addition, when oil and water flow through the valves, the lead screws inside the valves are easily scaled and corroded. Thereby causing the valve to be difficult to open and close by the hand wheel alone.
In the related art, an F wrench is generally used to assist in opening and closing the valve. Specifically, the head of the F wrench is clamped in a gap between two adjacent supporting columns on the hand wheel, and meanwhile, the handle of the F wrench is parallel to the plane where the hand wheel is located, so that the gate is opened and closed through the F.
The designer finds that the related art has at least the following technical problems:
when an operator applies force to the F wrench, the head of the F wrench is easy to slip off from a support column on a hand wheel, at the moment, the operator needs to hold the head of the F wrench with one hand, and the other hand applies acting force through a handle of the F wrench, so that the operator is inconvenient to apply acting force. In addition, when an operator applies an acting force to the handle of the F wrench, the F wrench is easily twisted and falls off due to improper operation, and thus the operator is injured.
Disclosure of Invention
The invention provides a valve opening and closing tool which can solve the problems that an operator is inconvenient to apply acting force in the opening and closing operation of a valve and the operator is possibly injured. The technical scheme is as follows:
the present invention provides a valve switching tool, comprising: the ratchet wrench comprises a ratchet wrench mechanism and a sleeve mechanism, wherein the sleeve mechanism comprises a clamping sleeve and a fixing sleeve;
the clamping sleeve is of a cylindrical structure with openings at two ends and steps, the outer diameter of the first end of the clamping sleeve is larger than that of the second end of the clamping sleeve, a plurality of first tooth claws extend axially from the end face of the first end of the clamping sleeve, and the second end of the clamping sleeve is detachably and fixedly connected with the ratchet wrench mechanism;
the terminal surface of fixed sleeve's first end is provided with a plurality of second tooth claws along axial extension, the terminal surface of fixed sleeve's second end is along radially being provided with the enstrophe edge, the internal diameter on enstrophe edge is less than the external diameter of first end just is greater than the external diameter of second end on the screens sleeve, the fixed sleeve cover is in on the screens sleeve, just a plurality of second tooth claws are used for spacing the clearance between two adjacent first tooth claws with the pillar on the hand wheel.
In a possible implementation manner, a first groove is formed in the outer wall of the first end of the clamping sleeve along the circumferential direction, a first through hole is radially formed in the position, corresponding to the first end of the first groove, on the fixing sleeve, and a threaded hole is formed in the side surface of the first through hole;
the sleeve mechanism further comprises a fixing pin arranged at the second end of the first groove, a fixing bolt fixed in the threaded hole and a tension spring, wherein the two ends of the tension spring are fixedly connected with the fixing pin and the fixing bolt respectively.
Optionally, the sleeve mechanism further includes a first limit pin disposed on an outer side surface of the at least one first tooth claw, and the first limit pin is configured to prevent the fixed sleeve from rotating.
Optionally, a second through hole is radially formed in the fixing sleeve, and a limiting groove is formed in the position, corresponding to the second through hole, of the clamping sleeve;
the sleeve mechanism further comprises a second limiting pin which penetrates through the second through hole, and one end of the second limiting pin is located in the limiting groove.
Optionally, a second groove is formed in the outer wall of the second end of the clamping sleeve along the circumferential direction;
the sleeve mechanism further comprises a first clamp spring arranged in the second groove, and the first clamp spring is used for limiting the inward turning edge.
Optionally, the ratchet wrench mechanism comprises: the ratchet wheel is reversible, the ratchet wheel outer sleeve is sleeved with the ratchet wheel outer sleeve, the toggle pin is arranged on the ratchet wheel outer sleeve, and the handle is arranged on the ratchet wheel outer sleeve;
the reversible ratchet wheel and the ratchet wheel outer sleeve are of a cylindrical structure with two open ends, the reversible ratchet wheel is detachably sleeved at the second end of the clamping sleeve, the ratchet wheel outer sleeve is sleeved on the reversible ratchet wheel, the ratchet wheel outer sleeve and the reversible ratchet wheel can rotate relatively, and a third through hole is formed in the ratchet wheel outer sleeve along the radial direction;
the first end of the toggle pin penetrates through the third through hole and is meshed with the tooth groove of the reversible ratchet wheel, and one end of the handle is detachably fixed on the ratchet wheel outer sleeve.
Optionally, the ratchet wrench mechanism further comprises: the device comprises a sleeve, a pressure spring and a cover cap;
a boss is arranged on the side face of the first end of the poking pin and clamped on the outer wall of the ratchet wheel outer sleeve, and the second end of the poking pin sequentially penetrates through the sleeve, the pressure spring and the cap;
the first end of the sleeve is fixedly communicated with the third through hole, the inner diameter of the sleeve is larger than the aperture of the second through hole, and the second end of the sleeve is fixedly connected with the cap.
Optionally, the cross section of the second end of the clamping sleeve is polygonal, and a first clamping groove is formed in the outer wall of the second end of the clamping sleeve along the circumferential direction; the inner wall of the reversible ratchet wheel forms a structure matched with the second end of the clamping sleeve, and a second clamping groove is formed in the circumferential direction;
the ratchet wrench mechanism further comprises a second clamp spring, and the second clamp spring is located in a circular groove formed by the first clamping groove and the second clamping groove.
Optionally, the handle comprises a fixed rod and a telescopic rod;
the ratchet wheel outer sleeve is provided with an insertion hole, one end of the fixing rod extends into the insertion hole, and the other end of the fixing rod is in pin joint with one end of the telescopic rod.
Optionally, each second tooth claw is L-shaped or T-shaped.
The technical scheme provided by the invention at least has the following beneficial effects:
according to the invention, the clamping sleeve is sleeved on the screw rod of the valve, the fixing sleeve is sleeved on the clamping sleeve, and the support column on the hand wheel is limited in the gap between two adjacent first tooth claws through the plurality of second tooth claws, so that the clamping sleeve is prevented from sliding off the hand wheel to cause injury to operators during the operation of opening and closing the valve. Then, fix ratchet wrench mechanism at the telescopic second end of screens, like this, the operating personnel can both hands hold ratchet wrench mechanism's the other end and carry out clockwise or anticlockwise rotation, and then drive screens sleeve and hand wheel and take place synchronous rotation to the realization is to the switching operation of valve, has avoided in the switching operation of valve, and the operating personnel is inconvenient to apply the condition of effort.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of a valve opening and closing tool according to an embodiment of the present invention;
FIG. 2 is a schematic view of a capture sleeve according to an embodiment of the present invention;
FIG. 3 is a schematic view of a fixing sleeve according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of another valve opening and closing tool in accordance with an embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of a valve opening and closing tool according to another embodiment of the present invention.
Reference numerals:
1: a ratchet wrench mechanism; 11: a reversible ratchet; 12: a ratchet wheel outer sleeve; 13: a toggle pin; 14: a handle; 141: fixing the rod; 142: a telescopic rod; 15: a sleeve; 16: a pressure spring; 17: capping;
2: a clamping sleeve; 21: a first tooth claw; 22: a first groove; 23: a first limit pin; 24: a second groove;
3: fixing the sleeve; 31: a second tooth claw; 32: a first through hole;
4: a fixing pin; 5: fixing the bolt; 6: a tension spring; 7: a first clamp spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 illustrates a schematic structural view of a valve opening and closing tool according to an embodiment of the present invention, fig. 2 illustrates a schematic structural view of a capture sleeve according to an embodiment of the present invention, and fig. 3 illustrates a schematic structural view of a fixing sleeve according to an embodiment of the present invention. As shown in fig. 1, fig. 2 and fig. 3, the valve opening and closing tool comprises a ratchet wrench mechanism 1 and a sleeve mechanism, wherein the sleeve mechanism comprises a clamping sleeve 2 and a fixing sleeve 3; the clamping sleeve 2 is of a cylindrical structure with openings at two ends and steps, the outer diameter of the first end of the clamping sleeve 2 is larger than that of the second end, a plurality of first tooth claws 21 extend axially from the end face of the first end of the clamping sleeve 2, and the second end of the clamping sleeve 2 is detachably and fixedly connected with the ratchet wrench mechanism 1; the terminal surface of the first end of fixed sleeve 3 is provided with a plurality of second tooth claws 31 along axial extension, and the terminal surface of the second end of fixed sleeve 3 radially is provided with the enstrophe edge, and the internal diameter on enstrophe edge is less than the external diameter of first end on the screens sleeve 2 and is greater than the external diameter of second end, and fixed sleeve 3 overlaps on screens sleeve 2, and a plurality of second tooth claws 31 are used for spacing the clearance between two adjacent first tooth claws 21 with the pillar on the hand wheel.
In the embodiment of the invention, when the valve needs to be opened and closed, the clamping sleeve 2 is sleeved on the screw rod of the valve, the support column on the hand wheel is clamped in the gap between two adjacent first tooth claws 21 through the first tooth claws 21, then the fixing sleeve 3 is sleeved on the clamping sleeve 2, and the support column on the hand wheel is limited in the gap between two adjacent first tooth claws 21 through the second tooth claws 31, so that the damage to operators caused by the fact that the clamping sleeve 2 slides off the hand wheel when the valve is opened and closed is avoided. Afterwards, fix ratchet wrench mechanism 1 at the second end of screens sleeve 2, like this, the operating personnel can two hand the other end of ratchet wrench mechanism 1 carry out clockwise or anticlockwise rotation, and then drive screens sleeve 2 and hand wheel and take place synchronous rotation to the realization is to the switching operation of valve, has avoided in the switching operation of valve, and the operating personnel is inconvenient to apply the condition of effort.
The width of the gap between two adjacent first claws 21 is slightly larger than the width of the support column on the hand wheel, so that the relative shaking between the clamping sleeve 2 and the hand wheel is avoided when the clamping sleeve 2 drives the hand wheel to rotate. The first claws 21 can be distributed uniformly in the circumferential direction of the detent sleeve 2. For example, three support columns are arranged between the circular ring handrail and the central point of the hand wheel, the end face of the first end of the clamping sleeve 2 can be extended to form three first tooth claws 21, the three first tooth claws 21 are uniformly distributed along the circumferential direction of the clamping sleeve 2, three first tooth claws 21 form three gaps, and each gap corresponds to one support column. In this way, each strut can be captured in a corresponding gap. Of course, five, six or seven first claws 21 may also be provided to extend from the end surface of the first end of the position-retaining sleeve 2, so that the valve opening and closing tool can be applied to valves with different numbers of pillars on the hand wheel, which is not limited in the embodiment of the present invention.
The second end of the blocking sleeve 2 and one end of the ratchet wrench mechanism 1 may be fixedly connected through a buckle, or through a preset structure matching with each other, as long as the blocking sleeve 2 can rotate synchronously when the ratchet wrench mechanism 1 is rotated, which is not limited in the embodiment of the present invention. For example, the second end of screens sleeve 2 is eight prismatic structures, and the one end of ratchet wrench mechanism 1 is provided with eight prismatic through-holes along the direction of perpendicular to with length, can overlap the eight prismatic through-holes that the one end of ratchet wrench mechanism 1 set up at the second end of screens sleeve 2 like this to realize the fixed connection of the second end of screens sleeve 2 and the one end of ratchet wrench mechanism 1.
In the embodiment of the present invention, when the pillars on the hand wheel are limited in the gaps between two adjacent first claws 21 by the plurality of second claws 31, as shown in fig. 1, each second claw 31 may have an L shape, and of course, each second claw 31 may also have a T shape, as long as each second claw 31 is provided with a protruding portion along the circumferential direction, and the protruding portion can close the gap between two adjacent first claws 21, which is not limited in the embodiment of the present invention.
When the pillars on the handwheel are limited by the second claws 31, in a possible implementation manner, the fixing sleeve 3 can be provided with second through holes along the radial direction, the position, corresponding to the second through holes, of the clamping sleeve 2 is provided with a limiting groove, and the sleeve mechanism further comprises a second limiting pin which penetrates through the second through holes and one end of which is positioned in the limiting groove.
When the second tooth claw 31 closes the gap between two adjacent first tooth claws 21, the limiting groove on the clamping sleeve 2 is arranged at a position corresponding to the first through hole 32, that is, when one end of the second limiting pin passes through the first through hole 32 and is located in the limiting groove, the second tooth claws 31 can limit the strut on the hand wheel at the gap between two adjacent first tooth claws 21. The second limiting pin can be in clearance contact with the second through hole and the limiting groove and can be connected in a threaded connection mode, so that the second limiting pin and the second through hole can be connected together in the dismounting process, and the phenomenon that the second limiting pin is lost or falls off from the second through hole and the limiting groove due to the fact that the size of the second limiting pin is small is avoided.
Based on the above setting, after the pillar on the clearance alignment hand wheel between two adjacent second tooth claws 31, overlap fixed sleeve 3 on screens sleeve 2, rotatory fixed sleeve 3 again, with go up along the protruding part of circumferencial direction on a plurality of second tooth claws 31 to the clearance between two adjacent first tooth claws 21 is closed, with spacing the clearance between two adjacent first tooth claws 21 with the pillar on the hand wheel, fix fixed sleeve 3 and screens sleeve 2 through the second spacer pin simultaneously, thereby avoid fixed sleeve 3 to take place the rotation, lead to screens sleeve 2 from the hand wheel landing.
Of course, in another possible implementation manner, as shown in fig. 2 and 3, the outer wall of the first end of the locking sleeve 2 is provided with a first groove 22 along the circumferential direction, the position of the fixing sleeve 3 corresponding to the first end of the first groove 22 is provided with a first through hole 32 along the radial direction, and the side surface of the first through hole 32 is provided with a threaded hole. As shown in fig. 4, the sleeve mechanism further includes a fixing pin 4 disposed at the second end of the first groove 22, a fixing bolt 5 fixed in the threaded hole, and a tension spring 6 having two ends fixedly connected to the fixing pin 4 and the fixing bolt 5, respectively.
Wherein, because the sectional area of first through-hole 32 is less, in order to facilitate installing fixing bolt 5 in the screw hole, this screw hole can run through to the first side of first through-hole 32 along the terminal surface of the second end of fixing sleeve 3, and then can follow the terminal surface installation fixing bolt 5 of the second end of fixing sleeve 3. Of course, the threaded hole may also penetrate to a second side surface opposite to the first side surface, so as to facilitate screwing the fixing bolt 5 onto the second side surface, thereby preventing the tension spring 6 connected to the fixing bolt 5 from slipping off. The height of the fixing pin 4 can be equal to the depth of the first groove 22, so that the tension spring 6 is prevented from slipping off the fixing pin 4, or the fixing pin 4 protrudes out of the first groove 22, so that the fixing sleeve 3 is difficult to be sleeved on the clamping sleeve 2.
Based on the above arrangement, since the clamping sleeve 2 and the fixing sleeve 3 are connected through the tension spring 6, and the tension spring 6 is arranged along the circumferential direction, the clamping sleeve 2 and the fixing sleeve 3 are integrated as a whole and can only rotate along the circumferential direction. At this time, the fixing sleeve 3 is manually rotated to enable the tension spring 6 to be in a stretching state or a compressing state, when a gap between two adjacent second tooth claws 31 coincides with a gap between two adjacent first tooth claws 21, that is, when the gap between two adjacent first tooth claws 21 is opened, the fixing sleeve 3 and the clamping sleeve 2 are sleeved on a lead screw of the valve, and a strut on a hand wheel is clamped in the gap between two adjacent first tooth claws 21. After the fixing sleeve 3 is loosened, the fixing sleeve 3 can rotate under the elastic action of the tension spring 6, so that the gap between two adjacent first claws 21 is closed through the extension parts of the second claws 31 in the circumferential direction, and the strut on the hand wheel is limited in the gap between two adjacent first claws 21. After the gaps between two adjacent first claws 21 are closed by the extending parts of the plurality of second claws 31 in the circumferential direction, the tension spring 6 can be in a tension state or a compression state in order to ensure that the fixing sleeve 3 cannot rotate, and the part of the second claws 31 connected with the fixing sleeve 3 is limited by the support columns on the hand wheel, so that the fixing sleeve 3 is limited under the combined action of the tension spring 6 and the support columns.
It should be noted that, in addition to the above-described limiting of the fixing sleeve 3 by the tension spring 6 and the pillar, the fixing sleeve 3 may be limited by other means. As shown in fig. 2, the sleeve mechanism may further include a first stopper pin 23 disposed on an outer side surface of the at least one first tooth claw 21, and the first stopper pin 23 is configured to prevent the fixed sleeve 3 from rotating. The first limit pin 23 may be in threaded connection with the outer side surface of the first claw 21, and certainly, the connection may also be achieved in other manners, which is not limited in the embodiment of the present invention.
When the sleeve mechanism provided with the first limit pin 23 is used, the specific use direction and the use method without the first limit pin 23 may be the same or similar, and details are not described here. When not using sleeve mechanism, owing to can make extension spring 6 be in tensile state or compression state through first spacer pin 23 to can avoid taking place to rock relatively between fixed sleeve 3 and the screens sleeve 2, lead to the phenomenon that spare part on fixed sleeve 3 and the screens sleeve 2 takes place to become flexible and drop.
In the embodiment of the present invention, as shown in fig. 4, the outer wall of the second end of the locking sleeve 2 is provided with a second groove 24 along the circumferential direction; the sleeve mechanism further comprises a first clamp spring 7 arranged in the second groove 24, and the first clamp spring 7 is used for limiting the inward turning edge.
Based on the above setting, because the one side on the enstrophe edge that fixed sleeve 3's second end set up and screens sleeve 2's step face contact, the opposite side contacts with first jump ring 7 to step face through screens sleeve 2 and first jump ring 7 realize spacing on enstrophe edge, and then realize spacing to fixed sleeve 3, when the clearance between the inner wall of avoiding fixed sleeve 3 and screens sleeve 2's outer wall is great, fixed sleeve 3 follows the phenomenon that screens sleeve 2 drops.
It should be noted that, in addition to the above arrangement, the inward turned edge may be limited, at least one limiting groove may be radially disposed at the second end of the position-limiting sleeve 2, so that a limiting nail may be disposed in each limiting groove to limit the inward turned edge. Of course, the turned-over edge can be limited by other methods, which is not limited in the embodiment of the present invention.
In an embodiment of the present invention, as shown in fig. 5, the ratchet wrench mechanism 1 may include: the ratchet mechanism comprises a reversible ratchet wheel 11, a ratchet wheel outer sleeve 12, a toggle pin 13 and a handle 14; the reversible ratchet 11 and the ratchet outer sleeve 12 are both of a cylindrical structure with two open ends, the reversible ratchet 11 is detachably sleeved at the second end of the clamping sleeve 2, the ratchet outer sleeve 12 is sleeved on the reversible ratchet 11, the ratchet outer sleeve 12 and the reversible ratchet 11 can rotate relatively, and the ratchet outer sleeve 12 is provided with a third through hole along the radial direction; the first end of the toggle pin 13 passes through the third through hole and is engaged with the tooth space of the reversible ratchet wheel 11, and one end of the handle 14 is detachably fixed on the ratchet wheel outer sleeve 12.
The reversible ratchet wheel 11 is a ratchet wheel which can rotate clockwise or counterclockwise under the cooperation of the toggle pin 13.
Based on the above arrangement, since the toggle pin 13 passes through the third through hole to engage with the tooth socket of the reversible ratchet 11, when the ratchet outer sleeve 12 is rotated by the handle 14, the reversible ratchet 11 can be driven to rotate synchronously by the toggle pin 13, and in addition, since the reversible ratchet 11 is fixedly connected with the second end of the clamping sleeve 2, the hand wheel can be driven to rotate synchronously by the clamping sleeve 2, thereby realizing the opening and closing operation of the valve.
It should be noted that, when the valve is opened or closed, the space is limited due to the fact that many valves are installed on the wellhead of the oil and gas well, or for the convenience of operation of an operator, 360-degree rotation of the handle 14 may not be achieved. At this time, in a possible implementation manner, the toggle pin 13 may be pulled out when the ratchet outer 12 is driven by the handle 14 to rotate by a certain angle, the ratchet outer 12 is driven by the handle 14 to rotate in the reverse direction, and after the ratchet outer 12 rotates in the reverse direction by a certain angle, the first end of the toggle pin 13 passes through the third through hole and is engaged with the tooth socket of the reversible ratchet 11. And then, when the ratchet wheel outer sleeve 12 is driven by the handle 14 to rotate for a certain angle, the pulling pin 13 is pulled out until the valve is opened or closed.
Of course, on the basis of the above description, as shown in fig. 5, the ratchet wrench mechanism 1 may further include: a sleeve 15, a compression spring 16 and a cap 17; the side of the first end of the toggle pin 13 is provided with a boss which is clamped at the outer wall of the ratchet wheel outer sleeve 12, the second end of the toggle pin 13 sequentially penetrates through the sleeve 15, the pressure spring 16 and the cap 17, the first end of the sleeve 15 is fixedly communicated with the third through hole, the inner diameter of the sleeve 15 is larger than the aperture of the second through hole, and the second end of the sleeve 15 is fixedly connected with the cap 17.
Among two opposite side surfaces at the first end of the toggle pin 13, the first side surface may be parallel to the length direction of the toggle pin 13, and the second side surface may be a smooth inclined surface or an arc surface. Thus, the first end of the dial pin 13 is engaged with the tooth space of the reversible ratchet wheel 11 under the action of the pressure spring 16, when the ratchet wheel outer sleeve 12 is rotated through the handle 14, if the first side surface of the dial pin 13 is contacted with the tooth space of the reversible ratchet wheel 11, the reversible ratchet wheel 11 can be driven to synchronously rotate through the dial pin 13, and if the second side surface of the dial pin 13 is contacted with the tooth space of the reversible ratchet wheel 11, in the rotation process of the ratchet wheel outer sleeve 12, the tooth space of the reversible ratchet wheel 11 can generate a squeezing effect on the first end of the dial pin 13, and the dial pin 13 moves in a direction away from the reversible ratchet wheel 11 when the pressure spring 16 is compressed and deformed through the boss.
Based on the above description, it is assumed that the clockwise rotation of the hand wheel is the opening operation of the valve, and the clockwise rotation of the ratchet outer 12 by the handle 14 brings the first side of the moving pin 13 into contact with the tooth groove of the reversible ratchet 11. Therefore, the reversible ratchet wheel 11 can be driven to rotate clockwise synchronously through the poking pin 13, and the hand wheel is driven to rotate clockwise synchronously. After the hand wheel rotates for a certain angle, the ratchet wheel outer sleeve 12 can be rotated anticlockwise through the handle 14, at the moment, the second side surface of the toggle pin 13 is in contact with the tooth groove of the reversible ratchet wheel 11, and the toggle pin 13 is driven to move in the direction away from the reversible ratchet wheel 11, so that the problem that the toggle pin 13 is pulled out manually is solved, and the operation efficiency of operators is improved. The ratchet outer sleeve 12 is rotated clockwise and anticlockwise in a reciprocating mode, and therefore opening operation of the valve can be achieved. When the valve needs to be closed, the toggle pin 13 is pulled out manually, and the pin passes through the third through hole after rotating 180 degrees and is meshed with the tooth groove of the reversible ratchet wheel 11, and the subsequent process of closing the valve can be similar to the process of opening the valve, and is not described again here.
When the second end of the clamping sleeve 2 is fixedly connected with the reversible ratchet 11, in a possible implementation manner, the cross section of the second end of the clamping sleeve 2 is polygonal, and a first clamping groove is formed in the outer wall of the second end of the clamping sleeve 2 in the circumferential direction; the inner wall of the reversible ratchet wheel 11 forms a structure matched with the second end of the clamping sleeve 2, and a second clamping groove is formed in the circumferential direction; the ratchet wrench mechanism 1 further comprises a second clamp spring, and the second clamp spring is located in a circular groove formed by the first clamping groove and the second clamping groove.
Based on the above arrangement, because the inner wall of the reversible ratchet wheel 11 forms a structure matched with the second end of the clamping sleeve 2, the reversible ratchet wheel 11 can be directly sleeved at the second end of the clamping sleeve 2, and the second clamp spring is arranged in the circular groove formed by the first clamping groove and the second clamping groove. The second circlip has a certain elasticity, so that the reversible ratchet wheel 11 is prevented from automatically falling off from the second end of the clamping sleeve 2. The second end of the clamping sleeve 2 may have an octagonal prism structure, a hexagonal prism structure, a quadrangular prism structure, or the like, and correspondingly, the inner wall of the reversible ratchet 11 has an octagonal prism structure, a hexagonal prism structure, a quadrangular prism structure, or the like.
Of course, the second end of the locking sleeve 2 and the reversible ratchet 11 may also be fixed in other manners, as long as it is ensured that the locking sleeve 2 and the reversible ratchet 11 can rotate synchronously, and the reversible ratchet 11 is prevented from automatically falling off from the locking sleeve 2, which is not limited in the embodiment of the present invention.
As shown in fig. 5, the handle 14 may include a fixing rod 141 and an expansion rod 142; the ratchet outer sleeve 12 is provided with an insertion hole, one end of the fixing rod 141 extends into the insertion hole, and the other end of the fixing rod 141 is connected with one end of the telescopic rod 142 in a pin mode.
Based on the above arrangement, when the ratchet outer sleeve 12 is rotated by the handle 14, if the acting force applied to the handle 14 by the operator is hard to cause the ratchet outer sleeve 12 to rotate, the length of the telescopic rod 142 can be properly adjusted to increase the length of the force arm of the handle 14, so as to achieve the purpose of saving labor, thereby facilitating the operation of the operator on and off the valve. In addition, since one end of the fixing rod 141 is inserted into the insertion hole of the ratchet outer 12, it is ensured that the fixing rod 141 can be separated from the ratchet outer 12 by an external force. Like this at the operating personnel to the switch operation in-process of valve, because be connected through the connected mode of pin joint between dead lever 141 and the telescopic link 142, if the lead screw of valve or hand wheel were beaten out by the inside high pressure of valve, ratchet overcoat 12, reversible ratchet 11, screens sleeve 2 and fixed sleeve 3 can regard as a whole, can use the pin joint point of dead lever 141 and telescopic link 142 as the centre of a circle rotation, after rotatory certain angle, jack separation on dead lever 141 and the ratchet overcoat 12, thereby avoid being beaten out at the lead screw of valve or hand wheel, the bodily injury that causes for the operating personnel.
In the embodiment of the invention, when the valve needs to be opened and closed, the clamping sleeve and the fixing sleeve are sequentially sleeved on the screw rod of the valve, then the fixing sleeve is sleeved on the clamping sleeve, and the support column on the hand wheel is limited in the gap between two adjacent first tooth claws through the plurality of second tooth claws, so that the clamping sleeve is prevented from sliding off the hand wheel when the valve is opened and closed. Afterwards, with reversible ratchet cover at the telescopic second end of screens, thus, the operating personnel can both hands hold up the telescopic link on the handle and apply the effort and rotate in order to drive ratchet overcoat synchronous revolution, drive reversible ratchet synchronous revolution under the synchronization action of stirring the round pin simultaneously, and then drive screens sleeve and hand wheel and take place synchronous revolution, in order to realize the switching operation to the valve, avoided in the switching operation of valve, the inconvenient circumstances of applying the effort of operating personnel, simultaneously because dead lever on the handle can separate with the jack on the ratchet overcoat, thereby avoid the lead screw at the valve or the injury that the hand wheel flew out and cause the operating personnel.
The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A valve opening and closing tool, comprising: the ratchet wrench comprises a ratchet wrench mechanism (1) and a sleeve mechanism, wherein the sleeve mechanism comprises a clamping sleeve (2) and a fixing sleeve (3);
the clamping sleeve (2) is of a cylindrical structure with openings at two ends and steps, the outer diameter of the first end of the clamping sleeve (2) is larger than that of the second end of the clamping sleeve, a plurality of first tooth claws (21) extend axially from the end face of the first end of the clamping sleeve (2), and the second end of the clamping sleeve (2) is detachably and fixedly connected with the ratchet wrench mechanism (1);
the terminal surface of the first end of fixed sleeve (3) is provided with a plurality of second tooth claws (31) along axial extension, the terminal surface of the second end of fixed sleeve (3) is along radially being provided with the enstrophe edge, the internal diameter on enstrophe edge is less than the external diameter of first end and be greater than the external diameter of second end on screens sleeve (2), fixed sleeve (3) cover is in on screens sleeve (2), just a plurality of second tooth claws (31) are used for spacing the clearance between two adjacent first tooth claws (21) with the pillar on the hand wheel.
2. The valve opening and closing tool as claimed in claim 1, wherein the outer wall of the first end of the detent sleeve (2) is provided with a first groove (22) in the circumferential direction, the fixing sleeve (3) is provided with a first through hole (32) in the radial direction at a position corresponding to the first end of the first groove (22), and the side of the first through hole (32) is provided with a threaded hole;
the sleeve mechanism further comprises a fixing pin (4) arranged at the second end of the first groove (22), a fixing bolt (5) fixed in the threaded hole, and a tension spring (6) with two ends fixedly connected with the fixing pin (4) and the fixing bolt (5) respectively.
3. Valve switch tool according to claim 2, characterized in that the sleeve mechanism further comprises a first limit pin (23) arranged on an outer side surface of at least one first tooth claw (21), the first limit pin (23) being adapted to prevent the fixed sleeve (3) from rotating.
4. The valve switch tool of claim 1, wherein the fixing sleeve (3) is provided with a second through hole along the radial direction, and the position of the position-locking sleeve (2) corresponding to the second through hole is provided with a limit groove;
the sleeve mechanism further comprises a second limiting pin which penetrates through the second through hole, and one end of the second limiting pin is located in the limiting groove.
5. The valve opening and closing tool as claimed in any of claims 1 to 4, characterized in that the outer wall of the second end of the detent sleeve (2) is provided with a second groove (24) in the circumferential direction;
the sleeve mechanism further comprises a first clamp spring (7) arranged in the second groove (24), and the first clamp spring (7) is used for limiting the inverted edge.
6. Valve switch tool according to claim 1, characterized in that the ratchet wrench mechanism (1) comprises: the ratchet mechanism comprises a reversible ratchet (11), a ratchet outer sleeve (12), a toggle pin (13) and a handle (14);
the reversible ratchet wheel (11) and the ratchet wheel outer sleeve (12) are both of a cylindrical structure with two open ends, the reversible ratchet wheel (11) is detachably sleeved at the second end of the clamping sleeve (2), the ratchet wheel outer sleeve (12) is sleeved on the reversible ratchet wheel (11), the ratchet wheel outer sleeve (12) and the reversible ratchet wheel (11) can rotate relatively, and a third through hole is radially formed in the ratchet wheel outer sleeve (12);
the first end of the toggle pin (13) penetrates through the third through hole and is meshed with the tooth groove of the reversible ratchet wheel (11), and one end of the handle (14) is detachably fixed on the ratchet wheel outer sleeve (12).
7. The valve switch tool of claim 6, wherein the ratchet wrench mechanism (1) further comprises: a sleeve (15), a pressure spring (16) and a cover cap (17);
a boss is arranged on the side face of the first end of the toggle pin (13), the boss is clamped on the outer wall of the ratchet wheel outer sleeve (12), and the second end of the toggle pin (13) sequentially penetrates through the sleeve (15), the pressure spring (16) and the cover cap (17);
the first end of the sleeve (15) is fixedly communicated with the third through hole, the inner diameter of the sleeve (15) is larger than the aperture of the second through hole, and the second end of the sleeve (15) is fixedly connected with the cover cap (17).
8. The tool of claim 6, wherein the second end of the locking sleeve (2) has a polygonal cross section, and the outer wall of the second end of the locking sleeve (2) is provided with a first locking groove along the circumferential direction; the inner wall of the reversible ratchet wheel (11) forms a structure matched with the second end of the clamping sleeve (2), and a second clamping groove is formed in the circumferential direction;
the ratchet wrench mechanism (1) further comprises a second clamp spring, and the second clamp spring is located in a circular groove formed by the first clamping groove and the second clamping groove.
9. The tool for opening and closing a gate according to any one of claims 6 to 8, wherein said handle (14) comprises a fixed rod (141) and a telescopic rod (142);
an insertion hole is formed in the ratchet wheel outer sleeve (12), one end of the fixing rod (141) extends into the insertion hole, and the other end of the fixing rod (141) is connected with one end of the telescopic rod (142) in a pin mode.
10. Valve opening and closing tool according to claim 1, wherein each second tooth claw (31) is L-shaped or T-shaped.
CN201811246592.XA 2018-10-24 2018-10-24 Valve switch tool Active CN111089196B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112207749A (en) * 2020-09-27 2021-01-12 福建福清核电有限公司 Tool for opening and closing manual valve

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CN207309807U (en) * 2017-10-12 2018-05-04 中国石油化工股份有限公司 Valve switch ratchet spanner component
CN209354740U (en) * 2018-10-24 2019-09-06 中国石油天然气股份有限公司 valve opening and closing tool

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US5197749A (en) * 1992-03-20 1993-03-30 Moore Sidney D Keyless chucking device
CN1500583A (en) * 2002-11-18 2004-06-02 ��Լ�عɷݹ�˾ Tool holder with locking system
US20060038359A1 (en) * 2004-08-17 2006-02-23 Luckenbaugh Thomas L Keyless chuck with automatic and manual locking
CN201220389Y (en) * 2008-06-26 2009-04-15 邓伟超 Multifunction spanner
CN102448618A (en) * 2009-07-27 2012-05-09 瓦卢瓦有限合伙公司 Removable attachment system
US20130264782A1 (en) * 2012-04-10 2013-10-10 Neil Mason Locking chuck
CN203636771U (en) * 2013-12-25 2014-06-11 潍坊万隆电气股份有限公司 Claw pole type car electricity generator pulley tensioning tool
CN204308817U (en) * 2014-11-11 2015-05-06 上海美瑞实业有限公司 A kind of dual gauge box spanner assembly
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112207749A (en) * 2020-09-27 2021-01-12 福建福清核电有限公司 Tool for opening and closing manual valve

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