CN213592739U - Wrench for opening and closing valve - Google Patents
Wrench for opening and closing valve Download PDFInfo
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- CN213592739U CN213592739U CN202021247544.5U CN202021247544U CN213592739U CN 213592739 U CN213592739 U CN 213592739U CN 202021247544 U CN202021247544 U CN 202021247544U CN 213592739 U CN213592739 U CN 213592739U
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- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
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- 230000003014 reinforcing effect Effects 0.000 description 2
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- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The application relates to a spanner for switch valve belongs to valve maintenance technical field. This spanner includes dop and power spare, and the dop is used for clamping on the carousel of valve, and power spare can provide the power of switching valve, because the length of power spare is greater than the length of the connecting piece in the dop, consequently, the power of acting on the carousel through the dop is greater than the power of exerting on power spare to can use manpower sparingly, also save workman's operating time, improve the efficiency of switching valve process, reduced the safe risk of site operation simultaneously.
Description
Technical Field
The application relates to the technical field of valve maintenance, in particular to a wrench for opening and closing a valve.
Background
In the process of petroleum production, transportation and use, a large number of devices such as pipelines, storage tanks and the like are applied, and various valves are usually arranged on the devices, so that the devices can be opened and closed through opening and closing of the valves.
Among them, due to the reason such as construction pressure is great or the valve rusts, the carousel on many valves is difficult to rotate, leads to the valve to be difficult to open or close.
The oil workers on site usually rotate the rotary disc of the valve by manpower at present, and a great deal of manpower and time are consumed in the process.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a spanner for switch valve, can use manpower sparingly, also saves workman's operating time, improves the efficiency of switch valve process. The technical scheme is as follows:
there is provided a wrench for opening and closing a valve, the wrench including: a chuck and a power part;
the clamping head is used for being clamped on a rotary disc of the valve and comprises a resistance part, a supporting part and a connecting part, the resistance part and the supporting part are parallel to each other, and the connecting part is respectively connected with the first end of the resistance part and the first end of the supporting part;
the first end of the power piece is connected with the first end of the supporting piece, the power piece is coaxial with the connecting piece, and the length of the power piece is larger than that of the connecting piece.
In one possible design, the side wall of the resistance element has a plurality of first grooves which are matched with the inner wall of the rotating disc.
In one possible design, the side wall of the support has a plurality of second grooves that fit the outer wall of the turntable.
In one possible design, the power member includes a first fixed member and a first telescopic member, a first end of the first fixed member is connected with the first end of the supporting member, and a second end of the first fixed member is telescopically connected with the first end of the first telescopic member.
In one possible design, the second end of the first fixing piece has an internal thread;
the first end of the first telescopic piece is provided with an external thread matched with the internal thread.
In one possible design, the resistance element comprises a second fixed element and a second telescopic element, which are telescopically connected to each other.
In one possible design, the support member includes a third fixed member and a third telescopic member, and the third fixed member and the third telescopic member are telescopically connected.
In one possible design, the second end of the power member has an anti-slip handle.
In one possible design, the resistance element and the support element have anti-slip threads on their walls.
In one possible design, the length of the power member is 2-8 times the length of the connecting member.
The spanner that this application embodiment provided includes dop and power spare, the dop is used for clamping on the carousel of valve, power spare can provide the power of ooff valve, because the length of power spare is greater than the length of the connecting piece in the dop, consequently, the power of acting on the carousel through the dop is greater than the power of exerting on the power spare, thereby can use manpower sparingly, workman's operating time has also been saved, the efficiency of ooff valve process has been improved, the safety risk of site operation has been reduced simultaneously.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, 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 structural diagram of a wrench for opening and closing a valve according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram illustrating an operation principle of a wrench for opening and closing a valve according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram illustrating an operation of a wrench for opening and closing a valve according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a wrench for opening and closing a valve according to an embodiment of the present application.
The various reference numbers in the drawings are illustrated below:
1-clamping a head;
11-a resistance element;
111-a second fixed part, 112-a second telescopic part;
12-a support;
121-a third fixed part, 122-a third telescopic part;
13-a connector;
2-a power member;
21-a first fixed part, 22-a first telescopic part;
3-rotating the disc.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a wrench for opening and closing a valve according to an embodiment of the present application, please refer to fig. 1, the wrench including: the clamping head 1 and the power part 2; the clamping head 1 is used for being clamped on the rotary disc 3 of the valve, the clamping head 1 comprises a resistance part 11, a support part 12 and a connecting part 13, the resistance part 11 and the support part 12 are parallel to each other, and the connecting part 13 is respectively connected with the first end of the resistance part 11 and the first end of the support part 12; the first end of the power member 2 is connected to the first end of the supporting member 12, the power member 2 is coaxial with the connecting member 13, and the length of the power member 2 is greater than that of the connecting member 13.
The working principle of the wrench is described as follows:
fig. 2 is a schematic view illustrating an operation principle of a wrench for opening and closing a valve according to an embodiment of the present invention, and fig. 3 is a schematic view illustrating an operation principle of a wrench for opening and closing a valve according to an embodiment of the present invention, and referring to fig. 2 and 3, a rotary disk 3 of a valve body includes a central shaft, reinforcing ribs, and an outer ring, and the plurality of reinforcing ribs are radially connected between the central shaft and the outer ring of the rotary disk 3. The valve is opened or closed using the wrench, i.e., a worker needs to turn the rotary disk 3 of the valve counterclockwise or clockwise by means of the wrench.
This spanner that this application embodiment provided includes dop 1 and power spare 2, dop 1 is used for clamping on the carousel 3 of valve, power spare 2 can provide switching valve's power, because the length of power spare 2 is greater than the length of the connecting piece 13 in the dop 1, therefore, the power of acting on carousel 3 through dop 1 is greater than the power of exerting on power spare 2, thereby can use manpower sparingly, workman's operating time has also been saved, the efficiency of switching valve process has been improved, the safety risk of site operation has been reduced simultaneously.
The structure and the working principle of each part of the wrench are described as follows:
a clamping head 1:
referring to fig. 2, the chuck 1 includes two clamping points a and b, and when the chuck 1 clamps the valve rotating disk 3, a force F is applied to the action point of the lever c3According to the principle of force interaction, two stuck points a and b generate F1And F2Two reaction forces.
According to the lever principle, i.e. power x power arm as resistanceX resistance arm. If b is taken as a fulcrum, L3And L2-L3Respectively a resistance arm and a power arm.
By equation 1:
F3×L2-L3＝F1×L3equation 1
if the friction coefficient between the chuck 1 and the valve rotating disk 3 is set to be mu, the maximum friction force generated by the clamping point a is obtained to be mu F1I.e. equation 3:
if a is taken as a fulcrum, L2And L3Respectively a resistance arm and a power arm.
By equation 4:
F3×L2＝F2×L3equation 4
Equation 5 is derived:
if the friction coefficient between the chuck 1 and the valve rotating disk 3 is set to be mu, the maximum friction force generated by the clamping point b is obtained to be mu F2I.e. equation 6:
since the maximum friction forces generated at the points a and b are in the same direction during the application process, the sum of the maximum friction forces on the valve disk 3 is μ F1+F2I.e. by
Due to L3、L2Mu are all fixed values, when F3The larger the reaction force generated, the larger the sum of the maximum frictional forces. The larger the sum of the maximum friction force is, the larger the effect of the chuck 1 on the valve turntable 3 is, the more the valve turntable 3 can be clamped, and the slipping phenomenon in construction can be effectively prevented.
Through the design of dop 1 of F type, can effectually block valve carousel 3, improve whole lever efficiency of construction, also reduced simultaneously because the construction risk that skids and cause.
In a possible design, the side wall of the resistance element 11 has a plurality of first grooves adapted to the inner wall of the rotary disc 3, so as to facilitate the clamping of the resistance element 11 on the inner wall of the rotary disc 3, and further to prevent slipping.
In a possible design, the side wall of the supporting member 12 has a plurality of second grooves adapted to the outer wall of the rotating disc 3, so as to facilitate the clamping of the supporting member 12 on the outer wall of the rotating disc 3, and further to prevent slipping.
Fig. 4 is a schematic structural diagram of a wrench for opening and closing a valve according to an embodiment of the present application, please refer to fig. 4, in a possible design, the resistance member 11 includes a second fixing member 111 and a second telescopic member 112, the second fixing member 111 and the second telescopic member 112 are telescopically connected, so that the length of the resistance member 11 can be adjusted according to actual needs, thereby adapting to rotating discs 3 with different thicknesses, and when the space in the up-down direction of the rotating discs 3 is insufficient, the length of the wrench in the up-down direction is reduced by adjusting the length of the resistance member 11, thereby facilitating the use of the wrench.
In a possible design, the supporting member 12 includes a third fixing member 121 and a third telescopic member 122, the third fixing member 121 and the third telescopic member 122 are telescopically connected to adjust the length of the supporting member 12 according to actual requirements, so as to adapt to rotating discs 3 with different thicknesses, and when the space in the up-down direction of the rotating discs 3 is insufficient, the length of the wrench in the up-down direction is reduced by adjusting the length of the supporting member 12, so as to facilitate the use of the wrench.
In a possible design, the resistance element 11 and the supporting element 12 have anti-slip threads on their walls, so as to prevent slipping between the resistance element 11 and the turntable 3 or between the supporting element 12 and the outer wall, which also improves the safety of the wrench during use.
The power part 2:
as shown in fig. 3, the lever action of the power member 2, the resistance member 11 and the support member 12 prolongs the power arm acting on the valve rotary disk 3, and increases the acting torque acting on the rotary disk 3. The specific analysis is as follows:
if F3Acting directly on the valve-rotating disk 3, generating a moment F according to the lever principle3×R。
If F3When the wrench acts on the valve turntable 3, the power arm is L1. When the lever acts on the valve turntable 3, the lever is similar to being internally tangent to the valve turntable 3, and then according to the principle that a line is internally tangent to a circle, formula 7 is obtained:
when the lever acts on the valve rotating disc 3, F3The direction of the applied force is perpendicular to L2Is not perpendicular to L1. The force F can be divided by the principle of force resolution, as shown in FIG. 33Decomposed perpendicular to L1Acting force F4And parallel to L1Acting force F5Then F is4To act on L1The moment arm of (1). By the principle of similarity of triangles, F3、F4、F5The formed triangle and L1、L2And the triangles formed by R are similar, and a formula 8 is obtained:
then F3The moment of force generated by the acting force on the valve rotating disc 3 is F4×L1Instant bookThe torque generated by the application of the embodiment is F3×L2。
The force F directly acting on the valve rotating disk 3 and the force F acting on the wrench provided by the embodiment of the application3The same, through the moment contrast, only need this application embodiment lever length L2The radius R of the valve turntable is larger than the radius R of the valve turntable 3, so that the aim of saving labor can be fulfilled.
With continued reference to fig. 4, in one possible design, the power member 2 includes a first fixed member 21 and a first telescopic member 22, a first end of the first fixed member 21 is connected with a first end of the supporting member 12, and a second end of the first fixed member 21 is telescopically connected with a first end of the first telescopic member 22, so as to adjust the length of the power member 2, i.e. the length of the power arm, and adjust the applied force F according to the space around the turntable 3 to be rotated and different workers3The size of (2).
In one possible design, the second end of the first fixing member 21 has an internal thread; the first end of the first telescopic part 22 is provided with an external thread matched with the internal thread, the first end of the first telescopic part 22 is screwed into the second end of the first fixing part 21, and the length of the power part 2 is lengthened by rotating the first telescopic part 22 outwards; by rotating the first telescopic member 22 inwards the length of the power member 2 is shortened.
In one possible design, the second end of the power member 2 is provided with an anti-slip handle, so that a worker can not easily disengage the hand from the power member 2 during operation, and the safety is improved.
In a possible design, the length of the power member 2 is 2-8 times of the length of the connecting member 13, so that under the condition of using the same acting force, the multiple effects of the common acting force can be achieved, and the aim of saving labor force is fulfilled. For example, the length of the connecting member 13 may be 15cm and the length of the power member 2 may be 85 cm.
All the above optional technical solutions may be combined arbitrarily to form optional embodiments of the present application, and are not described herein again.
According to the technical scheme provided by the embodiment of the application, the power part 2 can be used for providing a force application point by arranging the chuck 1 and the power part 2, the supporting part 12 in the chuck 1 can be used for providing a fulcrum, and the resistance part 11 in the chuck 1 can be used for driving other devices to rotate. In the process of using the wrench to open and close the valve, the resistance part 11 can be inserted into the rotary disc 3 of the valve to be abutted against the inner wall, the support part 12 is inserted outside the valve to be abutted against the outer wall, and the force in the direction perpendicular to the power part 2 is applied to the power part 2 to enable the contact point between the support part 12 and the rotary disc 3 to be a fulcrum, so that the resistance part 11 drives the rotary disc 3 to rotate by prying the inner wall. Because the length of power spare 2 is greater than the length of connecting piece 13, therefore the power arm is greater than the resistance arm, and power is less than the resistance, and the power that is to say acts on carousel 3 is greater than the workman and exerts force on power spare 2 to can use manpower sparingly when rotating carousel 3 easily, this spanner installation, use and dismantlement are all very convenient, consequently also saved workman's operating time, improved the efficiency of switch valve process, reduced the safety risk of site operation simultaneously.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (8)
1. A wrench for opening and closing a valve, the wrench comprising: the clamping head (1) and the power part (2);
the clamping head (1) is clamped on the rotary table (3) of the valve, the clamping head (1) comprises a resistance piece (11), a support piece (12) and a connecting piece (13), the resistance piece (11) and the support piece (12) are parallel to each other, and the connecting piece (13) is connected with the first end of the resistance piece (11) and the first end of the support piece (12) respectively;
the resistance piece (11) comprises a second fixed piece (111) and a second telescopic piece (112), and the second fixed piece (111) and the second telescopic piece (112) are connected in a telescopic mode;
the supporting part (12) comprises a third fixing part (121) and a third telescopic part (122), and the third fixing part (121) and the third telescopic part (122) are connected in a telescopic way;
the first end of power spare (2) with the first end of support piece (12) is connected, power spare (2) with connecting piece (13) are coaxial, just the length of power spare (2) is greater than the length of connecting piece (13).
2. A wrench as claimed in claim 1, wherein said resistance member (11) has a plurality of first recesses in its side walls which fit into the inner walls of said rotatable disk (3).
3. A wrench as claimed in claim 1, wherein the support member (12) has a plurality of second recesses in its side walls which fit into the outer walls of the rotatable disk (3).
4. A wrench as claimed in claim 1, wherein said power member (2) comprises a first fixed member (21) and a first telescopic member (22), a first end of said first fixed member (21) being connected to a first end of said support member (12), and a second end of said first fixed member (21) being telescopically connected to a first end of said first telescopic member (22).
5. A wrench as claimed in claim 4, wherein the second end of the first fixing member (21) is internally threaded;
the first end of the first telescopic part (22) is provided with an external thread matched with the internal thread.
6. A wrench as claimed in claim 1, characterised in that the second end of the power member (2) has an anti-slip handle.
7. A wrench as claimed in claim 1, wherein the resistance member (11) and the support member (12) each have anti-slip threads on their walls.
8. A wrench as claimed in claim 1, wherein the length of the power member (2) is 2-8 times the length of the connecting member (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021247544.5U CN213592739U (en) | 2020-06-30 | 2020-06-30 | Wrench for opening and closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021247544.5U CN213592739U (en) | 2020-06-30 | 2020-06-30 | Wrench for opening and closing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213592739U true CN213592739U (en) | 2021-07-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021247544.5U Active CN213592739U (en) | 2020-06-30 | 2020-06-30 | Wrench for opening and closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213592739U (en) |
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2020
- 2020-06-30 CN CN202021247544.5U patent/CN213592739U/en active Active
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