CN219704898U - Restricted space valve adjusting spanner - Google Patents

Abstract

The utility model provides a limited space valve adjusting spanner which comprises a spanner head, a transmission box, a transmission assembly, an extension pipe and an operating rod, wherein one end of the spanner head is connected with the transmission assembly, one end of the extension pipe is connected with the transmission assembly, the extension pipe is in sliding fit with the operating rod, and the transmission assembly is arranged in the transmission box. The utility model adopts a pair of straight bevel gears which are vertically arranged to mesh, realizes the direction-changing rotation in a limited space, has small device and small occupied space, and provides convenience for operators to operate the valve; the first gear and the second gear have the characteristics of continuous rotation, stable transmission, reliable work, high efficiency and long service life.

Description

Restricted space valve adjusting spanner

Technical Field

The utility model belongs to the technical field of wrenches, and particularly relates to a limited space valve adjusting wrench.

Background

In the maintenance process of pipelines, various adjusting wrenches are often required to be used, and the wrenches used are different according to different environments, for example, when pipeline valves are adjusted in a narrow space, whether toxic gas exists in the narrow space or whether an operator can enter the narrow space is required to be considered. There is therefore a need for a limited space valve adjustment wrench, such as may be required in flow battery plumbing valve adjustment.

The publication number CN216504750U discloses a length-adjustable downhole valve wrench, which comprises an extension tube, an operating rod, a positioning bolt and a wrench head; wherein, the bottom end of the extension tube is fixedly connected with a connecting block, a plurality of first through holes are arranged on the extension tube at equal intervals, and at least one track groove is arranged on the inner wall of the extension tube along the axial direction of the extension tube; the operation rod comprises a connecting rod and a rotating rod, and a second through hole and a positioning convex edge are arranged on the connecting rod; the positioning bolts penetrate through the corresponding first through holes and the second through holes; the spanner head is fixedly connected with the connecting block. The underground valve wrench with the structure can be used for valve opening and closing operation at a wellhead, so that potential safety hazards are avoided, and the operation flow is simplified.

However, the existing adjusting wrench cannot change the direction to rotate to adjust the valve when in use, and is inconvenient to use.

Disclosure of Invention

In order to solve the problems, the utility model provides a limited space valve adjusting spanner.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a limited space valve adjusting spanner comprises a spanner head, a transmission box, a transmission assembly, an extension pipe and an operating rod;

one end of the spanner head is connected with the transmission assembly;

one end of the extension tube is connected with the transmission assembly;

the extension tube is in sliding fit with the operating rod;

the transmission assembly is arranged in the transmission box.

Preferably, the transmission assembly comprises a first gear and a second gear, the first gear and the second gear being meshed.

Preferably, one end of the wrench head extends into the transmission case, one end of the second gear is sleeved on the wrench head, and a second screw is arranged along the radial direction and penetrates through the second gear to be in threaded connection with the wrench head.

Preferably, one end of the extension tube extends into the transmission case, one end of the first gear is sleeved on the extension tube, and a second screw is arranged along the radial direction and penetrates through the first gear to be in threaded connection with the extension tube.

Preferably, the operating rod is sleeved on the extension pipe, and a positioning bolt is connected between the extension pipe and the operating rod.

Preferably, the surface of the extension tube is provided with a plurality of first through holes, and the first through holes are uniformly arranged along the axial direction of the extension tube.

Preferably, the surface of the operating rod is provided with a plurality of second through holes;

and a plurality of second through holes are uniformly formed along the axial direction of the operating rod.

Preferably, the first through hole is a waist hole, the second through hole is a round hole, and the semicircular aperture of the first through hole is larger than or equal to the radius of the second through hole.

Preferably, a cover plate is further installed on the transmission case, and a first screw is connected between the cover plate and the transmission case.

Preferably, the first gear and the second gear are perpendicular to each other.

The utility model has the beneficial effects that:

1. the utility model adopts a pair of straight bevel gears which are vertically arranged to mesh, realizes the direction-changing rotation in a limited space, has small device and small occupied space, and provides convenience for operators to operate the valve;

2. the first gear and the second gear have the characteristics of continuous rotation, stable transmission, reliable work, high efficiency and long service life.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 shows a schematic diagram of a limited space valve adjustment wrench of the present utility model;

FIG. 2 shows a schematic diagram of the transmission assembly of the present utility model;

FIG. 3 shows a block diagram of an adjustable embodiment of the wrench head of the present utility model.

In the figure: 1. a spanner head; 101. a connecting pipe; 102. a transverse tube; 103. welding the pipe; 2. a transmission case; 3. a cover plate; 4. a first screw; 5. an extension tube; 501. a first through hole; 6. positioning bolts; 7. an operation lever; 701. a second through hole; 8. a second screw; 9. a first gear; 10. a second gear; 11. an adjusting tube; 12. a fastening bolt; 13. a fixed tube; 1301. and a connection hole.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a limited space valve adjustment spanner, is shown as fig. 1, includes spanner head 1, transmission case 2, drive assembly, extension pipe 5 and action bars 7, and spanner head 1 one end is connected with drive assembly, and extension pipe 5 one end is connected with drive assembly, extension pipe 5 and action bars 7 sliding fit, and drive assembly installs in transmission case 2.

As can be seen from fig. 2, the wrench head 1 is divided into a connection pipe 101, a transverse pipe 102, and a welding pipe 103, wherein the connection pipe 101 is connected with a transmission assembly, a middle section of the transverse pipe 102 is welded with the connection pipe 101, and then two welding pipes 103 are provided at both ends of the transverse pipe 102.

As shown in fig. 3, there are still other embodiments of the wrench head 1, which includes an adjusting tube 11, a fastening bolt 12 and a fixing tube 13, specifically, the fixing tube 13 is slidably matched with the adjusting tube 11, and connection holes 1301 are formed on the surface of the fixing tube 13 and the adjusting tube 11, then the fastening bolt 12 is in threaded fit with the connection holes 1301, so that the fixing tube 13 and the adjusting tube 11 are fixed, and the structure enables the rotation radius of the wrench head 1 to be changed, and can be adjusted according to the size of a valve when in use.

It should be noted that, when the adjusting wrench is used, the operating rod 7 is rotated, then the extension tube 5 is driven to rotate, the extension tube 5 then drives the transmission component to work, then the transmission component drives the wrench head 1 to rotate, and finally the wrench head 1 performs valve adjustment.

As shown in fig. 2, the transmission assembly includes a first gear 9 and a second gear 10, the first gear 9 and the second gear 10 being meshed. And the first gear 9 and the second gear 10 are straight bevel gears and are perpendicular to each other, and the transmission direction can be changed after the first gear 9 and the second gear 10 are meshed.

In addition, in fig. 2, one end of the wrench head 1 extends into the transmission case 2, one end of the second gear 10 is sleeved on the wrench head 1, and a second screw 8 is radially arranged, and the second screw 8 passes through the second gear 10 to be in threaded connection with the wrench head 1; one end of the extension tube 5 extends into the transmission case 2, one end of the first gear 9 is sleeved on the extension tube 5, a second screw 8 is arranged along the radial direction, and the second screw 8 penetrates through the first gear 9 to be in threaded connection with the extension tube 5.

It should be noted that, the second screw 8 is an inner hexagon screw, one end of the first gear 9 and one end of the second gear 10 are of a cylindrical structure, and can be sleeved on the connecting pipe 101 of the wrench head 1 and the extension pipe 5, and then fixed by the second screw 8, so that the structure is convenient for disassembling and replacing the transmission assembly.

Further, an operating rod 7 is sleeved on the extension tube 5, and a positioning bolt 6 is connected between the extension tube 5 and the operating rod 7; in addition, a plurality of first through holes 501 are formed in the surface of the extension tube 5, and the plurality of first through holes 501 are uniformly arranged along the axial direction of the extension tube 5; in addition, a plurality of second through holes 701 are formed on the surface of the operating rod 7, and the plurality of second through holes 701 are uniformly arranged along the axial direction of the operating rod 7.

It should be noted that the extension tube 5 and the operation rod 7 can slide relatively, adjust the total length of the two, and then be fixed by the positioning bolt 6.

Further, the second through hole 701 is a circular hole, the first through hole 501 is a waist hole, and the semicircular aperture of the first through hole 501 is greater than or equal to the radius of the second through hole 701.

It should be noted that, the size of the second through hole 701 is larger than that of the first through hole 501, so that the second through hole 701 and the first through hole 501 are more convenient due to the structure, and the two holes are not required to be coaxial, so that the positioning bolt 6 can be conveniently fixed through the first through hole 501 and the second through hole 701.

Further, a cover plate 3 is further installed on the transmission case 2, and a first screw 4 is connected between the cover plate 3 and the transmission case 2.

It should be noted that, the cover plate 3 is a detachable structure, and when the transmission assembly needs to be repaired or replaced, the cover plate 3 can be opened for repair or replacement.

Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (4)

1. The limited space valve adjusting spanner is characterized by comprising a spanner head (1), a transmission box (2), a transmission assembly, an extension pipe (5) and an operating rod (7);

one end of the spanner head (1) is connected with the transmission component;

one end of the extension tube (5) is connected with the transmission assembly;

the extension tube (5) is in sliding fit with the operating rod (7);

the transmission assembly is arranged in the transmission box (2);

the transmission assembly comprises a first gear (9) and a second gear (10), and the first gear (9) is meshed with the second gear (10);

one end of the wrench head (1) extends into the transmission case (2), one end of the second gear (10) is sleeved on the wrench head (1), a second screw (8) is arranged along the radial direction, and the second screw (8) penetrates through the second gear (10) to be in threaded connection with the wrench head (1);

the operating rod (7) is sleeved on the extension pipe (5), and a positioning bolt (6) is connected between the extension pipe (5) and the operating rod (7);

a plurality of first through holes (501) are formed in the surface of the extension tube (5), and the plurality of first through holes (501) are uniformly arranged along the axial direction of the extension tube (5);

a plurality of second through holes (701) are formed in the surface of the operating rod (7);

the second through holes (701) are uniformly arranged along the axial direction of the operating rod (7);

the first through hole (501) is a waist hole, the second through hole (701) is a round hole, and the semicircular aperture of the first through hole (501) is larger than or equal to the radius of the second through hole (701);

the spanner head (1) comprises a connecting pipe (101), a transverse pipe (102) and welding pipes (103), wherein the connecting pipe (101) is connected with a transmission assembly, the middle section of the transverse pipe (102) is welded with the connecting pipe (101), and the two welding pipes (103) are respectively arranged at two ends of the transverse pipe (102).

2. The limited space valve adjusting wrench as claimed in claim 1, wherein one end of the extension tube (5) extends into the transmission case (2), one end of the first gear (9) is sleeved on the extension tube (5), and a second screw (8) is radially arranged, and the second screw (8) passes through the first gear (9) to be in threaded connection with the extension tube (5).

3. A limited space valve adjusting wrench as claimed in claim 1 or 2, wherein a cover plate (3) is further mounted on the transmission case (2), and a first screw (4) is connected between the cover plate (3) and the transmission case (2).

4. A limited space valve adjustment wrench according to claim 1, wherein the first gear (9) and the second gear (10) are perpendicular to each other.