A socket wrench tool and method of use thereof

Abstract

The present application relates to the technical fields of ship engineering, in particular to a wrenching tool for n-bend joint and a using method thereof, the wrenching tool for n-bend joint comprises a sleeve ring and a wrenching rod, the sleeve ring is detachably sleeved on the outside of the locking sleeve, the circumferential side of the sleeve ring is provided with sleeves at positions opposite to each lug, the first end of each sleeve is arranged towards the center of the sleeve ring, and the first end of each sleeve is sleeved on the outside of each lug; the position of the circumferential side of the sleeve ring provided with the sleeve is connected with a locking mechanism for fixing the sleeve at the position; the first end of the wrenching rod is inserted into the second end of one of the sleeves, and the second end of the wrenching rod extends away from the sleeve ring; when in use, the lugs do not need to be knocked, the vibration generated by knocking the lugs is avoided, and the adverse effects of the n-bend joint on the stability of the pipeline caused by the way of installing or dismounting the lugs by knocking are avoided.

Description

Technical Field

[0001] This invention relates to the field of marine engineering technology, and in particular to a unibody wrench and its method of use. Background Technology

[0002] Union joints employ a conical hard seal, featuring high pressure resistance, durability, reliability, ease of use, and low cost. They are commonly used as connection joints for platform piling pipelines. Union joints can seal and connect two pipe bodies, and the two pipes can be separated or connected by rotating the locking sleeve. During the rotation of the locking sleeve, the pipe body remains fixed, thus facilitating maintenance. The outer side of the locking sleeve has three lugs evenly spaced along its circumference; the locking sleeve is rotated by hammering these lugs. However, hammering the lugs generates significant vibration, which adversely affects the stability of the pipeline. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that: currently, the connection or separation of the pipes at both ends of the locking sleeve is achieved by rotating the locking sleeve by hammering the lug on the outside of the locking sleeve of the union. However, the hammering of the lug will generate a large vibration, which will have an adverse effect on the stability of the pipeline.

[0004] To solve the above-mentioned technical problems, the purpose of this invention is to provide a union connector wrench tool for rotating the locking sleeve of a union connector. The locking sleeve has multiple lugs spaced apart on its outer periphery. The union connector wrench tool includes:

[0005] A collar is detachably fitted onto the outside of the locking sleeve. A sleeve is provided at a position on the periphery of the collar opposite to each of the lugs. The first end of each sleeve is arranged facing the center of the collar and is respectively fitted onto the outside of each of the lugs. A locking mechanism for fixing the sleeve at the position on the periphery of the collar is connected to the sleeve.

[0006] A wrench rod, the first end of which is inserted into the second end of one of the sleeves, and the second end of which extends away from the collar.

[0007] As a preferred embodiment, each of the collars is provided with a first mounting hole at the position opposite to each of the lugs, and each of the sleeves is respectively inserted into each of the first mounting holes;

[0008] Each of the first mounting holes has a positioning pin inserted through its hole wall, and each of the sleeves has a first positioning hole and a second positioning hole for the positioning pin to pass through. The first positioning hole and the second positioning hole on the same sleeve are arranged at intervals along the axial direction of the sleeve.

[0009] As a preferred solution, each positioning column comprises a first fastener and a stop sleeve slidingly sleeved outside the first fastener, each first fastener is respectively installed in each first mounting hole, the cylinder wall of each sleeve is provided with a first sliding groove, one end of each first sliding groove is in communication with the first positioning hole on the sleeve, and the other end of each first sliding groove is in communication with the second positioning hole on the sleeve.

[0010] The movement of each sleeve can make each first fastener move from each first sliding groove into each first positioning hole or each second positioning hole; when each first fastener is located in each first positioning hole, the movement of each stop sleeve in the axial direction of each first fastener can respectively insert each stop sleeve into each first positioning hole; when each first fastener is located in each second positioning hole, the movement of each stop sleeve in the axial direction of each first fastener can respectively insert each stop sleeve into each second positioning hole.

[0011] As a preferred solution, each first positioning hole, each second positioning hole and each first sliding groove are arranged on one side of each sleeve; the other side of each sleeve is provided with a second sliding groove, the second sliding groove on the same sleeve is arranged opposite to the first positioning hole, the first sliding groove and the second positioning hole on the sleeve, and each stop sleeve is slidingly inserted into each second sliding groove.

[0012] As a preferred solution, one side of the hole wall of each first mounting hole is provided with a second mounting hole for the first fastener to pass through, the other side of the hole wall of each first mounting hole is provided with a third mounting hole arranged opposite to the second mounting hole, and each stop sleeve is respectively threaded into each third mounting hole.

[0013] As a preferred solution, one end of each stop sleeve located outside the sleeve ring is provided with a handle portion protruding outward of the stop sleeve.

[0014] As a preferred solution, each first fastener is a bolt, each bolt is respectively threaded into each stop sleeve and each second mounting hole, and a first nut is screwed.

[0015] As a preferred solution, each positioning column is arranged through the sleeve, and the part of each positioning column located in the cylinder cavity of the sleeve forms a beam-shaped connecting portion.

[0016] The wrenching rod is a pipe body, the end of the first end of the wrenching rod is provided with a groove for accommodating the beam-shaped connecting portion, the pipe cavity of the wrenching rod is provided with an elastic clamping mechanism arranged close to the groove, and the elastic clamping mechanism is provided with a clamping groove for clamping the beam-shaped connecting portion.

[0017] As a preferred solution, the elastic clamping mechanism comprises a swing lever and an elastic compression member arranged in the lumen, the first end of the wrenching lever is the upper end, the second end of the wrenching lever is the lower end, the inner side of the lumen wall is provided with a protrusion extending into the lumen, the protrusion is located below the groove, the middle part of the swing lever is hinged to the protrusion, the upper end of the swing lever extends to one side of the groove, and the clamping groove is arranged at the first end of the swing lever towards one side of the groove; the lower end of the swing lever extends downward and close to the lumen wall and is provided with a pressing head, the pressing head is arranged at an angle with the second end of the swing lever, and the end of the pressing head away from the swing lever penetrates out of the tube body; one end of the elastic compression member abuts against the lumen wall, the other end of the elastic compression member abuts against the lower end of the swing lever, and the elastic compression member and the pressing head are arranged on both sides of the swing lever, respectively.

[0018] As a preferred solution, the sleeve ring comprises a first half ring and a second half ring which are connected to form a ring body, one end of the first half ring is hinged to one end of the second half ring, and the other end of the first half ring and the other end of the second half ring are screwed.

[0019] A method for using the wrenching tool of the above-mentioned nipple joint, characterized in that it comprises the following steps:

[0020] Step S1, installing the sleeve ring on the outside of the locking sleeve of the nipple joint;

[0021] Step S2, moving each sleeve towards the center of the sleeve ring, so that the first end of each sleeve is arranged outside the lug of each locking sleeve, and each sleeve is fixed on the sleeve ring by using each locking mechanism;

[0022] Step S3, inserting the wrenching lever into the second end of one of the sleeves;

[0023] Step S4, pressing the second end of the wrenching lever to rotate the sleeve ring by using the wrenching lever.

[0024] As a preferred solution, in the step S2:

[0025] Before "moving each sleeve towards the inside of the sleeve ring", each positioning column is moved out of each first positioning hole;

[0026] "fixing each sleeve on the sleeve ring by using each locking mechanism" comprises moving each sleeve towards the inside of the sleeve ring, so that each second positioning hole is opposite to each positioning column, and each positioning column is inserted into each second positioning hole, respectively;

[0027] The step S4 comprises:

[0028] Step S5, after the maintenance is completed, moving each positioning column out of each second positioning hole, moving each sleeve towards the outside of the collar, so that each first positioning hole is opposite to each positioning column, and inserting each positioning column into each first positioning hole respectively.

[0029] As a preferred solution, in the step S2:

[0030] "Moving each positioning column out of each first positioning hole" includes moving each stop sleeve out of each first positioning hole along the axial direction of each first fastener;

[0031] "Moving each sleeve towards the outside of the collar" includes moving each first fastener along each first sliding groove, and moving each first fastener into each second positioning hole;

[0032] "Inserting each positioning column into each second positioning hole respectively" includes inserting each stop sleeve into each second positioning hole along the axial direction of each first fastener.

[0033] As a preferred solution, in the step S2:

[0034] "Inserting each stop sleeve into each second positioning hole along the axial direction of each first fastener" is followed by screwing the nut at the end of each first fastener, so that the end of each nut is in abutment with the end of each stop sleeve.

[0035] As a preferred solution, in the step S3:

[0036] "Inserting the wrenching rod into the second end of one of the sleeves" includes pressing the pressing head towards the wrenching rod, so that the clamping groove at the first end of the swing rod is away from the groove; then inserting the first end of the wrenching rod into the second end of the sleeve, and inserting the beam-shaped connecting part into the groove; and then releasing the pressing head.

[0037] Compared with the prior art, the present application has the following beneficial effects:

[0038] The present invention relates to a union joint wrench tool, comprising a collar and a wrench rod. The collar is detachably fitted onto the outside of a locking sleeve. Sleeves are inserted at positions on the circumference of the collar opposite to each lug, with the first end of each sleeve facing the center of the collar and fitted onto the outside of each lug. A locking mechanism is connected to each sleeve position on the circumference of the collar for securing the sleeve at that position. The first end of the wrench rod is inserted into the second end of one of the sleeves, and the second end of the wrench rod extends away from the collar. In use, the collar is first fitted onto the outside of the locking sleeve, and each sleeve is adjusted to be opposite to each lug. The sleeves are positioned so that they are moved inwards towards the collar and placed on the outside of the lugs. The locking mechanisms then lock the sleeves, connecting them to the locking sleeves. The wrench is then inserted into the second end of the sleeve, and pressing it rotates the locking sleeve. This eliminates the need to strike the lugs, avoiding vibrations caused by striking them and preventing the adverse effects on pipeline stability caused by striking the lugs during installation or disassembly. Furthermore, each sleeve not only connects the lugs and collar but also connects the wrench, making the union tightening tool of this invention compact and easy to use. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of the union joint wrench tool of the present invention;

[0040] Figure 2 A cross-sectional view showing the collar installed on the outside of the locking sleeve, without the wrench installed;

[0041] Figure 3 A cross-sectional view showing the collar installed on the outside of the locking sleeve, and the wrench rod installed.

[0042] Figure 4 This is a cross-sectional view of the collar in a direction perpendicular to the collar's axis;

[0043] Figure 5 This is a cross-sectional view of the wrench lever in a direction parallel to its axis.

[0044] Figure 6 An isometric view of the connection between the sleeve and the collar when the sleeve extends inward toward the collar.

[0045] Figure 7 This is a schematic diagram showing the structure of the connection between the sleeve and the collar, viewed radially from the inside of the collar.

[0046] Figure 8 for Figure 7 Cross-sectional view along the AA direction;

[0047] Figure 9 This is an exploded view of the connection between the sleeve and the collar.

[0048] Figure 10 First structure diagram of sleeve;

[0049] Figure 11 Second structure diagram of sleeve;

[0050] Figure 12 Axonometric view of sleeve;

[0051] In the figure, 100, locking sleeve, 101, lug, 1, collar, 12, first half ring, 13, second half ring, 11, first mounting hole, 111, second mounting hole, 112, third mounting hole, 2, sleeve, 21, first positioning hole, 22, second positioning hole, 23, first sliding slot, 24, second sliding slot, 3, wrenching rod, 31, groove, 32, protruding part, 4, positioning column, 41, first fastener, 42, stop sleeve, 421, handle part, 43, first nut, 44, beam-shaped connecting part, 51, swing lever, 511, first swing arm, 5111, clamping groove, 512, second swing arm, 5121, pressing head, 52, elastic compression member. DETAILED DESCRIPTION

[0052] The specific embodiments of the present application will be further described in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0053] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", etc. indicate the orientation or positional relationship shown in the drawings, and are only used for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. It should be understood that the terms "first", "second", etc. are used to describe various information in the present application, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, the "first" information can also be referred to as "second" information without departing from the scope of the present application, and similarly, the "second" information can also be referred to as "first" information.

[0054] The present application is a wrenching tool for rotating the locking sleeve 100 of the union joint, the outer peripheral side of the locking sleeve 100 is provided with a plurality of lugs 101, such as Figures 1 to 12As shown, the preferred embodiment of the wrench tool for the union joint of the application comprises a collar 1 and a wrench rod 3, the collar 1 is detachably sleeved outside the locking sleeve 100, the circumferential side of the collar 1 is provided with sleeves 2 at positions opposite to the lugs 101, the first ends of the sleeves 2 are arranged towards the center of the collar 1, and the first ends of the sleeves 2 are respectively sleeved outside the lugs 101; the positions of the collar 1 provided with the sleeves 2 are connected with locking mechanisms for fixing the sleeves 2 at the positions; the first end of the wrench rod 3 is inserted into the second end of one of the sleeves 2, and the second end of the wrench rod 3 extends away from the collar 1. In use, first, the collar 1 is sleeved outside the locking sleeve 100, the sleeves 2 are adjusted to positions opposite to the lugs 101, then the sleeves 2 are moved inside the collar 1 to be sleeved outside the lugs 101, after that, the sleeves 2 are locked by the locking mechanisms, the locking sleeve 100 can be connected with the sleeves 2, after that, the wrench rod 3 is inserted into the second end of the sleeve 2, and the locking sleeve 100 can be rotated by pressing the wrench rod 3, without knocking the lugs 101, avoiding the vibration caused by knocking the lugs 101, avoiding the adverse effects on the stability of the pipeline caused by the way of installing or dismounting the union joint by knocking the lugs 101; moreover, the sleeves 2 not only realize the connection between the lugs 101 and the collar 1, but also realize the connection with the wrench rod 3, so that the wrench tool for the union joint of the application has compact structure and is convenient to use.

[0055] In the embodiment, the hole walls of the first mounting holes 11 are respectively provided with positioning columns 4, and the sleeves 2 are respectively provided with first positioning holes 21 and second positioning holes 22 for the positioning columns 4 to pass through, and the first positioning hole 21 and the second positioning hole 22 on the same sleeve 2 are arranged in the axial direction of the sleeve 2. Specifically, in the embodiment, the first positioning hole 21 and the second positioning hole 22 on the same sleeve 2 are arranged in the axial direction of the sleeve 2. Figure 6As shown, the distance between the first positioning hole 21 and the center of the sleeve 1 is greater than the distance between the second positioning hole 22 and the center of the sleeve 1, when each sleeve 2 is moved to the inside of the sleeve 1 to make each first positioning hole 21 opposite to each positioning column 4, each lug 101 is respectively inserted into each sleeve 2, at this time, inserting the positioning column 4 into the first positioning hole 21 can fix the sleeve 2 with the sleeve 1, so as to ensure that the sleeve 2 is stably sleeved outside the lug 101 when the sleeve 1 is rotated; when each sleeve 2 is moved to the outside of the sleeve 2 to make each second positioning hole 22 opposite to each positioning column 4, each lug 101 is respectively separated from each sleeve 2, at this time, inserting the positioning column 4 into the second positioning hole 22 can make the sleeve 2 keep in the state of being shrunk to the outside of the sleeve 1, so as to ensure that the sleeve 1 is removed from the locking sleeve 100 or the inconvenience caused by the sliding of the sleeve 2 when the sleeve 1 is installed outside the locking sleeve 100.

[0056] Further, in order to facilitate the operator to quickly and accurately insert the positioning column 4 into the first positioning hole 21 and the second positioning hole 22, in the embodiment, each positioning column 4 comprises a first fastener 41 and a blocking sleeve 42 which is slidably sleeved outside the first fastener 41, each first fastener 41 is respectively installed in each first mounting hole 11, the barrel wall of each sleeve 2 is provided with a first sliding groove 23, one end of each first sliding groove 23 is communicated with the first positioning hole 21 located on the sleeve 2, and the other end of each first sliding groove 23 is communicated with the second positioning hole 22 located on the sleeve 2; moving each sleeve 2 can make each first fastener 41 move into each first positioning hole 21 or each second positioning hole 22 from each first sliding groove 23; when each first fastener 41 is located in each first positioning hole 21, moving each blocking sleeve 42 along the axial direction of each first fastener 41 can respectively insert each blocking sleeve 42 into each first positioning hole 21; when each first fastener 41 is located in each second positioning hole 22, moving each blocking sleeve 42 along the axial direction of each first fastener 41 can respectively insert each blocking sleeve 42 into each second positioning hole 22. Specifically, as shown in FIG. 6, the first fastener 41 is provided with a first threaded hole 411, the blocking sleeve 42 is provided with a second threaded hole 421, and the first threaded hole 411 is screwed with the second threaded hole 421. Figures 6 to 12As shown, in this embodiment, the position of the sleeve 2 when the sleeve 2 is sleeved outside the lug 101 is referred to as the working position, and the position of the sleeve 2 when the sleeve 2 is moved to the outside of the sleeve ring 1 to the state that the lug 101 is out of the first end of the sleeve 2 is referred to as the non-working position; the slot width of the first sliding groove 23 is greater than the diameter of the first fastener 41 and smaller than the outside diameter of the stop sleeve 42, and the hole diameter of the first positioning hole 21 and the hole diameter of the second positioning hole 22 are both slightly greater than the outer diameter of the stop sleeve 42; when it is necessary to lock the sleeve 2 in the working position so that the first end of the sleeve 2 is stably sleeved outside the lug 101, the first fastener 41 is first moved into the first positioning hole 21, and then the stop sleeve 42 is moved in the axial direction of the first fastener 41, so that the end of the stop sleeve 42 is inserted into the first positioning hole 21; after the stop sleeve 42 is inserted into the first positioning hole 21, since the slot width of the first sliding groove 23 is smaller than the outer diameter of the stop sleeve 42, the stop sleeve 42 can block the radial movement of the sleeve 2 along the sleeve ring 1, so that the sleeve 2 is stably kept in the working position; when the maintenance work of the union joint is completed and it is necessary to remove the sleeve ring 1 from the outside of the locking sleeve 100, the stop sleeve 42 is first removed from the first positioning hole 21, and then the sleeve 2 is moved to the outside of the sleeve ring 1; during the movement of the sleeve 2, the first fastener 41 enters the second positioning hole 22 through the first sliding groove 23, and when the first fastener 41 abuts against the hole wall of the second positioning hole 22, the operator can clearly judge that the sleeve 2 has been moved to the non-working state; at this time, the operator only needs to fine-tune the position of the sleeve 2 according to the diameter size of the first fastener 41, so as to quickly insert the stop sleeve 42 into the second positioning hole 22 and stably lock the sleeve 2 in the non-working state, which greatly facilitates the operator to quickly lock the sleeve 2 and improves the work efficiency.

[0057] Further, in order to further improve the locking efficiency of the operator on the sleeve 2, in this embodiment, each first positioning hole 21, each second positioning hole 22 and each first sliding groove 23 are arranged on one side of each sleeve 2; each sleeve 2 is provided with a second sliding groove 24 on the other side, the second sliding groove 24 on the same sleeve 2 is arranged opposite to the first positioning hole 21, the first sliding groove 23 and the second positioning hole 22 on the sleeve 2, and each stop sleeve 42 is slidingly inserted into each second sliding groove 24. Specifically, as shown in the drawings, Figure 8 、 Figure 10 、 Figure 11 、 Figure 12As shown, the slot width of the second sliding groove 24 is slightly larger than the outer diameter of the blocking sleeve 42. When it is needed to move the sleeve 2, since the first positioning hole 21 is only arranged on one side of the sleeve 2, the depth of the first positioning hole 21 is shallow, and only a slight movement of the blocking sleeve 42 along the axial direction of the first fastener 41 is needed to make the blocking sleeve 42 move out of the first positioning hole 21, and the blocking sleeve 42 does not need to be moved out of the second sliding groove 24, so that the sleeve 2 can be moved. When the sleeve 2 is moved, the first fastener 41 moves in the first sliding groove 23, and the blocking sleeve 42 moves in the second sliding groove 24. This arrangement can further accelerate the unlocking and locking speed of the sleeve 2 by the operator.

[0058] In order to improve the connection stability of the sleeve 2 and the sleeve ring 1 when the sleeve 2 is locked in the first mounting hole 11, in the embodiment, as shown in Figure 9 , one side of the hole wall of each first mounting hole 11 is provided with a second mounting hole 111 for the first fastener 41 to pass through, and the other side of the hole wall of each first mounting hole 11 is provided with a third mounting hole 112 arranged opposite to the second mounting hole 111, and each blocking sleeve 42 is respectively arranged in each third mounting hole 112. Specifically, the first fastener 41 is in clearance fit with the second mounting hole 111, and the blocking sleeve 42 is in clearance fit with the second mounting hole 111.

[0059] In order to facilitate the operator to move the blocking sleeve 42, in the embodiment, as shown in Figure 7 , Figure 9 , each blocking sleeve 42 is provided with a handle portion 421 protruding outwardly from the blocking sleeve 42 at one end of the sleeve ring 1.

[0060] In the embodiment, each first fastener 41 is a bolt, each bolt is respectively arranged in each blocking sleeve 42 and each second mounting hole 111, and is screwed with a first nut 43. Specifically, by loosening the first nut 43, the distance between the first nut 43 and the screw cap of the first fastener 41 is increased, so that the blocking sleeve 42 can move along the axial direction of the first fastener 41. By tightening the first nut 43, the nut abuts against the end of the blocking sleeve 42, and the nut can apply a constraint to the blocking sleeve 42 to prevent the blocking sleeve 42 from moving along the axial direction of the first fastener 41, so that the blocking sleeve 42 is stably kept at a specific position.

[0061] In the embodiment, as shown in Figure 3 , Figure 5 , Figure 7As shown, each positioning column 4 is arranged through the sleeve 2, and the part of each positioning column 4 located in the barrel cavity of the sleeve 2 forms a beam-shaped connecting part 44; the wrenching rod 3 is a pipe body, and the end of the first end of the wrenching rod 3 is provided with a groove 31 for accommodating the beam-shaped connecting part 44, and the pipe cavity of the wrenching rod 3 is provided with an elastic clamping mechanism arranged close to the groove 31, and the elastic clamping mechanism is provided with a clamping groove 5111 for clamping the beam-shaped connecting part 44. Specifically, the beam-shaped connecting part 44 belongs to a part of the stop sleeve 42, and in the embodiment, the part of the stop sleeve 42 located in the barrel cavity of the sleeve 2 is called the beam-shaped connecting part 44, which facilitates the description of the connection mode of the wrenching rod 3 and the stop sleeve 42; clamping the wrenching rod 3 on the beam-shaped connecting part 44 can avoid the need for workers to frequently install the wrenching rod 3 due to the wrenching rod 3 falling off from the sleeve 2 during use, thereby further improving the use efficiency of the union joint wrenching tool.

[0062] Among them, the implementation mode of the elastic clamping mechanism is various, such as setting an elastic sheet in the pipe cavity of the wrenching rod 3, and in the embodiment, in order to avoid the failure of the elastic sheet structure after a long time of use, the elastic clamping mechanism includes a swing rod 51 and an elastic compression member 52 arranged in the pipe cavity, the first end of the wrenching rod 3 is the upper end, the second end of the wrenching rod 3 is the lower end, the inner side of the cavity wall of the pipe cavity is provided with a protruding part 32 extending into the pipe cavity, the protruding part 32 is located below the groove 31, the middle part of the swing rod 51 is hinged to the protruding part 32, the upper end of the swing rod 51 extends to one side of the groove 31, and the clamping groove 5111 is arranged on the side of the first end of the swing rod 51 facing the groove 31; the lower end of the swing rod 51 extends downward and close to the cavity wall of the pipe cavity and is provided with a pressing head 5121, the pressing head 5121 is arranged at an angle with the second end of the swing rod 51, and the end of the pressing head 5121 away from the swing rod 51 penetrates out of the pipe body; one end of the elastic compression member 52 abuts against the cavity wall of the pipe cavity, the other end of the elastic compression member 52 abuts against the lower end of the swing rod 51, and the elastic compression member 52 and the pressing head 5121 are arranged on the two sides of the swing rod 51, respectively. Specifically, as shown in the figure, Figure 5 In the embodiment, the elastic compression member 52 is a compression spring, the swing rod 51 includes a first swing arm 511 and a second swing arm 512 arranged at an angle, and the connection point of the first swing arm 511 and the second swing arm 512 is hinged to the protruding part 32; during the installation of the wrenching rod 3, the worker presses the pressing head 5121 inward of the wrenching rod 3, which can make the first clamping groove 5111 at the end of the first swing arm 511 away from the beam-shaped connecting part 44, at this time, the beam-shaped connecting part 44 can be inserted into the groove 31; after the beam-shaped connecting part 44 is inserted into the groove 31, the worker releases the pressing head 5121; after the worker releases the pressing head 5121, the second swing arm 512 swings outward of the wrenching rod 3 under the elastic force of the elastic compression member 52, so that the first clamping groove 5111 clamps outside the beam-shaped connecting part 44.

[0063] In the embodiment, Figures 1 to 4As shown, the collar 1 comprises a first half ring 12 and a second half ring 13 which are connected to form a ring body, one end of the first half ring 12 is hinged to one end of the second half ring 13, and the other end of the first half ring 12 and the other end of the second half ring 13 are screwed. In other embodiments of the present application, the collar 1 can be sequentially spliced by a plurality of half ring bodies.

[0064] An embodiment of the method for using the wrench tool for the union joint, comprising the following steps:

[0065] Step S1, installing the collar 1 on the outside of the locking sleeve 100 of the union joint;

[0066] Step S2, moving each sleeve 2 towards the center of the collar 1, so that the first end of each sleeve 2 is respectively sleeved outside the lug 101 of each locking sleeve 100, and each sleeve 2 is fixed on the collar 1 by using the locking mechanism;

[0067] Step S3, inserting the wrench rod 3 into the second end of one of the sleeves 2;

[0068] Step S4, pressing the second end of the wrench rod 3 to rotate the collar 1 by using the wrench rod 3.

[0069] In step S2:

[0070] Before "moving each sleeve 2 towards the inside of the collar 1", each positioning column 4 is moved out of each first positioning hole 21;

[0071] After "fixing each sleeve 2 on the collar 1 by using the locking mechanism", each second positioning hole 22 is opposite to each positioning column 4, and each positioning column 4 is respectively inserted into each second positioning hole 22 by moving each sleeve 2 towards the inside of the collar 1;

[0072] After step S4, it includes:

[0073] Step S5, after the maintenance is completed, each positioning column 4 is moved out of each second positioning hole 22, each sleeve 2 is moved towards the outside of the collar 1, so that each first positioning hole 21 is opposite to each positioning column 4, and each positioning column 4 is respectively inserted into each first positioning hole 21.

[0074] Further, in step S2:

[0075] "Moving each positioning column 4 out of each first positioning hole 21" includes moving each stop sleeve 42 out of each first positioning hole 21 along the axial direction of each first fastener 41;

[0076] "Moving each sleeve 2 towards the inside of the collar 1" includes moving each first fastener 41 along each first sliding groove 23, and moving each first fastener 41 into each second positioning hole 22;

[0077] The "inserting each positioning column 4 into each second positioning hole 22" includes inserting each stop sleeve 42 into each second positioning hole 22 along the axial direction of each first fastener 41.

[0078] Further, in step S2:

[0079] After the "inserting each stop sleeve 42 into each second positioning hole 22 along the axial direction of each first fastener 41", the nuts at the ends of each first fastener 41 are screwed so that the ends of the nuts abut against the ends of each stop sleeve 42.

[0080] In the embodiment, in step S3:

[0081] The "inserting the wrenching rod 3 into the second end of one of the sleeves 2" includes pressing the pressing head 5121 towards the wrenching rod 3 so that the clamping groove 5111 at the first end of the swing lever 51 is away from the groove 31; then inserting the first end of the wrenching rod 3 into the second end of the sleeve 2 so that the beam-shaped connecting part 44 is inserted into the groove 31; and then releasing the pressing head 5121.

[0082] In summary, the wrenching tool for the union joint of the present application comprises a sleeve ring 1 and a wrenching rod 3, the sleeve ring 1 is detachably sleeved outside the locking sleeve 100, sleeves 2 are arranged at positions on the circumferential side of the sleeve ring 1 opposite to the lugs 101, the first ends of the sleeves 2 are arranged towards the center of the sleeve ring 1, and the first ends of the sleeves 2 are respectively sleeved outside the lugs 101; locking mechanisms for fixing the sleeves 2 at the positions on the circumferential side of the sleeve ring 1 where the sleeves 2 are arranged are connected to the positions; the first end of the wrenching rod 3 is inserted into the second end of one of the sleeves 2, and the second end of the wrenching rod 3 extends away from the sleeve ring 1. In use, first, the sleeve ring 1 is sleeved outside the locking sleeve 100, the sleeves 2 are adjusted to positions opposite to the lugs 101, then the sleeves 2 are moved towards the inside of the sleeve ring 1 to be sleeved outside the lugs 101, and then the sleeves 2 are locked by the locking mechanisms, so that the locking sleeve 100 and the sleeves 2 are connected, after that, the wrenching rod 3 is inserted into the second end of the sleeve 2, and the locking sleeve 100 can be rotated by pressing the wrenching rod 3, without knocking the lugs 101, so that the vibration caused by knocking the lugs 101 is avoided, and the adverse effects on the stability of the pipeline caused by the way of installing or dismounting the union joint by knocking the lugs 101 are avoided; moreover, the sleeves 2 not only realize the connection between the lugs 101 and the sleeve ring 1, but also realize the connection with the wrenching rod 3, so that the wrenching tool for the union joint of the present application has a compact structure and is convenient to use.

[0083] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements and replacements without departing from the technical principles of the present application, and these improvements and replacements should also be considered as the protection scope of the present application.

Claims

1. A union joint wrench for rotating a locking sleeve (100) of a union joint, wherein the locking sleeve (100) has a plurality of lugs (101) spaced apart on its outer periphery, characterized in that, The union connector wrench tool includes: A collar (1) is detachably fitted onto the outside of the locking sleeve (100). A sleeve (2) is provided at a position on the periphery of the collar (1) opposite to each of the lugs (101). The first end of each sleeve (2) is arranged toward the center of the collar (1). The first end of each sleeve (2) is fitted onto the outside of each of the lugs (101). A locking mechanism for fixing the sleeve (2) at the position on the periphery of the collar (1) is connected. A wrench rod (3), the first end of which is inserted into the second end of one of the sleeves (2), and the second end of the wrench rod (3) extends away from the collar (1); Each collar (1) is provided with a first mounting hole (11) at the position opposite to each lug (101), and each sleeve (2) is respectively inserted into each of the first mounting holes (11); Each of the first mounting holes (11) has a positioning pin (4) inserted through its hole wall. Each of the sleeves (2) has a first positioning hole (21) and a second positioning hole (22) for each positioning pin (4) to pass through. The first positioning hole (21) and the second positioning hole (22) on the same sleeve (2) are arranged at intervals along the axial direction of the sleeve (2). Each of the positioning posts (4) is arranged through the sleeve (2), and the portion of each positioning post (4) located inside the cavity of the sleeve (2) forms a beam-shaped connecting part (44). The wrench rod (3) is a tube. The first end of the wrench rod (3) is provided with a groove (31) for accommodating the beam-shaped connecting part (44). The tube cavity of the wrench rod (3) is provided with an elastic holding mechanism arranged near the groove (31). The elastic holding mechanism is provided with a slot (5111) for locking the beam-shaped connecting part (44). The elastic holding mechanism includes a rocker arm (51) and an elastic compression member (52) disposed within the cavity. The first end of the lever (3) is the upper end, and the second end is the lower end. A protrusion (32) extending into the cavity is provided on the inner side of the cavity wall. The protrusion (32) is located below the groove (31). The middle part of the rocker arm (51) is hinged to the protrusion (32). The upper end of the rocker arm (51) extends to one side of the groove (31). The locking groove (5111) is disposed at the first end of the rocker arm (51) facing the groove (31). On one side; the lower end of the swing rod (51) extends downward and toward the cavity wall of the tube and is provided with a pressing head (5121). The pressing head (5121) is arranged at an angle with the second end of the swing rod (51). The end of the pressing head (5121) away from the swing rod (51) extends out of the tube body; one end of the elastic compression member (52) abuts against the cavity wall of the tube, and the other end of the elastic compression member (52) abuts against the lower end of the swing rod (51). The elastic compression member (52) and the pressing head (5121) are respectively arranged on both sides of the swing rod (51).

2. The union connector wrench according to claim 1, characterized in that, Each of the positioning posts (4) includes a first fastener (41) and a stop sleeve (42) that is slidably sleeved on the outside of the first fastener (41). Each of the first fasteners (41) is installed in each of the first mounting holes (11). Each of the sleeves (2) has a first groove (23) on its cylindrical wall. One end of each of the first grooves (23) is connected to the first positioning hole (21) on the sleeve (2), and the other end of each of the first grooves (23) is connected to the second positioning hole (22) on the sleeve (2). Moving each of the sleeves (2) allows each of the first fasteners (41) to move from each of the first slide grooves (23) into each of the first positioning holes (21) or each of the second positioning holes (22); when each of the first fasteners (41) is in each of the first positioning holes (21), moving each of the stop sleeves (42) along the axial direction of each of the first fasteners (41) allows each of the stop sleeves (42) to be inserted into each of the first positioning holes (21); when each of the first fasteners (41) is in each of the second positioning holes (22), moving each of the stop sleeves (42) along the axial direction of each of the first fasteners (41) allows each of the stop sleeves (42) to be inserted into each of the second positioning holes (22).

3. The union connector wrench according to claim 2, characterized in that, Each of the first positioning holes (21), each of the second positioning holes (22) and each of the first sliding grooves (23) are respectively provided on one side of each of the sleeves (2); each of the sleeves (2) is provided with a second sliding groove (24) on the other side. The second sliding groove (24) on the same sleeve (2) is arranged opposite to the first positioning hole (21), the first sliding groove (23) and the second positioning hole (22) on the sleeve (2), and each of the stop sleeves (42) is slidably inserted into each of the second sliding grooves (24).

4. The union connector wrench according to claim 2, characterized in that, Each of the first mounting holes (11) has a second mounting hole (111) on one side of its hole wall for the first fastener (41) to pass through, and a third mounting hole (112) is provided on the other side of its hole wall, which is arranged opposite to the second mounting hole (111). Each of the stop sleeves (42) is respectively inserted into each of the third mounting holes (112).

5. The union connector wrench according to claim 4, characterized in that, Each of the stop sleeves (42) has a handle (421) protruding outward from the end of the sleeve (1) outside the collar (1).

6. The union connector wrench according to claim 4, characterized in that, Each of the first fasteners (41) is a bolt, and each bolt is respectively inserted into each of the stop sleeves (42) and each of the second mounting holes (111), and is screwed with a first nut (43).

7. The union connector wrench according to claim 1, characterized in that, The collar (1) includes a first half-ring (12) and a second half-ring (13) that are joined together to form a ring body. One end of the first half-ring (12) is hinged to one end of the second half-ring (13), and the other end of the first half-ring (12) is screwed to the other end of the second half-ring (13).

8. A method of using the union joint wrench as described in any one of claims 1 to 7, characterized in that, Includes the following steps: Step S1: Install the collar (1) on the outside of the locking sleeve (100) of the union joint; Step S2: Move each sleeve (2) toward the center of the collar (1) so that the first end of each sleeve (2) is respectively fitted onto the outside of the lug (101) of each locking sleeve (100), and use each locking mechanism to fix each sleeve (2) onto the collar (1); Step S3: Insert the wrench (3) into the second end of one of the sleeves (2); Step S4: Press the second end of the wrench lever (3) to drive the collar (1) to rotate using the wrench lever (3).

9. The method of using the union joint wrench according to claim 8, characterized in that, In step S2: Before moving each sleeve (2) to the inside of the collar (1), the positioning pin (4) is moved out of each first positioning hole (21); Fixing each sleeve (2) on the collar (1) using each locking mechanism includes moving each sleeve (2) to the inside of the collar (1) so that each second positioning hole (22) is opposite to each positioning post (4) and inserting each positioning post (4) into each second positioning hole (22). After step S4, the following is included: Step S5: After maintenance is completed, remove each of the positioning pins (4) from each of the second positioning holes (22), move each of the sleeves (2) to the outside of the collar (1) so that each of the first positioning holes (21) is opposite to each of the positioning pins (4), and insert each of the positioning pins (4) into each of the first positioning holes (21).

10. The method of using the union joint wrench according to claim 9, characterized in that, Each of the positioning posts (4) includes a first fastener (41) and a stop sleeve (42) that is slidably sleeved on the outside of the first fastener (41). Each of the first fasteners (41) is installed in each of the first mounting holes (11). Each of the sleeves (2) has a first groove (23) on its cylindrical wall. One end of each of the first grooves (23) is connected to the first positioning hole (21) on the sleeve (2), and the other end of each of the first grooves (23) is connected to the second positioning hole (22) on the sleeve (2). Moving each of the sleeves (2) allows each of the first fasteners (41) to move from each of the first slide grooves (23) into each of the first positioning holes (21) or each of the second positioning holes (22); when each of the first fasteners (41) is in each of the first positioning holes (21), moving each of the stop sleeves (42) along the axial direction of each of the first fasteners (41) allows each of the stop sleeves (42) to be inserted into each of the first positioning holes (21); when each of the first fasteners (41) is in each of the second positioning holes (22), moving each of the stop sleeves (42) along the axial direction of each of the first fasteners (41) allows each of the stop sleeves (42) to be inserted into each of the second positioning holes (22). In step S2: Removing each positioning pin (4) from each first positioning hole (21) includes removing each stop sleeve (42) from each first positioning hole (21) along the axial direction of each first fastener (41); Moving each sleeve (2) to the inside of the collar (1) includes moving each first fastener (41) along each first slide groove (23) and moving each first fastener (41) into each second positioning hole (22); Inserting each of the positioning pins (4) into each of the second positioning holes (22) includes inserting each stop sleeve (42) into each of the second positioning holes (22) along the axial direction of each of the first fasteners (41).

11. The method of using the union joint wrench according to claim 10, characterized in that, In step S2: After inserting each stop sleeve (42) into each second positioning hole (22) along the axial direction of each first fastener (41), the process includes screwing the nuts at the ends of each first fastener (41) such that the ends of each nut abut against the ends of each stop sleeve (42).

12. The method of using the union joint wrench according to claim 8, characterized in that, In step S3: Inserting the lever (3) into the second end of one of the sleeves (2) includes pressing the pressing head (5121) into the lever (3) so that the slot (5111) at the first end of the lever (51) moves away from the groove (31); then inserting the first end of the lever (3) into the second end of the sleeve (2) and inserting the beam-shaped connecting part (44) into the groove (31); and then releasing the pressing head (5121).

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