A quick-release union device

Abstract

The present invention discloses a quick-release union device, comprising: a first gear and a second gear; the first gear and the second gear are coaxially rotatably arranged and are of equal size; the geometric centers of the first gear and the second gear are through-hole structures, and an opening connected to the through-hole structures is provided on the outer periphery of one side thereof; a clamping block is provided on the outer periphery of the through-hole structure of the first gear; a gear bar is provided on one side of the first gear; the gear bar is flush with the gear groove of the first gear and aligned with the gear groove of the second gear; the gear groove of the first gear is provided with an inwardly recessed empty groove; and a running gear is provided on one side of the first gear and the second gear for meshing. Compared with the prior art, the present invention has the following advantages: the union can be quickly assembled and disassembled using a fully mechanical automated structure without requiring a large amount of labor; the device has a simple structure, is easy to operate and use, and can greatly improve work efficiency.

Description

Technical Field

[0001] The invention belongs to the field of quick-release unions, and in particular relates to a quick-release union device. Background Art

[0002] Union, also known as flexible joint, is a common pipe connector that can be easily installed and disassembled.

[0003] Currently, the high-pressure unions used in oil fracturing equipment are typically installed and removed manually by hammering, with no alternative electrified or automated tooling available. This approach has the following drawbacks: First, manually installing and removing the unions with a sledgehammer is very physically demanding for the operator; second, manual hammering requires space for swinging the hammer, which limits the required operating space; and third, the high-pressure unions in oil fracturing equipment are densely distributed and numerous, making carrying a sledgehammer to operate them inconvenient and inefficient. Summary of the Invention

[0004] The details of one or more embodiments of the invention are set forth in the following drawings and description to make other features, objects, and advantages of the application more readily apparent.

[0005] The present invention provides a union quick-disassembly device, which adopts a fully mechanical and automated structure to realize the rapid disassembly and assembly of the union without requiring a large amount of labor. At the same time, the device has a simple structure, is easy to operate and use, and can greatly improve work efficiency.

[0006] The present invention discloses a union quick-release device, comprising:

[0007] A first gear and a second gear; the first gear and the second gear are coaxially rotatable and equal in size, and have gear grooves on their outer circumferences; a through-hole structure is formed at the geometric center of the first gear and the second gear, and an opening is provided on the outer circumference of one side thereof, communicating with the through-hole structure; a block is provided on the outer circumference of the through-hole structure of the first gear for abutting against the external protrusion structure of the union; a gear bar is provided on one side of the first gear; the gear groove at the outer end of the gear bar is flush with the gear groove of the first gear and aligned with the gear groove of the second gear; the gear groove of the first gear is provided with an inwardly recessed hollow groove;

[0008] A traveling gear, meshing with and disposed on one side of the first gear and the second gear;

[0009] By placing the traveling gear in the empty slot of the first gear, the traveling gear is only engaged with the second gear, and then the end edge of the second gear abuts against the end edge of the gear bar, so that the traveling gear can synchronously engage and drive the first gear and the second gear.

[0010] In some embodiments, the first gear and the second gear are arranged in close contact with each other, and a rotation guide device is provided between the contact points of the first gear and the second gear.

[0011] In some embodiments, the rotary steerable device comprises:

[0012] a slide groove, provided on the first gear;

[0013] a slider, disposed on the second gear;

[0014] The sliding groove and the sliding block are slidably engaged and connected.

[0015] In some embodiments, there are a plurality of the card blocks, and gaps are provided between adjacent card blocks.

[0016] In some embodiments, further comprising:

[0017] The first auxiliary gear and the second auxiliary gear are coaxially arranged at the outer periphery of the first gear and the second gear and mesh with each other respectively.

[0018] In some embodiments, there are four first auxiliary gears and four second auxiliary gears, which are evenly distributed on the outer periphery of the first gear and the second gear.

[0019] In some embodiments, further comprising:

[0020] The outer cover is arranged outside the first gear, the second gear, the first auxiliary gear and the second auxiliary gear.

[0021] In some embodiments, further comprising:

[0022] The transmission cover is arranged on one side of the outer cover body; a transmission mechanism for driving the travel gear to rotate is arranged in the transmission cover.

[0023] In some embodiments, the transmission mechanism includes:

[0024] A reduction gear, coaxially connected to the travel gear;

[0025] A transmission gear meshes with the reduction gear, and the transmission gear is coaxially connected to a transmission helical gear;

[0026] The external drive shaft is used for externally connecting to the rotating motor and is coaxially connected with a driving helical gear; the driving helical gear and the transmission helical gear are meshed.

[0027] In some embodiments, further comprising:

[0028] A wedge block, with the outer end surface of the first gear as a reference, one side of which is a sliding surface arranged in an inclined structure, and the other side is a positioning surface;

[0029] A guide block is installed on the inner end surface of the outer cover through a spring and contacts the first gear and passes through the wedge block;

[0030] One end of the guide block is provided with an arc chamfer, so that the guide block can slide through the wedge block through the sliding surface and one side of the arc chamfer; the other end of the guide block is provided with a clamping surface, so that the guide block cannot pass through the wedge block through the positioning surface and one side of the clamping surface, and when the positioning surface and the clamping surface are in abutment with each other, the traveling gear is located in the empty groove.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The idle rotation of the travel gear and the slot enables the independent movement of the second gear, thereby closing and opening the opening between the first and second gears. This allows the pipe and union to be installed and fixed. The second gear then rotates and abuts against the first gear, ultimately achieving installation and removal of the union. This structure utilizes fully automated mechanical control, improving the traditional manual operation of hammering and significantly increasing work efficiency.

[0033] 2. The device has a compact overall structure and a reliable driving relationship. It adopts a multi-stage gear structure design to achieve the functions of speed reduction and torque amplification, making the speed of the union disassembly process controllable. The torque is large enough and the gear transmission efficiency is high, so the tool transmission efficiency is higher and the transmission effect is more reliable.

[0034] 3. The whole equipment adopts a portable structure design, which does not require space for swinging the hammer and has a small demand for operating space, making it easy to operate in a small space.

[0035] 4. The corresponding wedge block and guide block structure are set to realize one-way rotation limit, so as to facilitate the reset adjustment of the initial state position of the equipment to ensure normal use next time. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0037] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0038] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0039] Figure 3 It is a schematic diagram of the three-dimensional structure of the first gear of the present invention.

[0040] Figure 4 It is a schematic diagram of the three-dimensional structure of the wedge block of the present invention.

[0041] Figure 5 It is a schematic diagram of the three-dimensional structure of the second gear of the present invention.

[0042] Figure 6 It is a schematic diagram of the three-dimensional structure of the guide block of the present invention.

[0043] Figure 7 It is a schematic diagram of the three-dimensional structure of the outer cover and the transmission cover of the present invention.

[0044] Figure 8 This is a schematic structural diagram of the initial state of the present invention when not in use.

[0045] Description of the drawings: first gear 1, second gear 2, gear bar 3, block 4, opening 5, empty slot 6, traveling gear 7, reduction gear 8, transmission gear 9, external drive shaft 10, driving bevel gear 11, transmission bevel gear 12, first auxiliary gear 13, second auxiliary gear 14, slide 15, slider 16, wedge 17, guide block 18, spring 19, outer cover 20, transmission cover 21. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0047] Obviously, the drawings described below are merely examples or embodiments of the present invention. Those skilled in the art can apply the present invention to other similar scenarios based on these drawings without inventive effort. Furthermore, it is understood that while the effort involved in such a development process may be complex and lengthy, for those skilled in the art related to the disclosure of the present invention, any design, manufacturing, or production changes based on the technical content disclosed in the present invention are merely conventional technical means and should not be construed as an inadequacy of the disclosure of the present invention.

[0048] References to "embodiments" in this disclosure mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the disclosure. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this disclosure may be combined with other embodiments, unless there is a conflict.

[0049] A quick-release union device, comprising: a first gear 1, a second gear 2, and a travel gear 7; wherein the first gear 1 and the second gear 2 are coaxially rotatable and of equal size, and are provided with a gear groove on their outer periphery; the geometric centers of the first gear 1 and the second gear 2 are through-hole structures, and an opening 5 connected to the through-hole structure is provided on the outer periphery of one side; a clamping block 4 for abutting against the external protrusion structure of the union is provided on the outer periphery of the through-hole structure of the first gear 1; a gear bar 3 is provided on one side of the first gear 1; a gear groove at the outer end of the gear bar 3 It is flush with the gear groove of the first gear 1 and aligned with the gear groove of the second gear 2; the gear groove of the first gear 1 is provided with an inwardly recessed empty groove 6; the traveling gear 7 is arranged on one side of the first gear 1 and the second gear 2 for meshing; by positioning the traveling gear 7 in the empty groove 6 of the first gear 1, the traveling gear 7 is only engaged with the second gear 2, and then the end edge of the second gear 2 is abutted against the end edge of the gear bar 3, so as to realize the synchronous meshing drive of the first gear 1 and the second gear 2 by the traveling gear 7.

[0050] Specifically, Figure 8 As shown, the device is in an unused state, and the left ends of the second gear 2 and the gear bar 3 are in contact (with Figure 8 As a reference), the first gear 1 and the second gear 2 are in a closed loop state as a whole, and the equipment has not been used yet. When it is necessary to operate, the travel gear 7 rotates to drive the second gear 2 to engage and rotate. At this time, the travel gear 7 is in the empty slot 6 of the first gear 1, so it will not drive the first gear 1 to rotate until the second gear 2 rotates to the right end of the gear bar 3 (with Figure 8 As a reference), the openings 5 ​​of the first gear 1 and the second gear 2 coincide with each other, so that the whole is in an open state (reference Figure 1 As shown), the union can be installed and inserted into the block 4. After the locking is completed, the traveling gear 7 drives the second gear 2 to rotate counterclockwise (as shown). Figure 1 、 Figure 2As a reference, the second gear 2 will drive the first gear 1 to rotate counterclockwise by abutting against it, so that the traveling gear 7 is no longer trapped in the empty slot 6 and meshes with the gear slot of the first gear 1. At this time, the traveling gear 7 starts to synchronously drive the first gear 1 and the second gear 2 to rotate clockwise, thereby driving the union to rotate and complete the fastening / unfastening operation.

[0051] In the above structure, different buckle making and breaking operations can be achieved by rotating the traveling gear 7 forward and reverse.

[0052] Similarly, the traveling gear 7 can also be made to rotate in the same rotation direction all the time. In this case, the bolting / unbolting operation can be achieved by only changing the installation direction of the union.

[0053] In some embodiments, since in the above process, the second gear 2 will drive the first gear 1 to move through its own rotational displacement, not only the compactness of the equipment structure but also the guidance during the rotation process are taken into consideration. Therefore, the first gear 1 and the second gear 2 are arranged in close proximity and a rotation guide device is provided between the contact point between the two.

[0054] Furthermore, the rotary guide device includes a chute 15 and a slider 16. The chute 15 is provided on the first gear 1, and the slider 16 is provided on the second gear 2. The chute 15 and the slider 16 are connected by a sliding, engaging engagement. Similarly, the chute 15 can also be installed on the second gear 2, and the slider 16 can be installed on the first gear 1. Specifically, the chute 15 and the slider 16 both have an annular structure.

[0055] In some embodiments, the block 4 is provided in plurality and a gap is provided between adjacent blocks 4. Generally, the high pressure union has three protrusions, so the corresponding block 4 is also provided with three, for specific reference. Figure 1 、 2 At the same time, gaps are provided between adjacent clamping blocks 4, so as to facilitate staggered fit between the clamping blocks 4 and the protrusions of the union, thereby achieving rotational abutment.

[0056] In some embodiments, the system further includes: a first auxiliary gear 13 and a second auxiliary gear 14, which are coaxially disposed on the outer peripheries of the first gear 1 and the second gear 2 and mesh with each other. Preferably, four first auxiliary gears 13 and four second auxiliary gears 14 are each provided, and are evenly distributed on the outer peripheries of the first gear 1 and the second gear 2.

[0057] Reference Figure 1 、 2As shown, the first auxiliary gear 13 and the second auxiliary gear 14 are coaxially arranged and mesh with the first gear 1 and the second gear 2 respectively to ensure that they do not affect each other during the transmission process, and the first auxiliary gear 13 and the second auxiliary gear 14 are used to limit the rotation of the first gear 1 and the second gear 2.

[0058] In some embodiments, the system further includes an outer housing 20 and a transmission housing 21. The outer housing 20 is disposed outside the first gear 1, the second gear 2, the first auxiliary gear 13, and the second auxiliary gear 14. The transmission housing 21 is disposed on one side of the outer housing 20. The transmission housing 21 houses a transmission mechanism for rotating the travel gear 7. The outer housing 20 and transmission housing 21 protect the internal components.

[0059] In some embodiments, the transmission mechanism includes: a reduction gear 8, a transmission gear 9, and an external drive shaft 10, the reduction gear 8 is coaxially connected to the traveling gear 7; the transmission gear 9 is meshed with the reduction gear 8, and the transmission gear 9 is coaxially connected to a transmission bevel gear 12; the external drive shaft 10 is used for an external rotating motor, and is coaxially connected to a drive bevel gear 11; the drive bevel gear 11 is meshed with the transmission bevel gear 12.

[0060] The multi-stage gear drive structure achieves the functions of speed reduction and torque amplification, making the union disassembly process speed controllable, the torque large enough, and the gear transmission efficiency high, so the tool transmission efficiency is higher and the transmission effect is more reliable.

[0061] In some embodiments, it also includes: a wedge block 17 and a guide block 18; the wedge block 17 is based on the outer end face of the first gear 1, one side of which is a sliding surface arranged in an inclined structure, and the other side is a positioning surface; the guide block 18 is installed at the inner end face of the outer cover body 20 through a spring 19 and abuts against the first gear 1, and passes through the wedge block 17; one end of the guide block 18 is provided with an arc chamfer, so that the guide block 18 can slide through the wedge block 17 through the sliding surface and one side of the arc chamfer; the other end of the guide block 18 is provided with a clamping surface, so that the guide block 18 cannot pass through the wedge block 17 through the positioning surface and one side of the clamping surface, and when the positioning surface and the clamping surface are in abutment, the traveling gear is located in the empty slot.

[0062] The main function of providing the wedge block 17 and the guide block 18 is to reset the first gear 1 and the second gear 2 .

[0063] The above structure adopts a single-direction rotation drive in the normal working state, that is, during the process of fastening / unfastening. The specific difference in the fastening / unfastening process is that the union is installed through the front or the back.

[0064] like Figure 1 and Figure 2 As shown, during the process of making / breaking the buckle, the first gear 1 rotates counterclockwise ( Figure 1 Figure 2 As a reference), the guide block 18 and the spring 19 are fixedly mounted on the inner end face of the outer cover 20. In the counterclockwise rotation state, the guide block 18 can continuously pass through the sliding surface of the wedge block 17, thereby ensuring the normal operation of the counterclockwise rotation of the first gear 1 and the normal operation of the buckle-on / off process. After completing the buckle-on / off operation, the position of the traveling gear 7 and the empty slot 6 needs to be reset. At this time, the first gear 1 rotates clockwise until the positioning surface of the wedge block 17 abuts against the engaging surface of the guide block 18, at which point the traveling gear 7 is exactly located in the empty slot 6. Among them, the positioning surface of the wedge block 17 is preferably structured to be perpendicular to the structural surface of the first gear 1, and the engaging surface of the guide block 18 is adapted to the positioning surface of the wedge block 17 and is also perpendicular to the structural surface of the first gear 1.

[0065] Its working principle is:

[0066] In the initial state, if Figure 8 As shown, the rotary motor connected to the external drive shaft 10 rotates, and under the action of the travel gear 7, the first gear 1 and the second gear 2 rotate until the engaging surface of the guide block 18 abuts against the positioning surface of the wedge block 17, and the first gear 1 can no longer rotate clockwise (as shown in FIG. Figure 1 As a reference), the traveling gear 7 is located in the empty slot 6 in the first gear 1, and the second gear 2 continues to rotate, so that the openings 5 ​​of the first gear 1 and the second gear 2 overlap and realize the open state, so that the union can be installed on the clamping block 4 therein.

[0067] In the working state, the traveling gear 7 starts to drive the second gear 2 to rotate counterclockwise (with Figure 1 As a benchmark), since at this time Figure 1 In the state, the traveling gear 7 is located in the empty slot 6 of the first gear 1. Therefore, the traveling gear 7 can only drive the second gear 2 to rotate until the second gear 2 begins to abut against the gear bar 3 on the first gear 1 (this state refers to Figure 8 As shown), the first gear 1 is driven to rotate, so that the traveling gear 7 is disengaged from the empty slot 6 of the first gear 1 and begins to mesh with the first gear 1, thereby synchronously driving the first gear 1 and the second gear 2 to rotate, and then the union is installed / disassembled through the cooperation of the clamping block 4.

[0068] After the installation / disassembly is completed, the union is removed from the block 4 in the axial direction, and then the second gear 2 is driven clockwise (to Figure 1As a reference), the clamping surface of the guide block 18 abuts against the positioning surface of the wedge block 17, so that the travel gear 7 is reset in the empty slot 6 and the first gear 1 and the second gear 2 are reset to the open structure. At this time, the union can be removed through the opening 5 where the first gear 1 and the second gear 2 overlap.

[0069] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quick-release union device, characterized in that: include: A first gear and a second gear; the first gear and the second gear are coaxially rotatable and equal in size, and have gear grooves on their outer circumferences; the geometric centers of the first gear and the second gear are through-hole structures, and an opening is provided on the outer circumference of one side thereof, which communicates with the through-hole structures; a block is provided on the outer circumference of the through-hole structure of the first gear for abutting against the external protrusion structure of the union; a gear bar is provided on one side of the first gear; the gear groove at the outer end of the gear bar is flush with the gear groove of the first gear and aligned with the gear groove of the second gear; the gear groove of the first gear is provided with an inwardly recessed hollow groove; A traveling gear, meshing with and disposed on one side of the first gear and the second gear; By placing the traveling gear in the empty slot of the first gear, the traveling gear is only engaged with the second gear, and then the end edge of the second gear abuts against the end edge of the gear bar, so that the traveling gear can synchronously engage and drive the first gear and the second gear.

2. The union quick release device according to claim 1, characterized in that: The first gear and the second gear are arranged in close contact with each other, and a rotation guide device is provided between the contacting parts of the two gears.

3. The quick-release union device according to claim 2, characterized in that: The rotary guide device comprises: a slide groove, provided on the first gear; a slider, disposed on the second gear; The sliding groove and the sliding block are slidably engaged and connected.

4. The quick-release union device according to claim 1, characterized in that: There are a plurality of card blocks, and gaps are provided between adjacent card blocks.

5. The quick-release union device according to claim 1, characterized in that: Also includes: The first auxiliary gear and the second auxiliary gear are coaxially arranged at the outer periphery of the first gear and the second gear and mesh with each other respectively.

6. The quick-release union device according to claim 5, characterized in that: There are four first auxiliary gears and four second auxiliary gears, which are evenly distributed on the outer periphery of the first gear and the second gear.

7. The quick-release union device according to claim 5, characterized in that: Also includes: The outer cover is arranged outside the first gear, the second gear, the first auxiliary gear and the second auxiliary gear.

8. The quick-release union device according to claim 7, characterized in that: Also includes: The transmission cover is arranged on one side of the outer cover body; a transmission mechanism for driving the travel gear to rotate is arranged in the transmission cover.

9. The union quick release device according to claim 8, characterized in that: The transmission mechanism comprises: A reduction gear, coaxially connected to the travel gear; A transmission gear meshes with the reduction gear, and the transmission gear is coaxially connected to a transmission helical gear; The external drive shaft is used for externally connecting to the rotating motor and is coaxially connected with a driving helical gear; the driving helical gear and the transmission helical gear are meshed.

10. The union quick release device according to claim 7, characterized in that: Also includes: A wedge block, with the outer end surface of the first gear as a reference, one side of which is a sliding surface arranged in an inclined structure, and the other side is a positioning surface; A guide block is installed on the inner end surface of the outer cover through a spring and contacts the first gear and passes through the wedge block; One end of the guide block is provided with an arc chamfer, so that the guide block can slide through the wedge block through the sliding surface and one side of the arc chamfer; the other end of the guide block is provided with a clamping surface, so that the guide block cannot pass through the wedge block through the positioning surface and one side of the clamping surface, and when the positioning surface and the clamping surface are in abutment with each other, the traveling gear is located in the empty groove.

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