Pulley device suitable for various wellhead diameters
The slide wheel device addresses the inefficiencies and wear issues in deploying equipment in wells of varying diameters by providing a versatile and adjustable mechanism for secure attachment, enhancing operational efficiency and reducing costs.
Patent Information
- Application Number
- CN202422446492.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-10-10
AI Technical Summary
In water source wells in the northern Loess Plateau area, the equipment is time-consuming and labor-intensive and easy to wear, making it difficult to adapt to the underground operation needs of multiple wellhead diameters.
A pulley device suitable for a variety of wellhead diameters is designed, including external and internal U-shaped brackets, equipped with pulley main body, guide groove, sliding support block and fixing rod. The well diameter is read through the scale line, the bracket length is adjusted to adapt to different wellhead conditions, and the pulley main body is fixed using pulley fixing rod and bracket fixing hole to prevent the bracket from deformation.
It realizes that the equipment is offline to save time and effort, reduces wear, improves work efficiency and reduces costs.
Smart Images
Figure CN223102602U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of groundwater level measuring equipment, in particular to a pulley device applicable to various wellhead diameters. Background Technique
[0002] Groundwater is an important part of water resources. Especially in the arid and semi-arid loess plateau areas in northern China, groundwater is even the only water supply source. Water source wells are the most common water intake facilities. During the processes of well completion, use, maintenance and management of water source wells, it is usually necessary to carry out water level measurement, depth determination sampling, downhole fishing, etc. In scientific research related to hydrogeology, work such as downhole imaging and downhole flow velocity and direction measurement is often carried out. Therefore, during the use of water source wells, equipment such as water level gauges, sensors, flow velocity and direction meters or depth determination samplers are usually lowered into the wells irregularly.
[0003] Controlled by the combined action of the formation sedimentary environment and geological structure, large well deviation and large buried depth of groundwater level have become the remarkable characteristics of water source wells in the loess plateau areas in northern China. Therefore, when carrying out work such as groundwater level measurement, downhole fishing, and downhole imaging, the wire length and self-weight of the devices lowered into the well are large, resulting in a major problem that the device lowering is time-consuming, laborious and easy to cause wear to the equipment wire body in field work. Therefore, a pulley device applicable to various wellhead diameters is proposed, which can cope with wellhead conditions of various diameters at the same time, can effectively reduce the wear on the equipment and wire body, save time and effort, have low cost, and improve work efficiency. Content of the Utility Model
[0004] Aiming at the deficiencies of the prior art, the utility model provides a pulley device applicable to various wellhead diameters, which can cope with wellhead conditions of various diameters at the same time, solves the problems of time-consuming, laborious and easy to cause wear to the equipment wire body during the process of lowering devices such as groundwater level measurement, downhole fishing, and downhole imaging, and has the advantages of saving time and effort, low cost, and significantly improving work efficiency.
[0005] In order to achieve the above object, the present application adopts the following technical solution: A pulley device applicable to various wellhead diameters, including an external U-shaped bracket and an internal U-shaped bracket. A pulley main body is installed inside the external U-shaped bracket and the internal U-shaped bracket. Two guide grooves are provided on the surfaces of the external U-shaped bracket and the internal U-shaped bracket. Sliding support blocks are slidably connected to both ends inside the guide grooves. A pulley fixing hole is provided on the surface of the pulley main body. A plurality of bracket fixing holes are provided on the surfaces of the external U-shaped bracket and the internal U-shaped bracket. A pulley fixing rod is slidably connected inside the bracket fixing hole and extends into the pulley fixing hole. The other end of the pulley fixing rod is threadedly connected with a first nut.
[0006] Preferably, limiting plates are fixed to both ends of the sliding support block, and the opposite surfaces of the limiting plates are in contact with the external U-shaped bracket and the internal U-shaped bracket.
[0007] Preferably, two support fixing rods are slidably connected inside the external U-shaped bracket and the internal U-shaped bracket, and are both located on both sides of the pulley body. The surface of the support fixing rod is slidably connected to the inside of the support fixing hole, and the other end of the support fixing rod is threadedly connected with a second nut.
[0008] Preferably, the support fixing rod is composed of multiple iron rods.
[0009] Preferably, a cross-section is provided on the outer side of the pulley body, and the cross-section is a fan-shaped structure.
[0010] Preferably, well wall fixing blocks are fixed to one end of the external U-shaped bracket and the internal U-shaped bracket, and well wall clamping grooves are formed at the bottom of the well wall fixing blocks.
[0011] Preferably, scale lines are provided on the surfaces of the external U-shaped bracket and the internal U-shaped bracket.
[0012] The technical effects and advantages of the present utility model:
[0013] In the present utility model, after the external U-shaped bracket and the internal U-shaped bracket are placed at the well wall opening, the well diameter is read according to the scale lines on the external U-shaped bracket and the internal U-shaped bracket. Subsequently, the external U-shaped bracket and the internal U-shaped bracket can be pushed, and the guide groove and the sliding support block are used to maintain the movement path of the external U-shaped bracket and the internal U-shaped bracket. Then, a suitable position is selected for equipment laying, and it is judged whether the diameter of the laid equipment can be smoothly lowered into the well. Next, a pulley body with a suitable diameter is selected according to the well diameter and the diameter of the equipment wire body, and the pulley body is fixed to the external U-shaped bracket and the internal U-shaped bracket through the pulley fixing rod, and the two support fixing rods are inserted into the support fixing holes on both sides of the pulley body to prevent the external U-shaped bracket and the internal U-shaped bracket from deforming due to excessive force. The above structure is small in size, flexible and simple to operate. The lengths of the external U-shaped bracket and the internal U-shaped bracket can be adjusted according to the diameter of the on-site wellhead, so as to cope with wellhead conditions of various diameters, saving time and effort, having low cost, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is the front view structural schematic diagram of the present utility model;
[0015] Figure 2 is the disassembled structural schematic diagram of the present utility model;
[0016] Figure 3 is the structural schematic diagram of the pulley body of the present utility model;
[0017] Figure 4 Schematic diagram of the wellbore support structure of the present utility model.
[0018] Legend: 1. External U-shaped bracket; 2. Internal U-shaped bracket; 3. Pulley body; 4. Guide groove; 5. Sliding support block; 6. Pulley fixing rod; 7. Pulley fixing hole; 8. First nut; 9. Limiting plate; 10. Bracket fixing rod; 11. Second nut; 12. Cross-section; 13. Wellbore fixing block; 14. Wellbore clamping groove; 15. Scale line; 16. Bracket fixing hole. Detailed implementation manners
[0019] Now, with reference to the accompanying drawings and preferred embodiments, the present utility model will be further described in detail. These drawings are all simplified schematic diagrams, only showing the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.
[0020] Refer to Figures 1 - 4 As shown, the present utility model provides a technical solution: a pulley device applicable to various wellhead diameters, including an external U-shaped bracket 1 and an internal U-shaped bracket 2. A pulley body 3 is installed inside the external U-shaped bracket 1 and the internal U-shaped bracket 2. Two guide grooves 4 are provided on the surfaces of both the external U-shaped bracket 1 and the internal U-shaped bracket 2. Sliding support blocks 5 are slidably connected to both ends inside the guide grooves 4. A pulley fixing hole 7 is provided on the surface of the pulley body 3. A plurality of bracket fixing holes 16 are provided on the surfaces of both the external U-shaped bracket 1 and the internal U-shaped bracket 2. A pulley fixing rod 6 is slidably connected inside the bracket fixing hole 16 and extends into the pulley fixing hole 7. The other end of the pulley fixing rod 6 is threadedly connected with a first nut 8. After the external U-shaped bracket 1 and the internal U-shaped bracket 2 are placed at the wellbore opening, the well diameter is read according to the scale lines 15 on the external U-shaped bracket 1 and the internal U-shaped bracket 2. Then, the external U-shaped bracket 1 and the internal U-shaped bracket 2 can be pushed, and the guide grooves 4 and the sliding support blocks 5 are used to keep the moving paths of the external U-shaped bracket 1 and the internal U-shaped bracket 2. Then, a suitable position is selected for equipment offloading, and it is judged whether the diameter of the offloaded equipment can be smoothly lowered into the well. Then, a pulley body 3 with a suitable diameter is selected according to the well diameter and the diameter of the equipment wire body. The pulley body 3 is fixed on the external U-shaped bracket 1 and the internal U-shaped bracket 2 through the pulley fixing rod 6, and two bracket fixing rods 10 are inserted into the bracket fixing holes 16 on both sides of the pulley body 3 to prevent the external U-shaped bracket 1 and the internal U-shaped bracket 2 from deforming due to excessive force. The above structure is small in size, flexible and easy to operate. It can adjust the lengths of the external U-shaped bracket 1 and the internal U-shaped bracket 2 according to the on-site wellhead diameter, so as to cope with wellhead conditions of various calibers, saving time and effort, having low cost, and improving work efficiency.
[0021] Refer to Figure 2As shown in the figure, in this embodiment: Limit plates 9 are fixed at both ends of the sliding support block 5, and the opposite surfaces of the limit plates 9 are in contact with the external U-shaped bracket 1 and the internal U-shaped bracket 2. By providing the limit plates 9, it can be ensured that when the user moves the external U-shaped bracket 1 and the internal U-shaped bracket 2, the sliding support block 5 will not shift, causing the external U-shaped bracket 1 and the internal U-shaped bracket 2 to separate, thereby improving stability.
[0022] Refer to Figure 2 As shown in the figure, in this embodiment: Two bracket fixing rods 10 are slidably connected inside the external U-shaped bracket 1 and the internal U-shaped bracket 2, and are both located on both sides of the pulley body 3. The surface of the bracket fixing rod 10 is slidably connected to the inside of the bracket fixing hole 16, and the other end of the bracket fixing rod 10 is threadedly connected with a second nut 11. By providing the structure of the bracket fixing rod 10 and the second nut 11, the external U-shaped bracket 1 and the internal U-shaped bracket 2 can be strengthened in stability, preventing the external U-shaped bracket 1 and the internal U-shaped bracket 2 from deforming due to the excessive self-weight of the equipment wire body.
[0023] Refer to Figure 2 As shown in the figure, in this embodiment: The bracket fixing rod 10 is composed of multiple iron rods. By designing the bracket fixing rod 10 to be composed of multiple iron rods, the load-bearing capacity of the bracket fixing rod 10 is improved.
[0024] Refer to Figure 3 As shown in the figure, in this embodiment: A cross-section 12 is provided on the outer side of the pulley body 3, and the cross-section 12 is a fan-shaped structure. By providing the cross-section 12 and using the fan-shaped structure of the cross-section 12, the wire body can be protected to avoid wear of the wire body.
[0025] Refer to Figure 4 As shown in the figure, in this embodiment: Wall fixing blocks 13 are fixed at one end of the external U-shaped bracket 1 and the internal U-shaped bracket 2, and a wall slot 14 is provided at the bottom of the wall fixing block 13. By providing the wall fixing blocks 13, the external U-shaped bracket 1 and the internal U-shaped bracket 2 can be clamped on the wall pipe.
[0026] Refer to Figure 1 and Figure 2 As shown in the figure, in this embodiment: Scale lines 15 are provided on the surfaces of the external U-shaped bracket 1 and the internal U-shaped bracket 2. By providing the scale lines 15, the well diameter size can be directly read according to the scale lines 15, improving work efficiency.
[0027] Working principle: After the user places the external U-shaped bracket 1 and the internal U-shaped bracket 2 at the wellbore opening, the well diameter can be read according to the scale lines 15 on the external U-shaped bracket 1 and the internal U-shaped bracket 2. Subsequently, the external U-shaped bracket 1 and the internal U-shaped bracket 2 can be pushed. The guiding grooves 4 and the sliding support blocks 5 are used to keep the moving paths of the external U-shaped bracket 1 and the internal U-shaped bracket 2. Then, a suitable position is selected for the equipment to be lowered, and it is judged whether the diameter of the equipment to be lowered can be smoothly lowered into the well. Then, a pulley body 3 with a suitable diameter is selected according to the well diameter and the diameter of the equipment wire body. The pulley body 3 is fixed on the external U-shaped bracket 1 and the internal U-shaped bracket 2 through the pulley fixing rod 6, and the two bracket fixing rods 10 are inserted into the bracket fixing holes 16 on both sides of the pulley body 3 to prevent the external U-shaped bracket 1 and the internal U-shaped bracket 2 from deforming due to excessive force. The above structure is small in volume, flexible and easy to operate. The lengths of the external U-shaped bracket 1 and the internal U-shaped bracket 2 can be adjusted according to the diameter of the on-site wellhead, so as to cope with wellhead conditions of various diameters, saving time and effort, with low cost and improving work efficiency. By setting the limit plate 9, it can be ensured that when the user moves the external U-shaped bracket 1 and the internal U-shaped bracket 2, the sliding support block 5 will not shift, causing the separation between the external U-shaped bracket 1 and the internal U-shaped bracket 2, thereby improving stability. By setting the structure of the bracket fixing rod 10 and the second nut 11, the stability of the external U-shaped bracket 1 and the internal U-shaped bracket 2 can be strengthened to prevent the external U-shaped bracket 1 and the internal U-shaped bracket 2 from deforming due to the excessive self-weight of the equipment wire body. By designing the bracket fixing rod 10 as a multi-iron rod structure, the load-bearing capacity of the bracket fixing rod 10 is improved. By setting the cross-section 12, the wire body can be protected by using the fan-shaped structure of the cross-section 12 to avoid wear of the wire body. By setting the wellbore fixing block 13, the external U-shaped bracket 1 and the internal U-shaped bracket 2 can be clamped on the wellbore pipe. By setting the scale line 15, the well diameter size can be directly read according to the scale line 15, improving work efficiency.
[0028] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A pulley device applicable to multiple wellhead diameters, comprising an external U-shaped bracket (1) and an internal U-shaped bracket (2), characterized in that: The pulley body (3) is installed inside the external U-shaped bracket (1) and the internal U-shaped bracket (2). Two guide grooves (4) are provided on the surfaces of the external U-shaped bracket (1) and the internal U-shaped bracket (2). Sliding support blocks (5) are slidably connected to both ends inside the guide grooves (4). Pulley fixing holes (7) are provided on the surface of the pulley body (3). A plurality of bracket fixing holes (16) are provided on the surfaces of the external U-shaped bracket (1) and the internal U-shaped bracket (2). A pulley fixing rod (6) is slidably connected inside the bracket fixing hole (16) and extends into the pulley fixing hole (7). The other end of the pulley fixing rod (6) is threadedly connected with a first nut (8).
2. The pulley device applicable to multiple wellhead diameters according to claim 1, wherein: Limit plates (9) are fixed to both ends of the sliding support block (5). The opposite surfaces of the limit plates (9) are in contact with the external U-shaped bracket (1) and the internal U-shaped bracket (2).
3. A pulley device applicable to multiple wellhead diameters according to claim 1, characterized in that: Two bracket fixing rods (10) are slidably connected inside the external U-shaped bracket (1) and the internal U-shaped bracket (2), and are both located on both sides of the pulley body (3). The surface of the bracket fixing rod (10) is slidably connected to the inside of the bracket fixing hole (16). The other end of the bracket fixing rod (10) is threadedly connected with a second nut (11).
4. A pulley device applicable to multiple wellhead diameters according to claim 3, characterized in that: The bracket fixing rod (10) is composed of multiple iron rods.
5. The pulley device applicable to multiple wellhead diameters according to claim 1, wherein: A section (12) is provided on the outer side of the pulley body (3), and the section (12) is of a fan-shaped structure.
6. The pulley device applicable to various wellhead diameters according to claim 1, characterized in that: Wall fixing blocks (13) are fixed to one end of the external U-shaped bracket (1) and the internal U-shaped bracket (2). Wall clamping grooves (14) are provided at the bottom of the wall fixing blocks (13).
7. A pulley device applicable to multiple wellhead diameters according to claim 1, characterized in that: Scale lines (15) are provided on the surfaces of the external U-shaped bracket (1) and the internal U-shaped bracket (2).