Detector coil rack capable of improving connection strength

Abstract

The utility model discloses a detector coil rack capable of improving connection strength, which belongs to the technical field of detectors and comprises a permanent magnet in the center, magnetic boots are symmetrically arranged at the upper end and the lower end of the permanent magnet, coil assemblies are arranged on the peripheries of the magnetic boots, and the upper coil assembly and the lower coil assembly are fixedly connected together through a connecting sleeve. The coil assembly comprises a coil rack, and a coil is wound on the coil rack; the coil rack comprises a contact surface in contact with the connecting sleeve, a plurality of grooves, limiting grooves and blind holes are symmetrically formed in the contact surface, and the grooves are circumferentially distributed in the contact surface in an arc-shaped structure; the connecting sleeve comprises a top surface connected with the coil rack, and a plurality of raised lines matched with the grooves, limiting blocks matched with the limiting grooves and threaded holes are arranged on the top surface; the threaded holes and the blind holes are connected together through screws. According to the utility model, the connection strength and stability are improved, the coil can work stably, and mechanical energy can be effectively converted into electric signals.

Description

Technical Field

[0001] The utility model relates to the technical field of geophones, in particular to a geophone coil holder that can improve the connection strength. Background Technique

[0002] In the design and application of geophones, the connection between the coil and the coil holder is usually achieved through a fixing mechanism to ensure that the coil can work stably and effectively convert mechanical energy into electrical signals. For example, a sliding pressing device with a fixed coil mechanism for a geophone base, through a specific mechanism design, ensures that the coil can be fixed at a specific position on the cable or coil. This design helps to improve the performance and stability of the geophone and ensure that it can accurately convert and transmit electrical signals during operation. However, the connection strength between the coil holder and the connecting sleeve is insufficient, resulting in the need to improve the stability. Based on this, the utility model proposes a geophone coil holder that can improve the connection strength. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a geophone coil holder that can improve the connection strength and solve the above-mentioned problems.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A geophone coil holder that can improve the connection strength of the utility model includes a permanent magnet at the central position. Magnetic shoes are symmetrically arranged at the upper and lower ends of the permanent magnet. A coil assembly is arranged around the outer periphery of the magnetic shoes. The upper and lower coil assemblies are fixedly connected together through a connecting sleeve. An outer shell is sleeved around the outer periphery of the coil assembly. Top cover assemblies are arranged at the upper and lower ends of the outer shell. The opposite ends of the upper and lower coil assemblies respectively abut against spring pieces. The coil assembly includes a coil holder, and a coil is wound around the coil holder.

[0006] The coil holder includes a contact surface in contact with the connecting sleeve. A plurality of grooves, limiting grooves and blind holes are symmetrically arranged on the contact surface. The plurality of grooves are circularly distributed on the contact surface in an arc structure.

[0007] The connecting sleeve includes a top surface connected to the coil holder. A plurality of convex strips matched with the grooves, limiting blocks matched with the limiting grooves and threaded holes are arranged on the top surface. The threaded holes and the blind holes are connected together by screws.

[0008] Further, a sealing ring is arranged between the top cover assembly and the outer shell.

[0009] Further, the arcs of the grooves, convex strips and limiting grooves are the same.

[0010] Further, the arc length of the limiting groove is less than the arc length of the outermost groove on the contact surface.

[0011] Further, the connecting sleeve is sleeved around the outer periphery of the permanent magnet.

[0012] Further, the length of the threaded rod of the screw is less than the sum of the depths of the threaded hole and the blind hole.

[0013] Further, a washer is provided between the screw and the top surface.

[0014] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0015] For the detector coil holder and the connecting sleeve of the present utility model that can improve the connection strength, by placing a colloid between the mating grooves and ridges, and rotating under the restriction of the limiting block and the limiting groove, the colloid can be evenly distributed between the grooves and ridges. After the colloid solidifies and is fixed, the fixation of the grooves and ridges is achieved. Then, the coil holder and the connecting sleeve are fixedly connected together by screws, improving the connection strength and stability between the two, and ensuring that the coil can work stably and effectively convert mechanical energy into electrical signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present utility model will be further described below with reference to the accompanying drawings.

[0017] Figure 1 It is a cross-sectional view of the detector of the present utility model that can improve the connection strength;

[0018] Figure 2 It is a schematic structural diagram of the coil holder;

[0019] Figure 3 It is a schematic partial structural diagram of the connecting sleeve;

[0020] Figure 4 It is a partial enlarged view of A;

[0021] Description of the reference numerals: 1. Top cover assembly; 2. Outer shell; 3. Magnetic shoe; 4. Sealing ring; 5. Permanent magnet; 6. Coil; 7. Connecting sleeve; 8. Screw; 9. Coil holder;

[0022] 701. Top surface; 702. Ridge; 703. Limiting block; 704. Threaded hole;

[0023] 901. Contact surface; 902. Groove; 903. Limiting groove; 904. Blind hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] As Figure 1As shown in the figure, a geophone coil holder that can improve the connection strength includes a permanent magnet 5 at the central position. Magnetic shoes 3 are symmetrically installed at the upper and lower ends of the permanent magnet 5. A coil assembly is installed around the outer periphery of the magnetic shoes 3. The upper and lower coil assemblies are fixedly connected together by a connecting sleeve 7. A housing 2 is sleeved around the outer periphery of the coil assembly. Top cover assemblies 1 are installed at the upper and lower ends of the housing 2. A sealing ring 4 is installed between the top cover assembly 1 and the housing 2. The connecting sleeve 7 is sleeved around the outer periphery of the permanent magnet 5. The opposite ends of the upper and lower coil assemblies respectively abut against spring pieces. In addition, the geophone has other structures, which are prior art and will not be elaborated here.

[0025] As Figure 2 shown in the figure, the coil assembly includes a coil holder 9, and a coil 6 is wound around the coil holder 9. The coil holder 9 includes a contact surface 901 that contacts the connecting sleeve 7. A plurality of grooves 902, limiting grooves 903, and blind holes 904 are symmetrically formed on the contact surface 901. As Figure 4 shown in the figure, a plurality of the grooves 902 are circularly distributed on the contact surface 901 in an arc structure.

[0026] As Figure 3 shown in the figure, the connecting sleeve 7 includes a top surface 701 that connects to the coil holder 9. A plurality of ridges 702 that cooperate with the grooves 902, a limiting block 703 that matches the limiting groove 903, and a threaded hole 704 are installed on the top surface 701. The threaded hole 704 and the blind hole 904 are connected together by a screw 8.

[0027] Among them, the grooves 902, the ridges 702, and the limiting grooves 903 have the same radian. The arc length of the limiting groove 903 is smaller than the arc length of the outermost groove 902 on the contact surface 901. With such a design, when the groove 902 and the ridge 702 rotate relative to each other, the limiting groove 903 limits the rotation angle, so that the colloid placed between the groove 902 and the ridge 702 always remains between the two and will not overflow to other positions, improving the connection strength between the groove 902 and the ridge 702 through the colloid. In addition, when the colloid is actually added, the required colloid can be directly extruded to one side position of the groove 902 or the ridge 702, and there is no need to evenly apply it. By rotating the groove 902 or the ridge 702, the colloid will move along one side of the groove 902 to the other side until the entire area of the groove 902 and the ridge 702 is filled. After the colloid solidifies, large-area adhesion is achieved, improving the connection strength.

[0028] The length of the threaded rod of the screw 8 is less than the sum of the depths of the threaded hole 704 and the blind hole 904, and greater than the depth of the threaded hole 704. The purpose of this design is to ensure that the screw 8 can fixedly connect the connecting sleeve 7 and the bobbin 9 together, and the end of the screw 8 will not contact the coil 6, avoiding affecting the stable operation of the coil 6.

[0029] A washer is installed between the screw 8 and the top surface 701 to avoid scratching the surface of the connecting sleeve 7.

[0030] The installation process of the present utility model is as follows:

[0031] First step, first install the coil assembly at the lower end. After sleeving it on the lower magnetic shoe 3, apply glue to one end of its groove 902, then sleeve the connecting sleeve 7 on the permanent magnet 5, and align the convex strip 702 with the groove 902. When aligning, first place it out of position, and then rotate the connecting sleeve 7 so that the convex strip 702 drives the glue to move into the groove 902 until the groove 902 and the convex strip 702 are fully engaged, and the glue is evenly placed between the groove 902 and the convex strip 702. Finally, use the screw 8 to fixedly connect the connecting sleeve 7 and the bobbin 9 together;

[0032] Second step, sleeve the upper coil assembly on the upper magnetic shoe 3. Before sleeving, first place the glue on one side of the convex strip 702 on the top surface 701 at the upper end of the connecting sleeve 7, and then use the method of the first step to rotate the upper bobbin 9. After rotating in place, use the screw 8 to fixedly connect the connecting sleeve 7 and the bobbin 9 together;

[0033] Third step, after installing other components, sleeve the housing 2 around the outer periphery of the coil assembly, and seal the top and bottom with the top cover assembly 1.

[0034] The embodiments described above are only descriptions of the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. A geophone coil holder capable of improving the connection strength, characterized in that: It includes a permanent magnet (5) at the central position. Magnetic shoes (3) are symmetrically arranged at the upper and lower ends of the permanent magnet (5). A coil assembly is arranged around the outer periphery of the magnetic shoes (3). The upper and lower coil assemblies are fixedly connected together through a connecting sleeve (7); a housing (2) is sleeved around the outer periphery of the coil assembly, and top cover assemblies (1) are arranged at the upper and lower ends of the housing (2); the opposite ends of the upper and lower coil assemblies respectively abut against spring pieces. The coil assembly includes a coil bobbin (9), and a coil (6) is wound around the coil bobbin (9). The coil bobbin (9) includes a contact surface (901) in contact with the connecting sleeve (7). A plurality of grooves (902), limit grooves (903) and blind holes (904) are symmetrically formed on the contact surface (901). The plurality of grooves (902) are circumferentially distributed on the contact surface (901) in an arc structure. The connecting sleeve (7) includes a top surface (701) connected to the coil bobbin (9). A plurality of ridges (702) matching the grooves (902), a limit block (703) matching the limit groove (903), and a threaded hole (704) are arranged on the top surface (701); the threaded hole (704) and the blind hole (904) are connected together by a screw (8).

2. The detector coil holder capable of improving the connection strength according to claim 1, wherein: A sealing ring (4) is arranged between the top cover assembly (1) and the housing (2).

3. The detector bobbin capable of improving connection strength according to claim 1, characterized in that: The arcs of the groove (902), the ridge (702), and the limit groove (903) are the same.

4. The detector coil holder capable of improving connection strength according to claim 1, wherein: The arc length of the limit groove (903) is less than the arc length of the outermost groove (902) on the contact surface (901).

5. The detector coil holder capable of improving connection strength according to claim 1, characterized in that: The connecting sleeve (7) is sleeved around the outer periphery of the permanent magnet (5).

6. The detector coil holder capable of improving the connection strength according to claim 1, wherein: The length of the threaded rod of the screw (8) is less than the sum of the depths of the threaded hole (704) and the blind hole (904).

7. The detector coil holder capable of improving connection strength according to claim 1, characterized in that: A washer is arranged between the screw (8) and the top surface (701).

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