Anti-falling magnet for embedded screw

Abstract

The utility model discloses an anti-falling magnet for an embedded screw, and relates to the technical field of embedded screws. A mounting groove is formed in the sliding table, mounting holes are symmetrically formed in the mounting groove, locking pieces are mounted in the mounting holes, a detachable pressing plate is arranged in the mounting groove, each locking piece comprises a magnet sleeve, each magnet sleeve is mounted in the corresponding mounting hole, a round bar magnet is embedded in each magnet sleeve, each locking piece further comprises an insert pin sleeve, and each insert pin sleeve is provided with an insert pin. The insert pin sleeve is mounted in the mounting hole, the diameter of one end, close to the magnet sleeve, of the insert pin sleeve is larger than that of the other end of the insert pin sleeve, an insert pin is embedded in the insert pin sleeve, a boss is arranged at one end of the insert pin, the boss is arranged at the large-diameter end of the insert pin sleeve and makes contact with the round bar magnet, and one end of the insert pin is located outside the mounting hole so that the nut can be arranged at the outer end of the insert pin in a sleeving mode. According to the utility model, the magnet can be prevented from being broken, the stability of magnetic adsorption force is maintained, the magnetism of the round bar magnet is ensured to be completely and efficiently transmitted to the nut, and the reliability of fixing the nut is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pre -buried screw technical field, and specifically, it relates to pre -buried screw anti -drop magnetic attraction. BACKGROUND

[0002] The nut is a part which is screwed together with the bolt or screw rod to play a fastening role, and in the injection molding process of some injection products, the nut needs to be pre -buried in the slider position of the mold for injection molding due to the product structure problem.

[0003] When the pre -buried nut is placed on the inlay needle, the slider is easy to automatically fall off in the mold closing movement, and the falling position is different, sometimes causing the mold to be pressed and causing great cost waste to the production, at present, in order to prevent the pre -buried nut from falling off, a ring magnet is usually added at the position where the slider contacts the nut to improve the fixing effect of the nut, but with the continuous increase of the production mode number, the magnetic force will degenerate to different degrees, the nut adsorption appears failure, the mold core appears the possibility of being pressed, and the product quality is affected.

[0004] For the problems in the related art, no effective solution has been proposed so far. CONTENT OF THE UTILITY MODEL

[0005] In order to solve the above technical problems, the utility model discloses a pre -buried screw anti -drop magnetic attraction, which comprises a sliding table, a mounting groove is formed in the sliding table, a mounting hole is symmetrically formed in the mounting groove, a locking piece is installed in the mounting hole, the locking piece is used for fixing the nut to the sliding table, and a detachable pressing plate is arranged in the mounting groove.

[0006] The locking piece comprises a magnet sleeve, the magnet sleeve is installed in the mounting hole, a round bar magnet is inlaid in the magnet sleeve, the locking piece further comprises an inlay needle sleeve, the inlay needle sleeve is installed in the mounting hole, and one end of the magnet sleeve is in contact with the inlay needle sleeve, the diameter of the inlay needle sleeve near one end of the magnet sleeve is larger than the diameter of the other end, so that the inner surface of the inlay needle sleeve is in T shape, an inlay needle is inlaid in the inlay needle sleeve, one end of the inlay needle is provided with a boss, the boss is arranged at the larger diameter end of the inlay needle sleeve, the boss is in contact with the round bar magnet, and one end of the inlay needle is located outside the mounting hole, so that the nut can be sleeved on one end outside the inlay needle.

[0007] The magnet sleeve and the inlay needle sleeve are made of stainless steel non-magnetic material, and the inlay needle is made of stainless steel magnetic material.

[0008] The inlay needle is used for sleeving the nut, and one end of the inlay needle is provided with an inclined round corner.

[0009] A plurality of mounting bolts are arranged on the pressing plate, and the mounting bolts are used for fixing the pressing plate in the mounting groove.

[0010] One side of the mounting groove is provided with an arc opening convenient for taking the pressing plate.

[0011] The utility model has the following beneficial effects:

[0012] The utility model discloses a round bar magnet is inlaid in the magnet cover of stainless steel non -magnetic material after being loaded into the mounting hole, and the magnet cover can stably protect the round bar magnet, prevent it from being crushed due to external force impact in the working process, thereby avoiding the influence of the magnetic adsorption force of the round bar magnet, and because it has no magnetic conductivity, it does not interfere with the magnetic dispersion of the round bar magnet, at the same time, the inlay needle is made of stainless steel magnetic material, so that the magnetism of the round bar magnet can be concentrated and completely conducted through the inlay needle, when the nut is sleeved on the inlay needle end of the mounting hole, the magnetic force of the round bar magnet conducted through the inlay needle can be accurately applied to the nut, generates stable adsorption force, and the nut is firmly adsorbed and fixed on the inlay needle, and the device can avoid the fragmentation of the magnet, maintains the stability of the magnetic adsorption force, and ensures that the magnetism of the round bar magnet is all efficiently transmitted to the nut, greatly improves the reliability of the fixed nut.

[0013] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0015] Figure 2 It is the three-dimensional structure schematic diagram two of the utility model;

[0016] Figure 3 It is the three-dimensional section structure schematic diagram of the utility model;

[0017] Figure 4 It is the locking piece explosion perspective structure schematic diagram of the utility model;

[0018] Figure 5 It is the pressing plate structure schematic diagram of the utility model.

[0019] The figure mark explanation: 1, sliding table;2, installation groove;3, mounting hole;4, locking piece;5, nut;6, pressing plate;7, magnet cover;8, round bar magnet;9, inlay needle cover;10, inlay needle;11, boss;12, mounting bolt;13, arc mouth. DETAILED DESCRIPTION

[0020] To make the purpose, technical scheme and advantage of the embodiment of the utility model more clear, the following will combine the drawing of the embodiment of the utility model and specifically describe the embodiment of the utility model. Figures 1-5 The technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the described embodiment of the utility model, all other embodiments obtained by the person skilled in the art belong to the scope of the utility model protection.

[0021] Referring to Figures 1-4 shown:

[0022] The embodiment provides a pre-buried screw anti-falling magnetic attraction, which comprises a sliding table 1, an installation groove 2 is formed in the sliding table 1, symmetrical installation holes 3 are formed in the installation groove 2, locking pieces 4 are installed in the installation holes 3, the locking pieces 4 are used for fixing nuts 5 to the sliding table 1, and detachable pressing plates 6 are arranged in the installation groove 2;

[0023] The locking piece 4 comprises a magnet sleeve 7, the magnet sleeve 7 is installed in the installation hole 3, a round bar magnet 8 is inlaid in the magnet sleeve 7, the locking piece 4 further comprises an inlay needle sleeve 9, the inlay needle sleeve 9 is installed in the installation hole 3 and is in contact with one end of the magnet sleeve 7, the inlay needle sleeve 9 is closer to one end of the magnet sleeve 7 and has a larger diameter than the other end, so that the inner surface of the inlay needle sleeve 9 is in a T shape, an inlay needle 10 is inlaid in the inlay needle sleeve 9, one end of the inlay needle 10 is provided with a boss 11, the boss 11 is arranged at the larger-diameter end of the inlay needle sleeve 9, the boss 11 is in contact with the round bar magnet 8, and one end of the inlay needle 10 is located outside the installation hole 3, so that the nut 5 can be sleeved on the outer end of the inlay needle 10, and the inner wall of the nut 5 can be tightly attached to the outer surface of the inlay needle 10;

[0024] The magnet sleeve 7 and the inlay needle sleeve 9 are made of non-magnetic stainless steel, and the inlay needle 10 is made of magnetic stainless steel.

[0025] In actual use, first, the inlay needle 10 is placed in the inlay needle sleeve 9, and then the inlay needle 10 is installed in the installation hole 3, so that the boss 11 at one end of the inlay needle 10 is clamped at the larger-diameter end of the inlay needle sleeve 9, preventing the inlay needle 10 from coming out, at this time, the other end of the inlay needle 10 extends out of the installation hole 3, then the round bar magnet 8 is inlaid into the magnet sleeve 7, the magnet sleeve 7 provided with the round bar magnet 8 is installed in the installation hole 3, so that one end of the round bar magnet 8 is in contact with the boss of the inlay needle 10, finally, the pressing plate 6 is fixed in the installation groove 2, and the installation of the locking piece 4 in the installation hole 3 is completed, because the inlay needle 10 is made of magnetic stainless steel, the magnetic force of the round bar magnet 8 can be conducted through the inlay needle 10, and because the magnet sleeve 7 and the inlay needle sleeve 9 are made of non-magnetic stainless steel, the magnet sleeve 7 can protect and fix the round bar magnet 8, avoiding the round bar magnet 8 from being crushed during work and affecting the magnetic attraction force of the round bar magnet 8, and at the same time, the magnetic dispersion of the round bar magnet 8 is not affected, so that the magnetism of the round bar magnet 8 only conducts through the inlay needle 10 with magnetic conductivity, so that after the nut 5 to be pre-buried is sleeved on one end of the inlay needle 10 extending out of the installation hole 3, the round bar magnet 8 generates an attractive force on the nut 5 through the magnetic force conducted by the inlay needle 10, the nut 5 is attracted and fixed on the inlay needle 10, and the nut 5 cannot be displaced, thereby improving the fixing ability of the nut 5 and ensuring the magnetic attraction ability of the round bar magnet 8.

[0026] As Figure 4As shown, the insert pin 10 is used to mount the nut 5. One end of the insert pin 10 is provided with an inclined rounded corner. The design of the inclined rounded corner makes the nut 5 easier to mount, effectively reducing the friction and resistance between the nut 5 and the insert pin 10, making it easier to install the nut 5 on the insert pin 10 and improving the installation speed.

[0027] like Figures 3-5 As shown, the pressure plate 6 is provided with multiple mounting bolts 12. The mounting bolts 12 are used to fix the pressure plate 6 in the mounting groove 2. The mounting bolts 12 can fix the pressure plate 6 into the mounting groove 2 and fix the entire locking part 4 in the mounting hole 3. When it is necessary to remove the pressure plate 6, the mounting bolts 12 can be removed to release the fixed state of the pressure plate 6 and easily remove it.

[0028] like Figure 4 As shown, an arc-shaped opening 13 is provided on one side of the mounting groove 2 to facilitate the removal of the pressure plate 6, providing an easy point of leverage for the operator, making it easier and more convenient to remove the pressure plate 6 and improving the efficiency of the installation operation.

[0029] The working principle of the pre-embedded screw anti-loosening magnetic attraction provided by this utility model is as follows: First, place the insert pin 10 inside the insert pin sleeve 9 and insert it into the mounting hole 3, so that the other end of the insert pin 10 extends out of the mounting hole 3. Then, insert the round bar magnet 8 into the magnet sleeve 7 and install the magnet sleeve 7 containing the round bar magnet 8 into the mounting hole 3, so that one end of the round bar magnet 8 contacts the frustum of the insert pin 10. Finally, fix the pressure plate 6 in the mounting groove 2 by the mounting bolt 12, so that the entire locking part 4 is installed into the mounting hole 3. Since the insert pin 10 is made of stainless steel with magnetic conductivity, the magnetic force of the round bar magnet 8 can be conducted through the insert pin 10, and because the magnet sleeve 7 and the insert pin sleeve 9... Made of non-magnetic stainless steel, the magnet sleeve 7 protects and secures the round bar magnet 8, preventing it from being crushed during operation and affecting its magnetic attraction. It also ensures that the magnetism of the round bar magnet 8 is not affected, allowing it to be conducted only through the magnetically conductive insert pin 10. When the nut 5 to be embedded is fitted onto one end of the insert pin 10 extending from the mounting hole 3, the magnetic force conducted by the insert pin 10 attracts the nut 5, fixing it to the insert pin 10 and preventing displacement. This improves the nut 5's fixation ability and ensures the magnetic attraction of the round bar magnet 8.

[0030] In addition, it needs to be explained that, in the description of the present application, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] The above is the preferred embodiment of the present application, it should be pointed out that, for those skilled in the art, without departing from the principles described in the present application, a number of improvements and refinements can be made, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A pre-buried screw anti-falling magnetic attraction, comprising a sliding table (1), characterized in that, The sliding table (1) is provided with a mounting groove (2), the mounting groove (2) is provided with a mounting hole (3) symmetrically, the mounting hole (3) is provided with a locking piece (4), the locking piece (4) is used for fixing a nut (5) to the sliding table (1), and the mounting groove (2) is provided with a detachable pressing plate (6); The locking piece (4) comprises a magnet sleeve (7), the magnet sleeve (7) is installed in the mounting hole (3), the magnet sleeve (7) is embedded with a round bar magnet (8), the locking piece (4) further comprises an inlay needle sleeve (9), the inlay needle sleeve (9) is installed in the mounting hole (3) and is in contact with one end of the magnet sleeve (7), the inlay needle sleeve (9) is closer to one end of the magnet sleeve (7) than the other end, so that the inner surface of the inlay needle sleeve (9) is in the shape of T, the inlay needle sleeve (9) is embedded with an inlay needle (10), one end of the inlay needle (10) is provided with a boss (11), the boss (11) is arranged at the larger diameter end of the inlay needle sleeve (9), the boss (11) is in contact with the round bar magnet (8), one end of the inlay needle (10) is located outside the mounting hole (3), so that the nut (5) can be sleeved on one end outside the inlay needle (10); The magnet sleeve (7) and the inlay needle sleeve (9) are made of stainless steel and have no magnetic conductivity, and the inlay needle (10) is made of stainless steel and has magnetic conductivity.

2. The magnetic screw anti-loosening device according to claim 1, wherein, One end of the inlay needle (10) for sleeving the nut (5) is provided with an inclined round corner.

3. The magnetic screw fall-prevention device according to claim 1, wherein the magnetic screw fall-prevention device is a pre-buried magnetic screw fall-prevention device. The pressing plate (6) is provided with a plurality of mounting bolts (12), and the mounting bolts (12) are used for fixing the pressing plate (6) in the mounting groove (2).

4. The magnetic screw fall-prevention device according to claim 3, characterized in that, One side of the mounting groove (2) is provided with an arc opening (13) for conveniently taking the pressing plate (6).

Images