Relay coil framework

Abstract

A relay coil framework comprises a tubular piece, a pin connecting piece arranged at one end of the tubular piece and a lap joint piece arranged at the other end of the tubular piece, the lap joint piece comprises an annular piece and a lap joint block arranged on the annular piece, the annular piece is used for allowing the tubular piece to be inserted in and achieving an inner ring in clearance fit, and a positioning structure is arranged on the inner circumferential face of the inner ring. The end face of the end, provided with the lap joint piece, of the tubular piece is provided with a matching structure in clearance fit with the positioning structure, and the end face of the end, provided with the lap joint piece, of the tubular piece is further provided with a locking structure matched with the matching structure so that the lap joint piece can be prevented from being disengaged from the tubular piece after the tubular piece and the lap joint piece are combined. The utility model has the beneficial effects that the tubular part and the lap joint part are assembled in a clearance sleeving manner firstly, so that the obstruction and the complexity of interference sleeving are avoided, and the locking structure is arranged to avoid the influence of clearance fit on the assembly stability of the lap joint part and the tubular part.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit control, in particular to a relay coil frame. Background Art

[0002] A relay is an electrical control device, usually used in automated control circuits. It is actually an "automatic switch" that uses a small current to control the operation of a large current. It plays the role of automatic regulation, safety protection, and circuit conversion in the circuit.

[0003] Publication (Announcement) No.: CN210778426U discloses a coil skeleton, including: a tubular member and a first annular sheet, the annular sheet is connected to the peripheral wall of one end of the tubular member; a strip block, the strip block is connected to the first annular sheet, and a plurality of first jacks for installing the horizontal relay lead angle and a plurality of second jacks for installing the vertical relay pins are provided on the strip block; the first jack and the second jack are connected; and also includes a lap joint, the lap joint is sleeved on the peripheral wall of the other end of the tubular member, and a section of the outer wall of the tubular member between the first annular sheet and the lap joint is a winding area. This coil skeleton improves the applicability of the coil skeleton when in use, so as to ensure that the same coil skeleton can be used for upright relays and horizontal relays, but there are defects, which are mainly reflected in the sleeve fitting mode of the lap joint and the tubular member. No locking structure is added in the comparative document, so the sleeve fitting of the lap joint and the tubular member adopts interference fit, which will generate assembly resistance during the assembly process, that is, it needs to be realized with the help of auxiliary tools when fitting, and there is also a hidden danger of deflection and obstruction of fitting. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings of the prior art and provides a relay coil skeleton for solving the above-mentioned problems.

[0005] The utility model adopts a technical solution to solve the technical problem: the relay coil skeleton comprises a tubular member, a pin connector arranged at one end of the tubular member, and a lap joint member arranged at the other end of the tubular member and used for lap jointing with a yoke in a driving component, the lap joint member comprises an annular sheet and a lap joint block arranged on the annular sheet, the annular sheet has an inner ring for the tubular member to be inserted into and to achieve clearance fit, a positioning structure is arranged on the inner circumferential surface of the inner ring, a matching structure for clearance fit with the positioning structure is arranged on the end surface of one end of the tubular member where the lap joint is arranged, so that the lap joint block and the strip block of the pin connector are always kept parallel when the tubular member and the lap joint are assembled, and a locking structure for matching with the matching structure is also arranged on the end surface of one end of the tubular member where the lap joint is arranged, so as to prevent the lap joint from being separated from the tubular member after the tubular member and the lap joint are combined.

[0006] To be further improved, the positioning structure includes a block with a rectangular configuration, and the matching structure includes a slot with the same configuration as the block, so that when the tubular member and the lap joint are combined, the block is inserted into the slot, and the block and the slot are gap-matched.

[0007] To be further improved, the slot has an assembly base surface, a locked rod is arranged on the assembly base surface, the block has an assembly mating surface in contact with the assembly base surface, the assembly mating surface is provided with a hole that penetrates the block and is for the locked rod to be inserted therein and realizes a clearance fit, one end of the locked rod passes through the hole and is exposed outside the hole and is combined with the locking structure.

[0008] For further improvement, a locked socket combined with the locking structure is provided between the outer peripheral surface of the end portion of the locked plug rod exposed outside the socket and the end face, and a blocking piece is provided on the end face of the end portion of the locked plug rod exposed outside the socket, and the blocking piece contacts the locking structure when the locking structure is combined with the locked socket.

[0009] To be further improved, the locking structure includes a swing arm, one end of which is connected to the shaft to achieve swinging, and the other end is provided with a locking socket that is combined with the locked socket.

[0010] Further improvement, one of the openings of the locked socket faces downward, and the opening of the matching locking socket faces upward, and one of the openings of the locked socket faces upward, and the opening of the matching locking socket faces downward.

[0011] For further improvement, there is a spacing between the end face of the block away from the pin connector and the end face of the annular sheet away from the pin connector, and the spacing allows the locked rod and the locking structure to be located in the inner circle after the tubular member and the lap joint are combined.

[0012] The beneficial effects of the utility model are:

[0013] The utility model firstly adopts the gap fitting method between the tubular member and the lap joint during assembly, thereby avoiding the obstruction and cumbersomeness of interference fit, and provides a locking structure for locking to avoid affecting the assembly stability of the lap joint and the tubular member due to the gap fit. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 A partial enlarged schematic diagram of part A;

[0017] Figure 4 It is a schematic diagram of the exploded structure of the swing arm and the locking rod of the utility model. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Referring to the accompanying drawings: This relay coil skeleton includes a tubular member 1, a pin connector 2 arranged at one end of the tubular member 1, and a lap joint 3 arranged at the other end of the tubular member 1 and used for lap jointing with a yoke in a driving assembly. The lap joint 3 includes an annular sheet 31 and a lap block 32 arranged on the annular sheet 31. The annular sheet 31 has an inner ring 31-a for the tubular member 1 to be inserted into and to achieve clearance fit. A positioning structure 4 is arranged on the inner circumferential surface of the inner ring 31-a. A matching structure 5 that is clearance fit with the positioning structure 4 is arranged on the end surface of one end of the tubular member 1 where the lap joint 3 is arranged, so that the lap block 32 and the strip block of the pin connector 2 are always kept parallel when the tubular member 1 and the lap joint 3 are assembled. A locking structure 6 that is matched with the matching structure 5 is also arranged on the end surface of one end of the tubular member 1 where the lap joint 3 is arranged, so as to prevent the lap joint 3 from detaching from the tubular member 1 after the tubular member 1 and the lap joint 3 are combined. The principle of the utility model is that the clearance fit between the annular sheet 31 and the tubular member 1, the positioning structure 4 and the matching structure 5 when combined enables the lap joint 3 to be quickly assembled on the tubular member 1, and the assembly process is not as obstructive and cumbersome as the interference fit in the prior art, and in order to avoid affecting the assembly stability of the lap joint 3 and the tubular member 1 due to the clearance fit, a locking structure 6 is provided for locking.

[0020] The positioning structure 4 includes a block 41 with a rectangular configuration, and the matching structure 5 includes a slot 51 with the same configuration as the block 41, so that when the tubular member 1 and the lap joint 3 are combined, the block 41 is inserted into the slot 51, and the block 41 and the slot 51 are clearance-matched. Such a setting can achieve rapid preliminary positioning assembly and determine the final assembly position of the lap joint 3 on the tubular member 1.

[0021] The slot 51 has an assembly base surface 51-a, and a locked rod 7 is arranged on the assembly base surface 51-a. The block 41 has an assembly mating surface 41-a in contact with the assembly base surface 51-a. The assembly mating surface 41-a is provided with a socket 8 that penetrates the block 41 and is for the locked rod 7 to be inserted therein and realize clearance fit. One end of the locked rod 7 passes through the socket 8 and is exposed outside the socket 8 and is combined with the locking structure 6. Such an arrangement enables the positioning structure 4 and the matching structure 5 to achieve mutual plug-in fit by utilizing the socket 8 and the locked rod 7, and the locked rod 7 is used as a matching part of the locking structure 6 to restrict the lap joint 3 to the tubular part 1 to prevent the lap joint 3 from detaching.

[0022] A locked socket 71 combined with the locking structure 6 is provided between the end outer circumference and the end face of the locked plug rod 7 exposed outside the socket 8, and a blocking piece 72 is provided on the end face of the locked plug rod 7 exposed outside the socket 8. The blocking piece 72 contacts the locking structure 6 when the locking structure 6 is combined with the locked socket 71. Since the locked socket 71 is provided between the end outer circumference and the end face of the locked plug rod 7, the locked socket 71 is semi-open with only one side blocked. Therefore, another blockage is formed by the blocking piece 72, and after the locking structure 6 is combined with the locked socket 71, the locking structure 6 can contact the blocking piece 72. The contact can produce a certain friction, thereby ensuring the locking stability.

[0023] The locking structure 6 includes a swing arm 61, one end of which is connected to the shaft to achieve swinging, and the other end is provided with a locking socket 61-a combined with the locked socket 71. The swinging setting of the swing arm 61 makes the operation convenient, and the locking socket 61 is used to combine with the locked socket 71, and the configuration of the locking socket 61 allows part of the swing arm 61 to enter when it is combined with the locked socket 71, and the locking socket 61 is partially clamped outside the locked plug rod 7. This method makes the locking stable and not easy to fall out.

[0024] The opening of one of the locked sockets 71 faces downward, and the opening of the matching locking socket 61-a faces upward. The opening of one of the locked sockets 71 faces upward, and the opening of the matching locking socket 61-a faces downward. This setting is to avoid hindering the swing of the swing arm 61. Because the positioning structure 4, the matching structure 5, and the locking structure are all arranged in an upper and lower distribution, the swing arm 61 located at the top swings upward when locked and swings downward when unlocked to meet the setting that the opening of one of the locked sockets 71 faces downward, and the opening of the matching locking socket 61-a faces upward. Conversely, the swing arm 61 located at the bottom swings downward when locked and swings upward when unlocked to meet the setting that the opening of one of the locked sockets 71 faces upward, and the opening of the matching locking socket 61-a faces downward.

[0025] There is a spacing distance 9 between the end face of the block 41 facing away from the pin connector 2 and the end face of the annular sheet 31 facing away from the pin connector 2, and the spacing distance 9 allows the locked rod 7 and the locking structure 6 to be located within the inner ring 31-a after the tubular member 1 and the lap joint 3 are combined. This arrangement ensures that when the coil skeleton is assembled with the yoke in the drive assembly, the locked rod 7 and the locking structure 6 will not interfere with the assembly, thereby ensuring assembly stability.

[0026] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A relay coil skeleton, comprising a tubular member (1), a pin connector (2) arranged at one end of the tubular member (1), and a bridging member (3) arranged at the other end of the tubular member (1) and used for bridging a magnetic yoke in a drive assembly, characterized in that: The lap joint (3) comprises an annular sheet (31) and a lap block (32) arranged on the annular sheet (31); the annular sheet (31) has an inner ring (31-a) into which the tubular member (1) is inserted and which realizes a clearance fit; a positioning structure (4) is arranged on the inner circumferential surface of the inner ring (31-a); a matching structure (5) which is clearance-matched with the positioning structure (4) is arranged on the end surface of one end of the tubular member (1) on which the lap joint (3) is arranged, so that the lap block (32) and the strip block of the pin connector (2) are always kept parallel when the tubular member (1) and the lap joint (3) are assembled; a locking structure (6) which is matched with the matching structure (5) is also arranged on the end surface of one end of the tubular member (1) on which the lap joint (3) is arranged, so that the lap joint (3) is prevented from being separated from the tubular member (1) after the tubular member (1) and the lap joint (3) are combined.

2. The relay coil skeleton according to claim 1, characterized in that: The positioning structure (4) comprises a block (41) of rectangular configuration, and the matching structure (5) comprises a slot (51) of the same configuration as the block (41), so that when the tubular member (1) and the lap joint member (3) are combined, the block (41) is inserted into the slot (51), and the block (41) and the slot (51) are clearance-matched.

3. The relay coil frame according to claim 2, characterized in that: The slot (51) has an assembly base surface (51-a), and a locked rod (7) is arranged on the assembly base surface (51-a). The block (41) has an assembly mating surface (41-a) in contact with the assembly base surface (51-a), and the assembly mating surface (41-a) is provided with a plug hole (8) that penetrates the block (41) and is provided for the locked rod (7) to be inserted therein and achieve clearance fit. One end of the locked rod (7) passes through the plug hole (8) to be exposed outside the plug hole (8) and is combined with the locking structure (6).

4. The relay coil frame according to claim 3, characterized in that: A locked insertion opening (71) coupled to the locking structure (6) is provided between the outer peripheral surface of the end portion of the locked insertion rod (7) exposed outside the insertion hole (8) and the end surface, and a blocking piece (72) is provided on the end surface of the end portion of the locked insertion rod (7) exposed outside the insertion hole (8), and the blocking piece (72) is coupled to the locked insertion opening (71) at the locking structure (6) and contacts the locking structure (6).

5. The relay coil frame according to claim 4, characterized in that: The locking structure (6) comprises a swing arm (61), one end of the swing arm (61) being connected to a shaft to achieve swinging, and the other end being provided with a locking socket (61-a) combined with the locked socket (71).

6. The relay coil frame according to claim 5, characterized in that: The opening of one of the locked sockets (71) faces downwards, and the opening of the matching locking socket (61-a) faces upwards; the opening of one of the locked sockets (71) faces upwards, and the opening of the matching locking socket (61-a) faces downwards.

7. The relay coil frame according to claim 6, characterized in that: An end surface of the block (41) facing away from the pin connector (2) and an end surface of the annular sheet (31) facing away from the pin connector (2) have a spacing distance (9), and the spacing distance (9) allows the locked rod (7) and the locking structure (6) to be located within the inner ring (31-a) after the tubular member (1) and the lap joint (3) are combined.

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