Relay annular shell convenient to disassemble

Abstract

A relay annular shell convenient to disassemble comprises a base plate, an annular base and an annular shell body, the annular base is arranged in the middle of the upper end face of the base plate and provided with an annular inserting groove, the annular shell body is provided with an annular inserting ring matched with the annular inserting groove in an inserted mode, and the annular base forms an outer ring part and an inner ring part through the annular inserting groove. The outer ring part and the inner ring part are each provided with a plurality of pre-positioning channels which are distributed in an annular array mode and communicate with the annular inserting groove, the pre-positioning channels are formed in the outer ring part, the inner ring part is provided with upper inlets, and locking pieces arranged on the outer ring part and locking holes formed in the inner ring part and matched with the locking pieces in a locking mode are arranged between the adjacent pre-positioning channels. Pre-positioning blocks which enter the pre-positioning channel from the upper inlet and can move in the pre-positioning channel are arranged on the annular insertion ring, and an insertion hole which is formed in the annular insertion ring and allows the locking piece to penetrate through is formed between every two adjacent pre-positioning blocks.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit control, in particular to an annular housing of a relay which is easy to disassemble. 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) number: CN220420506U discloses a relay annular housing that is easy to disassemble, including a substrate, a relay body and an annular shell, the relay body is installed in the middle of the upper end of the substrate, and the annular shell covers the outside of the relay body: an annular bottom plate that is sleeved on the outer periphery of the relay body is fixed to the upper end of the substrate, an annular sealing groove is opened at the upper end of the annular bottom plate, a sealing insert ring matching the annular sealing groove is fixed to the lower end of the annular shell, and a plurality of groups of snap-on installation components are provided on the inner wall of the annular sealing groove; locking limit components are provided on both sides of the sealing insert ring. The annular housing of this relay is combined with the annular shell and the annular base plate by plugging and fitting the sealing insert ring and the annular sealing groove, and after the combination, the snap-on mounting assembly and the locking limit assembly are used to prevent the two from separating. Although this method can achieve stable matching between the two, there are defects, which are mainly reflected in the snap-on mounting assembly and the locking limit assembly. First, the structural setting of the snap-on mounting assembly causes the sealing insert ring and the annular sealing groove to require the use of an auxiliary clamp to provide constraints on the substrate during maintenance and separation, so that the force applied by the user only acts on the annular shell to achieve the separation of the two. Secondly, the unlocking of the locking limit assembly needs to be achieved by an auxiliary tool, that is, a screwdriver, and there are multiple locking limit assemblies, so it is necessary to repeat the operation many times, which is more cumbersome. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings of the prior art and provides a relay annular housing which is easy to disassemble to solve the above-mentioned problems.

[0005] The utility model adopts a technical solution to solve the technical problem: the relay annular housing which is easy to disassemble comprises a substrate, an annular base and an annular shell, the annular base is arranged at a central position of an upper end surface of the substrate and has an annular slot, the annular shell has an annular insert ring which is plugged and matched with the annular slot, the annular base forms an outer ring part and an inner ring part through the annular slot, the outer ring part and the inner ring part are both provided with a plurality of pre-positioning channels which are distributed in an annular array and communicate with the annular slot, the pre-positioning channel has an upper inlet on the outer ring part and the inner ring part, a locking piece arranged on the outer ring part and a locking hole arranged on the inner ring part and engaged with the locking piece are provided between adjacent pre-positioning channels, a pre-positioning block which enters the pre-positioning channel from the upper inlet and can move in the pre-positioning channel is provided on the annular insert ring, and a plug hole which is arranged on the annular insert ring and is passed through by the locking piece is provided between two adjacent pre-positioning blocks.

[0006] Further improvement, the pre-positioning channel includes a first guide channel and a second guide channel that are interconnected, the first guide channel is interconnected with the upper inlet, each second guide channel extends in a clockwise direction, and allows the annular shell to be prevented from moving in a direction of disengaging from the annular slot when the pre-positioning block is placed in the second guide channel.

[0007] To be further improved, the locking piece includes a mounting portion and a locking portion, the mounting portion being arranged on the outer circumferential surface of the outer ring portion away from the annular slot, the locking portion being movably arranged in the mounting portion and used to lock with the locking hole, and at the same time passing through the insertion hole to prevent the annular shell from rotating in a counterclockwise direction when the annular shell is combined with the annular base.

[0008] To be further improved, the mounting part includes a connecting block providing a movable guide, and connecting plates extending from both sides of the connecting block, the connecting block and the connecting plate both having an assembly base surface close to the outer peripheral surface of the outer ring part, the assembly base surface being an arc-shaped surface matching the outer peripheral surface of the outer ring part, a movable cavity for the locking part to move is provided in the connecting block, and the connecting plate is connected to the outer ring part by bolts.

[0009] Further improvement, the locking part includes a locking column, a connecting rod extending from the locking column, and a grasping block connected to the connecting rod as a grasping component, the locking column and the connecting rod both move in the moving cavity and are partially covered by the moving cavity, and the moving cavity has a wide section matching the outer diameter of the locking column and a narrow section matching the outer diameter of the connecting rod.

[0010] For further improvement, a buried hole is provided on the end face of the grasping block close to the connecting rod, the end of the connecting rod connected to the grasping block is placed in the buried hole, a spring which is sleeved on the connecting rod and has an elastic compression amount is provided in the buried hole, one end of the spring is fixed to the connecting block to set the connecting surface of the connecting rod, and the other end is fixed to the buried hole to set the connecting surface of the connecting rod.

[0011] To further improve the situation, a stop block is provided on the inner circumferential surface of the locking hole to combine with the locking column to confine the locking column in the locking hole, and a third guide channel, a fourth guide channel, and a locking channel are provided on the outer circumferential surface of the locking column. The third guide channel is provided on the locking column with a side entrance for the stop block to enter the third guide channel, and the stop block reaches the locking channel through the third guide channel and the fourth guide channel. After the locking channel is combined with the stop block, the locking column is confined in the locking hole and the locking part is prevented from moving without human operation.

[0012] For further improvement, a directional arrow mark is arranged on the end surface of the gripping block away from the connecting rod, and a prompt mark representing opening and closing is arranged on the end surface of the connecting block away from the assembly base surface.

[0013] The beneficial effects of the utility model are:

[0014] The locking piece of the utility model can be locked or unlocked with the locking hole only by rotating and moving, and such operation does not require the aid of auxiliary tools, but only requires manual operation. Moreover, when releasing the assembly of the annular base and the annular shell, it only requires rotation, without applying a strong force. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0017] Figure 3 For this utility model Figure 2 A partial enlarged schematic diagram of part A;

[0018] Figure 4 It is a schematic diagram of the full cross-section structure of the front side of the utility model;

[0019] Figure 5 For this utility model Figure 4 A partial enlarged schematic diagram of part B;

[0020] Figure 6 This is a schematic diagram of the structure of the locking member of the utility model;

[0021] Figure 7 It is a structural schematic diagram of the front side of the utility model;

[0022] Figure 8 For this utility model Figure 7 A partial enlarged schematic diagram of part C in the middle. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] Referring to the accompanying drawings: This easily disassembled relay annular housing comprises a substrate 1, an annular base 2, and an annular housing 3. The annular base 2 is arranged at the center of the upper end surface of the substrate 1 and has an annular slot 21. The annular housing 3 has an annular insert ring 31 plugged into the annular slot 21. The annular base 2 forms an outer ring portion 22 and an inner ring portion 23 through the annular slot 21. The outer ring portion 22 and the inner ring portion 23 are both provided with a plurality of pre-positioning channels 24 distributed in an annular array and communicating with the annular slot 21. The pre-positioning channels 24 Both the outer ring portion 22 and the inner ring portion 23 are provided with an upper inlet 24-a, and between adjacent pre-positioning channels 24 there is a locking piece 4 arranged on the outer ring portion 22, and a locking hole 5 arranged on the inner ring portion 23 and engaged with the locking piece 4, and the annular plug ring 31 is provided with a pre-positioning block 31-a which enters the pre-positioning channel 24 through the upper inlet 24-a and can move within the pre-positioning channel 24, and between two adjacent pre-positioning blocks 31-a there is a socket 31-b arranged on the annular plug ring 31 and for the locking piece 4 to pass through. The principle of the utility model is that after the annular base 2 and the annular shell 3 are plugged in, the pre-positioning channel 24 and the pre-positioning block 31-a are first used to prevent the annular shell 3 from separating in the direction of disengaging from the plug-in fit, and the pre-positioning block 31-a enters the pre-positioning channel 24 from the upper inlet 24-a. When the pre-positioning block 31-a reaches the terminal of the pre-positioning channel 24, the socket 31-b and the locking hole 5 and the locking piece 4 can be kept on the same axis, so that the locking piece 4 can act on the socket 31-b and the locking hole 5 at the same time. The locking hole 5 is used to engage with the locking piece 4 to achieve locking. This method does not require a tool to achieve a locking connection. After the two are engaged, the annular shell 3 is prevented from rotating in the counterclockwise direction, thereby achieving a stable setting of the annular shell 3 on the annular base 2.

[0025] The pre-positioning channel 24 includes a first guide channel 24-b and a second guide channel 24-c which are interconnected. The first guide channel 24-b is interconnected with the upper inlet 24-a. Each second guide channel 24-c extends in a clockwise direction and allows the annular housing 3 to be prevented from moving in a direction away from the annular slot 21 when the pre-positioning block 31-a is placed in the second guide channel 24-c. The first guide channel 24-b is vertically and the second guide channel 24-c is horizontally L-shaped. In this way, the pre-positioning block 31-a enters the second guide channel 24-c from the upper inlet 24-a. After moving to the terminal in the first guide channel 24-b, it enters the second guide channel 24-c, and at this time there is an angle difference between the locking hole 5 and the socket 31-b. The second guide channel 24-c can provide upward and downward constraints to the pre-positioning block 31-a (i.e., to prevent it from detaching). Therefore, the pre-positioning block 31-a needs to be moved to the second guide channel 24-c. When the pre-positioning block 31-a moves to the terminal of the second guide channel 24-c, the locking hole 5 and the socket 31-b remain on the same axis, which can meet the need for the annular shell 3 to rotate.

[0026] The locking piece 4 includes a mounting portion 41 and a locking portion 42. The mounting portion 41 is arranged on the outer circumferential surface of the outer ring portion 22 away from the annular slot 21. The locking portion 42 is movably arranged in the mounting portion 41 and is used to lock and cooperate with the locking hole 5, and at the same time passes through the socket 31-b to prevent the annular shell 3 from rotating in the counterclockwise direction when the annular shell 3 is combined with the annular base 2. The mounting portion 41 is used to provide support for the locking portion 42 so that the locking portion 42 can be maintained at a height coaxial with the locking hole 5 or the socket 31-b. The movable setting allows the locking portion 42 to exist in the locking hole 5 and the socket 31-b, and also to be detached from the locking hole 5 and the socket 31-b, thereby simplifying the difficulty of cooperation.

[0027] The mounting portion 41 includes a connecting block 41-a providing a moving guide, and connecting plates 41-b extending from both sides of the connecting block 41-a. Both the connecting block 41-a and the connecting plate 41-b have an assembly base surface 41-c close to the outer peripheral surface of the outer ring portion 22. The assembly base surface 41-c is an arc-shaped surface matching the outer peripheral surface of the outer ring portion 22. A moving cavity 41-a1 for the locking portion 42 to move is provided in the connecting block 41-a. The connecting plate 41-b is connected to the outer ring portion 22 by bolts. This arrangement makes the mounting portion 41 easy to install. Part 41 has both a portion for setting the locking portion 42, which is achieved through the movable cavity 41-a1, so that the locking portion 42 is placed inside and can move, and a portion that enables itself to be set on the annular base 2, which is achieved through the connecting plate 41-b, so that the locking portion 42 can always maintain a height coaxial with the locking hole 5, and the assembly base surface 41-c is used to adapt to the outer peripheral surface of the outer ring portion 22, so that when the mounting portion 41 is set on the outer peripheral surface of the outer ring portion 22, no fitting gap will be generated, thereby increasing the tightness of the fitting.

[0028] The locking portion 42 includes a locking column 42-a, a connecting rod 42-b extending from the locking column 42-a, and a gripping block 42-c connected to the connecting rod 42-b as a gripping component. The locking column 42-a and the connecting rod 42-b are both moved in the moving cavity 41-a1 and are partially covered by the moving cavity 41-a1. The moving cavity 41-a1 has a wide section 41-a11 that matches the outer diameter of the locking column 42-a, and a narrow section 41-a12 that matches the outer diameter of the connecting rod 42-b. The locking portion 42 is configured in this way so that it has both a part that is convenient for users to operate (i.e., the gripping block 42-c) and a gripping component. There is a part that locks with the locking hole 5 (i.e., the locking column 42-a), and the connecting rod 42-b is used to extend the use length of the locking part 42, and at the same time, the two form a step configuration after being combined, because the movable cavity 41-a1 also presents a step configuration (i.e., the combination of the wide section 41-a11 and the narrow section 41-a12), so that the locking part 42 can be maintained in the movable cavity 41-a1, and the wide section 41-a11 and the narrow section 41-a12 are both circular in configuration, and the configurations of the locking column 42-a and the connecting rod 42-b match them, so that the locking part 42 can also rotate in the movable cavity 41-a1.

[0029] A buried hole 42-c1 is provided on the end face of the gripping block 42-c close to the connecting rod 42-b, and one end of the connecting rod 42-b connected to the gripping block 42-c is placed in the buried hole 42-c1. A spring 6 is provided in the buried hole 42-c1 and is sleeved on the connecting rod 42-b and has an elastic compression amount. One end of the spring 6 is fixed to the connecting block 41-a to set the connecting surface of the connecting rod 42-b, and the other end is fixed to the buried hole 42-c1 to set the connecting surface of the connecting rod 42-b. Such a setting makes the locking part 42 self-resetting, that is, after the locking part 42 is reset, it simultaneously disengages from the locking hole 5 and the plug hole 31-b, and the buried hole 42-c1 allows one end of the spring 6 to be hidden in the gripping block 42-c, and the inner surface of the buried hole 42-c1 can also abut against the spring, which can reduce the impact on the spring 6 when operating the locking part 42.

[0030] The inner circumference of the locking hole 5 is provided with a stop block 51 for combining with the locking column 42-a to limit the locking column 42-a in the locking hole 5, and the outer circumference of the locking column 42-a is provided with a third guide channel 42-a1, a fourth guide channel 42-a2, and a locking channel 42-a3 that are interconnected. The third guide channel 42-a1 is provided with a side inlet 42-a11 on the locking column 42-a for the stop block 51 to enter the third guide channel 42-a1. The stop block 51 passes through the third guide channel 42-a1 and the fourth guide channel 42-a2 to reach the locking channel 43-a3. After the locking channel 43-a3 is combined with the stop block 51, the locking The column 42-a is confined in the locking hole 5 and prevents the locking part 42 from moving without human operation. Such an arrangement can achieve the locking cooperation between the locking hole 5 and the locking part 42, that is, the side inlet 42-a11 is used to allow the stop block 51 to enter the third guide channel 42-a1, and then the stop block 51 is rotated from the third guide channel 42-a1 to the locking channel 43-a3 via the fourth guide channel 42-a2, so that the stop block 51 is always maintained in the locking channel 43-a3 under the traction of the resetting action of the spring 6, that is, the stop block 51 prevents the rotation and movement of the locking part, so that the annular shell 3 is always connected to the annular base 2.

[0031] A pointing arrow mark 7 is provided on the end surface of the gripping block 42-c away from the connecting rod 42-b, and a prompt mark 8 representing open and closed is provided on the end surface of the connecting block 41-a away from the assembly base surface 41-c. Such a setting provides a prompt to the user, that is, when the pointing arrow mark 7 points to the prompt mark 8 of close (triangle), the stop block 51 can enter the third guide channel 42-a1, and when the pointing arrow mark 7 points to the prompt mark 8 of open (circle) after rotation, the stop block 51 can enter the locking channel 43-a3, thereby completing the locking.

[0032] 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 annular housing that is easy to disassemble, comprising a substrate (1), an annular base (2), and an annular housing (3), wherein the annular base (2) is arranged at a central position of an upper end surface of the substrate (1) and has an annular slot (21), and the annular housing (3) has an annular insert ring (31) that is plugged into and fits with the annular slot (21), characterized in that: The annular base (2) forms an outer ring portion (22) and an inner ring portion (23) through the annular slot (21); the outer ring portion (22) and the inner ring portion (23) are both provided with a plurality of pre-positioning channels (24) distributed in an annular array and communicating with the annular slot (21); the pre-positioning channels (24) are both provided with upper inlets (24-a) on the outer ring portion (22) and the inner ring portion (23); and adjacent pre-positioning channels (24) are provided with a plurality of pre-positioning channels (24) disposed on the outer ring portion (22). The invention relates to a locking member (4) on the inner ring portion (22), and a locking hole (5) arranged on the inner ring portion (23) and engaging with the locking member (4), the annular insert ring (31) is provided with a pre-positioning block (31-a) which enters the pre-positioning channel (24) from the upper inlet (24-a) and can move in the pre-positioning channel (24), and a hole (31-b) arranged on the annular insert ring (31) and for the locking member (4) to pass through is provided between two adjacent pre-positioning blocks (31-a).

2. The easily disassembled relay annular housing according to claim 1, characterized in that: The pre-positioning channel (24) comprises a first guide channel (24-b) and a second guide channel (24-c) which are interconnected, wherein the first guide channel (24-b) is interconnected with the upper inlet (24-a), and each of the second guide channels (24-c) extends in a clockwise direction and allows the annular housing (3) to be prevented from moving in a direction away from the annular slot (21) when the pre-positioning block (31-a) is placed in the second guide channel (24-c).

3. The easily disassembled annular relay housing according to claim 2, characterized in that: The locking member (4) comprises a mounting portion (41) and a locking portion (42), wherein the mounting portion (41) is arranged on the outer peripheral surface of the outer ring portion (22) away from the annular slot (21), and the locking portion (42) is movably arranged in the mounting portion (41) and is used to lock with the locking hole (5), and at the same time passes through the insertion hole (31-b) to prevent the annular shell (3) from rotating in the counterclockwise direction when the annular shell (3) is combined with the annular base (2).

4. The easily disassembled annular relay housing according to claim 3, characterized in that: The mounting portion (41) includes a connecting block (41-a) providing a moving guide, and connecting plates (41-b) extending from both sides of the connecting block (41-a), the connecting block (41-a) and the connecting plate (41-b) both having an assembly base surface (41-c) close to the outer peripheral surface of the outer ring portion (22), the assembly base surface (41-c) being an arc-shaped surface matching the outer peripheral surface of the outer ring portion (22), a moving cavity (41-a1) for the locking portion (42) to move is provided in the connecting block (41-a), and the connecting plate (41-b) is connected to the outer ring portion (22) by bolts.

5. The easily disassembled annular relay housing according to claim 4, characterized in that: The locking portion (42) comprises a locking column (42-a), a connecting rod (42-b) extending from the locking column (42-a), and a grasping block (42-c) connected to the connecting rod (42-b) as a grasping component. Both the locking column (42-a) and the connecting rod (42-b) move in the moving cavity (41-a1) and are partially covered by the moving cavity (41-a1). The moving cavity (41-a1) has a wide section (41-a11) matching the outer diameter of the locking column (42-a) and a narrow section (41-a12) matching the outer diameter of the connecting rod (42-b).

6. The easily disassembled annular relay housing according to claim 5, characterized in that: A buried hole (42-c1) is provided on the end surface of the grasping block (42-c) close to the connecting rod (42-b); one end of the connecting rod (42-b) connected to the grasping block (42-c) is placed in the buried hole (42-c1); a spring (6) which is sleeved on the connecting rod (42-b) and has an elastic compression amount is provided in the buried hole (42-c1); one end of the spring (6) is fixed to the connecting block (41-a) for setting the connecting surface of the connecting rod (42-b); and the other end is fixed to the buried hole (42-c1) for setting the connecting surface of the connecting rod (42-b).

7. The easily disassembled annular relay housing according to claim 6, characterized in that: A stop block (51) is provided on the inner circumference of the locking hole (5) for combining with the locking column (42-a) to confine the locking column (42-a) within the locking hole (5); a third guide channel (42-a1), a fourth guide channel (42-a2), and a locking channel (42-a3) which are interconnected are provided on the outer circumference of the locking column (42-a); the third guide channel (42-a1) is provided on the locking column (42-a) for the stop block to be connected to the locking column (42-a). (51) enters the side entrance (42-a11) of the third guide channel (42-a1), and the stop block (51) reaches the locking channel (43-a3) through the third guide channel (42-a1) and the fourth guide channel (42-a2). After the locking channel (43-a3) is combined with the stop block (51), the locking column (42-a) is confined in the locking hole (5) and the locking portion (42) is prevented from moving under non-human operation.

8. The easily disassembled annular relay housing according to claim 7, characterized in that: A pointing arrow mark (7) is provided on the end surface of the gripping block (42-c) away from the connecting rod (42-b), and a prompt mark (8) representing opening and closing is provided on the end surface of the connecting block (41-a) away from the assembly base surface (41-c).

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