Quick-release relay plastic shell

Abstract

The utility model discloses a quick release type relay plastic shell, and relates to the field of relays. The quick-release relay plastic shell comprises a lower shell seat, an upper shell and a quick-release connecting piece arranged between the lower shell seat and the upper shell, and the quick-release connecting piece comprises a fixed seat, an expansion clamping pipe, an expansion top shaft and a spring. According to the quick-release type relay plastic shell, the expansion clamping pipe is inserted into the fixing seat, so that the bottom end of the expansion clamping pipe is located in the clamping groove, at the moment, the expansion jacking shaft is pressed downwards, the expansion jacking shaft enters the expansion clamping pipe, the fixing part at the bottom end of the expansion clamping pipe moves outwards, and therefore the whole expansion clamping pipe is clamped in the fixing seat; meanwhile, under the action of a spring, the clamping and fixing state is kept, during overhauling, the connecting frame is pulled upwards along the upper shell, so that the connecting frame drives the expansion top shaft to move upwards, at the moment, the bottom end of the expansion clamping pipe is naturally shrunk inwards to restore, then the whole upper shell is pulled up from the fixing base, and rapid disassembly and assembly are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, specifically to a quick-release relay plastic housing. Background Technology

[0002] A relay is an electrical control device commonly used in automated control circuits. It is essentially an automatic switch that uses a small current to control a large current. In circuits, it plays roles such as automatic adjustment, safety protection, and circuit switching. To ensure safety during operation, relays are usually encased in a plastic housing.

[0003] Existing relay housings are typically fixed to the relay base with bolts. During use, the bolts are usually metal, and over-tightening them can easily damage the plastic housing, resulting in poor subsequent fixing. In addition, during maintenance, a special screwdriver is required for disassembly and assembly, which is very inconvenient. Therefore, a quick-release relay plastic housing is provided. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a quick-release relay plastic housing, which solves the problem that existing relay housings are usually fixed with bolts, which can easily damage the plastic housing if over-tightened, resulting in poor subsequent fixing effect. In addition, during maintenance, a special screwdriver is required for disassembly and assembly, which is very inconvenient.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a quick-release relay plastic housing, including a lower housing base and an upper housing mounted on the top of the lower housing base, wherein a quick-release connector is installed between the upper housing base and the lower housing base, and the quick-release connector includes;

[0006] The mounting base is integrally formed on the lower housing.

[0007] An expansion clamp tube is fixedly installed on the side of the upper housing, and the bottom end of the expansion clamp tube is movably inserted into the fixed base.

[0008] The expansion top shaft is slidably set in the expansion clamp tube, and is used to push the bottom end of the expansion clamp tube outward so that the expansion clamp tube can be movably engaged with the fixed seat.

[0009] A spring, which is located on the outer surface of the upper end of the expansion top shaft, is used to keep the expansion top shaft inserted into the expansion tube.

[0010] Preferably, a support frame is integrally formed on the outer top of the lower housing, and the bottom of the upper housing abuts against the top of the support frame.

[0011] Preferably, a sealing ring is fixedly adhered to the top of the support frame, and the sealing ring is used to provide a soft seal to the bottom of the upper housing.

[0012] Preferably, a fixing tube is fixedly provided on the side of the upper shell, and the expansion clamp is fixedly connected to the bottom end of the fixing tube.

[0013] Preferably, the fixed tube has a movable chamber inside, and both the expansion shaft and the spring are disposed in the movable chamber.

[0014] Preferably, a retaining ring is fixedly sleeved on the outer surface of the expansion top shaft, one end of the spring abuts against the top of the movable cavity, and the other end of the spring abuts against the retaining ring.

[0015] Preferably, a connecting block is fixedly connected to the top of the expansion shaft, a connecting frame is slidably provided on the outer wall of the upper housing, the connecting block and the connecting frame are integrally formed, and handle grooves are provided on the bottom of both sides of the connecting frame.

[0016] Preferably, the fixing base has a slot inside, and the expansion tube is movably inserted into the slot.

[0017] Preferably, the expansion tube includes;

[0018] The tube body is conical in shape;

[0019] The inner conical groove is formed inside the tube body;

[0020] The contraction joint is located on the side wall of the pipe and extends to the bottom of the pipe.

[0021] The fixing part is integrally formed at the bottom end of the tube body, and the bottom end of the slot is provided with a slot, in which the fixing part is movably engaged.

[0022] Preferably, the bottom outer side of the fixing part is provided with a beveled surface, the top of the fixing part is provided with a horizontal surface, and the connection between the beveled surface and the horizontal surface is provided with an arc surface.

[0023] This utility model discloses a quick-release relay plastic housing, which has the following advantages: By inserting the expansion tube into the fixing seat, the bottom end of the expansion tube is placed inside the slot. At this time, the expansion top shaft is pressed down, causing the expansion top shaft to enter the expansion tube, and the fixing part at the bottom end of the expansion tube moves outward, so that the entire expansion tube is locked inside the fixing seat. At the same time, under the action of the spring, it maintains a locked and fixed state. During maintenance, by pulling the connecting bracket upward along the upper housing, the connecting bracket drives the expansion top shaft to move upward. At this time, the bottom end of the expansion tube naturally retracts inward to restore its original state. Then, the entire upper housing is pulled off the fixing seat, which facilitates quick disassembly and assembly. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall outer surface structure of this utility model;

[0026] Figure 2 This is an exploded view of the overall structure of this utility model;

[0027] Figure 3 This is an exploded view of the internal structure of the quick-release connector of this utility model;

[0028] Figure 4 This is a schematic diagram of the expansion clamp tube structure of this utility model.

[0029] In the diagram: 1. Lower shell base; 12. Support frame; 13. Sealing ring; 2. Upper shell; 3. Quick-release connector; 31. Fixed base; 32. Connecting frame; 33. Fixed tube; 34. Handle groove; 35. Expansion clamp tube; 351. Tube body; 352. Inner conical groove; 353. Contraction joint; 354. Fixed part; 355. Beveled surface; 356. Arc surface; 357. Horizontal surface; 36. Expansion top shaft; 37. Connecting block; 38. Retaining ring; 39. Movable chamber; 310. Spring; 311. Slot; 312. Slot. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] This application provides a quick-release relay plastic housing, which solves the problems of existing relay housings, which are usually fixed with bolts. Over-tightening can easily damage the plastic housing, resulting in poor subsequent fixing effect. At the same time, during maintenance, a special screwdriver is required for disassembly and assembly, which is very inconvenient.

[0032] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0033] This utility model discloses a quick-release relay plastic housing.

[0034] Example 1

[0035] According to the appendix Figure 1-4 As shown, it includes a lower housing 1 and an upper housing 2 installed on the top of the lower housing 1. A quick-release connector 3 is installed between the upper housing 2 and the lower housing 1. The quick-release connector 3 includes:

[0036] The fixing seat 31 is integrally formed on the lower shell seat 1;

[0037] The expansion tube 35 is fixedly installed on the side of the upper housing 2, and the bottom end of the expansion tube 35 is movably inserted into the fixed base 31.

[0038] The expansion top shaft 36 is slidably disposed in the expansion clamp tube 35 and is used to push the bottom end of the expansion clamp tube 35 outward so that the expansion clamp tube 35 is movably engaged with the fixed seat 31.

[0039] Spring 310 is disposed on the outer surface of the upper end of expansion top shaft 36 and is used to keep expansion top shaft 36 inserted in expansion clamp tube 35. Expansion clamp tube 35 is made entirely of shape memory engineering plastic.

[0040] The lower shell 1 has an integrally formed support frame 12 on the outer top of its top, and the bottom of the upper shell 2 abuts against the top of the support frame 12.

[0041] A sealing ring 13 is fixedly bonded to the top of the support frame 12. The sealing ring 13 is used to provide a soft seal to the bottom of the upper housing 2.

[0042] A fixing tube 33 is fixedly installed on the side of the upper housing 2, and an expansion clamp tube 35 is fixedly connected to the bottom end of the fixing tube 33.

[0043] The fixed tube 33 has a movable chamber 39 inside, and the expansion top shaft 36 and the spring 310 are both located in the movable chamber 39.

[0044] A retaining ring 38 is fixedly sleeved on the outer surface of the expansion top shaft 36. One end of the spring 310 abuts against the top of the movable chamber 39, and the other end of the spring 310 abuts against the retaining ring 38.

[0045] The top of the expansion shaft 36 is fixedly connected to a connecting block 37, and a connecting frame 32 is slidably provided on the outer wall of the upper housing 2. The connecting block 37 and the connecting frame 32 are integrally formed, and handle grooves 34 are provided on the bottom of both sides of the connecting frame 32.

[0046] The mounting base 31 has a slot 311 inside, and the expansion tube 35 is movably inserted into the slot 311.

[0047] The expansion tube 35 includes;

[0048] The tube body 351 is conical in shape;

[0049] The inner conical groove 352 is formed in the tube body 351;

[0050] A contraction joint 353 is formed on the side wall of the pipe body 351 and extends to the bottom end of the pipe body 351.

[0051] The fixing part 354 is integrally formed at the bottom end of the tube body 351. The bottom end of the slot 311 has a slot 312, and the fixing part 354 is movably engaged in the slot 312.

[0052] Working principle: During installation, the connecting frame 32 is pulled upward along the upper housing 2, causing the connecting frame 32 to drive the expansion top shaft 36 to move upward. This causes the retaining ring 38 to push the bottom end of the spring 310 upward, compressing the spring 310. At this time, the expansion top shaft 36 contracts upward inside the expansion clamp tube 35, and the bottom end of the expansion clamp tube 35 naturally contracts inward to return to its original position. The expansion clamp tube 35 is then inserted into the fixing seat 31, so that the bottom end of the expansion clamp tube 35 is inside the clamping groove 312. The expansion top shaft 36 is then pressed downward, causing the expansion top shaft 36 to enter the expansion clamp tube 35, causing the fixing part 354 at the bottom end of the expansion clamp tube 35 to move outward. This causes the entire expansion clamp tube 35 to be clamped inside the fixing seat 31, and under the action of the spring 310, it remains in a clamped and fixed state.

[0053] During maintenance, by pulling the connecting bracket 32 ​​upward along the upper housing 2, the connecting bracket 32 ​​drives the expansion top shaft 36 to move upward. At this time, the bottom end of the expansion clamp tube 35 naturally retracts inward to restore its original shape. Then, the entire upper housing 2 is pulled off the fixed seat 31 for easy disassembly and assembly.

[0054] Example 2

[0055] According to the appendix Figure 1-4 As shown, more specifically, based on Embodiment 1, the bottom outer side of the fixing part 354 is provided with a beveled surface 355, the top of the fixing part 354 is provided with a horizontal surface 357, and an arc surface 356 is provided at the connection between the beveled surface 355 and the horizontal surface 357.

[0056] Working principle: During installation, when the entire expansion clamp tube 35 is inserted into the fixing seat 31, the beveled surface 355 at the bottom acts as a guide. When the tube is in place, as the expansion top shaft 36 enters the expansion clamp tube 35, the fixing part 354 at the bottom of the expansion clamp tube 35 moves outward. At this time, the horizontal surface 357 of the fixing part 354 abuts against the top of the groove 312, thus preventing backflow. During disassembly, as the expansion top shaft 36 is pulled out from the expansion clamp tube 35, the fixing part 354 at the bottom of the expansion clamp tube 35 naturally contracts towards the center. At this time, the arc surface 356 is aligned with the bottom opening of the slot 311, allowing the fixing part 354 to move upward smoothly with the tube body 351 and thus detach from the fixing seat 31.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick release type plastic housing for a relay comprising a lower housing base (1) and an upper housing (2) mounted on top of the lower housing base (1), characterized in that, A quick-release connector (3) is installed between the upper housing (2) and the lower housing (1), and the quick-release connector (3) includes: The fixed base (31) is integrally formed on the lower shell base (1); An expansion clamp tube (35) is fixedly installed on the side of the upper housing (2), and the bottom end of the expansion clamp tube (35) is movably inserted into the fixed seat (31); An expansion top shaft (36) is slidably disposed in an expansion clamp tube (35) to push the bottom end of the expansion clamp tube (35) outward so that the expansion clamp tube (35) is movably engaged with the fixed seat (31). A spring (310) is provided on the outer surface of the upper end of the expansion top shaft (36) to keep the expansion top shaft (36) inserted into the expansion clamp tube (35).

2. A quick disconnect relay plastic housing according to claim 1, characterized in that: The lower shell (1) has an integrally formed support frame (12) on the outer side of its top end, and the bottom end of the upper shell (2) abuts against the top of the support frame (12).

3. A quick disconnect relay plastic housing according to claim 2, wherein: A sealing ring (13) is fixedly bonded to the top of the support frame (12), and the sealing ring (13) is used to softly seal the bottom end of the upper shell (2).

4. A quick disconnect relay plastic housing according to claim 1, wherein: A fixing tube (33) is fixedly provided on the side of the upper shell (2), and the expansion clamp tube (35) is fixedly connected to the bottom end of the fixing tube (33).

5. A quick disconnect relay plastic housing according to claim 4, wherein: The fixed tube (33) has a movable chamber (39) inside, and the expansion top shaft (36) and the spring (310) are both located in the movable chamber (39).

6. A quick disconnect relay plastic housing according to claim 5, wherein: A retaining ring (38) is fixedly sleeved on the outer surface of the expansion top shaft (36), one end of the spring (310) abuts against the top of the movable chamber (39), and the other end of the spring (310) abuts against the retaining ring (38).

7. A quick disconnect relay plastic housing as defined in claim 1 wherein: The top of the expansion shaft (36) is fixedly connected to a connecting block (37), and a connecting frame (32) is slidably provided on the outer wall of the upper shell (2). The connecting block (37) and the connecting frame (32) are integrally formed, and handle grooves (34) are provided on the bottom of both sides of the connecting frame (32).

8. A quick disconnect relay plastic housing according to claim 1, wherein: The fixed base (31) has a slot (311) inside, and the expansion tube (35) is movably inserted into the slot (311).

9. A quick disconnect relay plastic housing according to claim 8, wherein: The expansion tube (35) includes; The tube (351) is conical in shape; An inner conical groove (352) is formed in the tube body (351); A contraction joint (353) is provided on the side wall of the tube body (351) and extends to the bottom end of the tube body (351); The fixing part (354) is integrally formed at the bottom end of the tube body (351), and the bottom end of the slot (311) is provided with a slot (312), and the fixing part (354) is movably engaged in the slot (312).

10. A quick disconnect relay plastic housing according to claim 9, wherein: The bottom outer side of the fixing part (354) is provided with a chamfered surface (355), the top of the fixing part (354) is provided with a horizontal surface (357), and an arc surface (356) is provided at the connection between the chamfered surface (355) and the horizontal surface (357).

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