A relay limit structure and safety relay
By designing a relay limit structure including limiting parts and telescopic parts, the problem of labor-intensive and unstable installation and use of existing safety relays is solved, and more stable installation and use is achieved.
Patent Information
- Application Number
- CN202421399863.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-19
AI Technical Summary
Existing safety relays are laborious and unstable when installed and removed, and are prone to shaking.
A relay limiting structure is designed, including cabinet body, transverse column, limiting parts and telescopic parts. The limiting member consists of a first limiting rod, a second limiting rod, a limiting block and a telescopic member. The telescopic member includes a telescopic rod and an elastic member. The limiting rod extends into the through hole through the elastic force recovery of the elastic member to achieve a stable limit of the relay.
The relay limit structure is more convenient when installed and removed, and is installed stably, so the relay body is not easy to shake, solving the problem of labor and instability in the prior art.
Smart Images
Figure CN222705378U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of relays, in particular to a relay limit structure and a safety relay. Background Art
[0002] A safety relay is a special protection device used in electrical control circuits. Its main function is to prevent dangerous operations of equipment or systems by cutting off or controlling the on and off of the circuit when an abnormal situation is detected, thereby protecting the safety of personnel and equipment.
[0003] The existing safety relay has a snap-in groove at the rear end, which cooperates with the guide rail in the electric cabinet. When installing the safety relay, the snap-in groove and the guide rail are snap-fitted by rigid extrusion. When this snap-in method is implemented, the installation or removal process is relatively laborious, and this installation method is not stable enough, and the safety relay is prone to shaking.
[0004] Therefore, it is necessary to provide a new relay limit structure and a safety relay to solve the above technical problems. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides a relay limit structure and a safety relay.
[0006] The utility model provides a relay limiting structure comprising a cabinet, wherein a horizontal column is fixedly arranged in the middle of the inner side of the cabinet, a notch is provided on the horizontal column, and accommodation spaces are provided in the horizontal columns on both sides of the notch, and a limiting member is arranged in the accommodation space;
[0007] The limiting member includes a first limiting rod and a second limiting rod, a pull-out groove is provided at one end of the first limiting rod, a limiting block is fixedly provided at one end of the second limiting rod, and the limiting block can extend into the pull-out groove, and a telescopic member is fixedly provided on one side of the first limiting rod and the second limiting rod, and the telescopic member includes a telescopic rod and an elastic member, and the elastic member is arranged in the telescopic rod.
[0008] Preferably, the telescopic rod includes a cylinder seat and a movable rod, a groove is opened in the middle of the cylinder seat, and the movable rod can move in the groove, one end of the elastic member is fixedly connected to the bottom of the groove, the other end of the elastic member is fixedly connected to the bottom of the movable rod, the other end of the movable rod is fixedly connected to the first limit rod and the second limit rod, and the bottom of the cylinder seat is fixedly connected to the side wall of the accommodating space.
[0009] Preferably, the elastic member is a spring, and the first limiting rod and the second limiting rod are both “L”-shaped rods.
[0010] Preferably, a through groove is provided on the upper part of the horizontal column, and the through groove is communicated with the accommodating space. Limiting grooves are provided on both sides of the recess. One end of the first limiting rod and the second limiting rod can move in the limiting grooves. The limiting groove is communicated with the accommodating space, and one end of the first limiting rod and the second limiting rod both extend out of the through groove, and the size of the through groove is larger than the end size of the first limiting rod and the second limiting rod.
[0011] Preferably, the first limiting rod, the second limiting rod, the limiting block, the cylinder seat and the movable rod are all made of polyethylene.
[0012] A safety relay comprises a relay body and a relay limiting structure as in the above technical solution.
[0013] Preferably, the relay body is arranged in the recess, a through hole is opened in the middle of the rear end of the relay body, and both the first limiting rod and the second limiting rod can extend into the through hole.
[0014] Compared with the related art, the relay limiting structure and safety relay provided by the utility model have the following beneficial effects: when the relay limiting mechanism is implemented, the first limiting rod and the second limiting rod are pulled to both sides, the telescopic rod contracts, the elastic member is squeezed, the relay body is placed in the recess, and the through hole is aligned with the limiting groove, and after alignment, one end of the first limiting rod and the second limiting rod is released, and the elastic member returns to its original state due to the elastic force, so that the other end of the first limiting rod and the second limiting rod extends into the through hole, the limiting block extends into the pull-out groove, and the relay body is limited on the cabinet. This installation method is more convenient and stable during installation and removal, and the relay body is not easy to shake. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A schematic diagram of the structure of a relay limit structure and a safety relay provided by the utility model;
[0016] Figure 2 for Figure 1 A cutaway view of the crossbar shown;
[0017] Figure 3 for Figure 2 The structural schematic diagram of the limiting member shown;
[0018] Figure 4 for Figure 1 The structural diagram of the relay body is shown.
[0019] Numbers in the figure: 1, cabinet; 2, horizontal column; 3, relay body; 4, notch; 5, first limit rod; 6, second limit rod; 7, pull-out groove; 8, limit block; 9, cylinder seat; 10, movable rod; 11, through hole; 12, elastic member; 13, accommodating space; 14, limit groove; 15, through groove. DETAILED DESCRIPTION
[0020] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.
[0021] Please refer to Figure 1-Figure 4 ,in, Figure 1 A schematic diagram of the structure of a relay limit structure and a safety relay provided by the utility model; Figure 2 for Figure 1 A cutaway view of the crossbar shown; Figure 3 for Figure 2 The structural schematic diagram of the limiting member shown; Figure 4 for Figure 1 The structural diagram of the relay body is shown.
[0022] In the specific implementation process, Figure 1-Figure 4 As shown, a relay limit structure comprises a cabinet 1, a horizontal column 2 is fixedly arranged in the middle of the inner side of the cabinet 1, a notch 4 is opened on the horizontal column 2, and an accommodating space 13 is opened in the horizontal column 2 on both sides of the notch 4, and a limit member is arranged in the accommodating space 13;
[0023] The limiting member includes a first limiting rod 5 and a second limiting rod 6. A pull-out groove 7 is provided at one end of the first limiting rod 5. A limiting block 8 is fixedly arranged at one end of the second limiting rod 6. The limiting block 8 can extend into the pull-out groove 7 to perform secondary limiting on the relay body 3, so that the relay body 3 is more stably arranged in the recess 4. A telescopic member is fixedly arranged on one side of the first limiting rod 5 and the second limiting rod 6. The telescopic member includes a telescopic rod and an elastic member 12. The elastic member 12 is arranged in the telescopic rod. When the first limiting rod 5 and the second limiting rod 6 are pulled to both sides, the telescopic rod contracts, the elastic member 12 is squeezed, and the first limiting rod 5 and the second limiting rod 6 are driven to move.
[0024] The telescopic rod includes a cylinder seat 9 and a movable rod 10. A groove is opened in the middle of the cylinder seat 9. The movable rod 10 can move in the groove. One end of the elastic member 12 is fixedly connected to the bottom of the groove, and the other end of the elastic member 12 is fixedly connected to the bottom of the movable rod 10. The other end of the movable rod 10 is fixedly connected to the first limiting rod 5 and the second limiting rod 6. The bottom of the cylinder seat 9 is fixedly connected to the side wall of the accommodating space 13. Pulling one end of the first limiting rod 5 and the second limiting rod 6 to extend out of the through groove 15 drives the movable rod 10 to move into the cylinder seat 9. The movable rod 10 squeezes the elastic member 12 to drive the first limiting rod 5 and the second limiting rod 6 to move.
[0025] The elastic member 12 is a spring, and the first limiting rod 5 and the second limiting rod 6 are both “L”-shaped rods.
[0026] A through slot 15 is provided on the upper part of the horizontal column 2, and the through slot 15 is communicated with the accommodating space 13. Limiting slots 14 are provided on both sides of the recess 4. One end of the first limiting rod 5 and the second limiting rod 6 can move in the limiting slot 14. The limiting slot 14 is communicated with the accommodating space 13. One end of the first limiting rod 5 and the second limiting rod 6 both extend out of the through slot 15. The size of the through slot 15 is larger than the end size of the first limiting rod 5 and the second limiting rod 6, which is convenient for pulling the first limiting rod 5 and the second limiting rod 6.
[0027] The first limiting rod 5, the second limiting rod 6, the limiting block 8, the cylinder seat 9 and the movable rod 10 are all made of polyethylene. Polyethylene has good insulation performance, wear resistance, corrosion resistance, and is relatively cheap.
[0028] A safety relay comprises a relay body 3 and a relay limiting structure as in the above technical solution.
[0029] The relay body 3 is disposed in the recess 4 . A through hole 11 is formed in the middle of the rear end of the relay body 3 . Both the first limiting rod 5 and the second limiting rod 6 can extend into the through hole 11 .
[0030] The working principle provided by the utility model is as follows: during the specific implementation of the relay limiting mechanism, the first limiting rod 5 and the second limiting rod 6 are pulled out of one end of the through slot 15 to drive the movable rod 10 to move into the cylinder seat 9, and the movable extrusion elastic member 12 of the movable rod 10 causes the first limiting rod 5 and the second limiting rod 6 to extend into the limiting groove 14, and the relay body 3 is extended into the recess 4, and the through hole 11 is aligned with the limiting groove 14. After alignment, the first limiting rod 5 and the second limiting rod 6 are released, and the ends of the first limiting rod 5 and the second limiting rod 6 are extended into the through hole 11, and the limiting block 8 is extended into the drawing groove 7 to limit the relay body 3. When the relay body 3 needs to be taken down, the first limiting rod 5 and the second limiting rod 6 are pulled out of one end of the through slot 15 again to make the limiting block 8 leave the drawing groove 7, and the first limiting rod 5 and the second limiting rod 6 leave the through hole 11, and the relay body 3 can be taken down.
[0031] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.
[0032] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A relay limit structure, characterized in that: The cabinet comprises a cabinet body (1), a horizontal column (2) is fixedly arranged in the middle of the inner side of the cabinet body (1), a notch (4) is provided on the horizontal column (2), accommodating spaces (13) are provided in the horizontal column (2) on both sides of the notch (4), and a limiting member is provided in the accommodating space (13); The limiting member comprises a first limiting rod (5) and a second limiting rod (6); a pull-out groove (7) is provided at one end of the first limiting rod (5); a limiting block (8) is fixedly arranged at one end of the second limiting rod (6); the limiting block (8) can extend into the pull-out groove (7); a telescopic member is fixedly arranged on one side of the first limiting rod (5) and the second limiting rod (6); the telescopic member comprises a telescopic rod and an elastic member (12); the elastic member (12) is arranged in the telescopic rod.
2. A relay limiting structure according to claim 1, characterized in that: The telescopic rod comprises a cylinder seat (9) and a movable rod (10); a groove is provided in the middle of the cylinder seat (9); the movable rod (10) can move in the groove; one end of the elastic member (12) is fixedly connected to the bottom of the groove; the other end of the elastic member (12) is fixedly connected to the bottom of the movable rod (10); the other end of the movable rod (10) is fixedly connected to the first limiting rod (5) and the second limiting rod (6); the bottom of the cylinder seat (9) is fixedly connected to the side wall of the accommodating space (13).
3. A relay limiting structure according to claim 2, characterized in that: The elastic member (12) is a spring, and the first limiting rod (5) and the second limiting rod (6) are both "L"-shaped rods.
4. A relay limiting structure according to claim 3, characterized in that: A through slot (15) is provided on the upper part of the cross column (2), and the through slot (15) is communicated with the accommodating space (13). Limiting slots (14) are provided on both sides of the recess (4), and one end of the first limiting rod (5) and the second limiting rod (6) can move in the limiting slot (14). The limiting slot (14) is communicated with the accommodating space (13), and one end of the first limiting rod (5) and the second limiting rod (6) both extend out of the through slot (15), and the size of the through slot (15) is larger than the size of the end of the first limiting rod (5) and the second limiting rod (6).
5. A relay limiting structure according to claim 4, characterized in that: The first limiting rod (5), the second limiting rod (6), the limiting block (8), the cylinder seat (9) and the movable rod (10) are all made of polyethylene.
6. A safety relay, characterized in that: It comprises a relay body (3) and the relay limiting structure according to any one of claims 1 to 5.
7. A safety relay according to claim 6, characterized in that: The relay body (3) is arranged in the recess (4), a through hole (11) is provided in the middle of the rear end of the relay body (3), and both the first limiting rod (5) and the second limiting rod (6) can extend into the through hole (11).