Limiting quick-insertion structure

Abstract

The utility model is suitable for the field of quick butt joint mechanical structures, and provides a limiting quick insertion structure which comprises an outer shell, a connecting part and a hole seat are installed on the outer shell, and through holes are formed in the middle of the connecting part and the middle of the hole seat. A pin seat penetrating through the outer shell is installed on the side, close to the outer shell, of the connecting part, a tooth groove is formed in the pin seat, a pin shaft is arranged in the pin seat in a penetrating mode, a plug pin rotating seat matched with the pin seat is fixedly connected to the pin shaft, a rotary knob is installed at the end, away from the connecting part, of the pin shaft, and a spring is arranged between the plug pin rotating seat and the hole seat; the end, close to the pin base, of the plug pin rotating base is fixedly connected with a locking pin corresponding to the tooth groove and capable of being inserted into the tooth groove. Therefore, the device can realize an accurate two-stage limiting function, and is more reliable compared with a traditional single-stage limiting structure; the linkage design of the spring and the bolt rotating base endows the device with the self-resetting characteristic, state switching can be completed only through one-time pulling and rotating action during operation, and the rapid limiting function is achieved.

Description

Technical Field

[0001] This invention is applicable to the field of quick-connect mechanical structures and provides a limiting quick-connect structure. Background Technology

[0002] Currently, signal receiving devices are typically equipped with rotating doors for easy inspection and maintenance. These doors not only provide convenient access, allowing maintenance personnel to easily enter the equipment for inspection, repair, or replacement of parts, but also provide necessary operating space without affecting the normal operation of the equipment. The design of rotating doors generally requires a simple structure, easy operation, and the ability to ensure they are securely closed during operation to prevent external environmental influences on the signal receiving device.

[0003] To prevent revolving doors from opening accidentally without being locked, limiting devices are typically used to ensure the door is secured and closed. These limiting devices usually employ mechanical mechanisms, such as spring locks, latches, or knob locks, to ensure the door remains firmly in place after closing, preventing it from opening on its own due to vibration or external forces during equipment operation.

[0004] However, existing limit devices often suffer from complex operation and inconvenient quick locking. In practical use, many limit devices require manual rotation, pushing, or pulling, which is not only time-consuming and labor-intensive, but may also prevent maintenance personnel from quickly locking the device in emergency situations, increasing operational inconvenience. Utility Model Content

[0005] To address the aforementioned deficiencies, the present invention aims to provide a limiting quick-connect structure to solve the problems mentioned in the background art. The device includes an outer shell with an internal receiving cavity, a connecting part installed on one side of the outer shell, and a hole seat installed on the side of the outer shell away from the connecting part. Both the connecting part and the hole seat have through holes in their middle portions.

[0006] A pin seat passing through the outer shell is installed on the side of the connecting part near the outer shell. The pin seat has a toothed groove, and a pin shaft passes through the pin seat. A pin rotating seat that mates with the pin seat is fixedly connected to the pin shaft. A knob is installed on the end of the pin shaft away from the connecting part. A spring is provided between the pin rotating seat and the hole seat. A locking pin that corresponds to the toothed groove and can be inserted into the toothed groove is fixedly connected to the end of the pin rotating seat near the pin seat.

[0007] Furthermore, the top of the outer casing has an opening, and a top cover is detachably connected to the top of the outer casing by bolts.

[0008] Furthermore, the pin seat has a first toothed groove and a second toothed groove on its end face away from the connecting part, and the length of the first toothed groove is greater than the length of the second toothed groove; the first toothed groove and the second toothed groove are arranged at the same interval on the end face of the pin seat.

[0009] Furthermore, the two ends of the spring are fixedly connected to the pin rotating seat and the hole seat respectively; and the spring is in a state of no force when the locking pin is located in the first tooth groove.

[0010] Furthermore, there are two of each of the first and second toothed grooves on the pin seat, and the two first toothed grooves and the two second toothed grooves are evenly spaced on the top of the pin seat; there are two locking pins on the pin swivel seat, and the two locking pins are symmetrically arranged.

[0011] Furthermore, the top of the pin seat is provided with a first pin seat surface and a second pin seat surface between the first tooth groove and the second tooth groove, and the first pin seat surface and the second pin seat surface are spaced apart from each other; the height of the first pin seat surface is higher than the height of the second pin seat surface.

[0012] Furthermore, an indicator is provided on the top of the top cover.

[0013] Furthermore, the outer casing has a mounting portion on the side away from the top cover, and the mounting portion has multiple screw holes.

[0014] This invention achieves a precise dual-level limiting function by locking the pin through the depth difference between the first and second tooth grooves on the pin seat, which is more reliable than the traditional single-level limiting structure. The linkage design of the spring and the pin rotating seat gives the device a self-resetting characteristic, and the state switching can be completed with only a single pull and rotate action during operation, realizing the function of rapid limiting. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the device structure;

[0016] Figure 2 This is a schematic diagram of the internal structure of the device;

[0017] Figure 3 This is a schematic diagram of the pin-rotor structure;

[0018] Figure 4 This is a schematic diagram of the pin seat structure;

[0019] In the figure: 1-outer shell; 11-mounting part; 12-hole seat; 2-top cover; 21-indicator; 3-connecting part; 4-pin; 5-knob; 6-pin seat; 61-first tooth groove; 62-second tooth groove; 63-first pin seat surface; 64-second pin seat surface; 7-pin rotating seat; 71-locking pin; 8-spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0024] See Figure 1-4 The purpose of this utility model is to provide a limiting quick-connect structure, including a square outer shell 1 with an internal cavity and an opening at the top. A top cover 2 is detachably connected to the top of the outer shell 1 by bolts. A connecting part 3 is detachably connected to one side of the outer shell 1 by bolts; a hole seat 12 is detachably connected to the side of the outer shell 1 away from the connecting part 3 by bolts. Both the connecting part 3 and the hole seat 12 have through holes in their middle portions.

[0025] A pin seat 6, passing through the outer shell 1, is fixedly connected to the side of the connecting part 3 near the outer shell 1. The pin seat 6 has a toothed groove, and a pin hole corresponding to the through hole on the connecting part 3 is provided in the middle of the pin seat 6. A pin 4 passes through the pin hole, and a pin retainer 7 that mates with the pin seat 6 is fixedly connected to the pin 4. The end of the pin 4 away from the connecting part 3 passes through the hole seat 12 and is fixedly connected to a knob 5. A spring 8 is provided between the pin retainer 7 and the hole seat 12.

[0026] The pin seat 6 has a first toothed groove 61 and a second toothed groove 62 on its end face away from the connecting part. The first toothed groove 61 and the second toothed groove 62 have different lengths along the height direction of the pin seat 6, and the length of the first toothed groove 61 is greater than the length of the second toothed groove 62. That is, the pin seat 6 has toothed grooves of different depths, with the deeper toothed groove being the first toothed groove 61 and the shallower toothed groove being the second toothed groove 62. The first toothed groove 61 and the second toothed groove 62 are arranged at intervals on the end face of the pin seat 6. The end of the pin swivel 7 near the pin seat 6 is fixedly connected to a locking pin 71 that corresponds to the toothed groove and can be inserted into the toothed groove.

[0027] Therefore, the user can pull the pin 4 by turning the knob, causing it to slide along the through hole in the connecting part 3 and the hole seat 12 inside the pin 4 device. When the knob 5 is pulled away from the hole seat 12, the pin rotating seat 7 moves synchronously, and the spring 8 is compressed. If the knob is released at this time, the pin rotating seat 7 returns to its original position. In use, the locking pin 71 can be inserted into different toothed grooves, namely the first toothed groove 61 or the second toothed groove 62, depending on the rotation angle of the knob. Since the depth of the first toothed groove 61 and the second toothed groove 62 is different, when the locking pin 71 is inserted into the first toothed groove 61, the pin 4 is in the extended state, that is, at the maximum extension distance at the connecting part 3; when the locking pin 71 is inserted into the second toothed groove 62, the pin 4 is in the retracted state, that is, at the maximum extension distance at the connecting part 3.

[0028] Preferably, the two ends of the spring 8 are fixedly connected to the pin rotating seat 7 and the hole seat 12 respectively; and when the locking pin 71 is located in the first tooth groove 61, the spring 8 is in a state of no force. Thus, in use, when the locking pin 71 is located in the first tooth groove 61, the pin shaft 4 is in an extended state, and the device is used to lock the revolving door; when it is necessary to unlock the revolving door, the locking pin 71 can be aligned with the second tooth groove 62 and pushed in by pulling and rotating the knob 5, which can lock the locking pin 71 with the second tooth groove 62. At this time, the spring has rotational potential energy and elastic potential energy, which can press the locking pin 71 tightly in the second tooth groove 62, and it is in an unlocked state. When it is necessary to lock the revolving door again, it is only necessary to pull the knob 5 slightly, and the rotational potential energy is released, causing the locking pin 71 to rotate to the first tooth groove 61 and engage, completing the quick engagement.

[0029] Preferably, two of each of the first toothed grooves 61 and the second toothed grooves 62 are provided on the pin seat 6, and the two first toothed grooves 61 and the two second toothed grooves 62 are evenly spaced on the top of the pin seat 6; that is, the first toothed grooves 61 and the second toothed grooves 62 are spaced apart, and the two first toothed grooves 61 are symmetrically arranged, and the two second toothed grooves 62 are symmetrically arranged. Two locking pins 71 are provided on the pin rotating seat 7, and the two locking pins 71 are symmetrically arranged.

[0030] Preferably, the top of the pin seat 6 is provided with a first pin seat surface 63 and a second pin seat surface 64 located between the first tooth groove 61 and the second tooth groove 62, with the first pin seat surface 63 and the second pin seat surface 64 spaced apart from each other; that is, the top of the pin seat 6 is provided with two first pin seat surfaces 63 and two second pin seat surfaces 64. The height of the first pin seat surface 63 is higher than the height of the second pin seat surface 64. When the pin shaft 4 is at its maximum pulling distance, the end face of the locking pin 71 (the side of the locking pin 71 away from the insert pivot 7) is always located between the first pin seat surface 63 and the second pin seat surface 64. Thus, when the operator pulls and rotates the pin shaft 4, it will not rotate excessively; and when the operator is about to lock the revolving door, pulling the pin shaft 4 will not cause the pin shaft 4 to rotate excessively and spring back. Thus, the first pin seat surfaces 63 and the second pin seat surfaces 64 at different heights cooperate with the locking pin 71 to play a limiting role.

[0031] Preferably, the top of the top cover 2 is provided with an indicator 21, which is used to indicate the relationship between the rotation direction of the knob 5 and the engagement state, and can more clearly indicate the usage of the device.

[0032] Preferably, the outer casing 1 has a mounting portion 11 on the side away from the top cover 2, and the mounting portion 11 has multiple screw holes. This allows the device to be fixedly connected to the revolving door via the mounting portion 11.

[0033] In summary, the usage method and structural principle of this limiting quick-connect structure in actual use are as follows: During installation, the outer shell 1 is fixed to the revolving door frame through the screw holes of the mounting part 11. During operation, pulling the knob 5 outward causes the pin 4 to slide along the hole seat 12, compressing the spring 8 to disengage the pin rotating seat 7 from the tooth groove of the pin seat 6. At this time, rotating the knob 5 adjusts the phase angle of the locking pin 71. When the locking pin 71 is aligned with the second tooth groove 62, pushing it will also push the pin rotating seat of the spring 8, and the locking pin 71 will insert into the shallow groove to release the pin 4 from the corresponding fixing hole and maintain the retracted state (the pin 4 is in the minimum extension state). If it is necessary to lock the revolving door, pulling the knob 5 will disengage the locking pin 71 from the second tooth groove 62, and the pin 4 will move on its own under the action of the spring 8 and engage with the first tooth groove 61. The first pin seat surface 63 and the second pin seat surface 64 limit the rotation angle of the locking pin 71 through the height difference to prevent over-rotation. The indicator 21 on the top cover 2 clearly indicates the correspondence between the rotation direction of the knob 5 and the locking state.

[0034] Therefore, the device can lock the pin 71 by the depth difference between the first tooth groove 61 and the second tooth groove 62 on the pin seat 6, thus achieving a precise two-stage limit function, which is more reliable than the traditional single-stage limit structure. The linkage design of the spring 8 and the pin rotating seat 7 gives the device a self-resetting characteristic. During operation, only a single pull and rotate action is needed to complete the state switching, realizing the function of rapid limit.

[0035] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A limiting quick plug structure, characterized in that, The utility model provides a kind of lock, including the outer shell (1) with containing cavity inside, one side of the outer shell (1) is equipped with connecting part (3);The side surface of the outer shell (1) away from connecting part (3) is equipped with hole seat (12), and the middle part of connecting part (3) and hole seat (12) is equipped with through-hole; Connecting part (3) is equipped with pin seat (6) passing through outer shell (1) on the side close to outer shell (1), pin seat (6) is equipped with gear slot on it, pin shaft (4) is arranged in pin seat (6), pin shaft (4) is fixedly connected with bolt turn seat (7) matched with pin seat (6), and knob (5) is arranged on the end of pin shaft (4) away from connecting part (3), spring (8) is arranged between bolt turn seat (7) and hole seat (12);The end of bolt turn seat (7) close to pin seat (6) is fixedly connected with locking pin (71) corresponding with gear slot and capable of being inserted into gear slot.

2. The limiting quick plug structure according to claim 1, characterized in that, The top of the outer shell (1) is provided with an opening, and the top of the outer shell (1) is detachably connected with a top cover (2) through bolts.

3. The limiting quick plug structure according to claim 1, wherein, The end surface of the pin seat (6) away from the connecting part is provided with a first gear slot (61) and a second gear slot (62), and the length of the first gear slot (61) is greater than the length of the second gear slot (62); The first gear slot (61) and the second gear slot (62) are arranged at the same interval on the end surface of the pin seat (6).

4. The limiting quick plug structure according to claim 3, characterized in that, The two ends of the spring (8) are fixedly connected with the bolt turn seat (7) and the hole seat (12) respectively; and when the locking pin (71) is located in the first gear slot (61), the spring (8) is in a force-free state.

5. The limiting quick plug structure according to claim 4, characterized in that, The first gear slot (61) and the second gear slot (62) are provided with two on the pin seat (6), and the two first gear slots (61) and the two second gear slots (62) are uniformly and intervaliy arranged on the top of the pin seat (6); The locking pin (71) is provided with two on the bolt turn seat (7), and the two locking pins (71) are symmetrically arranged.

6. The limiting quick plug structure according to claim 5, characterized in that, The top of the pin seat (6) is provided with a first pin seat surface (63) and a second pin seat surface (64) between the first gear slot (61) and the second gear slot (62), and the first pin seat surface (63) and the second pin seat surface (64) are arranged at intervals; The height of the first pin seat surface (63) is higher than the height of the second pin seat surface (64).

7. The limiting quick plug structure according to claim 2, wherein, The top of the top cover (2) is provided with an indicator (21).

8. The limiting quick plug structure according to claim 2, wherein, The side of the outer shell (1) away from the top cover (2) is provided with a mounting portion (11), and a plurality of screw holes are arranged on the mounting portion (11).

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