Connector with captive screw structure
By designing a connector with a screw structure that prevents loosening, and by using a housing, inner mold, and limiting components, the problems of easy screw loss and connector wobbling are solved, thereby improving the stability and reliability of the connector.
Patent Information
- Application Number
- CN202423302547.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Traditional connectors lack limiting structures, which makes it easy for screws to be lost and for the connector to wobble and shift on the assembly, affecting the reliability and stability of the connection.
A connector with a non-removable screw structure was designed, which adopts a structure of plastic shell, inner mold, limiting component and rubber buckle. The screw is fixed by the limiting component and the connector is fixed by the rubber buckle to prevent shaking.
It effectively prevents screw loss, improves the stability and reliability of connectors, reduces poor contact and signal interference, and extends service life.
Smart Images

Figure CN223942113U_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of connector technology, and more specifically, relates to a connector with a non-detachable screw structure. Background Technology
[0002] Connectors are used in electronic devices, enterprise servers, and other equipment to connect their internal components, enabling the transmission of signals and data between the devices. After being inserted into a component, the connector is usually secured with screws. However, traditional connectors lack a limiting structure, which makes it easy for screws to be lost after the user removes the connector from the component. Furthermore, the lack of a fixing structure after the traditional connector is inserted into the component makes it easy for the connector to wobble from side to side, resulting in misalignment. Summary of the Invention
[0003] To address the aforementioned technical problems, this invention provides a connector with a non-detachable screw structure, which solves the technical problems in the prior art where traditional connectors lack a limiting structure, leading to easy loss of the fixing screw, and where the connector is prone to displacement after being inserted into an assembly due to the lack of a fixing structure.
[0004] The purpose and effect of the connector with a non-removable screw structure of the present invention are achieved by the following specific technical means:
[0005] A connector with a non-detachable screw structure includes a housing, a PCBA board at one end of the housing, an inner mold between the PCBA board and the housing, a wire being secured at the rear end of the PCBA board, the inner mold being secured at the connection point between the PCBA board and the wire, the inner mold being secured inside the housing, an adhesive receiving groove being formed above the inner mold, the inner mold being connected to the housing and the PCBA board through quick-drying adhesive in the adhesive receiving groove, and a screw being provided on one side of the housing, the screw being connected to the housing through a limiting component.
[0006] According to a preferred embodiment, the limiting component includes a connecting seat, the connecting seat having multiple fixing blocks, each fixing block having an elastic arm, and each elastic arm having a movable groove at its rear end.
[0007] According to a preferred embodiment, one end of the screw passes through a plurality of the fixing blocks and a plurality of the elastic arms, and is engaged within the connecting seat. A spring is fitted over the screw, and one end of the spring is engaged within the connecting seat.
[0008] According to a preferred embodiment, the limiting component includes a connecting seat, a protective sleeve is provided between the connecting seat and the screw, a plurality of limiting grooves are provided on the periphery of the protective sleeve, and a plurality of limiting blocks are provided on the periphery of the connecting seat.
[0009] According to a preferred embodiment, the plurality of limiting blocks are respectively engaged in the plurality of limiting grooves, the top of the screw has a slot, and the protective sleeve is connected to the screw through the slot.
[0010] According to a preferred embodiment, the screw is fitted with a spring, one end of which is engaged in the connector and the other end is engaged in the protective sleeve, and the connector has a housing hole.
[0011] According to a preferred embodiment, the front end of the housing is provided with a connecting plate, a connector is fastened on the connecting plate, the PCBA board passes through the housing and is fastened in the connector, the front end of the housing is provided with a rubber buckle, the rubber buckle is fastened at one end of the connector, and an overflow groove is provided at the rear end of the inner mold.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. After loosening the screws on the connector, the limiting structure on the housing can securely connect the screws to the connector. This effectively avoids the problem of screws being lost after the connector is removed. This means that users do not need to worry about losing screws when maintaining the connector, saving maintenance time and costs.
[0014] 2. After the connector is inserted into the device, the rubber buckle at the front end of the housing will lock onto one end of the connector, thus fixing it in place and preventing it from shaking or shifting during use. This ensures that the connector always stays in the correct position, improving the reliability and stability of the connection, and effectively reducing contact problems or signal interference caused by shaking. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the assembled structure according to Embodiment 1 of the present invention.
[0016] Figure 2 This is a schematic diagram of the disassembled structure of Embodiment 1 of the present invention.
[0017] Figure 3 This is a cross-sectional view of the limiting component in Embodiment 1 of the present invention.
[0018] Figure 4 This is a cross-sectional structural diagram of Embodiment 1 of the present invention.
[0019] Figure 5 This is a top view structural diagram of the inner mold in Embodiment 1 of the present invention.
[0020] Figure 6This is a schematic diagram of the assembled structure according to Embodiment 2 of the present invention.
[0021] Figure 7 This is a cross-sectional view of the limiting component in Embodiment 2 of the present invention.
[0022] Figure 8 This is a schematic diagram of the structure after disassembly in Embodiment 2 of the present invention.
[0023] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0024] 1. Housing; 11. Connector; 111. Fixing block; 112. Elastic arm; 113. Movable groove; 114. Limiting block; 115. Housing hole; 12. Rubber buckle; 2. Protective sleeve; 21. Limiting groove; 3. Screw; 31. Slot; 4. Spring; 5. Inner mold; 51. Glue container; 52. Glue overflow groove; 6. PCBA board; 7. Wire; 8. Connecting plate; 81. Connector. Detailed Implementation
[0025] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solutions of the present invention, but should not be used to limit the scope of protection of the present invention.
[0026] Example 1:
[0027] like Figures 1 to 5 As shown, the present invention provides a connector with a non-detachable screw structure, including a housing 1, a PCBA board 6 at one end of the housing 1, an inner mold 5 between the PCBA board 6 and the housing 1, and a wire 7 secured at the rear end of the PCBA board 6. The inner mold 5 is secured at the connection between the PCBA board 6 and the wire 7, which effectively increases the stability of the connection between the PCBA board 6 and the wire 7, and can effectively prevent the PCBA board 6 and the wire 7 from loosening or falling off during use. This effectively reduces signal transmission problems or equipment failures caused by weak connections, and effectively increases the stability and reliability of the connector.
[0028] The inner mold 5 is fitted inside the housing 1. A glue-receiving groove 51 is provided on the top of the inner mold 5. Users can inject quick-drying glue into the glue-receiving groove 51 to increase the connection between the inner mold 5, the housing 1, and the PCBA board 6. This ensures that the internal components of the connector will not loosen or fall off during use, thus improving the stability and reliability of the connection. This allows the connector to be used in applications with high stability requirements.
[0029] An overflow groove 52 is provided at the rear end of the inner mold 5. When too much quick-drying adhesive is injected, the user can use the overflow groove 52 to discharge the excess quick-drying adhesive from the inner mold 5. This can prevent the quick-drying adhesive from overflowing into the glue container 51 and affecting the connector. The overflow groove 52 effectively improves the operability and convenience of the connector, which effectively extends the service life of the connector.
[0030] The front end of the housing 1 is provided with a connecting plate 8, on which a connector 81 is clamped. The front end of the housing 1 is provided with a rubber buckle 12, which has a beveled front end. When the user inserts the PCBA board 6 into the connector 81, the beveled surface of the rubber buckle 12 will be squeezed. Since the rubber buckle 12 is made of rubber, it has a certain elasticity. When the bevel is squeezed, the rubber buckle 12 will tilt upward. When the PCBA board 6 is inserted into the connector 81, the rubber buckle 12 will release the accumulated squeezing force and thus clamp onto the rear end of the connector 81 to fix the connector and the device together. This increases the stability and reliability of the connection between the connector and the device. Furthermore, the fixing of the rubber buckle 12 can effectively reduce the problem of poor contact or signal interference caused by its shaking.
[0031] like Figures 2 to 6 As shown, a screw 3 is provided on one side of the housing 1, and a connecting seat 11 is provided on the other side of the housing 1. Multiple fixing blocks 111 are provided inside the connecting seat 11. The diameter of the ring formed between the multiple fixing blocks 111 is larger than the screw thread, so that the screw 3 can pass through easily when the user installs it. The surfaces of the multiple fixing blocks 111 are all flat, so that the user can install the spring 4 into the connecting seat 11.
[0032] Each of the multiple fixed blocks 111 is provided with an elastic arm 112. The diameter of the ring formed by the multiple elastic arms 112 is smaller than the thread but larger than the screw. When the user installs the screw 3 into the connector 11, this structure can both limit the screw 3 and allow the screw 3 to move up and down inside.
[0033] Each of the multiple elastic arms 112 has a movable groove 113 at its rear end. When the user inserts the screw 3, the screw thread diameter is larger than the diameter of the ring formed between the multiple elastic arms 112, which will squeeze the elastic arm 112. Through the multiple movable grooves 113, the elastic arm 112 will have enough room to move when squeezed.
[0034] After the screw thread passes through, the elastic arm 112 will release its compressive force to reset. Since the screw diameter is smaller than the diameter of the ring formed between the elastic arms 112, it will not be squeezed by the elastic arms 112. This allows the screw 3 to have a certain amount of room to move after it is installed in the connector 11.
[0035] This structure eliminates the worry of losing screw 3 after loosening it, effectively saving maintenance time and costs. Screw 3 is fitted with a spring 4, one end of which is secured above multiple fixing blocks 111. When the user loosens screw 3, the compressed spring 4 releases its pressure upwards, lifting screw 3 and allowing the screw to retract into connector 11. This effectively prevents exposed screws from affecting the installation of the connector mechanism.
[0036] This structure avoids the loss of screw 3 and prevents the screw from affecting the installation of the connector. This effectively reduces the time and cost wasted by users when maintaining the connector, and also effectively increases the reliability and service life of the connector.
[0037] Example 2:
[0038] Based on the connector with a non-detachable screw structure provided in Embodiment 1 of this application, Embodiment 2 of this application proposes a connector with a non-detachable screw structure. Embodiment 2 is merely a preferred embodiment of Embodiment 1, and its implementation will not affect the independent implementation of Embodiment 1. The second embodiment of this utility model will be further described below.
[0039] like Figures 6 to 8 As shown, a protective sleeve 2 is provided between the connector 11 and the screw 3. Multiple limiting grooves 21 are provided around the protective sleeve 2, and multiple limiting blocks 114 are provided around the connector 11. The multiple limiting blocks 114 are respectively locked in the multiple limiting grooves 21. When the user loosens the screw 3, the spring 4 will release its squeezing force, thereby lifting the screw 3. The protective sleeve 2 can limit the screw 3 through the limiting blocks 114 and the limiting grooves 21. This can effectively prevent the screw 3 from moving or swinging after being lifted, which can effectively reduce the impact on the connector.
[0040] The top of the screw 3 has a slot 31, and the protective sleeve 2 is connected to the screw 3 through the slot 31. This design ensures that the protective sleeve 2 can move along with the screw 3 during the reset process, thereby maintaining the correct positional relationship. The screw 3 is covered with a spring 4. One end of the spring 4 is locked in the connector 11, and the other end is locked in the protective sleeve 2. When the spring 4 is reset and springs up, the protective sleeve 2 can also prevent foreign objects from getting stuck in the spring 4, ensuring that the spring 4 can be in a normal working state, so as to ensure that the structure can operate normally. The connector 11 has a housing hole 115. After the screw 3 is lifted, the screw will be stored in the housing hole 115 to prevent the screw from affecting the connector.
[0041] The difference between this embodiment and embodiment one lies in the protective sleeve 2 provided between the screw 3 and the connecting seat 11, forming a limiting protection structure. This structure ensures that the screw 3 will not move or swing after being pushed up when the spring 4 is reset, effectively reducing the impact on the connector and preventing foreign objects from getting stuck in the spring 4. The remaining conditions are the same as in embodiment one, so they will not be described again in this embodiment.
[0042] The foregoing has shown and described the basic principles and main features of the present invention and its advantages. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments.
Claims
1. A connector with a non-removable screw structure, characterized in that: The device includes a housing (1), one end of which is provided with a PCBA board (6). An inner mold (5) is provided between the PCBA board (6) and the housing (1). A wire (7) is attached to the rear end of the PCBA board (6). The inner mold (5) is attached at the connection between the PCBA board (6) and the wire (7). The inner mold (5) is attached inside the housing (1). A glue-receiving groove (51) is provided above the inner mold (5). The inner mold (5) is connected to the housing (1) and the PCBA board (6) through the quick-drying glue in the glue-receiving groove (51). A screw (3) is provided on one side of the housing (1). The screw (3) is connected to the housing (1) through a limiting component.
2. The connector with a non-removable screw structure according to claim 1, characterized in that: The limiting component includes a connecting seat (11), which has multiple fixing blocks (111) inside. Each of the multiple fixing blocks (111) has an elastic arm (112) between it, and each of the multiple elastic arms (112) has a movable groove (113) at its rear end.
3. A connector with a non-removable screw structure according to claim 2, characterized in that: One end of the screw (3) passes through multiple fixing blocks (111) and multiple elastic arms (112) and is locked inside the connecting seat (11). A spring (4) is fitted over the screw (3), and one end of the spring (4) is locked inside the connecting seat (11).
4. A connector with a non-removable screw structure according to claim 1, characterized in that: The limiting component includes a connecting seat (11), a protective sleeve (2) is provided between the connecting seat (11) and the screw (3), a plurality of limiting grooves (21) are provided on the periphery of the protective sleeve (2), and a plurality of limiting blocks (114) are provided on the periphery of the connecting seat (11).
5. A connector with a non-removable screw structure according to claim 4, characterized in that: Multiple limiting blocks (114) are respectively locked in multiple limiting grooves (21), and the top of the screw (3) is provided with a slot (31). The protective sleeve (2) is connected to the screw (3) through the slot (31).
6. A connector with a non-removable screw structure according to claim 5, characterized in that: The screw (3) is fitted with a spring (4), one end of which is locked in the connector (11) and the other end is locked in the protective sleeve (2). The connector (11) has a plastic shell hole (115).
7. A connector with a non-removable screw structure according to claim 1, characterized in that: The front end of the plastic shell (1) is provided with a connecting plate (8), and a connector (81) is attached to the connecting plate (8). The PCBA board (6) passes through the plastic shell (1) and is attached to the connector (81). The front end of the plastic shell (1) is provided with a rubber buckle (12), which is attached to one end of the connector (81). The rear end of the inner mold (5) is provided with an overflow groove (52).