Buffer type prefabricated junction box

Abstract

The invention discloses a buffer type prefabricated junction box, and relates to the technical field of junction boxes, the buffer type prefabricated junction box comprises a box body and a box cover, one end of the box body is open, a wire connector is arranged in the box body, threading holes are formed in two sides of the box body, and the buffer type prefabricated junction box further comprises a buffer mechanism; through the arrangement of the buffer mechanism, when the wire connector is vibrated on the inner side of the box body, the rubber pressing columns in the upper direction and the lower direction of the wire connector are matched with the column-shaped telescopic parts, the wire connector can be effectively and linearly buffered, damage to the wire connector due to vibration is reduced to the minimum, and therefore the service life of the wire connector is effectively prolonged; through the arrangement of the movable strips, the connecting strips and the connecting blocks, when the wire connector is vibrated, the buffer pressing rods in the two sets of columnar telescopic parts can slide in a telescopic mode synchronously with the inner sides of the corresponding telescopic sleeves under the connection effect of the connecting strips and the connecting blocks, synchronous coordination is kept, and therefore the overall contraction efficiency and precision are improved; errors and unstable factors caused by asynchronization are reduced, and the stability and reliability of the system are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of junction boxes, and in particular to a buffer type prefabricated junction box. Background Art

[0002] In home decoration, the junction box is one of the electrical auxiliary materials, because the wires used for decoration pass through the wire tube, and the junction box is used as a transition at the joint of the wires. The wire tube is connected to the junction box, and the wires in the wire tube are connected in the junction box, which plays the role of protecting the wires and connecting the wires. This is the junction box, and the box body of the electrical junction box in the prior art is mostly prefabricated products, so that when the junction box is on site, it only needs to be equipped with a box cover on the box body to use it, avoiding the cumbersome assembly of conventional junction boxes on site;

[0003] The existing prefabricated junction boxes have certain shortcomings in actual life and work applications. At present, the junction boxes are usually equipped with precision components such as terminal blocks and connectors, which are easily damaged when hit or dropped. Summary of the invention

[0004] In order to solve the above technical problems, a buffer type prefabricated junction box is provided, which solves the problem that the prefabricated junction box in the prior art usually has precision components such as terminal blocks and connectors installed inside, which are easily damaged when hit or dropped.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a buffer type prefabricated junction box, comprising a box body with an open end and a box cover detachably mounted on the open end of the box body by screws, the box body has a built-in wiring connector, both sides of the box body are provided with threading holes, and also includes a buffer mechanism for reducing vibration damage to the wiring connector;

[0006] The buffer mechanism includes two columnar telescopic parts symmetrically distributed below the connector and two rubber pressure columns symmetrically fixed to the bottom surface of the box cover. The ends of the rubber pressure columns are in contact with the top surface of the connector, and a coordination part is arranged between the two columnar telescopic parts.

[0007] Preferably, the columnar telescopic part includes a shrinkage sleeve with one end being open and vertically fixed on the inner wall of the bottom end of the box body, and a buffer pressure plate slidably arranged on the inner side of the shrinkage sleeve, a buffer pressure rod is attached to one side of the buffer pressure plate, the end of the buffer pressure rod is fixedly connected to the bottom surface of the connector, and a buffer spring is fixedly connected between the other side of the buffer pressure plate and the innermost inner wall of the shrinkage sleeve.

[0008] Preferably, the cooperative part includes a movable bar which is laterally slidably arranged on the inner wall of the bottom end of the box body and a connecting bar which is slidably arranged above the movable bar, a spring telescopic rod is vertically fixed between the connecting bar and the movable bar, a movable seam is vertically opened on the wall of the shrinkage sleeve, a connecting block which is fixedly connected to the side wall of the connecting bar is slidably arranged in the movable seam, the rod body of the buffer pressure rod is opened with a socket which is adapted to the connecting block, and the end of the connecting block is inserted into the socket.

[0009] Preferably, the coordination part also includes a pressure block slidably arranged in a right-angle trapezoidal shape on the side of the movable bar away from the shrinking sleeve, the pressure block is fixedly connected to the movable bar through a bracket, and a lifting groove is vertically opened on the inner side wall of the box body, and an extrusion piece matching the pressure block is arranged in the lifting groove.

[0010] Preferably, the elastic extrusion member includes an extrusion block slidably arranged at the lower inner side of the lifting groove in a right-angled trapezoidal shape, a positioning seat fixed at the upper inner side of the lifting groove, and a pressure column vertically fixed to the top surface of the lifting groove, the hypotenuse of the extrusion block is in contact with the hypotenuse of the pressure block, and the end of the pressure column passes through the positioning seat and contacts with the bottom surface of the box cover.

[0011] Preferably, a slider is vertically fixed to the bottom surface of the movable bar, a slide groove matching the slider is horizontally opened on the inner wall of the bottom end of the box body, and a compression spring is fixed between the slider and the inner wall of one side of the slide groove.

[0012] Preferably, two track limiting bars are symmetrically fixed on the inner wall of the bottom end of the box body, and the movable bar slides between the two track limiting bars.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) By setting the buffer mechanism, when the connector is vibrated inside the box body, the rubber pressure columns and the column-shaped telescopic parts in the upper and lower directions of the connector cooperate with each other to effectively linearly buffer the connector, thereby minimizing the damage to the connector caused by the vibration, thereby effectively extending the service life of the connector.

[0015] (2) Through the arrangement of the movable strip, the connecting strip and the connecting block, when the connector is vibrated, the buffer pressure rods in the two sets of column-shaped telescopic parts can be connected with the connecting strip and the connecting block to synchronously telescope and slide along the inner side of the corresponding shrinking sleeve to maintain synchronous coordination, thereby improving the overall shrinking efficiency and accuracy, reducing errors and unstable factors caused by asynchrony, and ensuring the stability and reliability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 For the present invention Figure 2 Schematic diagram of the structure at A in the middle;

[0019] Figure 4 This is a schematic diagram of the internal structure of the shrink sleeve of the present invention;

[0020] Figure 5 It is a schematic diagram of the local structure of the cooperation part of the present invention.

[0021] The numbers in the figure are:

[0022] 1. Box body; 2. Box cover; 3. Threading hole; 4. Wire connector; 5. Shrink sleeve; 6. Buffer spring; 7. Buffer pressure plate; 8. Buffer pressure rod; 9. Rubber pressure column; 10. Connecting strip; 11. Connecting block; 12. Movable seam; 13. Movable strip; 14. Track limiter; 15. Spring telescopic rod; 16. Pressure block; 17. Lifting slot; 18. Extrusion block; 19. Pressure column; 20. Positioning seat. DETAILED DESCRIPTION

[0023] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0024] Reference Figure 1-5 As shown, a buffer type prefabricated junction box comprises a box body 1 with an open end and a box cover 1 detachably mounted on the open end of the box body 1 by screws, a wiring connector 4 is built into the box body 1, and wire holes 3 are opened on both sides of the box body 1;

[0025] When in use, the connector 4 is installed in advance inside the box body 1 , and then the cable is passed through the wire threading hole 3 to the inside of the box body 1 , so as to conveniently connect the cable to the connector 4 .

[0026] However, the connector 4 is built into the box body 1 and lacks a certain protective mechanism. The connector 4 is very easy to be damaged due to vibration when the box body 1 falls or is hit, which affects its use effect.

[0027] For this purpose, refer to Figure 2 As shown, it is worth noting that it also includes a buffer mechanism for reducing vibration damage to the connector 4;

[0028] The buffer mechanism includes two column-shaped telescopic parts symmetrically distributed below the connector 4 and two rubber pressure columns 9 symmetrically fixed to the bottom surface of the box cover 1, and the ends of the rubber pressure columns 9 are in contact with the top surface of the connector 4;

[0029] By setting the buffer mechanism, when the connector 4 is vibrated inside the box body 1, the rubber pressure columns 9 and the column-shaped telescopic parts in the upper and lower directions of the connector 4 cooperate with each other to effectively linearly buffer the connector 4, thereby minimizing the damage to the connector 4 caused by the vibration, thereby effectively improving the service life of the connector 4.

[0030] Further, refer to Figure 2 As shown, it is worth noting that the column-shaped telescopic part includes a shrink sleeve 5 with an open end vertically fixed on the inner wall of the bottom end of the box body 1 and a buffer pressure plate 7 slidably arranged inside the shrink sleeve 5, a buffer pressure rod 8 is attached to one side of the buffer pressure plate 7, and the end of the buffer pressure rod 8 is fixedly connected to the bottom surface of the connector 4, and a buffer spring 6 is fixedly connected between the other side of the buffer pressure plate 7 and the innermost inner wall of the shrink sleeve 5;

[0031] When placing the connector 4 to the inside of the box body 1, the operator needs to pay attention to aligning the buffer pressure rod 8 at the bottom of the connector 4 and inserting it into the inside of the shrink sleeve 5, so that the buffer pressure rod 8 squeezes the buffer pressure plate 7 and compresses the buffer spring 6, and uses the elastic force of the buffer spring 6 to support the connector 4 in the air. After the connector 4 is placed, when the box cover 1 is installed to the open end of the box body 1 with screws, the rubber pressure column 9 on the bottom of the box cover 1 is aligned with the top surface of the connector 4, and then the buffer spring 6 cooperates with the rubber pressure column 9, both of which are elastic materials, and can effectively perform linear buffering when the connector 4 vibrates.

[0032] Further, refer to Figure 2 and Figure 5 As shown, it is worth noting that a coordination portion is provided between the two columnar telescopic portions;

[0033] The cooperation part includes a movable bar 13 slidably arranged on the inner wall of the bottom end of the box body 1 and a connecting bar 10 slidably arranged above the movable bar 13. A spring telescopic rod 15 is vertically fixed between the connecting bar 10 and the movable bar 13. A movable seam 12 is vertically opened on the wall of the shrinking sleeve 5. A connecting block 11 fixedly connected to the side wall of the connecting bar 10 is slidably arranged in the movable seam 12. The rod body of the buffer pressure rod 8 is provided with a socket adapted to the connecting block 11, and the end of the connecting block 11 is inserted into the socket;

[0034] By setting the movable bar 13, the connecting bar 10 and the connecting block 11, when the waiting connector 4 is vibrated, the buffer pressure rods 8 in the two sets of column-shaped telescopic parts can be connected with the connecting bar 10 and the connecting block 11, and can be synchronously telescopically slid inside the corresponding shrinking sleeve 5 to maintain synchronization and coordination, thereby improving the overall shrinking efficiency and accuracy, reducing errors and unstable factors caused by asynchrony, and ensuring the stability and reliability of the system;

[0035] Furthermore, the connecting strip 10 can still move up and down simultaneously with the telescopic movement of the buffer pressure rod 8 , compressing or stretching the spring telescopic rod 15 , thereby reducing the obstruction to the telescopic movement of the buffer pressure rod 8 .

[0036] Further, refer to Figure 2-5 As shown, it is worth noting that the coordination part also includes a pressure block 16 slidably arranged in a right-angle trapezoidal shape on the side of the movable bar 13 away from the shrink sleeve 5, the pressure block 16 is fixedly connected to the movable bar 13 through a bracket, and a lifting groove 17 is vertically opened on the inner side wall of the box body 1, and an extrusion piece matching the pressure block 16 is arranged in the lifting groove 17;

[0037] The elastic extrusion member includes an extrusion block 18 slidably disposed at the lower inner side of the lifting groove 17 in a right-angled trapezoidal shape, a positioning seat 20 fixed at the upper inner side of the lifting groove 17, and a pressure column 19 vertically fixed to the top surface of the lifting groove 17. The hypotenuse of the extrusion block 18 fits the hypotenuse of the pressure block 16, and the end of the pressure column 19 passes through the positioning seat 20 and contacts the bottom surface of the box cover 1.

[0038] A slider is vertically fixed to the bottom surface of the movable bar 13, and a slide groove matching the slider is horizontally opened on the inner wall of the bottom end of the box body 1, and a compression spring is fixed between the slider and the inner wall of one side of the slide groove;

[0039] When the box cover 1 is to be installed on the open end of the box body 1, the box cover 1 continuously presses the pressure column 19 and pushes down the extrusion block 18 in the process of sticking to the open end of the box body 1, so that the extrusion block 18 presses the bevel of the pressure block 16, and forms a thrust on the pressure block 16, the movable bar 13, the spring telescopic rod 15 and the connecting bar 10 as a whole, so that after the connector 4 is placed inside the box body 1, the connecting block 11 can be inserted into the socket on the buffer pressure rod 8 through the movable seam 12, thereby achieving the connection effect of the two buffer pressure rods 8;

[0040] During the process of the compressed block 16 being squeezed and sliding, the movable bar 13 can act on the slider to move in the slide groove and stretch the compression spring to deform. In this way, the elastic force of the compression spring is utilized. When the box cover 1 is removed from the open end of the box body 1 and the compression on the pressure column 19 and the compression block 18 is reduced, the slider can carry the movable bar 13 to return to slide under the elastic force of the compression spring, so that the connecting block 11 is withdrawn from the socket on the buffer pressure rod 8, thereby releasing the limiting effect on the buffer pressure rod 8 and facilitating the later disassembly and maintenance of the connector 4.

[0041] Further, refer to Figure 5 As shown, it is worth noting that two track limiting bars 14 are symmetrically fixed on the inner wall of the bottom end of the box body 1, and the movable bar 13 slides between the two track limiting bars 14;

[0042] By providing the two track limiting bars 14 , when the movable bar 13 slides, the two track limiting bars 14 cooperate with each other to effectively limit the moving track of the movable bar 13 , thereby ensuring the stability of the movable bar 13 when it moves.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A buffer type prefabricated junction box, comprising a box body (1) with an open end and a box cover (1) detachably mounted on the open end of the box body (1) by screws, the box body (1) having a built-in wiring connector (4), and both sides of the box body (1) are provided with threading holes (3), characterized in that: It also includes a buffer mechanism for reducing damage to the connector (4) caused by vibration; The buffer mechanism comprises two columnar telescopic parts symmetrically distributed below the connector (4) and two rubber pressure columns (9) symmetrically fixed to the bottom surface of the box cover (1), the ends of the rubber pressure columns (9) are in contact with the top surface of the connector (4), and a coordination part is provided between the two columnar telescopic parts.

2. A buffer type prefabricated junction box according to claim 1, characterized in that: The columnar telescopic part comprises a shrinking sleeve (5) with one end being open and vertically fixed on the inner wall of the bottom end of the box body (1) and a buffer pressure plate (7) slidably arranged on the inner side of the shrinking sleeve (5); a buffer pressure rod (8) is attached to one side of the buffer pressure plate (7); the end of the buffer pressure rod (8) is fixedly connected to the bottom surface of the connector (4); and a buffer spring (6) is fixedly connected between the other side of the buffer pressure plate (7) and the innermost inner wall of the shrinking sleeve (5).

3. A buffer type prefabricated junction box according to claim 2, characterized in that: The cooperative part comprises a movable bar (13) slidably arranged on the inner wall of the bottom end of the box body (1) and a connecting bar (10) slidably arranged above the movable bar (13); a spring telescopic rod (15) is vertically fixed between the connecting bar (10) and the movable bar (13); a movable slit (12) is vertically opened on the wall of the shrink sleeve (5); a connecting block (11) fixedly connected to the side wall of the connecting bar (10) is slidably arranged in the movable slit (12); a socket matched with the connecting block (11) is opened on the rod body of the buffer pressure rod (8); the end of the connecting block (11) is inserted into the socket.

4. A buffer type prefabricated junction box according to claim 3, characterized in that: The coordination part also includes a pressure block (16) slidably arranged in a right-angle trapezoidal shape on the side of the movable bar (13) away from the shrinking sleeve (5), and the pressure block (16) is fixedly connected to the movable bar (13) through a bracket. A lifting groove (17) is vertically opened on the inner side wall of the box body (1), and an extrusion piece matching the pressure block (16) is arranged in the lifting groove (17).

5. A buffer type prefabricated junction box according to claim 4, characterized in that: The elastic extrusion member comprises an extrusion block (18) slidably arranged at the lower inner side of the lifting groove (17) in a right-angled trapezoidal shape, a positioning seat (20) fixed at the upper inner side of the lifting groove (17), and a pressure column (19) vertically fixed to the top surface of the lifting groove (17), the oblique side of the extrusion block (18) is in contact with the oblique side of the pressure block (16), and the end of the pressure column (19) passes through the positioning seat (20) and contacts the bottom surface of the box cover (1).

6. A buffer type prefabricated junction box according to claim 4, characterized in that: A slider is vertically fixed to the bottom surface of the movable bar (13), a slide groove matching the slider is horizontally opened on the inner wall of the bottom end of the box body (1), and a compression spring is fixed between the slider and the inner wall of one side of the slide groove.

7. The buffer type prefabricated junction box according to claim 3, characterized in that: Two track limiting bars (14) are symmetrically fixed on the inner wall of the bottom end of the box body (1), and the movable bar (13) slides between the two track limiting bars (14).

Images