Workbench plate self-locking and telescopic structure

Abstract

The utility model relates to the technical field of workbenches, and discloses a workbench plate self-locking and telescopic structure which comprises a supporting shell and a connecting plate, a lifting assembly is arranged in the supporting shell, the bottom of the connecting plate is arranged at the top of the lifting assembly, and the outer surface of the connecting plate is movably connected to the inner wall of the supporting shell. Two fixing plates are fixedly mounted at the top of the supporting shell, circular grooves are formed in the side faces of the fixing plates, clamping assemblies are arranged in the circular grooves, square blocks are movably connected to the inner walls of the second square groove and the first square groove, the side faces of the square blocks are arranged on the side faces of the clamping assemblies, and side plates are fixedly mounted on the side faces of the connecting plates. The connecting plate is driven by the lifting assembly arranged in the supporting shell to move, so that the top of the connecting plate and the top of the moving plate reach a stable horizontal plane, and the connecting plate and the moving plate can be moved to the same position. The use safety is high; and meanwhile, the cleaning is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of workbenches, in particular to a self-locking and telescopic structure of a workbench plate. Background Art

[0002] The self-locking and telescopic structure of the workbench is a common design in modern industrial production. It is mainly used in various workbenches, operating tables, assembly tables and other occasions to improve work efficiency and operational convenience. The design concept of this structure is to realize the locking and telescopic functions of the workbench through mechanical or electronic means to meet different work needs.

[0003] The existing self-locking and telescopic structure of the work table may have some gaps and protruding parts when the work table is extended and retracted. The gaps and protruding plates may cause the operator to accidentally trip or be injured during use, increasing the safety risk in the workplace. The gaps and protruding plates are prone to accumulate dust and dirt and are difficult to clean, which may affect the sanitary conditions of the working environment. The protruding plates may hinder the normal work of the operator and affect work efficiency and comfort. Utility Model Content

[0004] The purpose of the present invention is to provide a self-locking and telescopic structure for a workbench in order to solve the above problems. By setting a first square groove and a second square groove on the side of the movable plate and using the square grooves to connect back and forth to the interior thereof, the problems mentioned in the background technology are solved.

[0005] In order to solve the above problems, the present invention provides a technical solution:

[0006] A self-locking and telescopic structure of a workbench, comprising a support shell and a connecting plate, a lifting assembly is provided inside the support shell, the bottom of the connecting plate is provided on the top of the lifting assembly, the outer surface of the connecting plate is movably connected to the inner wall of the support shell, two fixed plates are fixedly installed on the top of the support shell, the interiors of the two fixed plates are movably connected to a movable plate, sliding rods are fixedly installed on both sides of the two movable plates, two sliding grooves are provided on both sides of the inner walls of the two fixed plates, and the outer surfaces of the four sliding rods are movably connected to the inner walls of the corresponding sliding grooves;

[0007] A first square groove is provided on the side of the movable plate, a second square groove is provided on the side of the movable plate close to the first square groove, a circular groove is provided on the side of the fixed plate, a locking assembly is provided inside the circular groove, a square block is movably connected to the inner wall of the second square groove and the first square groove, the side of the square block is provided on the side of the locking assembly, a side plate is fixedly installed on the side of the connecting plate, a connecting groove is provided on the side of the movable plate close to the connecting plate, and the outer surface of the side plate is movably connected to the inner wall of the connecting groove.

[0008] As a preferred solution of the present invention, the locking assembly includes a moving rod, one end of the moving rod is fixedly mounted on the side of the square block, the outer surface of the moving rod is movably connected to the inner wall of the circular groove, the end of the moving rod away from the square block is fixedly mounted with a pull disk, the outer surface of the moving rod is movably sleeved with a tension spring, and the two ends of the tension spring are respectively fixedly mounted on the side of the fixed plate and one end of the pull disk.

[0009] As a preferred solution of the present invention, the lifting assembly includes a base plate, the bottom of the base plate is fixedly mounted on the bottom of the inner wall of the support shell, the top of the base plate is fixedly mounted with a cylinder, the output end of the cylinder is fixedly mounted with an output rod, and the end of the output rod away from the cylinder is fixedly mounted with a first rack.

[0010] As a preferred solution of the present invention, a straight plate is fixedly installed on the inner bottom of the support shell, and a shaft is rotatably connected to the inside of the straight plate. A driven wheel is fixedly installed on one end of the shaft, and a transmission wheel is fixedly installed on the end of the shaft away from the driven wheel, and the tooth surface of the transmission wheel is engaged with the tooth surface of the first rack.

[0011] As a preferred solution of the present invention, a sleeve rod is fixedly installed on the bottom of the inner wall of the support shell, a straight groove is provided on the outer surface of the sleeve rod, a lifting rod is movably connected to the inner wall of the sleeve rod, a second rack is fixedly installed on the outer surface of the lifting rod, the outer surface of the second rack is movably connected to the inside of the straight groove, the tooth surface of the second rack is engaged with the tooth surface of the driven wheel, and the top end of the lifting rod is fixedly installed on the bottom of the connecting plate.

[0012] As a preferred solution of the present invention, a groove is formed on the bottom of the side of the movable plate away from the connecting plate.

[0013] The beneficial effect of the present invention is that the connecting plate is driven to move by the lifting assembly arranged inside the supporting shell, and the side panels installed on the side of the connecting plate are connected to the connecting grooves opened on the side of the movable plate. The side panels are tightly fitted inside the connecting grooves, thereby reducing the generation of gaps. At the same time, the square blocks arranged inside the first square groove and the second square groove can be stably engaged with the non-retractable platform and the retractable platform respectively. For this reason, the top of the connecting plate and the top of the movable plate reach a stable horizontal plane, thereby increasing the safety of use and making it more convenient to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] For ease of explanation, the present invention is described in detail with reference to the following specific implementations and accompanying drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0017] Figure 3 This is a structural diagram of the movable plate, fixed plate and slide rod of the utility model;

[0018] Figure 4 This is a schematic diagram of the exploded structure of the movable plate, fixed plate and engaging assembly of the utility model;

[0019] Figure 5 It is a structural diagram of the lifting assembly of the utility model.

[0020] In the figure: 1. Support shell; 2. Moving plate; 3. Connecting plate; 4. Fixed plate; 5. Engaging assembly; 51. Pull plate; 52. Moving rod; 53. Tension spring; 6. Slide groove; 7. Slide rod; 8. First square groove; 9. Lifting assembly; 91. Cylinder; 92. Bottom plate; 93. Output rod; 94. First rack; 95. Straight plate; 96. Shaft rod; 97. Driven wheel; 98. Second rack; 99. Straight groove; 910. Lifting rod; 911. Sleeve rod; 912. Transmission wheel; 10. Groove; 11. Connecting groove; 12. Side plate; 13. Square block; 14. Second square groove; 15. Circular groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] Example

[0023] See also Figure 1-Figure 5 The utility model provides a technical solution: a self-locking and telescopic structure of a workbench, including a support shell 1 and a connecting plate 3. A lifting assembly 9 is provided inside the support shell 1. The bottom of the connecting plate 3 is provided at the top of the lifting assembly 9. The outer surface of the connecting plate 3 is movably connected to the inner wall of the support shell 1. Two fixed plates 4 are fixedly installed on the top of the support shell 1. The interiors of the two fixed plates 4 are movably connected to the movable plates 2. Slide rods 7 are fixedly installed on both sides of the two movable plates 2. Two slide grooves 6 are provided on both sides of the inner walls of the two fixed plates 4. The outer surfaces of the four slide rods 7 are movably connected to the inner walls of the corresponding slide grooves 6 respectively.

[0024] A first square groove 8 is provided on the side of the movable plate 2, a second square groove 14 is provided on the side of the movable plate 2 close to the first square groove 8, a circular groove 15 is provided on the side of the fixed plate 4, a locking assembly 5 is provided inside the circular groove 15, the second square groove 14 and the inner wall of the first square groove 8 are movably connected with a square block 13, the side of the square block 13 is provided on the side of the locking assembly 5, a side plate 12 is fixedly installed on the side of the connecting plate 3, a connecting groove 11 is provided on the side of the movable plate 2 close to the connecting plate 3, and the outer surface of the side plate 12 is movably connected to the inner wall of the connecting groove 11.

[0025] Furthermore, the locking assembly 5 includes a moving rod 52, one end of which is fixedly mounted on the side of the square block 13, the outer surface of the moving rod 52 is movably connected to the inner wall of the circular groove 15, and the end of the moving rod 52 away from the square block 13 is fixedly mounted with a pull disk 51, and the outer surface of the moving rod 52 is movably sleeved with a tension spring 53, and the two ends of the tension spring 53 are respectively fixedly mounted on the side of the fixed plate 4 and one end of the pull disk 51. The arranged tension spring 53 can reset the square block 13 and the moving rod 52.

[0026] Furthermore, the lifting assembly 9 includes a base plate 92, the bottom of the base plate 92 is fixedly mounted on the bottom of the inner wall of the support shell 1, and a cylinder 91 is fixedly mounted on the top of the base plate 92. An output rod 93 is fixedly mounted on the output end of the cylinder 91, and a first rack 94 is fixedly mounted on the end of the output rod 93 away from the cylinder 91. The cylinder 91 can drive the first rack 94 set on the output rod 93 to move, and the first rack 94 drives the transmission wheel 912 engaged on the outer surface to rotate.

[0027] Furthermore, a straight plate 95 is fixedly installed on the inner bottom of the support shell 1, and a shaft 96 is rotatably connected inside the straight plate 95. A driven wheel 97 is fixedly installed on one end of the shaft 96, and a transmission wheel 912 is fixedly installed on the end of the shaft 96 away from the driven wheel 97. The tooth surface of the transmission wheel 912 is meshed with the tooth surface of the first rack 94. The meshing first rack 94 and the transmission wheel 912, the transmission wheel 912 can drive the shaft 96 to rotate, and the shaft 96 drives the driven wheel 97 installed at one end to rotate.

[0028] Furthermore, a sleeve rod 911 is fixedly installed on the bottom of the inner wall of the support shell 1, and a straight groove 99 is provided on the outer surface of the sleeve rod 911. A lifting rod 910 is movably connected to the inner wall of the sleeve rod 911, and a second rack 98 is fixedly installed on the outer surface of the lifting rod 910. The outer surface of the second rack 98 is movably connected to the inside of the straight groove 99. The tooth surface of the second rack 98 is engaged with the tooth surface of the driven wheel 97. The top of the lifting rod 910 is fixedly installed on the bottom of the connecting plate 3. Therefore, when the driven wheel 97 rotates, it can drive the second rack 98 engaged on the outer surface to rise and fall. For this reason, the second rack 98 can drive the lifting rod 910 installed on the side to move, and the lifting rod 910 can drive the connecting plate 3 set at the top to move.

[0029] Furthermore, a groove 10 is formed at the bottom of the side of the movable plate 2 away from the connecting plate 3 , and the movable plate 2 can be moved by pulling the groove 10 by hand.

[0030] In summary: when using this device, when it is necessary to extend or retract the movable plate 2, the cylinder 91 is started to drive the output rod 93 installed at the output end to move, the output rod 93 drives the first rack 94 fixed at one end to move, the first rack 94 drives the transmission wheel 912 with the tooth surface meshing to rotate, the transmission wheel 912 drives the shaft 96 fixed at one end to rotate, the shaft 96 drives the driven wheel 97 fixed at one end to rotate, the driven wheel 97 drives the second rack 98 meshing on the outer surface to rise and fall, the second rack 98 drives the lifting rod 910 installed on the side to slide inside the sleeve rod 911, the lifting rod 910 drives the connecting plate 3 installed at the top to rise and fall, and then simultaneously pulls the groove 10 to drive the movable plate 2 to move inside the two fixed plates 4, the fixed plate 4 The sliding rod 7 installed on the side is driven to slide inside the sliding groove 6 opened on the side of the fixed plate 4, and at the same time, the pull plate 51 is pulled to drive the moving rod 52 installed at one end to move inside the circular groove 15, and the moving rod 52 drives the square block 13 installed at one end from the inside of the first square groove 8 to the inside of the circular groove 15. When the second square groove 14 opened on the side of the movable plate 2 moves to the circular groove 15, the pull plate 51 is released, and the tension spring 53 resets and drives the pull plate 51 installed at one end to reset. The pull plate 51 drives the moving rod 52 to move, and the moving rod 52 drives the square block 13 installed at one end from the inner wall of the circular groove 15 to the inner wall of the second square groove 14. At this time, the side plates 12 set on both sides of the connecting plate 3 are connected to the connecting groove 11 opened on the side of the movable plate 2, thereby completing the work and self-locking functions.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A workbench self-locking and telescopic structure, comprising a support shell (1) and a connecting plate (3), characterized in that: A lifting assembly (9) is provided inside the support shell (1), the bottom of the connecting plate (3) is provided on the top of the lifting assembly (9), the outer surface of the connecting plate (3) is movably connected to the inner wall of the support shell (1), two fixed plates (4) are fixedly installed on the top of the support shell (1), the interiors of the two fixed plates (4) are movably connected to the movable plates (2), both sides of the two movable plates (2) are fixedly installed with sliding rods (7), both sides of the inner walls of the two fixed plates (4) are provided with two sliding grooves (6), and the outer surfaces of the four sliding rods (7) are movably connected to the inner walls of the corresponding sliding grooves (6); A first square groove (8) is provided on the side of the movable plate (2), a second square groove (14) is provided on the side of the movable plate (2) close to the first square groove (8), a circular groove (15) is provided on the side of the fixed plate (4), a locking assembly (5) is provided inside the circular groove (15), a square block (13) is movably connected to the inner wall of the second square groove (14) and the first square groove (8), the side of the square block (13) is provided on the side of the locking assembly (5), a side plate (12) is fixedly installed on the side of the connecting plate (3), a connecting groove (11) is provided on the side of the movable plate (2) close to the connecting plate (3), and the outer surface of the side plate (12) is movably connected to the inner wall of the connecting groove (11).

2. A self-locking and telescopic structure for a workbench according to claim 1, characterized in that: The engaging assembly (5) includes a moving rod (52), one end of which is fixedly mounted on the side of the square block (13), the outer surface of which is movably connected to the inner wall of the circular groove (15), the end of which away from the square block (13) is fixedly mounted with a pull disc (51), the outer surface of which is movably sleeved with a tension spring (53), the two ends of which are respectively fixedly mounted on the side of the fixed plate (4) and one end of the pull disc (51).

3. The self-locking and telescopic structure of a workbench according to claim 1, characterized in that: The lifting assembly (9) comprises a base plate (92), the bottom of the base plate (92) being fixedly mounted on the bottom of the inner wall of the support shell (1), a cylinder (91) being fixedly mounted on the top of the base plate (92), an output rod (93) being fixedly mounted on the output end of the cylinder (91), and a first rack (94) being fixedly mounted on the end of the output rod (93) away from the cylinder (91).

4. A self-locking and telescopic structure for a workbench according to claim 3, characterized in that: A straight plate (95) is fixedly mounted on the inner bottom of the support shell (1); a shaft (96) is rotatably connected to the inner portion of the straight plate (95); a driven wheel (97) is fixedly mounted on one end of the shaft (96); a transmission wheel (912) is fixedly mounted on one end of the shaft (96) away from the driven wheel (97); a tooth surface of the transmission wheel (912) meshes with a tooth surface of the first rack (94).

5. The self-locking and telescopic structure of a workbench according to claim 4, characterized in that: A sleeve rod (911) is fixedly mounted on the bottom of the inner wall of the support shell (1), a straight groove (99) is provided on the outer surface of the sleeve rod (911), a lifting rod (910) is movably connected to the inner wall of the sleeve rod (911), a second rack (98) is fixedly mounted on the outer surface of the lifting rod (910), the outer surface of the second rack (98) is movably connected to the inside of the straight groove (99), the tooth surface of the second rack (98) is meshed with the tooth surface of the driven wheel (97), and the top end of the lifting rod (910) is fixedly mounted on the bottom of the connecting plate (3).

6. The self-locking and telescopic structure of a workbench according to claim 1, characterized in that: A groove (10) is formed on the bottom of the side of the movable plate (2) away from the connecting plate (3).

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