Drawing board supporting underframe locking mechanism

Abstract

The utility model relates to the technical field of drawing board locking mechanisms, in particular to a drawing board supporting bottom frame locking mechanism which comprises two edge strips, the two edge strips are arranged in parallel, the opposite sides of the two edge strips are respectively provided with a longitudinally-extending installation groove, and a toothed plate is fixedly embedded in each installation groove. A lower cross brace is detachably connected between the bottom ends of the two edge strips; an upper cross brace is detachably connected between the top ends of the two edge strips; a supporting plate is erected between the lower cross arm and the upper cross arm; the outer wall of the supporting plate is rotationally connected with a rear supporting rod. According to the device, under the elastic force action of the first spring, the clamping rod is clamped on the toothed plate to support the two ends of the lower baffle, and the supporting stability of the lower baffle is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of drawing board locking mechanisms, and more specifically, to a drawing board support base locking mechanism. Background Technology

[0002] The drawing board support base locking mechanism is mainly used to fix the lower baffle, which supports the bottom of the drawing board, in a suitable position to prevent the drawing board from shaking or tilting due to external forces or its own weight during the painting process, thereby affecting the painting effect.

[0003] In the prior art, the lower baffle used to support the bottom of the drawing board is usually slidably mounted on the drawing board frame and fixed by adjusting the handwheel. Then, the skateboard is placed on the lower baffle for painting. However, the adjusting handwheel can only lock the middle of the lower baffle, while the two ends of the lower baffle can still move under pressure. This results in the lower baffle not supporting the skateboard stably, which affects the painting work. Utility Model Content

[0004] Based on the aforementioned technical problem that the adjustment handwheel can only lock the middle of the lower baffle, while the two ends of the lower baffle are still movable under compression, resulting in unstable support of the lower baffle for the skateboard and affecting the painting work, this utility model proposes a drawing board support base locking mechanism.

[0005] This utility model proposes a drawing board support base locking mechanism, which includes:

[0006] Two side strips are arranged in parallel. Each of the two side strips has a longitudinally extending mounting groove on its opposite side, and a toothed plate is fixedly embedded in each mounting groove. A lower cross brace is detachably connected between the bottom ends of the two side strips. An upper cross brace is detachably connected between the top ends of the two side strips. A support plate is erected between the lower cross brace and the upper cross brace. A rear support rod is rotatably connected to the outer wall of the support plate.

[0007] A tray assembly includes a lower baffle, the top of which has a through hole for a support plate to pass through, the support plate being slidably engaged with the through hole; symmetrical sliding grooves are provided on both sides of the lower baffle, and each sliding groove has a first sliding hole on its inner wall;

[0008] Each slide groove has a first slide rod fixed horizontally inside; a slide frame is slidably sleeved on the first slide rod, and the extended end of the slide frame passes through the first slide hole and is slidably connected to it;

[0009] A locking rod is fixed to the outside of the slide, and the end of the locking rod is provided with an inclined surface that meshes with the toothed plate; a first spring is sleeved on the first slide rod, and a lever is fixed to the through end of the slide.

[0010] Preferably, one end of the first spring is fixedly connected to the slide, and the other end of the first spring is fixedly connected to the lower baffle.

[0011] Preferably, each of the outer walls of the edge strip has two slots, and the two ends of the lower cross brace are respectively inserted into the slots located on the lower part of the edge strip. The outer walls of the lower cross brace and the upper cross brace are threaded with multiple adjusting screws, and the ends of the adjusting screws located on both sides are respectively threaded to the edge strip and the lower cross brace.

[0012] Preferably, the two ends of the upper cross brace are respectively inserted into the slots on the upper part of the side strip, and the ends of the adjusting screws on both sides are respectively threaded to the side strip and the upper cross brace.

[0013] Preferably, the adjusting screw located in the middle of the lower cross brace is threadedly connected to the support plate, and the adjusting screw located in the middle of the upper cross brace is threadedly connected to the support plate.

[0014] Preferably, it further includes an upper baffle, the outer wall of which is provided with a second sliding hole, and the support plate passes through the second sliding hole and is slidably connected to it.

[0015] Preferably, multiple adjustment slots are provided on both sides of the support plate, two brackets are fixedly connected to the bottom of the upper baffle, a fixing plate is fixedly connected to the inner wall of each bracket, a second slide rod is slidably connected to the inner wall of the fixing plate, a locking plate is fixedly connected to the end of the second slide rod, a second spring is sleeved on the outer wall of the second slide rod, and the locking plate engages with the adjustment slot.

[0016] Preferably, one end of the second spring is fixedly connected to the clamping plate, and the other end of the second spring is fixedly connected to the fixing plate.

[0017] Preferably, a rotating shaft is fixedly connected to the inner wall of the bracket, and a pressure plate is rotatably connected to the outer circumference of the rotating shaft, with the end of the pressure plate contacting the inner wall of the card plate.

[0018] The beneficial effects of this utility model, achieved through the above technical solution, are as follows:

[0019] 1. Under the elastic force of the first spring, the locking rod is locked onto the toothed plate, supporting both ends of the lower baffle and improving the stability of the lower baffle.

[0020] 2. By inserting the slots on the edge strip into the ends of the lower and upper cross braces respectively, and locking the lower and upper cross braces onto the edge strip by adjusting the screws, the lower and upper baffles are placed on the support plate, and the support plate is locked onto the lower and upper cross braces by adjusting the screws. This design facilitates the assembly and disassembly of the drawing board frame, and makes it easy to transport and carry the drawing board frame.

[0021] 3. By pressing the pressure plate simultaneously, the end of the pressure plate is squeezed outward against the clamping plate. The pressure plate drives the second slide rod to slide along the inner wall of the fixed plate and compresses the second spring, causing the clamping plate to disengage from the adjustment groove. This allows the upper baffle to slide for height adjustment. After adjustment, the clamping plate can be locked in the adjustment groove under the elastic force of the second spring. This design facilitates the adjustment of the position of the upper baffle. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a partial disassembled structural diagram of the present invention;

[0024] Figure 3 This is a schematic diagram of the installation structure of the slide of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the lower baffle of this utility model;

[0026] Figure 5 This is a schematic diagram of the installation structure of the clamp rod of this utility model;

[0027] Figure 6 This is a schematic diagram of the installation structure of the clamp rod of this utility model;

[0028] Figure 7 This is a schematic diagram of the structure of the upper baffle of this utility model;

[0029] Figure 8 This is a schematic diagram of the installation structure of the card plate of this utility model.

[0030] In the diagram: 1. Edge strip; 2. Mounting groove; 3. Slot; 4. Toothed plate; 5. Lower cross brace; 6. Upper cross brace; 7. Adjusting screw; 8. Support plate; 9. Adjusting groove; 10. Rear support rod; 11. Lower baffle; 12. Through hole; 13. Slide groove; 14. Slide frame; 15. First sliding hole; 16. First slide rod; 17. First spring; 18. Locking rod; 19. Inclined surface; 20. Toggle block; 21. Upper baffle; 22. Second sliding hole; 23. Bracket; 24. Rotating shaft; 25. Pressure plate; 26. Locking plate; 27. Second slide rod; 28. Second spring; 29. ​​Fixing plate. Detailed Implementation

[0031] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model. In this utility model, unless otherwise expressly specified and limited, the term "fixed connection" should be interpreted broadly. For example, "fixed connection" can mean fixed installation, detachable connection, or integral; it can mean mechanical connection or electrical connection; it can mean direct connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] like Figures 1-6 As shown, a drawing board support base locking mechanism includes two parallel side strips 1, longitudinally extending mounting grooves 2 respectively opened on opposite sides of the two side strips 1, toothed plates 4 fixedly embedded in each mounting groove 2, a lower cross brace 5 detachably connected between the bottom ends of the two side strips 1, an upper cross brace 6 detachably connected between the top ends of the two side strips 1, a support plate 8 erected between the lower cross brace 5 and the upper cross brace 6, a rear support rod 10 rotatably connected to the outer wall of the support plate 8, and a support plate assembly.

[0033] The pallet assembly includes a lower baffle 11, symmetrically opened grooves 13 on both sides of the lower baffle 11, a first slide rod 16 horizontally fixed in each groove 13, a slide frame 14 slidably sleeved on the first slide rod 16, a locking rod 18 fixed on the outside of the slide frame 14, a first spring 17 sleeved on the first slide rod 16, and a lever 20 fixed to the through end of the slide frame 14.

[0034] The lower baffle 11 has a through hole 12 at its top for the support plate 8 to pass through. The support plate 8 is slidably engaged with the through hole 12. The inner wall of the slide groove 13 is provided with a first sliding hole 15. The extension end of the slide frame 14 passes through the first sliding hole 15 and is slidably connected to it. The end of the latch 18 is provided with an inclined surface 19 that meshes with the toothed plate 4. One end of the first spring 17 is fixedly connected to the slide frame 14, and the other end of the first spring 17 is fixedly connected to the lower baffle 11.

[0035] Under the elastic force of the first spring 17, the locking rod 18 is locked onto the toothed plate 4, supporting both ends of the lower baffle 11 and improving the stability of the lower baffle 11.

[0036] like Figure 3 As shown, in this embodiment, two slots 3 are provided on the outer wall of the side strip 1. The two ends of the lower cross brace 5 are respectively inserted into the slots 3 located at the bottom of the side strip 1. Multiple adjusting screws 7 are threadedly connected to the outer walls of the lower cross brace 5 and the upper cross brace 6. The ends of the adjusting screws 7 located on both sides are respectively threadedly connected to the side strip 1 and the lower cross brace 5. In this embodiment, the two ends of the upper cross brace 6 are respectively inserted into the slots 3 located at the top of the side strip 1. The ends of the adjusting screws 7 located on both sides are respectively threadedly connected to the side strip 1 and the upper cross brace 6.

[0037] The adjusting screw 7 located in the middle of the lower cross brace 5 is threadedly connected to the support plate 8, and the adjusting screw 7 located in the middle of the upper cross brace 6 is threadedly connected to the support plate 8.

[0038] By inserting the slots 3 on the edge strip 1 into the two ends of the lower cross brace 5 and the upper cross brace 6 respectively, and locking the lower cross brace 5 and the upper cross brace 6 onto the edge strip 1 by adjusting the screw 7, the lower baffle 11 and the upper baffle 21 are put onto the support plate 8, and the support plate 8 is locked onto the lower cross brace 5 and the upper cross brace 6 by adjusting the screw 7. This design facilitates the assembly and disassembly of the drawing board frame, and makes it convenient for the transportation and carrying of the drawing board frame.

[0039] like Figure 7 and Figure 8 As shown, in this embodiment, an upper baffle 21 is also included. A second sliding hole 22 is provided on the outer wall of the upper baffle 21. A support plate 8 passes through the second sliding hole 22 and is slidably connected to it. Multiple adjustment slots 9 are provided on both sides of the support plate 8. Two brackets 23 are fixedly connected to the bottom of the upper baffle 21. A fixing plate 29 is fixedly connected to the inner wall of each bracket 23. A second sliding rod 27 is slidably connected to the inner wall of the fixing plate 29. A locking plate 26 is fixedly connected to the end of the second sliding rod 27. A second spring 28 is sleeved on the outer wall of the second sliding rod 27. The locking plate 26 engages with the adjustment slot 9. One end of the second spring 28 is fixedly connected to the locking plate 26, and the other end of the second spring 28 is fixedly connected to the fixing plate 29. A rotating shaft 24 is fixedly connected to the inner wall of the bracket 23. A pressure plate 25 is rotatably connected to the outer circumference of the rotating shaft 24. The end of the pressure plate 25 contacts the inner wall of the locking plate 26.

[0040] The above structure allows for easy adjustment of the positions of the lower baffle 11 and the upper baffle 21 to accommodate different drawing boards with varying installation heights and sizes.

[0041] Working principle: By inserting the slots 3 on the side strip 1 into the two ends of the lower cross brace 5 and the upper cross brace 6 respectively, the lower cross brace 5 and the upper cross brace 6 are locked onto the side strip 1 by adjusting the screw 7. The lower baffle 11 and the upper baffle 21 are put onto the support plate 8, and the support plate 8 is locked onto the lower cross brace 5 and the upper cross brace 6 by adjusting the screw 7.

[0042] Place the bottom of the drawing board on the lower baffle 11, and clamp the drawing board with the lower baffle 11 and the upper baffle 21 to fix the drawing board.

[0043] When the position of the upper baffle 21 needs to be adjusted, the pressure plate 25 is pressed at the same time, causing the end of the pressure plate 25 to squeeze the clamping plate 26 outward. The pressure plate 25 drives the second slide rod 27 to slide along the inner wall of the fixed plate 29 and compresses the second spring 28, causing the clamping plate 26 to disengage from the adjustment groove 9. This allows the upper baffle 21 to slide for height adjustment. After adjustment, under the elastic force of the second spring 28, the clamping plate 26 can be locked in the adjustment groove 9.

[0044] When the height of the lower baffle 11 needs to be adjusted upward, the lower baffle 11 is lifted upward. At this time, the inclined surface 19 on the locking rod 18 is pressed along the toothed plate 4, and the slide 14 can slide along the first slide rod 16 and press the first spring 17, so that the end of the locking rod 18 is disengaged from the toothed plate 4, and the lower baffle 11 is quickly adjusted upward.

[0045] When the height of the lower baffle 11 needs to be adjusted downwards, the slide 14 is driven to slide along the first slide rod 16 by pressing the lever 20 at the same time. When the slide 14 moves, it squeezes the first spring 17. At this time, the locking rods 18 on the two slides 14 disengage from the toothed plate 4, thereby adjusting the height of the lower baffle 11. After adjustment, the lever 20 is released. Under the elastic force of the first spring 17, the locking rods 18 are locked on the toothed plate 4, supporting both ends of the lower baffle 11 and improving the stability of the lower baffle 11.

[0046] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A drawing board support base locking mechanism, characterized in that, include: Two side strips (1) are arranged in parallel. The two side strips (1) are respectively provided with longitudinally extending mounting grooves (2) on opposite sides. A toothed plate (4) is fixedly embedded in each mounting groove (2). A lower cross brace (5) is detachably connected between the bottom ends of the two side strips (1). An upper cross brace (6) is detachably connected between the top ends of the two side strips (1). A support plate (8) is provided between the lower cross brace (5) and the upper cross brace (6). A rear support rod (10) is rotatably connected to the outer wall of the support plate (8). A tray assembly includes a lower baffle (11), the top of which has a through hole (12) for the support plate (8) to pass through, the support plate (8) and the through hole (12) being slidably engaged; the two side walls of the lower baffle (11) are symmetrically provided with sliding grooves (13), and the inner walls of the sliding grooves (13) are each provided with a first sliding hole (15). Each slide groove (13) has a first slide rod (16) fixed horizontally inside; a slide frame (14) is slidably sleeved on the first slide rod (16), and the extended end of the slide frame (14) passes through the first slide hole (15) and is slidably connected to it; A locking rod (18) is fixed on the outside of the slide (14), and the end of the locking rod (18) is provided with an inclined surface (19) that meshes with the toothed plate (4); a first spring (17) is sleeved on the first slide rod (16), and a lever (20) is fixed at the through end of the slide (14).

2. The drawing board support frame locking mechanism according to claim 1, characterized in that: One end of the first spring (17) is fixedly connected to the slide (14), and the other end of the first spring (17) is fixedly connected to the lower baffle (11).

3. The drawing board support frame locking mechanism according to claim 2, characterized in that: Two slots (3) are provided on the outer wall of the edge strip (1). The two ends of the lower cross brace (5) are respectively inserted into the slots (3) located on the lower part of the edge strip (1). Multiple adjusting screws (7) are threadedly connected to the outer walls of the lower cross brace (5) and the upper cross brace (6). The ends of the adjusting screws (7) located on both sides are respectively threadedly connected to the edge strip (1) and the lower cross brace (5).

4. The drawing board support frame locking mechanism according to claim 3, characterized in that: The two ends of the upper cross brace (6) are respectively inserted into the slots (3) on the upper part of the side strip (1), and the ends of the adjusting screws (7) on both sides are respectively threaded to the side strip (1) and the upper cross brace (6).

5. The drawing board support frame locking mechanism according to claim 4, characterized in that: The adjusting screw (7) located in the middle of the lower cross brace (5) is threadedly connected to the support plate (8), and the adjusting screw (7) located in the middle of the upper cross brace (6) is threadedly connected to the support plate (8).

6. The drawing board support frame locking mechanism according to claim 5, characterized in that: It also includes an upper baffle (21), the outer wall of which is provided with a second sliding hole (22), and the support plate (8) passes through the second sliding hole (22) and is slidably connected to it.

7. The drawing board support frame locking mechanism according to claim 6, characterized in that: Multiple adjustment slots (9) are provided on both sides of the support plate (8). Two brackets (23) are fixedly connected to the bottom of the upper baffle (21). A fixing plate (29) is fixedly connected to the inner wall of each bracket (23). A second slide rod (27) is slidably connected to the inner wall of the fixing plate (29). A locking plate (26) is fixedly connected to the end of the second slide rod (27). A second spring (28) is sleeved on the outer wall of the second slide rod (27). The locking plate (26) engages with the adjustment slot (9).

8. The drawing board support frame locking mechanism according to claim 7, characterized in that: One end of the second spring (28) is fixedly connected to the card plate (26), and the other end of the second spring (28) is fixedly connected to the fixing plate (29).

9. The drawing board support frame locking mechanism according to claim 8, characterized in that: The bracket (23) has a rotating shaft (24) fixedly connected to its inner wall. The rotating shaft (24) has a pressure plate (25) rotatably connected to its outer circumference. The end of the pressure plate (25) contacts the inner wall of the clamping plate (26).

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