Four-side synchronous stretching clamping support

Abstract

The utility model provides a four-side synchronous stretching clamping support which comprises an upper supporting base plate, a lower supporting base plate and two sets of synchronous clamping structures, wherein the upper supporting base plate and the lower supporting base plate are oppositely arranged, and the two sets of synchronous clamping structures are arranged between the upper supporting base plate and the lower supporting base plate in a stacked mode. Each set of synchronous clamping mechanism is composed of a synchronous gear and two clamping plates in meshing transmission with the synchronous gear, one clamping plate is pushed to drive the other clamping plate to move in the same direction, and the two sets of synchronous clamping mechanisms conduct clamping from the four edges of a product. The clamping support provided by the utility model can fix a product from four sides, can effectively fix the position of the product, and prevents the product from moving. The utility model has the advantages of small structure and sensitive operation, and can be used for fixing devices such as mobile phones, tablet personal computers and the like in life.

Description

Technical Field

[0001] The utility model relates to a clamping bracket, in particular to a clamping bracket capable of synchronously extending on four sides. Background Art

[0002] Mobile phones, tablet computers, etc. are common electronic products in life and have been widely used in people's daily lives. The prior art provides a clamping bracket to fix electronic products so that people can free their hands. At present, conventional clamping brackets are usually customized for specific products. The size of the clamping bracket matches the specific product and does not have the ability to be compatible and adjusted.

[0003] The utility model patent with announcement number CN218947445U provides a synchronous extension self-locking clamping device, which drives the telescopic arm to move through the meshing of the synchronous gear and the rack, and has the ability to adjust the position of the telescopic arm according to the compatibility of products of different lengths. However, the clamping bracket can only move along the length direction of the product, so the clamping claw for positioning the product is set at the angular position of the telescopic arm, and the width direction position cannot be adjusted according to the compatibility of the product.

[0004] In view of the above-mentioned prior art, it is necessary to make further improvements to the clamping bracket. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a four-sided synchronously extending clamping bracket, which is characterized by comprising an upper supporting base plate and a lower supporting base plate which are arranged opposite to each other, and two sets of synchronous clamping structures which can move in a directional manner are arranged between the upper supporting base plate and the lower supporting base plate, and the clamping directions of the two sets of synchronous clamping structures are perpendicular to each other;

[0006] Each set of synchronous clamping mechanisms includes a set of synchronous gears and two clamping plates arranged in pairs, each clamping plate includes a clamping plate body and a rack extending from the clamping plate body, the rack is meshed with the corresponding synchronous gear for transmission, the racks on the paired clamping plates are respectively located on both sides of the meshed synchronous gears, and the meshing transmission direction is opposite to that of the synchronous gears;

[0007] The ends of the pair of clamping plates are each provided with a clamping arm facing the upper supporting base plate, the clamping arm extending from one end of the clamping plate body away from the synchronous gear, and moving along the meshing transmission direction when the rack and the synchronous gear are meshed and transmitted, so as to clamp the product from both sides;

[0008] The rotation center axes of the synchronous gears in the two sets of synchronous clamping structures are located on the same axis.

[0009] Furthermore, a pad is arranged on the loading surface of the upper supporting substrate.

[0010] Furthermore, at least one positioning column connected to an external position is disposed at the bottom of the lower supporting substrate.

[0011] Furthermore, a central sleeve is provided between the upper supporting base plate and the lower supporting base plate, and two sets of synchronous gears are rotatably connected to the central sleeve;

[0012] Annular clamping edges are arranged on the outer circumferences of both ends of the central sleeve, and the upper supporting base plate and the lower supporting base plate are clamped on the annular clamping edges.

[0013] Furthermore, the clamping arm is a U-shaped groove structure opening inward, and a groove edge of the U-shaped groove extends from a side edge of the clamping plate body.

[0014] Furthermore, a groove edge of the U-shaped groove away from the clamping plate body is inclined to the plane where the clamping plate is located.

[0015] Furthermore, each clamping plate includes a guide bar extending along its clamping direction, the rack is arranged in parallel with the guide bar, and the guide bar of each clamping plate is in sliding contact with the side edge of the rack on the clamping plate paired with it.

[0016] Furthermore, the upper support base plate and the lower support base plate are connected by fasteners, and the clamping plate is provided with an avoidance groove for avoiding the fasteners.

[0017] Furthermore, the avoidance grooves on the two pairs of clamping plates are arranged alternately in upper and lower planes, and the fasteners are located at the intersection of the upper and lower sets of avoidance grooves.

[0018] Furthermore, a stepped support edge is provided on the edge of the lower support substrate, and a support groove is provided on the edge of the upper support substrate at a position corresponding to the support edge.

[0019] The utility model provides a four-sided synchronously extending clamping bracket, comprising an upper supporting base plate and a lower supporting base plate arranged opposite to each other, and two sets of synchronous clamping structures stacked between the upper supporting base plate and the lower supporting base plate. Each set of synchronous clamping mechanisms is made of a synchronous gear and two clamping plates meshing with the synchronous gears, and by pushing one clamping plate to drive the other clamping plate to move in the same direction, the two sets of synchronous clamping mechanisms clamp the product from four sides.

[0020] The clamping bracket provided by the utility model can fix the product from four sides, can effectively fix the position of the product and prevent the product from moving. The utility model has a compact structure, sensitive operation, and simple installation, and can be used to fix mobile phones, tablet computers and other devices in life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the four-sided synchronously extending clamping bracket of the utility model;

[0022] Figure 2 It is a structural schematic diagram of a synchronous clamping structure;

[0023] Figure 3 It is an explosion schematic diagram of the utility model;

[0024] Figure 4 It is a structural diagram of the center sleeve.

[0025] Upper supporting base plate 1, lower supporting base plate 2, synchronous gear 3, pad 4, positioning column 5, center sleeve 6, annular clamping edge 7, clamping plate 8, clamping plate body 9, rack 10, clamping arm 11, U-shaped groove 12, guide bar 13, fastener 14, avoidance groove 15, connecting column 16, supporting clamping edge 17, supporting clamping groove 18, rivet fastener 19, threaded fastener 20. DETAILED DESCRIPTION

[0026] like Figures 1 to 3 The four-sided synchronously extending clamping bracket shown includes an upper supporting base plate 1 and a lower supporting base plate 2 which are arranged opposite to each other, and two sets of synchronous gears 3 are coaxially stacked up and down between the upper supporting base plate 1 and the lower supporting base plate 2, and a set of directional moving synchronous clamping structures is respectively connected to each set of synchronous gears 3, and the clamping directions of the two sets of synchronous clamping structures are perpendicular to each other.

[0027] In this embodiment, the upper support substrate 1 and the lower support substrate 2 are both made of metal. The upper surface of the upper support substrate 1 is where the product is stored. A pad 4 is arranged on the upper surface of the upper support substrate 1 to prevent the surface of the product from directly contacting the upper support substrate 1 and causing wear on the surface of the product.

[0028] At least one positioning column 5 is disposed at the bottom of the lower supporting substrate 2 , and the lower supporting substrate 2 is fixed at an external target position by the positioning column 5 .

[0029] The direction in which the lower support substrate 2 is opposite to the upper support substrate 1 is the inner direction, and the direction in which they are opposite to each other is the outer direction. Figure 4 As shown, a central sleeve 6 is arranged between the lower supporting substrate 2 and the upper supporting substrate 1, and two sets of synchronous gears 3 are rotatably connected to the central sleeve 6; at the same time, annular clamping edges 7 are arranged on the outer circumferences of both ends of the central sleeve 6, and the upper supporting substrate 1 and the lower supporting substrate 2 are clamped on the annular clamping edges 7, so as to stabilize the relative position between the upper supporting substrate 1 and the lower supporting substrate 2.

[0030] Each set of synchronous clamping mechanisms includes two clamping plates 8 arranged in pairs, each clamping plate 8 includes a clamping plate body 9 and a rack 10 extending from the clamping plate body 9, the rack 10 is meshed with the corresponding synchronous gear 3 for transmission, and the racks 10 on the pair of clamping plates 8-1 are respectively located on both sides of the meshed synchronous gear 3, and the meshing transmission direction is opposite to the synchronous gear 3. The ends of the pair of clamping plates 8-1 are each provided with a clamping arm 11 facing the upper support base plate 1, the clamping arm 11 extends from one end of the clamping plate body 9 away from the synchronous gear 3, and moves along the meshing transmission direction when the rack 10 is meshed with the synchronous gear 3 for transmission, so as to clamp the product from both sides.

[0031] When one of the pair of clamping plates 8-1 is pushed, the clamping plate 8 drives the synchronous gear 3 to rotate, thereby driving the other clamping plate 8 to move synchronously toward each other. At the same time, the other pair of clamping plates 8-2 clamp the product from a perpendicular direction, thereby fixing the four sides of products of different lengths.

[0032] In this embodiment, the clamping plate 8 is made of metal material, and the clamping arm 11 is configured as a U-shaped groove 12 structure with an opening inward, and one groove edge of the U-shaped groove 12 extends from the side edge of the clamping plate body 9. During the clamping process, the side edge of the product is positioned between the U-shaped groove 12, thereby reducing the vertical movement of the product.

[0033] Furthermore, the U-shaped groove 12 is tilted away from the clamping plate body 9 to the plane where the clamping plate 8 is located. During the movement of the clamping arm 11, the product will be guided along the groove edge to gradually extend into the U-shaped groove 12. The tilted groove edge applies a gradually increasing tight pressure to the product, thereby increasing the clamping effect of the clamping arm 11, and different products can find a suitable clamping point. If a right-angled U-shaped groove edge is used, the clamping thickness of the clamping arm 11 is limited. When the clamping thickness is too small, the clamping may be unstable.

[0034] Furthermore, each clamping plate 9 includes a guide bar 13 extending along the clamping direction, the rack 10 is arranged in parallel with the guide bar 13, and the guide bar 13 of each clamping plate 8 is in sliding contact with the side of the rack 10 on the clamping plate 8 paired therewith. The rack 10 is meshed with the synchronous gear 3 for transmission, and the guide bar 13 presses the rack 10 against the side of the synchronous gear 3 to maintain the meshing transmission force between the rack 10 and the synchronous gear 3.

[0035] In this embodiment, the upper support base plate 1 and the lower support base plate 2 are fastened together by means of a fastener 14, and the clamping plate 8 is provided with an avoidance groove 15 for avoiding the fastener 14. When the clamping plate 8 moves, the avoidance groove 15 moves relative to the fastener 14, and the fastener 14 can guide the movement of the clamping plate 8.

[0036] Furthermore, the avoidance grooves 15 on the two pairs of clamping plates 8-1 and 8-2 are staggered in the upper and lower planes, and the fasteners 14 are located at the intersection of the upper and lower sets of avoidance grooves 15, so that the same fastener 14 can guide the upper and lower pairs of clamping plates 8 at the same time.

[0037] Furthermore, protruding connection columns 16 are provided at positions of the upper support substrate 1 and the lower support substrate 2 corresponding to the fasteners 14 , and the fasteners 14 are inserted into the connection columns 16 when fastening to reduce the space occupied by the upper support substrate 1 and the lower support substrate 2 themselves.

[0038] Furthermore, the avoidance groove 15 is provided on the guide bar 13 or the rack 10 and extends along the clamping direction.

[0039] The fasteners 14 in this embodiment include two types: rivet fasteners 19 and threaded fasteners 20. The rivet fasteners 19 and threaded fasteners 20 jointly fix the positions of the upper support substrate 1 and the lower support substrate 2, and at the same time limit the movement trajectory of the clamping plate 8 to prevent the clamping plate 8 from falling from the upper support substrate 1 and the lower support substrate 2 during the pulling process. On this basis, the threaded fasteners 20 can play a role in locking the position of the clamping plate 8. When the two sets of synchronous clamping structures are clamped in place, the threaded fasteners 20 are tightened on the surface of the upper support substrate 1 or the lower support substrate 2, thereby increasing the movement resistance of the clamping plate 8 and preventing the clamping plate 8 from loosening due to too small a pulling force.

[0040] The threaded fasteners 20 of this embodiment are arranged at the intersection of the two groups of avoidance grooves 15 , and two threaded fasteners 20 are arranged corresponding to the number of avoidance grooves 15 , so as to minimize the number of threaded fasteners 20 while ensuring the locking force.

[0041] Furthermore, a stepped support edge 17 is provided on the edge of the lower support substrate 2, and a support groove 18 is provided on the edge of the upper support substrate 1 at a position corresponding to the support edge 17, and the support groove 18 cooperates with the support edge 17 to stabilize the relative position between the upper support substrate 1 and the lower support substrate 2.

[0042] The working process of this embodiment is as follows: place the product to be clamped on the surface of the pad 4, push the clamping arm 11 of one of the clamping plates 8, and drive the other clamping plate 8 paired with it to move relative to it, thereby fixing the two side edge positions of the product; then push the clamping plate 8 on the other side, and drive the clamping plate 8 opposite to it to move toward each other, thereby achieving the fixation of the four sides of the product.

[0043] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. Four-sided synchronous extension clamping bracket, characterized by: It comprises an upper supporting substrate (1) and a lower supporting substrate (2) which are arranged opposite to each other, and two sets of synchronous clamping structures which can move in a directional manner are arranged between the upper supporting substrate (1) and the lower supporting substrate (2), and the clamping directions of the two sets of synchronous clamping structures are perpendicular to each other; Each set of synchronous clamping mechanisms comprises a set of synchronous gears (3) and two clamping plates (8) arranged in pairs, each clamping plate (8) comprises a clamping plate body (9) and a rack (10) extending from the clamping plate body (9), the rack (10) meshes with the corresponding synchronous gear (3) for transmission, the racks (10) on the paired clamping plates (8) are respectively located on both sides of the meshing synchronous gears (3) and are in the opposite direction of meshing transmission with the synchronous gears (3); The end portions of the pair of clamping plates (8) are each provided with a clamping arm (11) facing the upper supporting base plate (1), the clamping arm (11) extending from one end of the clamping plate body (9) away from the synchronous gear (3), and moving along the meshing transmission direction when the rack (10) and the synchronous gear (3) are meshed for transmission, so as to clamp the product from both sides; The rotation center axes of the synchronous gears (3) in the two sets of synchronous clamping structures are located on the same axis.

2. The four-sided synchronously extending clamping bracket according to claim 1, characterized in that: A pad (4) is arranged on the object-carrying surface of the upper supporting substrate (1).

3. The four-sided synchronously extending clamping bracket according to claim 1, characterized in that: At least one positioning column (5) connected to an external position is provided at the bottom of the lower supporting base plate (2).

4. The four-sided synchronously extending clamping bracket according to claim 1, characterized in that: A central sleeve (6) is provided between the upper supporting base plate (1) and the lower supporting base plate (2), and two sets of synchronous gears (3) are rotatably connected to the central sleeve (6); Annular clamping edges (7) are arranged on the outer circumferences of both ends of the central sleeve (6), and the upper supporting base plate (1) and the lower supporting base plate (2) are clamped on the annular clamping edges (7).

5. The four-sided synchronously extending clamping bracket according to claim 1, characterized in that: The clamping arm (11) is a U-shaped groove (12) structure with an opening facing inward, and a groove edge of the U-shaped groove (12) extends from a side edge of the clamping plate body (9).

6. The four-sided synchronously extending clamping bracket according to claim 5, characterized in that: A groove edge of the U-shaped groove (12) away from the clamping plate body (9) is inclined to the plane where the clamping plate (8) is located.

7. The four-sided synchronously extending clamping bracket according to claim 1, characterized in that: Each clamping plate (8) is provided with a guide bar (13) extending along its clamping direction, the rack (10) and the guide bar (13) are arranged in parallel, and the guide bar (13) of each clamping plate (8) and the rack (10) on the clamping plate (8) paired therewith are in sliding contact with each other.

8. The four-sided synchronously extending clamping bracket according to claim 1, characterized in that: The upper support base plate (1) and the lower support base plate (2) are connected by means of a fastener (14), and the clamping plate (8) is provided with an avoidance groove (15) for avoiding the fastener (14).

9. The four-sided synchronously extending clamping bracket according to claim 8, characterized in that: The avoidance grooves (15) on the two pairs of clamping plates (8) are arranged alternately in upper and lower planes, and the fasteners (14) are located at the intersection of the upper and lower sets of avoidance grooves (15).

10. The four-sided synchronously extending clamping bracket according to claim 8, characterized in that: The edge of the lower support substrate (2) is provided with a stepped support clamping edge (17), and the edge of the upper support substrate (1) is provided with a support clamping groove (18) at a position corresponding to the support clamping edge (17).

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