Table top loading clamp

Abstract

The invention relates to a table top loading clamp which comprises an upper clamping plate, a lower clamping plate and an adjusting bolt. The adjusting bolt is rotatably positioned on the upper clamping plate and can drive the lower clamping plate to lift; the device is characterized in that a vertical guide plate is fixed to the bottom of the upper clamping plate, a sliding block is arranged on the vertical guide plate in a sliding mode, the sliding block is in threaded fit with a threaded section of an adjusting bolt, and the adjusting bolt drives the sliding block to ascend and descend; the lower clamping plate is rotatably positioned on the sliding block through a positioning shaft and can be vertically unfolded and turned over upwards relative to the sliding block, and a torsional spring which keeps the lower clamping plate vertically unfolded all the time is arranged between the lower clamping plate and the sliding block. The device has the characteristics of unique conception, simple structure and easiness in operation; particularly, the lower clamping plate which can be overturned upwards is easily inserted into the edge seam of the table top, leaves the edge constraint of the table top and can be automatically unfolded, then the lower clamping plate is driven by the adjusting bolt to ascend and is matched with the upper clamping plate to be clamped on the edge of the table top, and operation under the table top is not needed.

Description

Technical field:

[0001] The present invention belongs to the technical field of quick-install clamps, and particularly relates to a table-mounted clamp, more particularly a solution that can be installed from above the table and used to support equipment such as displays. Background technology:

[0002] To ensure stable support for monitor stands, there are generally two types of support solutions: one is a heavy-duty base, and the other is a desktop clamp. The former is large and heavy, but flexible to place; the latter is lightweight and needs to be clamped on the edge of a desktop or board, and has certain requirements for the place of use.

[0003] For example: CN202122038670.0 discloses a top-mounted desktop clamp, including a fixed splint, a movable splint, an adjusting bolt and a resistance pad; wherein: the fixed splint is in an inverted L-shape, and multiple rows of perforations are provided on the vertical surface; the movable splint is in an L-shape, and a hook is bent backward on the vertical surface; the hook is inserted into the perforation and moves downward, and can reliably hook the lower edge of the perforation; in addition, the fixed splint is directly mounted on the seat body pillar using a through hole to form a bracket base with quick-installation characteristics.

[0004] CN202223414848.8 discloses a portable lightweight desktop clamp, which includes an upper clamping plate, a lower clamping plate, and a clamping adjustment screw and a positioning plug plate for adjusting the upper clamping plate and the lower clamping plate to clamp the desktop; wherein both the upper clamping plate and the lower clamping plate are provided with reserved holes for facilitating the passage of the clamping adjustment screw; both are also provided with positioning grooves for facilitating the engagement of the positioning plug plate; wherein the clamping adjustment screw also includes an upper smooth part and a lower locking part, wherein a limiting disk is provided on the upper smooth part, and its lower locking part is an external thread; the reserved hole on the lower clamping plate is a threaded hole adapted to the external thread on the clamping adjustment screw; and a convex rib is preset on the top of the positioning plug plate.

[0005] In both of the above structures, installation requires access to the space below the tabletop to screw the movable plate or lower plate onto the adjustment bolts. If the edge of the tabletop is restricted, installation becomes difficult. How to provide a more reasonable installation solution has become the subject of this invention. Summary of the invention:

[0006] The purpose of the present invention is to design a table top mounting fixture with a lower clamping plate capable of turning upward so as to enter a gap at the edge of the table top.

[0007] The technical solution of the present invention is implemented as follows: a table top clamp includes an upper clamp, a lower clamp and an adjusting bolt; the adjusting bolt can be rotatably positioned on the upper clamp, and can drive the lower clamp to rise and fall; it is characterized in that: a vertical guide plate is fixed to the bottom of the upper clamp, and a slider is slidably arranged on the vertical guide plate, the slider is threadedly engaged with the threaded section of the adjusting bolt, and the slider is driven to rise and fall by the adjusting bolt; the lower clamp can be rotatably positioned on the slider through a positioning shaft, and can be vertically expanded and flipped upward relative to the slider, and a torsion spring is provided between the lower clamp and the slider to always keep the lower clamp vertically expanded.

[0008] A blocking arm is provided at the lower portion of the vertical guide plate, and the lower clamping plate can be blocked by the blocking arm and flipped upward when the adjusting bolt is driven downward.

[0009] The blocking arm is an L-shaped sheet metal part, the lower part of which is locked on the vertical guide plate, and the suspended top part is used to resist the bottom surface of the lower clamping plate.

[0010] A support column is provided in the center of the upper splint, and a vertical guide plate is fixed at one edge. The vertical guide plate is a sheet metal part, with an arc bend in the middle to avoid the passage of the adjusting bolt, and guide rails on both sides of the edge; the slider is a casting, with a threaded hole in the center and vertical grooves formed on both sides of the edge, and is slidably sleeved on the guide rails on both sides of the vertical guide plate with the help of the two vertical grooves.

[0011] The slider is provided with an axle seat on each side away from the vertical slot, and the lower clamping plate has axle ears corresponding thereto. There is a notch in the middle of the axle ears between the two axle seats, and the torsion spring is arranged in the notch and passed through by the positioning shaft.

[0012] The torsion spring is a double torsion spring, wherein the middle buckle is in contact with the positioning shaft synchronized with the slider, and the arms at both ends are in contact with the lower clamping plate, thereby maintaining the tendency of driving the lower clamping plate to expand vertically.

[0013] The surface of the lower clamping plate is formed with a groove, and the arc surface of the shaft ear is provided with a stopper. When the lower clamping plate is vertically unfolded into position, the stopper abuts against the surface of the slider.

[0014] A blocking piece is convexly provided on the bottom surface of the lower clamping plate, and the blocking arm is constrained at its contact position by means of the blocking piece.

[0015] The present invention has the characteristics of unique conception, simple structure and easy operation; in particular, it utilizes the lower clamping plate that can be flipped upward, which can be easily inserted into the edge gap of the table top, and can automatically unfold after leaving the constraint of the edge of the table top. The lower clamping plate is then driven to rise with the help of the adjusting bolt, and is clamped at the edge of the table top in cooperation with the upper clamping plate, without the need to enter under the table top for operation; further, by rotating the adjusting bolt in the opposite direction, the clamping of the table top can be loosened, and by continuing to rotate the adjusting bolt, the lower clamping plate can be lowered to the designed position, and it will be blocked by the blocking arm and flipped upward, folded and fitted on the vertical guide plate, making it convenient to lift from the edge gap of the table top. The disassembly and assembly operations of the clamp are all completed above the table top. Description of the drawings:

[0016] The present invention will be further described below with reference to specific figures:

[0017] Figure 1 Schematic diagram of the fixture installed on the table

[0018] Figure 2 Schematic diagram of the folding fixture on the table

[0019] Figure 3 Schematic diagram of the side view of the fixture installed on the table

[0020] Figure 4 Schematic diagram of the folded side of the fixture on the table

[0021] Figure 5 Schematic diagram of the fixture installed on the table

[0022] in

[0023] 1—upper splint; 11—support column;

[0024] 2—lower splint; 21—axle ear; 22—notch; 23—blocking piece; 24—groove; 25—stopper;

[0025] 3—Adjusting bolt;

[0026] 4—vertical guide plate; 41—arc bend; 42—guide rail;

[0027] 5—slider; 51—threaded hole; 52—vertical slot; 53—axle seat; 54—positioning shaft;

[0028] 6—torsion spring;

[0029] 7—blocking arm; Specific implementation method:

[0030] Reference Figures 1 to 5 The table is equipped with a fixture, including an upper clamping plate 1, a lower clamping plate 2, an adjusting bolt 3, a vertical guide plate 4, a slider 5 and a torsion spring 6.

[0031] A support column 11 is centrally located on the upper clamping plate 1, with a vertical guide plate 4 secured to one edge. An adjustment bolt 3 is pivotally positioned on the upper clamping plate 1, located inside the center of the vertical guide plate 4. More specifically, the vertical guide plate 4 is a sheet metal component with a central bend 41 to accommodate the adjustment bolt, and two side edges formed as guide rails 42 to conserve thickness. A slider 5 is slidably mounted on the vertical guide plate 4, threadedly engaging the threaded section of the adjustment bolt 3. The adjustment bolt 3 drives the slider 5 up and down. The upper clamping plate's support column 11 is used to secure devices requiring support, such as monitor stands.

[0032] The slider 5 is a casting with a threaded hole 51 in the center and vertical grooves 52 on both sides. It is slidably mounted on the guide rails 42 on both sides of the vertical guide plate by means of the two vertical grooves 52, forming a sliding fit with the vertical guide plate 4. The lower clamping plate 2 can be rotatably positioned on the slider 5 by the positioning shaft 54, and can be vertically expanded and flipped upward relative to the slider 5. Figure 3 and Figure 4 A torsion spring 6 is provided between the lower clamping plate 2 and the slider 5 to keep the lower clamping plate 2 vertically expanded. The torsion spring 6 plays the role of opening the lower clamping plate 2 to ensure that there is no need to enter the space above the table during the installation operation.

[0033] The specific matching structure between the lower clamping plate 2 and the slider 5 is as follows: the slider 5 is provided with a shaft seat 53 on each of its two edges away from the vertical slot 52, and the lower clamping plate 2 has a corresponding shaft ear 21. The shaft ear 21 located between the two shaft seats 53 has a notch 22 in the middle, and a torsion spring 6 is arranged in the notch and is passed through by the positioning shaft 54. The torsion spring 6 is a double torsion spring, with the middle retaining ring abutting the positioning shaft 54 ​​synchronized with the slider 5, and the two end arms abutting the lower clamping plate 2, maintaining the tendency to drive the lower clamping plate 2 to expand vertically. When installing the clamp on the table, the lower end of the clamp is inserted into the gap of the vertical guide plate 4. The lower clamping plate 2 is blocked by the edge of the table and overcomes the torsion spring force to flip over and smoothly enter the space below the table. The lower clamping plate 2, no longer constrained by the edge of the table, expands vertically under the action of the torsion spring force, so that it can be driven upward by the adjusting bolt 3 and together with the upper clamping plate 1 to clamp the table.

[0034] Furthermore, a stop arm 7 is provided at the bottom of the vertical guide plate 4. When the lower clamping plate 2 is driven downward by the adjusting bolt, it can be blocked by the stop arm 7 and flipped upward. For convenient disassembly, the adjusting bolt 3 is used to continue to drive the lower clamping plate 2 downward until it is touched by the stop arm 7 and forced to flip upward and fit on the vertical guide plate 4 so that it can be pulled upward from the gap in the table top to complete the disassembly operation. The function of the stop arm 7 is similar to the resistance of the table top, forcing the lower clamping plate 2 to retract. Preferably, the stop arm 7 is an L-shaped sheet metal part, the lower part of which is locked to the vertical guide plate 4, and the suspended top part is used to resist the bottom surface of the lower clamping plate 2. In order to reduce the turning drive stroke of the lower clamping plate, a stop plate 23 is provided on the bottom surface of the lower clamping plate 2. The stop plate 23 is used to constrain the resistance position of the stop arm 7. In other words, it prevents the top of the stop arm 7 from contacting the bottom surface of the lower clamping plate 2 and sliding as the lower clamping plate flips up, which can greatly reduce the downward driving stroke of the adjusting bolt 3.

[0035] In addition, a groove 24 is formed on the surface of the lower splint 2, and a stopper 25 is provided on the arc surface of the shaft ear 21. When the lower splint 2 is vertically unfolded into position, the stopper 25 abuts against the surface of the slider 5 to withstand the reaction force of clamping; and the design of the groove 24 can reduce the overall thickness after being fitted to the vertical guide plate 4, so as to meet the requirements of inserting into smaller table edge gaps and adapt to a wider range of occasions.

Claims

1. A table top fixture, comprising an upper clamping plate (1), a lower clamping plate (2) and an adjusting bolt (3); the adjusting bolt (3) can be rotatably positioned on the upper clamping plate (1) and can drive the lower clamping plate (2) to rise and fall; characterized in that: A vertical guide plate (4) is fixed at the bottom of the upper clamping plate (1), and a slider (5) is slidably arranged on the vertical guide plate (4). The slider (5) is threadedly matched with the threaded section of the adjusting bolt (3), and the adjusting bolt (3) drives the slider (5) to rise and fall; the lower clamping plate (2) can be rotatably positioned on the slider (5) through a positioning shaft (54), and can be vertically expanded and turned upward relative to the slider (5). A torsion spring (6) is arranged between the lower clamping plate (2) and the slider (5) to always keep the lower clamping plate (2) vertically expanded.

2. The table top mounting fixture according to claim 1, characterized in that: A blocking arm (7) is provided at the lower part of the vertical guide plate (4), and the lower clamping plate (2) can be blocked by the blocking arm (7) and turned upward when the adjusting bolt (3) drives the lower clamping plate (2) downward.

3. The table top mounting fixture according to claim 2, characterized in that: The blocking arm (7) is an L-shaped sheet metal part, the lower part of which is locked on the vertical guide plate (4), and the suspended top part is used to resist the bottom surface of the lower clamping plate (2).

4. A table top fixture according to claim 1 or 2, characterized in that: A support column (11) is provided at the center of the upper clamping plate (1), and a vertical guide plate (4) is fixed at one edge. The vertical guide plate (4) is a sheet metal part, and has an arc bend (41) in the middle for allowing the adjustment bolt (3) to pass through, and guide rails (42) on both sides of the edge. The slider (5) is a casting, and has a threaded hole (51) in the center and vertical grooves (52) formed on both sides of the edge. The slider is slidably sleeved on the guide rails (42) on both sides of the vertical guide plate by means of the two vertical grooves (52).

5. The table top mounting fixture according to claim 4, characterized in that: The slider (5) is provided with an axle seat (53) on each of the two edges away from the vertical groove, and the lower clamping plate (2) has an axle ear (21) corresponding thereto. A notch (22) is provided in the middle of the axle ear between the two axle seats, and a torsion spring (6) is arranged in the notch (22) and is passed through by a positioning shaft (54).

6. The table top mounting fixture according to claim 5, characterized in that: The torsion spring (6) is a double torsion spring, wherein the middle buckle ring abuts against the positioning shaft (54) synchronized with the slider, and the two end arms abut against the lower clamping plate (2), thereby maintaining the tendency of driving the lower clamping plate (2) to expand vertically.

7. The table top mounting fixture according to claim 5, characterized in that: A groove (24) is formed on the surface of the lower clamping plate (2), and a stopper (25) is provided on the arc surface of the shaft ear. When the lower clamping plate (2) is vertically unfolded to a position, the stopper (25) abuts against the surface of the slider (5).

8. The table top mounting fixture according to claim 7, characterized in that: A blocking piece (23) is convexly provided on the bottom surface of the lower clamping plate (2), and the blocking piece (23) is used to constrain the contact position of the blocking arm (7).

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