Heavy duty bowl clamp with through-hole and screw

Abstract

The application relates to a heavy-duty bowl clamp with a penetrating screwing type, which comprises a center box 1, two right-angle arms 2, a middle gear 3 and a handle 4. The two right-angle arms 2 penetrate the front and back sides of the center box 1 respectively, and the middle gear 3 controls the synchronous expansion or contraction of the two right-angle arms 2 to adapt to bowl plates of various sizes. The distance between the two right-angle arms can be locked by screwing the handle 4. The bowl clamp is more labor-saving and reliable than common bowl clamps.

Description

Technical Field

[0001] A kitchen utensil, specifically a bowl clip. Background Technology

[0002] Bowl clamps have a long history of use, and currently there are four popular types. The first type is a single-sided bowl clamp, as shown in application number 202322683555.8; the second type is a bottom-support type, as shown in application number 201911052633.6; the third type is a V-shaped type, as shown in application number 201710953536.9; and the fourth type is an umbrella-shaped retractable type, as shown in applications 201020645851.9, 202020338693.6, and 202420511511.9. The disadvantage of the first type is that the clamp is not secure, and bowls and plates are very easy to slip off. The disadvantage of the second, third, and fourth types is that clamping bowls is very strenuous. It is okay to clamp small and light bowls, but it is difficult to clamp large and heavy bowls and plates.

[0003] Unlike all the categories above, I invented a completely different type of bowl clamp that can reliably clamp both large and small bowls with equal ease. Summary of the Invention

[0004] The through-and-tight heavy-duty bowl clamp (hereinafter referred to as the bowl clamp) consists of four parts: a central box, right-angle arms, a central gear, and a handle. There are two right-angle arms, one on the left and one on the right, each containing a horizontal arm and a vertical arm. The two horizontal arms pass through the central box opposite each other. Each horizontal arm has multiple toothed grooves, and each vertical arm has a gripper at its lower end. There is also a central gear inside the central box. The central gear moves the toothed grooves on the two right-angle arms, causing the two grippers to retract inward or expand outward simultaneously. After the grippers contact the upper sides of the bowl or plate, turning the handle can lock the two right-angle arms. At this time, the handle can be lifted to safely transfer the bowl or plate along with the food to another location. Attached Figure Description

[0005] Figure 1 The situation when using bowl tongs to lift a large plate Figure 2 The situation when using tongs to lift smaller bowls or plates. Figure 3 For the complete appearance of the bowl clip Figure 4 Exploded view of the bowl clamp components Figure 5 The state of the bowl clamp as seen when removing center box 1 Figure 6 The condition inside gear chamber 13 as seen when removing handle 4. Figure 7 External and internal structural views of central box 1 Figure 8External and internal structural views of handle 4 Component name and part number Center box 1, box body 11, guide groove 12, gear chamber 13; right angle arm 2, horizontal arm 21, vertical arm 22, inclined plane 221, gripper 23, arc rod 231, ball head 232, tooth groove 24; middle gear 3, stud 31, gear 32, baffle 33; handle 4, sleeve 41, pressure plate 42, handle ring 43. Detailed Implementation

[0006] The following is a detailed explanation with reference to the accompanying drawings.

[0007] like Figure 4 The through-and-tight heavy-duty cup clamp includes a central box 1, right-angle arms 2, a central gear 3, and a handle 4. The central box 1 includes a box body 11, a gear chamber 12, and guide grooves 13. The gear chamber 12 is a vertically penetrating circular cavity located in the center of the box body 11. There are two guide grooves 13, symmetrically distributed on the front and rear sides of the gear chamber 12 and penetrating the entire box body 11 from left to right. The central gear 3 is installed inside the gear chamber 12. The central gear 3 is divided into three parts: an upper stud 31, a middle gear 32, and a lower baffle 33. There are two right-angle arms 2, each including a horizontal arm 21, a vertical arm 22, and a gripper 23. The horizontal arm 21 has multiple equally spaced toothed grooves 24. The two horizontal arms 21 extend from the central box. Two guide grooves 12 are inserted into the left and right ends of 1; the sharp teeth on the front and rear sides of the gear 32 are respectively engaged and embedded in the tooth grooves 24 on the two right-angle arms 2, so that the two right-angle arms 2 always synchronously retract inward or expand outward with the axis of the middle gear 3 as the center of symmetry; the middle of the handle 4 is a sleeve 41, the lower end is a pressure plate 42, and the upper end is a handle ring 43; when the handle ring 43 is rotated in one direction, the sleeve 41 is screwed deeper into the stud 31, the pressure plate 42 presses and locks the two horizontal arms 21, thereby locking the distance between the two claws 23, at which time the bowl clamp can pick up bowls and basins; rotating the handle ring 43 in the opposite direction can unlock and adjust the distance between the two claws 23 to accommodate bowls and plates of other sizes.

[0008] Furthermore, the gripper 23 has an arc-shaped rod 231 in the middle, with a ball head 232 connected to each end; the middle of the arc-shaped rod 231 is fixedly connected to the vertical arm 21; when gripping the bowl, the ball head 232 contacts the left and right outer surfaces of the bowl.

[0009] Furthermore, there is an inclined surface 221 above the connection between the vertical arm 22 and the gripper 23; on both sides of the bowl and plate, when the two ball heads 232 of each gripper 23 press against the side of the bowl, the bowl and plate will rise, and when its upper edge abuts against the inclined surface 221, a stable three-point fixing method is formed on each side, so that the bowl and plate are firmly gripped; after turning the handle ring 43 to lock the bowl clamp, the bowl and plate will not shift, slip, or fall during the entire transfer process.

[0010] Furthermore, the horizontal arm 21 and the vertical arm 22 are connected by an offset connection, meaning there is a certain distance between the front and rear center surfaces of the horizontal arm 21 and the front and rear center surfaces of the vertical arm 22. The advantage of this is that it allows the two horizontal arms 21 to freely extend and retract on both sides of the central gear 3 without obstruction (e.g., ...). Figure 2 As shown in the figure, the front and rear center surfaces of the two vertical arms 21 and the gripper 23 are aligned with the front and rear center surfaces of the central gear 3, so that the center of the plate (which is often also its center of gravity) is always located directly below the central gear 3, thus preventing the plate from tilting to one side when it is lifted.

[0011] Operating method of the bowl clamp: The operator can rotate the handle ring 43 in one direction to allow the two right-angle arms 2 to slide freely; compress the distance between the two right-angle arms 2 until the clamping claws 23 contact the two sides of the plate and the upper edge of the bowl abuts against the inclined surface 221, and then rotate the handle ring 43 in the opposite direction until the pressure plate 42 and the baffle 33 work together to lock the two right-angle arms 2, so that the bowl clamp firmly clamps the bowl; at this time, the handle ring 43 can be lifted to transfer the entire bowl clamp along with the plate to another position; rotating the handle ring 43 in the opposite direction will restore the free movement of the two right-angle arms 2 and remove the bowl clamp from the plate.

[0012] Furthermore, both the horizontal arm 21 and the vertical arm 22 adopt a front-to-back flat structure to increase their inward resistance to deformation while reducing the front-to-back thickness of the bowl clamp and lightening the overall weight of the bowl clamp. The bowl clamp shown in the images is recommended to be made of carbon steel or stainless steel. It can reliably clamp bowls and plates with diameters ranging from 100 mm to 300 mm, and can reliably lift food weighing four to five kilograms, while the clamp itself weighs only 0.46 kg. Although the title is "heavy-duty bowl clamp," its actual weight is not heavy. Carbon steel or stainless steel bowl clamps are also durable and not easily damaged.

[0013] The through-and-tight heavy-duty bowl clamp has these outstanding advantages: 1) Effortless. Other types of bowl clamps require continuous gripping force from the hand to hold the bowl or plate during the entire transfer process, and most of them have a resistance arm that is much larger than the power arm, which is not only laborious but also unsafe; while the bowl clamp of this solution does not require any gripping force from the hand, and the clamping force is entirely provided by the bolt and nut. During the transfer process, the person only needs to provide a lifting force equivalent to the weight of the bowl or plate and the bowl clamp, making the operation much easier and safer than other bowl clamps. 2) Reliable. The two right-angle arms and the central box of the bowl clamp have a very rigid structure that is not easy to deform, while the screw-on locking method of the nut is very secure; the two ball heads and the upper inclined surface of each clamp form three points of fixation with the bowl surface, and the two sides form six points of fixation. These six points can adapt to the shape of the bowl or plate and can reliably hold the entire bowl or plate firmly without slippage or displacement. 3) Simple operation. Only two steps, "extend" and "twist", are needed to clamp the bowl, and then lift it to the desired location; the reverse operation can remove the bowl clamp, which can be easily used by anyone.

[0014] The directional terms used in this document are from the reader's perspective, and the names of various components are established for ease of understanding, rather than strictly following national standard part names. The technical features and scope are defined by the claims.

Claims

1. A through-and-tight heavy-duty bowl clamp, comprising a central box 1, right-angle arms 2, a central gear 3, and a handle 4; the two right-angle arms 2 pass through the front and rear sides of the central box 1 respectively, and the central gear 3 controls the two right-angle arms 2 to expand or contract synchronously to fit bowls and plates of various sizes. Twisting the handle 4 can lock the distance between the two right-angle arms to clamp the bowls and plates; lifting the handle 4 can transfer the bowl clamp along with the bowls and plates to the target position; twisting the handle 4 in the opposite direction can release the bowls and plates and remove the bowl clamp.

2. The bowl clamp according to claim 1, characterized in that: The central box 1 includes a box body 11, a guide groove 12, and a gear chamber 13; the gear chamber 13 is located at the center of the box body 11 and is a through-cavity; there are two guide grooves 12, which are located on the front and rear sides of the gear chamber 13 and extend through the entire box body 11.

3. The bowl clamp according to claim 1, characterized in that: There are two right-angle arms 2, each of which includes a horizontal arm 21, a vertical arm 22, and a gripper 23. The horizontal arm 21 and the vertical arm 22 are fixedly connected at an angle close to a right angle. The gripper 23 is located at the lowest end of the vertical arm 22. The two horizontal arms 21 pass through the two guide grooves 12 respectively. Each horizontal arm 21 also has multiple toothed grooves 24 evenly distributed.

4. The bowl clamp according to claim 1, characterized in that: The middle gear 3 includes a stud 31, a gear 32, and a baffle 33, arranged sequentially from top to bottom. The stud 31 passes through the gear chamber 13 from bottom to top, and the baffle 33 is blocked below the gear chamber 13. The gear 32 remains inside the gear chamber 13. The front and rear pointed teeth of the gear 32 are respectively inserted into the tooth grooves 24 of the two horizontal arms 21 and control the two horizontal arms 21 to slide synchronously inward or outward. Correspondingly, the distance between the two grippers 23 increases or decreases symmetrically with the axis of the stud 31 as the center, so that bowls and plates of different diameters can be clamped in the center of the bowl clamp.

5. The bowl clamp according to claim 1, characterized in that: Each of the grippers 23 includes an arc-shaped rod 231 and two ball heads 232. The two ball heads 232 are located at both ends of the arc-shaped rod and are symmetrical about the front and rear center planes of the vertical arm 22. There is a slope 221 at the connection between the vertical arm 22 and the arc-shaped rod 231. During operation, the two ball heads 232 and the slope 221 on each side of the bowl contact one side and the upper edge of the bowl, forming a three-point fixing method. There are a total of six points of contact between the bowl and the bowl on both sides, so that the bowl can be firmly clamped in the bowl clamp.

6. The bowl clamp according to claim 1, characterized in that: The handle 4 includes a sleeve 41, a pressure plate 42, and a handle ring 43. The pressure plate 42 is located at the lower end of the sleeve 41, and the handle ring is located at the upper end of the sleeve 41. The sleeve 41 has internal threads. Rotating the handle ring 43 in one direction allows the stud 31 to be screwed into the sleeve 41. When screwed in to a certain extent, the pressure plate 42 will press tightly against the two horizontal arms 21, thereby locking the distance between the two grippers 23. Rotating the handle ring 43 in the opposite direction allows the two horizontal arms 21 to return to a free sliding state.

7. The bowl clamp according to claim 3, characterized in that: In each of the right-angle arms 2, the horizontal arm 21 and the vertical arm 22 are connected by an offset method, that is, the front and rear center surfaces of the horizontal arm 21 do not coincide with the front and rear center surfaces of the vertical arm 22, while the front and rear center surfaces of the vertical arm 22 coincide with the front and rear center surfaces of the central box 1. This ensures that the front and rear center surfaces of the gripper 23 coincide with the front and rear center surfaces of the central gear 3, and also ensures that the center of the bowl or plate being gripped coincides with the center of the bowl clamp, thus ensuring that the bowl or plate will not be tilted when the bowl clamp is lifted.

8. The bowl clamp according to claim 3, characterized in that: Both the horizontal arm 21 and the vertical arm 22 adopt a front-to-back flat structure to increase their inward resistance to deformation, while reducing the front-to-back thickness of the bowl clamp and reducing the overall weight of the bowl clamp.

9. The bowl clamp according to claim 1, characterized in that: The entire bowl clamp is made of carbon steel or stainless steel to achieve greater strength and durability.

10. How to use the through-and-tight heavy-duty bowl clamp: First, turn the handle ring 43 in one direction to allow the two right-angle arms 2 to slide freely; after sliding the two right-angle arms 2 in opposite directions and allowing the two jaws 23 to clamp the bowl, turn the handle ring 43 in the opposite direction to screw the stud 31 into the sleeve 41 until the pressure plate 42 presses the two right-angle arms 2 tightly; at this time, the bowl clamp can be lifted to move the bowl to the target position; after turning the handle ring 43 again to allow the two right-angle arms 2 to return to a free sliding state, the bowl clamp can be removed from the bowl.

Images