Height-adjustable pedal type elastic potential energy presser

Abstract

The utility model relates to a kind of adjustable height pedal type elastic potential presser, including support, clamping device, press assembly, drive mechanism;Clamping device is set to the side wall of support, and clamping device is used to clamp the press container with liquid;Press assembly is adjustably set on support, and located above clamping device;Press assembly includes shell, press frame, press block, reset spring, driven frame, energy storage spring;Drive mechanism includes foot pedal and connecting assembly, one end of connecting assembly is connected with foot pedal, and the other end is connected with driven frame;When exerting force makes foot pedal move downward, driven frame is driven to move down by connecting assembly, and energy storage spring is compressed to the compression amount of energy storage spring reaches critical point after, press frame is pushed to drive press block to move down, and reset spring is compressed.In the press work, potential energy is stored by using energy storage spring compression, to ensure the force balance of press critical point, avoid liquid spatter risk.

Description

Technical Field

[0001] This utility model relates to the field of presser technology, and in particular to an adjustable height foot pedal elastic potential energy presser. Background Technology

[0002] Currently, there are various pressing methods for hand sanitizer dispensers, mainly divided into manual pressing, automatic sensing, and foot-operated direct pressing. However, manual pressing poses hygiene risks, automatic sensing is costly, and the existing foot-operated direct pressing method cannot store and release energy through mechanical structure, resulting in a stiff pressing action and large fluctuations in liquid output. Utility Model Content

[0003] Based on this, the purpose of this utility model is to provide an adjustable height foot pedal elastic potential energy press, which clamps a press container (such as a hand sanitizer pump bottle) containing liquid through a clamping device. When pressing, the energy storage spring is used to compress and store potential energy in stages, ensuring force balance at the pressing critical point and avoiding the risk of liquid splashing.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model provides an adjustable height foot-operated elastic potential energy press, including a bracket, a clamping device, a pressing assembly, and a driving mechanism; the clamping device is disposed on the side wall of the bracket and is used to clamp a press-type container containing liquid; the pressing assembly includes a housing, a pressing frame, a pressing block, a return spring, a driven frame, and an energy storage spring; the housing is height-adjustably disposed on the bracket and located above the clamping device; the pressing frame is vertically movably disposed on the housing, wherein the upper end of the pressing frame is disposed inside the housing, and the lower end extends downward through the housing; the pressing block is fixedly disposed at the lower end of the pressing frame and located directly above the clamping device; the return spring... A spring is disposed within the housing and sleeved on the pressing frame, located between the upper end of the pressing frame and the housing; a driven frame and an energy storage spring are disposed within the housing, with the driven frame positioned above the pressing frame and the energy storage spring positioned between the driven frame and the pressing frame; the drive mechanism includes a foot pedal and a connecting assembly, one end of which is connected to the foot pedal and the other end to the driven frame; when a force is applied to move the foot pedal downward, the connecting assembly drives the driven frame downward and compresses the energy storage spring until the compression of the energy storage spring reaches a critical point, thereby pushing the pressing frame to move the pressing block downward and compressing the reset spring.

[0006] The adjustable height foot-operated elastic potential energy press of this utility model uses a clamping device to clamp a press-type container filled with liquid, and adjusts the height of the pressing component to make the pressing block contact the press-type container filled with liquid; when the foot pedal is stepped on and moves downward, the driven frame moves downward through the connecting component and continuously compresses the energy storage spring. When the compression of the energy storage spring reaches a critical point, the elastic potential energy generated therein forms a dynamic balance with the liquid resistance in the press-type container filled with liquid. At this time, the pressing frame pushes the pressing block with constant pressure, squeezing out a metered amount of liquid from the press-type container filled with liquid.

[0007] Furthermore, the clamping device includes a support base and a plurality of clamping flaps; one outer side of the support base is connected to the side wall of the lower end of the bracket; the plurality of clamping flaps are evenly distributed on the outer side of the support base, and the distance between the plurality of clamping flaps and the outer side of the support base is elastically adjustable. A press-type container filled with liquid is placed on the support base, and the press-type container filled with liquid is clamped by the plurality of clamping flaps distributed on the outer side of the support base.

[0008] Further, the support base includes a lower base plate, a surrounding plate, and an upper cover plate; the surrounding plate is disposed on the outer edge of the lower base plate and encloses a cavity; a support column is provided in the middle of the lower base plate within the cavity; the upper cover plate is disposed above the surrounding plate; each clamping flap includes a flap, a fixing block, and a first elastic element; the flap is disposed on the outer side of the surrounding plate and protrudes upward from the upper cover plate; the fixing block is disposed on the inner side of the flap, and the fixing block passes through the surrounding plate and is connected to the support column through the first elastic element. With this design, pulling the flap outward causes it to move outward under the elastic action of the fixing block and the first elastic element, placing a press-type container filled with liquid on the upper cover plate of the support base. Releasing the flap causes it to move inward under the action of the first elastic element, and the flaps of multiple clamping flaps together clamp the press-type container filled with liquid.

[0009] Furthermore, a fixing frame is fixedly provided at the lower end of the bracket, the fixing frame being used to fix the bracket to the workbench. The bracket is mounted on the workbench by providing the fixing frame.

[0010] Furthermore, the fixing frame is used to fix the support to the outside of the workbench with a flat-thickness structure; the fixing frame includes a first fixing part, a second fixing part, a third fixing part, and a spiral fixing member; the first fixing part is horizontally disposed at the lower end of the support; one end of the second fixing part is vertically disposed at one end of the second fixing part and extends downward; the third fixing part is parallel to the first fixing part and is vertically disposed at the other end of the second fixing part; the third fixing part has a vertically penetrating threaded hole; the spiral fixing member is disposed on the threaded hole; when the fixing frame is fixed to the outside of the workbench with a flat-thickness structure, the first fixing part and the third fixing part are respectively located above and below the flat-thickness structure of the workbench; the second fixing part is located on the outside of the flat-thickness structure of the workbench and is fixed by the spiral fixing member spirally abutting against the lower part of the flat-thickness structure of the workbench. This utility model designs the above-mentioned fixing frame, which can achieve quick clamping on the flat-thickness structure of the workbench for installation on the workbench.

[0011] Furthermore, the spiral fastener includes a bolt and a fixing plate horizontally disposed on the top of the bolt; the bolt is disposed within the threaded hole; and the top of the fixing plate is provided with raised textures. With the above design, when installed on the workbench, the fixing plate on the spiral fastener abuts against the bottom of the workbench. The raised textures on the top of the fixing plate increase the stability when the fixing plate abuts against the bottom of the workbench.

[0012] Further, the driven frame includes a driven connecting part and two limiting rods; the two limiting rods are spaced apart and one end of each limiting rod is vertically disposed below the driven connecting part; the pressing frame includes a pressing connecting part and two connecting rods, the two connecting rods are spaced apart and one end of each connecting rod is vertically disposed below the pressing connecting part; the pressing connecting part is provided with limiting grooves corresponding to the two limiting rods and penetrating into the interior of the two connecting rods; the other end of each limiting rod is movably disposed within the two limiting grooves; the energy storage spring is disposed between the driven connecting part and the pressing connecting part, and the two ends of the energy storage spring abut against the lower part of the driven connecting part and the upper part of the pressing connecting part, respectively; the other end of each connecting rod protrudes from the housing; the pressing block is fixed to the other end of each connecting rod; two return springs are provided, and the two return springs are respectively sleeved on the two connecting rods, and the two ends of each return spring abut against the lower part of the pressing connecting part and the housing, respectively. With the above design, when a force is applied to make the foot pedal move downward, the connecting assembly drives the two limiting rods of the driven frame to move downward in the two limiting holes respectively, and compresses the energy storage spring; when the compression of the energy storage spring reaches the critical point, it pushes the pressing frame to move the pressing block downward, and compresses the reset spring.

[0013] Furthermore, the housing includes a height adjustment section and a protrusion; the height adjustment section is fitted onto the upper end of the bracket and is height-adjustable relative to the bracket; the protrusion is integrally connected to the height adjustment section and protrudes to one side relative to the height adjustment section; the protrusion is located above the clamping device. Through the above design, the height adjustment section is fitted onto the upper end of the bracket for height adjustment, and the protrusion protrudes to one side relative to the height adjustment section to accommodate components such as a pressing frame, pressing block, compression spring, driven frame, and energy storage spring, so that the pressing block is located directly above the clamping device.

[0014] Furthermore, the foot pedal includes a pedal and a pedal base; one end of the pedal is hinged to the pedal base via a pedal pivot, and the other end is connected to the connecting assembly.

[0015] Furthermore, the connecting assembly includes a rope, several guide wheels, a drive rod, and a connecting rod; the drive rod and connecting rod are disposed within the housing; the middle portion of the drive rod is hinged within the housing; one end of the drive rod is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the upper end of the driven frame; the pedal is disposed below the fixed frame, one end of the rope is connected to the other end of the pedal, and the rope is movably routed through several guide wheels, passing through the interior of the fixed frame, the interior of the support, and into the housing; the other end of the rope is connected to the other end of the drive rod. This design allows the rope to slide along a predetermined path, facilitating the drive rod to drive the connecting rod to a point, thereby causing the driven frame to move downwards.

[0016] Furthermore, the mounting bracket is provided with a boss for storing ropes. After one end of the rope wraps around the other end of the pedal, its end can extend to the boss and be wrapped and stored there. This design can store excess rope, allowing the housing of the pressing component to be adjusted in height to accommodate the excess rope, meeting different rope length requirements while maintaining an aesthetically pleasing appearance.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) The design concept of the adjustable height foot pedal elastic potential energy press of this utility model is: a three-stage energy conversion mechanism of "foot pedal kinetic energy → spring potential energy → stable liquid pressure energy".

[0019] (2) The adjustable height foot-operated elastic potential energy press of this utility model has a three-stage energy conversion mechanism of "foot pedal kinetic energy → spring potential energy → stable liquid pressure energy" during use. When the user steps on the pedal (inputs kinetic energy), the traction rope drives the drive rod to rotate and swing; the drive rod, driven by the connecting rod, converts the rotational motion into the vertical linear motion of the driven frame, continuously compressing the energy storage spring. When the compression of the energy storage spring reaches the critical point, the elastic potential energy it generates forms a dynamic balance with the liquid resistance in the hand sanitizer dispenser. At this time, the system is in a stable output state, realizing quantitative and stable dispensing of hand sanitizer and avoiding the risk of hand sanitizer splashing.

[0020] (3) The clamping device of the adjustable height foot pedal elastic potential energy press of this utility model adopts a three-spring-lobe linkage mechanism. The clamping lobes, which slide independently, self-contract under the pre-tightening force of the first elastic element, and can stably clamp press containers with circular or near-circular cross sections containing liquid. Its core advantages are: dynamic adaptability - the independent sliding stroke of the clamping lobes ensures uniform force on bottles of different sizes and avoids stress concentration at a single point; quick operation - the pre-compression design of the first elastic element realizes "clamping as soon as it is put in"; compatibility - it supports press containers with different diameters containing liquid.

[0021] (4) The adjustable height foot pedal elastic potential energy press of this utility model is designed with a fixed frame installation and fixing method: the fixed plate is driven by rotating the bolt with a wrench to generate a linear clamping force, so as to realize the quick clamping of the workbench.

[0022] (5) The design adopts a tool-free height adjustment design. Users only need to manually loosen the screw adjustment part to allow the housing of the pressing component to slide freely on the upper end of the bracket for height adjustment. It can quickly adapt to press containers filled with liquid of different heights, completely solve the compatibility problem caused by the height difference of press containers filled with liquid. It is easy to operate and does not require additional auxiliary tools. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the adjustable height foot pedal elastic potential energy press of this utility model.

[0024] Figure 2 This is a front view of the adjustable height foot pedal elastic potential energy press of this utility model (where clamping device 2 is shown in cross section).

[0025] Figure 3 This is a front view of the adjustable height foot pedal elastic potential energy press of this utility model (showing a partial internal view of the lower end of the bracket and a schematic view of the interior of the pressing component's housing).

[0026] Figure 4 This is a side view of the adjustable height foot pedal elastic potential energy press of this utility model;

[0027] Figure 5 A structural diagram of the bracket, clamping device, and fixing frame.

[0028] Figure 6 A schematic diagram of the support structure for the bracket and clamping device;

[0029] Figure 7 This is a schematic diagram of the clamping flap of the clamping device;

[0030] Figure 8 A structural schematic diagram of the bracket, clamping device (section), and fixing frame;

[0031] Figure 9 This is a schematic diagram of the pressing component;

[0032] Figure 10 This is a structural schematic diagram of the housing body and housing cover of the pressing component;

[0033] Figure 11 This is a schematic diagram of the internal structure of the housing of the pressing component;

[0034] Figure 12 This is a structural diagram of the driven frame, energy storage spring, pressing frame, return spring, and pressing block;

[0035] Figure 13 This is a structural diagram of the fixed frame and part of the drive mechanism;

[0036] Figure 14 A schematic diagram of the structure in which the first fixing part, the second fixing part, and the third fixing part of the fixing frame are integrally formed;

[0037] Figure 15 This is a structural diagram of the fixed plate;

[0038] Figure 16 This is a structural diagram of the pedal and pedal base;

[0039] Figure 17 This is a physical diagram of the adjustable height foot pedal elastic potential energy press of this utility model;

[0040] In the diagram: 1. Bracket; 2. Clamping device; 21. Bearing seat; 211. Lower base plate; 212. Enclosure plate; 213. Upper cover plate; 214. Support column; 22. Clamping flap; 221. Flap; 222. Fixing block; 223. First elastic element; 3. Pressing assembly; 31. Housing; 311. Height adjustment part; 3111. Screw hole; 312. Protrusion; 313. Housing body; 314. Housing cover; 32. Pressing frame; 33. Pressing block; 331. Fixing groove; 321. Pressing connection part; 322. Connecting rod; 323. Limiting groove; 324. Limiting through hole; 34. Return spring; 35. Driven frame; 351. Driven connection part; 352, limiting rod; 353, sleeve rod; 36, energy storage spring; 37, spiral adjusting part; 38, rope guide fixing part; 4, drive mechanism; 41, foot pedal; 411, pedal; 412, pedal base; 413, pedal shaft; 42, connecting assembly; 421, rope; 4211, rope connector; 422, guide wheel; 423, drive rod; 424, connecting rod; 5, fixing frame; 51, first fixing part; 511, rope channel; 52, second fixing part; 521, boss; 53, third fixing part; 54, spiral fixing part; 541, bolt; 542, fixing plate; 543, raised texture. Detailed Implementation

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] Furthermore, the terms "first," "second," "third," etc., used in the specification and claims are only for the purpose of distinguishing the description of the same technical features and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated, nor necessarily the order of description or chronological sequence. Where appropriate, the terms are interchangeable. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0043] Similarly, the term "connection" is used in the specification and claims and should not be construed as limited to a direct connection. Therefore, the expression "device A is connected to device B" should not be limited to device A being directly connected to device B in a device or system; it means that there is a path between device A and device B, which can be a path that includes other devices or tools.

[0044] This embodiment provides an adjustable height foot-operated elastic potential energy press. Please refer to [link / reference]. Figures 1-4 It includes a bracket 1, a clamping device 2, a pressing component 3, and a driving mechanism 4.

[0045] Please see Figure 1 , Figures 5-8 The clamping device 2 is disposed on the side wall of the bracket 1, specifically on the lower side wall of the bracket 1. The clamping device 2 is used to clamp a press-type container containing liquid (e.g., a hand sanitizer pump bottle). Please refer to [link / reference]. Figure 5 The clamping device 2 includes a support base 21 and several clamping flaps 22. The outer side of the support base 21 is connected to the side wall of the lower end of the bracket 1. The several clamping flaps 22 are evenly distributed on the outer side of the support base 21, and the distance between the clamping flaps 22 and the outer side of the support base 21 is elastically adjustable. A press-type container filled with liquid is placed on the support base 21, and the press-type container filled with liquid is clamped by the several clamping flaps 22 distributed on the outer side of the support base 21.

[0046] As a specific embodiment, three clamping flaps 22 are evenly arranged on the outer side of the support 21. Please refer to... Figure 6 and Figure 8The support base 21 includes a lower base plate 211, a surrounding plate 212, and an upper cover plate 213. The surrounding plate 212 is disposed on the outer edge of the lower base plate 211 and encloses the lower base plate 211 to form a cavity; a support column 214 is provided in the middle of the lower base plate 211 within the cavity; the upper cover plate 213 is disposed above the surrounding plate 212 and is specifically fastened together. Please refer to [link / reference]. Figure 7 Each clamping flap 22 includes a flap 221, a fixing block 222, and a first elastic element 223. See 5- Figure 8 The flaps 221 are located on the outer side of the enclosure 212 and protrude upward from the upper cover 213 to form a cavity for clamping a press-type container filled with liquid. A fixing block 222 is located on the inner side of the flaps 221 and passes through the enclosure 212 and is connected to the support column 214 via a first elastic member 223. With this design, when the flaps 221 are pulled outward, they move outward under the elastic action of the fixing block 222 and the first elastic member 223 (which is stretched at this time). Then, the press-type container filled with liquid is placed on the upper cover 213 of the support seat 21. When the flaps 221 are released, they move inward under the action of the first elastic member 223 (which rebounds at this time) and the fixing block 222. Multiple clamping flaps 221 together clamp the press-type container filled with liquid from the outside. Through the above design, by pulling the flap 221, different sizes of liquid-filled press containers can be clamped to meet different installation requirements. In the embodiment, the first elastic element 223 is a spring. The clamping device of this embodiment adopts a linkage structure of three sets of springs (first elastic element 223) - fixed block 222 - flap 221. The three independently sliding flaps 221 adaptively contract under the action of spring pre-tension, which can stably clamp liquid-filled press containers with a circular or near-circular cross section (e.g., hand sanitizer press bottles). Its core advantages are: (1) Dynamic adaptability, the independent sliding stroke of the flap 221 ensures uniform force on liquid-filled press containers of different sizes, avoiding single-point stress concentration; (2) Quick operation, the pre-compression design of the spring (first elastic element 223) realizes "insertion and clamping"; (3) Compatibility, supports liquid-filled press containers with diameters of 60-90mm, 100-120mm or other diameter ranges as needed.

[0047] Please participate Figures 9-11 The pressing assembly 3 includes a housing 31, a pressing frame 32, a pressing block 33, a return spring 34, a driven frame 35, and an energy storage spring 36. Please refer to [link / reference]. Figure 2 and Figure 9 The housing 31 is height-adjustably mounted on the bracket 1 and positioned above the clamping device 2. In this embodiment, please refer to... Figure 9 and Figure 10The housing 31 includes a height adjustment part 311 and a protrusion 312. The height adjustment part 311 is fitted onto the upper end of the bracket 1 and is height-adjustable relative to the bracket 1. The protrusion 312 is integrally connected to the height adjustment part 311 and protrudes to one side relative to the height adjustment part 311. The protrusion 312 is located above the clamping device 2. The height adjustment part 311 and the protrusion 312 have a connected spatial structure inside.

[0048] Please see Figure 9 and Figure 10 The height adjustment part 311 has a screw hole 3111 on its side wall, and a screw adjustment component 37 is provided on the screw hole 3111. The height position of the height adjustment part 311 on the upper end of the bracket 1 is adjusted by loosening or tightening the screw adjustment component 37, thereby realizing height adjustment. The screw adjustment component 37 is a common height adjustment structure, which will not be described in detail here. With this design, the user only needs to manually loosen the screw adjustment component 37 to allow the pressing component 3 to slide freely along the height bracket 1, which can adapt to different heights of liquid-filled pressing containers (e.g., common 180-220mm, 220-240mm, and 300-350mm models of hand sanitizer pressing bottles), solving the usability problem caused by the height difference of different liquid-filled pressing containers. It is convenient to operate and requires no additional work.

[0049] In this embodiment, please refer to Figure 9 and Figure 10 The housing 31 is a detachable housing 31, including a housing body 313 and a housing cover 314; both the housing body 313 and the housing cover 314 are provided with corresponding height adjustment parts 311 and protrusions 312. An internal space is formed between the housing body 313 and the housing cover 314.

[0050] Please see Figure 11 The pressing frame 32 is movably mounted on the housing (specifically, it is located above the protrusion 312 near the clamping device 2). The upper end of the pressing frame 32 is located inside the housing 31 (specifically, inside the protrusion 312), and the lower end extends downward through the housing 31 (specifically, through the protrusion 312). The pressing block 33 is fixedly mounted on the lower end of the pressing frame 32 and is located directly above the clamping device 2. The return spring 34 is located inside the housing 31 (specifically, inside the protrusion 312) and sleeved on the pressing frame 32, located between the upper end of the pressing frame 32 and the housing 31 (specifically, the location where the pressing frame 32 protrudes through the protrusion 312). The driven frame 35 and the energy storage spring 36 are located inside the housing 31 (specifically, inside the protrusion 312). The driven frame 35 is located above the pressing frame 32, and the energy storage spring 36 is located between the driven frame 35 and the pressing frame 32.

[0051] Specifically, please refer to Figure 12The driven frame 35 includes a driven connecting portion 351 and two limiting rods 352; the two limiting rods 352 are spaced apart and one end of each limiting rod 352 is vertically disposed below the driven connecting portion 351. The driven frame 35 also includes a sleeve rod 353, one end of which is vertically disposed below the driven connecting portion 351, and the sleeve rod 353 is located between the two limiting rods 352.

[0052] Please see Figure 12 and Figure 9 The pressing frame 32 includes a pressing connecting part 321 and two connecting rods 322. The two connecting rods 322 are spaced apart, and one end of each connecting rod 322 is vertically disposed below the pressing connecting part 321. The pressing connecting part 321 is provided with vertical limiting grooves 323 that penetrate into the interior of the two connecting rods 322 (but not to the other end of the connecting rods 322). The pressing connecting part 321 is also provided with limiting through holes 324 that penetrate the pressing connecting part 321 and are located in the two limiting grooves 323. The other ends of the two limiting rods 352 of the driven frame 35 are movably disposed in the two limiting grooves 323; the other end of the sleeve rod 353 of the driven frame 35 is movably disposed in the limiting through holes 324. An energy storage spring 36 is sleeved on the sleeve rod 353 and positioned between the driven connection part 351 and the pressing connection part 321. The two ends of the energy storage spring 36 abut against the lower part of the driven connection part 351 and the upper part of the pressing connection part 321, respectively. The other ends of the two connecting rods 322 of the pressing frame 32 protrude from the housing 31 (specifically, through the protrusion 312). The pressing block 33 is fixed to the other ends of the two connecting rods 322. Two return springs 34 are provided, each sleeved on one of the two connecting rods 322. The two ends of each return spring 34 abut against the lower part of the pressing connection part 321 and the housing 31 (specifically, the protrusion 312 through which the two connecting rods 322 protrude).

[0053] In this embodiment, please refer to Figure 12 The pressing block 33 is provided with a fixing groove 331 corresponding to the other end of the two connecting rods 322; the other ends of the two connecting rods 322 are respectively inserted into the fixing groove 331 for fixation. In this embodiment, the pressing block 33 is made of highly elastic rubber material. Through its excellent deformation recovery characteristics, it can adaptively conform to the pressing head of the liquid-filled pressing container of different geometric shapes (such as the hand sanitizer pressing head), ensuring uniform force during the pressing process. In this embodiment, the pressing block 33 has a Shore hardness of 40A and a deformation of ≥15mm, making it suitable for common pressing heads such as spherical and cylindrical shapes.

[0054] Please see Figure 2 and Figure 11The drive mechanism 4 includes a foot pedal 41 and a connecting assembly 42. One end of the connecting assembly 42 is connected to the foot pedal 41, and the other end is connected to the driven frame 35 (specifically, the middle part of the driven connection portion 351 of the driven frame 35). When a force is applied to move the foot pedal 41 downward, the connecting assembly 42 can drive the driven frame 35 to move downward and compress the energy storage spring 36. After the compression of the energy storage spring 36 reaches a critical point, it pushes the pressing frame 32 to drive the pressing block 33 downward and compress the return spring 34.

[0055] In this embodiment, please refer to Figure 1 and Figure 13 A fixing frame 5 is also fixedly installed at the lower end of the bracket 1. The fixing frame 5 is used to fix the bracket 1 to the workbench.

[0056] Specifically, as a specific solution in this embodiment, please refer to... Figure 14 The mounting bracket 5 is used to fix the support to the outside of a worktable with a flat, thick structure (thickness ≤ 35mm). Please refer to [link / reference]. Figure 13 and Figure 14 The fixing frame 5 includes a first fixing part 51, a second fixing part 52, a third fixing part 53, and a spiral fixing member 54. The first fixing part 51 is horizontally disposed at the lower end of the support 1. One end of the second fixing part 52 is vertically disposed at the other end of the second fixing part 52 and extends downward. The third fixing part 53 is disposed parallel to the first fixing part 51 and is vertically disposed at the other end of the second fixing part 52. The first fixing part 51 and the third fixing part 53 are located on the same side of the second fixing part 52. The third fixing part 53 is provided with a vertically penetrating threaded hole (not shown in the figure). The spiral fixing member 54 is disposed on the threaded hole. When the fixing frame 5 is fixed to the outside of a worktable with a flat layer thickness structure (thickness ≤ 35 mm), the first fixing part 51 and the third fixing part 53 are located above and below the worktable, respectively. The second fixing part 52 is located on the outside of the worktable and is fixed by the spiral fixing member 54 spirally abutting against the bottom of the worktable. The above design enables quick clamping on a worktable with a flat layer thickness structure (thickness ≤ 35 mm). In this embodiment, the spiral fastener 54 includes a bolt 541 (specifically, a hexagonal bolt M10 in this embodiment). The screw fastener 54 has a 50mm diameter bolt (541mm) and a horizontally positioned fixing plate 542 on top of the bolt 541. The bolt 541 is located within a threaded hole. The top of the fixing plate 542 has raised textures 543. With this design, when installed on a workbench, the fixing plate 542 on the screw fastener 54 abuts against the bottom of the workbench. The raised textures 543 on the top of the fixing plate 542 increase the stability of the fixing plate 542 when it abuts against the bottom of the workbench. This embodiment, through its installation and fixing method, allows for rapid installation on a workbench with a flat, thick structure (thickness ≤ 35mm) by rotating the bolt 541 of the screw fastener 54 with a wrench during installation, thereby driving the fixing plate 542 to generate a linear clamping force.

[0057] In this embodiment, please refer to Figure 13 The foot pedal 41 includes a pedal 411 and a pedal base 412; one end of the pedal 411 is hinged to the pedal base 412 via a pedal pivot 413, and the other end is connected to the connecting assembly 42.

[0058] In this embodiment, please refer to Figure 13 and Figure 11 The connecting assembly 42 includes a rope 421, several guide wheels 422, a drive rod 423, and a connecting rod 424. The drive rod 423 and the connecting rod 424 are disposed within the housing 31 (specifically, as protrusions 312). The middle portion of the drive rod 423 is hinged within the housing 31 (specifically, as protrusions 312). One end of the drive rod 423 is hinged to one end of the connecting rod 424, and the other end of the connecting rod 424 is hinged to the upper end of the driven frame 35 (specifically, the middle portion of the driven connecting part 351). The pedal 411 is disposed below the fixed frame 5 to facilitate the mounting of the fixed frame on the workbench, and the foot pedal 41 is located below the workbench for easy stepping. One end of the rope 421 is connected to the other end of the pedal 411, and it movably passes through the interior of the fixed frame 5 and the support 1 to the interior of the housing 31 via several guide wheels 422. The other end of the rope 421 is connected to the other end of the drive rod 423.

[0059] Specifically, please refer to Figure 14 The first fixing part 51 of the fixing frame 5 is provided with a horizontally arranged rope channel 511. Please refer to [link / reference]. Figure 13 Guide wheels 422 are respectively provided at both ends of the rope channel 511 of the first fixing part, one end of which ( Figure 13 The guide wheel 422 at the left end is used to guide the rope 421 from the outer guide rope channel 511, and the other end ( Figure 13 The guide wheel 422 (on the right end) is used to guide the rope 421 from the rope channel 511 into the bracket 1. (See also...) Figure 11The pressing assembly 3 has two guide wheels 422 inside its housing 31. One guide wheel 422 (located at the connection between the height adjustment part 311 and the protrusion 312) guides the rope 421 from the upper end of the bracket 1 into the upper part of the protrusion 312 inside the housing 31. The other guide wheel 422 (located above the drive rod) guides the rope 421 from the upper part of the protrusion 312 inside the housing 31 to the other end of the drive rod 423. Additionally, the pressing assembly 3 has multiple rope guide fixing members 38 inside its housing 31 to limit the path of the rope 421 and improve the stability of the rope transmission. This design allows the rope to slide along a predetermined path, effectively reducing frictional resistance, improving transmission efficiency, reducing wear, and extending service life. In this embodiment, each guide wheel 422 is made of nylon and has a diameter of 20mm, which can reduce the rope friction coefficient to below 0.1 and improve transmission efficiency by 92%.

[0060] In this embodiment, please refer to Figure 13 and Figure 14 A boss 521 is provided on the outer surface of the fixing bracket 5, specifically, a boss 521 is provided on the outer side of the second fixing part 52. Please refer to [link / reference]. Figure 16 The other end of the pedal 411 is provided with a connecting hole 411. Depending on actual needs, one end of the rope 421 can pass through the connecting hole 411 and be locked to the other end of the pedal 411. Alternatively, one end of the rope 421 can pass through the connecting hole 411 and extend to the boss 521, where its end can be wrapped and stored. This design allows for easy adaptation to workbenches of different heights by freely adjusting the rope length, achieving rapid matching and precise positioning; excess rope is wrapped and stored on the boss for convenient storage.

[0061] In this embodiment, the rope between the pedal 411 and the rope channel 511 of the fixing frame 5 is divided into two segments, and a loop-shaped rope connector 4211 is provided between the two segments. This allows for the replacement of ropes of different lengths according to the different heights between the pedal 411 and the fixing frame 5, resulting in a more suitable fit.

[0062] The adjustable height foot-operated elastic potential energy press of this embodiment, when in operation:

[0063] The device is fixed to the workbench by the mounting bracket 5, and the foot pedal 41 is positioned below the workbench for easy footing by the user. The liquid-filled pump container (e.g., a hand sanitizer pump bottle) is clamped in the center area of ​​the three clamping flaps 22. Then, the height of the housing 31 of the pressing assembly 3 is adjusted according to the height of the liquid-filled pump container (e.g., a hand sanitizer pump bottle) so that the pressing block 33 of the pressing assembly 3 is close to (or slightly in contact with) the pressing head of the liquid-filled pump container (e.g., the pressing head of a hand sanitizer pump bottle) directly above it.

[0064] When the user presses down on pedal 411, the drive rod 423 rotates under the action of components such as rope 421 and guide wheel 422. This drives the connecting rod 414 to push the driven frame 35 vertically downward. The downward movement of the driven frame compresses the energy storage spring 36, storing elastic potential energy. When the compression of the energy storage spring 36 reaches a critical point, its elastic force balances with the liquid resistance in the press-type container (e.g., a hand sanitizer pump). At this point, the press frame 32 pushes the press block down with a constant pressure 33, compressing the return spring 34, thus dispensing a measured amount of liquid (e.g., hand sanitizer) from the press-type container. When the user releases pedal 411, the return spring 34 resets all components.

[0065] This embodiment of an adjustable-height foot-operated elastic potential energy dispenser utilizes an innovative mechanical structure to achieve a foot-driven, elastic potential energy conversion, and stable press output solution for hand sanitizer dispensing, effectively addressing three core issues: public health, compatibility, and operational efficiency. It employs a three-stage transmission mechanism: foot pedal → spring → liquid pressure. The drive rod converts the kinetic energy of the foot pedal into precise compression of the energy-storing spring. Combined with a guide wheel friction-reducing design, it dynamically balances fluid resistance, ensuring a dispensing volume error of ≤±5%. The clamping device automatically adapts to 60-120mm diameter press-type containers through a linkage structure of the clamping flaps, evenly distributing clamping force. Combined with the pre-compression technology of the first elastic element, it achieves "instant fixation upon placement." The user-friendly design includes tool-free adjustment: the press component's housing is height-adjustable (adapting to bottle heights of 180-350mm), the mounting bracket is compatible with workbenches ≤35mm thick, and it features freely adjustable ropes and a modular, detachable structure for easy cleaning and maintenance. In terms of application scenarios, this solution significantly reduces the risk of cross-infection in public places such as hospitals and shopping malls, while meeting the needs of families for multiple sizes of replacement packs. It supports refilling to reduce plastic waste and combines hygiene (contactless dispensing), compatibility (covering 99% of commercially available products), and environmental benefits, achieving a unity of engineering practicality and social value.

[0066] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. An adjustable height foot-operated elastic potential energy press, characterized in that: Includes a bracket, clamping device, pressing assembly, and drive mechanism; The clamping device is disposed on the side wall of the bracket, and the clamping device is used to clamp a press-type container containing liquid. The pressing assembly includes a housing, a pressing frame, a pressing block, a return spring, a driven frame, and an energy storage spring. The housing is height-adjustably mounted on the bracket and located above the clamping device. The pressing frame is vertically movably mounted on the housing, with its upper end inside the housing and its lower end extending downwards through the housing. The pressing block is fixedly mounted on the lower end of the pressing frame and located directly above the clamping device. The return spring is mounted inside the housing and sleeved on the pressing frame, located between the upper end of the pressing frame and the housing. The driven frame and the energy storage spring are mounted inside the housing, with the driven frame positioned above the pressing frame and the energy storage spring positioned between the driven frame and the pressing frame. The drive mechanism includes a foot pedal and a connecting component, one end of which is connected to the foot pedal and the other end of which is connected to the driven frame; When a force is applied to move the foot pedal downwards, the driven frame moves downwards through the connecting assembly, and the energy storage spring is compressed until the compression of the energy storage spring reaches a critical point. Then, the pressing frame is pushed to move the pressing block downwards, and the reset spring is compressed.

2. The adjustable height foot-operated elastic potential energy press according to claim 1, characterized in that: The clamping device includes a support base and a plurality of clamping flaps; one side of the support base is connected to the side wall of the lower end of the bracket; the plurality of clamping flaps are evenly arranged on the outer side of the support base, and the distance between the plurality of clamping flaps and the outer side of the support base is elastically adjustable.

3. The adjustable height foot-operated elastic potential energy press according to claim 2, characterized in that: The support includes a lower base plate, a surrounding plate, and an upper cover plate; the surrounding plate is disposed on the outer edge of the lower base plate and encloses a cavity; a support column is provided in the middle of the lower base plate within the cavity; the upper cover plate is disposed above the surrounding plate; each clamping flap includes a flap, a fixing block, and a first elastic element; the flap is disposed on the outer side of the surrounding plate and protrudes upward from the upper cover plate; the fixing block is disposed on the inner side of the flap, and the fixing block passes through the surrounding plate and is connected to the support column through the first elastic element.

4. The adjustable height foot-operated elastic potential energy press according to claim 1, characterized in that: The lower end of the bracket is also fixedly provided with a fixing frame, which is used to fix the bracket to the workbench.

5. The adjustable height foot-operated elastic potential energy press according to claim 4, characterized in that: The fixing frame is used to fix the support to the outside of the workbench with a flat-layer thickness structure. The fixing frame includes a first fixing part, a second fixing part, a third fixing part, and a spiral fixing member. The first fixing part is horizontally disposed at the lower end of the support. One end of the second fixing part is vertically disposed at one end of the second fixing part and extends downward. The third fixing part is parallel to the first fixing part and is vertically disposed at the other end of the second fixing part. The third fixing part has a vertically penetrating threaded hole. The spiral fixing member is disposed on the threaded hole. When the fixing frame is fixed to the outside of the workbench with a flat-layer thickness structure, the first fixing part and the third fixing part are respectively located above and below the flat-layer thickness structure of the workbench. The second fixing part is located on the outside of the flat-layer thickness structure of the workbench and is fixed by the spiral fixing member spirally abutting against the bottom of the flat-layer thickness structure of the workbench.

6. The adjustable height foot-operated elastic potential energy press according to claim 5, characterized in that: The spiral fastener includes a bolt and a fixing plate horizontally disposed on the top of the bolt; the bolt is disposed in the threaded hole; the top of the fixing plate is provided with raised texture.

7. The adjustable height foot-operated elastic potential energy press according to claim 1, characterized in that: The driven frame includes a driven connecting part and two limiting rods; the two limiting rods are spaced apart and one end of each limiting rod is vertically disposed below the driven connecting part; the pressing frame includes a pressing connecting part and two connecting rods, the two connecting rods are spaced apart and one end of each connecting rod is vertically disposed below the pressing connecting part; the pressing connecting part is provided with limiting grooves corresponding to the two limiting rods and penetrating into the interior of the two connecting rods; the other end of each limiting rod is movably disposed within the two limiting grooves; the energy storage spring is disposed between the driven connecting part and the pressing connecting part, and the two ends of the energy storage spring abut against the lower part of the driven connecting part and the upper part of the pressing connecting part, respectively; the other end of each connecting rod protrudes from the housing; the pressing block is fixed to the other end of each connecting rod; two return springs are provided, and the two return springs are respectively sleeved on the two connecting rods, and the two ends of each return spring abut against the lower part of the pressing connecting part and the housing, respectively.

8. The adjustable height foot-operated elastic potential energy press according to claim 1, characterized in that: The housing includes a height adjustment part and a protrusion; the height adjustment part is fitted onto the upper end of the bracket and is height-adjustable relative to the bracket; the protrusion is integrally connected to the height adjustment part and protrudes to one side relative to the height adjustment part; the protrusion is located above the clamping device.

9. The adjustable height foot-operated elastic potential energy press according to claim 4, characterized in that: The foot pedal includes a pedal and a pedal base; one end of the pedal is hinged to the pedal base via a pedal pivot, and the other end is connected to the connecting assembly; the connecting assembly includes a rope, several guide wheels, a drive rod, and a connecting rod; the drive rod and the connecting rod are disposed within the housing; the middle part of the drive rod is hinged within the housing; one end of the drive rod is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the upper end of the driven frame; the pedal is disposed below the fixed frame, one end of the rope is connected to the other end of the pedal, and movably passes through the interior of the fixed frame, the interior of the bracket, and into the interior of the housing via several guide wheels, and the other end of the rope is connected to the other end of the drive rod.

10. The adjustable height foot-operated elastic potential energy press according to claim 9, characterized in that: The mounting bracket is provided with a boss, which is used to wrap and store ropes.

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