Free strain type can holding mechanism of garbage can weighing wagon balance

Abstract

The utility model relates to a free strain type can embracing mechanism of a garbage can weighing wagon balance, which comprises hoop arms symmetrically arranged at two ends of a back frame on a supporting plate seat, the hoop arms extend above a weighing plate on the supporting plate seat, each hoop arm comprises a rear arm and a front arm, the rear arms are connected with the back frame through a first sliding structure, and the front arms are connected with the back frame through a second sliding structure. The rear arm is driven by the first sliding structure to move oppositely or oppositely relative to the other hoop arm, the front arm is connected with the rear arm through a second sliding structure, and the front arm is driven by the second sliding structure to move oppositely or oppositely relative to the rear arm. According to the technical scheme, the can holding mechanism replaces an integrated hoop arm with the hoop arms adjustable in position and length, the hoop arms can be matched with garbage cans of any size when the garbage cans are weighed through the relative or opposite movement of the two hoop arms and the relative or opposite movement of the front arm and the rear arm of each hoop arm, stable limiting is provided, and the garbage cans of any size can be weighed. And therefore, the weighed garbage can is effectively prevented from rolling over and slipping off.

Description

Technical Field

[0001] The utility model relates to the technical field of floor scales, and more specifically to a free-strain type garbage bin holding mechanism for a garbage bin weighing floor scale. Background Art

[0002] The trash can weighing scale is a device used to weigh the trash in outdoor trash cans. It can accurately measure the weight of the trash so as to classify and process the trash. The Chinese patent with publication number CN211401397U and patent name "Intelligent Trash Can Weighing Scale" discloses a trash can weighing scale including a scale body provided with a weighing sensor. The scale body adopts an upper and lower suspended structure. The lower structure is composed of a keel structure. Protective bolts located on the surface of the circumferential keel are arranged at the four corners near the lower structure, and a balancing base is arranged at the bottom of the circumferential keel; the scale body has an upper structure arranged parallel to the lower structure, and the upper structure includes a keel unit and a steel plate structure arranged on the keel unit. A weighing sensor located between the upper structure and the lower structure is arranged in the middle position of the scale body; blocking parts are arranged on the left edge, right edge and front edge of the steel plate structure.

[0003] When weighing a trash can, the above-mentioned weighing scale supports the trash can through the steel plate structure arranged on the keel unit of the upper structure. However, after the trash can is placed, the trash can can only be limited by the blocking parts on the left edge, right edge and front edge of the steel plate structure. Overall, the blocking parts are relatively low and narrow, which makes the trash can with a higher height prone to tipping over during weighing. In this regard, our company applied for a utility model patent on April 13, 2023 and was authorized on August 11, 2023 with announcement number CN219511665U. The patent name is "A trash can weighing scale for garbage room", which discloses a floor scale with a bucket holding mechanism that can limit the weighed trash can in multiple directions. Specifically, the floor scale is provided on the rear side of the support plate seat and connected to both ends of the back frame and extends above the weighing plate on the support plate seat. The trash can on the weighing plate is tightly held by two holding hoop arms, and the back frame is cooperated to achieve multi-directional limitation of the trash can.

[0004] However, the following problem is still found in actual use, that is, the trash can weighing scale with the above structure can only be used for weighing a single type of trash can, because the length of each hoop arm and the distance between the two hoop arms cannot be adjusted, resulting in a constant size of the space above the weighing plate surrounded by the back frame and the two hoop arms. Larger trash cans cannot be moved into the space, while smaller trash cans are difficult to be clamped by the hoop arms and are easy to slip off the weighing plate. Utility Model Content

[0005] In view of the above situation, in order to overcome the problem that the trash can weighing scale without a bucket holding mechanism in the above-mentioned prior art is prone to tipping over when weighing the trash can, and the trash can weighing scale with a bucket holding mechanism has a space enclosed by a back frame and two holding hoop arms that cannot be adjusted, resulting in the problem that it can only be used to weigh trash cans of a single size, the purpose of the utility model is to provide a bucket holding mechanism for a trash can weighing scale which can firmly limit the position of trash cans of any size during weighing, thereby effectively preventing the weighed trash can from tipping over and slipping.

[0006] In order to achieve the above purpose, the technical solution of the utility model is:

[0007] A free-strain bin-holding mechanism for a trash bin weighing scale comprises clamping arms symmetrically arranged at both ends of a back frame on a support plate seat, the clamping arms extend above a weighing plate on the support plate seat, the clamping arms comprise a rear arm and a front arm, the rear arm is connected to the back frame via a first sliding structure, the rear arm is driven by the first sliding structure to move relative to or away from the other clamping arm, the front arm is connected to the rear arm via a second sliding structure, the front arm is driven by the second sliding structure to move relative to or away from the rear arm.

[0008] Preferably, the first sliding structure includes a first guide groove, a first adjustment hole and a first adjusting member, the first guide groove and the first adjustment hole are respectively opened on the rear arm and the back frame, and are kept relative to each other up and down, and the first guide groove is arranged along the lateral direction of the rear arm, one end of the first adjusting member passes through the first guide groove to the first adjustment hole and is connected to it, and the other end of the first adjusting member abuts against the rear arm on the peripheral side of the first guide groove.

[0009] Preferably, the first adjusting member is a threaded fastener or a latch.

[0010] Preferably, the second sliding structure includes a second guide groove, a second adjustment hole and a second adjusting member, the second guide groove and the second adjustment hole are respectively opened on the forearm and the rear arm, and are kept relative to each other front and back, and the second guide groove is arranged along the length direction of the forearm, one end of the second adjusting member passes through the second guide groove to the second adjustment hole and is connected to it, and the other end of the second adjusting member abuts against the forearm on the periphery of the second guide groove.

[0011] Preferably, the second adjusting member is a threaded fastener or a latch.

[0012] Preferably, the forearm is provided with a limiting groove along its length direction, the forearm is sleeved on the rear arm through the limiting groove, and the vertical projection surface of the limiting groove and the rear arm at the matching position is non-circular.

[0013] Preferably, the rear arm comprises an inner arm body and an outer arm body, the first guide groove and the second adjustment hole are respectively provided on the inner arm body and the outer arm body, and the inner arm body and the outer arm body are hinged via a first rotating pin.

[0014] Preferably, a torsion spring is sleeved on the first rotating pin, and two ends of the torsion spring are respectively connected to the inner arm body and the outer arm body.

[0015] Preferably, one end of the forearm facing away from the rear arm is rotatably hinged with a roller via a second rotating pin.

[0016] Compared with the prior art, the advantages of the utility model are:

[0017] The utility model replaces the integrated clamp arm with a clamp arm whose position and length are adjustable, and the rear arms and the connected forearms of the two clamp arms are moved relative to or away from each other through a first sliding structure to expand the spacing, and the forearm and the rear arm of each clamp arm are moved relative to each other through a second sliding structure to extend or reduce the length, thereby realizing flexible change of the placement space size between the two clamp arms, the back frame and the weighing plate below according to the size of the trash can to be weighed, ensuring that each trash can to be weighed can be firmly restricted on the weighing plate by the clamp arms and the back frame, effectively preventing the trash can to be weighed from tipping over and slipping off, and meeting the weighing requirements of trash cans of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the barrel holding structure of the utility model;

[0019] Figure 2 This utility model Figure 1 A schematic diagram of the enlarged structure of part A;

[0020] Figure 3 It is a schematic diagram of the overall structure of the rear arm of the barrel holding hoop arm of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the barrel holding structure of the utility model when the hoop arm is disassembled;

[0022] Figure 5 It is a schematic diagram of the overall structure of the barrel holding structure of the utility model after the position and length of the hoop arm are adjusted, and the outer arm body of the rear arm and the forearm are abducted.

[0023] As shown in the figure:

[0024] 1. Back frame; 101. First adjustment hole; 2. Hoop arm; 21. Rear arm; 211. Inner arm body; 211a. First guide groove; 212. Outer arm body; 212a. Second adjustment hole; 22. Forearm; 221. Second guide groove; 222. Limiting groove; 3. First adjustment member; 4. Second adjustment member; 5. First rotating pin; 6. Torsion spring; 7. Second rotating pin; 8. Roller. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of simplifying the description, and do not indicate or imply that the directions are specific directions that must be possessed and specific directions, structures, and operations, and therefore should not be understood as limitations on the present utility model.

[0027] like Figure 1 as well as Figures 3 to 5 As shown, the utility model relates to a free strain type bin holding mechanism for a trash can weighing scale, which comprises two holding hoop arms 2, which are symmetrically arranged at the two ends of a back frame 1 on a support plate seat, and the holding hoop arms 2 extend to above the weighing plate on the support plate seat, and the two holding hoop arms 2 and the back frame 1 form a concave shape with an opening on one side, and the space in the middle of the concave shape opposite to the weighing plate below is a placement space for the trash can. It should be mentioned that this is a prior art directly obtained from an existing trash can weighing scale, so the specific structure of the support plate seat, the weighing plate and the back frame 1 will not be described in detail. In particular, the holding hoop arm 2 in the utility model comprises a rear arm 21 and a front arm 22. It can be understood that the rear arm 21 and the front arm 22 are arranged relative to each other front and back, the rear arm 21 is connected to the back frame 1 by a first sliding structure, and the rear arm 21 is driven by the first sliding structure to move relative to or away from the other holding hoop arm 2, and the spacing between the two holding hoop arms 2 is relatively and When the two hoops are moved in opposite directions, the front arm 22 and the rear arm 21 are connected to each other, and the front arm 22 is connected to the rear arm 21 by the second sliding structure. The front arm 22 is driven by the second sliding structure to move relative to or away from the rear arm 21. When moving, the overall length of the hoop arm 2 changes. The utility model replaces the integrated hoop arm 2 with a hoop arm 2 whose position and length can be adjusted. The rear arms 21 and the connected forearms 22 of the two hoop arms 2 are moved relative to or away from each other through the first sliding structure to expand the spacing. The forearm 22 and the rear arm 21 of each hoop arm 2 can be moved relative to each other through the second sliding structure to extend or reduce the length. According to the size of the trash can to be weighed, the size of the placement space between the two hoop arms 2 and the back frame 1 and the weighing plate below can be flexibly changed, ensuring that each trash can to be weighed can be firmly restricted on the weighing plate by the hoop arm 2 and the back frame 1, effectively preventing the weighed trash can from tipping over and slipping, and meeting the weighing requirements of trash cans of different sizes.

[0028] like Figure 1 as well as Figures 3 to 5As shown, the first sliding structure includes a first guide groove 211a, a first adjustment hole 101 and a first adjustment member 3, wherein the first guide groove 211a and the first adjustment hole 101 are respectively opened on the rear arm 21 and the back frame 1, and are kept opposite to each other up and down, and the first guide groove 211a is arranged along the lateral direction of the rear arm 21, one end of the first adjustment member 3 passes through the first guide groove 211a to the first adjustment hole 101, and the other end of the first adjustment member 3 abuts on the rear arm 21 around the first guide groove 211a, and the pressure of the head of the first adjustment member 3 is used to tightly abut the rear arm 21 with the back frame 1, so that the rear arm 21 and the back frame 1 are kept in a relatively fixed state, and when the pressure applied by the head of the first adjustment member 3 on the rear arm 21 is removed, the rear arm 2 1 can move relative to the back frame 1, and under the limiting action of the first adjusting member 3 and the guiding action of the first guide groove 211a, the hoop arm 2 can move relative to and away from the other hoop arm 2. Based on the above arrangement, the relative and away movement of the two hoop arms 2 is realized by rotating the first adjusting member 3 of the first sliding structure. The rotation control action is simple, and the quick adjustment of the distance between the two hoop arms 2 can be realized. It should be mentioned that the number of the first adjusting hole 101 and the connected first adjusting member 3 is two. The setting of the two first adjusting members 3 increases the support points between the rear arm 21 and the back frame 1, thereby preventing the rear arm 21 from rotating when moving relative to the back frame 1, ensuring that the two hoop arms 2 can always maintain the relative or away movement, and improving the fixing stability.

[0029] Furthermore, the first adjusting member 3 is a threaded fastener or a latch pin, the threaded fastener is connected to the first adjusting hole 101 through a screw rod section, the latch pin is connected to the first adjusting hole 101 through an insertion rod section, and abuts against the rear arm 21 on the peripheral side of the first guide groove 211a through a head section.

[0030] like Figures 1 to 5As shown, the second sliding structure includes a second guide groove 221, a second adjustment hole 212a and a second adjustment member 4, wherein the second guide groove 221 and the second adjustment hole 212a are respectively opened on the front arm 22 and the rear arm 21, and keep front and rear relative, and the second guide groove 221 is arranged along the length direction of the front arm 22, one end of the second adjustment member 4 passes through the second guide groove 221 to the second adjustment hole 212a, and the other end of the second adjustment member 4 abuts on the front arm 22 on the side of the second guide groove 221. Similar to the first sliding structure, the second sliding structure also utilizes the second adjustment member 4 and the front side of the second guide groove 221. The tightness of the arm 22 enables the forearm 22 and the rear arm 21 to move relative to or away from each other or maintain a fixed state. Specifically, the pressure of the head of the first adjusting member 3 makes the forearm 22 and the rear arm 21 tightly against each other, thereby maintaining the forearm 22 and the rear arm 21 in a relatively fixed state. When the pressure applied to the forearm 22 by the head of the second adjusting member 4 is removed, the forearm 22 and the rear arm 21 can move relative to or away from each other under the limiting effect of the second adjusting member 4 and the guiding effect of the second guide groove 221, thereby realizing the length adjustment of the clamp arm 2. The setting of the second adjusting member 4 of the second sliding structure enables the length adjustment of the clamp arm 2 to be completed quickly.

[0031] Furthermore, the second adjusting member 3 is a threaded fastener or a latch pin, the threaded fastener is connected to the second adjusting hole 212a through a screw rod section, the latch pin is connected to the second adjusting hole 212a through an insertion rod section, and abuts against the forearm 22 on the peripheral side of the second guide groove 221 through a head section.

[0032] like Figure 4 As shown, the front arm 22 is provided with a limiting groove 222 along its length direction, and the front arm 22 is sleeved on the rear arm 21 through its limiting groove 222, and the vertical projection surface of the limiting groove 222 and the rear arm 21 is non-circular, so that the rear arm 21 is limited by the surrounding side wall of the limiting groove 222 of the front arm 22, which effectively avoids relative or opposite movement between the front arm 22 and the rear arm 21, as well as relative rotation when fixed, ensures that the two clamp arms 2 can always maintain relative or opposite movement, and improves the stability of fixation.

[0033] like Figure 1 as well as Figures 3 to 5As shown, the rear arm 21 includes an inner arm body 211 and an outer arm body 212, a first guide groove 211a and a second adjustment hole 212a are respectively provided on the inner arm body 211 and the outer arm body 212, the inner arm body 211 and the outer arm body 212 are hinged by a first rotating pin 5, the inner arm body 211 and the outer arm body 212 of the rear arm 21 of the two hoop arms 2 can rotate relative to or away from each other through the connected first rotating pin 5, when rotating away from each other, the opening of the concave structure surrounded by the two hoop arms 2 and the back frame 1 is enlarged, and the opening size is restored when rotating towards each other, and then when the opening is enlarged, the trash can that needs to be weighed can be more easily moved onto the weighing plate below, or moved out from the weighing plate, and when the opening size is restored, the two hoop arms 2 can be attached to the outer wall of the trash can to form a hoop state.

[0034] like Figure 1 as well as Figures 3 to 5 As shown, a torsion spring 6 is sleeved on the first rotating pin 5, and two ends of the torsion spring 6 are respectively connected to the inner arm body 211 and the outer arm body 212. The torsion spring 6 is stretched or deformed back in a stretched state when the connected outer arm body 212 rotates inward or outward relative to the inner arm body 211. When a trash can is placed on the weighing plate below the clamp arm 2, the forearms 22 of the two clamp arms 2 will be extended outward by the support force of the outer wall of the trash can, thereby driving the torsion spring 6 to stretch. The elastic force generated by the stretching of the torsion spring 6 makes the clamp arm 2 hold the trash can tightly, thereby realizing the stable placement of the trash can.

[0035] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, one end of the front arm 22 away from the rear arm 21 is rotatably hinged with a roller 8 through a second rotating pin 7, and the rollers 8 on the front arms 22 of the two clamp arms 2 remain relative to each other. Under the pressure of the torsion spring 6, the rollers 8 can be tightly attached to the outer wall of the trash can on the lower weighing plate. The circular roller 8 continues to roll along the outer wall of the trash can when the trash can is moved onto the weighing plate or moved out from the weighing plate, so that the friction between the trash can and the rollers is converted into rolling friction, thereby increasing the speed of moving the trash can.

[0036] Combination Figures 1 to 5 The bin-holding mechanism of the present invention can be adjusted according to the actual size of the trash can to be weighed by rotating the first adjusting member 3 of the first sliding structure and the second adjusting member 4 of the second sliding structure, so that the heads of the first adjusting member 3 and the second adjusting member 4 are respectively separated from the abutment of the rear arm 21 and the front arm 22 of the clamping arm 2, and the two clamping arms 2 can be slid relative to or away from each other, or the front arm 22 and the rear arm 21 of each clamping arm 2 can be slid relative to or away from each other, so as to change the size of the concave shape formed by the two clamping arms 2 and the back frame 1 and the placement space between the lower weighing plate. Under the elastic force of the torsion spring 6, it is ensured that trash cans of various sizes can be clamped by the clamping arm 2 and placed firmly on the lower weighing plate.

[0037] The above embodiments and descriptions are only for explaining the principle and the best embodiment of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements shall fall within the scope of the present invention to be protected.

Claims

1. A free strain type bin holding mechanism for a trash bin weighing scale, comprising holding arms (2) symmetrically arranged at both ends of a back frame (1) on a support plate seat, wherein the holding arms (2) extend above a weighing plate on the support plate seat, and characterized in that: The hoop arm (2) comprises a rear arm (21) and a front arm (22); the rear arm (21) is connected to the back frame (1) via a first sliding structure; the rear arm (21) is driven by the first sliding structure to move relative to or away from the other hoop arm (2); the front arm (22) is connected to the rear arm (21) via a second sliding structure; the front arm (22) is driven by the second sliding structure to move relative to or away from the rear arm (21).

2. The free strain type bin holding mechanism of the trash bin weighing scale according to claim 1 is characterized in that: The first sliding structure comprises a first guide groove (211a), a first adjustment hole (101) and a first adjustment member (3); the first guide groove (211a) and the first adjustment hole (101) are respectively provided on the rear arm (21) and the back frame (1) and are kept opposite to each other in the upper and lower directions; the first guide groove (211a) is arranged along the transverse direction of the rear arm (21); one end of the first adjustment member (3) passes through the first guide groove (211a) to the first adjustment hole (101) and is connected thereto; the other end of the first adjustment member (3) abuts against the rear arm (21) on the peripheral side of the first guide groove (211a).

3. The free strain type bin holding mechanism of the trash bin weighing scale according to claim 2 is characterized in that: The first adjusting member (3) is a threaded fastener or a latch.

4. The free strain type bin holding mechanism of the trash bin weighing scale according to claim 1 is characterized in that: The second sliding structure comprises a second guide groove (221), a second adjustment hole (212a) and a second adjustment member (4); the second guide groove (221) and the second adjustment hole (212a) are respectively arranged on the front arm (22) and the rear arm (21) and are kept opposite to each other front and back; the second guide groove (221) is arranged along the length direction of the front arm (22); one end of the second adjustment member (4) passes through the second guide groove (221) to the second adjustment hole (212a) and is connected thereto; and the other end of the second adjustment member (4) abuts against the front arm (22) on the peripheral side of the second guide groove (221).

5. The free strain type bin holding mechanism of the trash bin weighing scale according to claim 4 is characterized in that: The second adjusting member (4) is a threaded fastener or a latch.

6. The free strain type bin holding mechanism of the trash bin weighing scale according to claim 4 is characterized in that: The front arm (22) is provided with a limiting groove (222) along its length direction, the front arm (22) is sleeved on the rear arm (21) through its limiting groove (222), and the vertical projection surface of the limiting groove (222) and the rear arm (21) at the matching position is non-circular.

7. The free strain type bin holding mechanism of the trash bin weighing scale according to claim 4 is characterized in that: The rear arm (21) comprises an inner arm body (211) and an outer arm body (212); a first guide groove (211a) and a second adjustment hole (212a) are respectively provided on the inner arm body (211) and the outer arm body (212); and the inner arm body (211) and the outer arm body (212) are hingedly connected via a first rotating pin (5).

8. The free strain type bin holding mechanism of the trash bin weighing scale according to claim 7 is characterized in that: A torsion spring (6) is sleeved on the first rotating pin (5), and two ends of the torsion spring (6) are respectively connected to the inner arm body (211) and the outer arm body (212).

9. The free strain type bin holding mechanism of the trash bin weighing scale according to claim 1 is characterized in that: One end of the front arm (22) facing away from the rear arm (21) is rotatably hinged to a roller (8) via a second rotating pin (7).

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