Lifting device for pit and garbage station

Abstract

The lifting device for the pit comprises a supporting platform, a shear fork arm and a telescopic driving piece, the supporting platform comprises a platform body and a fixed side frame arranged on the platform body, and the upper end and the lower end of an outer section arm of the shear fork arm are respectively a first hinged arm section and a first sliding arm section. The upper end and the lower end of the inner knuckle arm are provided with a second sliding arm section and a second hinged arm section respectively, the first hinged arm section and the second hinged arm section are installed on the platform body and the pit foundation in a hinged mode respectively, and the first sliding arm section and the second sliding arm section are arranged on the pit foundation and the platform body in a sliding mode respectively. The lower end of the telescopic driving piece is hinged to the first sliding arm section, and the upper end of the telescopic driving piece is obliquely arranged in the direction away from the shear fork arm and hinged to the fixed side frame, so that when the telescopic driving piece begins to stretch out, the included angle between the telescopic driving piece and the ground can be set to be larger, and the component force in the vertical direction is increased; therefore, a telescopic driving part with larger driving force does not need to be selected.

Description

Technical Field

[0001] The utility model belongs to the technical field of garbage stations, and in particular relates to a lifting device for a pit and a garbage station. Background Art

[0002] The garbage bins in existing pit-type garbage stations are generally placed on scissor-type lifting platforms. After the garbage bins are full of garbage, the scissor-type lifting platform can be controlled to rise so that the garbage bins are exposed from the pit, making it easier to lift the garbage bins and dump the garbage into the carriage of the transfer vehicle. After the empty garbage bins are lifted onto the scissor-type lifting platform, the scissor-type lifting platform can be controlled to descend so that the garbage bins are placed in the pit. However, the lifting cylinders of existing scissor-type lifting platforms are all arranged on the scissor arms. At the beginning of the lifting, the angle between the lifting cylinders and the ground is small, and the vertical force component is small. Therefore, when lifting the same weight, a cylinder with a larger driving force needs to be selected, and the horizontal force component is larger, which also requires higher structural strength, increasing the cost. In addition, the platform cannot be completely folded after it is lowered, which has the problem of occupying a large space. Utility Model Content

[0003] In view of the above-mentioned defects or shortcomings, the utility model provides a lifting device and a garbage station for a pit, aiming to solve the technical problem that the lifting cylinder is arranged on the scissor arm, resulting in the need to select a cylinder with greater driving force.

[0004] To achieve the above-mentioned purpose, the utility model provides a lifting device for a pit in a first aspect, wherein the lifting device for the pit includes a supporting platform, a scissor arm and a telescopic drive member; the supporting platform includes a platform body and a fixed side frame, the platform body is used to place a garbage bin, and the fixed side frame is arranged on the platform body and is located on the side of the garbage bin; the scissor arm includes a cross-hinged outer arm and an inner arm, the outer arm is located on the outer side of the inner arm, and the upper and lower ends of the outer arm are respectively provided as a first articulated arm section and a first sliding arm section, the upper and lower ends of the inner arm are respectively provided as a second sliding arm section and a second articulated arm section, the first articulated arm section and the second articulated arm section are respectively articulated and installed on the platform body and the pit foundation in a one-to-one manner, and the first sliding arm section and the second sliding arm section are respectively and slidably arranged on the pit foundation and the platform body in a one-to-one manner; the lower end of the telescopic drive member is articulated and installed on the first sliding arm section, and the upper end of the telescopic drive member is inclined in a direction away from the scissor arm and articulated and installed on the fixed side frame.

[0005] In the embodiment of the utility model, the inner arm section can be folded and accommodated on the lower side of the platform body, the outer arm section can be folded and accommodated on the side of the platform body, and the telescopic driving member is arranged on the side of the platform body.

[0006] In an embodiment of the utility model, the platform body includes a platform body for placing a trash bin and a first bottom support rod and a second bottom support rod with spaced scissor arms arranged on the lower side of the platform body, an inner section arm is arranged on the lower side of the platform body and can be folded and accommodated between the first bottom support rod and the second bottom support rod, and both ends of the first bottom support rod and the second bottom support rod extend out of the platform body, and an outer section arm is located on the side of the platform body and can be folded and accommodated between the first bottom support rod and the second bottom support rod.

[0007] In an embodiment of the utility model, the first bottom support rod is arranged on the same side as the first sliding arm section, the second bottom support rod is arranged on the same side as the first hinged arm section, the fixed side frame includes a fixed straight rod and a fixed diagonal rod, the fixed straight rod is uprightly arranged at the end of the first bottom support rod extending out of the platform body, the fixed diagonal rod is inclined and connects the upper end of the fixed straight rod and the platform body, and the upper end of the telescopic drive member is hingedly installed at the connecting corner of the fixed straight rod and the fixed diagonal rod.

[0008] In the embodiment of the utility model, a first connection seat is provided at the connection corner of the fixed straight rod and the fixed oblique rod, and the upper end of the telescopic driving member extends to the inner side of the first connection seat and is hingedly mounted on the first connection seat.

[0009] In an embodiment of the utility model, there are two scissor arms, which are arranged in parallel and spaced apart along the width direction of the platform body. There are two telescopic drive members and two fixed side frames, and the two fixed side frames and the two telescopic drive members are respectively arranged in one-to-one correspondence with the two scissor arms.

[0010] In an embodiment of the utility model, the scissors arm also includes a pulley member arranged at the bottom of the first sliding arm section, and a sliding rail member arranged on the pit foundation and forming a first sliding groove. The pulley member is movably arranged in the first sliding groove and can move toward or away from the second articulated arm section. One end of the first sliding groove arranged on the same side as the second articulated arm section is open.

[0011] In an embodiment of the utility model, the support platform also includes a slide seat, the slide seat includes two slide plates relatively spaced apart on the lower side of the platform body, a second sliding groove is formed between the two slide plates, and both slide plates are provided with sliding holes extending in the same direction as the second sliding groove, the second sliding arm section extends into the second sliding groove and can be passed through a connecting shaft member passing through the sliding hole, so that the second sliding arm section can move toward or away from the first hinged arm section.

[0012] In an embodiment of the utility model, the scissors arm also includes a first articulated seat, the first articulated seat includes a fixed base plate and two first articulated side plates, the fixed base plate is fixed on the pit foundation, the two first articulated side plates are relatively spaced apart on the fixed base plate, and a first clamping space for the second articulated arm section to fall over is formed between the two first articulated side plates, the second articulated arm section is placed in the first clamping space and is connected in series with the two first articulated side plates through the first articulated axis.

[0013] To achieve the above-mentioned object, the second aspect of the utility model provides a garbage station, wherein the garbage station includes a garbage bin and the above-mentioned pit lifting device, and the garbage bin is used to be placed on the platform body.

[0014] Through the above technical solution, the pit lifting device provided by the embodiment of the utility model has the following beneficial effects:

[0015] When the above-mentioned pit lifting device is used, since a fixed side frame is provided on the platform body, the upper and lower ends of the outer arm of the scissor arm are respectively provided with a first articulated arm section and a first sliding arm section, and the upper and lower ends of the inner arm are respectively provided with a second sliding arm section and a second articulated arm section, the first articulated arm section and the second articulated arm section are respectively articulated and installed on the platform body and the pit foundation in a one-to-one correspondence, the first sliding arm section and the second sliding arm section are respectively slidably provided on the pit foundation and the platform body in a one-to-one correspondence, the lower end of the telescopic driving member is articulated and installed on the first sliding arm section, and the upper end of the telescopic driving member (oil cylinder) is inclined in a direction away from the scissor arm and articulated and installed on the fixed side frame, so that the telescopic driving member When the upper end of the moving part is extended, the platform body can be pushed up to extend the scissor arms, and when the lower end of the telescopic driving part is retracted, the platform body can be pulled down to fold the scissor arms. At the same time, the upper and lower ends of the telescopic driving part are respectively connected to the fixed side frame and the first sliding arm section of the outer arm, so that when the telescopic driving part begins to extend, the angle between the telescopic driving part and the ground can be set larger than when the telescopic driving part is arranged on the scissor arms, so as to increase the vertical force component, so that when lifting the same weight, there is no need to select a telescopic driving part with a larger driving force, and at the same time, the horizontal force component is reduced, and the structural strength requirement is also lower, so as to achieve the purpose of reducing costs. In addition, the existence of the telescopic driving part will not affect the folding and storage of the scissor arms. After the platform body is lowered, the scissor arms can be completely folded, so as to reduce the occupied space.

[0016] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the embodiments of the present utility model and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present utility model, but do not constitute a limitation on the embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0018] Figure 1 It is a schematic diagram of a perspective of a pit lifting device in a folded state according to an embodiment of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a pit lifting device in an open state according to an embodiment of the utility model;

[0020] Figure 3 It is a structural schematic diagram of a scissor arm according to an embodiment of the utility model;

[0021] Figure 4 is a schematic diagram of another perspective of the pit lifting device in a folded state according to one embodiment of the utility model;

[0022] Figure 5 It is another structural schematic diagram of the pit lifting device in an open state according to one embodiment of the utility model.

[0023] Description of Reference Numerals

[0024] 500 Support platform 510 Platform body

[0025] 511 platform body 512 first bottom support rod

[0026] 513 Second bottom support rod 520 Fixed side frame

[0027] 521 Fixed straight rod 522 Fixed diagonal rod

[0028] 523 first connecting seat 524 middle connecting rod

[0029] 530 slide seat 531 slide plate

[0030] 532 sliding hole 540 second hinge seat

[0031] 541 Second hinged side plate 600 Scissor arm

[0032] 610 outer arm 611 first articulated arm segment

[0033] 612 first sliding arm section 613 second connecting seat

[0034] 620 inner arm 621 second sliding arm section

[0035] 622 second articulated arm section 630 pulley member

[0036] 640 slide rail 650 first hinge seat

[0037] 651 fixed bottom plate 652 first hinged side plate

[0038] 700 Telescopic drive DETAILED DESCRIPTION

[0039] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0040] The following describes the pit lifting device and garbage station of the utility model with reference to the accompanying drawings.

[0041] like Figures 1 to 3 As shown, the utility model provides a pit lifting device, wherein the pit lifting device comprises:

[0042] The supporting platform 500 includes a platform body 510 and a fixed side frame 520. The platform body 510 is used to place the trash bin, and the fixed side frame 520 is arranged on the platform body 510 and located at the side of the trash bin;

[0043] The scissor arm 600 includes an outer arm 610 and an inner arm 620 which are cross-hinged. The outer arm 610 is located outside the inner arm 620, and the upper and lower ends of the outer arm 610 are respectively provided with a first articulated arm section 611 and a first sliding arm section 612, and the upper and lower ends of the inner arm 620 are respectively provided with a second sliding arm section 621 and a second articulated arm section 622. The first articulated arm section 611 and the second articulated arm section 622 are respectively articulated and installed on the platform body 510 and the pit foundation in a one-to-one correspondence, and the first sliding arm section 612 and the second sliding arm section 621 are respectively slidably provided on the pit foundation and the platform body 510 in a one-to-one correspondence;

[0044] The telescopic driving member 700 has its lower end hingedly mounted on the first sliding arm section 612 , and its upper end is tilted away from the scissor arm 600 and hingedly mounted on the fixed side frame 520 .

[0045] When the above-mentioned pit lifting device is used, since the platform body 510 is provided with a fixed side frame 520, the upper and lower ends of the outer arm 610 of the scissor arm 600 are respectively provided with a first articulated arm section 611 and a first sliding arm section 612, and the upper and lower ends of the inner arm 620 are respectively provided with a second sliding arm section 621 and a second articulated arm section 622. The first articulated arm section 611 and the second articulated arm section 622 are respectively hingedly installed on the platform body 510 and the pit foundation in a one-to-one correspondence, and the first sliding arm section 612 and the second sliding arm section 621 are respectively slidably arranged on the pit foundation and the platform body 510 in a one-to-one correspondence. The lower end of the telescopic driving member 700 is hingedly installed on the first sliding arm section 612, and the upper end of the telescopic driving member 700 (oil cylinder) is tilted in a direction away from the scissor arm 600 and is hingedly installed on the fixed side frame 520. Thus, when the upper end of the telescopic drive member 700 is extended, the platform body 510 can be pushed up to extend the scissor arm 600, and when the lower end of the telescopic drive member 700 is retracted, the platform body 510 can be pulled down to fold the scissor arm 600. At the same time, the upper and lower ends of the telescopic drive member 700 are respectively connected to the fixed side frame 520 and the first sliding arm section 612 of the outer arm 610, so that when the telescopic drive member 700 begins to extend, the angle between the telescopic drive member 700 and the ground can be set larger than that when the telescopic drive member 700 is arranged on the scissor arm 600, so as to increase the vertical force component, so that when lifting the same weight, there is no need to select a telescopic drive member 700 with a larger driving force, and at the same time, the horizontal force component is reduced, and the structural strength requirement is also lower, so as to achieve the purpose of reducing costs. In addition, the existence of the telescopic drive member 700 will not affect the folding and storage of the scissor arm 600. After the platform body 510 is lowered, the scissor arm 600 can be completely folded, so as to achieve the purpose of reducing the occupied space. It should be specially noted that the telescopic driving member 700 provided by the present invention includes but is not limited to an oil cylinder, an electric cylinder and a pneumatic cylinder.

[0046] In the embodiment of the utility model, the inner arm 620 can be disposed on the lower side of the platform body 510 in a retractable and accommodating manner, the outer arm 610 can be disposed on the side of the platform body 510 in a retractable and accommodating manner, and the telescopic drive member 700 is disposed on the side of the platform body 510. By disposing the outer arm 610 in a retractable and accommodating manner on the side of the platform body 510, the telescopic drive member 700 connected to the first sliding arm section 612 of the outer arm 610 can be disposed on the side of the platform body 510, thereby facilitating the disassembly and assembly of the telescopic drive member 700. Of course, the utility model is not limited to this, and the outer arm 610 can also be disposed on the lower side of the platform body 510 in a retractable and accommodating manner like the inner arm 620, but in order to realize the connection between the upper and lower ends of the telescopic drive member 700 and the fixed side frame 520 and the first sliding arm section 612 respectively, a through hole for the telescopic drive member 700 to pass through and swing is required to be opened on the platform body 510.

[0047] like Figure 4 and Figure 5 As shown, in an embodiment of the utility model, the platform body 510 includes a platform body 511 for placing a trash bin and a first bottom support rod 512 and a second bottom support rod 513 arranged at the lower side of the platform body 511 with an interval scissor fork arm 600, and an inner arm 620 is arranged at the lower side of the platform body 511 and can be folded and accommodated between the first bottom support rod 512 and the second bottom support rod 513, that is, the first bottom support rod 512 and the second bottom support rod 513 are arranged between the parts on the lower side of the platform body 511 to enclose a receiving space for the inner arm 620, and in order to enable the inner arm 620 to be folded and accommodated between the first bottom support rod 512 and the second bottom support rod 513 on the lower side of the platform body 511, the second sliding arm section 621 of the inner arm 620 can be slidably arranged at the lower side position of the platform body 511 between the first bottom support rod 512 and the second bottom support rod 513. In addition, both ends of the first bottom support rod 512 and the second bottom support rod 513 extend out of the platform body 511, and the outer arm 610 is located on the side of the platform body 511 and can be folded and accommodated between the first bottom support rod 512 and the second bottom support rod 513, that is, the first bottom support rod 512 and the second bottom support rod 513 also enclose a receiving space for the outer arm 610 to be folded and accommodated on the side of the platform body 511, so that the bottom of the lifting device can better adapt to the square shape of the pit and protect the scissors arm 600, and in order to make the outer arm 610 can be folded and accommodated on the side of the platform body 511 between the first bottom support rod 512 and the second bottom support rod 513, the first articulated arm section 611 of the outer arm 610 can be hingedly installed on the corresponding part of the bottom support rod extending out.

[0048] In the embodiment of the utility model, the first bottom support rod 512 is arranged on the same side as the first sliding arm section 612, the second bottom support rod 513 is arranged on the same side as the first articulated arm section 611, the fixed side frame 520 includes a fixed straight rod 521 and a fixed oblique rod 522, the fixed straight rod 521 is uprightly arranged at the end of the first bottom support rod 512 extending out of the platform body 511, the fixed oblique rod 522 is inclinedly arranged and connects the upper end of the fixed straight rod 521 and the platform body 511, and the upper end of the telescopic driving member 700 is hingedly installed at the connecting corner of the fixed straight rod 521 and the fixed oblique rod 522. That is, the fixed side frame 520 can be set as a right triangle on the platform body 511 to enhance stability, and the upper end of the telescopic driving member 700 is hingedly installed at the tip of the entire right triangle, so that the adjustable height range can be maximized. Of course, the present invention is not limited to this. The fixed side frame 520 can also be set to other suitable shapes, and the hinged installation height of the upper end of the telescopic drive member 700 on the fixed side frame 520 can also be set accordingly according to needs, and is not limited to the upper end of the fixed side frame 520.

[0049] In the embodiment of the utility model, the connecting corner of the fixed straight rod 521 and the fixed oblique rod 522 is provided with a first connecting seat 523, and the upper end of the telescopic driving member 700 extends to the inner side of the first connecting seat 523 and is hingedly installed on the first connecting seat 523. The addition of the first connecting seat 523 can facilitate the disassembly and assembly, and the upper end of the telescopic driving member 700 is extended to the inner side of the first connecting seat 523 for installation, which can also play a protective role. It should be particularly noted that the inner side of the first connecting seat 523 refers to the side of the first connecting seat 523 that is arranged toward the trash can. Specifically, the upper end of the first sliding arm section 612 is provided with a second connecting seat 613, and the lower end of the telescopic driving member 700 is hingedly installed on the second connecting seat 613, and the second connecting seat 613 can be arranged near the pulley member 630 at the bottom of the first sliding arm section 612. In addition, the installation method of the telescopic driving member 700 can be either forward or reverse.

[0050] See also Figure 5 In the embodiment of the utility model, the number of the scissor arms 600 can be two, and the two scissor arms 600 are arranged in parallel and spaced along the width direction of the platform body 510. The number of the telescopic driving members 700 and the fixed side frames 520 are both two, and the two fixed side frames 520 and the two telescopic driving members 700 are respectively arranged in one-to-one correspondence with the two scissor arms 600, so as to ensure the stability of both sides during the lifting process of the platform. Specifically, an intermediate connecting rod 524 connecting the two fixed side frames 520 can also be provided to enhance the stability of the two fixed side frames 520. Of course, the utility model is not limited to this, and the two scissor arms 600 can also be arranged in parallel and spaced along the length direction of the platform.

[0051] See also Figure 2 and Figure 5 In the embodiment of the utility model, the scissor arm 600 also includes a pulley member 630 disposed at the bottom of the first sliding arm section 612, and a slide rail member 640 disposed on the pit foundation and formed with a first sliding groove. The pulley member 630 is movably disposed in the first sliding groove and can move toward or away from the second articulated arm section 622. One end of the first sliding groove disposed on the same side as the second articulated arm section 622 is open. By adding the pulley member 630 and the slide rail member 640, the stability of the first sliding arm section 612 sliding on the pit foundation can be ensured, and the end of the first sliding groove facing the second articulated arm section 622 is set to be open, so that the outer arm 610 can be completely collapsed. In addition, the first sliding groove can also be formed directly on the pit foundation by pouring cement concrete material.

[0052] Please see again Figure 2 and Figure 5In the embodiment of the utility model, the support platform 500 further includes a slide seat 530, which includes two slide plates 531 arranged at a relatively spaced interval on the lower side of the platform body 510, a second sliding groove is formed between the two slide plates 531, and a sliding hole 532 extending in the same direction as the second sliding groove is opened on the two slide plates 531, and the second sliding arm section 621 extends into the second sliding groove and can be passed through the connecting shaft member passing through the sliding hole 532, so that the second sliding arm section 621 can move toward or away from the first hinged arm section 611. By adding the slide seat 530, it is easy to realize the disassembly and assembly of the upper end of the inner segment arm 620 on the support platform 500. Specifically, the slide seat 530 is arranged on the lower side position of the platform body 511 between the first bottom support rod 512 and the second bottom support rod 513, and the slide seat 530 is arranged close to the first bottom support rod 512. The connecting shaft can be a bolt, and the head of the bolt is limited on the outer side of one of the slide plates 531. The rod of the bolt extends out of the other slide plate 531 and a nut can be screwed on it for limiting.

[0053] In the embodiment of the utility model, the scissor arm 600 also includes a first articulated seat 650, which includes a fixed bottom plate 651 and two first articulated side plates 652. The fixed bottom plate 651 is fixed on the pit foundation, and the two first articulated side plates 652 are relatively spaced on the fixed bottom plate 651, and a first clamping space for the second articulated arm section 622 to fall down is formed between the two first articulated side plates 652. The second articulated arm section 622 is placed in the first clamping space and is connected in series with the two first articulated side plates 652 through the first articulated shaft. By adding the first articulated seat 650, it is easy to realize the disassembly and assembly of the lower end of the inner section arm 620 on the pit foundation. In addition, the lower end of the inner section arm 620 can also be inserted into a steel bar pre-embedded in cement concrete.

[0054] See also Figure 2 and Figure 4 In the embodiment of the utility model, the support platform 500 also includes a second articulated seat 540, and the second articulated seat 540 includes two second articulated side plates 541. The two second articulated side plates 541 are relatively spaced apart and arranged on the inner side of the second bottom support rod 513 extending out of the platform body 511. The upper end of the outer arm 610, that is, the first articulated arm section 611, extends between the two second articulated side plates 541, and is connected in series with the two second articulated side plates 541 through the second articulated shaft.

[0055] In addition, the present invention also provides a garbage station, wherein the garbage station includes a garbage box and the above-mentioned pit lifting device, and the garbage box is used to be placed on the platform body 510. Since the garbage station adopts all the technical solutions of the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0056] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0059] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A lifting device for a pit, characterized in that: The pit lifting device comprises: A supporting platform (500) comprises a platform body (510) and a fixed side frame (520), wherein the platform body (510) is used to place a trash bin, and the fixed side frame (520) is arranged on the platform body (510) and is located on the side of the trash bin; The scissor arm (600) comprises an outer arm (610) and an inner arm (620) which are cross-hinged, wherein the outer arm (610) is located outside the inner arm (620), and the upper and lower ends of the outer arm (610) are respectively provided as a first articulated arm section (611) and a first sliding arm section (612), and the upper and lower ends of the inner arm (620) are respectively provided as a second sliding arm section (621) and a second articulated arm section (622), wherein the first articulated arm section (611) and the second articulated arm section (622) are respectively articulated and installed on the platform body (510) and the pit foundation in a one-to-one correspondence, and the first sliding arm section (612) and the second sliding arm section (621) are respectively slidably provided on the pit foundation and the platform body (510) in a one-to-one correspondence; A telescopic driving member (700), wherein the lower end of the telescopic driving member (700) is hingedly mounted on the first sliding arm section (612), and the upper end of the telescopic driving member (700) is tilted in a direction away from the scissor arm (600) and hingedly mounted on the fixed side frame (520).

2. The pit lifting device according to claim 1, characterized in that: The inner arm (620) is disposed on the lower side of the platform body (510) so as to be folded and accommodated, the outer arm (610) is disposed on the side of the platform body (510) so as to be folded and accommodated, and the telescopic driving member (700) is disposed on the side of the platform body (510).

3. The pit lifting device according to claim 1, characterized in that: The platform body (510) includes a platform body (511) for placing a trash bin, and a first bottom support rod (512) and a second bottom support rod (513) arranged at the lower side of the platform body (511) with the scissor arms (600) spaced apart; the inner arm (620) is arranged at the lower side of the platform body (511) and can be folded and accommodated between the first bottom support rod (512) and the second bottom support rod (513); and both ends of the first bottom support rod (512) and the second bottom support rod (513) extend out of the platform body (511); the outer arm (610) is located at the side of the platform body (511) and can be folded and accommodated between the first bottom support rod (512) and the second bottom support rod (513).

4. The pit lifting device according to claim 3, characterized in that: The first bottom support rod (512) is arranged on the same side as the first sliding arm section (612), and the second bottom support rod (513) is arranged on the same side as the first articulated arm section (611). The fixed side frame (520) includes a fixed straight rod (521) and a fixed oblique rod (522). The fixed straight rod (521) is upright at the end of the first bottom support rod (512) extending out of the platform body (511), and the fixed oblique rod (522) is inclined and connects the upper end of the fixed straight rod (521) and the platform body (511). The upper end of the telescopic driving member (700) is hingedly installed at the connecting corner of the fixed straight rod (521) and the fixed oblique rod (522).

5. The pit lifting device according to claim 4, characterized in that: A first connection seat (523) is provided at the connection corner between the fixed straight rod (521) and the fixed oblique rod (522), and the upper end of the telescopic driving member (700) extends toward the inner side of the first connection seat (523) and is hingedly mounted on the first connection seat (523).

6. The pit lifting device according to any one of claims 1 to 5, characterized in that: The number of the scissor arms (600) is two, and the two scissor arms (600) are arranged in parallel and spaced apart along the width direction of the platform body (510). The number of the telescopic driving members (700) and the fixed side frames (520) are both two, and the two fixed side frames (520) and the two telescopic driving members (700) are respectively arranged in one-to-one correspondence with the two scissor arms (600).

7. The pit lifting device according to any one of claims 1 to 5, characterized in that: The scissor arm (600) further comprises a pulley member (630) arranged at the bottom of the first sliding arm section (612), and a slide rail member (640) arranged on the pit foundation and formed with a first sliding groove, wherein the pulley member (630) is movably arranged in the first sliding groove and can move toward or away from the second articulated arm section (622), and one end of the first sliding groove arranged on the same side as the second articulated arm section (622) is open.

8. The pit lifting device according to any one of claims 1 to 5, characterized in that: The support platform (500) further comprises a slide seat (530), wherein the slide seat (530) comprises two slide plates (531) arranged at a relative interval on the lower side of the platform body (510), a second sliding groove is formed between the two slide plates (531), and both slide plates (531) are provided with sliding holes (532) extending in the same direction as the second sliding groove, the second sliding arm section (621) extends into the second sliding groove and can be provided with a connecting shaft passing through the sliding hole (532), so that the second sliding arm section (621) can move toward or away from the first hinged arm section (611).

9. The pit lifting device according to any one of claims 1 to 5, characterized in that: The scissor arm (600) further comprises a first articulated seat (650), wherein the first articulated seat (650) comprises a fixed base plate (651) and two first articulated side plates (652), wherein the fixed base plate (651) is fixedly arranged on a pit foundation, and the two first articulated side plates (652) are arranged on the fixed base plate (651) at a relative interval, and a first clamping space for the second articulated arm section (622) to lie down is formed between the two first articulated side plates (652), and the second articulated arm section (622) is placed in the first clamping space and is connected in series with the two first articulated side plates (652) through a first articulated shaft.

10. A garbage station, characterized in that: The garbage station comprises a garbage bin and a pit lifting device according to any one of claims 1 to 9, wherein the garbage bin is used to be placed on the platform body (510).

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