Hand-operated electric meter box installation lifting frame with current transformer

Abstract

The invention discloses a hand-operated electric meter box mounting lifting frame with a current transformer, which comprises a main beam body, a cable twisting device is arranged on the main beam body, a steel cable is mounted on the cable twisting device, a handle is arranged at one end of the cable twisting device, a main pulley is arranged on one side of the top of the main beam body, and the steel cable is in sliding fit with the main pulley. An adsorbable wall supporting cross beam is movably arranged at the top end of the main beam body, and an adsorbable ground supporting base is movably arranged at the bottom end of the main beam body. By arranging the wall body supporting cross beam and the ground supporting base, when the main beam body abuts against the wall body, the wall body supporting cross beam is stably adsorbed on the wall surface through a manual vacuum suction cup, the transverse stability characteristic of the main beam body is improved, and when the main beam body is installed on the ground, the ground supporting base is stably adsorbed on the ground through an electric vacuum suction cup, so that the safety of the main beam body is improved. The quick and convenient disassembly and assembly effect can be achieved, and meanwhile the effects of saving time and labor and improving the working efficiency are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of auxiliary devices for current transformer electric meter boxes, and in particular to a hand-cranked electric meter box installation lifting frame with a current transformer. Background Art

[0002] The installation of a traditional current transformer meter box usually requires the cooperation of multiple people to install it on the wall. Because the current transformer meter box is large in size and heavy in weight, one person cannot complete its installation, which results in time-consuming, labor-intensive, poor installation results, and low safety during the installation process, which makes the installation difficult. In the prior art, there is an installation lifting frame, which is provided with a support frame inclined against the wall, and uses a hand-cranked steel cable to lift the current transformer meter box, thereby realizing the installation in a hoisting manner. Not only can the installation height be adjusted, but also one person can easily complete the installation work, thereby improving convenience and safety.

[0003] However, when the support frame is against the wall, its upper end is only a horizontal plate for contact support with the wall, and its lower end is provided with a ground nail or expansion bolt structure to maintain stability. However, when using the support frame, workers still need to drill holes and install ground nails on the cement floor in advance to stabilize the support frame, which will undoubtedly increase the workload and difficulty of the workers. Moreover, when the support frame is removed, holes will be left on the cement floor, destroying the aesthetics of the floor.

[0004] In view of this, a hand-cranked lifting frame for installing an electric meter box with a current transformer is needed. Summary of the invention

[0005] The purpose of the present invention is to provide a hand-cranked lifting frame for installing an electric meter box with a current transformer. By setting a wall support beam and a ground support base, when the main beam is against the wall, the wall support beam is firmly adsorbed on the wall by a manual vacuum suction cup, thereby improving the lateral stability of the main beam. When installed on the ground, the ground support base is firmly adsorbed on the ground by an electric vacuum suction cup, which not only can achieve fast and convenient disassembly and assembly effects, but also saves time and effort and improves work efficiency, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A hand-cranked lifting frame for installing an electric meter box with a current transformer comprises a main beam, a cable winch is arranged on the main beam, a steel cable is installed on the cable winch, a handle is arranged at one end of the cable winch, a main pulley is arranged on one side of the top of the main beam, the steel cable and the main pulley are slidably matched, an adsorbable wall support beam is movably arranged on the top of the main beam, and an adsorbable ground support base is movably arranged on the bottom of the main beam.

[0008] Preferably, at least two manual vacuum suction cups are installed on the wall supporting cross beam, and the wall supporting cross beam can be adsorbed and fixed to the wall surface through the two manual vacuum suction cups.

[0009] Preferably, the wall supporting beam also includes an extension rod rotatably installed on the top of the main beam body, the wall supporting beam is connected to one end of the extension rod, the two manual vacuum suction cups are provided with snap wrenches, and the wall supporting beam is provided with two wrench grooves that cooperate with the snap wrenches, and the two snap wrenches both pass through one end of the wall supporting beam and are rotatably installed in the two wrench grooves respectively.

[0010] Preferably, a beam turntable is rotatably provided at the connection between the extension rod and the wall supporting beam, and rotating shafts are provided at both ends of the beam turntable, which extend outwards and are rotatably connected to the wall supporting beam and the extension rod.

[0011] Preferably, a first knob bolt is threadedly installed on one side of the top of the main beam body, and the other end of the extension rod is rotatably connected to the main beam body through the first knob bolt, and the thread of the extension rod is tightened or loosened by rotating the first knob bolt.

[0012] Preferably, the ground support base is installed with at least two electric vacuum suction cups, and the ground support base can be adsorbed and fixed to the ground through the two electric vacuum suction cups.

[0013] Preferably, the ground support base also includes a short connecting rod rotatably mounted on the bottom of the main beam body, the ground support base is connected to one end of the short connecting rod, and a driver is provided on both of the two electric vacuum suction cups.

[0014] Preferably, a base turntable is rotatably provided at the connection between the short connecting rod and the ground supporting base, and rotating shafts are provided at both ends of the base turntable, which extend to the outside to be rotatably connected to the ground supporting base and the short connecting rod.

[0015] Preferably, a second knob bolt is threadedly installed on one side of the bottom of the main beam body, and the other end of the short connecting rod is rotatably connected to the main beam body through the second knob bolt, and the thread of the short connecting rod is tightened or loosened by rotating the second knob bolt.

[0016] Preferably, a notch is provided at the bottom of the extension rod, a secondary pulley is rotatably mounted in the notch, and the steel cable passes through the main pulley and the secondary pulley respectively and slides with each other.

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

[0018] The hand-cranked lifting frame for installing an electric meter box with a current transformer described in the present invention provides a hand-cranked lifting frame for installing an electric meter box with a current transformer. By setting a wall support beam and a ground support base, when the main beam is against the wall, the wall support beam is firmly adsorbed on the wall by a manual vacuum suction cup, thereby improving the lateral stability of the main beam. When installed on the ground, the ground support base is firmly adsorbed on the ground by an electric vacuum suction cup. This not only avoids the traditional destructive installation methods such as using ground nails or expansion bolts, but also can achieve fast and convenient disassembly and assembly effects, while ensuring the aesthetics of the ground, saving time and effort for workers and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0020] Figure 1 The three-dimensional structure diagram of a manual-cranked electric meter box with current transformer installation lifting frame according to the present invention Figure 1 ;

[0021] Figure 2 This is a front structural schematic diagram of a manual-cranked electric meter box with current transformer installation lifting frame according to the present invention;

[0022] Figure 3 It is a schematic diagram of the side structure of a hand-cranked electric meter box with current transformer installation lifting frame according to the present invention;

[0023] Figure 4 The three-dimensional structure diagram of a manual-cranked electric meter box with current transformer installation lifting frame according to the present invention Figure 2 ;

[0024] Figure 5 The three-dimensional structure diagram of a manual-cranked electric meter box with current transformer installation lifting frame according to the present invention Figure 3 ;

[0025] Figure 6 The three-dimensional structure diagram of a manual-cranked electric meter box with current transformer installation lifting frame according to the present invention Figure 4 .

[0026] In the figure: 1. main beam; 2. cable winch; 3. steel cable; 4. handle; 5. main pulley; 6. wall support beam; 7. ground support base; 8. manual vacuum suction cup; 9. extension rod; 10. snap wrench; 11. wrench slot; 12. beam turntable; 13. first knob bolt; 14. electric vacuum suction cup; 15. short connecting rod; 16. drive; 17. base turntable; 18. second knob bolt; 19. notch; 20. secondary pulley. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0029] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0030] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figures 1 to 6The present invention provides a hand-cranked lifting frame for installing a meter box with a current transformer, comprising a main beam 1, on which a cable winch 2 is arranged. As the supporting core of the entire lifting frame, the main beam 1 undertakes the important task of transmitting and distributing the load. A steel cable 3 is installed on the cable winch 2, and a handle 4 is arranged at one end of the cable winch 2. A main pulley 5 is arranged on one side of the top of the main beam 1. The steel cable 3 and the main pulley 5 are slidably matched. The cable winch 2 is driven by the hand crank handle 4 to realize the retraction and release of the steel cable 3, thereby realizing the lifting function of the current transformer meter box. The sliding cooperation of the steel cable 3 with the main pulley 5 and the auxiliary pulley 20 ensures precise control and stability during the lifting process. By movably setting an adsorbable wall support beam 6 at the top of the main beam body 1 and movably setting an adsorbable ground support base 7 at the bottom of the main beam body 1, it can be ensured that both ends of the entire main beam body 1 can be stably fixed to avoid shaking when hoisting the current transformer meter box. At the same time, due to its detachable feature, when fixing the main beam body 1, there is no need to drill holes on the cement floor. The adsorption principle can achieve a quick and convenient installation effect, thereby improving the construction efficiency of workers and reducing the construction difficulty of workers.

[0033] Specifically, Figures 1 to 4 As shown, at least two manual vacuum suction cups 8 are installed on the wall support beam 6, and the wall support beam 6 can be fixed to the wall surface by adsorption through the two manual vacuum suction cups 8. By operating the snap wrench 10, the manual vacuum suction cup 8 can be quickly adsorbed on the wall surface, providing a stable support, improving the lateral support force, and preventing the main beam body 1 from sliding left and right when the current transformer meter box is hoisted.

[0034] like Figure 6 As shown, the wall support beam 6 also includes an extension rod 9 rotatably mounted on the top of the main beam body 1. The wall support beam 6 is connected to one end of the extension rod 9 and is used to provide a support arm for the wall support beam 6 to rotate. A notch 19 is also provided at the bottom of the extension rod 9, and a secondary pulley 20 is rotatably installed in the notch 19. The steel cable 3 passes through the main pulley 5 and the secondary pulley 20 respectively and slides with each other. That is, the cable winch 2 is driven by the hand crank 4, and the steel cable 3 realizes the lifting function of the electric meter box under the guidance of the main pulley 5 and the secondary pulley 20. The setting of the secondary pulley 20 further optimizes the sliding path of the steel cable 3, reduces the friction resistance, and improves the lifting efficiency.

[0035] like Figure 4As shown, the two manual vacuum suction cups 8 are both provided with snap wrenches 10, and the wall support beam 6 is provided with two wrench slots 11 that cooperate with the snap wrenches 10, and the two snap wrenches 10 both pass through one end of the wall support beam 6 and are rotatably installed in the two wrench slots 11. When in use, the manual vacuum suction cup 8 can be adsorbed by operating the snap wrench 10. Since it is a suction cup device widely used in the prior art, the specific detailed working principle will not be elaborated here.

[0036] Further, such as Figure 4 As shown, a beam turntable 12 is rotatably provided at the connection between the extension rod 9 and the wall supporting beam 6. A rotating shaft is provided at both ends of the beam turntable 12, and the two ends extend outward to be rotatably connected to the wall supporting beam 6 and the extension rod 9. By setting the beam turntable 12, the beam turntable 12 ensures the flexible rotation of the wall supporting beam 6 to meet the requirements of different installation angles. At the same time, a first knob bolt 13 is threadedly installed on one side of the top of the main beam body 1, and the other end of the extension rod 9 is rotatably connected to the main beam body 1 through the first knob bolt 13. By rotating the first knob bolt 13 to tighten or loosen the thread of the extension rod 9, not only a quick operation mode is achieved, but also the stability of the mechanism is ensured because the threaded connection has high connection strength and reliability and can withstand large axial and radial loads.

[0037] Figure 5 and Figure 6 The diagram shows the flexible angle adjustment of the wall support beam 6 and the ground support base 7. Therefore, the adjustment method of the ground support base 7 is the same as the adjustment method of the wall support beam 6. Figure 4 As shown, the ground support base 7 is installed with at least two electric vacuum suction cups 14, and the ground support base 7 can be fixed to the ground by adsorption through the two electric vacuum suction cups 14. The ground support base 7 also includes a short connecting rod 15 rotatably installed at the bottom of the main beam body 1, and the ground support base 7 is connected to one end of the short connecting rod 15. A driver 16 is provided on each of the two electric vacuum suction cups 14. When in use, the adsorption work of the electric vacuum suction cup 14 can be realized by operating the drive. Since it is a suction cup device widely used in the prior art, the specific detailed working principle is not elaborated too much here. However, since it has higher reliability and superiority than the manual vacuum suction cup 8, it is used as a stabilizing mechanism of the ground support base 7, which can not only provide a strong stabilizing effect (the electric vacuum suction cup 14 can provide an adsorption effect of several hundred kilograms), but also is convenient and fast when used, and does not require destructive installation. It only needs to clean up the dust, soil and other debris on the ground to carry out the adsorption work, which greatly improves the work efficiency.

[0038] At the same time, a base turntable 17 is rotatably set at the connection between the short connecting rod 15 and the ground support base 7, and a rotating shaft is set at both ends of the base turntable 17, and extends outward to be rotatably connected to the ground support base 7 and the short connecting rod 15. A second knob bolt 18 is threadedly installed on one side of the bottom of the main beam body 1, and the other end of the short connecting rod 15 is rotatably connected to the main beam body 1 through the second knob bolt 18. When in use, not only can the installation angle be flexibly adjusted to meet the site requirements, but also the thread of the short connecting rod 15 can be quickly tightened or loosened by rotating the second knob bolt 18, thereby locking the rotation effect of the ground support base 7, saving time and effort.

[0039] In summary, the present invention provides a hand-cranked lifting frame for installing an electric meter box with a current transformer. By setting a wall support beam 6 and a ground support base 7, when the main beam 1 is against the wall, the wall support beam 6 is firmly adsorbed on the wall by a manual vacuum suction cup 8, thereby improving the lateral stability of the main beam 1. When installed on the ground, the ground support base 7 is firmly adsorbed on the ground by an electric vacuum suction cup 14, which not only avoids the traditional destructive installation methods such as using ground nails or expansion bolts, but also can achieve fast and convenient disassembly and assembly effects, while ensuring the aesthetics of the ground, saving time and effort for workers and improving work efficiency.

[0040] The above embodiments show and describe the basic working principle, main technical features and advantages of the present invention. However, the hand-cranked lifting frame for installing an electric meter box with a current transformer designed by the present invention is not limited by the above embodiments, and there may be changes and improvements in various different embodiments. These changes and improvements all fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A hand-cranked lifting frame for installing an electric meter box with a current transformer, comprising a main beam (1), a cable winch (2) is arranged on the main beam (1), a steel cable (3) is installed on the cable winch (2), a handle (4) is arranged at one end of the cable winch (2), a main pulley (5) is arranged on one side of the top of the main beam (1), the steel cable (3) and the main pulley (5) are slidably matched, and characterized in that: The top end of the main beam body (1) is movably provided with an adsorbable wall support cross beam (6), and the bottom end of the main beam body (1) is movably provided with an adsorbable ground support base (7).

2. A hand-cranked lifting frame for installing a meter box with a current transformer according to claim 1, characterized in that: At least two manual vacuum suction cups (8) are installed on the wall support crossbeam (6), and the wall support crossbeam (6) is fixed to the wall surface in an adsorbable manner by the two manual vacuum suction cups (8).

3. A hand-cranked lifting frame for installing a meter box with a current transformer according to claim 2, characterized in that: The wall supporting crossbeam (6) also includes an extension rod (9) rotatably mounted on the top of the main beam body (1); the wall supporting crossbeam (6) is connected to one end of the extension rod (9); both manual vacuum suction cups (8) are provided with snap wrenches (10); the wall supporting crossbeam (6) is provided with two wrench grooves (11) that cooperate with the snap wrenches (10); the two snap wrenches (10) both pass through one end of the wall supporting crossbeam (6) and are rotatably mounted in the two wrench grooves (11) respectively.

4. A hand-cranked lifting frame for installing a meter box with a current transformer according to claim 3, characterized in that: A beam turntable (12) is rotatably arranged at the connection point between the extension rod (9) and the wall supporting beam (6), and rotating shafts are arranged at both ends of the interior of the beam turntable (12), which extend outwards and are rotatably connected to the wall supporting beam (6) and the extension rod (9).

5. A hand-cranked lifting and lowering frame for installing a meter box with a current transformer according to claim 4, characterized in that: A first knob bolt (13) is threadedly mounted on one side of the top of the main beam body (1), and the other end of the extension rod (9) is rotatably connected to the main beam body (1) via the first knob bolt (13), and the thread of the extension rod (9) is tightened or loosened by rotating the first knob bolt (13).

6. A hand-cranked lifting and lowering frame for installing a meter box with a current transformer according to claim 1, characterized in that: The ground support base (7) is installed with at least two electric vacuum suction cups (14), and the ground support base (7) is fixed to the ground in an adsorbable manner by the two electric vacuum suction cups (14).

7. A hand-cranked lifting and lowering frame for installing a meter box with a current transformer according to claim 6, characterized in that: The ground support base (7) also includes a short connecting rod (15) rotatably mounted on the bottom of the main beam body (1), the ground support base (7) is connected to one end of the short connecting rod (15), and the two electric vacuum suction cups (14) are both provided with a driver (16).

8. A hand-cranked lifting and lowering frame for installing a meter box with a current transformer according to claim 7, characterized in that: A base turntable (17) is rotatably provided at the connection point between the short connecting rod (15) and the ground supporting base (7), and rotating shafts are provided at both ends of the base turntable (17) and extend to the outside to be rotatably connected to the ground supporting base (7) and the short connecting rod (15).

9. A hand-cranked lifting and lowering frame for installing a meter box with a current transformer according to claim 8, characterized in that: A second knob bolt (18) is threadedly mounted on one side of the bottom of the main beam body (1), and the other end of the short connecting rod (15) is rotatably connected to the main beam body (1) via the second knob bolt (18). The thread of the short connecting rod (15) is tightened or loosened by rotating the second knob bolt (18).

10. According to the hand-cranked lifting frame for installing an electric meter box with a current transformer as described in claim 5, a notch (19) is provided at the bottom of the extension rod (9), a secondary pulley (20) is rotatably installed in the notch (19), and the steel cable (3) passes through the main pulley (5) and the secondary pulley (20) respectively, and slides with each other.

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