A floor type handcart auxiliary pushing device

Abstract

The utility model relates to a circuit breaker and function handcart field, concretely provides a floor type handcart auxiliary pushing device, including horizontal frame and two support legs, horizontal frame connects two support legs, two support legs can respectively detachable connection in the both sides of pushing mechanism and support pushing mechanism, and the bottom of support leg is provided with gyro wheel, the utility model discloses the both sides of pushing mechanism are supported by making support leg in advance, do not need staff to drag pushing mechanism by manpower, and support leg replaces artificial support pushing mechanism, in the moving process of pushing mechanism, the one end of pushing mechanism that removes handcart always has support leg to follow and supports, guarantees the stability and balance when pushing mechanism moves to each position, also need not to find additional support object to push mechanism to lift again in succession, and because support leg is detachable connection with pushing mechanism, uses along with the installation, does not influence the normal use of handcart after subsequent detection ends, and simultaneously a set of auxiliary pushing equipment can also repeatedly use.

Description

Technical Field

[0001] This utility model relates to the field of circuit breakers and functional handcarts, and specifically provides a floor-mounted handcart auxiliary pushing device. Background Technology

[0002] Floor-mounted circuit breakers or functional trolleys require electrical functional testing. During testing, the movement of the trolley in and out of the switchgear is simulated by pushing and pulling the pushing mechanism on the floor-mounted circuit breaker or functional trolley (hereinafter referred to as the trolley). Pulling out the pushing mechanism puts the trolley in the working position; pushing the pushing mechanism back puts the trolley in the test position.

[0003] During electrical functional testing, the push mechanism is pulled out, and secondary wiring and line correctness checks need to be performed within the push mechanism. During the operation of the handcart entering and exiting, staff need to manually support the push mechanism to maintain balance, while another staff member operates it through the front operating hole to move the push mechanism along the threaded guide rod in the handcart. The entire operation usually requires multiple people to work together. When the handcart is moved to the working position, the push mechanism is temporarily supported by padding with foam or fixing brackets. The whole process is repeated multiple times during testing, and each operation is extremely cumbersome and restrictive. The staff suffers from high labor intensity, and the testing efficiency is extremely low. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a device that assists in the entry and exit of handcarts, reducing labor intensity, facilitating entry and exit, and thereby improving the efficiency of electrical functional testing. The specific technical solution is as follows:

[0005] Example 1:

[0006] A floor-mounted handcart auxiliary pushing device includes a cross frame and two support legs. The cross frame connects the two support legs, which are detachably connected to both sides of the pushing mechanism and support the pushing mechanism. Rollers are provided at the bottom of the support legs.

[0007] In this scheme, by pre-supporting the two sides of the pushing mechanism with the support legs, and rotating the crank handle of the connecting guide thread rod on the pushing mechanism, the pushing mechanism can be moved. When the handcart moves from the test position to the working position, there is no need for staff to manually lift the pushing mechanism. The support legs replace manual support for the pushing mechanism. During the movement of the pushing mechanism, the end of the pushing mechanism that moves out of the handcart is always followed and supported by the support legs, ensuring the stability and balance of the pushing mechanism when it moves to each position. There is also no need to find additional supports to lift the pushing mechanism. Furthermore, since the support legs and the pushing mechanism are detachably connected, they can be installed and used immediately without affecting the normal use of the circuit breaker handcart after the subsequent testing. At the same time, one set of auxiliary pushing equipment can be used repeatedly.

[0008] Preferably, the crossbar and the support leg are detachably connected. In this design, by disassembling the connection between the support leg and the bracket, the auxiliary device can be disassembled when not in use, saving considerable space.

[0009] Since the crossbar connects the two support legs, it makes the two support legs more stable. To ensure that the detachable connection between the crossbar and the support legs is convenient and reliable, a threaded pin is provided on each of the support legs, and an arc-shaped notch is provided at both ends of the crossbar. The arc-shaped notch opens downward and is adapted to the threaded pin. Through the arc-shaped notch, the two ends of the crossbar can be placed on the two support legs respectively.

[0010] In this design, the two ends of the crossbeam can be placed directly on the support legs, and the arc-shaped notches at both ends can be engaged with threaded pins facing downwards. Tightening the threaded pins will fix the crossbeam in place and limit the distance between the two support legs, ensuring that the distance between the two support legs does not change during the process of supporting the moving and pushing mechanism. This also results in more stable movement.

[0011] Since the support legs connect and support both ends of the trolley pushing mechanism, and different models and specifications of circuit breaker trolleys have different widths, the width of their pushing mechanisms also varies. To accommodate trolleys of different widths, preferably, multiple arc-shaped notches are evenly arranged along the length of the crossbeam, with multiple arc-shaped notches to accommodate support leg connections at different intervals.

[0012] Preferably, another solution for adapting to handcarts of different widths is that the middle section of the crossbeam is provided with an extension structure, and the support legs are provided on both sides of the pushing mechanism. When the width of the pushing mechanism changes, the distance between the two support legs will change. By adjusting the overall length of the crossbeam, the arc-shaped notch of the crossbeam can always fall on the threaded pin of the support leg to achieve a detachable connection.

[0013] Since existing circuit breaker trolleys have pins on both sides of the pushing mechanism to adapt to the switchgear cabinet, the upper end of the support leg is provided with a connection hole. The size of the connection hole is adapted to the pins on both sides of the pushing mechanism. This solution, based on the detachable connection between the crossbeam and the support leg, allows the pin on one side of the pushing mechanism to be inserted into the connection hole on a single support leg. After both pins are inserted into the support leg, the crossbeam connects the two support legs, limiting the distance between them, thus connecting the support leg to the pushing mechanism. Force is transmitted through a single pin, allowing the support leg to move with the pushing mechanism.

[0014] Similarly, in order to accommodate switchgear trolleys of different heights, multiple connection holes are vertically and evenly arranged. Each connection hole is matched with a standard height push mechanism position to ensure that when the pins on both sides of the push mechanism are inserted into the connection hole, the support legs can also contact the ground.

[0015] Preferably, another solution for adapting to handcarts of different heights is that the middle section of the support leg is provided with a lifting structure, and the height of the connecting hole is adjusted by adjusting the height of the support leg, so that the connecting hole can be adapted to the pushing mechanism of different heights.

[0016] Preferably, each of the support legs has an auxiliary support leg at its bottom, and the auxiliary support leg has at least two rollers. By providing multiple rollers on the auxiliary support leg, the stability of the single support leg during movement can be improved, further ensuring the balance and stability of the propulsion mechanism during movement.

[0017] The beneficial effects of this utility model are:

[0018] This invention allows the support legs to pre-support both sides of the pushing mechanism. By rotating the crank handle connecting the guide thread rod on the pushing mechanism, the pusher can be moved from the test position to the working position without manual lifting of the pushing mechanism. The support legs replace manual support. The end of the pushing mechanism that moves out of the circuit breaker cart is always supported by the support legs, ensuring stability and balance when moving the pushing mechanism to various positions. No additional supports are needed to lift the pushing mechanism. Furthermore, since the support legs are detachably connected to the pushing mechanism, they can be installed and used immediately without affecting the normal use of the circuit breaker or functional cart after subsequent testing. A single set of auxiliary pushing equipment can also be reused, saving costs. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 This is a schematic diagram illustrating the states of the vehicle being moved out and in using this utility model.

[0022] Figure 3 This is a schematic diagram of one type of crossbar of the present invention;

[0023] Figure 4 This is a schematic diagram of another type of crossbar according to the present invention;

[0024] Figure 5 This is a schematic diagram of one type of support leg of this utility model;

[0025] Figure 6 This is a schematic diagram of another support leg of this utility model.

[0026] In the above figures, the corresponding reference numerals are as follows:

[0027] 1-Handcart, 2-Pushing mechanism, 3-Auxiliary pushing device, 31-Horizontal frame, 32-Support leg, 321-Auxiliary support leg, 33-Roller, 34-Threaded pin, 35-Arc-shaped notch, 36-Extension structure, 361-Positioning bolt, 362-Limit slide rail, 37-Connecting hole, 38-Lifting structure. Detailed Implementation

[0028] The technical solution of this utility model will be clearly and completely described in conjunction with the accompanying drawings and through specific implementation methods of the embodiments of this utility model.

[0029] Example 1:

[0030] A floor-mounted handcart 1 auxiliary pushing device 3, such as Figure 1 As shown, it includes a cross frame 31 and two support legs 32. The cross frame 31 connects the two support legs 32. The two support legs 32 can be detachably connected to both sides of the pushing mechanism 2 and support the pushing mechanism 2. The bottom of the support legs 32 is provided with rollers 33.

[0031] Specifically, the crossbar 31 and the two support legs 32 form an "H"-shaped support structure, where the support legs 32 support the pushing mechanism 2, and the crossbar 31 connects and stabilizes the two support legs. Figure 1As shown, an auxiliary support leg 321 is provided at the bottom of each individual support leg 32, and at least two rollers 33 are provided on the auxiliary support leg 321. The auxiliary support leg 321 is horizontally positioned, and preferably, rollers 33 are provided at both ends of the auxiliary support leg 321. This ensures that after the entire crossbar connects the two support legs 32, the four rollers 33 below the two support legs 32 form a plane, guaranteeing the stability of the entire auxiliary pushing device 3 during movement. This further ensures the balance and stability of the pushing mechanism during movement.

[0032] The support leg 32 and the cross frame 31 can be welded together or detachably connected. For ease of storage and installation of the entire auxiliary pushing device 3, a detachable connection is preferred. By disassembling the connection between the support leg 32 and the bracket, the auxiliary device can be disassembled when not in use, saving space. A preferred detachable connection method is as follows: Figure 1 As shown, a threaded pin 34 is provided on a single support leg 32, and the threaded pin 34 is bolted to the support leg 32. The cross frame 31 has arc-shaped notches 35 at both ends, with the opening of the arc-shaped notches 35 facing downward. The arc-shaped notches 35 are adapted to the threaded pins 34. Through the arc-shaped notches 35, the two ends of the cross frame 31 can be placed on the two support legs 32 respectively.

[0033] The crossbar 31 is preferably a round steel tube with both ends flattened, and the notch can be more easily set in the flattened section. The two ends of the crossbar 31 are placed on the support legs 32, and the arc-shaped notches 35 at both ends are engaged with the threaded pins 34 downwards. Tightening the threaded pins 34 can press and fix the flattened section of the crossbar 31. At this time, the crossbar 31 restricts the distance between the two support legs 32, ensuring that the distance between the two support legs 32 does not change during the process of supporting the moving push mechanism 2. With the detachable connection, the movement of the auxiliary push device 3 can be made more stable.

[0034] In this embodiment, such as Figure 2 As shown, by pre-supporting both sides of the pushing mechanism 2 with the support legs 32 and remotely rotating the connecting guide thread rod on the pushing mechanism 2, the pushing mechanism 2 can move from the test position to the working position without manual lifting by the staff. The support legs 32 replace manual support for the pushing mechanism 2. During the movement of the pushing mechanism 2, the end of the pushing mechanism 2 that moves out of the circuit breaker trolley 1 is always supported by the support legs, ensuring the stability and balance of the pushing mechanism 2 when it moves to each position. There is no need to find additional supports to lift the pushing mechanism 2. Furthermore, since the support legs 32 are detachably connected to the pushing mechanism 2, they can be installed and used immediately without affecting the normal use of the trolley 1 after the subsequent testing. At the same time, a set of auxiliary pushing equipment can be used repeatedly.

[0035] Example 2:

[0036] Based on Embodiment 1, the support legs 32 are detachably connected to both sides of the pushing mechanism 2. The detachable connection methods include, but are not limited to, bolt connections and slot connections. However, to avoid affecting the integrity of the circuit breaker truck 1 itself, the structure of the circuit breaker truck 1 itself is modified as little as possible. Furthermore, since the existing circuit breaker truck 1 has plugs for the switchgear on both sides of the pushing mechanism 2, therefore... Figure 1 , Figure 5 and Figure 6 As shown, a connecting hole 37 is provided at the upper end of the support leg 32, and the size of the connecting hole 37 is adapted to the pins on both sides of the pushing mechanism 2.

[0037] In this embodiment, based on the detachable connection between the cross frame 31 and the support leg 32, the connection hole 37 on a single support leg 32 allows the insertion of a pin on one side of the pushing mechanism 2. After the pins at both ends are inserted into the support leg 32, the cross frame 31 connects the two support legs 32, limiting the distance between the two support legs 32, thus realizing the connection between the support leg 32 and the pushing mechanism 2. The pin transmits force, allowing the support leg 32 to move with the movement of the pushing mechanism 2.

[0038] When it is necessary to remove the auxiliary pushing device 3 from the pushing mechanism 2, it is only necessary to disconnect the connection between one end of the cross frame 31 and the support leg 32 to easily and quickly remove the auxiliary pushing device 3.

[0039] Example 3:

[0040] Based on the above embodiments, since the support legs 32 connect and support both ends of the push mechanism 2 of the handcart 1, and the widths of the push mechanism 2 vary depending on the model and specification of the circuit breaker handcart 1, the following measures are taken to accommodate handcarts 1 of different widths: Figure 3 As shown, multiple arc-shaped notches 35 are evenly arranged along the length of the crossbeam 31 to accommodate support legs 32 with different spacing.

[0041] Of course, this embodiment also provides another solution to adapt to handcarts 1 with different widths. That is, the middle section of the crossbeam 31 is provided with an extension structure 36, and the support legs 32 are arranged on both sides of the pushing mechanism 2. When the width of the pushing mechanism 2 changes, the distance between the two support legs 32 will change. By adjusting the overall length of the crossbeam 31, the arc-shaped notch 35 of the crossbeam 31 can always fall on the threaded pin 34 of the support leg 32 to achieve a detachable connection. The specific extension structure 36 can be as follows: Figure 4 As shown, the crossbar includes two circular tubes at both ends. One circular tube slides into the other circular tube, and the two circular tubes are provided with mutually compatible limiting slide rails 362. The outer wall of the larger diameter circular tube is threaded with positioning bolts 361.

[0042] Similarly, in order to adapt to switchgear trolleys of different heights, such as... Figure 5 As shown, multiple connecting holes 37 are vertically and evenly arranged, and each connecting hole 37 is matched with a standard height push mechanism 2 position, ensuring that when the pins on both sides of the push mechanism 2 are inserted into the connecting hole 37, the support leg 32 can also contact the ground. Due to the relatively simple structure, the support leg 32 can be spliced ​​from angle steel.

[0043] Of course, this embodiment also provides another solution to adapt to handcarts 1 of different heights, such as... Figure 6 As shown, a lifting structure 38 is provided in the middle section of the support leg 32. By adjusting the height of the support leg 32, the height of the connecting hole 37 can be adjusted so that the connecting hole 37 can be adapted to the pushing mechanism 2 of different heights. Specifically, the lifting structure 38 can be the same as the extension structure 36 mentioned above. The support leg 32 is a circular tube structure. A smaller diameter circular tube slides through the upper part of the support leg 32. One end of the smaller diameter circular tube is flattened and a connecting hole 37 is provided. The two circular tubes are provided with mutually compatible limiting slide rails 362. The outer wall of the larger diameter circular tube is threaded with a positioning bolt 361.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A floor model hand truck assisted push device, characterized by, It includes a cross frame (31) and two support legs (32). The cross frame (31) connects the two support legs (32). The two support legs (32) can be detachably connected to both sides of the pushing mechanism (2) and support the pushing mechanism (2). The bottom of the support legs (32) is provided with rollers (33).

2. The floor model handcart auxiliary propelling device according to claim 1, wherein, The crossbar (31) is detachably connected to the support leg (32).

3. A floor model hand truck auxiliary propelling device according to claim 2, wherein, A threaded pin (34) is provided on each of the support legs (32), and an arc-shaped notch (35) is provided at both ends of the cross frame (31). The arc-shaped notch (35) opens downward and is adapted to the threaded pin (34). Through the arc-shaped notch (35), the two ends of the cross frame (31) can be placed on the two support legs (32) respectively.

4. The floor model hand truck auxiliary propelling device of claim 3 wherein, Multiple arc-shaped notches (35) are evenly arranged along the length of the crossbeam (31).

5. The handcart-assisted walking device according to claim 3, wherein The cross frame (31) is provided with an extension structure (36) in the middle section.

6. A handcart auxiliary propelling device according to any one of claims 2 to 4, characterized in that, The upper end of the support leg (32) is provided with a connecting hole (37), the size of which is adapted to the pins on both sides of the pushing mechanism (2).

7. A floor-mounted handcart assist pushing device according to claim 6, characterized in that, The connecting holes (37) are arranged vertically and evenly in multiples.

8. A floor-mounted handcart assist pushing device according to claim 6, characterized in that, The middle section of the support leg (32) is provided with a lifting structure (38).

9. A floor-mounted handcart assist pushing device according to claim 1, characterized in that, Each of the support legs (32) has an auxiliary support leg (321) at its bottom, and the auxiliary support leg (321) has at least two rollers (33).

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