CN105033932A - Installation tool special for inflating cabinet accessories - Google Patents

Abstract

The invention relates to a special installation tool for an inflatable cabinet accessory, which includes four components A, B, C and D, and the main bodies of the four components are all support rods, wherein the components A and B are composed of a support rod and a base plate Formed vertically, component A is longer than component B; component C includes a support rod, and the two ends of the support rod are respectively provided with external threads; component D includes a support rod and a support plate vertically fixed on the top of the fourth support rod. The bottom end of the support rod is provided with external threads, the top end is provided with internal threads, and the support plate is provided with through holes. With four components, two or three can be selected in combination to accommodate different installation heights and different attachment types. The invention is simple in structure, convenient in operation, safe in use and convenient to disassemble and carry. The invention can efficiently complete the installation of the accessories of the inflatable cabinet, and at the same time saves time and effort for personnel operation without any safety hazard.

Description

Special installation tool for inflatable cabinet accessories

technical field

The invention relates to the field of installation of inflatable cabinets, in particular to a special installation tool for accessories of inflatable cabinets.

Background technique

In the installation process of the inflatable cabinet equipment, it is necessary to install insulating heads, lightning arresters and other accessories. Taking the insulating head with the largest installation volume as an example, the specific process of installing it on the inflatable cabinet is as follows: set a jack at the bottom, place a number of skids on the jack to form a vertical support structure, and use the jack to tighten the insulating head. In the bushing at the bottom of the electrical cabinet, the insulating head is then installed on the bottom of the cabinet by fixing bolts.

The horizontal space at the bottom of the inflatable cabinet is narrow, and the installation operation can only be performed by one person. During installation, in order to ensure insulation, an insulating bushing is generally installed in the installation hole at the bottom of the cabinet, and the accessories are squeezed into the bushing. Since the bushing is squeezed and deformed and compressed air is generated in it, when the jack rises, the middle part The insulating head is easily squeezed out and the installer is injured. Therefore, the installer must spare one hand to hold the insulating head and the skids firmly, so as to ensure that the axial direction of the insulating head coincides with the axis of the supporting structure. , thus avoiding skewness. However, the compressed air in the casing is easy to leak from the gap between the threaded hole at the bottom of the insulating head and the skid, which will generate a lateral force, causing the entire support structure to deflect, thereby causing the insulating head to be squeezed out. In addition, the stability of the support structure formed by the cooperation of skids and jacks is poor, and the support height of the support structure is difficult to adjust. During the installation process, it is often necessary to continuously increase skids to meet the height requirements.

It can be seen that installing the insulating head at the bottom of the inflatable cabinet is a very time-consuming and laborious work, and the same is true for the installation of accessories such as lightning arresters. In addition, because the models of the inflatable cabinets are different, the installation space for different accessories at the bottom is also different. Taking the 35KV inflatable cabinet as an example, the accessories to be installed are mainly insulating heads and lightning arresters. Taking ABB's ZX2 inflatable cabinet and Siemens' 8DA inflatable cabinet as examples, the statistics on the installation height are shown in Table 1 below:

device name Statistical average of bottom height (unit: cm) Bottom height correction value (unit: cm) Insulation head (Siemens) 224 213 Insulation head (ABB) 39 36 Lightning arrester (Siemens) 198 195 Arrester (ABB) 203 195

The bottom height correction value in the table is the height value after reducing the statistical average of the bottom height. Since the tool support height can be slightly smaller but not too large, the height value used in the design should be reduced.

It can be seen from the above table that for different accessories, the reserved installation heights of the two devices are very different, the high one can reach 2 meters, while the low one is only 40 centimeters.

The different structures of the accessories will inevitably lead to different installation methods and tools. For the insulating head and lightning arrester, the structure of the bottom is shown in Table 2 below:

It can be seen from Table 2 that the bottom of the insulating head is convex and has a threaded hole. The threaded hole communicates with the top opening of the insulating head, that is, it communicates with the casing at the bottom of the cabinet. The compressed air in the casing can be passed through the threaded hole. leak out. There is a concave surface at the bottom of the arrester, and for the arrester with sensor, the bottom also has a bolt with a length of 18mm.

It can be seen from the above that the installation environment at the bottom of the inflatable cabinet is complex and changeable, and the structure of the accessories is also varied. The existing installation tools and methods are not satisfactory in terms of safety or installation efficiency.

Contents of the invention

The technical problem to be solved by the present invention is to provide a special installation tool for the accessories of the inflatable cabinet, which is simple in structure, convenient in operation, safe in use and easy to disassemble and carry.

In order to solve the above technical problems, the structural features of the special installation tool for the inflatable cabinet accessories of the present invention include:

Component A, which includes a first base plate arranged at the bottom and a first support rod vertically fixed on the first base plate, the top end of the first support rod is provided with internal threads and forms a first threaded sleeve;

Assembly B, which includes a second base plate arranged at the bottom and a second support rod vertically fixed on the second base plate, the top end of the second support rod is provided with internal threads and forms a second threaded sleeve, the second support the length of the rod is less than that of the first support rod;

Component C, which includes a third support rod, the bottom end of the third support rod is provided with external threads and forms a third screw rod that can be screwed with the first threaded sleeve or the second threaded sleeve, and the top end of the third support rod External threads are set on the top of the head to form a head screw rod that can be screwed and matched with the threaded hole at the bottom of the insulating head to be installed;

Assembly D, which includes a fourth support rod and a support plate vertically fixed on the top end of the fourth support rod. The bottom end of the fourth support rod is provided with a fourth Screw rod, the top end of the fourth support rod is provided with internal threads and forms a fourth threaded sleeve that can be screwed and matched with the third screw rod, and the support plate is provided with a through hole for the third screw rod or the bottom bolt of the lightning arrester to be installed to pass through .

With the above structure, component A and component B are mainly used for the support of the bottom, and the base plate on it can be placed directly on the ground or placed on the jack; installation space; component C is dedicated to the installation of the insulating head, and the head screw rod on it is installed in the threaded hole at the bottom of the insulating head, which can be used to fix the insulating head and seal the threaded hole To avoid compressed air leakage; component D is dedicated to the installation of the arrester, and the support plate is used to cooperate with the bottom surface of the arrester. When there are bolts on the bottom surface of the arrester, the bolts can be inserted into the fourth thread through the through hole on the support plate. Inside the bushing, ensure that the support plate matches the bottom surface of the arrester; using four components, you can choose two or three of them to be used in combination, so as to adapt to different installation heights and different types of accessories; using the screw rod and the threaded bushing The screw connection structure is convenient for disassembly and transportation. At the same time, the height can be fine-tuned by adjusting the screw connection depth, which further facilitates the installation.

The support plate is a circular plate whose diameter is larger than the concave surface of the bottom of the lightning arrester to be installed. Since the bottom of the arrester has a circular groove, using a slightly larger circular plate structure to cooperate with the bottom end surface of the arrester to be installed can ensure more stable and reliable support.

The middle part of the first support rod is connected with a spring shock absorber. Since each component is rigidly connected by bolts, there is no buffer margin, and the shock absorber can reduce the impact on the accessories.

The middle part of the third support rod is fixedly fitted with a third handle. The middle part of the fourth support rod is fixedly fitted with a fourth handle. The setting of the grip handle is convenient for borrowing force, helps to screw the components together, and also facilitates fine-tuning of the height during the installation process.

The length of the first support rod and the third support rod is 100±5 cm; the length of the second support rod and the fourth support rod is 20±3 cm. According to statistics on the height of the installation space of the existing inflatable cabinet, the combination of the second support rod and the fourth support rod is just about 40 cm, which is suitable for installation in a small space of about 40 cm. About 2 meters, it is suitable for installation in a large space of about 2 meters, and at the same time, it can be applied to a higher installation height by cooperating with one or both of the second support rod and the fourth support rod. This combination of lengths can meet the installation requirements of various existing types of inflatable cabinets and accessories.

To sum up, the present invention has the advantages of simple structure, convenient operation, safe use, and easy disassembly and portability. The present invention can efficiently complete the installation of the accessories of the inflatable cabinet, and at the same time save time and effort for personnel operation, without any safety hazard.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

Fig. 1 is the structural representation of A, B, C, D four assemblies among the present invention;

Fig. 2 is a structural schematic diagram of one of the combined usage modes of the present invention;

Fig. 3 is a structural schematic diagram of another combined use mode of the present invention;

Fig. 4 is a structural schematic diagram of yet another combined use mode of the present invention.

Detailed ways

Referring to Figure 1, the special installation tool for the inflatable cabinet accessories includes four components A, B, C, and D. With the four components, two or three of them can be selected for use in combination, so that it is suitable for different installation heights and different environments. Attachment type.

Referring to Fig. 1, assembly A includes a first base plate 11 arranged at the bottom and a first support rod 1 vertically fixed on the first base plate 11, and the top end of the first support rod 1 is provided with an internal thread and forms a first thread Casing 12. Assembly B includes a second base plate 21 arranged at the bottom and a second support rod 2 vertically fixed on the second base plate 21, the top end of the second support rod 2 is internally threaded and forms a second threaded sleeve 22, The length of the second support rod 2 is smaller than that of the first support rod 1 .

Referring to FIG. 1 , components A and B are mainly used for bottom support, and the base plate on them can be placed directly on the ground or placed on a jack 7 . FIG. 3 shows a schematic diagram of the cooperation between the jack 7 and the second base plate 21 . The lengths of components A and B are not equal, and they are suitable for installation spaces with different heights and heights. Since each component is rigidly connected by bolts, there is no buffer allowance, and a spring shock absorber 13 is connected in the middle of the first support rod 1, thereby reducing the impact on the accessories.

Referring to FIG. 1 , assembly C includes a third support rod 3 , the bottom end of the third support rod 3 is provided with an external thread and forms a third screw rod 31 that can be threadedly engaged with the first threaded sleeve 12 or the second threaded sleeve 22 , the top end of the third support rod 3 is provided with an external thread and forms a head screw rod 32 that can be screwed and matched with the threaded hole at the bottom end of the insulating head 5 to be installed. Component C is dedicated to the installation of the insulating head 5, and the head screw rod 32 on it is installed in the threaded hole at the bottom of the insulating head, which can not only be used to fix the insulating head 5, but also seal the threaded hole , to avoid leakage of compressed air.

Referring to Fig. 1, assembly D includes a fourth support rod 4 and a support plate 41 vertically fixed on the top of the fourth support rod 4, the support plate 41 is a circular plate with a diameter larger than the bottom concave surface of the lightning arrester to be installed. The bottom end of the fourth support rod 4 is provided with the fourth screw rod 42 that can be screwed with the first threaded sleeve 12 or the second threaded sleeve 22, and the top end of the fourth support rod 4 is provided with internal threads and formed to be compatible with the third threaded sleeve. The screw 31 is screwed to the fourth threaded sleeve 43 , and the support plate 41 is provided with a through hole 410 through which the third screw 31 or the bolt at the bottom of the lightning arrester 6 to be installed can pass. Component D is dedicated to the installation of the arrester 6. The support plate 41 is used to cooperate with the bottom end surface of the arrester 6. When there are bolts on the bottom end surface of the arrester 6, the bolts can be inserted into the fourth threaded sleeve through the through hole 410 on the support plate 41. 43 , ensure that the support plate 41 is planarly matched with the bottom end surface of the lightning arrester 6 .

Referring to the accompanying drawings, each component utilizes the screw connection structure of the screw rod and the threaded sleeve, which is convenient for disassembly and transportation. At the same time, the height can be fine-tuned by adjusting the screw connection depth, which further facilitates the installation. As shown in the figure, the middle parts of the third support rod 3 and the fourth support rod 4 are respectively fixedly fitted with a third handle 33 and a fourth handle 44 . The setting of the grip handle is convenient for borrowing force, which is helpful for manual operation to screw the components together, and also facilitates fine-tuning of the height during the installation process.

In the concrete implementation of the present invention, taking the 35KV inflatable cabinet as an example, the accessories to be installed are mainly two kinds of insulating head and lightning arrester. Taking the ZX2 type inflatable cabinet of ABB Company and the 8DA type inflatable cabinet of Siemens Company as examples, the installation height The statistics are shown in Table 1 below:

device name Statistical average of bottom height (unit: cm) Bottom height correction value (unit: cm) Insulation head (Siemens) 224 213 Insulation head (ABB) 39 36 Lightning arrester (Siemens) 198 195 Arrester (ABB) 203 195

The bottom height correction value in the table is the height value after reducing the statistical average of the bottom height. Since the tool support height can be slightly smaller but not too large, the height value used in the design should be reduced. After the bottom height is corrected, three values are obtained: 195cm, 213cm, and 36cm. According to the heights of the three installation spaces and the concept of the present invention, the specific dimensions of each component are calculated below.

In order to use the bolt structure to adjust the height, the support height of each size should be combined by at least two components, and to realize the adjustment of the above three sizes, at least three size components need to be designed.

Let the lengths of the three size components after removing the bolts be X, Y, Z respectively, satisfying: $\left\{\begin{array}{c}x=195\\ x+Y=213\\ Y+Z=26\end{array}\right.$ Obtain: X=195cm; Y=18cm; Z=18cm. Considering that the tool with a length of 195cm is inconvenient for transportation and handling in a small space, it is divided into two sections with a length of 95cm and 100cm to obtain four lengths, namely 100cm, 95cm, 18cm and 18cm. Considering the length adjustment when screwing, two of the four components are longer, that is, the length of the first support rod 1 and the third support rod 3 is 100 ± 5 cm, and the other two are short, that is, the second support rod 2 and the length of the fourth support rod 4 are 20 ± 3 centimeters. Based on this calculation principle, combined with the structure of the present invention, the size design of other types of inflatable cabinets can also be carried out, and details will not be repeated here.

Figure 2-Figure 4 shows several combinations of the present invention, Figure 2 shows the combination of components A, C and D to install the structure of the insulating head, this combination is applicable to the 213cm in Table 1 installation height; Figure 3 shows the combination of components B and C to install the structure of the insulating head, this combination is suitable for the installation height of 36cm in Table 1; Figure 4 shows components A and D Combined use for arrester installation structure, this combination is suitable for the installation height of 195cm in Table 1.

To sum up, the present invention is not limited to the above specific embodiments. Those skilled in the art can make several changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention should be based on the claims of the present invention.

Claims (6)

1. a gas-filling cabinet annex special installation tool, is characterized in that comprising:

Assembly A, it comprises the first bedplate (11) and vertical the first support bar (1) be fixed on the first bedplate (11) that are arranged on bottom, and the top ends of the first support bar (1) is offered internal thread and formed the first threaded sleeve (12);

Assembly B, it comprises the second bedplate (21) and vertical the second support bar (2) be fixed on the second bedplate (21) that are arranged on bottom, the top ends of the second support bar (2) is offered internal thread and is formed the second threaded sleeve (22), and the length of the second support bar (2) is less than the first support bar (1);

Assembly C, it comprises the 3rd support bar (3), the bottom of the 3rd support bar (3) offer external screw thread and formed can with the 3rd screw rod (31) of the first threaded sleeve (12) or the second threaded sleeve (22) threaded, the top ends of the 3rd support bar (3) is offered external screw thread and is also formed the end socket that can coordinate with insulation end socket (5) bottom to be installed screw hole and to be spirally connected bar (32);

Assembly D, it comprises the 4th support bar (4) and the vertical gripper shoe (41) being fixed in the 4th support bar (4) top, the bottom of the 4th support bar (4) arrange can with the 4th screw rod (42) of the first threaded sleeve (12) or the second threaded sleeve (22) threaded, the top ends of the 4th support bar (4) offer internal thread and formed can with the 4th threaded sleeve (43) of the 3rd screw rod (31) threaded, gripper shoe (41) offers the through hole (410) that can pass for the 3rd screw rod (31) or arrester to be installed (6) bottom bolts.

2. gas-filling cabinet annex special installation tool as claimed in claim 1, is characterized in that the circular slab of described gripper shoe (41) arrester bottom concave surface to be installed for diameter is greater than.

3. gas-filling cabinet annex special installation tool as claimed in claim 1, is characterized in that middle part linking springs damper (13) of described first support bar (1).

4. gas-filling cabinet annex special installation tool as claimed in claim 1, is characterized in that the middle part fixed cover of described 3rd support bar (3) is equipped with the 3rd gripping handle (33).

5. gas-filling cabinet annex special installation tool as claimed in claim 1, is characterized in that the middle part fixed cover of described 4th support bar (4) is equipped with the 4th gripping handle (44).

6. the gas-filling cabinet annex special installation tool according to any one of claim 1-5, is characterized in that the length of described first support bar (1) and the 3rd support bar (3) is 100 ± 5 centimetres; The length of the second support bar (2) and the 4th support bar (4) is 20 ± 3 centimetres.