Corner expansion joint covering prefabricating tool

Abstract

The utility model provides a corner expansion joint covering prefabricating tool, which comprises a base plate, a support, a jack, a top die and a bottom die, the support is fixedly arranged on the base plate, the jack is fixedly arranged on the support and is vertically arranged with the top end facing downwards, the top die and the bottom die are correspondingly arranged up and down, and the top die and the bottom die are vertically arranged. The shape and the size of the jack are matched with those of the covering face of the corner expansion joint, the top die is fixedly arranged at the top end of the jack, and the bottom die is fixedly arranged on the base plate. The corner expansion joint covering surface can be simply, conveniently and quickly manufactured, and the site construction requirement can be well met; moreover, the structure is simple, the operation is convenient, and the assembly cost is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal covering production, and in particular relates to a prefabricated tooling for covering a corner expansion joint. Background Art

[0002] In the construction of nuclear power and military projects, structures such as process pipe trench coverings and waterway coverings are equipped with many corner expansion joint coverings to enhance the seismic resistance of the stainless steel coverings and play a good buffering role for the covering structure.

[0003] Due to the irregular shape of the corner expansion joint covering, standard workshop machinery could not be used to manufacture it. Custom factory processing would be costly and time-consuming, failing to meet on-site construction requirements. If an effective solution for the corner expansion joint covering was not found, the subsequent installation of the stainless steel covering would be severely impacted. Utility Model Content

[0004] In order to solve the above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a prefabricated tooling for covering a corner expansion joint.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a prefabricated tooling for corner expansion joint covering, which has the following characteristics: it includes: a base plate, a bracket, a jack, a top mold and a bottom mold, wherein the bracket is fixedly arranged on the base plate, the jack is fixedly arranged on the bracket, and is vertically arranged with the top end facing downward, the top mold and the bottom mold are arranged in correspondence with each other up and down, and respectively have shapes and sizes matching the corner expansion joint covering, the top mold is fixedly arranged on the top end of the jack, and the bottom mold is fixedly arranged on the base plate.

[0007] The corner expansion joint covering prefabricated tooling provided by the present invention may also have the following features: wherein the bracket is a portal frame having a crossbeam and two vertical beams fixedly connected to the two ends of the crossbeam, and the jack is located directly below the crossbeam.

[0008] The prefabricated tooling for covering corner expansion joints provided by the present invention may also have the following feature: a lifting lug is further provided on the crossbeam.

[0009] The corner expansion joint covering prefabricated tooling provided by the present invention may also have the following features: wherein the jack is mounted on the bracket via a fixing bracket, and the fixing bracket has two fixing circular plates respectively located at the top end and the tail end of the jack.

[0010] The corner expansion joint covering prefabricated tooling provided by the present invention may also have the following features: wherein, a top plate is provided at the top end of the jack, and a top mold connecting plate is provided at the top of the top mold, and the top mold connecting plate is installed directly below the top plate by bolts.

[0011] The corner expansion joint covering prefabricated tooling provided by the present invention may also have the following features: a bottom mold support plate is provided below the bottom mold, and the bottom mold support plate is fixedly arranged on the base plate.

[0012] The corner expansion joint covering prefabricated tooling provided by the present invention may also have the following feature: a plurality of stiffening plates arranged at intervals along the circumference of the bottom mold are provided on the bottom mold support plate.

[0013] The corner expansion joint covering prefabricated tooling provided by the present invention may also have the following feature: wherein the jack is a hydraulic jack.

[0014] Function and effect of utility model

[0015] According to the prefabricated tooling for corner expansion joint coverings involved in the utility model, because it comprises a base plate, a bracket, a jack, a top mold and a bottom mold, the bracket is fixedly arranged on the base plate, the jack is fixedly arranged on the bracket and is vertically arranged with the top end facing downward, the top mold and the bottom mold are arranged correspondingly up and down and respectively have shapes and sizes that match the corner expansion joint coverings, the top mold is fixedly arranged on the top end of the jack, and the bottom mold is fixedly arranged on the base plate, so the utility model can simply and quickly produce corner expansion joint coverings, and well meet the needs of on-site construction; moreover, it has a simple structure, is easy to operate, and has a low assembly cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the prefabricated tooling for covering the corner expansion joint in an embodiment of the present utility model;

[0017] Figure 2 is a structural schematic diagram of a semi-finished corner expansion joint covering in an embodiment of the present invention; and

[0018] Figure 3 It is a structural schematic diagram of a finished corner expansion joint covering in an embodiment of the present utility model. DETAILED DESCRIPTION

[0019] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention.

[0020] <Example>

[0021] like Figure 1 As shown, in this embodiment, the corner expansion joint covering prefabrication tool 10 is used to prefabricate thin stainless steel corner expansion joint coverings (see Figure 2 and Figure 3 In this embodiment, the stainless steel plate is a 022Cr19Ni10 stainless steel plate with a thickness of 3 mm. The corner expansion joint covering prefabricated tooling 10 includes a base plate 11, a bracket 12, a jack 13, a top mold 14, and a bottom mold 15.

[0022] The base plate 11 is a square steel plate of 2000×2000×40 mm, and is used for installing the bracket 12 , the jack 13 , the top mold 14 and the bottom mold 15 .

[0023] Bracket 12 is a portal-type frame fixed to base plate 11. It comprises a horizontal beam 121 and two vertical beams 122 fixedly connected to the ends of horizontal beam 121. The lengths of horizontal beam 121 and vertical beam 122 are 1200 mm and 2000 mm, respectively. Both horizontal beam 121 and vertical beam 122 are made of hot-rolled H-shaped steel measuring HW400×400×13×21 mm. The ends of vertical beam 122 are welded to base plate 11 and horizontal beam 121, respectively.

[0024] In this embodiment, a lifting lug 121a is provided in the center above the beam 121 to facilitate the transfer of the position of the tooling by lifting. The lifting lug 123 is made of Q235B steel plate with a thickness of 20 mm; a reinforcement plate 121b is also provided on the top and side of the beam 121.

[0025] The jack 13 is arranged vertically with its top facing downward, secured directly below the crossbeam 121 by a fixing bracket 131. The fixing bracket 131 comprises two fixing circular plates 131a and 131b, located at the top and rear ends of the jack 13, respectively. These plates are connected to the crossbeam 121 of the bracket 12 via four M20mm bolts. In this embodiment, the jack 13 is a 50T hydraulic jack with a top plate 13a welded to its top. This top plate 13a is made of 20mm thick Q235B steel. The hydraulic jack also has a hydraulic oil inlet 13b and a hydraulic oil outlet 13c.

[0026] The top mold 14 and the bottom mold 15 are arranged correspondingly up and down, and each has a shape and size that matches the corner expansion joint covering.

[0027] The top mold 14 is secured to the top plate 13a of the jack 13 via a top mold connecting plate 141. Specifically, the top mold 14 is welded directly below the top mold connecting plate 141, which is connected to the top plate 13a via four M20mm bolts. The top mold connecting plate 141 is made of 20mm thick Q235B steel. In this embodiment, the top mold 14 is made of a 50mm diameter curved stainless steel bar made of 022Cr19Ni10.

[0028] The bottom mold 15 is located directly below the top mold 14 and is fixed to the base plate 11 via a bottom mold support plate 151. Specifically, a bottom mold support plate 151 is welded below the bottom mold 15 and fixed to the base plate 11. In this embodiment, the bottom mold support plate 151 is provided with a plurality of stiffening plates 152 spaced apart along the circumference of the bottom mold 15. The bottom mold 15, bottom mold support plate 151, and stiffening plates 152 are all made of 20mm thick Q235B steel plate. The bottom mold support plate 151 is aligned with the top mold 14 to ensure that the top mold 14 fully conforms to the semi-finished corner expansion joint covering and the bottom mold 15.

[0029] In order to prevent the corner expansion joint covering from moving during the pressing process and to ensure the pressing quality, the stainless steel plate used to make the corner expansion joint covering is fixed to the base plate 11 by welding.

[0030] During the pressing process, the air pipe of the external hydraulic pump is first connected to the hydraulic oil inlet 13b and the hydraulic oil outlet 13c. The hydraulic jack 13 is then adjusted to ensure normal operation. The stainless steel sheet material used to press the corner expansion joint covering is then placed in the bottom mold 15. The switch is turned on to start the pressing process. The pressing process is completed when the pressure gauge reaches 50 MPa. When the pressure gauge reaches 50 MPa, the pressed corner expansion joint covering has relatively good quality and meets the construction technical requirements.

[0031] Example Function and Effect

[0032] According to the prefabricated tooling for the corner expansion joint covering involved in this embodiment, because it has a base plate, a bracket, a jack, a top mold and a bottom mold, the bracket is fixedly arranged on the base plate, the jack is fixedly arranged on the bracket and is vertically arranged with the top end facing downward, the top mold and the bottom mold are arranged in correspondence with each other up and down and respectively have shapes and sizes that match the corner expansion joint covering, the top mold is fixedly arranged on the top end of the jack, and the bottom mold is fixedly arranged on the base plate. Therefore, this embodiment can easily and quickly produce corner expansion joint coverings, which well meets on-site construction needs; moreover, it has a simple structure, is easy to operate, and has a low assembly cost.

[0033] The above-mentioned embodiments are preferred examples of the present invention and are not intended to limit the scope of protection of the present invention.

Claims

1. A prefabricated tooling for covering a corner expansion joint, characterized in that: include: Base plate, bracket, jack, top mold and bottom mold, Wherein, the bracket is fixedly arranged on the base plate, The jack is fixed on the bracket and arranged vertically with the top end facing downward. The top mold and the bottom mold are arranged correspondingly up and down, and each has a shape and size that matches the corner expansion joint covering. The top mold is fixedly arranged at the top end of the jack. The bottom mold is fixedly arranged on the base plate.

2. The prefabricated tooling for covering corner expansion joints according to claim 1, characterized in that: in, The bracket is a portal frame having a crossbeam and two vertical beams fixedly connected to the two ends of the crossbeam. The jack is located just below the crossbeam.

3. The prefabricated tooling for covering corner expansion joints according to claim 2, characterized in that: in, The crossbeam is also provided with a lifting lug.

4. The prefabricated tooling for covering corner expansion joints according to claim 1, characterized in that: in, The jack is mounted on the bracket via a fixing bracket. The fixing bracket has two fixing circular plates respectively located at the top end and the tail end of the jack.

5. The prefabricated tooling for covering corner expansion joints according to claim 1, characterized in that: in, The top end of the jack is provided with a top plate. A top mold connecting plate is provided on the top of the top mold, and the top mold connecting plate is installed just below the top plate through bolts.

6. The prefabricated tooling for covering corner expansion joints according to claim 1, characterized in that: in, A bottom mold support plate is provided below the bottom mold, and the bottom mold support plate is fixedly arranged on the base plate.

7. The prefabricated tooling for covering corner expansion joints according to claim 6, characterized in that: in, The bottom mold support plate is provided with a plurality of stiffening plates arranged at intervals along the circumference of the bottom mold.

8. The prefabricated tooling for covering corner expansion joints according to claim 1, characterized in that: in, The jack is a hydraulic jack.

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