Metal sand core fixing structure for GIS (Gas Insulated Switchgear) shell

Abstract

The utility model relates to the technical field of molds, in particular to a GIS shell metal sand core fixing structure which comprises an outer mold, a fixing cylinder is fixedly connected to the middle of the right side of the outer mold, a sliding cylinder is slidably connected to the inner wall of the fixing cylinder, and a transmission box is fixedly connected to the right side of the sliding cylinder. And a limiting seat is movably connected to the right side of the inner wall of the sliding cylinder, a sand core is arranged in the outer mold, a sand bottom is fixedly connected to the right side of the sand core, a pushing mechanism is arranged in the fixed cylinder, and a rotating mechanism is arranged in the transmission box. Pushing and rotating of the limiting base are achieved, and the stability and adjustability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a GIS shell metal mold sand core fixing structure. Background Art

[0002] GIS shell is a kind of shell specially designed and manufactured to protect GIS equipment. Its material can be iron sheet, stainless steel plate and other materials. GIS shell has the characteristics of waterproof, dustproof and corrosion-resistant, and can be customized according to actual needs. GIS shell is generally cast by combining external mold and sand core.

[0003] The bottom of the sand core inside the existing device is a full circle. When placing the sand core, there is a certain gap between the sand core and the outer mold, which causes a large deviation in the GIS shell, reducing the working efficiency and practicality of the device. Therefore, in order to solve the above problem, a GIS shell metal mold sand core fixing structure is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a GIS shell metal mold sand core fixing structure to solve the problem that the bottom of the internal sand core of the existing device in the prior art mentioned in the above background technology is a whole circle, and when the sand core is placed, there is a certain gap between the sand core and the outer mold, which causes a large deviation of the GIS shell.

[0005] To achieve the above object, the utility model provides the following technical solutions: a GIS shell metal mold sand core fixing structure, comprising an outer mold, a fixed cylinder is fixedly connected to the middle part of the right side of the outer mold, a sliding cylinder is slidably connected to the inner wall of the fixed cylinder, a transmission box is fixedly connected to the right side of the sliding cylinder, a limited position seat is movably connected to the right side of the inner wall of the sliding cylinder, a sand core is arranged inside the outer mold, and a sand bottom is fixedly connected to the right side of the sand core;

[0006] A pushing mechanism is provided inside the fixed cylinder, and the pushing mechanism includes a movable screw, and the left end of the movable screw is movably connected to the upper right side of the sliding cylinder. A rotating mechanism is provided inside the transmission box, and the rotating mechanism includes a transmission worm, and the rear end of the transmission worm is movably connected to the inside of the transmission box.

[0007] Preferably, the right end of the movable screw passes through the fixed cylinder and is fixedly connected to the first twist cover, the outer wall of the movable screw is threadedly connected to a fixing nut, and the left side of the fixing nut is fixedly connected to the upper right side of the fixed cylinder.

[0008] Preferably, the overall shape of the sand bottom is truncated cone-shaped, a slot is provided on the outer wall of the sand bottom, and a groove corresponding to the sand bottom is provided on the inner wall of the limit seat.

[0009] Preferably, the front end of the transmission worm passes through the transmission box and is fixedly connected to a second twist cover.

[0010] Preferably, a transmission worm wheel is meshingly connected to the upper part of the outer wall of the transmission worm, a rotating shaft is fixedly connected to the middle of the left side of the transmission worm wheel, and the left end of the rotating shaft passes through the sliding cylinder and is fixedly connected to the main gear.

[0011] Preferably, the outer wall of the main gear is meshingly connected with an internal gear, and the left side of the internal gear is fixedly connected to the right side of the limiting seat.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model uses the structures of the movable screw, the first twist cover, the fixed nut, the slot and the groove in the pushing mechanism, and drives the movable screw to rotate in a limited position through the first twist cover. The movable screw is restricted by the fixed nut, so that the movable screw drives the sliding cylinder to slide left and right, and the sliding cylinder drives the limit seat to slide synchronously, thereby realizing the pushing of the limit seat, so that some devices can limit and fix the sand core inside the outer mold, effectively avoiding the deviation of the product caused by the shaking of the sand core, and improving the stability and practicality of the device.

[0014] 2. The utility model uses the transmission worm, second twist cover, transmission worm wheel, rotating shaft, main gear and internal gear and other structures in the rotating mechanism, and drives the transmission worm to rotate in a limited position through the second twist cover, the transmission worm engages to drive the transmission worm wheel, rotating shaft and main gear to rotate synchronously, the main gear engages to drive the internal gear to rotate, and the internal gear drives the limit seat to rotate in a limited position, thereby realizing the rotation of the limit seat, so that part of the device can be rotated and adjusted according to the direction of the slot of the limit seat, which is convenient for fixing the base of the sand core, and improving the adjustability and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front side perspective view of the structure of the utility model;

[0016] Figure 2 It is a front view cross-sectional stereoscopic diagram of the structure of the utility model;

[0017] Figure 3 It is a rear cross-sectional stereoscopic view of the local structure of the fixed cylinder and the pushing mechanism of the utility model;

[0018] Figure 4 It is a front cross-sectional stereoscopic view of the local structure of the transmission box and the rotating mechanism of the utility model.

[0019] In the figure: 11, outer mold; 12, fixed cylinder; 13, sliding cylinder; 14, transmission box; 15, limit seat; 16, sand core; 17, sand bottom; 2, pushing mechanism; 21, movable screw; 22, first twist cover; 23, fixing nut; 24, slot; 25, groove; 3, rotating mechanism; 31, transmission worm; 32, second twist cover; 33, transmission worm wheel; 34, rotating shaft; 35, main gear; 36, internal gear. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 , an embodiment provided by the utility model:

[0022] A GIS shell metal mold sand core fixing structure comprises an outer mold 11, a fixed cylinder 12 is fixedly connected to the middle of the right side of the outer mold 11, a sliding cylinder 13 is slidably connected to the inner wall of the fixed cylinder 12, a transmission box 14 is fixedly connected to the right side of the sliding cylinder 13, a limited position seat 15 is movably connected to the right side of the inner wall of the sliding cylinder 13, a sand core 16 is arranged inside the outer mold 11, and a sand bottom 17 is fixedly connected to the right side of the sand core 16;

[0023] A pushing mechanism 2 is provided inside the fixed cylinder 12, and the pushing mechanism 2 includes a movable screw 21, the left end of the movable screw 21 is movably connected to the upper right side of the sliding cylinder 13, the right end of the movable screw 21 passes through the fixed cylinder 12 and is fixedly connected to a first twist cover 22, the outer wall of the movable screw 21 is threadedly connected to a fixing nut 23, and the left side of the fixing nut 23 is fixedly connected to the upper right side of the fixed cylinder 12. Through this design, it is achieved that the first twist cover 22 can drive the movable screw 21 to rotate in a limited position, so that the movable screw 21 drives the sliding cylinder 13 to slide left and right. The overall shape of the sand bottom 17 is truncated cone-shaped, and a card groove 24 is provided on the outer wall of the sand bottom 17, and a groove 25 corresponding to the sand bottom 17 is provided on the inner wall of the limit seat 15. Through this design, it is achieved that the sliding cylinder 13 drives the limit seat 15 to be sleeved on the outer wall of the sand bottom 17.

[0024] A rotating mechanism 3 is provided inside the transmission case 14, and the rotating mechanism 3 includes a transmission worm 31, the rear end of the transmission worm 31 is movably connected to the inside of the transmission case 14, and the front end of the transmission worm 31 passes through the transmission case 14 and is fixedly connected to the second twist cover 32. Through this design, the second twist cover 32 drives the transmission worm 31 to rotate in a limited position, and a transmission worm wheel 33 is meshedly connected to the upper outer wall of the transmission worm 31, and a rotating shaft 34 is fixedly connected to the middle left side of the transmission worm wheel 33. The left end of the rotating shaft 34 passes through the sliding cylinder 13 and is fixedly connected to the main gear 35. Through this design, the transmission worm wheel 33 drives the rotating shaft 34 and the main gear 35 to rotate in a limited position, and the outer wall of the main gear 35 is meshedly connected to the internal gear 36, and the left side of the internal gear 36 is fixedly connected to the right side of the limiting seat 15. Through this design, the internal gear 36 drives the limiting seat 15 to rotate in a limited position.

[0025] Working principle: When the limit seat 15 needs to be pushed, first rotate the first twist cover 22, the first twist cover 22 drives the movable screw 21 to rotate in a limited manner, and the movable screw 21 is restricted by the fixed nut 23, so that the movable screw 21 drives the sliding cylinder 13 to slide left and right, and the sliding cylinder 13 drives the limit seat 15 to slide synchronously, thereby realizing the pushing operation of the limit seat 15.

[0026] When it is necessary to rotate the limit seat 15, first rotate the second twist cover 32, the second twist cover 32 drives the transmission worm 31 to rotate in a limited position, the transmission worm 31 engages to drive the transmission worm wheel 33 to rotate, the transmission worm wheel 33 drives the rotating shaft 34 to rotate in a limited position, the rotating shaft 34 drives the main gear 35 to rotate synchronously, the main gear 35 engages to drive the internal gear 36 to rotate, the internal gear 36 drives the limit seat 15 to rotate in a limited position, the rotation operation of the limit seat 15 is realized, and the operation ends here.

[0027] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A GIS shell metal mold sand core fixing structure, comprising an outer mold (11), characterized in that: A fixed cylinder (12) is fixedly connected to the middle part of the right side of the outer mold (11); a sliding cylinder (13) is slidably connected to the inner wall of the fixed cylinder (12); a transmission box (14) is fixedly connected to the right side of the sliding cylinder (13); a limited position seat (15) is movably connected to the right side of the inner wall of the sliding cylinder (13); a sand core (16) is provided inside the outer mold (11); a sand bottom (17) is fixedly connected to the right side of the sand core (16); A pushing mechanism (2) is provided inside the fixed cylinder (12), and the pushing mechanism (2) includes a movable screw (21), and the left end of the movable screw (21) is movably connected to the upper right side of the sliding cylinder (13). A rotating mechanism (3) is provided inside the transmission box (14), and the rotating mechanism (3) includes a transmission worm (31), and the rear end of the transmission worm (31) is movably connected to the inside of the transmission box (14).

2. A GIS shell metal mold sand core fixing structure according to claim 1, characterized in that: The right end of the movable screw rod (21) passes through the fixed cylinder (12) and is fixedly connected to the first twist cover (22); the outer wall of the movable screw rod (21) is threadedly connected to a fixing nut (23); the left side of the fixing nut (23) is fixedly connected to the upper right side of the fixed cylinder (12).

3. A GIS shell metal mold sand core fixing structure according to claim 1, characterized in that: The overall shape of the sand bottom (17) is truncated cone-shaped, the outer wall of the sand bottom (17) is provided with a clamping groove (24), and the inner wall of the limiting seat (15) is provided with a groove (25) corresponding to the sand bottom (17).

4. The GIS shell metal mold sand core fixing structure according to claim 1 is characterized in that: The front end of the transmission worm (31) passes through the transmission box (14) and is fixedly connected to the second twist cover (32).

5. A GIS shell metal mold sand core fixing structure according to claim 4, characterized in that: A transmission worm wheel (33) is meshedly connected to the upper portion of the outer wall of the transmission worm (31); a rotating shaft (34) is fixedly connected to the middle portion of the left side of the transmission worm wheel (33); and the left end of the rotating shaft (34) passes through the sliding cylinder (13) and is fixedly connected to a main gear (35).

6. A GIS shell metal mold sand core fixing structure according to claim 5, characterized in that: The outer wall of the main gear (35) is meshedly connected with an internal gear (36), and the left side of the internal gear (36) is fixedly connected to the right side of the limiting seat (15).

Images