Mold fixing equipment for road and bridge building construction
By designing a mold fixing device including variable pitch screws and telescopic support rods, the shortcomings of existing equipment in filling height adjustment and position fine adjustment are solved, and the support uniformity and service life are improved.
Patent Information
- Application Number
- CN202510309648.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2025-04-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When used, existing mold fixing equipment is not convenient to adjust the overall external support distribution according to the filling height, and it is not convenient to easily fine-tune the position, resulting in uneven distribution of support force points, affecting the concrete forming effect, and affecting the service life of the equipment.
A mold fixing device including a fixed mold cylinder, reinforcement rib, butt bar, variable pitch screw, a first gear, a support ring, a reinforcement ring, a telescopic support rod and an internal support assembly is designed. By rotating the operating ring, the support ring and the variable pitch screw are rotated, and the height and distance of the reinforcement ring are adjusted to achieve even distribution of support force. At the same time, by switching the coordination of the screw and the push screw, easy fine-tuning of the fixed mold cylinder is achieved.
It realizes the adjustment of support distribution according to the infusion height, improves the uniformity of support force and the enclosure strength, improves the concrete forming efficiency and the service life of the mold fixing equipment, and simplifies the fine-tuning process of the mold fixing cylinder position.
Smart Images
Figure CN119800869A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of road and bridge construction, in particular to a fixed mold device used for road and bridge construction. Background Art
[0002] In the process of road and bridge construction, the construction of bridge piers is mostly prepared by fixed mold equipment in combination with steel cage and poured concrete. The fixed mold equipment is set outside the bundled steel cage to form a closed space, which is convenient for concrete pouring and molding. However, the existing fixed mold equipment has the following problems when used: Due to the large overall specifications of the fixed mold equipment, it is easy to disassemble and install, and can be reused. However, the existing fixed mold equipment is not convenient to adjust the overall external support distribution according to the pouring height. Most of them are reinforced enclosures in fixed areas. When targeting higher bridge piers, the support force points are unevenly distributed, which is easy to affect the internal concrete molding effect, and at the same time it will also affect its own service life. Furthermore, most of the fixed mold equipment needs to be hoisted to the outside of the steel cage by a crane, and then its position needs to be positioned and adjusted by a positioning instrument. The existing fixed mold equipment is not convenient for labor-saving and convenient fine-tuning of the position. Most of them require workers to repeatedly debug in multiple directions with a crowbar. On the one hand, it requires very skilled debugging methods, and on the other hand, it needs to accurately control the position and strength of the prying according to the position and debugging amount, which is inefficient.
[0003] In view of the above problems, it is urgent to carry out innovative design based on the original mold equipment. Summary of the invention
[0004] The purpose of the present invention is to provide a fixed mold device for road and bridge construction to solve the problem that the existing fixed mold device proposed in the above background technology is not convenient to adjust the overall external support distribution according to the pouring height, and it is not convenient to perform fine adjustment of the position in a labor-saving and convenient manner. The technical solution of the present invention aims at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology.
[0005] To achieve the above object, the present invention provides the following technical solution: a fixed mold device for road and bridge construction, comprising a fixed mold cylinder, a reinforcing rib is vertically fixed to the outside of the fixed mold cylinder, and a butt joint strip is fixed to the butt joint of the side edge of the fixed mold cylinder; It also includes a variable pitch screw, which is rotatably installed in the outer cavity of the middle reinforcement rib, the variable pitch screw is sleeved with a reinforcement ring on the vertical equidistant thread sleeve, the bottom of the variable pitch screw is sleeved with a first gear, the outer side of the first gear is meshed with a support ring, the support ring is sleeved in the bottom area of the reinforcement rib, a telescopic support rod is installed between the upper and lower reinforcement rings, an internal support assembly is arranged between the telescopic support rod and the side reinforcement ribs, the top of the support ring is connected to an operating ring through a pushing assembly, and the operating ring is embedded on the reinforcement rib to limit rotation; A switching screw is laterally embedded and rotatably installed on the side of the support ring. A switching head is provided on the threaded sleeve of the switching screw. A locking rod is provided on the top of the switching head. The locking rod is installed through the top of the support ring through a spring. The top of the locking rod is located in the locking groove. The locking groove is opened at the bottom of the operating ring.
[0006] Preferably, mounting holes are provided vertically and equidistantly on the docking strip, and the mounting holes on the docking strip and the mounting holes on the reinforcement ring are fastened by bolts. The reinforcement ring is sleeved on the variable pitch screw through the protruding structure on the inner wall and slides vertically on the outside of the reinforcement rib.
[0007] Preferably, universal wheels are fixed at equal angles at the bottom of the support ring, and the initial height of the universal wheels at the bottom of the support ring is higher than the bottom surface height of the fixed mold cylinder.
[0008] Preferably, the telescopic support rods between the upper and lower reinforcement rings are rotatably mounted relative to each other, and the telescopic support rods are tilted.
[0009] Preferably, the inner support assembly includes an inner support seat, which is limitedly slidably installed in a movable groove, and the movable groove is arranged on the outside of the side reinforcement rib. An inner support column is installed at the center of the inner support seat through a spring, and a mounting sleeve is provided on the inner support column. The mounting sleeve is located in the outer cavity of the inner support seat, and the mounting sleeve is rotatably connected to the telescopic support rod through the inner support rod. A resistance block is fitted on the inner end of the inner support column, and the resistance block is fixed on the inner wall of the movable groove.
[0010] Preferably, the outer side of the abutment block is designed as an inclined structure, and the abutment block is used to push the inner support column close to the telescopic support rod when the inner support seat moves upward.
[0011] Preferably, the pushing assembly includes a pushing screw, which is installed in the bottom cavity of the operating ring through a bearing for vertical limiting. The top sleeve of the pushing screw is provided with a second gear, and the outer side of the second gear is meshed with a gear ring, which is fixed in the bottom cavity of the operating ring. The bottom threaded sleeve of the pushing screw is provided with a pushing seat, and the pushing seat is fixed on the support ring.
[0012] Preferably, the pushing screw is limitedly rotated in the annular cavity at the bottom of the operating circle, the pushing screw is symmetrically arranged in the operating circle, and the pushing screw pushes the supporting circle to move vertically through the pushing seat.
[0013] Preferably, the moving trajectory of the switching head when extended overlaps with the reinforcing rib, the top of the switching head is designed with an inclined structure that conflicts with the bottom of the locking rod, and when the switching head is extended, the locking rod moves downward and resets under the action of the spring.
[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention, according to the height of concrete pouring, drives the support ring to rotate by rotating the operating circle when not switched, and drives the variable pitch screw to rotate by the first gear, so as to adjust the height of multiple reinforcement rings and the distance between adjacent ones, so as to ensure that the reinforcement rings are more evenly distributed as a whole under the condition of a given height, and provide uniform supporting force. At the same time, the supporting angle and inner supporting position of the telescopic support rod can be adjusted, so as to further improve the overall enclosure strength, and improve its molding efficiency and service life; 2. According to the present invention, after the initial installation is completed, the switching screw is rotated to adjust the positions of the switching head and the locking rod. On the one hand, the rotation of the support ring is restricted by the switching head so that it no longer adjusts the position of the reinforcement ring. On the other hand, the limit of the operating ring and the support ring can be separated. At this time, the operating ring is rotated again to drive the second gear to rotate through the gear ring, and then the support ring is pushed down by the push screw. The universal wheel at the bottom of the support ring contacts the ground, which makes it easy to fine-tune the position of the fixed mold cylinder. Then, the resetting of the support ring can fix the position of the fixed mold cylinder. The overall operation is simple. By rotating the operating ring, the position of the reinforcement ring can be adjusted on the one hand, and the position of the support ring can be adjusted on the other hand. During this period, you only need to rotate the switching screw to switch the connection state. The whole can be reused and is suitable for different usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the front cross-section structure of the present invention; Figure 2 This is a schematic diagram of the top view of the installation structure of the support ring of the present invention; Figure 3 This is a schematic diagram of the side installation structure of the telescopic support rod of the present invention; Figure 4 For the present invention Figure 1 The enlarged structural diagram at A in the middle; Figure 5 It is a schematic diagram of the side section structure of the locking rod of the present invention; Figure 6 It is a schematic diagram of the top view distribution structure of the second gear of the present invention.
[0016] In the figure: 1. fixed mold cylinder; 2. reinforcing ribs; 3. docking strips; 4. variable pitch screw; 41. first gear; 42. support ring; 5. reinforcement ring; 6. telescopic support rod; 71. inner support seat; 72. movable groove; 73. inner support column; 74. mounting sleeve; 75. inner support rod; 76. resistance block; 8. operating ring; 91. push screw; 92. second gear; 93. gear ring; 94. push seat; 10. switching screw; 11. switching head; 12. locking rod; 13. locking groove. DETAILED DESCRIPTION
[0017] 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.
[0018] See also Figure 1-Figure 6 The present invention provides a technical solution: a fixed mold device for road and bridge construction, a fixed mold cylinder 1, a reinforcing rib 2, a docking strip 3, a variable pitch screw 4, a first gear 41, a support ring 42, a reinforcement ring 5, a telescopic support rod 6, an inner support seat 71, a movable groove 72, an inner support column 73, a mounting sleeve 74, an inner support rod 75, a resistance block 76, an operating circle 8, a push screw 91, a second gear 92, a gear ring 93, a push seat 94, a switching screw 10, a switching head 11, a locking rod 12 and a locking groove 13.
[0019] Embodiment 1
[0020] See also Figure 1-Figure 3 , a reinforcing rib 2 is vertically fixed to the outside of the fixed mold cylinder 1, and a docking strip 3 is fixed to the side docking point of the fixed mold cylinder 1; the variable pitch screw 4 is rotatably installed in the outer cavity of the middle reinforcing rib 2, and a reinforcing ring 5 is sleeved on the variable pitch screw 4 with a vertical equidistant thread. The bottom of the variable pitch screw 4 is sleeved with a first gear 41, and a support ring 42 is meshed on the outside of the first gear 41. The support ring 42 is sleeved on the bottom area of the reinforcing rib 2, and a telescopic support rod 6 is installed between the upper and lower reinforcement circles 5. An internal support assembly is arranged between the telescopic support rod 6 and the side reinforcing rib 2. An operating ring 8 is connected to the top of the support circle 42 through a pushing assembly, and the operating ring 8 is embedded and limitedly rotated on the reinforcing rib 2; mounting holes are vertically equidistantly opened on the docking strip 3, and the mounting holes on the docking strip 3 and the mounting holes on the reinforcement ring 5 are fastened and installed by bolts. The reinforcement ring 5 is sleeved on the variable pitch screw 4 through the inner wall protruding structure and slides vertically on the outside of the reinforcing rib 2; the telescopic support rod 6 between the upper and lower reinforcement circles 5 is rotatably installed with each other, and the telescopic support rod 6 is tilted; The fixed die cylinder 1 consists of two halves, which are assembled by bolts in conjunction with the mounting holes on the docking strip 3 and the reinforcement ring 5, and the variable pitch screw 4 is driven to rotate by rotating the support ring 42 to adjust the distance between the multiple reinforcement rings 5 and the overall distribution position.
[0021] The inner support assembly includes an inner support seat 71, which is limitedly slidably installed in a movable groove 72, and the movable groove 72 is arranged on the outer side of the side reinforcing rib 2. An inner support column 73 is installed at the center of the inner support seat 71 through a spring, and a mounting sleeve 74 is sleeved on the inner support column 73. The mounting sleeve 74 is located in the outer cavity of the inner support seat 71, and the mounting sleeve 74 is rotatably connected to the telescopic support rod 6 through an inner support rod 75. The inner end of the inner support column 73 is fitted with a resistance block 76, and the resistance block 76 is fixed on the inner wall of the movable groove 72; the outer side of the resistance block 76 is designed as an inclined structure, and the resistance block 76 is used to push the inner support column 73 close to the telescopic support rod 6 when the inner support seat 71 moves upward; When the distance between the reinforcement rings 5 is adjusted, the two telescopic support rods 6 rotate relative to each other and move inward, driving the inner support seat 71 to move upward in the movable groove 72, and the inner end of the inner support column 73 contacts the inclined surface of the resistance block 76, pushing the inner support column 73 to move outward, and then cooperating with the movement of the telescopic support rod 6, driving the inner support rod 75 to move and rotate, and auxiliary support is provided to the upper and lower reinforcement rings 5 through the inner support rod 75 and the telescopic support rod 6.
[0022] Embodiment 2
[0023] Based on Example 1, please refer to Figure 1 and Figure 4-Figure 6 The switching screw 10 is transversely embedded and rotatably installed on the side of the support ring 42. A switching head 11 is threadedly sleeved on the switching screw 10. A locking rod 12 is provided on the top of the switching head 11. The locking rod 12 is installed through the top of the support ring 42 through a spring. The top of the locking rod 12 is located in the locking groove 13. The locking groove 13 is provided at the bottom of the operating circle 8. Universal wheels are fixed at equal angles at the bottom of the support ring 42. The initial height of the universal wheels at the bottom of the support ring 42 is higher than the bottom surface height of the fixed mold cylinder 1. The support ring 42 does not contact the ground in the initial state. However, when the support ring 42 is forced to move downward, it contacts the ground through the universal wheels at the bottom, which facilitates fine adjustment of the position of the fixed mold cylinder 1.
[0024] The pushing assembly includes a pushing screw 91, which is installed in a vertical limit position through a bearing in the bottom cavity of the operating circle 8. A second gear 92 is sleeved on the top of the pushing screw 91, and a gear ring 93 is meshed on the outer side of the second gear 92. The gear ring 93 is fixed in the bottom cavity of the operating circle 8. A pushing seat 94 is sleeved on the bottom thread of the pushing screw 91, and the pushing seat 94 is fixed on the support ring 42; the pushing screw 91 is limited and rotated in the annular cavity at the bottom of the operating circle 8, and the pushing screw 91 is symmetrically arranged in the operating circle 8. The pushing screw 91 pushes the support ring 42 to move vertically through the pushing seat 94; the moving trajectory of the switching head 11 when it is extended overlaps with the reinforcing rib 2, and the top of the switching head 11 is designed with an inclined structure that conflicts with the bottom of the locking rod 12. When the switching head 11 is extended, the locking rod 12 moves downward and resets under the action of the spring; By rotating the operating circle 8, the support ring 42 contacts the side of the reinforcing rib 2 through the locking rod 12, so that the support ring 42 does not rotate. Then, when the operating circle 8 rotates alone, the gear ring 93 can engage with the second gear 92 to drive the pushing screw 91 to rotate. The pushing screw 91 drives the support ring 42 to move downward through the pushing seat 94, so that the universal wheel at the bottom of the support ring 42 contacts the ground.
[0025] Working principle: When using the fixed mold equipment for road and bridge construction, the overall height and adjacent distance of multiple reinforcement rings 5 on the fixed mold cylinder 1 are adjusted according to the height of the bridge pier column pouring concrete. The staff rotates the operating circle 8, and the locking rod 12 is in a state of being stuck in the locking groove 13, so that the operating circle 8 can drive the support ring 42 to rotate. The support ring 42 drives the variable pitch screw 4 to rotate by meshing with the first gear 41, and adjusts the distance between the multiple reinforcement rings 5 and their overall height, so that the reinforcement rings 5 can be evenly distributed in the concrete pouring area of the bridge pier column. In the embodiment, the relative positions of the two adjacent reinforcement rings 5 change under the action of the variable pitch screw 4, driving the two telescopic support rods 6 to rotate relative to each other and move inwards, while driving the inner support seat 71 to move upwards in the movable groove 72, and the inner end of the inner support column 73 contacts the inclined surface of the abutment block 76, pushing the inner support column 73 to move outwards, thereby cooperating with the movement of the telescopic support rod 6, driving the inner support rod 75 to move and rotate, and the upper and lower reinforcement rings 5 are auxiliary supported by the inner support rod 75 and the telescopic support rod 6 to improve the overall strength, and the moved reinforcement ring 5 is fixedly installed by bolts in cooperation with the docking strip 3; At the same time, during installation, after the equipment is hoisted to the outside of the steel cage by a crane, it is necessary to cooperate with the calibration instrument to calibrate the position of the fixed mold cylinder 1. At this time, the switching screw 10 is rotated, and the switching screw 10 pushes the switching head 11 to extend out of the inner side of the support ring 42, so that the inner end of the switching head 11 is close to the outer side of the fixed mold cylinder 1. At the same time, under the action of the spring, the locking rod 12 moves down and disengages from the locking groove 13, unlocking the lateral limit of the support ring 42 and the operating ring 8. At this time, the operating circle 8 is rotated again, and the support ring 42 contacts the side of the reinforcing rib 2 through the locking rod 12, so that the support ring 42 will not rotate. Then, when the operating circle 8 rotates alone, the gear ring 93 can engage with the second gear 92 to drive the push screw 91 to rotate. The push screw 91 drives the support ring 42 to move down through the push seat 94, so that the universal wheel at the bottom of the support ring 42 contacts the ground, and then the staff cooperates with the calibration instrument to move and fine-tune the position of the fixed mold cylinder 1, and then reversely rotates the operating circle 8 to drive the support ring 42 to reset.
[0026] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. In the description of the present invention, unless otherwise specified, "multiple" means two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A fixed mold device for road and bridge construction, comprising a fixed mold cylinder (1), a reinforcing rib (2) being vertically fixed to the outside of the fixed mold cylinder (1), and a butt joint strip (3) being fixed to the butt joint of the side edge of the fixed mold cylinder (1); Features: It also comprises a variable pitch screw (4), the variable pitch screw (4) being rotatably mounted in the outer cavity of the middle reinforcing rib (2), a reinforcing ring (5) being sleeved on the vertical equidistant thread on the variable pitch screw (4), a first gear (41) being sleeved on the bottom of the variable pitch screw (4), a support ring (42) being meshed on the outer side of the first gear (41), the support ring (42) being sleeved on the bottom area of the reinforcing rib (2), a telescopic support rod (6) being mounted between the upper and lower reinforcing rings (5), an inner support assembly being arranged between the telescopic support rod (6) and the side reinforcing rib (2), the top of the support ring (42) being connected to an operating ring (8) via a pushing assembly, the operating ring (8) being embedded on the reinforcing rib (2) and rotating in a limited position; A switching screw (10) is transversely embedded and rotatably mounted on the side of the support ring (42); a switching head (11) is threadedly sleeved on the switching screw (10); a locking rod (12) is abutted against the top of the switching head (11); the locking rod (12) is installed through the top of the support ring (42) via a spring; the top of the locking rod (12) is located in a locking groove (13); and the locking groove (13) is opened at the bottom of the operating ring (8).
2. The fixed mold equipment for road and bridge construction according to claim 1 is characterized in that: The butt joint strip (3) is provided with mounting holes at equal intervals in the vertical direction. The mounting holes on the butt joint strip (3) and the mounting holes on the reinforcing ring (5) are fastened and installed by bolts. The reinforcing ring (5) is sleeved on the variable pitch screw (4) through the inner wall protruding structure and slides vertically on the outer side of the reinforcing rib (2).
3. The fixed mold equipment for road and bridge construction according to claim 2 is characterized in that: Universal wheels are fixed at equal angles on the bottom of the support ring (42); the initial height of the universal wheels on the bottom of the support ring (42) is higher than the bottom surface height of the fixed mold cylinder (1).
4. The fixed mold equipment for road and bridge construction according to claim 3 is characterized in that: The telescopic support rod (6) between the upper and lower reinforcement rings (5) are rotatably mounted relative to each other, and the telescopic support rod (6) is arranged at an angle.
5. The fixed mold equipment for road and bridge construction according to claim 4 is characterized in that: The inner support assembly comprises an inner support seat (71), the inner support seat (71) is limitedly slidably installed in a movable groove (72), the movable groove (72) is arranged on the outer side of the side reinforcing rib (2), an inner support column (73) is installed at the center of the inner support seat (71) through a spring, the inner support column (73) is provided with a mounting sleeve (74), the mounting sleeve (74) is located in the outer cavity of the inner support seat (71), the mounting sleeve (74) is rotatably connected to the telescopic support rod (6) through the inner support rod (75), and the inner end of the inner support column (73) is fitted with a resistance block (76), and the resistance block (76) is fixed on the inner wall of the movable groove (72).
6. The fixed mold equipment for road and bridge construction according to claim 5 is characterized in that: The outer side of the abutment block (76) is designed as an inclined surface structure, and the abutment block (76) is used to push the inner support column (73) closer to the telescopic support rod (6) when the inner support seat (71) moves upward.
7. The fixed mold equipment for road and bridge construction according to claim 6 is characterized in that: The pushing assembly comprises a pushing screw (91), the pushing screw (91) being installed in a bottom cavity of the operating ring (8) in a vertically limited manner via a bearing, a second gear (92) being sleeved on the top of the pushing screw (91), a gear ring (93) being meshed on the outer side of the second gear (92), the gear ring (93) being fixed in the bottom cavity of the operating ring (8), a pushing seat (94) being sleeved on the bottom thread of the pushing screw (91), the pushing seat (94) being fixed on the support ring (42).
8. The fixed mold equipment for road and bridge construction according to claim 7 is characterized in that: The push screw (91) is limitedly rotated in the annular cavity at the bottom of the operating circle (8); the push screw (91) is symmetrically arranged in the operating circle (8); and the push screw (91) pushes the support circle (42) to move vertically via the push seat (94).
9. The fixed mold equipment for road and bridge construction according to claim 8 is characterized in that: The moving track of the switching head (11) when extended overlaps with the reinforcing rib (2); the top of the switching head (11) is designed with an inclined structure that abuts against the bottom of the locking rod (12); when the switching head (11) is extended, the locking rod (12) moves downward and resets under the action of the spring.