Clamping device for the demoulding of a cement pole
By designing the support and clamping components of the clamping device, and using screws and L-shaped rods to restrict the running wheels of the steel mold for the electric pole, the problem of easy movement of the lower mold during demolding of cement electric poles was solved, and stable demolding was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI ZHONGYOUDA POWER EQUIP CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-19
AI Technical Summary
In existing technologies, cement poles have high viscosity in some areas during demolding, making it difficult to separate the steel mold from the cement pole, especially the lower mold, which tends to move along with the cement pole.
A clamping device for demolding cement poles was designed, including a support assembly and a clamping assembly. The device uses a screw to drive a slider and an L-shaped rod to restrict the running wheels of the steel mold of the pole and prevent it from moving upward. When used in conjunction with hoisting equipment, it ensures that the lower mold does not move with the cement pole.
This effectively prevents the steel formwork of the utility pole from moving together with the cement pole during the demolding process, thus improving the reliability and efficiency of demolding.
Smart Images

Figure CN224374452U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of cement pole demolding auxiliary equipment, specifically relating to a clamping device for demolding cement poles. Background Technology
[0002] Pole steel molds are commonly used molds in the processing of cement poles. They mainly include an upper mold, a lower mold, and running wheels. The upper and lower molds are connected by bolts to form a cylinder. A steel cage is placed inside the cylinder, and cement is poured into the cylinder. The cylinder is then processed by a centrifugal molding device. After molding, the cylinder is cured, and finally the pole steel mold is opened to demold the formed cement pole.
[0003] In existing technologies, a demolding device is typically used to remove cement poles from the steel mold. For example, utility model patent publication number CN217861984U discloses a demolding device for cement pole production. This device includes a support platform, a support frame, a mold, and a pole. Two support platforms are provided, and the support frame is positioned between the two platforms. The mold is positioned above the support frame, and the pole is placed inside the mold. A demolding mechanism and a spraying mechanism are respectively provided above the support platforms. The demolding mechanism includes: an electric slide rail A, a support plate, an electric slide rail B, an electric telescopic rod A, a fixing block, a fixing column, the electric telescopic rod B, and an arc-shaped top block. The electric slide rail A is fixedly installed above the two support platforms.
[0004] In the aforementioned utility model, the produced utility pole can be demolded by setting up an electric slide rail A, a support plate, an electric slide rail B, an electric telescopic rod A, a fixing block, a fixing column, an electric telescopic rod B, and an arc-shaped top block. However, when separating the cement utility pole from the steel mold, some areas have high viscosity and are difficult to separate, causing the steel mold and the cement utility pole to move together during separation, especially the lower mold. Therefore, a clamping device for demolding cement utility poles needs to be designed to restrict the lower mold of the steel mold and prevent it from moving together with the cement utility pole. Utility Model Content
[0005] This utility model provides a clamping device for demolding cement poles to solve the technical problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A clamping device for demolding cement poles includes: a support assembly comprising a support base, a support plate, and a support groove; the support plate is perpendicularly connected to the top surface of the support base; the support groove is formed at one end of the support plate away from the support base; the support groove has an arc-shaped structure; and a clamping assembly disposed on the support plate; the clamping assembly includes a screw and a clamping member; the screw is rotatably disposed on the support plate; the screw is located below the support groove; the clamping member is threadedly connected to the screw and moves along the screw; the length direction of the screw is consistent with the length direction of the support base.
[0008] As a further improvement to the technical solution, the clamping component includes a slide rod, a slider, and an L-shaped rod; one end of the slide rod is perpendicularly connected to the surface of the support plate; the length direction of the slide rod is consistent with the length direction of the screw; the slider has a threaded hole; the slider is threadedly connected to the screw; the end of the slide rod away from the support plate passes through the slider, restricting the rotation of the slider; the L-shaped rod is connected to the slider.
[0009] As a further improvement to the technical solution, the vertical end of the L-shaped rod is connected to the top surface of the slider, and its horizontal end is aligned with the length direction of the screw.
[0010] As a further improvement to the technical solution, the support plate has a through hole corresponding to the screw; the middle part of the screw is rotatably disposed on the through hole of the support plate; one end of the screw has a first thread and the other end has a second thread; the first thread and the second thread have opposite thread directions; both ends of the screw are threadedly connected to the clamping member.
[0011] As a further improvement to the technical solution, the middle surface of the screw has a smooth structure; the diameter of the middle part of the screw is smaller than the diameter of its two ends.
[0012] As a further improvement to the technical solution, the clamping assembly also includes a connecting rod and a limiting rod; one end of the limiting rod is perpendicularly connected to the surface of the support plate, and the other end extends toward the wheel; one end of the connecting rod is hinged to the edge of the wheel, and the other end is provided with a slot corresponding to the connecting rod; the connecting rod is detachably connected to the limiting rod through the slot.
[0013] As a further improvement to the technical solution, the length direction of the limiting rod is consistent with the length direction of the screw; the limiting rod is located below the screw.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] In this application, the steel formwork for the utility pole is placed on a support plate, and the running wheels on the steel formwork contact the support groove. Then, the screw is rotated, which drives the slider to move. The slider moves away from the screw, causing the L-shaped rod to move towards the groove at the connection between the running wheels on the steel formwork and the outer surface of the steel formwork. The horizontal end of the L-shaped rod extends into the groove and presses down on the running wheels, restricting the running wheels of the steel formwork and preventing them from moving upward. When the cement pole is separated, the upper formwork is first disassembled, and then the cement pole is lifted by hoisting equipment. During the lifting process, the horizontal end of the L-shaped rod presses down on the running wheels to prevent the lower formwork and the cement pole from moving. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 A schematic diagram of the structure of a clamping device for demolding cement poles provided by this utility model. Figure 1 ;
[0018] Figure 2 Structural schematic diagram provided for this utility model Figure 2 ;
[0019] Figure 3 for Figure 1 Side view in the middle;
[0020] Figure 4 for Figure 3 Sectional view at point AA;
[0021] Reference numerals: 1-Support assembly, 11-Support base, 13-Support groove, 2-Clamping assembly, 21-Screw, 22-Slide rod, 23-Slider, 24-L-shaped rod, 25-Wheel, 26-Connecting rod, 27-Limiting rod, 3-Electric pole steel mold. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art to which this utility model pertains.
[0023] The terms "first," "second," and similar words used in this utility model application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular forms of "an," "a," or "the," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. Terms such as "comprising" or "including" indicate that the element or object preceding "comprising" encompasses the features, integrals, steps, operations, elements, and / or components listed following "comprising" or "including," and do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] Example 1:
[0026] like Figures 1 to 4As shown, a clamping device for demolding cement poles includes: a support assembly 1 and a clamping assembly 2; the support assembly 1 includes a support base 11, a support plate 12, and a support groove 13; the top surface of the support base 11 is horizontal, and the support plate 12 is vertically connected to the top surface of the support base 11; the support plates 12 are distributed in parallel at intervals along the length direction of the support base 11; a support groove 13 corresponding to the running wheel of the steel mold 3 of the pole is opened at the end of the support plate 12 away from the support base 11; the support groove 13 is arc-shaped; the support grooves 13 on multiple support plates 12 are on the same straight line; the clamping assembly 2 is disposed on the support plate 12, optionally, the clamping assembly 2 is disposed on the support plates 12 at both ends of the support base 11; the clamping assembly 2 includes a screw 21 and a clamping member; the screw 21 is rotatably disposed on the support plate 12; the screw 21 is located below the support groove 13; the clamping member is threadedly connected to the screw 21 and moves along the screw 21; the length direction of the screw 21 is consistent with the length direction of the support base 11.
[0027] like Figures 2 to 4 As shown, preferably, the clamping component includes a slide rod 22, a slider 23, and an L-shaped rod 24; one end of the slide rod 22 is perpendicularly connected to the surface of the support plate 12; the length direction of the slide rod 22 is consistent with the length direction of the screw 21; the slider 23 has a threaded hole; the slider 23 is threadedly connected to the screw 21; the end of the slide rod 22 away from the support plate 12 passes through the slider 23, restricting the rotation of the slider 23 so that the slider 23 can rotate along the direction of the screw 21; the L-shaped rod 24 is connected to the slider 23; the vertical end of the L-shaped rod 24 is connected to the top surface of the slider 23, and its horizontal end is consistent with the length direction of the screw 21; it should be noted that the electric pole steel mold 3 is prior art, and there is a groove at the connection between its running wheel and the outer surface of the electric pole steel mold 3, and the horizontal end of the L-shaped rod 24 can extend into the groove.
[0028] Work style:
[0029] In use, the steel pole mold 3 is placed on the support plate 12, and the running wheel on the steel pole mold 3 contacts the support groove 13. Then, the screw 21 is rotated, and the screw 21 drives the slider 23 to move. The slider 23 moves the screw 21, which drives the L-shaped rod 24 towards the groove at the connection between the running wheel on the steel pole mold 3 and the outer surface of the steel pole mold 3. The horizontal end of the L-shaped rod 24 extends into the groove and presses down on the running wheel, restricting the running wheel of the steel pole mold 3 and preventing it from moving upward. When the cement pole is separated, the upper mold is first disassembled, and then the cement pole is lifted by the hoisting equipment. During the lifting of the cement pole, the horizontal end of the L-shaped rod 24 presses down on the running wheel to prevent the lower mold and the cement pole from moving.
[0030] like Figures 2 to 4 As shown, preferably, the clamping assembly 2 further includes a wheel 25; the wheel 25 is disposed at the end of the screw 21 away from the support plate 12, and the screw 21 is easily rotated by the wheel 25.
[0031] like Figures 2 to 4 As shown, preferably, the clamping assembly 2 further includes a connecting rod 26 and a limiting rod 27; one end of the limiting rod 27 is perpendicularly connected to the surface of the support plate 12, and the other end extends toward the wheel 25; one end of the connecting rod 26 is hinged to the edge of the wheel 25, and the other end of the connecting rod 26 has a corresponding slot, the length of which is greater than the diameter of the limiting rod 27, allowing the connecting rod 26 to rotate on the wheel 25; the connecting rod 26 is detachably connected to the limiting rod 27 through the slot; preferably, the limiting rod 27... The length direction of the limiting rod 27 is consistent with the length direction of the screw 21, and the length of the limiting rod 27 is slightly larger than that of the screw 21. The limiting rod 27 is located below the screw 21. When the screw 21 is rotated, the connecting rod 26 is flipped so that the connecting rod 26 moves toward the screw 21 to prevent the wheel 25 from colliding with the limiting rod 27 during rotation. After the L-shaped rod 24 presses down on the running wheel, the connecting rod 26 is flipped so that the connecting rod 26 moves toward the limiting rod and inserts the slot into the limiting rod 27 to prevent the wheel 25 and the screw 21 from rotating.
[0032] Example 2:
[0033] like Figure 2 and Figure 4 As shown, compared with Embodiment 1, the difference lies in the following: the support plate 12 has a through hole for the corresponding screw 21; the middle part of the screw 21 is rotatably mounted on the through hole of the support plate 12; the middle surface of the screw 21 is a smooth structure; the diameter of the middle part of the screw 21 is smaller than the diameter of its two ends; the support plate 12 includes a first plate and a second plate, the first plate is connected to the support base 11, the second plate and the first plate are detachably connected, and at the connection between the first plate and the second plate, a semi-cylindrical slot is provided in the corresponding through hole. When the first plate and the second plate are connected, the slots on the first plate and the second plate form a through hole, so that the screw... 21 Installation: Once the second plate is far from the first plate, a support groove 13 is opened; one end of the screw 21 is provided with a first thread, and the other end is provided with a second thread; the first thread and the second thread have opposite thread directions; both ends of the screw 21 are threadedly connected to the clamping member; when the screw 21 is rotated, both ends of the screw 21 rotate simultaneously, driving the clamping member to move. For example, when the screw 21 rotates clockwise, the sliders 23 at both ends of the screw 21 move together toward the support plate 12, so that the L-shaped rod 24 clamps the two sides of the running wheel. When the screw 21 rotates counterclockwise, the sliders 23 at both ends of the screw 21 move away from the support plate 12 together.
[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A clamping device for demolding cement poles, characterized in that, include: The support assembly (1) includes a support base (11), a support plate (12), and a support groove (13); the support plate (12) is vertically connected to the top surface of the support base (11); the support groove (13) is provided at one end of the support plate (12) away from the support base (11); the support groove (13) has an arc-shaped structure. A clamping assembly (2) is disposed on the support plate (12); the clamping assembly (2) includes a screw (21) and a clamping member; the screw (21) is rotatably disposed on the support plate (12); the screw (21) is located below the support groove (13); the clamping member is threadedly connected to the screw (21) and moves along the screw (21); the length direction of the screw (21) is consistent with the length direction of the support base (11).
2. The clamping device for the release of a concrete pole according to claim 1, characterized in that The clamping component includes a slide rod (22), a slider (23), and an L-shaped rod (24); one end of the slide rod (22) is perpendicularly connected to the surface of the support plate (12); the length direction of the slide rod (22) is consistent with the length direction of the screw (21); the slider (23) has a threaded hole; the slider (23) is threadedly connected to the screw (21); the end of the slide rod (22) away from the support plate (12) passes through the slider (23) to restrict the rotation of the slider (23); the L-shaped rod (24) is connected to the slider (23).
3. The clamping device for the removal of a concrete pole according to claim 2, characterized in that The vertical end of the L-shaped rod (24) is connected to the top surface of the slider (23), and its horizontal end is aligned with the length direction of the screw (21).
4. The clamping device for the release of a concrete pole according to claim 1, characterized in that, The support plate (12) has a through hole corresponding to the screw (21); the middle part of the screw (21) is rotatably disposed on the through hole of the support plate (12); one end of the screw (21) has a first thread and the other end has a second thread; the first thread and the second thread have opposite thread directions; the two ends of the screw (21) are respectively threadedly connected to the clamping member.
5. The gripping device for the removal of a concrete pole according to claim 4, characterized in that, The middle surface of the screw (21) is smooth; the diameter of the middle part of the screw (21) is smaller than the diameter of its two ends.
6. The clamping device for the removal of a concrete pole according to any one of claims 1 to 5, characterized in that The clamping assembly (2) also includes a wheel (25); the wheel (25) is located at one end of the screw (21) away from the support plate (12).
7. The clamping device for the removal of a concrete pole according to claim 6, characterized in that The clamping assembly (2) further includes a connecting rod (26) and a limiting rod (27); one end of the limiting rod (27) is perpendicularly connected to the surface of the support plate (12), and the other end extends toward the wheel (25); one end of the connecting rod (26) is hinged to the edge of the wheel (25), and the other end is provided with a slot corresponding to the connecting rod (26); the connecting rod (26) is detachably connected to the limiting rod (27) through the slot.
8. The clamping device for the removal of a concrete pole according to claim 7, characterized in that The length direction of the limiting rod (27) is consistent with the length direction of the screw (21); the limiting rod (27) is located below the screw (21).