Socket and spigot type pier base

Abstract

The invention provides a socket and spigot type pier base. The socket and spigot type pier base comprises a base, a first positioning assembly and a second positioning assembly. The base is provided with a bell and spigot; the first positioning assembly comprises two positioning blocks, the two positioning blocks are oppositely arranged in the bell and spigot, a positioning space is formed between the two positioning blocks, at least one of the two positioning blocks is a movable positioning block, and the movable positioning block can move relative to the base and is used for adjusting the size of the positioning space; the second positioning assembly comprises a rack, a driving gear and a sector gear, the driving gear is rotationally arranged on the movable positioning block and meshed with the rack, the sector gear is rotationally arranged on the movable positioning block, and a limiting position is arranged on the rotation stroke of the sector gear so that the sector gear can be meshed with the driving gear. The sector gear is separated from the driving gear through the avoiding position; the technical problems that in the prior art, adjustment flexibility, precision keeping and dynamic adaptability are insufficient are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of building structures, in particular to a socket-type pier. Background Art

[0002] Socket-and-socket connection is a common fixing method, which is achieved by inserting an insert (such as a column) into the socket and using a clamping or locking mechanism to achieve fixation. However, the traditional socket-and-socket structure has the following problems:

[0003] 1. Inconvenient adjustment, poor adaptability, and difficulty in quickly adapting to inserts of different sizes;

[0004] 2. There is a lack of dynamic fine-tuning function for dimensional changes caused by thermal expansion, which can easily lead to stress concentration or loosening. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a socket-type pier, which solves the technical problems of insufficient adjustment flexibility, precision maintenance and dynamic adaptability in the prior art.

[0006] According to an embodiment of the present invention, a spigot-type pier includes:

[0007] A base having a socket;

[0008] a first positioning assembly comprising two positioning blocks, the two positioning blocks being disposed opposite each other in the socket to form a positioning space therebetween, at least one of the two positioning blocks being a movable positioning block, the movable positioning block being movable relative to the base to adjust the size of the positioning space;

[0009] A plurality of second positioning assemblies, comprising a rack, a driving gear, and a sector gear, wherein the rack is arranged along the movement direction of the movable positioning block, the driving gear is rotatably arranged on the movable positioning block and meshes with the rack, and the sector gear is rotatably arranged on the movable positioning block and has a limit position in its rotation stroke for meshing the sector gear with the driving gear, and an avoidance position for separating the sector gear from the driving gear;

[0010] At the limit position, the movable positioning block is used to apply a first force to the sector gear through the driving gear, so that the driving gear and the sector gear are continuously meshed, and the movable positioning block has a first movement displacement value;

[0011] At the avoidance position, the movable positioning block is used to apply a second force to the driving gear, so that the driving gear and the rack remain engaged, and the movable positioning block has a second motion position value;

[0012] The first motion displacement value is smaller than the second motion displacement value, so that the size of the positioning space at the first motion displacement value is smaller than its size at the second motion displacement value.

[0013] Preferably, the second positioning assembly also includes a limit column and a tension spring, the limit column is provided on the sector gear, and the two ends of the tension spring are respectively connected to the limit column and the movable positioning block, so that when the sector gear is in the avoidance position, it has a tendency to move toward the limit position.

[0014] Preferably, the limiting column is provided with a boss, and the tension spring is connected to the boss.

[0015] Preferably, the movable positioning block and the limiting column are both provided with a socket, and a pin can be inserted into the socket to position the limiting column and limit the sector gear to the avoidance position.

[0016] Preferably, the latch is provided with a hanging hole.

[0017] Preferably, the movable positioning block is provided with a guide rod, and the guide rod is movably passed through the base.

[0018] Preferably, a spring is provided on the outer sleeve of the guide rod, and two ends of the spring are respectively connected to the movable positioning block and the base.

[0019] Preferably, the guide rod extends along the movement direction of the movable positioning block, and the deformation direction of the spring is parallel to the movement direction of the movable positioning block.

[0020] Preferably, the movable positioning block is provided with a plurality of rollers.

[0021] Preferably, the socket is an upwardly opening structure, and the movable positioning block is formed with a guide inclined surface inclined upward; and / or

[0022] The movable positioning block is provided with a supporting surface along the up and down directions.

[0023] Compared to the prior art, the present invention has the following beneficial effects: the movable positioning block can move relative to the base, so that the positioning space formed by it can be adjusted according to the size of the insert, thereby improving its flexibility and adaptability; at the same time, the movable positioning block is provided with a second positioning component, which cooperates with the second positioning component to form a dual positioning mode. When the sector gear is in the limit position, the thermal expansion force drives the movable positioning block to produce a small range of first motion displacement value, so that the sector gear and the driving gear engage to achieve small displacement adjustment, which can adapt to the positioning after thermal expansion and compensate for the displacement caused by thermal expansion; when the sector gear is in the avoidance position, a wide range of adjustment is allowed. Furthermore, the meshing of the sector gear and the driving gear forms a mechanical self-locking, preventing loosening and ensuring high-precision positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the structure of a socket-type pier in one embodiment of the present invention;

[0025] Figure 2 A schematic structural diagram of a socket-type pier seat according to an embodiment of the present invention from another angle;

[0026] Figure 3 2 is a schematic structural diagram of a first positioning assembly and a second positioning assembly in one embodiment of the present invention;

[0027] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0028] In the picture:

[0029] 1. Base; 101. Socket;

[0030] 2. First positioning assembly; 201. Movable positioning block; 202. Guide ramp;

[0031] 3. Second positioning assembly; 301. Rack; 302. Driving gear; 303. Sector gear; 304. Limiting column; 305. Tension spring; 306. Boss; 307. Latch; 308. Hanging hole;

[0032] 4. Guide rod;

[0033] 5. Spring;

[0034] 6. Roller. DETAILED DESCRIPTION

[0035] It should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0036] The following will be combined with the Figure 1-4 , the present invention is further described.

[0037] In the embodiment of the present invention, Figure 1-Figure 3As shown, the socket-type pier seat comprises: a base 1, a first positioning assembly 2 and a second positioning assembly 3; the base 1 is provided with a socket 101; the first positioning assembly 2 comprises two positioning blocks, the two positioning blocks are relatively arranged in the socket 101 to form a positioning space therebetween, at least one of the two positioning blocks is a movable positioning block 201, and the movable positioning block 201 can move relative to the base 1 to adjust the size of the positioning space; the second positioning assembly 3 comprises a rack 301, a driving gear 302 and a fan gear 303, the rack 301 is arranged along the movement direction of the movable positioning block 201, the driving gear 302 is rotatably arranged on the movable positioning block 201 and meshes with the rack 301, the fan gear 303 is rotatably arranged on the movable positioning block 201, and has a limit position on its rotation stroke so that the fan gear 303 is meshed with the driving gear 302, and an avoidance position so that the fan gear 303 is separated from the driving gear 302;

[0038] At the limit position, the movable positioning block 201 is used to apply a first force to the sector gear 303 through the driving gear 302, so that the driving gear 302 and the sector gear 303 are continuously engaged, and the movable positioning block 201 has a first movement displacement value;

[0039] At the avoidance position, the movable positioning block 201 is used to apply a second force to the driving gear 302, so that the driving gear 302 and the rack 301 remain in meshing, and the movable positioning block 201 has a second motion position value;

[0040] The first motion displacement value is smaller than the second motion displacement value, so that the size of the positioning space at the first motion displacement value is smaller than its size at the second motion displacement value.

[0041] Specifically, in this embodiment, the base 1 comprises an upper portion and a lower portion connected in a vertical direction. The upper portion is formed with a socket 101 for accommodating an insert; the lower portion is formed with a boss 306 structure to improve the overall stability of the base 1. Furthermore, the lower portion can be cast from concrete, and increasing the counterweight there can also improve the overall stability of the base 1.

[0042] In this embodiment, the socket 101 described above has a width direction and a length direction, and two notches are relatively provided along the width direction of the socket 101, which are used to pass through the socket 101 in this direction so as to accommodate larger inserts. Two positioning blocks are symmetrically provided along its length direction, and a positioning space is constructed between the two positioning blocks to clamp the insert in the positioning space. In addition, in order to improve the adaptability and flexibility of the pier, one of the two positioning blocks described above can be slidably installed at the socket 101, so that the positioning block can slide relative to the base 1 under the action of external force, thereby adjusting the size of the positioning space according to the sliding direction and distance of the positioning block. Of course, in order to more flexibly adjust the size of the positioning space, such as Figure 1 As shown, in this embodiment, both of the aforementioned positioning blocks are configured as movable positioning blocks 201, allowing them to move relative to the base 1. The two movable positioning blocks 201 can slide toward each other under the influence of an external force and automatically return to their original position when the external force is removed. During operation, as the insert is inserted into the positioning space, the opposing sides of the insert push the corresponding movable positioning blocks 201, ultimately allowing the insert to enter the positioning space and be held by the two movable positioning blocks 201.

[0043] In this embodiment, since the force acting on the movable positioning block 201 is the thrust of the insert, when the insert is displaced along the length direction, the force will be continuously transmitted to the movable positioning block 201 on the same side, causing the movable positioning block 201 to continue to move and loosen or release the positioning of the insert. To avoid the above situation, this embodiment provides a second positioning component 3 at each movable positioning block 201 (that is, the number of second positioning components 3 is the same as the number of movable positioning blocks 201. Since there are two movable positioning blocks 201 in this embodiment, the second positioning components 3 mentioned above are also provided in two). Figure 1 、 Figure 3 As shown, the second positioning assembly 3 includes a rack 301, a driving gear 302, and a sector gear 303. The rack 301 is arranged at the socket 101 and extends along its length (to reduce consumables, the two movable positioning blocks 201 in this embodiment share the same rack 301). The gear is rotatably arranged at the movable positioning block 201 and meshes with the rack 301. In this way, when the insert is inserted into the positioning space, it can push the movable positioning block 201 to move along the length direction. With the cooperation of the rack 301 and the driving gear 302, the size of the positioning space can be flexibly adjusted to accommodate the installation requirements of different inserts. At the same time, the cooperation between the rack 301 and the driving gear 302 makes its movement controllable, improving positioning accuracy.

[0044] Furthermore, the sector gear 303 is rotatably mounted on the movable positioning block 201. Under the action of an external force, the sector gear 303 can be rotated forward and reversed to engage or disengage with the driving gear 302, thereby forming a limited position for engagement and a relief position for disengagement. When the sector gear 303 is in the limited position, it engages with the driving gear 302, forming a mechanical self-locking mechanism to prevent loosening. Conversely, in the relief position, the driving gear 302 is separated from the sector gear 303, and the movable positioning block 201 generates a larger range of second motion displacement values, quickly adapting to inserts of different sizes and eliminating the need for manual disassembly of connecting components such as tension bolts. Furthermore, when in the limited position and the insert expands due to heat, the expansion force can push the movable positioning block 201 to generate a small first motion displacement value, thereby releasing internal stress and preventing deformation or damage. That is, since the first motion displacement value is small, the movable positioning block 201 can slightly release the clamping pressure to avoid excessive internal stress when the insert cannot recover its shape due to thermal expansion; at the same time, the self-locking property of the gear meshing can prevent loosening, and can also allow a certain amount of deformation and small displacement, thereby compensating for the displacement caused by thermal expansion and achieving dynamic adjustment. Of course, the thermal expansion force mentioned above should be greater than the friction force and preload force of the gear meshing. In addition, in order to prevent dust and avoid accidental touch, a shell can be provided outside the second positioning component 3 to at least partially cover the second positioning component 3, and an operating port can be provided at the corresponding position of the shell to provide an operating space.

[0045] In this embodiment, the size of the positioning space is adjusted according to the insert by moving the movable positioning block 201 to improve the applicability and flexibility of the pier; and the second positioning component 3 is used to cooperate with the movable positioning block 201 to achieve dynamic distance adjustment, forming a dual positioning mode. On the one hand, a large range of rapid adjustments can be made according to the size of the insert; on the other hand, the expansion force of the insert itself can be used to cause the movable positioning block 201 to produce a small displacement to release the clamping force; in this process, the engagement of the driving gear 302 and the sector gear 303 can play a certain range of self-locking ability, thereby avoiding loosening.

[0046] like Figure 3 、 Figure 4As shown, in one embodiment, the second positioning assembly 3 further includes a limiting post 304 and a tension spring 305. The limiting post 304 is disposed on the sector gear 303, and the ends of the tension spring 305 are connected to the limiting post 304 and the movable positioning block 201, respectively, to cause the sector gear 303 to move toward the limiting position when it is in the avoidance position. Specifically, to enable the sector gear 303 to rotate forward and reverse, this embodiment provides a limiting post 304 on the sector gear 303. By moving the limiting post 304, it can drive the sector gear 303 to rotate forward and reverse, thereby reaching the limiting position or the avoidance position. In addition, in order to make the sector gear 303 automatically reset to the limit position when it is in the avoidance position, this embodiment provides a tension spring 305 at the movable positioning block 201, and uses the two ends of the tension spring 305 to connect the movable positioning block 201 and the limit column 304 respectively, so that the sector gear 303 can be in a stretched state when it is in the avoidance position, and after the sector gear 303 is released, the tension spring 305 can be used to automatically reset the sector gear 303 to the limit position, so that the sector gear 303 can be meshed with the driving gear 302 without the action of external force.

[0047] Further, if Figure 4 As shown, in one embodiment, the limiting post 304 is provided with a boss 306, and the tension spring 305 is connected to the boss 306. Specifically, to facilitate the installation of one end of the tension spring 305 on the limiting post 304, the limiting post 304 in this embodiment is integrally formed with the boss 306, allowing one end of the tension spring 305 to be connected to the boss 306. The provision of the boss 306 also facilitates the manipulation of the limiting post 304, avoiding the situation where the limiting post 304 has a certain manipulation dead angle due to the limited installation position. Of course, a boss 306 can also be provided on the movable positioning block 201 for connecting the other end of the tension spring 305.

[0048] Further, if Figure 4As shown, in one embodiment, the movable positioning block 201 and the limiting post 304 are both provided with a socket, into which a latch 307 can be inserted, thereby positioning the limiting post 304 and limiting the sector gear 303 to the avoidance position. Specifically, since the limiting post 304 needs to be moved to place the sector gear 303 in the avoidance position, in order to keep it in the avoidance position, this embodiment provides a socket at the corresponding position of the movable positioning block 201 and the limiting post 304, into which the latch 307 can be inserted. Thus, the latch 307 can be used to fix the limiting post 304 and the movable positioning block 201 relative to each other, thereby limiting the sector gear 303 to the avoidance position. Conversely, by pulling out the latch 307, the sector gear 303 can be moved to the limit position under the action of the tension spring 305. Preferably, the latch 307 is provided with a hanging hole 308, and a rope can be tied to the hanging hole 308, and the latch 307 can be tied to the movable positioning block 201 with the rope to avoid loss.

[0049] like Figure 1-Figure 3 As shown, in one embodiment, the movable positioning block 201 is provided with a guide rod 4 that movably extends through the base 1. Specifically, to enable the movable positioning block 201 to move along a predetermined path, this embodiment employs a guide rod 4 disposed at the movable positioning block 201. This guide rod 4 is disposed along the length of the base 1 and extends through the base 1 with a gap therethrough. This allows the movable positioning block 201 to move only along the length of the socket 101, guided and constrained by the guide rod 4. Of course, to prevent the guide rod 4 from separating from the base 1, a stopper may be provided at the end of the guide rod 4, configured to abut or separate from the base 1, thereby limiting the position of the guide rod 4.

[0050] Further, if Figure 1-Figure 3 As shown, in one embodiment, the guide rod 4 is provided with a spring 5 on its outer surface, and the two ends of the spring 5 are respectively connected to the movable positioning block 201 and the base 1. Specifically, in order to make the movable positioning block 201 automatically reset after moving; this embodiment is achieved by providing a spring 5 on the outer surface of the guide rod 4, and the two ends of the spring 5 are respectively connected to the movable positioning block 201 and the base 1, so that the movable positioning block 201 can continuously compress the spring 5 during the movement process, and the spring 5 is used to automatically reset the movable positioning block 201 after the external force disappears. In addition, the spring 5 is used to connect the movable positioning block 201 and the base 1 to avoid the formation of a gap between the movable positioning block 201 and the insert, which would render the positioning ineffective. Preferably, the guide rod 4 extends along the movement direction of the movable positioning block 201, and the deformation direction of the spring 5 is parallel to the movement direction of the movable positioning block 201.

[0051] like Figure 2As shown, the movable positioning block 201 is provided with a plurality of rollers, which can move with the movable positioning block 201 , and the rollers and the driving gear 302 are arranged on opposite sides of the movable positioning block 201 to improve the stability and movement coordination of the movable positioning block 201 .

[0052] like Figure 1 、 Figure 2 As shown, in one embodiment, the socket 101 is an upwardly open structure, and the movable positioning block 201 is formed with a guide slope 202 arranged upwardly. Specifically, since the insert is inserted into the socket 101 from top to bottom, the socket 101 is set to a structure that opens upward; guide slopes 202 are provided on the opposite end faces of the two movable positioning blocks 201. The guide slopes 202 are upwardly inclined and are used to cooperate with the descending insert so that the insert can quickly push the movable positioning block 201 to move to both sides. In other embodiments, a support surface can also be provided at the bottom of the movable positioning block 201. The support surface is a planar structure arranged in the up-down direction, which is used to fit with the side of the insert, increase the contact area with the insert, and improve its stability in the positioning space.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. Socket-type pier, characterized in that: include: A base having a socket; a first positioning assembly comprising two positioning blocks, the two positioning blocks being disposed opposite each other in the socket to form a positioning space therebetween, at least one of the two positioning blocks being a movable positioning block, the movable positioning block being movable relative to the base to adjust the size of the positioning space; A plurality of second positioning assemblies, comprising a rack, a driving gear, and a sector gear, wherein the rack is arranged along the movement direction of the movable positioning block, the driving gear is rotatably arranged on the movable positioning block and meshes with the rack, and the sector gear is rotatably arranged on the movable positioning block and has a limit position in its rotation stroke for meshing the sector gear with the driving gear, and an avoidance position for separating the sector gear from the driving gear; At the limit position, the movable positioning block is used to apply a first force to the sector gear through the driving gear, so that the driving gear and the sector gear are continuously meshed, and the movable positioning block has a first movement displacement value; At the avoidance position, the movable positioning block is used to apply a second force to the driving gear, so that the driving gear and the rack remain engaged, and the movable positioning block has a second motion position value; The first motion displacement value is smaller than the second motion displacement value, so that the size of the positioning space at the first motion displacement value is smaller than its size at the second motion displacement value.

2. The spigot-type pier according to claim 1, characterized in that: The second positioning assembly also includes a limit column and a tension spring. The limit column is provided on the sector gear, and the two ends of the tension spring are respectively connected to the limit column and the movable positioning block, so that when the sector gear is in the avoidance position, it has a tendency to move toward the limit position.

3. The socket-type pier according to claim 2, characterized in that: The limiting column is provided with a boss, and the tension spring is connected to the boss.

4. The socket-type pier according to claim 2, characterized in that: The movable positioning block and the limiting column are both provided with a socket, and a pin can be inserted into the socket to position the limiting column and limit the sector gear to the avoidance position.

5. The socket-type pier according to claim 4, characterized in that: The latch is provided with a hanging hole.

6. The spigot-type pier according to any one of claims 1 to 5, characterized in that: The movable positioning block is provided with a guide rod, and the guide rod is movably passed through the base.

7. The spigot-type pier according to claim 6, characterized in that: The outer sleeve of the guide rod is provided with a spring, and two ends of the spring are respectively connected to the movable positioning block and the base.

8. The spigot-type pier according to claim 7, characterized in that: The guide rod extends along the moving direction of the movable positioning block, and the deformation direction of the spring is parallel to the moving direction of the movable positioning block.

9. The spigot-type pier according to claim 1, characterized in that: The movable positioning block is provided with a plurality of rollers.

10. The spigot-type pier according to claim 1, characterized in that: The socket is an upwardly opening structure, and the movable positioning block is formed with a guide inclined surface inclined upward; and / or The movable positioning block is provided with a supporting surface along the up and down directions.

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