Locking disc structure of circular anti-permeability instrument

Abstract

The utility model discloses a locking disc structure of a circular anti-permeability instrument, which is mounted on an anti-permeability instrument detection table, is used for locking two adjacent layers of anti-permeability instrument detection tables, and comprises a locking disc, the inner side of the locking disc is integrally provided with lock tongues, and the number of the lock tongues is the same as that of locking rods; one side of the locking disc is also provided with a group of rotary driving mechanisms, and the locking disc is driven to rotate through the rotary driving mechanisms, so that the lock tongue is embedded into or separated from the locking groove in the locking rod. The locking disc structure is installed on the back face of the anti-permeability instrument detection table, the locking disc is driven by the rotary driving mechanism to rotate, the spring bolt is embedded into the locking groove in the locking rod of the next layer, locking of the two layers of the anti-permeability instrument detection table is achieved, the space of the back face of the anti-permeability instrument detection table is utilized, and the anti-permeability instrument detection table is locked. Therefore, the arrangement of a plurality of test mold seats and water paths on the front surface of the impermeability instrument detection table is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of impermeability testers, and particularly relates to a locking disc structure of a circular impermeability tester. Background Art

[0002] Concrete is an artificial stone widely used in construction projects. For some buildings, such as hydraulic structures, underwater, underground and other construction projects, the buildings are required to have special impermeability performance. The impermeability performance refers to the performance of the materials used in the structure to resist the penetration of water and other liquid media under the action of pressure.

[0003] The concrete impermeability tester is mainly used for the test of the impermeability performance of concrete and the determination of the impermeability grade, so it has been widely used in relevant production, construction, design, teaching and research departments.

[0004] The concrete impermeability tester is designed according to the hydraulic principle, pressurized by a water pump, and connected with an accumulator, a control valve, a test mold base, etc. through pipelines. The pressure is output from the water pump into the accumulator and then transported to each specimen system for loading tests.

[0005] For a multi-layer concrete impermeability tester, it needs to unlock the test bench during each loading and unloading process, and it is necessary to ensure that the multi-layer test bench is always in a locked state during the test. Therefore, a locking structure needs to be configured for each layer of the test bench. Most of the existing multi-layer concrete impermeability testers adopt a bolt locking structure, which not only makes it difficult to ensure the safety of locking, but also has a relatively complex operation. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a locking disc structure of a circular impermeability tester to solve the deficiencies of the existing bolt locking structure of the test bench of the multi-layer impermeability tester.

[0007] To solve the above technical problems, the utility model provides a locking disc structure of a circular impermeability tester, which is installed on the test bench of the impermeability tester and is used to lock two adjacent layers of the test bench of the impermeability tester. The locking disc structure includes a locking disc, and the inner side of the locking disc is integrally provided with the same number of locking tongues as the locking rods.

[0008] One side of the locking disc is also provided with a set of rotary drive mechanisms, which drive the locking disc to rotate through the rotary drive mechanisms, so as to realize the engagement or separation of the locking tongues and the locking grooves on the locking rods.

[0009] Preferably, the locking disc structure is installed on the back of the test bench of the impermeability tester, and the locking disc is driven to rotate through the rotary drive mechanisms, so that the locking tongues are engaged with the locking grooves on the locking rods of the lower layer, thereby realizing the locking of two layers of the test bench of the impermeability tester.

[0010] Preferably, the locking disc is annular, with multiple locking tongues extending from the inner side of the ring towards the center, and the diameter of the ring is less than or equal to the diameter of the detection table of the impermeability tester.

[0011] Preferably, the locking disc is formed by splicing multiple arc-shaped rings, and each arc-shaped ring corresponds to a locking tongue.

[0012] Preferably, the rotary driving mechanism includes a rotary motor, a driving gear, and a rack; the rack is fixedly installed on one side of the locking disc, and the driving gear drives the rack engaged with it to rotate under the drive of the rotary motor, thereby driving the locking disc to rotate.

[0013] Preferably, the rotary driving mechanism further includes an anti-overrun mechanism for preventing the driving gear from over-running and disengaging from both ends of the rack;

[0014] The anti-overrun mechanism includes anti-overrun teeth located at both ends of the rack. The two anti-overrun teeth rotate unidirectionally at both ends of the rack through pin shafts respectively, and the heads of the two anti-overrun teeth are engaged with the driving gear, and the tails are connected by an anti-overrun tension spring; when the driving gear continuously rotates at any end of the rack, the anti-overrun teeth rotate around the pin shaft under the action of the driving gear and tilt towards the middle of the rack to avoid the rotation of the driving gear. When the driving gear rotates in the reverse direction, the anti-overrun teeth rotate around the pin shaft under the action of the driving gear and tilt towards the end of the rack. At this time, the middle of the anti-overrun teeth abuts against the end of the rack, making it unable to continue rotating outwards, thereby re-engaging the disengaged driving gear with the rack.

[0015] Preferably, the head of the anti-overrun tooth is a tooth, which is engaged with the driving gear. When the anti-overrun tooth cannot rotate, the position of the rack can be adjusted under the continuous rotation of the driving gear to re-engage it with the driving gear.

[0016] Preferably, the anti-overrun tension spring is connected between the two tails of the anti-overrun teeth, and under the action of the tension, it ensures that the two anti-overrun teeth are always in the anti-overrun state.

[0017] Preferably, the middle of the rack is rotatably connected to the rack seat through a pin shaft. As the locking disc rotates, the rack rotates around the pin shaft to adjust its angle, so that the linear rack is always completely engaged with the driving gear.

[0018] Preferably, the rack and the anti-overrun teeth at both ends are installed in the installation groove of the rack seat, and the rack and the anti-overrun teeth at both ends are installed on the same plane, so that the driving gear makes a natural transition between the rack and the anti-overrun teeth.

[0019] Compared with the prior art, the beneficial effects of the present utility model are:

[0020] 1. The locking disc structure of the present utility model is installed on the back of the impermeability tester detection table. The locking disc is driven to rotate by a rotary drive mechanism, so that the locking tongue is engaged with the locking groove on the lower layer of the locking rod, realizing the locking of two layers of impermeability tester detection tables. By utilizing the space on the back of the impermeability tester detection table, it is possible to ensure that the layout of multiple test die seats and their water circuits on the front of the impermeability tester detection table is not affected.

[0021] 2. Moreover, the new locking disc of the present utility model is annular, and multiple locking tongues extend from the inner side of the ring towards the center, and the diameter of this ring is less than or equal to the diameter of the impermeability tester detection table. In this way, the locking disc can also achieve the locking function without exceeding the space of the impermeability tester detection table, further reducing the volume of the entire circular impermeability tester.

[0022] 3. Since the rotation angle of the locking disc is limited and only the locking tongue needs to be moved horizontally, the rack can use either a linear rack or an arc rack. The rotary motor and the driving gear are located inside the locking disc. In this way, the rotary drive mechanism can also achieve the driving function without exceeding the space of the locking disc, further reducing the volume of the entire circular impermeability tester.

[0023] 4. Although the rotary motor adopted in the present utility model is a servo motor and its working time can be servo-controlled, during the long-term repeated forward and reverse rotation process, deviations will inevitably occur. In this case, the driving gear may be disengaged from the end of the rack. Once disengaged, it will affect the operation of the entire locking disc, causing the impermeability tester detection table of this layer to fail. And since the impermeability tester detection tables in the present utility model are all linked, if one layer fails, the impermeability tester detection tables of this layer and those below it will all lose the locking function. Therefore, the present utility model is provided with an anti-overrun mechanism. Even if deviations occur during the long-term repeated forward and reverse rotation process of the rotary motor, the anti-overrun mechanism can adjust the position of the rack in the first time to make it engaged with the driving gear and restore the normal operation of the locking disc. It is equivalent to adding a mechanical insurance to the locking disc, thus greatly reducing the failure rate of the impermeability tester. Description of the Drawings

[0024] Figure 1 is the installation schematic diagram of the locking disc provided by the present utility model in a circular impermeability tester;

[0025] Figure 2 is the structural schematic diagram of the locking disc provided by the present utility model;

[0026] Figure 3 is the partial schematic diagram of the locking disc provided by the present utility model;

[0027] Figure 4 is the structural schematic diagram of the anti-overrun mechanism provided by the present utility model;

[0028] Figure 5It is a schematic diagram of the anti-overrun state of the anti-overrun mechanism provided by the present utility model;

[0029] Figure 6 It is a schematic diagram of the avoidance state of the anti-overrun mechanism provided by the present utility model.

[0030] In the figure: 1, locking disc; 2, locking tongue; 3, rotary drive mechanism; 100, impermeability tester detection table; 200, locking rod; 301, rotary motor; 302, drive gear; 303, rack; 401, anti-overrun tooth; 402, anti-overrun tension spring. Specific embodiments

[0031] The following further detailed description is made on the present utility model in conjunction with the accompanying drawings and specific embodiments. According to the following description and the claims, the advantages and features of the present utility model will be clearer. It should be noted that the drawings are all in a very simplified form and use non-precise scales, only for the purpose of facilitating and clearly assisting in explaining the purpose of the embodiments of the present utility model.

[0032] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0033] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "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, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations. Embodiment

[0034] The present utility model provides a locking disc structure for a circular impermeability tester. Please refer to Figure 1 and Figure 2, installed on the impermeability tester detection table 100, used to lock two adjacent layers of impermeability tester detection tables 100, including a locking disc 1. An inner side of the locking disc 1 is integrally provided with the same number of locking tongues 2 as that of the locking rod 200. A set of rotary drive mechanisms 3 are further provided on one side of the locking disc 1. The locking disc 1 is driven to rotate by the rotary drive mechanisms 3, so as to realize the engagement or separation between the locking tongues 2 and the locking grooves on the locking rod 200.

[0035] Specifically, this locking disc structure is installed on the back of the impermeability tester detection table 100. The locking disc 1 is driven to rotate by the rotary drive mechanisms 3, so that the locking tongues 2 are engaged with the locking grooves on the lower layer of locking rod 200, realizing the locking of two layers of impermeability tester detection tables 100. By utilizing the space on the back of the impermeability tester detection table 100, the layout of multiple test mold seats and their waterways on the front of the impermeability tester detection table 100 can be not affected.

[0036] Furthermore, the locking disc 1 is annular. A plurality of locking tongues 2 extend from the inner side of the ring towards the center, and the diameter of this ring is less than or equal to the diameter of the impermeability tester detection table 100. In this way, the locking disc 1 can also realize the locking function without exceeding the space of the impermeability tester detection table 100, further reducing the volume of the entire circular impermeability tester.

[0037] Moreover, the locking disc 1 is formed by splicing a plurality of arc-shaped rings, and each arc-shaped ring corresponds to a locking tongue 2. This is beneficial to the processing and installation of the locking disc 1, and at the same time, the position of each locking tongue 2 can be adjusted separately during the installation process, so that each locking tongue 2 can accurately lock the corresponding locking rod 200.

[0038] Specifically, as Figure 3 and Figure 4 shown, the rotary drive mechanisms 3 include a rotary motor 301, a driving gear 302 and a rack 303. The rack 303 is fixedly installed on one side of the locking disc 1. The driving gear 302 is driven by the rotary motor 301 to drive the rack 303 engaged with it to rotate, thereby driving the locking disc 1 to rotate.

[0039] In one embodiment, the effective number of teeth of the rack 303 only needs to be greater than the width of the locking tongue 2. The locking disc 1 is driven to rotate by the rack 303 to realize the engagement or separation between the locking tongue 2 and the locking groove.

[0040] In one embodiment, since the rotation angle of the locking disc 1 is limited and only the locking tongue 2 needs to be moved horizontally, the rack 303 can use either a linear rack or an arc-shaped rack.

[0041] In one embodiment, the rotary motor 301 and the drive gear 302 are located inside the locking disc 1, so that the rotary drive mechanism 3 can also achieve the driving function without exceeding the space of the locking disc 1, further reducing the volume of the entire circular impermeability tester.

[0042] Furthermore, the rotary drive mechanism 3 further includes an anti-overrun mechanism for preventing the drive gear 302 from over-running and disengaging from the two ends of the rack 303; the anti-overrun mechanism includes anti-overrun teeth 401 located at the two ends of the rack 303, and the two anti-overrun teeth 401 are respectively rotatable unidirectionally at the two ends of the rack 303 through pin shafts, and the heads of the two anti-overrun teeth 401 are engaged with the drive gear 302, and the two tails are connected by an anti-overrun tension spring 402. As Figure 5 shown, when the drive gear 302 continuously rotates at any end of the rack 303, the anti-overrun teeth 401 rotate around the pin shaft under the action of the drive gear 302 and tilt towards the middle direction of the rack 303 to avoid the rotation of the drive gear 302. As Figure 6 shown, when the drive gear 302 rotates in the reverse direction, the anti-overrun teeth 401 rotate around the pin shaft under the action of the drive gear 302 and tilt towards the end direction of the rack 303. At this time, the middle part of the anti-overrun teeth 401 abuts against the end of the rack 303, making it impossible to continue rotating outwards, so as to re-engage the disengaged drive gear 302 with the rack 303.

[0043] Furthermore, the head of the anti-overrun tooth 401 is a tooth, which is engaged with the drive gear 302. When the anti-overrun tooth 401 cannot rotate, under the continuous rotation of the drive gear 302, the position of the rack 303 can be adjusted to re-engage it with the drive gear 302. Although the rotary motor 301 used in the present invention is a servo motor and its working time can be servo-controlled, during the long-term repeated forward and reverse operations, deviations will inevitably occur. In this way, the drive gear 302 may disengage from the end of the rack 303. Once disengaged, it will affect the operation of the entire locking disc, causing the impermeability tester detection table 100 of this layer to fail. And because the impermeability tester detection tables 100 in the present invention are all linked, once one layer fails, the impermeability tester detection tables 100 of this layer and the layers below it will all lose the locking function. Therefore, the present invention adds an anti-overrun mechanism. Even if deviations occur during the long-term repeated forward and reverse operations of the rotary motor 301, the anti-overrun mechanism can adjust the position of the rack 303 in the first time to engage it with the drive gear 302 and restore the normal operation of the locking disc. It is equivalent to adding a mechanical insurance to the locking disc, which greatly reduces the failure rate of the impermeability tester.

[0044] Further, the anti-overrun tension spring 402 is connected between the two tails of the anti-overrun tooth 401, and under the action of the pulling force, the two anti-overrun teeth 401 are always in the anti-overrun state, thus avoiding the problem that the two anti-overrun teeth 401 cannot be reset after entering the avoidance state under the action of the driving gear 302.

[0045] Further, the middle part of the rack 303 is rotatably connected to the rack seat through a pin shaft. As the locking disc 1 rotates, the rack 303 rotates around the pin shaft to adjust its angle, so that the linear rack 303 is always in complete meshing with the driving gear 302.

[0046] Further, the rack 303 and the anti-overrun teeth 401 at both ends are both installed in the installation groove of the rack seat, and the rack 303 and the anti-overrun teeth 401 at both ends are installed on the same plane, so that the driving gear 302 makes a natural transition between the rack 303 and the anti-overrun teeth 401.

[0047] The above description is only a description of the preferred embodiments of the present invention, and does not limit the scope of the present invention in any way. Any changes and modifications made by those of ordinary skill in the art of the present invention based on the above disclosure fall within the protection scope of the claims.

Claims

1. A locking disc structure of a circular impermeability tester, which is installed on the impermeability tester detection table (100) and is used to lock two adjacent layers of the impermeability tester detection table (100), is characterized in that It includes a locking disc (1), and the inner side of the locking disc (1) is integrally provided with the same number of locking tongues (2) as the locking rod (200). One side of the locking disc (1) is further provided with a set of rotary driving mechanisms (3), and the rotary driving mechanisms (3) drive the locking disc (1) to rotate, so as to realize the engagement or separation between the locking tongues (2) and the locking grooves on the locking rod (200).

2. The locking disc structure of a circular impermeability tester according to claim 1, characterized in that, It is installed on the back of the impermeability tester detection table (100), and the rotary driving mechanisms (3) drive the locking disc (1) to rotate, so that the locking tongues (2) are engaged with the locking grooves on the lower layer of the locking rod (200), realizing the locking of two layers of impermeability tester detection tables (100).

3. The locking disc structure of a circular impermeability tester as described in claim 1, characterized in that, The locking disc (1) is annular, and a plurality of locking tongues (2) extend from the inner side of the ring to the center, and the diameter of the ring is less than or equal to the diameter of the impermeability tester detection table (100).

4. The locking disc structure of a circular impermeability tester according to claim 3, characterized in that, The locking disc (1) is formed by splicing a plurality of arc-shaped rings, and each arc-shaped ring corresponds to a locking tongue (2).

5. The locking disc structure of a circular impermeability tester according to claim 4, characterized in that, The rotary driving mechanism (3) includes a rotary motor (301), a driving gear (302) and a rack (303); the rack (303) is fixedly installed on one side of the locking disc (1), and the driving gear (302) is driven by the rotary motor (301) to drive the rack (303) engaged with it to rotate, thereby driving the locking disc (1) to rotate.

6. The locking disc structure of a circular impermeability tester according to claim 5, characterized in that, The rotary driving mechanism (3) further includes an anti-overrun mechanism for preventing the driving gear (302) from over-running and disengaging from both ends of the rack (303). The anti-overrun mechanism includes anti-overrun teeth (401) located at both ends of the rack (303). The two anti-overrun teeth (401) rotate unidirectionally at both ends of the rack (303) through pins respectively, and the heads of the two anti-overrun teeth (401) are engaged with the driving gear (302), and the tails of the two are connected by an anti-overrun tension spring (402); when the driving gear (302) continuously rotates at any end of the rack (303), the anti-overrun teeth (401) rotate around the pin under the action of the driving gear (302) and tilt towards the middle direction of the rack (303), avoiding the rotation of the driving gear (302). When the driving gear (302) rotates in the reverse direction, the anti-overrun teeth (401) rotate around the pin under the action of the driving gear (302) and tilt towards the end direction of the rack (303). At this time, the middle part of the anti-overrun teeth (401) abuts against the end of the rack (303), making it unable to continue to rotate outwards, so as to re-engage the disengaged driving gear (302) with the rack (303).

7. The locking disc structure of a circular impermeability tester according to claim 6, characterized in that, The head of the anti-overrun tooth (401) is a tooth, which is engaged with the driving gear (302). When the anti-overrun tooth (401) cannot rotate, under the continuous rotation of the driving gear (302), the position of the rack (303) can be adjusted to re-engage it with the driving gear (302).

8. The locking disc structure of a circular impermeability tester according to claim 6, characterized in that, The anti-overrun tension spring (402) is connected between the two tails of the anti-overrun teeth (401), and under the action of the tension, it ensures that the two anti-overrun teeth (401) are always in the anti-overrun state.

9. The locking disc structure of a circular impermeability tester according to claim 6, characterized in that, The middle part of the rack (303) is rotationally connected to the rack seat through a pin shaft. As the locking disc (1) rotates, the rack (303) rotates around the pin shaft to adjust its angle, so that the straight rack (303) is always in complete mesh with the driving gear (302).

10. The locking disc structure of a circular impermeability tester according to claim 9, characterized in that, The rack (303) and the anti-overrun teeth (401) at both ends are both installed in the installation groove of the rack seat, and the rack (303) and the anti-overrun teeth (401) at both ends are installed on the same plane, so that the driving gear (302) makes a natural transition between the rack (303) and the anti-overrun teeth (401).

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