Temporary mixing, twisting and loading device for shaft

Abstract

The invention is suitable for the technical field of mine construction, and provides a shaft temporary mixing, twisting and loading device which comprises a supporting bottom plate, a balance mechanism, a locking assembly, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism and a lifting mechanism, and the supporting bottom plate is provided with a plurality of supporting legs which are vertically distributed on the outer side of the supporting bottom plate in an array mode; a plurality of locking assemblies are arranged on the supporting bottom plate, connecting assemblies are further arranged corresponding to the locking assemblies, each connecting assembly is movably matched with the corresponding locking assembly, a supporting assembly and a charging barrel are further arranged at the bottom of each supporting leg, and the charging barrels are detachably connected to the supporting bottom plate. The locking assemblies are arranged on the supporting bottom plate, so that the locking assemblies are located at the same horizontal height and are subsequently placed on the supporting bottom plate, it can be guaranteed that the locking assemblies are stably and horizontally placed under supporting of the locking assemblies, and therefore it is guaranteed that when gangue is subsequently loaded into the charging barrel, the charging barrel does not shake or incline.

Description

Technical Field

[0001] The invention belongs to the technical field of mine construction, and in particular relates to a temporary mixed twisting loading device for a shaft. Background Art

[0002] Temporary modification of the lifting method refers to the change of the lifting method after the shaft construction is in place and the construction space at the bottom of the shaft is formed. Temporary modification of the lifting method is an important link in mine construction. Generally, the main shaft and the ventilation shaft are selected for temporary modification to meet the needs of gangue discharge. In the process of underground gangue discharge, a bucket is generally used in conjunction with a hoist to lift and transport the gangue loaded in the bucket. At present, the traditional manual method is used in the process of loading gangue. It is easy to overload during loading, which will cause the hoist to overload during lifting.

[0003] The Chinese utility model patent with publication number CN219031621U is a temporary loading device, including an installation box, a loading plate is movably installed inside the installation box, a plurality of weighing sensors are installed between the bottom of the inner wall of the installation box and the bottom of the loading plate, a loading bucket for loading gangue is installed on the top of the loading plate, an indicator light is installed on the front of the installation box, and a processing center is installed on one side of the indicator light. The utility model can weigh the gangue inside the loading bucket through a plurality of weighing sensors during the loading process through the arrangement of the installation box, the loading bucket, the loading plate and the weighing sensor, thereby achieving quantitative loading, avoiding the overloading of the elevator, enabling the elevator to operate stably, and reducing safety hazards in production.

[0004] However, the above-mentioned comparative documents have the following technical problems in actual use:

[0005] 1. The above-mentioned device is usually used for construction at the bottom of the mine. Since the bottom of the mine cannot be completely flat during mining, the bottom of the mine will be uneven. When the above-mentioned device is placed at the bottom of the mine, it lacks a correction and anti-tilt device at its bottom, so the above-mentioned device cannot be placed horizontally at the bottom of the mine. As a result, when the gangue is loaded into the loading bucket, it will tilt, affecting the accuracy of the subsequent weighing component measurement data.

[0006] Second, since the installation box and the loading bucket of the above-mentioned device are fixedly connected, the overall weight of the above-mentioned device is relatively large. Therefore, the weight of the gangue that the above-mentioned device can bear is limited within the preset lifting weight range of the lifting equipment, and the gangue needs to be lifted repeatedly, which invisibly increases the workload. Summary of the invention

[0007] The present invention provides a temporary mixed-twisting loading device for a shaft, aiming to solve the problem mentioned in the above background technology that the above device cannot ensure horizontal placement on the uneven bottom of a mine, resulting in the weighing component being unable to accurately measure the weight of the gangue it carries, and at the same time, the overall structural design of the above device results in the weight of the gangue it can carry being effective, and the gangue needs to be lifted repeatedly, which reduces efficiency and increases workload.

[0008] The present invention is implemented as follows: a temporary mixed-twisting loading device for a wellbore comprises: a supporting base plate, on the outer side of which a plurality of supporting legs are arranged vertically in an array, a balancing mechanism, which comprises: a locking assembly movably connected to the plurality of supporting legs, and on the supporting base plate, a connecting assembly is also arranged corresponding to the plurality of locking assemblies, and each of the connecting assemblies is movably matched with the corresponding locking assembly, wherein a supporting assembly is also arranged at the bottom of each of the supporting legs, a charging barrel, which is detachably connected to the supporting base plate, and a clamping mechanism, which comprises: a driving assembly arranged on the supporting base plate, and a clamping assembly is also movably connected to the driving assembly, through which the clamping assembly Used to achieve the stability of the loading bucket on the supporting base plate; in this scheme, when the construction workers are carrying out gangue processing work at the bottom of the mine, multiple supporting legs are vertically inserted into the ground at the bottom of the mine through the supporting assemblies at the bottom, and then the installation position of the locking assemblies on each supporting leg is adjusted according to the installation position of the supporting legs and the flatness of the ground, so that multiple locking assemblies are at the same horizontal height, and then the supporting base plate is fixed on multiple locking assemblies through the connecting assembly to ensure the stability of the supporting base plate during operation, and then the loading bucket loaded with gangue is placed on the supporting base plate, and fixed by a clamping mechanism to ensure the stability of the loading bucket when the gangue is subsequently loaded.

[0009] Preferably, the locking assembly includes: two strip grooves are symmetrically provided on the outer wall of the support foot along the longitudinal direction, and a plurality of through holes are provided on the inner wall of each strip groove along its height at equal intervals, and the outer side of the support foot is also sleeved with a connecting sleeve for sliding cooperation, and a protrusion is provided on the inner peripheral wall of the connecting sleeve corresponding to the two strip grooves, and the two protrusions are provided with slot holes that penetrate through the outer wall of the connecting sleeve, and a locking pin passes through the two slot holes and the through holes corresponding thereto; in this scheme, the connecting sleeve is longitudinally slid on the outer wall of the supporting foot so that the connecting sleeve moves to a specified height, and during the sliding process of the connecting sleeve, the protrusion on the inner peripheral wall thereof slides in the strip groove. When the sliding sleeve moves to the specified height, one end of the locking pin is inserted from a slot hole on one side of the outer wall of the connecting sleeve, passes through the through hole on the supporting foot corresponding to its height, and then passes through the slot hole on the other side, so as to limit the height position of the connecting sleeve, thereby ensuring the subsequent support for the stability of the supporting base plate.

[0010] Preferably, each of the connecting components comprises: a connecting plate fixedly connected to the side wall of the supporting base plate, and a connecting block is also fixedly connected to the side wall of the connecting plate away from the supporting base plate, a hole groove is opened in the connecting block, the inner diameter of the hole groove and the outer diameter of the supporting leg are transitionally matched, and the connecting block overlaps the connecting sleeve; in this scheme, the side wall of the supporting base plate is provided with a same number of connecting plates and connecting blocks corresponding to multiple supporting legs, the hole groove in each connecting block is sleeved on the outer side of the corresponding supporting leg, and the bottom end of the connecting block overlaps the connecting sleeve, because the horizontal heights of the multiple connecting sleeves are consistent during installation, the subsequent supporting base plate can be placed horizontally.

[0011] Preferably, each of the support components comprises: a fixing ring fixedly connected to the outer wall of the support leg, and a plurality of auxiliary legs are rotatably connected to the fixing ring at equal angles, a threaded portion is formed on the outer wall of the support leg below the fixing ring, and a sliding screw sleeve is threadedly connected to the threaded portion, a sink groove is formed on the side wall of the sliding screw sleeve, and an annular block is rotatably connected in the sink groove, and a connecting strip is hinged between each of the auxiliary legs and the annular block, wherein when the sliding screw sleeve moves toward the fixing ring, the connecting strip drives the auxiliary legs to unfold; in this scheme, the fixing ring is arranged in the strip groove The bottom of the frame is provided with a screw thread, and the threaded portion is located on the outer wall of the supporting leg at the bottom of the fixing ring. Under normal conditions, the sliding screw sleeve is in a position away from the fixing ring. At this time, multiple auxiliary legs are attached to the outer wall of the supporting leg. When the construction personnel manually rotate the sliding screw sleeve, it will move along the threaded portion toward the fixing ring. During the movement of the sliding screw sleeve, the annular block will drive the connecting strip to control the multiple auxiliary legs to flip and unfold around the fixing ring. The end of the auxiliary leg away from the fixing ring flips in the direction away from the supporting leg. Subsequently, the auxiliary leg and the supporting leg are placed on the ground to achieve stable support for the supporting leg and ensure that it stands upright on the ground.

[0012] Preferably, a placement groove that can partially accommodate the charging barrel is opened on the top wall of the supporting base plate, and the driving assembly includes: two first mounting seats symmetrically arranged on one side of the placement groove, and a bidirectional screw is rotatably connected between the two first mounting seats, and two second mounting seats are symmetrically arranged on the other side of the placement groove, and a sliding rod is fixedly connected between the two second mounting seats; in this scheme, the charging barrel and the supporting base plate are detachably connected, and when the charging barrel is placed, its bottom end portion is accommodated in the placement groove, and subsequently, the bidirectional screw is rotated to control the clamping assemblies on both sides to approach / move away from the placement groove, thereby realizing the installation and fixation of the charging barrel.

[0013] Preferably, the clamping assembly includes: clamping blocks symmetrically arranged on both sides of the placement slot, and arc-shaped clamping grooves that fit the outer wall of the charging barrel are opened on the end surfaces of the two clamping blocks that are close to each other, and both ends of the clamping blocks are fixedly connected with connecting seats, one side of the connecting seat is screwed on one side threaded segment of the bidirectional screw, and the other side of the connecting seat is slidably connected to the sliding rod; in this scheme, when the bidirectional screw rotates, the connecting seats screwed on the threaded segments on both sides thereof respectively control the clamping blocks connected thereto to move toward or away from each other, and when the two clamping blocks move toward the placement slot, the arc-shaped clamping grooves formed on their side walls are used to clamp the outer wall of the charging barrel to ensure that it will not shake or tilt when loading gangue. At the same time, when the two clamping blocks move away from the placement slot, the arc-shaped clamping grooves on both sides release the clamping of the charging barrel, which can facilitate the subsequent lifting of the charging barrel full of gangue.

[0014] Preferably, a loading block is also provided on the side wall of the supporting base plate, and a receiving groove is also provided on the loading block, in which the supporting legs can be accommodated; in this scheme, the purpose of providing the loading block is to be able to store multiple supporting legs when the device is not in use, thereby avoiding the loss of the supporting legs and affecting the subsequent normal operation of the device.

[0015] Compared with the prior art, the present invention has the following beneficial effects: a temporary mixed twisting loading device for a wellbore of the present invention:

[0016] 1. The device adjusts the longitudinal position of the locking assembly on each supporting leg respectively, so that multiple locking assemblies are located at the same horizontal height. Subsequently, when the supporting base plate is placed, it can be ensured that it is stably placed horizontally under the support of multiple locking assemblies, thereby ensuring that when the gangue is loaded into the loading barrel later, the loading barrel will not shake or tilt.

[0017] 2. This device can increase the contact area between each supporting leg and the ground by arranging a supporting assembly at the bottom of each supporting leg, thereby ensuring that the supporting leg is vertically and stably installed on the uneven bottom ground of the mine, thereby facilitating the subsequent stable loading of gangue.

[0018] 3. The device installs the loading barrel and the supporting bottom plate in a detachable manner. When lifting the loading barrel later, the clamping mechanism can be loosened to separate the loading barrel and the supporting bottom plate. On the one hand, the weight of the device itself is reduced during lifting, and on the other hand, as much gangue as possible can be loaded and lifted within a fixed lifting weight range. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the present invention;

[0020] Figure 2is a schematic diagram of a connecting sleeve and a locking pin in the present invention;

[0021] Figure 3 is a schematic diagram of a support assembly in the present invention;

[0022] Figure 4 For the present invention Figure 3 A magnified schematic diagram of the structure at center A;

[0023] Figure 5 A top view of the supporting base plate of the present invention;

[0024] In the figure:

[0025] 1. Supporting bottom plate; 11. Placement slot; 12. Loading block; 121. Accommodation slot;

[0026] 2. Support legs;

[0027] 3. Balancing mechanism; 31. Locking assembly; 311. Strip groove; 312. Through hole; 313. Connecting sleeve; 314. Protrusion; 315. Slot hole; 316. Locking pin; 32. Connecting assembly; 321. Connecting plate; 322. Connecting block; 323. Hole groove;

[0028] 4. Support assembly; 41. Fixing ring; 42. Auxiliary legs; 43. Threaded portion; 44. Sliding screw sleeve; 45. Sinking groove; 46. Ring block; 47. Connecting strip;

[0029] 5. Loading barrel;

[0030] 6. Clamping mechanism; 61. Driving assembly; 611. First mounting seat; 612. Bidirectional screw; 613. Second mounting seat; 614. Sliding rod; 62. Clamping assembly; 621. Clamping block; 622. Arc-shaped clamping groove; 623. Connecting seat. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0032] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0033] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] See also Figure 1-5 The present invention provides a technical solution: a temporary mixed-twisting loading device for a wellbore, comprising: a supporting base plate 1, on the outer side of which are vertically distributed a plurality of supporting legs 2 in an array, a balancing mechanism 3, which comprises: a locking assembly 31 movably connected to the plurality of supporting legs 2, and a connecting assembly 32 is also provided on the supporting base plate 1 corresponding to the plurality of locking assemblies 31, and each connecting assembly 32 is movably matched with the corresponding locking assembly 31, wherein a supporting assembly 4 is also provided at the bottom of each supporting leg 2, a charging barrel 5, which is detachably connected to the supporting base plate 1, and a clamping mechanism 6, which comprises: a driving assembly 61 provided on the supporting base plate 1, and a clamping assembly 62 is also movably connected to the driving assembly 61, and the clamping assembly 62 is used to achieve stability of the charging barrel 5 on the supporting base plate 1.

[0037] Specifically, at least one set of lifting devices is symmetrically arranged on the top outer wall of the charging barrel 5, and each lifting device includes two lifting ears fixedly connected to the outer wall of the charging barrel 5 and symmetrically arranged. The charging barrel 5 can be lifted by passing a lifting rope through the lifting ears.

[0038] In addition, based on the weighing component mentioned in the reference document mentioned in the above background technology, a weighing component can also be added to the present device to realize the weighing of the loading bucket 5 loaded with gangue. Specifically, the weighing sensor mentioned therein can be placed in the supporting base plate 1 at the bottom of the placement groove 11, and the display screen electrically connected to the weighing sensor is installed on the upper surface of the supporting base plate 1. The weight of the gangue can be accurately observed through the numerical value displayed on the display screen to ensure the normal operation of the lifting.

[0039] Furthermore, the locking assembly 31 includes: two strip grooves 311 are symmetrically provided on the outer wall of the supporting leg 2 in the longitudinal direction, and a plurality of through holes 312 are provided on the inner wall of each strip groove 311 at equal intervals along its height. A slidably fitting connecting sleeve 313 is also sleeved on the outer side of the supporting leg 2, and protrusions 314 are provided on the inner circumferential wall of the connecting sleeve 313 corresponding to the two strip grooves 311, and slots 315 are provided on the two protrusions 314 and penetrate to the outer wall of the connecting sleeve 313, and a locking pin 316 passes through the two slots 315 and the through holes 312 corresponding thereto.

[0040] Furthermore, each connecting component 32 includes: a connecting plate 321 fixedly connected to the side wall of the supporting base plate 1, and a connecting block 322 is also fixedly connected to the side wall of the connecting plate 321 away from the supporting base plate 1, and a hole groove 323 is opened in the connecting block 322, and the inner diameter of the hole groove 323 is transitionally matched with the outer diameter of the supporting leg 2, and the connecting block 322 is overlapped on the connecting sleeve 313.

[0041] Furthermore, each support assembly 4 includes: a fixing ring 41 fixedly connected to the outer wall of the support leg 2, and a plurality of auxiliary legs 42 are rotatably connected to the fixing ring 41 at equal angles, a threaded portion 43 is formed on the outer wall of the support leg 2 below the fixing ring 41, and a sliding screw sleeve 44 is threadedly connected to the threaded portion 43, a groove 45 is provided on the side wall of the sliding screw sleeve 44, and an annular block 46 is rotatably connected in the groove 45, and a connecting strip 47 is hinged between each auxiliary leg 42 and the annular block 46, wherein when the sliding screw sleeve 44 moves toward the fixing ring 41, the connecting strip 47 drives the auxiliary leg 42 to unfold.

[0042] Furthermore, a placement groove 11 that can partially accommodate the loading barrel 5 is opened on the top wall of the supporting base plate 1, and the driving component 61 includes: two first mounting seats 611 symmetrically arranged on one side of the placement groove 11, and a bidirectional screw 612 is rotatably connected between the two first mounting seats 611, and two second mounting seats 613 are symmetrically arranged on the other side of the placement groove 11, and a sliding rod 614 is fixedly connected between the two second mounting seats 613.

[0043] Specifically, both ends of the bidirectional screw 612 pass through the two first mounting seats 611 respectively, and extend toward the side away from the two first mounting seats 611, and rotating handles are fixedly connected to both ends. The purpose of providing the rotating handles is to facilitate construction personnel to easily grasp the rotating handles, and at the same time, by rotating the rotating handles, the bidirectional screw 612 can be controlled to rotate, thereby adjusting the two clamping blocks 621 to move toward or away from each other, thereby achieving the clamping and release of the loading barrel 5.

[0044] In addition, in the present device, a shock-absorbing assembly may be provided in the placement groove 11, and the shock-absorbing assembly includes a supporting plate movably connected to the placement groove 11, and a plurality of shock-absorbing springs are provided between the bottom wall of the supporting plate and the top wall of the placement groove 11. The plurality of shock-absorbing springs absorb the shaking generated during the operation of the loading bucket 5 and the supporting bottom plate 1, thereby preventing the loading bucket 5 from tilting, thereby ensuring the stability of the gangue during loading.

[0045] Furthermore, the clamping assembly 62 includes: clamping blocks 621 symmetrically arranged on both sides of the placement groove 11, and arc-shaped clamping grooves 622 that fit the outer wall of the loading barrel 5 are opened on the adjacent end faces of the two clamping blocks 621, and both ends of the clamping blocks 621 are fixedly connected with connecting seats 623, one side of the connecting seat 623 is screwed to one side threaded segment of the bidirectional screw 612, and the other side of the connecting seat 623 is slidably connected to the sliding rod 614.

[0046] Specifically, anti-wear pads can be connected to the inner walls of the two arc-shaped clamping grooves 622 that contact the outer wall of the charging barrel 5 by bonding. The anti-wear pads can reduce the hard friction between the clamping block 621 and the charging barrel 5, thereby avoiding the problem of gangue leakage caused by damage to the charging barrel 5.

[0047] Furthermore, a loading block 12 is provided on the side wall of the supporting base plate 1 , and a receiving groove 121 is provided on the loading block 12 , and the supporting leg 2 can be received in the receiving groove 121 .

[0048] The working principle and use process of the present invention:

[0049] The construction personnel erect the multiple supporting legs 2 according to the installation position of the supporting base plate 1, and rotate the sliding screw sleeve 44 to move it along the threaded portion 43 toward the fixing ring 41. During the movement, the multiple connecting strips 47 rotate and fold, and push the auxiliary supporting legs 42 connected thereto to flip and unfold around the fixing ring 41, and cooperate with the supporting legs 2 to realize the vertical support thereof;

[0050] Then, according to the installation position of each supporting leg 2 on the rugged ground, the connecting sleeve 313 on each supporting leg 2 is adjusted, and the connecting sleeve 313 slides longitudinally along the outer wall of the supporting leg 2. When it slides to a specified height, one end of the locking pin 316 is inserted from the slot 315 on one side, passes through the through hole 312 aligned with the height thereof, and then passes out from the slot 315 on the other side, so as to realize the installation and fixation of the connecting sleeve 313, so as to ensure that the multiple connecting sleeves 313 are at the same horizontal height;

[0051] The connecting block 322 on the outer wall of the supporting base plate 1 is sleeved onto the outer side of the corresponding supporting leg 2 by using the hole groove 323, and is overlapped on the top of the corresponding connecting sleeve 313 to fix the supporting base plate 1;

[0052] When the loading barrel 5 needs to be clamped, the bidirectional screw 612 is rotated to move the connecting seats 623 on the two threaded segments toward the placement groove 11, and the charging barrel 5 is clamped using the arc-shaped clamping grooves 622 on the end faces of the clamping blocks 621 on both sides. Conversely, when the two clamping blocks 621 move away from each other, the clamping of the loading barrel 5 is released.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A temporary mixed twisting loading device for a wellbore, characterized in that: include: A supporting base plate (1) has a plurality of supporting legs (2) arranged vertically in an array on its outer side; A balancing mechanism (3) comprising: A locking assembly (31) movably connected to the plurality of supporting legs (2), and a connecting assembly (32) is also provided on the supporting base plate (1) corresponding to the plurality of locking assemblies (31), and each connecting assembly (32) is movably matched with the corresponding locking assembly (31); Wherein, a support assembly (4) is also provided at the bottom of each of the support legs (2); A charging bucket (5) which is detachably connected to the supporting base plate (1); The clamping mechanism (6) comprises: A driving assembly (61) is arranged on the supporting base plate (1), and a clamping assembly (62) is movably connected to the driving assembly (61), and the clamping assembly (62) is used to achieve stability of the charging barrel (5) on the supporting base plate (1).

2. A temporary mixed twisting loading device for a wellbore as claimed in claim 1, characterized in that: The locking assembly (31) comprises: Two strip grooves (311) are symmetrically provided on the outer wall of the support leg (2) in the longitudinal direction, and a plurality of through holes (312) are provided at equal intervals along the height of each strip groove (311) on the inner wall thereof; The outer side of the supporting leg (2) is also sleeved with a slidably fitting connecting sleeve (313), and the inner peripheral wall of the connecting sleeve (313) is provided with protrusions (314) corresponding to the two strip-shaped grooves (311), and the two protrusions (314) are each provided with a slot hole (315) penetrating to the outer wall of the connecting sleeve (313); A locking pin (316) passes through the two slots (315) and the corresponding through holes (312).

3. A temporary mixed twisting loading device for a wellbore as claimed in claim 2, characterized in that: Each of the connection components (32) comprises: A connecting plate (321) fixedly connected to the side wall of the supporting base plate (1), and a connecting block (322) is also fixedly connected to the side wall of the connecting plate (321) away from the supporting base plate (1); A hole groove (323) is provided in the connection block (322), the inner diameter of the hole groove (323) and the outer diameter of the support leg (2) are transitionally matched, and the connection block (322) is overlapped on the connection sleeve (313).

4. A temporary mixed twisting loading device for a wellbore as claimed in claim 1, characterized in that: Each of the support assemblies (4) comprises: A fixing ring (41) fixedly connected to the outer wall of the supporting leg (2), and a plurality of auxiliary legs (42) are rotatably connected to the fixing ring (41) at equal angles; A threaded portion (43) is formed on the outer wall of the support leg (2) below the fixing ring (41), and a sliding screw sleeve (44) is threadedly connected to the threaded portion (43); A sink groove (45) is provided on the side wall of the sliding screw sleeve (44), and an annular block (46) is rotatably connected in the sink groove (45), and a connecting strip (47) is hinged between each auxiliary leg (42) and the annular block (46); When the sliding screw sleeve (44) moves toward the fixing ring (41), the connecting strip (47) drives the auxiliary supporting leg (42) to unfold.

5. A temporary mixed twisting loading device for a wellbore as claimed in claim 1, characterized in that: The top wall of the supporting bottom plate (1) is provided with a placement groove (11) capable of partially accommodating the charging barrel (5), and the driving assembly (61) comprises: Two first mounting seats (611) are symmetrically arranged on one side of the placement groove (11), and a bidirectional screw rod (612) is rotatably connected between the two first mounting seats (611); Two second mounting seats (613) are symmetrically arranged on the other side of the placement groove (11), and a sliding rod (614) is fixedly connected between the two second mounting seats (613).

6. A temporary mixed twisting loading device for a wellbore as claimed in claim 5, characterized in that: The clamping assembly (62) comprises: Clamping blocks (621) are symmetrically arranged on both sides of the placement groove (11), and arc-shaped clamping grooves (622) that fit the outer wall of the charging barrel (5) are formed on the adjacent end surfaces of the two clamping blocks (621); Both ends of the clamping block (621) are fixedly connected to a connecting seat (623), one side of the connecting seat (623) is screwed to a threaded section on one side of the bidirectional screw (612), and the other side of the connecting seat (623) is slidably connected to the sliding rod (614).

7. A temporary mixed twisting loading device for a wellbore as claimed in claim 1, characterized in that: A loading block (12) is also provided on the side wall of the supporting base plate (1), and a receiving groove (121) is also provided on the loading block (12), and the supporting leg (2) can be received in the receiving groove (121).

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