137results about How to "Guaranteed tight connection" patented technology

The invention relates to a lightweight total-bearing body frame structure, which comprises a side wall frame, a roof frame, a front wall frame, a rear wall frame and an interlayer frame. The lightweight total-bearing body frame structure is made of an aluminum alloy or magnesium alloy material, and is riveted with lockbolts so as to ensure that the weight of the body frame is greatly reduced while the whole strength of the body is not lower than the conventional steel body frame. The parts forming the body frame has a unique design, so that well balance between weight reduction and strength maintenance can be achieved. The lightweight total-bearing body frame structure saves more energy than the conventional steel frame.

The invention discloses a double-tower hybrid beam cable-stayed bridge system. The double-tower hybrid beam cable-stayed bridge system comprises a hybrid beam composed of a concrete beam and a composite beam. The concrete beam and the composite beam are connected through a joint section. The concrete beam is a bilateral ribbed beam and comprises two concrete beam ribs. The composite beam comprises two main steel beams, and the main steel beams are each of an I shape and each comprise a main steel beam top plate, a main steel beam bottom plate and a main beam steel web. The joint section comprises a concrete beam rib-main steel beam connection structure composed of a front pressure bearing plate, a rear pressure bearing plate and a joint section steel web, and the main steel beam top plates and the main steel beam bottom plates stretch into the concrete beam ribs. The double-tower hybrid beam cable-stayed bridge system is reasonable in structural design, convenient to construct, high in construction speed, good in use effect and good in connection effect of a steel-concrete joint part. Meanwhile, the invention further discloses a construction method of the double-tower hybrid beam cable-stayed bridge system. The construction method includes the steps of lower portion supporting structure and main tower construction and hybrid beam construction. The construction method is simple, easy to implement, short in construction period and good in construction effect.

The invention discloses a joint section structure for a hybrid beam cable-stayed bridge. The joint section structure comprises a concrete beam-combined beam connecting structure connected between a concrete beam and a combined beam, wherein the combined beam comprises steel girders distributed in the longitudinal direction of the bridge, the steel girders are I-shaped and comprise steel girder top plates, steel girder base plates and steel girder web plates. The steel girder top plates and the steel girder base plates extend into the concrete beam, and the concrete beam-combined beam connecting structure comprises a front pressure bearing plate, a rear pressure bearing plate and a joint section steel web plate. The joint section structure is simple, reasonable in design, high in construction speed and good in using effect, and the problems of complicated structure, poor joint effect and the like existing in a steel-concrete joint portion structure can be solved. The invention further discloses a construction method of the joint section structure. The construction method comprises the steps of 1 erecting a construction support; 2 hoisting a steel structure; 3 constructing the concrete beam-combined beam connecting structure; 4 casting concrete. The construction method is simple in step, reasonable in design, convenient to construct, high in construction speed and good in construction effect.

The invention provides an OLED display and a manufacturing process thereof. The OLED display includes a substrate layer, an OLED light emitting layer, an encapsulation layer, a touch screen, and a cover plate. The cover plate includes a first region, and a second region and a third region which are arranged on the two sides of the first region and separated from each other. The second region and the third region each include two first organic layers and one or more first water blocking layers arranged between the two first organic layers, and a third organic layer is arranged between every two adjacent first water blocking layers. The first region includes two first organic layers and a second organic layer arranged between the two first organic layers. A protective layer of which the hardness is greater than that of the first organic layers is arranged on the outer surface of the cover plate. The cover plate can be bent, and the water blocking performance of the display is improved.

The invention discloses a stamping part connecting fastening structure which comprises a first stamping part (5), a second stamping part (6) and a fastening connecting assembly. The fastening connecting assembly is composed of a connecting rod (1) with an end (1a), a return spring (2), a limiting pin (3) and a plain cushion (4). The lower portion of the connecting rod (1) and the limiting pin (3) rotate for a certain angle after penetrating through a via hole (5c) on the first stamping part (5) and a combination hole (6c) on the second stamping part (6), until two ends of the limiting pin (3) are respectively stopped through one of limiting protrusions (6d) so as to limit the continued rotation position of the limiting pin (3). The stamping part connecting fastening structure has the advantages that the stamping part connecting fastening structure is low in manufacturing cost, is assembled and disassembled without using a tool and is convenient and efficient and firm and reliable to connect, and secondary loading and unloading are unaffected completely, and the like.

A multifunctional mattress comprises a cotton layer and a shelf, the top of the cotton layer is in contact with the air, the bottom of the cotton layer is connected to the top of the shelf, and the bottom of the shelf is connected to the bed frame; The cotton layer is made of bionic honeycomb cotton; the bottom of the shelf is provided with two sliding rods that cross each other, and the two sliding rods correspond to a diagonal line of the shelf respectively. The sliding rods are made of elastic materials, and the sliding rods are provided with A hair dryer with a sliding fit, the air outlet of the hair dryer is arranged opposite to the bottom of the cotton layer directly above it, and a temperature sensor is arranged on the hair dryer, which includes a metal casing, an input wire, an input conductive plate, an output wire, an output conductive plate and power sheet. This design not only has a strong ventilation effect, but also has a better ventilation effect.

The invention relates to a foldable multi-rotor plant protection unmanned aerial vehicle, which comprises a machine body, a plurality of machine arms and rotors arranged on the machine arms, wherein the machine arms comprise a first machine arm and a second machine arm located on the same straight line; the first end of the first machine arm is connected with the machine body; the second end of the first machine arm is rotatably connected with one end of the second machine arm. The second machine arm and the first machine arm can be placed foldably, so that the space occupied by the unmanned aerial vehicle is reduced, and the convenience in transportation, conveyance and maintenance are realized.

The invention provides a wheelchair and bed docking control system, which comprises a wheelchair side control system and a bed body side control system, wherein the wheelchair side control system andthe bed body side control system each comprise a signal acquisition system, a controller, a wireless communication module and at least one command function executing module, so that sensing information, which is transmitted by virtue of opposite sides (the wheelchair side control system and the bed body side control system) through the wireless communication modules, can be mutually received, command execution of corresponding functions can be completed at a wheelchair side or a bed body side, such functions as turning-over, back lifting, leg bending and the like can be achieved, and mutual control when a bed and a wheelchair are integrated or separated can be achieved, so that a user is facilitated; through laser navigation, full-automatic one-key docking can be achieved; and the nursingbed or the wheelchair can be controlled by virtue of a control handle. In addition, by virtue of a charging port which is configured at the bed body side, a function of automatically charging up the wheelchair side which is docked to the bed can be achieved. By virtue of a contracting brake at the wheelchair side and an electromagnetic lock at the bed body side, fastening connection between the bed and the wheelchair can be achieved after docking is completed.

The invention discloses a magnetic electronic brick. The magnetic electronic brick comprises a cavity, a cover, magnets, first magnet cavities and circuit boards, wherein the cavity and the cover are fixedly connected to form a polyhedron, the first magnet cavities are arranged in the side edges of the cavity, the magnets are arranged in the first magnet cavities and can move freely, the circuit boards are arranged in the cavity, contact terminals used for electric conduction are arranged on the circuit boards, through holes are formed in the surfaces of the cavity, and the contact terminals stretch out of the through holes. According to the magnetic electronic brick, the magnets capable of moving freely are placed in the magnet cavities of the brick, so attraction can be achieved on any surface at multiple angles; meanwhile, the contact terminals on the circuit boards stretch out of the through holes in the surfaces of the cavity, so that electric connection between components in the brick is ensured; both close connection and electric connection between brick parts are guaranteed.

The invention relates to a connection structure of a vehicle frame. The connection structure of the vehicle frame is located below a vehicle window on the side of a vehicle body frame and above a side cabin door; lower side window longitudinal beams and upper side window longitudinal beams are connected among stand columns; short-waist stand columns are connected between the lower side window longitudinal beams and the upper side window longitudinal beams; the above members are connected through middle corners; inner skins are arranged on sides of the stand columns, the short-waist stand columns, the lower side window longitudinal beams and the upper side cabin door longitudinal beams; reinforcing beams are arranged on the other sides of the inner skins away from the members; and all the members are made of aluminum alloy or magnesium alloy and are connected through rivets. The invention ensures that the intensity of the connection structure of the vehicle frame is not lower than that of the traditional connection structure of the steel vehicle frame, lightens the weight of the vehicle frame and prolongs the service life of the vehicle frame.

In a microwave plasma-processing device, a shower plate or plasma penetration window opposed to a board to be processed is recessed on the side opposed to the board to be processed, whereby a decrease in plasma density in the peripheral region of the board to be processed is compensated. As a result, even when plasma processing at low pressure, such as etching, is effected, stabilized uniform plasma is maintained in the vicinity of the surface of the board to be processed. Further, such arrangement enhances ignition of plasma.

The invention provides a roof plate system with waterproofness improved. The roof plate system comprises roof purlines and roof plates, each two adjacent roof plates are fixedly connected through a locking device which comprises a support keel and a buckle cover, the upper end of each roof plate is clamped between the corresponding support keel and the corresponding buckle cover, and each locking device is mounted on the corresponding roof purline through a conversion member; the edge of each buckle cover is provided with a flange extending toward the outer side in an obliquely downward manner, each support keel is positioned in a vertical projection of the corresponding buckle cover, a threaded hole is formed in each buckle cover, each roof plate is fixed and compressed between the corresponding support keel and the corresponding buckle cover through a bolt, a cover cap is arranged above each buckle cover, and each bolt covers in the corresponding cover cap. A fixing mode through the buckle covers is adopted, and each buckle cover covers the corresponding bolt and a joint of the corresponding roof plate and the corresponding support keel, so that no screw of a roof is exposed, the whole roof is attractive, potential trouble in water leaking caused by existing screws is eliminated completely, and waterproofness of the roof plate system is improved.

The invention discloses a roof structure of a compartment. The roof structure of the compartment comprises a middle roof plate, a side roof plate, a luggage rack and an installation beam, wherein the installation beam is fixedly connected with the middle roof plate, the installation beam is provided with a positioning groove, the second end of the side roof plate is fixedly connected with the luggage rack, an installation hole corresponding to the positioning groove is formed in the first end of the side roof plate, and the installation hole and the positioning groove are fixedly connected through the second end of the side roof plate and the installation beam by means of a fastener. The invention further discloses the compartment which comprises the roof structure. According to the roof structure of the compartment and the compartment, when the side roof plate and the installation beam are manufactured, the installation hole and the positioning groove are formed, as a result, installation can be achieved by directly conducting connection by means of the fastener during installation, the installation efficiency can be improved, and labor intensity of workers can be relieved.

A waveguide ring flange, a flexible waveguide assembly containing the waveguide ring flange and an assembly method of the flexible waveguide assembly relate to the technical field of waveguide transmission lines and aim at solving the problem that the heat radiation cannot be realized by a traditional flexible waveguide assembly due to the adoption of external cooling equipment. The waveguide ring flange comprises a first ring flange and a second ring flange, wherein a waveguide tube connecting surface is arranged on the inner wall of the first ring flange; the second ring flange consists of a waveguide tube fixing part and an outer jacket which are integrated and communicated with each other; the waveguide tube fixing part is provided with a groove matched with the first ring flange; and water injecting ports of which the output ends are communicated with an inner cavity of the fixing part are formed in the side wall of the fixing part. The flexible waveguide assembly comprises a waveguide tube, the outer jacket and two waveguide ring flanges; two ends of the waveguide tube are respectively connected to the ring flanges; two ends of the outer jacket are respectively connected to the two ring flanges; and the waveguide tube, the outer jacket and two water injecting ports form a cooling water channel. The assembly method comprises the steps of material falling, shaping, waveguide tube welding and outer jacket cold pressing. The waveguide ring flange, the flexible waveguide assembly containing the waveguide ring flange and the assembly method of the flexible waveguide tube assembly, disclosed by the invention, are mainly used in the fields of communication, satellite ground stations, microwave measurement and the like.

The invention discloses a construction method of a decompression-type fracturing channel and belongs to the field of oil-gas field development. According to the construction method, the fracturing channel is opened through a fracturing sliding sleeve. The construction method comprises the steps that well-logging information is obtained, and designing of a well-cementing pipe string is completed according to the well-logging information; the opening pressure of the fracturing sliding sleeve, the mounting number of first shear pins and the mounting chamber of second shear pins in the well-cementing pipe string are determined; the well-cementing pipe string is tripped into a borehole, and well-cementing operation is completed; a wellhead is pressurized, thus the first shear pins are sheared off, and after the wellhead is pressurized to preset pressure, wellbore pressure test operation is completed through the fracturing sliding sleeve; and the wellhead continues being pressurized, thus the second shear pins are sheared off, the pumping pressure of the wellhead is released till the fracturing sliding sleeve is completely opened, and thus building of the fracturing channel is completed.The construction method of the decompression-type fracturing channel is easy to operate, short in period and low in cost, the requirement for two-time wellbore pressure test can be met, and the pressure test time is not limited.

The invention discloses an automobile radiator shock pad. The automobile radiator shock pad comprises an integrally-formed shock pad body with an axial through hole formed in the center. The shock padbody comprises a disc body, an upper installation truncated cone connected with the upper end face of the disc body and a lower installation cylinder connected with the lower end face of the disc body. The upper end face of the upper installation truncated cone is provided with multiple tooth grooves communicating with the axial through hole and evenly distributed outwards in the radial directionof the upper installation truncated cone. A metal framework is buried between the disc body and the upper installation truncated cone. The automobile radiator shock pad capable of meeting the requirements for load bearing, shock absorption and assembling of a radiator is provided, and ride comfort is improved.

The invention discloses an arc striking device for ion plating and an ion plating device, and relates to the technical field of ion plating. The arc striking device comprises an arc striking hook, a connecting rod, a corrugated pipe, a drive device and a sealing insulating part. A mounting hole is formed in the side wall of a vacuum chamber of the ion plating device, the sealing insulating part isfixed into the mounting hole and connected with the mounting hole in a sealed manner, an output shaft of the drive device penetrates through the sealing insulating part to be fixedly connected with one end of the connecting rod, the drive device can drive the connecting rod to reciprocate in the axial direction, one end of the corrugated pipe is fixedly connected with one end of the sealing insulating part, the other end of the corrugated pipe fixedly sleeves the connecting rod and is connected with the connecting rod in a sealed manner, and the connecting rod penetrates through the corrugated pipe to be fixedly connected with the arc striking hook. The ion plating device comprises the vacuum chamber and the arc striking device for ion plating. The drive device drives the arc striking hook to move, acting force is large, hook adhesion is not easily caused, the corrugated pipe is arranged for static sealing, the sealing performance of the vacuum chamber is good, and vacuum is not easily damaged.

The invention discloses a server structure supporting a 16GPU. The device comprises an 8U case, a 4U server, a bridging module, bolts and screws, The 8U case is provided with a front window structureand a rear window structure. The device comprises a base, Upper cover and middle partition plate, Rear window perforated plate, Rear window support, The invention designs a 4U server structure capableof accommodating eight GPUs. Meanwhile, an 8U case capable of storing two 4U servers is designed. The invention discloses a server structure supporting a 16GPU. GPU high-density ports of the two 4U servers are connected through the bridging module; the two 4U servers are arranged; Sixteen GPU cooperative work, the space requirement of the novel server is met; meanwhile, due to the special structural design of the wind scooper, the heat dissipation performance of the server is improved; the rear window opening plate is connected with the upper cover and the base through bolts at the rear window, so that connection between the upper cover and the base is reinforced, heat dissipation of the server can be guaranteed, and technicians can conveniently observe whether the server has abnormal conditions or not at the rear window.

The invention provides a connection assembly between bodies of a refrigerator. The connection assembly comprises a first connection strip, a second connection strip and a foot margin connection part, wherein the first connection strip is used for being connected with the tops of the two adjacent bodies, the second connection strip is used for being connected with front frames of the two adjacent bodies, and the foot margin connection part is used for being connected with foot margins of the two adjacent bodies. According to the connection assembly, the adjacent bodies are connected in the front, rear, upper and lower directions, and tight connection of the bodies is effectively guaranteed. In addition, under the circumstance that the ground is uneven or the second connection strip of the front frames of the refrigerator is extruded out, stable connection of the bodies can also be guaranteed.

The invention discloses a dual-layer rolled lining. The dual-layer rolled lining comprises an inner layer and an outer layer which are in mutual meshed riveting, the inner layer is formed by curling first sheets, one end of each first sheet is provided with a first hasp, the other end of each first sheet is correspondingly provided with a first slot, and multiple riveting hols are formed in the vertical center line of the first sheets at intervals; the outer layer is formed by curling second sheets, one end of each second sheet is provided with a second hasp, the other end of each second sheetis correspondingly provided with a second slot, and the first sheets are riveted to the vertical center line of the first sheets through the riveting holes. According to the dual-layer rolled lining,the inner-and-outer dual-layer mechanisms are adopted for replacing the single-layer structure, the processing difficulty is lowered on the premise that the product performance is ensured, and the processing cost is lowered.

A mould plate type pipe-containing casting dedicated sandbox upper box fixing tool comprises a tool connection rod and a slide block that cooperates with the tool connection rod, the slide block is provided with a connection screw hole, one end of the tool connection rod is connected to the connection screw hole through thread connection, the upper end of the tool connection rod stretches out of the connection screw hole, the lower end of the tool connection rod is provided with an inner screw thread, the side surfaces of the slide block are provided with card slots, which cooperate with the track arranged on the upper box. The provided fixing tool can guarantee the firm connection between the water pipe and the sandbox, and basically eliminates the stress deformation caused by the heat absorbed by the stainless steel pipe, form and location tolerance of the water pipe is guaranteed, and at the same time the sand mould will not collapse. The yield of the mould plate type pipe-containing casting is increased, moreover, the connection rod is painted with heat-diffusive paint, the problem of heat dissipation of the connection rod is solved, and the tool service life is prolonged.

The invention discloses an insulator device, which comprises a resin inner core and a rubber layer coated outside the resin inner core, wherein the resin inner core is provided with a middle axis hole; the outer wall of the rubber layer is provided with a plurality of rubber umbrella skirts; the upper end of the resin inner core is provided with a metal binding post; the lower part of the resin inner core is provided with a blocking surface; the outer wall of the resin inner core is provided with screw threads from an open end to a position close to the blocking surface; a sealing ring is arranged close to the blocking surface towards the direction of the screw threads; one side of the sealing ring facing away from the blocking surface is provided with an installation base; one side of the installation base facing away from the sealing ring is provided with a fastening nut; and the fastening nut is used for tightly pressing the installation base against the end face of the sealing ring through the screw threads. According to the insulator device, the technical problems of complex processing process and long production time of an insulator device with high sealing performance in the prior art are solved; and the insulator device has a simple processing process and high sealing performance.

A cap, with contents in a container for delivery, retained in a sealed manner and sealed against a container neck, whereby the cap is welded to a container neck in the manner of a membrane. The cap has dimensions so that it can be tightly retained with a conical section thereof in the container neck or in a conical housing volume of a welding head, with an accurate fit. An edge of the cap is welded to a container front wall.

The invention relates to a floor slab buckle connection structure, which belongs to the technical field of building decoration materials. The floor slab buckle connection structure comprises a first floor slab and a second floor slab which are adjacent to each other, wherein the first floor slab and the second floor slab are connected with each other through a connecting piece; the connecting piece comprises a transverse part and an upper convex part which is integrally formed on the transverse part; the bottom surface of the transverse part is flush with the bottom surface of the first floor slab and the bottom surface of the second floor slab; the end of the transverse part corresponding to the first floor slab is provided with first upswept lower buckling part; the bottom surface of the first floor slab is provided with a first lower buckling groove corresponding to a first lower buckling part; the end of the transverse part corresponding to the second floor slab is provided with a second upswept lower buckling part; the bottom surface of the second floor slab is provided with a second lower buckling groove corresponding to a second lower buckling part; a transverse buckling part facing the first floor slab or the second floor slab is formed on at least one side of the upper convex part; a side edge of the first floor slab or a side edge of the second floor slab is provided with a transverse buckling groove which is matched with the transverse buckling part; and the connecting piece is machined by a section. The floor slabs and the connecting piece are separately manufactured, so the floor slabs are prevented from being damaged or scrapped, and the floor slab buckle connection structure has lower manufacturing cost.

The invention discloses a detachable gas collection measuring device for the biodegradability of a medical magnesium alloy. The device comprises a main gas measuring pipe, an auxiliary gas measuring pipe, a gas guide cover, a plug valve and a drainage pipe, wherein the main gas measuring pipe is an independent component of which the upper end is provided with an external thread and the lower end is provided with an internal thread; the gas guide cover is an independent component which has a funnel shape and of which the small end is provide with an external thread fastened with the main gas measuring pipe and matched with the internal thread of the lower end of the main gas measuring pipe; and the lower end of the auxiliary gas measuring pipe is provided with an internal thread fastened with the main gas measuring pipe and matched with the external thread of the upper end of the main gas measuring pipe, and the upper end of the auxiliary gas measuring pipe is connected with the drainage pipe through the plug valve. The device has the advantages of detachability, easy carrying, convenient use, accurate measurement, high generality and the like; and when the device is used, insoluble gases produced in a specific area in a liquid medium can be easily collected in real time and synchronously and accurately measured, and therefore the requirements on fast and accurate measurement of the corrosion resistance and degradability of materials are met.

The invention relates to a method and device for detecting a connection state between a battery and a vehicle body, a controller and a medium. The method comprises the steps of detecting the contact resistance between one or more vehicle body fasteners and the battery to obtain a contact resistance detection value; determining the connection state between the battery and the vehicle body accordingto the contact resistance detection value and the preset contact resistance threshold value. According the method, whether or not the fasteners are tightened in place is determined by detecting the contact resistance between the battery and the vehicle body fasteners to further judge whether or not the battery is firmly installed; the detection process is simple, the detection result is reliable,the reliability and safety of power exchange are ensured, and safe driving of a power exchange vehicle is ensured.

The invention discloses a folding guard fence, which comprises a left supporting rod, clamping rings and supporting legs. The left supporting rod is arranged on a support which is provided with supporting ribs on two sides of the left supporting rod; the clamping rings are arranged at two ends of a supporting rod and connected with the supporting rod through bolts; the supporting legs are arrangedbelow the supporting rod and connected with two ends of a sleeve. The folding guard fence is simple in structure; by cooperation of a first drawing rod, a second drawing rod and third drawing rods with the sleeves and by grating adjustment, convenience in adjustment according to sizes of erection areas is achieved, and convenience in folding and space saving are realized; by matching of a bolt seat and a single clamping seat and by matching of the second drawing rod and a double clamping seat, sequential connection of the fence can be realized; by locking bolts, fastening degrees of the supports and the left supporting rod and a right supporting rod can be adjusted, and an angle between the left supporting rod and the corresponding support and an angle between the right supporting rod andthe corresponding support can be adjusted, so that erection at a regional corner is facilitated, and high stability is realized.

The invention provides a fastening device for electrified bolts of power transformer equipment. The fastening device for the electrified bolts of the power transformer equipment comprises a front rod, a connecting rod, an extension rod, a brace rod, a pneumatic screwing spanner, a camera support, a camera, a fastening device, an auxiliary handle, a main handle, an air pump, fixed rotary knobs, an adjustable screwed pipe, a spanner clamping slot, hanging plates, pulleys, an air duct and an illuminating lamp. The front rod is connected with the extension rod through the connecting rod; the extension rod is fixed to the upper part of the brace rod through the fastening device; the pneumatic screwing spanner is arranged on the lower end of the front rod; and the camera is fixed to the upper part of the pneumatic screwing spanner through the camera support. According to the fastening device for the electrified bolts of the power transformer equipment provided by the invention, through the arrangement of the front rod, the connecting rod, the extension rod, the brace rod and the pneumatic screwing spanner, the use function is perfected, the application range is expanded, and the fastening device for the electrified bolts of the power transformer equipment is convenient to operate, time and labor saving, convenient to carry, safe, reliable, and convenient to popularize and use.

The application discloses a pair of orthodontic pliers. The pair of orthodontic pliers comprises a pliers head and pliers arms and further comprises a fastener, wherein the pliers head is provided with a first mounting hole; each of the pliers arms is provided with a second mounting hole; the fastener is arranged in the first mounting hole and the second mounting hole in a penetrating manner; the fastener is in interference fit with the first mounting hole and the second mounting hole, respectively; the pliers head is detachably mounted on the pliers arms through the fastener. In the specific embodiment of the application, since the orthodontic pliers comprise the pliers head, the pliers arms and the fastener, the pliers head is provided with the first mounting hole; each pliers arm is provided with the second mounting hole; the fastener is arranged in the first mounting hole and the second mounting hole in a penetrating manner; the pliers head is detachably mounted on the pliers arms through the fastener; fixed connection between the pliers head and the pliers body can be ensured through a simple structure in interference fit through the fastener, while convenient replacement of different pliers heads is realized to achieve multiple purposes, so that the utilization rate of equipment is improved and resources are saved.

The invention belongs to the technical field of drilling rig equipment, and proposes a self-propelled double-column drill carriage which is characterized by comprising a chassis. A travelling track isarranged below the chassis, the chassis is provided with a column, a guide rail is rotatably arranged at the middle of the column, a rotator is slidably arranged on the guide rail, the column includes a bottom pillar arranged on the chassis, the upper portion of the bottom pillar is connected with a pneumatic telescopic pillar, a first abutting seat is hinged to the top of the pneumatic telescopic pillar, rotating supporting rods are also rotatably arranged on the chassis, a rotating shaft of each rotating supporting rod is arranged in the horizontal direction, the length of the rotating supporting rod is larger than the distance between the chassis and the ground, the rotating supporting rod is telescopic and can be locked, the number of the rotating supporting rods is four, the rotatingsupporting rods are located at four corners of the chassis respectively, and a second abutting seat is hinged to one end of the rotating supporting rod far away from the chassis. According to the self-propelled double-column drill carriage, the problems that when a drilling rig is in drilling process, the chassis is instable easily and shakes, which results in a poor drilling effect is solved.