Screwing head lifting device

Abstract

The utility model relates to the technical field of valve installation, in particular to a screwing head lifting device which is characterized in that a threaded groove is formed in the inner wall of an inner-layer protective shell, a first threaded column is rotatably connected to the interior of the threaded groove, a threaded groove is formed in the first threaded column, and the top end of the threaded groove is slidably connected with one end of a sliding block A; and the other end of the sliding block A is fixedly connected with one end of a connecting rod A, the other end of the connecting rod A is fixedly connected with a second threaded column, a threaded groove is formed in the inner wall of the second threaded column, the top end of the threaded groove is slidably connected with one end of a sliding block B, and the other end of the sliding block B is fixedly connected with one end of a connecting rod B. The inner-layer protective shell is connected with the chuck base, the chuck base is connected with the clamping block, and the control screwing head and the clamping block are used in cooperation, so that the effect that a worker replaces the applicable control screwing head by disassembling the clamping block in the using process is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve installation, in particular to a screw head lifting device. Background Art

[0002] The screw head lifting device is a device used to control the opening and closing of the valve. It can realize the lifting and lowering operation of the valve by mechanical or electrical means. Usually, the device is controlled by a handle or knob. By rotating the handle or knob, the opening of the valve can be gradually increased or decreased. The specific lifting method may be different, but generally includes the following main components: Handle or knob: used to operate and control the lifting and lowering of the valve. Transmission device: transmits the rotational power of the handle or knob to the valve. Lifting rod or screw rod: responsible for transmitting the transmission force to the valve to move it up and down. Support frame or fixture: used to support and fix the valve. By rotating the handle or knob, the transmission device will transmit power to the lifting rod or screw rod, so that the valve rises or falls. The support frame or fixture plays the role of fixing the valve to ensure its stability and safety during the lifting process.

[0003] A busbar lifting frame fully automatic rotary switch device disclosed in the Chinese utility model patent application publication specification CN203999849U includes a busbar lifting frame body, a series of clamps are symmetrically arranged on both sides of the busbar lifting frame body, a screwing device corresponding to the screw of the small box clamp is arranged on the outside of the clamp, and the screwing device includes a drive motor fixedly arranged on the side of the clamp, a transmission shaft connected to the output shaft of the drive motor, and a rotary switch arranged at the end of the transmission shaft, and a guide sleeve is sleeved on the outside of the rotary switch shaft, and the guide sleeve is arranged on the side of the clamp through a support plate. The utility model has a reasonable and compact structure design, ready positioning, reliable transmission, and can avoid mistakes caused by insufficient operator work experience in the past.

[0004] However, during the design process of the device, it was not considered that the control end of the device may require different sizes and shapes due to different usage scenarios. The fixed shape makes the device not very applicable and not convenient for normal use by people in daily life. Utility Model Content

[0005] The purpose of the utility model is to provide a screw head lifting device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A screw head lifting device, comprising

[0008] An inner protective shell, the top of which is fixedly connected to a chuck base, a plurality of slots are provided on the upper surface of the chuck base, a card block is connected inside the slot, and one end of the card block away from the slot is rotatably connected to a control screw head;

[0009] A threaded groove is provided on the inner wall of the inner protective shell, a first threaded column is rotatably connected inside the threaded groove, a threaded groove is provided inside the first threaded column, one end of a sliding block A is slidably connected to the top end of the threaded groove, the other end of the sliding block A is fixedly connected to one end of a connecting rod A, the other end of the connecting rod A is fixedly connected to a second threaded column, a threaded groove is provided on the inner wall of the second threaded column, one end of a sliding block B is slidably connected to the top end of the threaded groove, the other end of the sliding block B is fixedly connected to one end of a connecting rod B, the other end of the connecting rod B is fixedly connected to an active threaded column, the bottom of the active threaded column is fixedly connected to an extension rod, and the bottom of the extension rod is fixedly connected to a rotary switch.

[0010] Preferably, the outer side surface of the inner protective shell is provided with a sliding groove, and both sides of the inner wall of the sliding groove are provided with a clamping groove, the interior of the clamping groove is clamped with a limit rod A, and one end of the limit rod A is fixedly connected to a guide block A.

[0011] Preferably, a middle-layer elongated shell is fixedly connected to one side of the guide block A, and a sliding groove is provided on the outer surface of the middle-layer elongated shell.

[0012] Preferably, both sides of the inner wall of the sliding groove are provided with clamping grooves, and the limiting rod B is clamped inside the clamping grooves.

[0013] Preferably, one end of the limit rod B is fixedly connected to a guide block B, and one side of the guide block B is fixedly connected to an outer protective shell.

[0014] Preferably, a first baffle is fixedly connected to the bottom of the inner wall of the first threaded column, and a second baffle is fixedly connected to the bottom of the second threaded column.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. This kind of screw head lifting device is arranged through the inner protective shell, the chuck base, the card block, and the control screw head. When in use, the chuck base is connected through the inner protective shell, the card block is connected through the chuck base, and then the control screw head and the card block are used in coordination, so that the staff can disassemble the card block to replace the applicable control screw head during use.

[0017] 2. This kind of screw head lifting device is set up through the first threaded column, the second threaded column, the active threaded column, the extension rod, and the rotary switch. When in use, the staff drives the extension rod to rotate by rotating the rotary switch, and drives the active threaded column to rotate by the extension rod, and then the first threaded column and the second threaded column are used in coordination, thereby achieving the effect of lifting and lowering the device through the rotary switch control. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a front view schematic diagram of the threaded column connection of the utility model;

[0020] Figure 3 This is a schematic diagram of the inner protective shell slot structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the control screw head clamp block of the utility model.

[0022] In the figure: 1. inner protective shell; 2. chuck base; 3. clamping block; 4. control screw head; 5. first threaded column; 6. sliding block A; 7. connecting rod A; 8. second threaded column; 9. sliding block B; 10. connecting rod B; 11. active threaded column; 12. extension rod; 13. rotary switch; 14. limit rod A; 15. guide block A; 16. middle extension shell; 17. limit rod B; 18. guide block B; 19. outer protective shell; 20. first baffle; 21. second baffle. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4 As shown, a technical solution provided by the utility model:

[0025] A screw head lifting device, comprising

[0026] The inner protective shell 1 is fixedly connected to the top of the inner protective shell 1 with a chuck base 2, and the upper surface of the chuck base 2 is provided with a plurality of slots, and a card block 3 is connected inside the slot, and the end of the card block 3 away from the slot is rotatably connected to a control screw head 4. Through the setting of the card block 3, when in use, the card block 3 adopts a cross design, and when inserted into the slot, the connecting rod on the upper part of the card block is rotated to clamp the slot, thereby achieving the effect of conveniently and stably controlling the screw head 4;

[0027] A threaded groove is provided on the inner wall of the inner protective shell 1, and a first threaded column 5 is rotatably connected inside the threaded groove. A threaded groove is provided inside the first threaded column 5, and one end of a sliding block A6 is slidably connected to the top of the threaded groove, and one end of a connecting rod A7 is fixedly connected to the other end of the sliding block A6, and a second threaded column 8 is fixedly connected to the other end of the connecting rod A7, and a threaded groove is provided on the inner wall of the second threaded column 8, and one end of a sliding block B9 is slidably connected to the top of the threaded groove, and one end of a connecting rod B10 is fixedly connected to the other end of the sliding block B9, and an active threaded column 11 is fixedly connected to the bottom of the active threaded column 11 with an extension rod 12, and a rotary switch 13 is fixedly connected to the bottom of the extension rod 12. Through the setting of the rotary switch 13, when in use, the rotary switch 13 adopts a cross-shaped design, and the rotary switch 13 can be rotated by manpower to achieve the function of lifting the entire device;

[0028] In this embodiment, preferably, the outer side surface of the inner protective shell 1 is provided with a sliding groove, and both sides of the inner wall of the sliding groove are provided with a clamping groove, and the inner part of the clamping groove is clamped with a limit rod A14, and one end of the limit rod A14 is fixedly connected with a guide block A15. Through the setting of the guide block A15, when in use, the guide block A15 drives the movement of the middle extension shell 16, thereby ensuring the orderly operation of the entire device;

[0029] In this embodiment, preferably, one side of the guide block A15 is fixedly connected with a middle layer elongated shell 16, and the outer surface of the middle layer elongated shell 16 is provided with a sliding groove. Through the setting of the middle layer elongated shell 16, when in use, the material of the middle layer elongated shell 16 is designed with a wear-resistant material, thereby achieving the effect of protecting the internal device from wear;

[0030] In this embodiment, preferably, both sides of the inner wall of the sliding groove are provided with a card slot, and the inner part of the card slot is carded with a limit rod B17. By setting the limit rod B17, the limit rod B17 is fixedly connected to the guide block B18 during use, thereby achieving the effect of stabilizing the position of the guide block B18 and preventing the outer protective shell 19 from falling off;

[0031] In this embodiment, preferably, one end of the limit rod B17 is fixedly connected to a guide block B18, and one side of the guide block B18 is fixedly connected to an outer protective shell 19. By setting the outer protective shell 19, when in use, the outer protective shell 19 is designed with anti-fall materials, thereby achieving the effect of setting a first line of defense to prevent damage to the device;

[0032] In this embodiment, preferably, a first baffle 20 is fixedly connected to the bottom of the inner wall of the first threaded column 5, and a second baffle 21 is fixedly connected to the bottom of the second threaded column 8. By setting the first baffle 20 and the second baffle 21, when in use, the first baffle 20 and the second baffle 21 block the sliding block A6 and the sliding block B9, thereby preventing the threaded connection of the threaded column from falling off.

[0033] When in use, a rotary switch lifting device of the present embodiment is connected to the chuck base 2 through the inner protective shell 1, connected to the clamping block 3 through the chuck base 2, and then the function of replacing the tray 4 is realized by controlling the coordinated use of the screw head 4 and the clamping block 3. Finally, the staff drives the extension rod 12 to rotate by rotating the rotary switch 13, drives the active threaded column 11 to rotate by the extension rod 12, and then realizes the lifting function through the coordinated use of the first threaded column 5 and the second threaded column 8.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A screw head lifting device, characterized in that: include An inner protective shell (1), the top of the inner protective shell (1) being fixedly connected to a chuck base (2), the upper surface of the chuck base (2) being provided with a plurality of slots, the interior of the slots being clamped with a clamping block (3), and the end of the clamping block (3) away from the slots being fixedly connected to a control screw head (4); The inner wall of the inner protective shell (1) is provided with a thread groove, a first thread column (5) is rotatably connected inside the thread groove, a thread groove is provided inside the first thread column (5), one end of a sliding block A (6) is slidably connected to the top end of the sliding block A (6), one end of a connecting rod A (7) is fixedly connected to the other end of the connecting rod A (7), a second thread column (8) is fixedly connected to the other end of the connecting rod A (7), a thread groove is provided on the inner wall of the second thread column (8), one end of a sliding block B (9) is slidably connected to the top end of the thread groove, one end of a connecting rod B (10) is fixedly connected to the other end of the connecting rod B (10), an active thread column (11) is fixedly connected to the bottom of the active thread column (11), an extension rod (12) is fixedly connected to the bottom of the extension rod (12), a rotary switch (13) is fixedly connected to the bottom of the extension rod (12).

2. A screw head lifting device according to claim 1, characterized in that: The outer side surface of the inner protective shell (1) is provided with a sliding groove, and both sides of the inner wall of the sliding groove are provided with a clamping groove, and a limit rod A (14) is clamped inside the clamping groove, and one end of the limit rod A (14) is fixedly connected to a guide block A (15).

3. A screw head lifting device according to claim 2, characterized in that: A middle layer elongated shell (16) is fixedly connected to one side of the guide block A (15), and a sliding groove is provided on the outer surface of the middle layer elongated shell (16).

4. A screw head lifting device according to claim 3, characterized in that: Both sides of the inner wall of the sliding groove are provided with clamping grooves, and the interior of the clamping grooves is clamped with a limiting rod B (17).

5. A screw head lifting device according to claim 4, characterized in that: One end of the limit rod B (17) is fixedly connected to a guide block B (18), and one side of the guide block B (18) is fixedly connected to an outer protective shell (19).

6. The screw head lifting device according to claim 1, characterized in that: A first baffle (20) is fixedly connected to the bottom of the inner wall of the first threaded column (5), and a second baffle (21) is fixedly connected to the bottom of the second threaded column (8).

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