Guide pipe convenient to install

The design of the connecting plate and snap-fit ​​components solves the problem of aligning the guide tube during installation, enabling rapid installation and stable connection by a single person, and improving the installation efficiency of elevator guide tubes.

CN224076885UActive Publication Date: 2026-04-03HUZHOU DONGSU ELEVATOR PARTS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

During the installation of existing elevator guide tubes, the bolt hole diameter is larger than the bolt, making it difficult to align the other end of the guide tube. This requires multiple people to work simultaneously, which affects installation efficiency.

Method used

The design employs a connecting plate and connecting hole, and through the combination of connectors and snap-fit ​​parts, it achieves vertical positioning and fixation of the guide tube body. Combined with sliding snap-fit ​​parts and threaded engagement, it simplifies the installation process.

Benefits of technology

It enables rapid installation of the guide tube by a single person, improving installation efficiency and stability, and avoiding the hassle of multi-person collaboration.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224076885U_ABST
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Abstract

The utility model discloses a guide pipe convenient to install, which belongs to the technical field of guide pipes of elevators and comprises a guide pipe body, a first installation head is arranged at one end of the guide pipe body, connecting plates are symmetrically arranged on two sides of the installation head, and connecting holes are formed in the connecting plates. One end of the guide pipe body is connected with the first mounting head through a connecting piece, a second mounting head is arranged at the other end of the guide pipe body, bearing plates are symmetrically arranged on the two sides of the second mounting head, bearing holes are formed in the bearing plates, a clamping sleeve is arranged on the second mounting head, and the clamping sleeve is connected with the first mounting head through a connecting piece. The clamping sleeve is in sliding fit with the second mounting head through the clamping piece, the clamping sleeve is matched with one end of the guide pipe body and connected with one end of the guide pipe body in an inserted mode, and therefore the guide pipe is convenient to mount.
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Description

Technical Field

[0001] This utility model relates to the field of elevator guide tube technology, and more specifically, to a guide tube that is easy to install. Background Technology

[0002] The elevator counterweight guide tube is a key component in the elevator system used to guide the vertical movement of the counterweight. It is mainly used in the forced closing device or balancing device of the elevator landing door.

[0003] Chinese Patent Application No. CN202323665012.X discloses a counterweight guide tube and an elevator. The counterweight guide tube includes a guide tube body and a stop member fixedly installed at the bottom of the guide tube body. A groove is provided within the guide tube body for the counterweight to slide up and down. The groove passes through the top and bottom ends of the guide tube body and extends through the side of the guide tube body away from the landing door panel. This utility model, by providing a groove within the guide tube body, allows maintenance personnel to observe the operation of the counterweight, its accessories, and the wire rope at any time. This facilitates timely detection and replacement of damaged parts, preventing elevator malfunctions, ensuring passenger safety, and improving elevator maintenance efficiency.

[0004] When implementing the above solution, the overall guide tube is connected to the external frame through four bolt holes. However, because the diameter of the bolt holes is slightly larger than the bolt to ensure smooth bolt passage, the following problems occur during the installation of the overall guide tube: due to the long length of the guide tube, after one end is installed with a bolt, the bolt holes at the other end often do not align. Often, multiple people need to work simultaneously to install one guide tube, which greatly affects the overall installation efficiency. To address the above problems, a solution is proposed below. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a guide tube that is easy to install, which can facilitate the installation of the guide tube.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A guide tube for easy installation includes a guide tube body. One end of the guide tube body is provided with a first mounting head. Connecting plates are symmetrically arranged on both sides of the mounting head. Connecting holes are formed on the connecting plates. One end of the guide tube body and the first mounting head are connected by a connector. The other end of the guide tube body is provided with a second mounting head. Receiving plates are symmetrically arranged on both sides of the second mounting head. Receiving holes are formed on the receiving plates. A retaining sleeve is provided on the second mounting head. The retaining sleeve and the second mounting head are slidably engaged by a retaining member. The retaining sleeve and one end of the guide tube body are mutually adapted and inserted into each other.

[0008] Preferably, the connector includes a rotating rod, a first screw, and a nut. The rotating rod is fixedly connected to the side of one end of the guide tube body. An opening is provided on the side of the first mounting head. The rotating rod passes through the opening and is rotatably engaged with the opening. The first screw is fixed to the end of the rotating rod away from the guide tube body. The nut is sleeved on the first screw and is threadedly engaged with the first screw. The nut and the side of the first mounting head are in contact with each other.

[0009] Preferably, the snap-fit ​​component includes a base plate and a sliding component. The side of the second mounting head is provided with vertically opening grooves. There are two sliding components. The two grooves are arranged vertically and horizontally. The two sliding components are slidably arranged inside the grooves respectively. The two sliding components are respectively connected to the base plate. The snap-fit ​​sleeve and the sliding components are slidably engaged.

[0010] Preferably, the sliding element includes a bolt and a screw hole, the screw hole is formed on the base plate and penetrates the base plate, the screw hole corresponds to the sliding groove, the bolt passes through the sliding groove and the screw hole in sequence, and the bolt and the screw hole are threadedly engaged.

[0011] Preferably, the base plate has a guide groove, the guide groove is vertically opened, the bottom of the guide groove is higher than the height of the top screw hole, and a slider is slidably arranged inside the guide groove, the slider and the sleeve are fixedly connected.

[0012] Preferably, one end of the bolt is threaded with a protrusion.

[0013] Preferably, the first mounting head has an arc-shaped groove, the circle of the arc-shaped groove and the center of the opening are concentric, a second screw is slidably arranged inside the arc-shaped groove, the second screw is fixedly connected to the guide tube body, a pressure block is sleeved on the second screw (24), and the pressure block and the second screw are threaded together.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] 1. This solution connects the first mounting head to the external frame via a connecting plate and connecting holes. The guide tube body rotates around the connector under its own weight, remaining vertically downward. The connector then fixes the position between the guide tube body and the first mounting head. The second mounting head is then installed on the corresponding bracket at the other end of the guide tube body via a receiving plate and receiving hole. By using a sliding snap fastener, the ferrule can slide horizontally until it aligns with one end of the guide tube body. The ferrule is then pushed upward to engage with one end of the guide tube. The snap fastener locks the position of the ferrule, thus completing the installation. The operation is simple and requires no multiple people.

[0016] 2. The guide tube body rotates around the connecting hole via a rotating rod to ensure that the guide tube is vertically downward. By rotating the nut, the threaded engagement between the nut and the first screw causes the nut and the side of the first mounting head to come into contact with each other and form a fixation, thereby achieving the fixation between the guide tube body and the first mounting head.

[0017] Third, the sliding component can drive the base plate to slide along the slide groove, thereby adjusting the position of the ferrule and making it easy to align the ferrule with the guide tube body.

[0018] 4. Adjust the position by sliding the bolt inside the groove. Once the position is fixed, rotate the bolt to move the position of the bolt and the screw hole. Fix the position of the base plate and the second connector by the bolt. At the same time, the bolt will pass through the base plate and lock the position of the ferrule to prevent the ferrule from moving again.

[0019] 5. The cooperation between the guide groove and the slider plays a limiting and guiding role in the movement of the ferrule.

[0020] 6. The protrusions protect the bolts and provide support for limiting the movement of the ferrule.

[0021] 7. The arc-shaped groove, the second screw, and the pressure block can further lock the guide tube body to ensure stability. Attached Figure Description

[0022] Figure 1 This is a front view structural diagram of the present utility model;

[0023] Figure 2 This is a schematic diagram of the back structure connecting the first mounting head and the guide tube body of this utility model;

[0024] Figure 3 This is a schematic diagram of the back structure connecting the second mounting head and the guide tube body of this utility model;

[0025] Figure 4 This is a cross-sectional view of the connection between the first mounting head and the guide tube body of this utility model.

[0026] Figure 5 This is a cross-sectional view of the connection between the second mounting head and the guide tube body of this utility model;

[0027] Figure 6 This is a cross-sectional view of the connection between the sleeve and the base plate of this utility model.

[0028] Explanation of the labels in the diagram:

[0029] 1. Guide tube body; 2. First mounting head; 3. Connecting plate; 4. Connecting hole; 5. Connector; 6. Second mounting head; 7. Receiving plate; 8. Receiving hole; 9. Sleeve; 10. Snap-fit; 11. Rotating rod; 12. First screw; 13. Nut; 14. Opening; 15. Base plate; 16. Sliding component; 17. Slide groove; 18. Bolt; 19. Screw hole; 20. Guide groove; 21. Sliding block; 22. Protrusion; 23. Arc groove; 24. Second screw; 25. Pressure block. Detailed Implementation

[0030] Example 1:

[0031] Please see Figure 1-6 A guide tube for easy installation includes a guide tube body 1. A first mounting head 2 is provided at one end of the guide tube body 1. Connecting plates 3 are symmetrically arranged on both sides of the mounting head. Connecting holes 4 are provided on the connecting plates 3. One end of the guide tube body 1 and the first mounting head 2 are connected by a connector 5. The connector 5 includes a rotating rod 11, a first screw 12, and a nut 13. The rotating rod 11 is fixedly connected to the side of one end of the guide tube body 1. An opening 14 is provided on the side of the first mounting head 2. The rotating rod 11 passes through the opening 14, and the rotating rod 11 and the opening 14 rotate... The first screw 12 is fixed at the end away from the guide tube body 1. The nut 13 is sleeved on the first screw 12. The nut 13 and the first screw 12 are threaded together. The nut 13 and the side of the first mounting head 2 are in contact with each other. The first mounting head 2 has an arc-shaped groove 23. The circle of the arc-shaped groove 23 is concentric with the center of the opening 14. The second screw 24 is slidably arranged inside the arc-shaped groove 23. The second screw 24 is fixedly connected to the guide tube body 1. A pressure block 25 is sleeved on the second screw 24. The pressure block 25 and the second screw 24 are threaded together.

[0032] The first mounting head 2 is connected to the external frame via the connecting plate 3 and the connecting hole 4. The guide tube body 1 rotates around the connecting hole 4 via the rotating rod 11, while the second screw 24 slides around the arc groove 23 to ensure that the guide tube is vertically downward. After the guide tube body 1 is stationary, the nut 13 is tightened. The threaded engagement between the nut 13 and the first screw 12 causes the nut 13 to move along the screw until it fits against the first mounting head 2, thus fixing the guide tube body 1 and the first mounting head 2. Then, the pressure block 25 is tightened. The threaded engagement between the pressure block 25 and the second screw 24 allows the pressure block 25 to move until it engages with the first mounting head 2. Through the engagement of the pressure block 25 and the nut 13, the guide tube body and the first mounting head 2 are fixedly connected.

[0033] A second mounting head 6 is provided at the other end of the guide tube body 1. Receiving plates 7 are symmetrically arranged on both sides of the second mounting head 6. Receiving holes 8 are provided on the receiving plates 7. A retaining sleeve 9 is provided on the second mounting head 6. The retaining sleeve 9 and one end of the guide tube body 1 are mutually adapted and inserted. The retaining sleeve 9 and the second mounting head 6 are slidably engaged by a snap-fit ​​component 10. The snap-fit ​​component 10 includes a base plate 15 and a sliding component 16. Two sliding grooves 17 are provided vertically on the side of the second mounting head 6. The two sliding components 16 are arranged vertically and horizontally. The sliding component 16 includes a bolt 18 and a screw hole 19. The screw hole 19 is located on the base plate. On plate 15, screw hole 19 penetrates through plate 15, screw hole 19 corresponds to slide groove 17, bolt 18 passes through slide groove 17 and screw hole 19 in sequence, bolt 18 and screw hole 19 are threaded together, guide groove 20 is provided on plate 15, guide groove 20 is opened vertically, bottom of guide groove 20 is higher than the height of top screw hole 19, slider 21 is slidably arranged inside guide groove 20, slider 21 is fixedly connected to sleeve 9, and the cross section of guide groove 20 is T-shaped, the cross section of slider 21 is adapted to the cross section of guide groove 20. By using T-shaped guide groove and mutually adapted T-shaped slider, separation between sleeve 9 and plate 15 can be avoided, ensuring the stability of connection.

[0034] Next, the second mounting head 6 is installed on the bracket corresponding to the other end of the guide tube body 1 through the receiving plate and receiving hole 8. The ferrule 9 is moved, and the ferrule 9 drives the base plate 15 to move. The base plate 15 drives the bolt 18 to move inside the slide groove 17 until one end of the ferrule 9 corresponds to one end of the guide tube body 1. The ferrule 9 is moved upward, and the ferrule 9 drives the guide block to move inside the guide groove 20 until the ferrule 9 is completely engaged inside one end of the guide tube body 1. The bolt 18 is rotated, and the threaded engagement between the bolt 18 and the screw hole 19 will drive the bolt 18 to move, so that the bolt 18 passes through the screw hole 19. The engagement between the bolt 18 and the screw hole 19 fixes the base plate 15 and the second mounting head 6. Since the protruding bolt 18 will limit the bottom of the ferrule 9, it will prevent the ferrule 9 from moving downward, thus limiting the ferrule 9.

[0035] This application also includes a protrusion 22 threaded to one end of the bolt 18. The protrusion 22 can further support the ferrule 9 and prevent external damage to the threads of the bolt 18, thus providing protection.

Claims

1. An installation-easy guide tube, characterized by: The utility model provides a guide pipe body (1) is provided with first mounting head (2) one end, the both sides symmetry of mounting head are provided with connecting plate (3), and the connecting plate (3) is provided with connecting hole (4), and one end of guide pipe body (1) and first mounting head (2) are connected through connecting piece (5), and the other end of guide pipe body (1) is provided with second mounting head (6), and the both sides symmetry of second mounting head (6) are provided with receiving plate (7), and the receiving plate (7) is provided with receiving hole (8), and second mounting head (6) is provided with sleeve (9), and sleeve (9) and second mounting head (6) are slidably connected through clamping piece (10), and sleeve (9) and one end of guide pipe body (1) are mutually adapted and are inserted.

2. The easy-to-mount guide tube according to claim 1, characterized in that: The connecting piece (5) includes a rotating rod (11), a first screw rod (12) and a nut (13), the rotating rod (11) is fixedly connected to the side of one end of the guide pipe body (1), the side of the first mounting head (2) is provided with an opening (14), the rotating rod (11) passes through the opening (14), and the rotating rod (11) and the opening (14) are rotationally connected, the first screw rod (12) is fixed to the end of the rotating rod (11) away from the guide pipe body (1), the nut (13) is sleeved on the first screw rod (12), the nut (13) and the first screw rod (12) are threadedly connected, and the nut (13) and the side of the first mounting head (2) are in contact with each other.

3. The easy-to-mount guide tube according to claim 1, characterized in that: The clamping piece (10) includes a bottom plate (15) and a sliding piece (16), the side of the second mounting head (6) is provided with a sliding groove (17) upward and downward, the sliding piece (16) is provided with two, the two sliding grooves (17) are arranged upward and downward, and the two sliding grooves (17) are horizontally provided, the two sliding pieces (16) are slidably arranged in the sliding grooves (17) respectively, the two sliding pieces (16) are connected with the bottom plate (15) respectively, and the sleeve (9) and the sliding piece (16) are slidably connected.

4. The easy-to-mount guide tube according to claim 3, characterized in that: The sliding piece (16) includes a bolt (18) and a screw hole (19), the screw hole (19) is provided in the bottom plate (15), the screw hole (19) penetrates the bottom plate (15), the screw hole (19) corresponds to the sliding groove (17), the bolt (18) passes through the sliding groove (17) and the screw hole (19) in sequence, and the bolt (18) and the screw hole (19) are threadedly connected.

5. The easy-to-mount guide tube according to claim 4, characterized in that: The bottom plate (15) is provided with a guide groove (20), the guide groove (20) is vertically provided, the bottom of the guide groove (20) is higher than the height of the topmost screw hole (19), and the guide groove (20) is slidably provided with a sliding block (21), and the sliding block (21) is fixedly connected with the sleeve (9).

6. The easy-to-mount guide tube according to claim 4, characterized in that: One end of the bolt (18) is threadedly connected with a protruding block (22).

7. The easy-to-mount guide tube according to claim 2, characterized in that: The first mounting head (2) is provided with an arc-shaped groove (23), the center of the circle of the arc-shaped groove (23) is concentric with the center of the opening (14), a second screw rod (24) is slidably arranged in the arc-shaped groove (23), the second screw rod (24) is fixedly connected with the guide pipe body (1), a pressing block (25) is sleeved on the second screw rod (24), and the pressing block (25) is in threaded connection with the second screw rod (24).

Citation Information

Patent Citations

  • Counter weight guide pipe and elevator

    CN221521735U