Quick-mounting side pressing device

By using the sliding fit of the quick-installation side pressure device and the fixing of the set screw, drilling-free installation and stepless position adjustment are achieved, which solves the problem of high matching requirements for transmission rods in the existing technology, and improves installation efficiency and smooth opening and closing of doors and windows.

CN224591978UActive Publication Date: 2026-08-043H INC +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
3H INC
Filing Date
2025-07-17
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing side-pressure translation devices require strict matching with transmission rods of specific specifications. During installation, the dimensional accuracy and hole positions of the transmission rods are highly demanding, resulting in difficult installation, high time costs, and poor flexibility.

Method used

A quick-installation side-pressure device is designed. Through the sliding cooperation between the side-pressure sliding groove seat and the transmission rod and the fixing with the set screw, drilling-free installation and stepless position adjustment are achieved. Combined with the pulley assembly and limit assembly, reliable connection and smooth sliding are ensured.

Benefits of technology

It significantly improves installation efficiency, reduces reliance on the dimensional accuracy of the transmission rod, ensures a reliable connection between the device and the transmission rod, prevents components from falling off, and enhances the smoothness and stability of door and window opening and closing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a side pressure door and window technology field, specifically disclose a kind of fast installation side pressure device, including transmission rod, side pressure sliding groove seat and pulley assembly, side pressure sliding groove seat upper end is along horizontal sliding fit with transmission rod, side pressure sliding groove seat is fixed in transmission rod after sliding to predetermined position by dowel screw;Through the sliding slot cooperation and dowel screw locking structure of side pressure sliding groove seat and transmission rod, realize punch-free installation and position stepless regulation, significantly reduce the dependence on transmission rod size precision;Pulley assembly is quickly clamped into door and window profile groove preposition by the positioning boss on sliding fixing seat, and the rolling guide in the lateral movable slot of combination limit component forms anti-falling sliding pair, ensure that side pressure sliding seat can only move horizontally along limited stroke;Temporary clamping support of cooperation auxiliary positioning block realizes zero-deviation installation.The present application can improve installation efficiency, reduce operating resistance and completely eliminate the risk of component falling.
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Description

Technical Field

[0001] This utility model relates to the field of sliding side-pressure doors and windows, and in particular to a quick-install side-pressure device. Background Technology

[0002] Side-pressure sliding doors and windows, as a type of door and window that combines convenient sliding with good sealing performance, rely on the effective cooperation between the side-pressure device and the transmission rod for their core function. The side-pressure device typically needs to achieve lateral compression and sealing when the door / window sash is closed, while allowing for smooth sliding when opened. The structural design and installation method of this device directly affect the overall performance, installation efficiency, and ease of subsequent maintenance of the door / window.

[0003] Existing side-pressure translation devices, such as the pulley side-pressure translation mechanism disclosed in Chinese Patent Publication No. CN119572087A, while achieving side-pressure sealing and translation functions, have significant limitations in their installation with the transmission rod. Such devices often require strict matching with transmission rods of specific specifications, which typically require pre-set precise mounting holes. This means that during installation, not only must the dimensional accuracy of the transmission rod be strictly controlled, but precise drilling is also necessary. If the transmission rod dimensions deviate or the hole positions are inaccurate, the installation of the side-pressure device becomes extremely difficult, or even impossible. Even if installation is successfully achieved, it may result in operational jamming and instability. This reliance on the high precision of the transmission rod and pre-drilled holes greatly limits installation flexibility, making it impossible to adjust the position according to actual site requirements, significantly increasing installation difficulty, time costs, and error rates, and reducing manual installation efficiency. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a quick-installation side-pressure device that completely eliminates the reliance on pre-drilled holes and high-precision dimensions of the transmission rod. An ideal design should allow the side-pressure device to slide flexibly to any suitable position on the transmission rod before being fixed, simplifying the installation process and achieving a truly quick-installation effect. Simultaneously, the device's structure must ensure reliable connection and fixation between it and the transmission rod, as well as between it and internal moving parts, while also allowing for smooth relative sliding. This ensures the stable and reliable side-pressure and translation functions of doors and windows, and effectively prevents components from accidentally falling off during operation.

[0005] A quick-install side-pressure device includes a transmission rod, a side-pressure slide seat, and a pulley assembly. The upper end of the side-pressure slide seat is slidably engaged with the transmission rod in a transverse direction. After the side-pressure slide seat slides to a predetermined position, it is fixed to the transmission rod by a set screw.

[0006] The pulley assembly includes a sliding fixed seat, a side-pressure slide seat that slides laterally with the lower end of the sliding fixed seat, pulley mounting plates fixed to the two sides of the lower end of the side-pressure slide seat, and a pulley rotatably disposed between the two pulley mounting plates. The upper end of the side-pressure slide seat is connected to a limiting component. The sliding fixed seat is provided with a transverse movable groove, and the limiting component moves within the transverse movable groove. The lower end of the side-pressure slide seat is provided with a side-pressure translation groove, and the upper end of the limiting component is inserted into the side-pressure translation groove. The sliding fixed seat is fixed to the door and window profile by fixing screws.

[0007] Specifically, the longitudinal section of the transmission rod is I-shaped, and the transmission rod is inserted laterally into the mounting groove of the door and window profile.

[0008] Specifically, the upper end of the side pressure slide seat is provided with a first slot, and the lower end of the transmission rod is provided with a T-shaped slider that can be inserted into the first slot laterally.

[0009] Specifically, the transmission rod has a transverse circular hole in the middle, and the debris generated when the set screw is screwed into the transmission rod is hidden in the circular hole.

[0010] Specifically, the upper end of the sliding fixed seat is provided with a horizontal stroke groove, and the side pressure sliding seat slides horizontally within the stroke groove.

[0011] Specifically, the upper end of the sliding fixing seat is provided with at least two sets of positioning protrusions arranged in parallel along the longitudinal direction, and the two positioning protrusions in each set are respectively engaged with the two ends of the mounting groove of the door and window profile.

[0012] Specifically, the limiting component includes a collar rivet fixed to the upper end of the side pressure slide and a rolling collar sleeved on the collar rivet. The side pressure slide is provided with a rivet hole for the collar rivet to be installed, and the rolling collar makes rolling contact with the transverse movable groove.

[0013] Specifically, the lower end of the sliding fixed seat is connected to a second slot, the upper end of the side pressure slide is inserted into the second slot, the inner side of the second slot is provided with a longitudinal guide arc-shaped protruding arc surface, and the upper end of the side pressure slide is provided with a guide concave arc surface that slides longitudinally with the guide arc-shaped protruding arc surface.

[0014] Specifically, the quick-installation side-pressure device also includes an auxiliary positioning block, the upper end of which passes through the pulley mounting plate and engages with the sliding fixed seat.

[0015] Specifically, at least one guide wheel is connected to the lower end of the side pressure slide, and the guide wheel is perpendicular to the axis of the pulley.

[0016] The beneficial effects of this utility model are:

[0017] The quick-installation side-pressure device of this application includes a transmission rod, a side-pressure slide seat, and a pulley assembly. The upper end of the side-pressure slide seat slides laterally with the transmission rod. After sliding to a predetermined position, the side-pressure slide seat is fixed to the transmission rod by a set screw. Through the sliding groove engagement between the side-pressure slide seat and the transmission rod, and the locking structure of the set screw, drilling-free installation and stepless position adjustment are achieved, significantly reducing the dependence on the dimensional accuracy of the transmission rod. The pulley assembly quickly engages with the door / window profile groove through the positioning boss on the sliding fixed seat, and, combined with the rolling guide of the limiting component in the transverse movable groove, forms an anti-fall-off sliding pair, ensuring that the side-pressure slide seat can only move horizontally along a limited stroke. The temporary snap-fit ​​support of the auxiliary positioning block achieves zero-deviation installation. This application can improve installation efficiency, reduce running resistance, and completely eliminate the risk of component detachment. Attached Figure Description

[0018] Figure 1 This is a perspective view of the quick-installation side-pressure device of this application;

[0019] Figure 2 This is an exploded view of the quick-installation side-pressure device of this application;

[0020] Figure 3 This is a perspective view of the transmission rod and side pressure sliding groove seat of this application installed on the door and window profile;

[0021] Figure 4 This is a right view of the transmission rod and side pressure sliding groove seat of this application installed on the door and window profile;

[0022] Figure 5 This is a cross-sectional view showing the transmission rod and the side pressure slide seat of this application fixed by set screws;

[0023] Figure 6 This is a schematic diagram of the structure of the quick-installation side-pressure device of this application installed on the door and window profile. Figure 1 ;

[0024] Figure 7 This is a schematic diagram of the structure of the quick-installation side-pressure device of this application installed on the door and window profile. Figure 2 ;

[0025] Figure 8 This is a schematic diagram of the structure of the sliding fixed seat and the side pressure sliding seat after assembly in this application;

[0026] Figure 9 This is a schematic diagram of the structure of the sliding fixed seat and the side pressure sliding seat before assembly.

[0027] The attached figures are labeled as follows: transmission rod 10, T-shaped slider 11, round hole 12, side pressure sliding seat 20, side pressure translation groove 21, first slot 22, pulley assembly 30, sliding fixed seat 31, transverse movable groove 311, stroke groove 312, positioning boss 313, second slot 314, guide arc-shaped raised arc surface 315, side pressure sliding seat 32, rivet hole 321, guide concave arc surface 322, pulley mounting plate 33, pulley 34, limiting assembly 35, collar rivet 351, rolling collar 352, guide wheel 36, set screw 40, door and window profile 50, mounting groove 51, auxiliary positioning block 60, fixing screw 70, limiting washer 80, and pulley rivet 90. Detailed Implementation

[0028] This utility model provides a quick-installation side-pressure device. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0029] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0030] Please refer to Figures 1 to 9 This embodiment discloses a quick-installation side-pressure device, including a transmission rod 10, a side-pressure slide seat 20 and a pulley assembly 30. The upper end of the side-pressure slide seat 20 is slidably engaged with the transmission rod 10 in a transverse direction. After the side-pressure slide seat 20 slides to a predetermined position, it is fixed to the transmission rod 10 by a set screw 40.

[0031] The pulley assembly 30 includes a sliding fixed seat 31, a side-pressure slide 32 that slides laterally with the lower end of the sliding fixed seat 31, a pulley mounting plate 33 fixed to the two sides of the lower end of the side-pressure slide 32, and a pulley 34 rotatably disposed between the two pulley mounting plates 33. The upper end of the side-pressure slide 32 is connected to a limiting component 35. The sliding fixed seat 31 is provided with a transverse movable groove 311, and the limiting component 35 is movable in the transverse movable groove 311. The lower end of the side-pressure slide seat 20 is provided with a side-pressure translation groove 21, and the upper end of the limiting component 35 is inserted into the side-pressure translation groove 21. The sliding fixed seat 31 is fixed to the door and window profile 50 by fixing screws 70.

[0032] The installation process of the quick-install side pressure device in this embodiment is as follows: First, the first slot 22 at the upper end of the side pressure sliding seat 20 is laterally fitted into the T-shaped slider 11 at the lower end of the transmission rod 10, so that the side pressure sliding seat 20 and the transmission rod 10 form a lateral sliding fit. Then, the entire transmission rod 10 is inserted into the mounting groove 51 of the door and window profile 50. At this time, the side pressure sliding seat 20 can slide freely laterally on the transmission rod 10. After adjusting to the predetermined position, the set screw 40 is vertically screwed into the round hole 12 in the middle of the transmission rod 10 to lock and fix the side pressure sliding seat 20. The metal debris generated during the tightening process falls into the round hole 12 to avoid interfering with the transmission.

[0033] Then, install the pulley assembly 30 as a whole: the positioning boss 313 at the upper end of the sliding fixing seat 31 is pre-positioned at both ends of the inner side of the mounting groove 51 of the door and window profile 50, and at the same time, the limiting component 35 at the upper end of the side pressure sliding seat 32 is inserted into the side pressure translation groove 21 at the lower end of the side pressure sliding groove seat 20. At this time, the side pressure sliding groove seat 20 is embedded in the travel groove 312 at the upper end of the sliding fixing seat 31; finally, the sliding fixing seat 31 is locked onto the door and window profile 50 with fixing screws 70, and the auxiliary positioning block 60 is removed to complete the installation.

[0034] The quick-install side-pressure device in this embodiment achieves drilling-free installation and stepless position adjustment through the sliding groove cooperation between the side-pressure sliding seat 20 and the transmission rod 10 and the flexible locking method of the set screw 40, which significantly improves installation efficiency and reduces the dimensional accuracy requirements of the transmission rod 10. The sliding fixed seat 31 and the side-pressure sliding seat 32 form an anti-drop sliding pair through the sliding cooperation of the transverse movable groove 311, the second slot 314 and the guide arc-shaped raised arc surface 315 and the guide concave arc surface 322, ensuring that the side-pressure sliding seat 32 can only move horizontally within a limited stroke. The rolling collar 352 of the limiting component 35 rolls in the transverse movable groove 311, effectively reducing frictional resistance and making the opening and closing of doors and windows smoother.

[0035] Please refer to Figure 4 and Figure 5 The longitudinal section of the transmission rod 10 is I-shaped. The transmission rod 10 is inserted into the mounting groove 51 of the door and window profile 50 along the side. The upper end of the transmission rod 10 is stuck in the mounting groove 51 of the door and window profile 50, so that the transmission rod 10 can only move laterally along the mounting groove 51, thereby improving the installation efficiency.

[0036] Please refer to Figure 5 The upper end of the side pressure slide seat 20 is provided with a first slot 22, and the lower end of the transmission rod 10 is provided with a T-shaped slider 11 that can be inserted into the first slot 22 laterally. The two wings of the lower end of the T-shaped slider 11 are locked in the first slot 22. The first slot 22 restricts the T-shaped slider 11 to slide and adjust its position only laterally.

[0037] Furthermore, the transmission rod 10 has a transverse circular hole 12 in the middle. When the set screw 40 is screwed into the transmission rod 10, the debris generated is hidden in the circular hole 12. When the T-shaped slider 11 slides along the first slot 22 to the predetermined position, the set screw 40 is screwed upward with a screwdriver or other tools. The debris generated when the set screw 40 is screwed into the transmission rod 10 is hidden in the circular hole 12, preventing metal debris from falling into the door and window profile 50 and causing the components to jam.

[0038] Please refer to Figure 6 and Figure 7 The upper end of the sliding fixed seat 31 is provided with a transverse travel groove 312, and the side pressure sliding seat 20 slides transversely within the travel groove 312. The travel groove 312 provides transverse sliding guidance and displacement constraint for the side pressure sliding seat 20. The groove wall of the travel groove 312 precisely limits the movement range of the side pressure sliding seat 20, so that the side pressure sliding seat 20 can only slide horizontally in the direction of door and window opening and closing; at the same time, the depth design of the groove makes it impossible for the side pressure sliding seat 20 to come out vertically after being embedded, ensuring that the side pressure sliding seat 20 always maintains a reliable connection with the sliding fixed seat 31 during the sliding process, avoiding separation due to vibration or external force.

[0039] like Figure 8 and Figure 9 As shown, the upper end of the sliding fixing seat 31 is also provided with at least two sets of longitudinally arranged positioning protrusions 313. The two positioning protrusions 313 in each set respectively engage with the inner ends of the mounting groove 51 of the door and window profile 50. The cooperation between the positioning protrusions 313 and the pulley assembly 30 can achieve rapid positioning. The structural design of the positioning protrusions 313 arranged in groups longitudinally ensures that the two positioning protrusions 313 in each group are precisely engaged with the inner ends of the mounting groove 51 of the door and window profile 50, forming a double-sided self-locking pre-fixing.

[0040] Please refer to Figure 2 , Figure 8 and Figure 9 The limiting component 35 includes a collar rivet 351 fixed to the upper end of the side pressure slide 32 and a rolling collar 352 sleeved on the collar rivet 351. The side pressure slide 32 is provided with a rivet hole 321 for the collar rivet 351 to be installed. The rolling collar 352 rolls in contact with the transverse movable groove 311. The limiting component 35 reduces movement resistance through rolling friction. The fixed connection between the collar rivet 351 and the rivet hole 321 ensures that the limiting component 35 and the side pressure slide 32 form a rigid whole. The rolling contact of the rolling collar 352 on the inner wall of the transverse movable groove 311 transforms the traditional sliding friction into efficient rolling friction, reducing the lateral movement resistance of the side pressure slide 32. At the same time, this structure forms a double constraint through the continuous line contact between the rolling collar 352 and the groove wall, which not only restricts the longitudinal displacement of the side pressure slide 32 to prevent it from falling out, but also precisely guides it to slide horizontally along the door and window opening and closing direction, ensuring that the running trajectory of the pulley 34 is always parallel to the track of the door and window profile 50, which greatly improves the smoothness of operation and the durability of the structure.

[0041] Please refer to Figure 9 The lower end of the sliding fixing seat 31 is connected to a second slot 314. The upper end of the side-pressure slide 32 is inserted into the second slot 314. The inner side of the second slot 314 is provided with a longitudinal guide arc-shaped protruding arc surface 315. The upper end of the side-pressure slide 32 is provided with a guide concave arc surface 322 that slides longitudinally with the guide arc-shaped protruding arc surface 315. During installation, the upper end of the side-pressure slide 32 is directly embedded longitudinally into the second slot 314 of the sliding fixing seat 31 to form an initial position. When the door or window sash is subjected to lateral pressure, the guide concave arc surface 322 of the side-pressure slide 32 slides slightly longitudinally along the guide arc-shaped protruding arc surface 315 on the inner side of the second slot 314. The vertical height of the side-pressure slide 32 is adaptively adjusted by the arc surface fitting. At the same time, the groove wall of the second slot 314 restricts the lateral displacement of the side-pressure slide 32, realizing a dual anti-detachment function. This structure transforms sliding friction into arc-shaped rolling friction, significantly reducing frictional resistance and absorbing the vibration and impact of door and window sashes. It ensures that the side pressure slide 32 always maintains precise guiding fit with the sliding fixed seat 31 when bearing vertical loads, completely eliminating the risk of jamming and improving the stability of side pressure sealing and smoothness of translation.

[0042] Please refer to Figure 2 , Figure 6 and Figure 7 The quick-install side-pressure device also includes an auxiliary positioning block 60. The upper end of the auxiliary positioning block 60 passes through the pulley mounting plate 33 and engages with the sliding fixing seat 31. During installation, the upper end of the auxiliary positioning block 60 passes through the gap between the pulley mounting plate 33 and engages with the temporary snap-fit ​​structure at the bottom of the sliding fixing seat 31. At this time, the limiting surface of the auxiliary positioning block 60 forcibly abuts against the side edge of the pulley 34, keeping the entire pulley assembly 30 in a vertical positioning state with the door and window profile 50. Through this design, instantaneous rigid support is provided before tightening the fixing screw 70, completely eliminating the skew error that may occur during manual straightening; after fixing, the auxiliary positioning block 60 can be directly pulled out to achieve quick positioning.

[0043] Please refer to Figure 2 At least one guide wheel 36 is connected to the lower end of the side-pressure slide 32. The axis of the guide wheel 36 is perpendicular to that of the pulley 34. The guide wheel 36 can enhance the stability of the running trajectory of the door and window sash. The design of the axis of the guide wheel 36 being perpendicular to the pulley 34 allows the guide wheel 36 to form rolling contact with the side wall of the door and window track. When the door and window sash is subjected to lateral wind force or opening and closing inertial force, the guide wheel 36 immediately counteracts the lateral displacement trend by rolling against the side wall of the track; at the same time, it forms a spatial right angle bidirectional constraint with the pulley 34, which not only maintains the load-bearing capacity of the pulley 34 for vertical loads, but also completely eliminates the risk of horizontal swaying of the door and window sash, ensuring that the translation process always runs smoothly along a straight track, which can reduce wear.

[0044] Please refer to Figure 2A pulley rivet 90 connects the two pulley mounting plates 33. A pulley 34 is specifically mounted on the pulley rivet 90, and multiple limiting washers 80 are also provided on the pulley rivet 90. The limiting washers 80 are used to separate the two pulleys 34 along the axial direction. By separating the distance between adjacent pulleys 34 through the limiting washers 80, abnormal wear and running resistance caused by axial friction between the pulleys 34 are eliminated. At the same time, the overall rigidity of the pulley assembly 30 is enhanced, ensuring that each pulley 34 rolls independently on the door and window track without axial movement, improving load uniformity and smoothness of translation.

[0045] The preferred embodiments of this utility model have been described in detail above. However, this invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this invention.

Claims

1. A quick-release side-pressure device, comprising a transmission rod (10), a side-pressure slide seat (20), and a pulley assembly (30), characterized in that: The upper end of the side pressure slide seat (20) is slidably engaged with the transmission rod (10) in the lateral direction. After the side pressure slide seat (20) slides to the predetermined position, it is fixed to the transmission rod (10) by the set screw (40). The pulley assembly (30) includes a sliding fixed seat (31), a side pressure slide seat (32) that slides laterally with the lower end of the sliding fixed seat (31), pulley mounting plates (33) fixed on both sides of the lower end of the side pressure slide seat (32), and a pulley (34) rotatably disposed between the two pulley mounting plates (33). The upper end of the side pressure slide seat (32) is connected to a limiting component (35). The sliding fixed seat (31) is provided with a transverse movable groove (311). The limiting component (35) moves within the transverse movable groove (311). The lower end of the side pressure slide seat (20) is provided with a side pressure translation groove (21). The upper end of the limiting component (35) is inserted into the side pressure translation groove (21). The sliding fixed seat (31) is fixed to the door and window profile (50) by fixing screws (70).

2. The quick-installation side-pressure device according to claim 1, characterized in that: The longitudinal section of the transmission rod (10) is I-shaped, and the transmission rod (10) is inserted laterally into the mounting groove (51) of the door and window profile (50).

3. A quick-installation side-pressure device according to claim 1 or 2, characterized in that: The upper end of the side pressure slide seat (20) is provided with a first slot (22), and the lower end of the transmission rod (10) is provided with a T-shaped slider (11) that can be inserted into the first slot (22) laterally.

4. The quick-installation side-pressure device according to claim 1, characterized in that: The transmission rod (10) has a transverse circular hole (12) in the middle, and the debris generated when the set screw (40) is screwed into the transmission rod (10) is hidden in the circular hole (12).

5. The quick-installation side-pressure device according to claim 1, characterized in that: The upper end of the sliding fixed seat (31) is provided with a horizontal stroke groove (312), and the side pressure sliding seat (20) slides horizontally in the stroke groove (312).

6. The quick-installation side-pressure device according to claim 1, characterized in that: The upper end of the sliding fixing seat (31) is also provided with at least two sets of positioning bosses (313) arranged in parallel along the longitudinal direction. The two positioning bosses (313) of each set are respectively engaged with the two ends of the mounting groove (51) of the door and window profile (50).

7. The quick-installation side-pressure device according to claim 1, characterized in that: The limiting component (35) includes a collar rivet (351) fixed to the upper end of the side pressure slide (32) and a rolling collar (352) sleeved on the collar rivet (351). The side pressure slide (32) is provided with a rivet hole (321) for the collar rivet (351) to be installed. The rolling collar (352) is in rolling contact with the transverse movable groove (311).

8. The quick-installation side-pressure device according to claim 1, characterized in that: The lower end of the sliding fixed seat (31) is connected to a second slot (314), and the upper end of the side pressure slide (32) is inserted into the second slot (314). The inner side of the second slot (314) is provided with a longitudinal guide arc-shaped protruding arc surface (315), and the upper end of the side pressure slide (32) is provided with a guide concave arc surface (322) that slides longitudinally with the guide arc-shaped protruding arc surface (315).

9. A quick-installation side-pressure device according to claim 1, characterized in that: The quick-installation side pressure device also includes an auxiliary positioning block (60), the upper end of which passes through the pulley mounting plate (33) and engages with the sliding fixing seat (31).

10. A quick-installation side-pressure device according to claim 1, characterized in that: The lower end of the side pressure slide (32) is also connected to at least one guide wheel (36), and the guide wheel (36) is perpendicular to the axis of the pulley (34).