Tightening handle structure with rotation stopping and limiting device
By optimizing the structure of the clamping handle, adopting a limiting device, and simplifying the lock design, the problems of easy damage and complex structure of existing clamping handles in the unlocked state have been solved, thereby improving the reliability and aesthetics of the handle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-03
AI Technical Summary
The existing locking handle is prone to free movement when unlocked, which may damage the structure. The lock structure is complex and costly, and the installation is complicated and unsightly.
Design a clamping handle structure with anti-rotation limiting device, including a handle part and a mounting base. Through optimization of the limiting post, limiting groove, limiting paddle and lock, the handle can be locked in one direction and the lock structure can be simplified, increasing the convenience of installation and stability.
It improves the reliability and stability of the handle, simplifies the lock structure, reduces production and maintenance costs, and ensures stability and aesthetics for long-term use.
Smart Images
Figure CN223964284U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of clamping lock technology, specifically, it relates to a clamping handle structure with an anti-rotation limiting device. Background Technology
[0002] As industrial enclosures and cabinets face increasingly stringent environmental requirements, the market demand for high-performance sealing devices is growing. Industrial enclosures and cabinets face increasingly stringent environmental requirements; some require sealing capabilities, while others need to withstand special environments such as high temperatures and high pressures. To address this, forcing devices have emerged on the market, applying pressure or forcibly fixing the enclosure door panel to ensure a leak-proof seal. However, existing forcing handles have the following drawbacks: In the unlocked state, the handle can move freely, easily leading to uncontrolled movement during closing, potentially damaging the handle itself or surrounding structures. The lock structure is complex, typically requiring intricate linkage mechanisms, resulting in high costs and susceptibility to damage. The installation structure is complex, often requiring decorative elements to conceal the installation area, increasing production and installation complexity and potentially compromising the device's aesthetic appeal. Utility Model Content
[0003] In view of this, the present invention provides a clamping handle structure with an anti-rotation limiting device, which can solve the problems of existing clamping handles having complex structure, high manufacturing and maintenance costs, and poor stability.
[0004] This utility model is implemented as follows:
[0005] This utility model provides a clamping handle structure with an anti-rotation limiting device, comprising a handle portion and a clamping portion, respectively mounted on mutually cooperating carriers; the handle portion includes a handle body and a mounting base, a main shaft is provided on one side of the handle body, the main shaft and the handle body form an integral unit; the mounting base includes a sleeve flange and a mounting base, the mounting base being used to connect to the corresponding carrier; the main shaft is inserted into a bushing provided inside the sleeve flange, for connecting the handle body and the mounting base and realizing relative rotation; the handle body is provided with a clamping inclined surface, the clamping inclined surface following the rotation of the handle body to realize clamping connection and unlocking separation with the clamping portion.
[0006] Based on the above technical solution, the clamping handle structure with anti-rotation limiting device of this utility model can be further improved as follows:
[0007] The mounting base is equipped with a fixing baffle, which is inserted into the annular groove on the main shaft through a groove provided on the back of the mounting base.
[0008] Furthermore, the fixing baffle is fixed to the mounting base by screws, which is used to prevent the mounting base and the fixing baffle from retracting and to allow relative rotation between the handle body and the mounting base.
[0009] Furthermore, a limiting post is provided on the handle body, and the limiting post protrudes to one side of the handle body.
[0010] Furthermore, the mounting base is provided with a first limiting groove, the size of which is larger than that of the limiting post. The limiting post is inserted into the first limiting groove to restrict the relative rotation of the handle body and the mounting base within a certain range.
[0011] Furthermore, the handle body is provided with a limiting paddle, which has a slot, a guide end, and a trigger end. The limiting paddle is fixed to the boss of the handle body by a stepped screw. The limiting paddle rotates around the stepped screw. A torsion spring is provided between the limiting paddle and the handle body, with its two ends fixed to the limiting paddle and the handle body respectively. As the handle body and the mounting base rotate, the guide end guides the limiting rib on the mounting base into the slot, thereby restricting the handle body and the mounting base from continuing to rotate relative to each other. The trigger end is subjected to force to continue rotating the limiting paddle, thereby separating the limiting rib from the slot and allowing the handle body and the mounting base to continue to rotate relative to each other.
[0012] Furthermore, a lock is installed on the handle body, the lock including a lock cylinder, a lock tongue, a nut, and a fixing pin. The lock cylinder passes through a fixing hole on the handle body and is fixed to the handle body by the nut. The lock tongue and the lock cylinder rotate synchronously through a convex-concave fit. The lock tongue is provided with a second limiting groove and a notch. When the lock cylinder rotates to the locked position, the locking rib on the mounting base enters the second limiting groove to restrict the relative rotation of the handle body and the mounting base, so that the handle is in a tightened state. When the lock cylinder rotates to the open position, the locking rib enters the notch, and the handle body and the mounting base rotate relative to each other.
[0013] Furthermore, the handle body is provided with a support rib, and the second limiting groove is located in the support rib, so that the bolt is supported by the support rib when it is subjected to axial force, so as to avoid the external force being directly transmitted to the lock cylinder and prevent the lock cylinder from being damaged by force.
[0014] Furthermore, the handle body is provided with a hooking part, which is connected to the tightening ramp. The tightening ramp is used to guide the hooking part to hook onto the tightening part to achieve a tightening connection.
[0015] Furthermore, the handle body is provided with a padlock hole, and the mounting base is provided with a lock lug. The padlock hole and the lock lug are used to achieve double locking of the handle by adding a padlock.
[0016] Compared with existing technologies, the advantages of the clamping handle structure with anti-rotation limiting device provided by this utility model are as follows: The clamping handle structure provided by this utility model optimizes the latch structure, eliminating complex linkage mechanisms and making the lock simple and reliable. It adds a one-way locking mechanism to the handle, enhancing its reliability. The optimized handle installation structure facilitates installation and maintenance. Furthermore, the support rib design improves the durability of the lock, ensuring stability during long-term use. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is an external structural diagram of a clamping handle structure with an anti-rotation limiting device;
[0019] Figure 2 This is a schematic diagram of the internal structure of a clamping handle with an anti-rotation limiting device.
[0020] Figure 3 This is a schematic diagram of the specific structure of the handle.
[0021] Figure 4 This is a schematic diagram of the specific structure of the handle body;
[0022] Figure 5 This is a schematic diagram of the specific structure of the mounting base;
[0023] Figure 6 This is a schematic diagram of the internal structure of the handle body;
[0024] Figure 7 This is a schematic diagram of the limit lever structure;
[0025] Figure 8 This is a schematic diagram of the locking tongue structure;
[0026] The attached diagram lists the components represented by each number as follows:
[0027] 1. Handle; 11. Handle body; 111. Main shaft; 112. Clamping ramp; 113. Limiting post; 114. Boss; 115. Support rib; 116. Fixing hole; 117. Padlock hole; 118. Hook-on part; 12. Mounting base; 121. Sleeve flange; 122. Mounting chassis; 123. Bushing; 124. First limiting groove; 125. Limiting rib; 126. Locking rib; 127. Lock lug; 13. Fixing baffle; 14. Screw; 15. Limiting lever; 151. Slot; 152. Guide end; 153. Trigger end; 16. Step screw; 17. Torsion spring; 18. Lock; 181. Lock cylinder; 182. Lock tongue; 1821. Second limiting groove; 1822. Notch; 183. Nut; 184. Fixing pin; 2. Clamping part. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0029] like Figure 1-8 The diagram shows an embodiment of a clamping handle structure with an anti-rotation limiting device provided by this utility model. In this embodiment, it includes a handle part 1 and a clamping part 2, which are respectively installed on mutually cooperating carriers. The handle part 1 includes a handle body 11 and a mounting base 12. A main shaft 111 is provided on one side of the handle body 11, and the main shaft 111 and the handle body 11 form an integral unit. The mounting base 12 includes a sleeve flange 121 and a mounting base 122, which is used to connect to the corresponding carrier. The main shaft 111 is inserted into a bushing 123 provided inside the sleeve flange 121, so that the handle body 11 and the mounting base 12 are connected and can rotate relative to each other. A clamping inclined surface 112 is provided on the handle body 11, and the clamping inclined surface 112 follows the rotation of the handle body 11 to achieve clamping connection and unlocking separation with the clamping part 2.
[0030] In the above technical solution, a fixing baffle 13 is installed on the mounting base 12, and the fixing baffle 13 is inserted into the annular groove on the spindle 111 through the groove provided on the back of the mounting base 12.
[0031] Furthermore, in the above technical solution, the fixed baffle 13 is fixed to the mounting base 12 by screws 14, which is used to prevent the mounting base 12 and the fixed baffle 13 from being pulled back and to allow relative rotation between the handle body 11 and the mounting base 12.
[0032] Furthermore, in the above technical solution, a limiting post 113 is provided on the handle body 11, and the limiting post 113 protrudes to one side of the handle body 11.
[0033] Furthermore, in the above technical solution, the mounting base 12 is provided with a first limiting groove 124. The size of the first limiting groove 124 is larger than that of the limiting post 113. The limiting post 113 is inserted into the first limiting groove 124 to limit the relative rotation of the handle body 11 and the mounting base 12 within a certain range.
[0034] Furthermore, in the above technical solution, a limiting paddle 15 is provided on the handle body 11. The limiting paddle 15 is provided with a slot 151, a guide end 152, and a trigger end 153. The limiting paddle 15 is fixed to the boss 114 of the handle body 11 by a stepped screw 16. The limiting paddle 15 rotates around the stepped screw 16. A torsion spring 17 is provided between the limiting paddle 15 and the handle body 11. The two ends of the torsion spring 17 are fixed to the limiting paddle 15 and the handle body 11, respectively. When the handle body 11 and the mounting base 12 rotate, the guide end 152 guides the limiting rib 125 on the mounting base 12 into the slot 151, thereby restricting the handle body 11 and the mounting base 12 from continuing to rotate relative to each other. The trigger end 153 continues to rotate the limiting paddle 15 under force, which is used to separate the limiting rib 125 from the slot 151, so that the handle body 11 and the mounting base 12 continue to rotate relative to each other.
[0035] Furthermore, in the above technical solution, a lock 18 is installed on the handle body 11. The lock 18 includes a lock cylinder 181, a lock tongue 182, a nut 183, and a fixing pin 184. The lock cylinder 181 passes through the fixing hole 116 on the handle body 11 and is fixed to the handle body 11 by the nut 183. The lock tongue 182 and the lock cylinder 181 rotate synchronously through a convex-concave fit. The lock tongue 182 is provided with a second limiting groove 1821 and a notch 1822. When the lock cylinder 181 rotates to the locked position, the locking rib 126 on the mounting base 12 enters the second limiting groove 1821 to limit the relative rotation between the handle body 11 and the mounting base 12, so that the handle is in a tightened state. When the lock cylinder 181 rotates to the open position, the locking rib 126 enters the notch 1822, and the handle body 11 and the mounting base 12 rotate relative to each other.
[0036] Furthermore, in the above technical solution, a support rib 115 is provided on the handle body 11, and the second limiting groove 1821 is located in the support rib 115, so that the bolt 182 is supported by the support rib 115 when it is subjected to axial force, so as to avoid the external force being directly transmitted to the lock cylinder 181 and prevent the lock cylinder 181 from being damaged by force.
[0037] Furthermore, in the above technical solution, the handle body 11 is provided with a hook part 118, which is connected to the clamping slope 112. The clamping slope 112 is used to guide the hook part 118 to hook onto the clamping part 2 to achieve a clamping connection.
[0038] Furthermore, in the above technical solution, the handle body 11 is provided with a padlock hole 117, and the mounting base 12 is provided with a lock nose 127. The padlock hole 117 and the lock nose 127 are used to achieve double locking of the handle part 1 by adding a padlock.
[0039] Specifically, the principle of this utility model is as follows: In use, the main shaft 111 is inserted into the bushing 123 inside the sleeve flange 121, so that the handle body 11 and the mounting base 12 are connected together and can rotate relative to each other; the clamping inclined surface 112 follows the rotation of the handle body 11 to achieve clamping connection or unlocking separation with the clamping part 2. The limiting post 113 can be inserted into the limiting groove 124 to restrict the relative rotation of the handle body 11 and the mounting base 12 within a certain range.
[0040] When the handle body 11 and the mounting base 12 are rotated to a specific angle, the limiting rib 125 on the mounting base 12 will enter the slot 151 of the limiting rib 15 under the guidance of the guide end 152 of the limiting rib 15. At this time, the handle body 11 cannot rotate relative to the mounting base 12. Only when the trigger end 153 of the limiting rib 15 is subjected to force and the limiting rib 15 rotates at a certain angle, the limiting rib 125 on the mounting base 12 separates from the slot 151 of the limiting rib 15. At this time, the mounting base 12 can rotate relative to the handle body 11.
[0041] When the handle is in the locked position, rotating the lock cylinder 181 to the locked position will cause the locking rib 126 on the mounting base 12 to enter the limiting groove 1821 of the bolt 182. At this time, the handle body 11 and the mounting base 12 cannot rotate relative to each other. When the lock cylinder 181 is rotated to the open position, the locking rib 126 on the mounting base 12 enters the notch 1822 of the bolt 182. At this time, the handle body 11 and the mounting base 12 can rotate relative to each other.
Claims
1. A jamb latch structure with a rotation-stopping limiting device, characterized by comprising: The handle part (1) and the pressing part (2) are respectively installed on the mutually matched carriers; the handle part (1) comprises a handle body (11) and a mounting base (12), one side of the handle body (11) is provided with a main shaft (111) which is formed integrally with the handle body (11); the mounting base (12) comprises a sleeving flange (121) and a mounting base (122) which is used for being connected on the corresponding carrier; the main shaft (111) is inserted into a shaft sleeve (123) arranged inside the sleeving flange (121) for connecting the handle body (11) with the mounting base (12) and realizing the relative rotation; a pressing inclined surface (112) is arranged on the handle body (11) and realizes the pressing connection and unlocking separation with the pressing part (2) following the rotation of the handle body (11).
2. A jam handle structure with a rotation-stopping limiting device according to claim 1, characterized in that A fixing baffle (13) is mounted on the mounting base (12) and is inserted into a ring groove on the main shaft (111) through a groove arranged on the back of the mounting base (12).
3. A jam handle structure with a rotation-stopping limiting device according to claim 2, characterized in that The fixing baffle (13) is fixed with the mounting base (12) through a screw (14) for preventing the retreat connection of the mounting base (12) and the fixing baffle (13) and satisfying the relative rotation of the handle body (11) and the mounting base (12).
4. A jam handle structure with a rotation-stopping limiting device according to claim 3, characterized in that A limiting column (113) is arranged on the handle body (11) and protrudes to one side of the handle body (11).
5. A forcing handle structure with a rotation-stopping limiting device according to claim 4, characterized in that A first limiting groove (124) is arranged on the mounting base (12) and the size of the first limiting groove (124) is greater than that of the limiting column (113), the limiting column (113) is inserted into the first limiting groove (124) for limiting the relative rotation of the handle body (11) and the mounting base (12) within a certain range.
6. A twist stop handle structure according to claim 5, wherein The handle body (11) is provided with a limiting toggle (15), the limiting toggle (15) is provided with a clamping groove (151), a guide end (152) and a trigger end (153), the limiting toggle (15) is fixed on the boss (114) of the handle body (11) through a stepped screw (16); the limiting toggle (15) rotates around the stepped screw (16), a torsion spring (17) is arranged between the limiting toggle (15) and the handle body (11), and the two ends of the torsion spring (17) are fixed with the limiting toggle (15) and the handle body (11) respectively; the guide end (152) guides the limiting rib (125) on the mounting seat (12) to enter the clamping groove (151) while the handle body (11) and the mounting seat (12) rotate, so that the handle body (11) and the mounting seat (12) are limited to continue relative rotation; the trigger end (153) is forced to continue to rotate the limiting toggle (15), so that the limiting rib (125) is separated from the clamping groove (151), and the handle body (11) and the mounting seat (12) continue to rotate relative to each other.
7. A twist stop handle structure according to claim 6, wherein The handle body (11) is provided with a lock (18), the lock (18) includes a lock cylinder (181), a lock tongue (182), a nut (183) and a fixing nail (184), the lock cylinder (181) passes through the fixing hole (116) on the handle body (11) and is fixed on the handle body (11) through the nut (183); the lock tongue (182) and the lock cylinder (181) are synchronously rotated through concave-convex matching; the lock tongue (182) is provided with a second limiting groove (1821) and a notch (1822), when the lock cylinder (181) is rotated to a locking position, the locking rib (126) on the mounting seat (12) enters the second limiting groove (1821), so as to limit the relative rotation of the handle body (11) and the mounting seat (12), so that the handle is in a forced state; when the lock cylinder (181) is rotated to an open position, the locking rib (126) enters the notch (1822), and the handle body (11) and the mounting seat (12) are relatively rotated.
8. A twist stop handle structure according to claim 7, wherein The handle body (11) is provided with a supporting rib (115), and the second limiting groove (1821) is located in the supporting rib (115), so that the lock tongue (182) is supported by the supporting rib (115) when subjected to an axial force, so as to avoid that an external force is directly conducted to the lock cylinder (181) and prevent the lock cylinder (181) from being damaged by force.
9. A twist stop handle structure according to claim 8, wherein The handle body (11) is provided with a hanging part (118), the hanging part (118) is arranged in connection with the forced inclined surface (112), and the forced inclined surface (112) is used for guiding the hanging part (118) to be hung on the forced part (2), so as to realize forced connection.
10. A twist stop handle structure according to claim 9, wherein The handle body (11) is provided with a padlock hole (117), and the mounting seat (12) is provided with a lock nose (127), and the padlock hole (117) and the lock nose (127) are used for realizing double locking of the handle part (1) through an additional padlock.