Constant temperature valve core valve rod oiling and sealing ring assembly device

Abstract

This utility model aims to provide a device for oiling the valve stem and assembling the sealing ring of a thermostatic valve core. It includes a support seat, a guide seat, and a ring assembly. The support seat has a material loading groove for receiving the valve stem along the vertical direction and an oil injection hole along the side. The guide seat has an inclined conical surface on its outer wall, with the outer diameter of the conical surface increasing from top to bottom. The guide seat is used to fasten onto the valve stem. The ring assembly includes a sleeve, a pressure block, a pressing elastic element, several top-holding blocks, and several top-holding elastic elements. The bottom wall of the sleeve has a sliding cavity. The pressure block is slidably disposed within the sliding cavity. The pressing elastic elements abut against the pressure block and the sleeve respectively. Each top-holding block is slidably disposed within the sleeve along the radial direction of the sliding cavity, and each top-holding block is circumferentially distributed around the sliding cavity. One end of each top-holding elastic element abuts against each top-holding block, and the other end of each top-holding elastic element abuts against the sleeve. The top-holding elastic elements are used to push the top-holding blocks so that part of the top-holding block extends into the sliding cavity.

Description

Technical Field

[0001] This utility model relates to the technical field of valve core assembly, and in particular to a device for applying oil to the valve stem and assembling a sealing ring for a thermostatic valve core. Background Technology

[0002] A thermostatic valve core is a device that automatically adjusts the mixing ratio of hot and cold water to maintain the temperature of the mixed water at a set temperature.

[0003] like Figure 6 The valve stem 20 shown is an accessory of the thermostatic valve core. Its bottom external thread needs to be oiled for subsequent screw assembly. At the same time, the sealing ring 30 also needs to be fitted into the annular groove 21 in the middle of the valve stem 20.

[0004] However, since the sealing ring 30 has high elasticity, it needs to be stretched open to be assembled in the annular groove 21. In order to facilitate the assembly of the sealing ring 30 and at the same time apply oil to the external thread of the valve stem 20, thereby improving the processing efficiency, the thermostatic valve core and valve stem oiling and sealing ring assembly device of this application is proposed. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a thermostatic valve core and valve stem oiling and sealing ring assembly device that facilitates the assembly of the sealing ring while simultaneously applying oil to the external thread of the valve stem to improve assembly efficiency.

[0006] The technical solution adopted in this utility model is:

[0007] A thermostatic valve core and stem oiling and sealing ring assembly device, comprising:

[0008] The support seat has a material loading groove for receiving the valve stem along the vertical direction, and an oil injection hole is provided along the side.

[0009] A guide seat, wherein an inclined conical surface is provided on the outer side wall of the guide seat, the outer diameter of the inclined conical surface increasing from top to bottom, the guide seat being used to fasten onto the valve stem; and

[0010] A ring assembly includes a ring base, a pressure block, a pressure-holding elastic element, a plurality of top-holding blocks, and a plurality of top-holding elastic elements. The bottom wall of the ring base has a sliding cavity. The pressure block is slidably disposed within the sliding cavity. The pressure-holding elastic elements abut against the pressure block and the ring base respectively. Each top-holding block is slidably disposed within the ring base along the radial direction of the sliding cavity, and the top-holding blocks are circumferentially distributed around the sliding cavity. One end of each top-holding elastic element abuts against the respective top-holding block, and the other end of each top-holding elastic element abuts against the ring base. The top-holding elastic elements are used to push against the top-holding blocks, so that a portion of the structure of the top-holding block extends into the sliding cavity.

[0011] When the sleeve is fitted onto the guide seat, the pressure block presses against the guide seat, and each of the top holding blocks abuts against the inclined conical surface of the guide seat, thereby causing each of the top holding blocks to push the sealing ring along the inclined conical surface into the annular groove.

[0012] Optionally, the sleeve includes a seat body and a bottom ring, the sliding cavity is located in the seat body, the bottom ring is disposed on the bottom wall of the seat body, each of the top holding blocks and each of the top holding elastic elements are located in the bottom ring, and the inner diameter of the bottom ring is smaller than the outer diameter of the pressure block.

[0013] Optionally, the sleeve further includes several blocking blocks, and the bottom ring has several side holes along the radial direction. Each of the top holding blocks and each of the top holding elastic members are located in the side holes. The blocking blocks are screwed into the side holes and abut against the top holding elastic members.

[0014] Optionally, the sleeve further includes a fixing post, which is disposed on the end of the seat body away from the bottom ring.

[0015] Optionally, the support includes a base block, a material block, and two locking blocks. The material loading groove is located on the material block, and the oil injection hole is located on the base block. The material block is detachably mounted on the base block, and the two locking blocks are both mounted on the base block. The two locking blocks are used to engage the opposite sides of the material block.

[0016] Optionally, the material block has a first inclined surface on each of its opposite sides, and the clamping block has a second inclined surface, with the two second inclined surfaces used to fit together with the two first inclined surfaces.

[0017] Optionally, the material block is provided with a plurality of oil seepage holes along the side, and the oil seepage holes are connected to the oil injection holes.

[0018] Optionally, the support seat further includes a spacer sleeve disposed on the base block to form an oil cavity between the spacer sleeve and the base block. The oil cavity communicates with the oil injection hole. The material block is detachably disposed inside the spacer sleeve, and the oil leakage hole communicates with the oil cavity.

[0019] Optionally, two first sealing rings are provided between the spacer and the material block, and the two first sealing rings are located on both sides of the oil seepage hole along the radial direction of the material loading groove.

[0020] Optionally, the bearing seat further includes a support frame, and the base block, the spacer, and the material block are all disposed on the support frame.

[0021] The beneficial effects of this utility model are:

[0022] This utility model discloses a thermostatic valve core and valve stem oiling and sealing ring assembly device, comprising a support seat, a guide seat, and a ring assembly. The support seat has a material loading groove for receiving the valve stem along the vertical direction, and an oil injection hole along the side. The outer wall of the guide seat is provided with an inclined conical surface, the outer diameter of which increases from top to bottom. The guide seat is used to fasten onto the valve stem. The ring assembly includes a sleeve, a pressure block, a pressing elastic element, several top holding blocks, and several pressing elastic elements. The bottom wall of the sleeve has a sliding cavity, and the pressure block is slidably disposed in the sliding cavity. The pressing elastic elements are respectively connected to... The pressure block and the sleeve abut against each other. Each supporting block is slidably disposed within the sleeve along the radial direction of the sliding cavity, and each supporting block is circumferentially distributed around the sliding cavity. One end of each supporting elastic element abuts against the supporting block, and the other end of each supporting elastic element abuts against the sleeve. The supporting elastic element is used to push the supporting block so that part of the supporting block extends into the sliding cavity. When the sleeve is fitted onto the guide seat, it causes the pressure block to press against the guide seat, and causes each supporting block to abut against the inclined conical surface of the guide seat, thereby causing each supporting block to push the sealing ring to slide into the annular groove along the inclined conical surface. In this way, the thermostatic valve core and valve stem oiling and sealing ring assembly device of this application can oil the valve stem while assembling the sealing ring conveniently and quickly, effectively improving assembly efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a thermostatic valve core and valve stem oiling and sealing ring assembly device according to one embodiment of the present invention.

[0024] Figure 2 for Figure 1 The diagram shows another state of the thermostatic valve core and stem oiling and sealing ring assembly device.

[0025] Figure 3 for Figure 2 A cross-sectional schematic diagram of the thermostatic valve core and stem oiling and sealing ring assembly device shown.

[0026] Figure 4 for Figure 2 A cross-sectional view of the thermostatic valve core and stem oiling and sealing ring assembly device from another angle.

[0027] Figure 5 This is a partial structural schematic diagram of the support base according to one embodiment of the present utility model;

[0028] Figure 6 This is a schematic diagram of the valve stem and sealing ring before and after assembly, according to one embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 20. Valve stem; 30. Sealing ring; 21. Annular groove; 10. Thermostatic valve core and valve stem oiling and sealing ring assembly device; 100. Bearing seat; 200. Guide seat; 300. Ring assembly; 121. Material loading groove; 111. Oil injection hole; 210. Inclined cone surface; 310. Sleeve seat; 320. Pressure block; 330. Pressing elastic element; 340. Top holding block; 350. Top holding elastic element; 3111. Sliding cavity; 311. Seat body; 312. Bottom ring; 313. Block; 3121. Side hole; 314. Fixing column; 110. Base block; 120. Material loading block; 130. Clamping block; 122. First inclined surface; 131. Second inclined surface; 123. Oil seepage hole; 140. Spacer; 112. Oil cavity; 150. First sealing ring; 160. Support frame. Detailed Implementation

[0031] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model.

[0032] like Figures 1 to 4 As shown, a thermostatic valve core and valve stem oiling and sealing ring assembly device 10 includes a support seat 100, a guide seat 200, and a ring assembly 300. The support seat 100 has a material loading groove 121 for receiving the valve stem 20 along the vertical direction, and an oil injection hole 111 along the side. The outer wall of the guide seat 200 is provided with an inclined conical surface 210, the outer diameter of which increases from top to bottom. The guide seat 200 is used to fasten onto the valve stem 20. The ring assembly 300 includes a sleeve 310, a pressure block 320, a pressing elastic element 330, a plurality of supporting blocks 340, and a plurality of supporting elastic elements 350. The bottom wall of the sleeve 310 has a sliding cavity 3111, the pressure block 320 is slidably disposed in the sliding cavity 3111, and the pressing elastic elements 330 are respectively connected to the pressure block 310. The sleeve 310 and the top support block 340 are abutted together. Each top support block 340 is slidably disposed in the sleeve 310 along the radial direction of the sliding cavity 3111. Each top support block 340 is circumferentially distributed around the sliding cavity 3111. One end of each top support elastic member 350 abuts against each top support block 340, and the other end of each top support elastic member 350 abuts against the sleeve 310. The top support elastic member 350 is used to push the top support block 340 so that part of the structure of the top support block 340 extends into the sliding cavity 3111. When the sleeve 310 is sleeved on the guide seat 200, the pressure block 320 presses the guide seat 200, and each top support block 340 abuts against the inclined conical surface 210 of the guide seat 200, so that each top support block 340 pushes the sealing ring 30 to slide into the annular groove 21 along the inclined conical surface 210.

[0033] It should be noted that the collar assembly 300, guide seat 200, and bearing seat 100 are separate and independent of each other. In use, the threaded portion of the valve stem 20 is inserted into the material loading groove 121, and then the guide seat 200 is fitted onto the valve stem 20, so that the bottom end face of the guide seat 200 abuts against the valve stem 20. The diameter of the tapered surface 210 of the guide seat 200 gradually increases from top to bottom, and the outer diameter of the end of the guide seat 200 that abuts against the valve stem 20 is consistent with the outer diameter of the valve stem 20 at the connection point. Next, the sealing ring 30 is fitted onto the top of the guide seat 200. Finally, the sleeve 310 is fitted onto the guide seat 200 and pressed down. During this process, the holding elastic element 330 first pushes the pressure block 320 close to the lower end face of the sleeve 310, so the pressure block 320 will first abut against the top of the guide seat 200. Furthermore, under the pushing action of each supporting elastic element 350, each supporting block 340 abuts against the outer wall of the guide seat 200. As the sleeve 310 continues to descend, the pressing elastic element 330 is compressed, and the elastic force of the pressing elastic element 330 pushes against the pressing block 320, thereby ensuring that the guide seat 200 remains pressed against the valve stem 20. Since the inclined cone surface 210 increases from top to bottom, as the supporting blocks 340 press against the inclined cone surface 210 from top to bottom, the supporting elastic element 350 is compressed. Thus, when each supporting block 340 descends from top to bottom along the inclined cone surface 210, each supporting block 340 pushes the sealing ring 30, which is placed on the guide seat 200, to slide down along the inclined cone surface 210 from top to bottom. Finally, the sealing ring 30 is opened by the inclined cone surface 210 and smoothly fitted into the annular groove 21 of the valve stem 20. In this way, the sealing ring 30 is assembled onto the valve stem 20. Furthermore, an oil injection hole 111 is provided radially on the support seat 100 supporting the valve stem 20. This oil injection hole 111 is used to communicate with an external oil valve. Therefore, when the valve stem 20 is inserted into the material loading groove 121, the oil valve can apply oil to the external threaded part of the valve stem 20 through the oil injection hole 111. In this way, the thermostatic valve core valve stem oiling and sealing ring assembly device 10 of this application can not only oil the valve stem 20, but also conveniently and quickly assemble the sealing ring 30, effectively improving the assembly efficiency.

[0034] In one embodiment, both the pressing elastic element 330 and the supporting elastic element 350 are helical springs. In this way, the elastic force pushes the pressing block 320 to press against the top of the guide seat 200, and pushes the supporting block 340 to press against the inclined conical surface 210 of the guide seat 200.

[0035] like Figures 1 to 4 As shown, in one embodiment, the sleeve 310 includes a seat body 311 and a bottom ring 312. The sliding cavity 3111 is located inside the seat body 311, and the bottom ring 312 is disposed on the bottom wall of the seat body 311. Each top holding block 340 and each top holding elastic member 350 are located inside the bottom ring 312. The inner diameter of the bottom ring 312 is smaller than the outer diameter of the pressure block 320.

[0036] It should be noted that the bottom ring 312 is fixed to the base 311 by screws. The bottom ring 312 has a ring-shaped structure, and the inner diameter of the bottom ring 312 is smaller than the outer diameter of the pressure block 320. In this way, the pressure block 320 is confined within the sliding cavity 3111 of the base 311.

[0037] like Figures 1 to 3 As shown, in one embodiment, the sleeve 310 further includes a plurality of blocking blocks 313, and the bottom ring 312 has a plurality of side holes 3121 along the radial direction. Each supporting block 340 and each supporting elastic member 350 are located in the side holes 3121. The blocking blocks 313 are screwed into the side holes 3121 and abut against the supporting elastic members 350.

[0038] It should be noted that, in order to ensure that the top holding block 340 can be stably pushed by the top holding elastic member 350 so that part of the structure can extend into the sliding cavity 3111, a side hole 3121 is opened in the radial direction of the bottom ring 312. After the top holding block 340 and the top holding elastic member 350 are installed into the side hole 3121 from the outside, the plug block 313 is screwed and fixed to the side hole 3121. The above assembly structure facilitates the processing of parts.

[0039] like Figures 1 to 4 As shown, in one embodiment, the sleeve 310 further includes a fixing post 314, which is disposed on the end of the seat body 311 away from the bottom ring 312.

[0040] It should be noted that the thermostatic valve core and valve stem oiling and sealing ring assembly device 10 of this application can be installed on a stamping device for use. The bearing seat 100 is fixedly installed below, and the ring assembly 300 is fixedly installed on the output shaft of the stamping device. The stamping device drives the ring assembly 300 to move up and down to complete the assembly action. To facilitate the fixing of the ring assembly 300 to the output shaft of the stamping device, the fixing post 314 is locked to the top of the seat 311 with screws. By fixing the fixing post 314 to the output shaft of the stamping device, the ring assembly 300 can be fixedly installed on the output shaft of the stamping device. It should be noted that the stamping device is not a structure protected in this application and will not be described in detail here.

[0041] like Figures 1 to 5 As shown, in one embodiment, the support base 100 includes a base block 110, a material block 120, and two locking blocks 130. The material loading groove 121 is located on the material block 120, and the oil injection hole 111 is located on the base block 110. The material block 120 is detachably mounted on the base block 110, and the two locking blocks 130 are both mounted on the base block 110. The two locking blocks 130 are used to engage the opposite sides of the material block 120.

[0042] It should be noted that, since the valve stem 20 has different models, the above structure is designed so that the thermostatic valve core valve stem oiling and sealing ring assembly device 10 can be used to oil and assemble the sealing ring 30 for different models of valve stem 20. Specifically, the material loading groove 121 is located on the material loading block 120, and the material loading block 120 is clamped and fixed to the base block 110 by two locking blocks 130. In this way, the material loading groove 121 of each material loading block 120 is adapted to one model of valve stem 20. When oiling and assembling the sealing ring 30 for different valve stem 20, the material loading block 120 can be replaced simply by loosening the locking blocks 130.

[0043] like Figure 5 As shown, in one embodiment, the material block 120 has a first inclined surface 122 on each of its opposite sides, and the locking block 130 has a second inclined surface 131. The two second inclined surfaces 131 are used to fit and engage the two first inclined surfaces 122.

[0044] It should be noted that the cross-section of the first inclined surface 122 on both sides of the material block 120 is V-shaped. Thus, when the two locking blocks 130 are locked and fixed to the base block 110 by screws, the two locking blocks 130 press against the opposite sides of the material block 120 respectively, thereby causing the second inclined surface 131 to press and fix the first inclined surface 122, so that the material block 120 is locked and fixed by the two locking blocks 130.

[0045] like Figure 4 and Figure 5 As shown, in one embodiment, the material block 120 has a plurality of oil seepage holes 123 along its side, and the oil seepage holes 123 are connected to the oil injection hole 111. Thus, when the oil valve injects oil into the oil injection hole 111, the oil can be applied to the external thread portion of the valve stem 20 located in the material loading groove 121 through the oil seepage holes 123.

[0046] like Figures 1 to 4 As shown, in one embodiment, the support base 100 further includes a spacer 140, which is disposed on the base block 110 so that an oil cavity 112 is formed between the spacer 140 and the base block 110. The oil cavity 112 is connected to the oil injection hole 111. The material block 120 is detachably disposed in the spacer 140, and the oil leakage hole 123 is connected to the oil cavity 112.

[0047] It should be noted that when the material carrier block 120 is replaced, in order to allow oil to quickly seep out from the oil seepage hole 123 and be applied to the external thread of the valve stem 20, a spacer 140 is installed inside the base block 110, forming an annular oil cavity 112 between the base block 110 and the spacer 140. Multiple through holes are provided on the spacer 140, allowing the oil cavity 112 to communicate with the oil seepage hole 123 of the material carrier block 120 through these through holes. When the material carrier block 120 is replaced, the oil in the oil cavity 112 remains unchanged, and the oil in the oil cavity 112 can quickly be applied to the external thread of the valve stem 20 through the oil seepage hole 123 of the newly installed material carrier block 120.

[0048] like Figure 3 and Figure 4 As shown, in one embodiment, two first sealing rings 150 are provided between the spacer 140 and the material block 120, and the two first sealing rings 150 are located on both sides of the oil seepage hole 123 along the radial direction of the material groove 121.

[0049] Thus, by using two first sealing rings 150 to seal the spacer 140 and the material block 120, the oil in the oil chamber 112 can be stably applied to the external thread of the valve stem 20 through the oil leakage hole 123, without overflowing from the gap between the spacer 140 and the material block 120. In one embodiment, the first sealing ring 150 is an O-ring.

[0050] like Figures 1 to 4 As shown, in one embodiment, the support base 100 further includes a support frame 160, on which the base block 110, the spacer 140, and the material block 120 are all disposed.

[0051] It should be noted that, for example, a sealing ring is provided between the base block 110 and the support frame 160, and between the material block 120 and the support frame 160, respectively. This eliminates the gaps between the base block 110 and the spacer 140 and the material block 120, preventing oil spillage. Furthermore, the support frame 160 supports the base block 110, the spacer 140, and the material block 120, facilitating the installation of a cylinder below the base block 110. After the valve stem 20 is oiled and the sealing ring 30 is assembled, the oil on the external thread of the valve stem 20, which has a certain viscosity, allows the valve stem 20 to be pushed out of the material loading groove 121 of the material block 120 by installing a cylinder below the base block 110.

[0052] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A device for applying oil to the valve core and stem of a thermostatic valve and assembling a sealing ring, characterized in that, include: The support seat has a material loading groove for receiving the valve stem along the vertical direction, and an oil injection hole is provided along the side. A guide seat, wherein an inclined conical surface is provided on the outer side wall of the guide seat, the outer diameter of the inclined conical surface increasing from top to bottom, the guide seat being used to fasten onto the valve stem; and A ring assembly includes a ring base, a pressure block, a pressure-holding elastic element, a plurality of top-holding blocks, and a plurality of top-holding elastic elements. The bottom wall of the ring base has a sliding cavity. The pressure block is slidably disposed within the sliding cavity. The pressure-holding elastic elements abut against the pressure block and the ring base respectively. Each top-holding block is slidably disposed within the ring base along the radial direction of the sliding cavity, and the top-holding blocks are circumferentially distributed around the sliding cavity. One end of each top-holding elastic element abuts against the respective top-holding block, and the other end of each top-holding elastic element abuts against the ring base. The top-holding elastic elements are used to push against the top-holding blocks, so that a portion of the structure of the top-holding block extends into the sliding cavity. When the sleeve is fitted onto the guide seat, the pressure block presses against the guide seat, and each of the top holding blocks abuts against the inclined conical surface of the guide seat, thereby causing each of the top holding blocks to push the sealing ring along the inclined conical surface into the annular groove.

2. The thermostatic valve core and stem oiling and sealing ring assembly device according to claim 1, characterized in that, The sleeve includes a seat body and a bottom ring. The sliding cavity is located inside the seat body. The bottom ring is disposed on the bottom wall of the seat body. Each of the top holding blocks and each of the top holding elastic elements are located inside the bottom ring. The inner diameter of the bottom ring is smaller than the outer diameter of the pressure block.

3. The thermostatic valve core and stem oiling and sealing ring assembly device according to claim 2, characterized in that, The sleeve also includes several plugs. The bottom ring has several side holes along the radial direction. Each of the top holding blocks and each of the top holding elastic members are located in the side holes. The plugs are screwed into the side holes and abut against the top holding elastic members.

4. The thermostatic valve core and stem oiling and sealing ring assembly device according to claim 3, characterized in that, The sleeve also includes a fixing post, which is disposed on the end of the seat body away from the bottom ring.

5. The thermostatic valve core and stem oiling and sealing ring assembly device according to claim 1, characterized in that, The support includes a base block, a material block, and two locking blocks. The material loading groove is located on the material block, and the oil injection hole is located on the base block. The material block is detachably mounted on the base block, and the two locking blocks are both mounted on the base block. The two locking blocks are used to engage the opposite sides of the material block.

6. The thermostatic valve core and stem oiling and sealing ring assembly device according to claim 5, characterized in that, The material block has a first inclined surface on each of its two opposing sides, and the clamping block has a second inclined surface. The two second inclined surfaces are used to fit together with the two first inclined surfaces.

7. The thermostatic valve core and stem oiling and sealing ring assembly device according to claim 5, characterized in that, The material block has several oil seepage holes along its side, and the oil seepage holes are connected to the oil injection holes.

8. The thermostatic valve core and stem oiling and sealing ring assembly device according to claim 7, characterized in that, The support also includes a spacer sleeve, which is disposed on the base block to form an oil cavity between the spacer sleeve and the base block. The oil cavity is connected to the oil injection hole. The material block is detachably disposed inside the spacer sleeve, and the oil leakage hole is connected to the oil cavity.

9. The thermostatic valve core and stem oiling and sealing ring assembly device according to claim 8, characterized in that, Two first sealing rings are provided between the spacer and the material block, and the two first sealing rings are located on both sides of the oil seepage hole along the radial direction of the material loading groove.

10. The thermostatic valve core and stem oiling and sealing ring assembly device according to claim 8, characterized in that, The bearing seat also includes a support frame, and the base block, the spacer, and the material block are all disposed on the support frame.

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